diff options
Diffstat (limited to 'contrib/llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/X86/X86ISelLowering.cpp | 3418 |
1 files changed, 2063 insertions, 1355 deletions
diff --git a/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp b/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp index b35fb514bf94..69341869aa3e 100644 --- a/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/contrib/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -14,20 +14,15 @@ #define DEBUG_TYPE "x86-isel" #include "X86ISelLowering.h" +#include "Utils/X86ShuffleDecode.h" #include "X86.h" #include "X86InstrBuilder.h" #include "X86TargetMachine.h" #include "X86TargetObjectFile.h" -#include "Utils/X86ShuffleDecode.h" -#include "llvm/CallingConv.h" -#include "llvm/Constants.h" -#include "llvm/DerivedTypes.h" -#include "llvm/GlobalAlias.h" -#include "llvm/GlobalVariable.h" -#include "llvm/Function.h" -#include "llvm/Instructions.h" -#include "llvm/Intrinsics.h" -#include "llvm/LLVMContext.h" +#include "llvm/ADT/SmallSet.h" +#include "llvm/ADT/Statistic.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/VariadicFunction.h" #include "llvm/CodeGen/IntrinsicLowering.h" #include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineFunction.h" @@ -35,14 +30,19 @@ #include "llvm/CodeGen/MachineJumpTableInfo.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/MachineRegisterInfo.h" +#include "llvm/IR/CallingConv.h" +#include "llvm/IR/Constants.h" +#include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/Function.h" +#include "llvm/IR/GlobalAlias.h" +#include "llvm/IR/GlobalVariable.h" +#include "llvm/IR/Instructions.h" +#include "llvm/IR/Intrinsics.h" +#include "llvm/IR/LLVMContext.h" #include "llvm/MC/MCAsmInfo.h" #include "llvm/MC/MCContext.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCSymbol.h" -#include "llvm/ADT/SmallSet.h" -#include "llvm/ADT/Statistic.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/VariadicFunction.h" #include "llvm/Support/CallSite.h" #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" @@ -85,6 +85,11 @@ static SDValue Extract128BitVector(SDValue Vec, unsigned IdxVal, unsigned NormalizedIdxVal = (((IdxVal * ElVT.getSizeInBits()) / 128) * ElemsPerChunk); + // If the input is a buildvector just emit a smaller one. + if (Vec.getOpcode() == ISD::BUILD_VECTOR) + return DAG.getNode(ISD::BUILD_VECTOR, dl, ResultVT, + Vec->op_begin()+NormalizedIdxVal, ElemsPerChunk); + SDValue VecIdx = DAG.getIntPtrConstant(NormalizedIdxVal); SDValue Result = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, ResultVT, Vec, VecIdx); @@ -181,9 +186,12 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setSchedulingPreference(Sched::RegPressure); setStackPointerRegisterToSaveRestore(RegInfo->getStackRegister()); - // Bypass i32 with i8 on Atom when compiling with O2 - if (Subtarget->hasSlowDivide() && TM.getOptLevel() >= CodeGenOpt::Default) + // Bypass expensive divides on Atom when compiling with O2 + if (Subtarget->hasSlowDivide() && TM.getOptLevel() >= CodeGenOpt::Default) { addBypassSlowDiv(32, 8); + if (Subtarget->is64Bit()) + addBypassSlowDiv(64, 16); + } if (Subtarget->isTargetWindows() && !Subtarget->isTargetCygMing()) { // Setup Windows compiler runtime calls. @@ -368,7 +376,13 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::BR_JT , MVT::Other, Expand); setOperationAction(ISD::BRCOND , MVT::Other, Custom); - setOperationAction(ISD::BR_CC , MVT::Other, Expand); + setOperationAction(ISD::BR_CC , MVT::f32, Expand); + setOperationAction(ISD::BR_CC , MVT::f64, Expand); + setOperationAction(ISD::BR_CC , MVT::f80, Expand); + setOperationAction(ISD::BR_CC , MVT::i8, Expand); + setOperationAction(ISD::BR_CC , MVT::i16, Expand); + setOperationAction(ISD::BR_CC , MVT::i32, Expand); + setOperationAction(ISD::BR_CC , MVT::i64, Expand); setOperationAction(ISD::SELECT_CC , MVT::Other, Expand); if (Subtarget->is64Bit()) setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i32, Legal); @@ -456,7 +470,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::SETCC , MVT::i64 , Custom); } setOperationAction(ISD::EH_RETURN , MVT::Other, Custom); - // NOTE: EH_SJLJ_SETJMP/_LONGJMP supported here is NOT intened to support + // NOTE: EH_SJLJ_SETJMP/_LONGJMP supported here is NOT intended to support // SjLj exception handling but a light-weight setjmp/longjmp replacement to // support continuation, user-level threading, and etc.. As a result, no // other SjLj exception interfaces are implemented and please don't build @@ -605,10 +619,12 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::FGETSIGN, MVT::i32, Custom); // We don't support sin/cos/fmod - setOperationAction(ISD::FSIN , MVT::f64, Expand); - setOperationAction(ISD::FCOS , MVT::f64, Expand); - setOperationAction(ISD::FSIN , MVT::f32, Expand); - setOperationAction(ISD::FCOS , MVT::f32, Expand); + setOperationAction(ISD::FSIN , MVT::f64, Expand); + setOperationAction(ISD::FCOS , MVT::f64, Expand); + setOperationAction(ISD::FSINCOS, MVT::f64, Expand); + setOperationAction(ISD::FSIN , MVT::f32, Expand); + setOperationAction(ISD::FCOS , MVT::f32, Expand); + setOperationAction(ISD::FSINCOS, MVT::f32, Expand); // Expand FP immediates into loads from the stack, except for the special // cases we handle. @@ -633,8 +649,9 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::FCOPYSIGN, MVT::f32, Custom); // We don't support sin/cos/fmod - setOperationAction(ISD::FSIN , MVT::f32, Expand); - setOperationAction(ISD::FCOS , MVT::f32, Expand); + setOperationAction(ISD::FSIN , MVT::f32, Expand); + setOperationAction(ISD::FCOS , MVT::f32, Expand); + setOperationAction(ISD::FSINCOS, MVT::f32, Expand); // Special cases we handle for FP constants. addLegalFPImmediate(APFloat(+0.0f)); // xorps @@ -644,8 +661,9 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) addLegalFPImmediate(APFloat(-1.0)); // FLD1/FCHS if (!TM.Options.UnsafeFPMath) { - setOperationAction(ISD::FSIN , MVT::f64 , Expand); - setOperationAction(ISD::FCOS , MVT::f64 , Expand); + setOperationAction(ISD::FSIN , MVT::f64, Expand); + setOperationAction(ISD::FCOS , MVT::f64, Expand); + setOperationAction(ISD::FSINCOS, MVT::f64, Expand); } } else if (!TM.Options.UseSoftFloat) { // f32 and f64 in x87. @@ -659,10 +677,12 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::FCOPYSIGN, MVT::f32, Expand); if (!TM.Options.UnsafeFPMath) { - setOperationAction(ISD::FSIN , MVT::f32 , Expand); - setOperationAction(ISD::FSIN , MVT::f64 , Expand); - setOperationAction(ISD::FCOS , MVT::f32 , Expand); - setOperationAction(ISD::FCOS , MVT::f64 , Expand); + setOperationAction(ISD::FSIN , MVT::f64, Expand); + setOperationAction(ISD::FSIN , MVT::f32, Expand); + setOperationAction(ISD::FCOS , MVT::f64, Expand); + setOperationAction(ISD::FCOS , MVT::f32, Expand); + setOperationAction(ISD::FSINCOS, MVT::f64, Expand); + setOperationAction(ISD::FSINCOS, MVT::f32, Expand); } addLegalFPImmediate(APFloat(+0.0)); // FLD0 addLegalFPImmediate(APFloat(+1.0)); // FLD1 @@ -699,8 +719,9 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) } if (!TM.Options.UnsafeFPMath) { - setOperationAction(ISD::FSIN , MVT::f80 , Expand); - setOperationAction(ISD::FCOS , MVT::f80 , Expand); + setOperationAction(ISD::FSIN , MVT::f80, Expand); + setOperationAction(ISD::FCOS , MVT::f80, Expand); + setOperationAction(ISD::FSINCOS, MVT::f80, Expand); } setOperationAction(ISD::FFLOOR, MVT::f80, Expand); @@ -725,74 +746,81 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) // First set operation action for all vector types to either promote // (for widening) or expand (for scalarization). Then we will selectively // turn on ones that can be effectively codegen'd. - for (int VT = MVT::FIRST_VECTOR_VALUETYPE; - VT <= MVT::LAST_VECTOR_VALUETYPE; ++VT) { - setOperationAction(ISD::ADD , (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SUB , (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FADD, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FNEG, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FSUB, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::MUL , (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FMUL, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SDIV, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::UDIV, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FDIV, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SREM, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::UREM, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::LOAD, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::VECTOR_SHUFFLE, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::EXTRACT_VECTOR_ELT,(MVT::SimpleValueType)VT,Expand); - setOperationAction(ISD::INSERT_VECTOR_ELT,(MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::EXTRACT_SUBVECTOR,(MVT::SimpleValueType)VT,Expand); - setOperationAction(ISD::INSERT_SUBVECTOR,(MVT::SimpleValueType)VT,Expand); - setOperationAction(ISD::FABS, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FSIN, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FCOS, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FREM, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FMA, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FPOWI, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FSQRT, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FCOPYSIGN, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FFLOOR, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SMUL_LOHI, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::UMUL_LOHI, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SDIVREM, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::UDIVREM, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FPOW, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::CTPOP, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::CTTZ, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::CTTZ_ZERO_UNDEF, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::CTLZ, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::CTLZ_ZERO_UNDEF, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SHL, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SRA, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SRL, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::ROTL, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::ROTR, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::BSWAP, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SETCC, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FLOG, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FLOG2, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FLOG10, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FEXP, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FEXP2, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FP_TO_UINT, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::FP_TO_SINT, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::UINT_TO_FP, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SINT_TO_FP, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, (MVT::SimpleValueType)VT,Expand); - setOperationAction(ISD::TRUNCATE, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::SIGN_EXTEND, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::ZERO_EXTEND, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::ANY_EXTEND, (MVT::SimpleValueType)VT, Expand); - setOperationAction(ISD::VSELECT, (MVT::SimpleValueType)VT, Expand); + for (int i = MVT::FIRST_VECTOR_VALUETYPE; + i <= MVT::LAST_VECTOR_VALUETYPE; ++i) { + MVT VT = (MVT::SimpleValueType)i; + setOperationAction(ISD::ADD , VT, Expand); + setOperationAction(ISD::SUB , VT, Expand); + setOperationAction(ISD::FADD, VT, Expand); + setOperationAction(ISD::FNEG, VT, Expand); + setOperationAction(ISD::FSUB, VT, Expand); + setOperationAction(ISD::MUL , VT, Expand); + setOperationAction(ISD::FMUL, VT, Expand); + setOperationAction(ISD::SDIV, VT, Expand); + setOperationAction(ISD::UDIV, VT, Expand); + setOperationAction(ISD::FDIV, VT, Expand); + setOperationAction(ISD::SREM, VT, Expand); + setOperationAction(ISD::UREM, VT, Expand); + setOperationAction(ISD::LOAD, VT, Expand); + setOperationAction(ISD::VECTOR_SHUFFLE, VT, Expand); + setOperationAction(ISD::EXTRACT_VECTOR_ELT, VT,Expand); + setOperationAction(ISD::INSERT_VECTOR_ELT, VT, Expand); + setOperationAction(ISD::EXTRACT_SUBVECTOR, VT,Expand); + setOperationAction(ISD::INSERT_SUBVECTOR, VT,Expand); + setOperationAction(ISD::FABS, VT, Expand); + setOperationAction(ISD::FSIN, VT, Expand); + setOperationAction(ISD::FSINCOS, VT, Expand); + setOperationAction(ISD::FCOS, VT, Expand); + setOperationAction(ISD::FSINCOS, VT, Expand); + setOperationAction(ISD::FREM, VT, Expand); + setOperationAction(ISD::FMA, VT, Expand); + setOperationAction(ISD::FPOWI, VT, Expand); + setOperationAction(ISD::FSQRT, VT, Expand); + setOperationAction(ISD::FCOPYSIGN, VT, Expand); + setOperationAction(ISD::FFLOOR, VT, Expand); + setOperationAction(ISD::FCEIL, VT, Expand); + setOperationAction(ISD::FTRUNC, VT, Expand); + setOperationAction(ISD::FRINT, VT, Expand); + setOperationAction(ISD::FNEARBYINT, VT, Expand); + setOperationAction(ISD::SMUL_LOHI, VT, Expand); + setOperationAction(ISD::UMUL_LOHI, VT, Expand); + setOperationAction(ISD::SDIVREM, VT, Expand); + setOperationAction(ISD::UDIVREM, VT, Expand); + setOperationAction(ISD::FPOW, VT, Expand); + setOperationAction(ISD::CTPOP, VT, Expand); + setOperationAction(ISD::CTTZ, VT, Expand); + setOperationAction(ISD::CTTZ_ZERO_UNDEF, VT, Expand); + setOperationAction(ISD::CTLZ, VT, Expand); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, VT, Expand); + setOperationAction(ISD::SHL, VT, Expand); + setOperationAction(ISD::SRA, VT, Expand); + setOperationAction(ISD::SRL, VT, Expand); + setOperationAction(ISD::ROTL, VT, Expand); + setOperationAction(ISD::ROTR, VT, Expand); + setOperationAction(ISD::BSWAP, VT, Expand); + setOperationAction(ISD::SETCC, VT, Expand); + setOperationAction(ISD::FLOG, VT, Expand); + setOperationAction(ISD::FLOG2, VT, Expand); + setOperationAction(ISD::FLOG10, VT, Expand); + setOperationAction(ISD::FEXP, VT, Expand); + setOperationAction(ISD::FEXP2, VT, Expand); + setOperationAction(ISD::FP_TO_UINT, VT, Expand); + setOperationAction(ISD::FP_TO_SINT, VT, Expand); + setOperationAction(ISD::UINT_TO_FP, VT, Expand); + setOperationAction(ISD::SINT_TO_FP, VT, Expand); + setOperationAction(ISD::SIGN_EXTEND_INREG, VT,Expand); + setOperationAction(ISD::TRUNCATE, VT, Expand); + setOperationAction(ISD::SIGN_EXTEND, VT, Expand); + setOperationAction(ISD::ZERO_EXTEND, VT, Expand); + setOperationAction(ISD::ANY_EXTEND, VT, Expand); + setOperationAction(ISD::VSELECT, VT, Expand); for (int InnerVT = MVT::FIRST_VECTOR_VALUETYPE; InnerVT <= MVT::LAST_VECTOR_VALUETYPE; ++InnerVT) - setTruncStoreAction((MVT::SimpleValueType)VT, + setTruncStoreAction(VT, (MVT::SimpleValueType)InnerVT, Expand); - setLoadExtAction(ISD::SEXTLOAD, (MVT::SimpleValueType)VT, Expand); - setLoadExtAction(ISD::ZEXTLOAD, (MVT::SimpleValueType)VT, Expand); - setLoadExtAction(ISD::EXTLOAD, (MVT::SimpleValueType)VT, Expand); + setLoadExtAction(ISD::SEXTLOAD, VT, Expand); + setLoadExtAction(ISD::ZEXTLOAD, VT, Expand); + setLoadExtAction(ISD::EXTLOAD, VT, Expand); } // FIXME: In order to prevent SSE instructions being expanded to MMX ones @@ -865,6 +893,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::ADD, MVT::v8i16, Legal); setOperationAction(ISD::ADD, MVT::v4i32, Legal); setOperationAction(ISD::ADD, MVT::v2i64, Legal); + setOperationAction(ISD::MUL, MVT::v4i32, Custom); setOperationAction(ISD::MUL, MVT::v2i64, Custom); setOperationAction(ISD::SUB, MVT::v16i8, Legal); setOperationAction(ISD::SUB, MVT::v8i16, Legal); @@ -973,7 +1002,15 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::FNEARBYINT, MVT::f64, Legal); setOperationAction(ISD::FFLOOR, MVT::v4f32, Legal); + setOperationAction(ISD::FCEIL, MVT::v4f32, Legal); + setOperationAction(ISD::FTRUNC, MVT::v4f32, Legal); + setOperationAction(ISD::FRINT, MVT::v4f32, Legal); + setOperationAction(ISD::FNEARBYINT, MVT::v4f32, Legal); setOperationAction(ISD::FFLOOR, MVT::v2f64, Legal); + setOperationAction(ISD::FCEIL, MVT::v2f64, Legal); + setOperationAction(ISD::FTRUNC, MVT::v2f64, Legal); + setOperationAction(ISD::FRINT, MVT::v2f64, Legal); + setOperationAction(ISD::FNEARBYINT, MVT::v2f64, Legal); // FIXME: Do we need to handle scalar-to-vector here? setOperationAction(ISD::MUL, MVT::v4i32, Legal); @@ -1016,26 +1053,21 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::SRA, MVT::v8i16, Custom); setOperationAction(ISD::SRA, MVT::v16i8, Custom); - if (Subtarget->hasAVX2()) { - setOperationAction(ISD::SRL, MVT::v2i64, Legal); - setOperationAction(ISD::SRL, MVT::v4i32, Legal); + // In the customized shift lowering, the legal cases in AVX2 will be + // recognized. + setOperationAction(ISD::SRL, MVT::v2i64, Custom); + setOperationAction(ISD::SRL, MVT::v4i32, Custom); - setOperationAction(ISD::SHL, MVT::v2i64, Legal); - setOperationAction(ISD::SHL, MVT::v4i32, Legal); - - setOperationAction(ISD::SRA, MVT::v4i32, Legal); - } else { - setOperationAction(ISD::SRL, MVT::v2i64, Custom); - setOperationAction(ISD::SRL, MVT::v4i32, Custom); + setOperationAction(ISD::SHL, MVT::v2i64, Custom); + setOperationAction(ISD::SHL, MVT::v4i32, Custom); - setOperationAction(ISD::SHL, MVT::v2i64, Custom); - setOperationAction(ISD::SHL, MVT::v4i32, Custom); + setOperationAction(ISD::SRA, MVT::v4i32, Custom); - setOperationAction(ISD::SRA, MVT::v4i32, Custom); - } + setOperationAction(ISD::SDIV, MVT::v8i16, Custom); + setOperationAction(ISD::SDIV, MVT::v4i32, Custom); } - if (!TM.Options.UseSoftFloat && Subtarget->hasAVX()) { + if (!TM.Options.UseSoftFloat && Subtarget->hasFp256()) { addRegisterClass(MVT::v32i8, &X86::VR256RegClass); addRegisterClass(MVT::v16i16, &X86::VR256RegClass); addRegisterClass(MVT::v8i32, &X86::VR256RegClass); @@ -1053,6 +1085,10 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::FDIV, MVT::v8f32, Legal); setOperationAction(ISD::FSQRT, MVT::v8f32, Legal); setOperationAction(ISD::FFLOOR, MVT::v8f32, Legal); + setOperationAction(ISD::FCEIL, MVT::v8f32, Legal); + setOperationAction(ISD::FTRUNC, MVT::v8f32, Legal); + setOperationAction(ISD::FRINT, MVT::v8f32, Legal); + setOperationAction(ISD::FNEARBYINT, MVT::v8f32, Legal); setOperationAction(ISD::FNEG, MVT::v8f32, Custom); setOperationAction(ISD::FABS, MVT::v8f32, Custom); @@ -1062,14 +1098,20 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::FDIV, MVT::v4f64, Legal); setOperationAction(ISD::FSQRT, MVT::v4f64, Legal); setOperationAction(ISD::FFLOOR, MVT::v4f64, Legal); + setOperationAction(ISD::FCEIL, MVT::v4f64, Legal); + setOperationAction(ISD::FTRUNC, MVT::v4f64, Legal); + setOperationAction(ISD::FRINT, MVT::v4f64, Legal); + setOperationAction(ISD::FNEARBYINT, MVT::v4f64, Legal); setOperationAction(ISD::FNEG, MVT::v4f64, Custom); setOperationAction(ISD::FABS, MVT::v4f64, Custom); setOperationAction(ISD::TRUNCATE, MVT::v8i16, Custom); + setOperationAction(ISD::TRUNCATE, MVT::v4i32, Custom); setOperationAction(ISD::FP_TO_SINT, MVT::v8i16, Custom); setOperationAction(ISD::FP_TO_SINT, MVT::v8i32, Legal); + setOperationAction(ISD::SINT_TO_FP, MVT::v8i16, Promote); setOperationAction(ISD::SINT_TO_FP, MVT::v8i32, Legal); setOperationAction(ISD::FP_ROUND, MVT::v4f32, Legal); @@ -1088,6 +1130,8 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::SRA, MVT::v16i16, Custom); setOperationAction(ISD::SRA, MVT::v32i8, Custom); + setOperationAction(ISD::SDIV, MVT::v16i16, Custom); + setOperationAction(ISD::SETCC, MVT::v32i8, Custom); setOperationAction(ISD::SETCC, MVT::v16i16, Custom); setOperationAction(ISD::SETCC, MVT::v8i32, Custom); @@ -1102,16 +1146,23 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::VSELECT, MVT::v8i32, Legal); setOperationAction(ISD::VSELECT, MVT::v8f32, Legal); + setOperationAction(ISD::SIGN_EXTEND, MVT::v4i64, Custom); + setOperationAction(ISD::SIGN_EXTEND, MVT::v8i32, Custom); + setOperationAction(ISD::ZERO_EXTEND, MVT::v4i64, Custom); + setOperationAction(ISD::ZERO_EXTEND, MVT::v8i32, Custom); + setOperationAction(ISD::ANY_EXTEND, MVT::v4i64, Custom); + setOperationAction(ISD::ANY_EXTEND, MVT::v8i32, Custom); + if (Subtarget->hasFMA() || Subtarget->hasFMA4()) { - setOperationAction(ISD::FMA, MVT::v8f32, Custom); - setOperationAction(ISD::FMA, MVT::v4f64, Custom); - setOperationAction(ISD::FMA, MVT::v4f32, Custom); - setOperationAction(ISD::FMA, MVT::v2f64, Custom); - setOperationAction(ISD::FMA, MVT::f32, Custom); - setOperationAction(ISD::FMA, MVT::f64, Custom); + setOperationAction(ISD::FMA, MVT::v8f32, Legal); + setOperationAction(ISD::FMA, MVT::v4f64, Legal); + setOperationAction(ISD::FMA, MVT::v4f32, Legal); + setOperationAction(ISD::FMA, MVT::v2f64, Legal); + setOperationAction(ISD::FMA, MVT::f32, Legal); + setOperationAction(ISD::FMA, MVT::f64, Legal); } - if (Subtarget->hasAVX2()) { + if (Subtarget->hasInt256()) { setOperationAction(ISD::ADD, MVT::v4i64, Legal); setOperationAction(ISD::ADD, MVT::v8i32, Legal); setOperationAction(ISD::ADD, MVT::v16i16, Legal); @@ -1129,13 +1180,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::VSELECT, MVT::v32i8, Legal); - setOperationAction(ISD::SRL, MVT::v4i64, Legal); - setOperationAction(ISD::SRL, MVT::v8i32, Legal); - - setOperationAction(ISD::SHL, MVT::v4i64, Legal); - setOperationAction(ISD::SHL, MVT::v8i32, Legal); - - setOperationAction(ISD::SRA, MVT::v8i32, Legal); + setOperationAction(ISD::SDIV, MVT::v8i32, Custom); } else { setOperationAction(ISD::ADD, MVT::v4i64, Custom); setOperationAction(ISD::ADD, MVT::v8i32, Custom); @@ -1151,15 +1196,17 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::MUL, MVT::v8i32, Custom); setOperationAction(ISD::MUL, MVT::v16i16, Custom); // Don't lower v32i8 because there is no 128-bit byte mul + } - setOperationAction(ISD::SRL, MVT::v4i64, Custom); - setOperationAction(ISD::SRL, MVT::v8i32, Custom); + // In the customized shift lowering, the legal cases in AVX2 will be + // recognized. + setOperationAction(ISD::SRL, MVT::v4i64, Custom); + setOperationAction(ISD::SRL, MVT::v8i32, Custom); - setOperationAction(ISD::SHL, MVT::v4i64, Custom); - setOperationAction(ISD::SHL, MVT::v8i32, Custom); + setOperationAction(ISD::SHL, MVT::v4i64, Custom); + setOperationAction(ISD::SHL, MVT::v8i32, Custom); - setOperationAction(ISD::SRA, MVT::v8i32, Custom); - } + setOperationAction(ISD::SRA, MVT::v8i32, Custom); // Custom lower several nodes for 256-bit types. for (int i = MVT::FIRST_VECTOR_VALUETYPE; @@ -1217,7 +1264,6 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::INTRINSIC_WO_CHAIN, MVT::Other, Custom); setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::Other, Custom); - // Only custom-lower 64-bit SADDO and friends on 64-bit because we don't // handle type legalization for these operations here. // @@ -1246,6 +1292,19 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setLibcallName(RTLIB::SRA_I128, 0); } + // Combine sin / cos into one node or libcall if possible. + if (Subtarget->hasSinCos()) { + setLibcallName(RTLIB::SINCOS_F32, "sincosf"); + setLibcallName(RTLIB::SINCOS_F64, "sincos"); + if (Subtarget->isTargetDarwin()) { + // For MacOSX, we don't want to the normal expansion of a libcall to + // sincos. We want to issue a libcall to __sincos_stret to avoid memory + // traffic. + setOperationAction(ISD::FSINCOS, MVT::f64, Custom); + setOperationAction(ISD::FSINCOS, MVT::f32, Custom); + } + } + // We have target-specific dag combine patterns for the following nodes: setTargetDAGCombine(ISD::VECTOR_SHUFFLE); setTargetDAGCombine(ISD::EXTRACT_VECTOR_ELT); @@ -1266,6 +1325,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setTargetDAGCombine(ISD::ZERO_EXTEND); setTargetDAGCombine(ISD::ANY_EXTEND); setTargetDAGCombine(ISD::SIGN_EXTEND); + setTargetDAGCombine(ISD::SIGN_EXTEND_INREG); setTargetDAGCombine(ISD::TRUNCATE); setTargetDAGCombine(ISD::SINT_TO_FP); setTargetDAGCombine(ISD::SETCC); @@ -1277,28 +1337,25 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) // On Darwin, -Os means optimize for size without hurting performance, // do not reduce the limit. - maxStoresPerMemset = 16; // For @llvm.memset -> sequence of stores - maxStoresPerMemsetOptSize = Subtarget->isTargetDarwin() ? 16 : 8; - maxStoresPerMemcpy = 8; // For @llvm.memcpy -> sequence of stores - maxStoresPerMemcpyOptSize = Subtarget->isTargetDarwin() ? 8 : 4; - maxStoresPerMemmove = 8; // For @llvm.memmove -> sequence of stores - maxStoresPerMemmoveOptSize = Subtarget->isTargetDarwin() ? 8 : 4; + MaxStoresPerMemset = 16; // For @llvm.memset -> sequence of stores + MaxStoresPerMemsetOptSize = Subtarget->isTargetDarwin() ? 16 : 8; + MaxStoresPerMemcpy = 8; // For @llvm.memcpy -> sequence of stores + MaxStoresPerMemcpyOptSize = Subtarget->isTargetDarwin() ? 8 : 4; + MaxStoresPerMemmove = 8; // For @llvm.memmove -> sequence of stores + MaxStoresPerMemmoveOptSize = Subtarget->isTargetDarwin() ? 8 : 4; setPrefLoopAlignment(4); // 2^4 bytes. - benefitFromCodePlacementOpt = true; // Predictable cmov don't hurt on atom because it's in-order. - predictableSelectIsExpensive = !Subtarget->isAtom(); + PredictableSelectIsExpensive = !Subtarget->isAtom(); setPrefFunctionAlignment(4); // 2^4 bytes. } - EVT X86TargetLowering::getSetCCResultType(EVT VT) const { if (!VT.isVector()) return MVT::i8; return VT.changeVectorElementTypeToInteger(); } - /// getMaxByValAlign - Helper for getByValTypeAlignment to determine /// the desired ByVal argument alignment. static void getMaxByValAlign(Type *Ty, unsigned &MaxAlign) { @@ -1348,34 +1405,30 @@ unsigned X86TargetLowering::getByValTypeAlignment(Type *Ty) const { /// lowering. If DstAlign is zero that means it's safe to destination /// alignment can satisfy any constraint. Similarly if SrcAlign is zero it /// means there isn't a need to check it against alignment requirement, -/// probably because the source does not need to be loaded. If -/// 'IsZeroVal' is true, that means it's safe to return a -/// non-scalar-integer type, e.g. empty string source, constant, or loaded -/// from memory. 'MemcpyStrSrc' indicates whether the memcpy source is -/// constant so it does not need to be loaded. +/// probably because the source does not need to be loaded. If 'IsMemset' is +/// true, that means it's expanding a memset. If 'ZeroMemset' is true, that +/// means it's a memset of zero. 'MemcpyStrSrc' indicates whether the memcpy +/// source is constant so it does not need to be loaded. /// It returns EVT::Other if the type should be determined using generic /// target-independent logic. EVT X86TargetLowering::getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign, - bool IsZeroVal, + bool IsMemset, bool ZeroMemset, bool MemcpyStrSrc, MachineFunction &MF) const { - // FIXME: This turns off use of xmm stores for memset/memcpy on targets like - // linux. This is because the stack realignment code can't handle certain - // cases like PR2962. This should be removed when PR2962 is fixed. const Function *F = MF.getFunction(); - if (IsZeroVal && - !F->getFnAttributes().hasAttribute(Attributes::NoImplicitFloat)) { + if ((!IsMemset || ZeroMemset) && + !F->getAttributes().hasAttribute(AttributeSet::FunctionIndex, + Attribute::NoImplicitFloat)) { if (Size >= 16 && (Subtarget->isUnalignedMemAccessFast() || ((DstAlign == 0 || DstAlign >= 16) && - (SrcAlign == 0 || SrcAlign >= 16))) && - Subtarget->getStackAlignment() >= 16) { - if (Subtarget->getStackAlignment() >= 32) { - if (Subtarget->hasAVX2()) + (SrcAlign == 0 || SrcAlign >= 16)))) { + if (Size >= 32) { + if (Subtarget->hasInt256()) return MVT::v8i32; - if (Subtarget->hasAVX()) + if (Subtarget->hasFp256()) return MVT::v8f32; } if (Subtarget->hasSSE2()) @@ -1384,7 +1437,6 @@ X86TargetLowering::getOptimalMemOpType(uint64_t Size, return MVT::v4f32; } else if (!MemcpyStrSrc && Size >= 8 && !Subtarget->is64Bit() && - Subtarget->getStackAlignment() >= 8 && Subtarget->hasSSE2()) { // Do not use f64 to lower memcpy if source is string constant. It's // better to use i32 to avoid the loads. @@ -1396,6 +1448,21 @@ X86TargetLowering::getOptimalMemOpType(uint64_t Size, return MVT::i32; } +bool X86TargetLowering::isSafeMemOpType(MVT VT) const { + if (VT == MVT::f32) + return X86ScalarSSEf32; + else if (VT == MVT::f64) + return X86ScalarSSEf64; + return true; +} + +bool +X86TargetLowering::allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const { + if (Fast) + *Fast = Subtarget->isUnalignedMemAccessFast(); + return true; +} + /// getJumpTableEncoding - Return the entry encoding for a jump table in the /// current function. The returned value is a member of the /// MachineJumpTableInfo::JTEntryKind enum. @@ -1449,10 +1516,10 @@ getPICJumpTableRelocBaseExpr(const MachineFunction *MF, unsigned JTI, // FIXME: Why this routine is here? Move to RegInfo! std::pair<const TargetRegisterClass*, uint8_t> -X86TargetLowering::findRepresentativeClass(EVT VT) const{ +X86TargetLowering::findRepresentativeClass(MVT VT) const{ const TargetRegisterClass *RRC = 0; uint8_t Cost = 1; - switch (VT.getSimpleVT().SimpleTy) { + switch (VT.SimpleTy) { default: return TargetLowering::findRepresentativeClass(VT); case MVT::i8: case MVT::i16: case MVT::i32: case MVT::i64: @@ -1494,7 +1561,6 @@ bool X86TargetLowering::getStackCookieLocation(unsigned &AddressSpace, return true; } - //===----------------------------------------------------------------------===// // Return Value Calling Convention Implementation //===----------------------------------------------------------------------===// @@ -1526,14 +1592,7 @@ X86TargetLowering::LowerReturn(SDValue Chain, RVLocs, *DAG.getContext()); CCInfo.AnalyzeReturn(Outs, RetCC_X86); - // Add the regs to the liveout set for the function. - MachineRegisterInfo &MRI = DAG.getMachineFunction().getRegInfo(); - for (unsigned i = 0; i != RVLocs.size(); ++i) - if (RVLocs[i].isRegLoc() && !MRI.isLiveOut(RVLocs[i].getLocReg())) - MRI.addLiveOut(RVLocs[i].getLocReg()); - SDValue Flag; - SmallVector<SDValue, 6> RetOps; RetOps.push_back(Chain); // Operand #0 = Chain (updated below) // Operand #1 = Bytes To Pop @@ -1602,14 +1661,16 @@ X86TargetLowering::LowerReturn(SDValue Chain, Chain = DAG.getCopyToReg(Chain, dl, VA.getLocReg(), ValToCopy, Flag); Flag = Chain.getValue(1); + RetOps.push_back(DAG.getRegister(VA.getLocReg(), VA.getLocVT())); } - // The x86-64 ABI for returning structs by value requires that we copy - // the sret argument into %rax for the return. We saved the argument into - // a virtual register in the entry block, so now we copy the value out - // and into %rax. - if (Subtarget->is64Bit() && - DAG.getMachineFunction().getFunction()->hasStructRetAttr()) { + // The x86-64 ABIs require that for returning structs by value we copy + // the sret argument into %rax/%eax (depending on ABI) for the return. + // Win32 requires us to put the sret argument to %eax as well. + // We saved the argument into a virtual register in the entry block, + // so now we copy the value out and into %rax/%eax. + if (DAG.getMachineFunction().getFunction()->hasStructRetAttr() && + (Subtarget->is64Bit() || Subtarget->isTargetWindows())) { MachineFunction &MF = DAG.getMachineFunction(); X86MachineFunctionInfo *FuncInfo = MF.getInfo<X86MachineFunctionInfo>(); unsigned Reg = FuncInfo->getSRetReturnReg(); @@ -1617,11 +1678,14 @@ X86TargetLowering::LowerReturn(SDValue Chain, "SRetReturnReg should have been set in LowerFormalArguments()."); SDValue Val = DAG.getCopyFromReg(Chain, dl, Reg, getPointerTy()); - Chain = DAG.getCopyToReg(Chain, dl, X86::RAX, Val, Flag); + unsigned RetValReg + = (Subtarget->is64Bit() && !Subtarget->isTarget64BitILP32()) ? + X86::RAX : X86::EAX; + Chain = DAG.getCopyToReg(Chain, dl, RetValReg, Val, Flag); Flag = Chain.getValue(1); - // RAX now acts like a return value. - MRI.addLiveOut(X86::RAX); + // RAX/EAX now acts like a return value. + RetOps.push_back(DAG.getRegister(RetValReg, getPointerTy())); } RetOps[0] = Chain; // Update chain. @@ -1666,8 +1730,8 @@ bool X86TargetLowering::isUsedByReturnOnly(SDNode *N, SDValue &Chain) const { return true; } -EVT -X86TargetLowering::getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT, +MVT +X86TargetLowering::getTypeForExtArgOrReturn(MVT VT, ISD::NodeType ExtendKind) const { MVT ReturnMVT; // TODO: Is this also valid on 32-bit? @@ -1676,7 +1740,7 @@ X86TargetLowering::getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT, else ReturnMVT = MVT::i32; - EVT MinVT = getRegisterType(Context, ReturnMVT); + MVT MinVT = getRegisterType(ReturnMVT); return VT.bitsLT(MinVT) ? MinVT : VT; } @@ -1698,7 +1762,7 @@ X86TargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag, CCInfo.AnalyzeCallResult(Ins, RetCC_X86); // Copy all of the result registers out of their specified physreg. - for (unsigned i = 0; i != RVLocs.size(); ++i) { + for (unsigned i = 0, e = RVLocs.size(); i != e; ++i) { CCValAssign &VA = RVLocs[i]; EVT CopyVT = VA.getValVT(); @@ -1742,7 +1806,6 @@ X86TargetLowering::LowerCallResult(SDValue Chain, SDValue InFlag, return Chain; } - //===----------------------------------------------------------------------===// // C & StdCall & Fast Calling Convention implementation //===----------------------------------------------------------------------===// @@ -1806,7 +1869,8 @@ CreateCopyOfByValArgument(SDValue Src, SDValue Dst, SDValue Chain, /// IsTailCallConvention - Return true if the calling convention is one that /// supports tail call optimization. static bool IsTailCallConvention(CallingConv::ID CC) { - return (CC == CallingConv::Fast || CC == CallingConv::GHC); + return (CC == CallingConv::Fast || CC == CallingConv::GHC || + CC == CallingConv::HiPE); } bool X86TargetLowering::mayBeEmittedAsTailCall(CallInst *CI) const { @@ -1893,7 +1957,7 @@ X86TargetLowering::LowerFormalArguments(SDValue Chain, bool IsWin64 = Subtarget->isTargetWin64(); assert(!(isVarArg && IsTailCallConvention(CallConv)) && - "Var args not supported with calling convention fastcc or ghc"); + "Var args not supported with calling convention fastcc, ghc or hipe"); // Assign locations to all of the incoming arguments. SmallVector<CCValAssign, 16> ArgLocs; @@ -1955,10 +2019,9 @@ X86TargetLowering::LowerFormalArguments(SDValue Chain, if (VA.isExtInLoc()) { // Handle MMX values passed in XMM regs. - if (RegVT.isVector()) { - ArgValue = DAG.getNode(X86ISD::MOVDQ2Q, dl, VA.getValVT(), - ArgValue); - } else + if (RegVT.isVector()) + ArgValue = DAG.getNode(X86ISD::MOVDQ2Q, dl, VA.getValVT(), ArgValue); + else ArgValue = DAG.getNode(ISD::TRUNCATE, dl, VA.getValVT(), ArgValue); } } else { @@ -1974,14 +2037,18 @@ X86TargetLowering::LowerFormalArguments(SDValue Chain, InVals.push_back(ArgValue); } - // The x86-64 ABI for returning structs by value requires that we copy - // the sret argument into %rax for the return. Save the argument into - // a virtual register so that we can access it from the return points. - if (Is64Bit && MF.getFunction()->hasStructRetAttr()) { + // The x86-64 ABIs require that for returning structs by value we copy + // the sret argument into %rax/%eax (depending on ABI) for the return. + // Win32 requires us to put the sret argument to %eax as well. + // Save the argument into a virtual register so that we can access it + // from the return points. + if (MF.getFunction()->hasStructRetAttr() && + (Subtarget->is64Bit() || Subtarget->isTargetWindows())) { X86MachineFunctionInfo *FuncInfo = MF.getInfo<X86MachineFunctionInfo>(); unsigned Reg = FuncInfo->getSRetReturnReg(); if (!Reg) { - Reg = MF.getRegInfo().createVirtualRegister(getRegClassFor(MVT::i64)); + MVT PtrTy = getPointerTy(); + Reg = MF.getRegInfo().createVirtualRegister(getRegClassFor(PtrTy)); FuncInfo->setSRetReturnReg(Reg); } SDValue Copy = DAG.getCopyToReg(DAG.getEntryNode(), dl, Reg, InVals[0]); @@ -2034,8 +2101,8 @@ X86TargetLowering::LowerFormalArguments(SDValue Chain, unsigned NumIntRegs = CCInfo.getFirstUnallocated(GPR64ArgRegs, TotalNumIntRegs); - bool NoImplicitFloatOps = Fn->getFnAttributes(). - hasAttribute(Attributes::NoImplicitFloat); + bool NoImplicitFloatOps = Fn->getAttributes(). + hasAttribute(AttributeSet::FunctionIndex, Attribute::NoImplicitFloat); assert(!(NumXMMRegs && !Subtarget->hasSSE1()) && "SSE register cannot be used when SSE is disabled!"); assert(!(NumXMMRegs && MF.getTarget().Options.UseSoftFloat && @@ -2238,7 +2305,7 @@ X86TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, } assert(!(isVarArg && IsTailCallConvention(CallConv)) && - "Var args not supported with calling convention fastcc or ghc"); + "Var args not supported with calling convention fastcc, ghc or hipe"); // Analyze operands of the call, assigning locations to each operand. SmallVector<CCValAssign, 16> ArgLocs; @@ -2513,8 +2580,9 @@ X86TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, OpFlags = X86II::MO_DARWIN_STUB; } else if (Subtarget->isPICStyleRIPRel() && isa<Function>(GV) && - cast<Function>(GV)->getFnAttributes(). - hasAttribute(Attributes::NonLazyBind)) { + cast<Function>(GV)->getAttributes(). + hasAttribute(AttributeSet::FunctionIndex, + Attribute::NonLazyBind)) { // If the function is marked as non-lazy, generate an indirect call // which loads from the GOT directly. This avoids runtime overhead // at the cost of eager binding (and one extra byte of encoding). @@ -2594,8 +2662,7 @@ X86TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, // This isn't right, although it's probably harmless on x86; liveouts // should be computed from returns not tail calls. Consider a void // function making a tail call to a function returning int. - return DAG.getNode(X86ISD::TC_RETURN, dl, - NodeTys, &Ops[0], Ops.size()); + return DAG.getNode(X86ISD::TC_RETURN, dl, NodeTys, &Ops[0], Ops.size()); } Chain = DAG.getNode(X86ISD::CALL, dl, NodeTys, &Ops[0], Ops.size()); @@ -2632,7 +2699,6 @@ X86TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI, Ins, dl, DAG, InVals); } - //===----------------------------------------------------------------------===// // Fast Calling Convention (tail call) implementation //===----------------------------------------------------------------------===// @@ -2754,7 +2820,7 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, const SmallVectorImpl<ISD::OutputArg> &Outs, const SmallVectorImpl<SDValue> &OutVals, const SmallVectorImpl<ISD::InputArg> &Ins, - SelectionDAG& DAG) const { + SelectionDAG &DAG) const { if (!IsTailCallConvention(CalleeCC) && CalleeCC != CallingConv::C) return false; @@ -2793,7 +2859,7 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, // An stdcall caller is expected to clean up its arguments; the callee // isn't going to do that. - if (!CCMatch && CallerCC==CallingConv::X86_StdCall) + if (!CCMatch && CallerCC == CallingConv::X86_StdCall) return false; // Do not sibcall optimize vararg calls unless all arguments are passed via @@ -2913,9 +2979,15 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, // callee-saved registers are restored. These happen to be the same // registers used to pass 'inreg' arguments so watch out for those. if (!Subtarget->is64Bit() && - !isa<GlobalAddressSDNode>(Callee) && - !isa<ExternalSymbolSDNode>(Callee)) { + ((!isa<GlobalAddressSDNode>(Callee) && + !isa<ExternalSymbolSDNode>(Callee)) || + getTargetMachine().getRelocationModel() == Reloc::PIC_)) { unsigned NumInRegs = 0; + // In PIC we need an extra register to formulate the address computation + // for the callee. + unsigned MaxInRegs = + (getTargetMachine().getRelocationModel() == Reloc::PIC_) ? 2 : 3; + for (unsigned i = 0, e = ArgLocs.size(); i != e; ++i) { CCValAssign &VA = ArgLocs[i]; if (!VA.isRegLoc()) @@ -2924,7 +2996,7 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, switch (Reg) { default: break; case X86::EAX: case X86::EDX: case X86::ECX: - if (++NumInRegs == 3) + if (++NumInRegs == MaxInRegs) return false; break; } @@ -2941,7 +3013,6 @@ X86TargetLowering::createFastISel(FunctionLoweringInfo &funcInfo, return X86::createFastISel(funcInfo, libInfo); } - //===----------------------------------------------------------------------===// // Other Lowering Hooks //===----------------------------------------------------------------------===// @@ -2961,7 +3032,7 @@ static bool isTargetShuffle(unsigned Opcode) { case X86ISD::PSHUFHW: case X86ISD::PSHUFLW: case X86ISD::SHUFP: - case X86ISD::PALIGN: + case X86ISD::PALIGNR: case X86ISD::MOVLHPS: case X86ISD::MOVLHPD: case X86ISD::MOVHLPS: @@ -3011,7 +3082,7 @@ static SDValue getTargetShuffleNode(unsigned Opc, DebugLoc dl, EVT VT, SelectionDAG &DAG) { switch(Opc) { default: llvm_unreachable("Unknown x86 shuffle node"); - case X86ISD::PALIGN: + case X86ISD::PALIGNR: case X86ISD::SHUFP: case X86ISD::VPERM2X128: return DAG.getNode(Opc, dl, VT, V1, V2, @@ -3052,7 +3123,6 @@ SDValue X86TargetLowering::getReturnAddressFrameIndex(SelectionDAG &DAG) const { return DAG.getFrameIndex(ReturnAddrIndex, getPointerTy()); } - bool X86::isOffsetSuitableForCodeModel(int64_t Offset, CodeModel::Model M, bool hasSymbolicDisplacement) { // Offset should fit into 32 bit immediate field. @@ -3103,6 +3173,8 @@ bool X86::isCalleePop(CallingConv::ID CallingConv, return TailCallOpt; case CallingConv::GHC: return TailCallOpt; + case CallingConv::HiPE: + return TailCallOpt; } } @@ -3233,9 +3305,7 @@ static bool isUndefOrInRange(int Val, int Low, int Hi) { /// isUndefOrEqual - Val is either less than zero (undef) or equal to the /// specified value. static bool isUndefOrEqual(int Val, int CmpVal) { - if (Val < 0 || Val == CmpVal) - return true; - return false; + return (Val < 0 || Val == CmpVal); } /// isSequentialOrUndefInRange - Return true if every element in Mask, beginning @@ -3262,8 +3332,8 @@ static bool isPSHUFDMask(ArrayRef<int> Mask, EVT VT) { /// isPSHUFHWMask - Return true if the node specifies a shuffle of elements that /// is suitable for input to PSHUFHW. -static bool isPSHUFHWMask(ArrayRef<int> Mask, EVT VT, bool HasAVX2) { - if (VT != MVT::v8i16 && (!HasAVX2 || VT != MVT::v16i16)) +static bool isPSHUFHWMask(ArrayRef<int> Mask, EVT VT, bool HasInt256) { + if (VT != MVT::v8i16 && (!HasInt256 || VT != MVT::v16i16)) return false; // Lower quadword copied in order or undef. @@ -3291,8 +3361,8 @@ static bool isPSHUFHWMask(ArrayRef<int> Mask, EVT VT, bool HasAVX2) { /// isPSHUFLWMask - Return true if the node specifies a shuffle of elements that /// is suitable for input to PSHUFLW. -static bool isPSHUFLWMask(ArrayRef<int> Mask, EVT VT, bool HasAVX2) { - if (VT != MVT::v8i16 && (!HasAVX2 || VT != MVT::v16i16)) +static bool isPSHUFLWMask(ArrayRef<int> Mask, EVT VT, bool HasInt256) { + if (VT != MVT::v8i16 && (!HasInt256 || VT != MVT::v16i16)) return false; // Upper quadword copied in order. @@ -3322,8 +3392,8 @@ static bool isPSHUFLWMask(ArrayRef<int> Mask, EVT VT, bool HasAVX2) { /// is suitable for input to PALIGNR. static bool isPALIGNRMask(ArrayRef<int> Mask, EVT VT, const X86Subtarget *Subtarget) { - if ((VT.getSizeInBits() == 128 && !Subtarget->hasSSSE3()) || - (VT.getSizeInBits() == 256 && !Subtarget->hasAVX2())) + if ((VT.is128BitVector() && !Subtarget->hasSSSE3()) || + (VT.is256BitVector() && !Subtarget->hasInt256())) return false; unsigned NumElts = VT.getVectorNumElements(); @@ -3410,9 +3480,9 @@ static void CommuteVectorShuffleMask(SmallVectorImpl<int> &Mask, /// specifies a shuffle of elements that is suitable for input to 128/256-bit /// SHUFPS and SHUFPD. If Commuted is true, then it checks for sources to be /// reverse of what x86 shuffles want. -static bool isSHUFPMask(ArrayRef<int> Mask, EVT VT, bool HasAVX, +static bool isSHUFPMask(ArrayRef<int> Mask, EVT VT, bool HasFp256, bool Commuted = false) { - if (!HasAVX && VT.getSizeInBits() == 256) + if (!HasFp256 && VT.is256BitVector()) return false; unsigned NumElems = VT.getVectorNumElements(); @@ -3547,7 +3617,7 @@ static bool isMOVLHPSMask(ArrayRef<int> Mask, EVT VT) { static SDValue Compact8x32ShuffleNode(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) { - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); DebugLoc dl = SVOp->getDebugLoc(); if (VT != MVT::v8i32 && VT != MVT::v8f32) @@ -3591,14 +3661,14 @@ SDValue Compact8x32ShuffleNode(ShuffleVectorSDNode *SVOp, /// isUNPCKLMask - Return true if the specified VECTOR_SHUFFLE operand /// specifies a shuffle of elements that is suitable for input to UNPCKL. static bool isUNPCKLMask(ArrayRef<int> Mask, EVT VT, - bool HasAVX2, bool V2IsSplat = false) { + bool HasInt256, bool V2IsSplat = false) { unsigned NumElts = VT.getVectorNumElements(); assert((VT.is128BitVector() || VT.is256BitVector()) && "Unsupported vector type for unpckh"); - if (VT.getSizeInBits() == 256 && NumElts != 4 && NumElts != 8 && - (!HasAVX2 || (NumElts != 16 && NumElts != 32))) + if (VT.is256BitVector() && NumElts != 4 && NumElts != 8 && + (!HasInt256 || (NumElts != 16 && NumElts != 32))) return false; // Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate @@ -3630,14 +3700,14 @@ static bool isUNPCKLMask(ArrayRef<int> Mask, EVT VT, /// isUNPCKHMask - Return true if the specified VECTOR_SHUFFLE operand /// specifies a shuffle of elements that is suitable for input to UNPCKH. static bool isUNPCKHMask(ArrayRef<int> Mask, EVT VT, - bool HasAVX2, bool V2IsSplat = false) { + bool HasInt256, bool V2IsSplat = false) { unsigned NumElts = VT.getVectorNumElements(); assert((VT.is128BitVector() || VT.is256BitVector()) && "Unsupported vector type for unpckh"); - if (VT.getSizeInBits() == 256 && NumElts != 4 && NumElts != 8 && - (!HasAVX2 || (NumElts != 16 && NumElts != 32))) + if (VT.is256BitVector() && NumElts != 4 && NumElts != 8 && + (!HasInt256 || (NumElts != 16 && NumElts != 32))) return false; // Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate @@ -3667,22 +3737,22 @@ static bool isUNPCKHMask(ArrayRef<int> Mask, EVT VT, /// isUNPCKL_v_undef_Mask - Special case of isUNPCKLMask for canonical form /// of vector_shuffle v, v, <0, 4, 1, 5>, i.e. vector_shuffle v, undef, /// <0, 0, 1, 1> -static bool isUNPCKL_v_undef_Mask(ArrayRef<int> Mask, EVT VT, - bool HasAVX2) { +static bool isUNPCKL_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasInt256) { unsigned NumElts = VT.getVectorNumElements(); + bool Is256BitVec = VT.is256BitVector(); assert((VT.is128BitVector() || VT.is256BitVector()) && "Unsupported vector type for unpckh"); - if (VT.getSizeInBits() == 256 && NumElts != 4 && NumElts != 8 && - (!HasAVX2 || (NumElts != 16 && NumElts != 32))) + if (Is256BitVec && NumElts != 4 && NumElts != 8 && + (!HasInt256 || (NumElts != 16 && NumElts != 32))) return false; // For 256-bit i64/f64, use MOVDDUPY instead, so reject the matching pattern // FIXME: Need a better way to get rid of this, there's no latency difference // between UNPCKLPD and MOVDDUP, the later should always be checked first and // the former later. We should also remove the "_undef" special mask. - if (NumElts == 4 && VT.getSizeInBits() == 256) + if (NumElts == 4 && Is256BitVec) return false; // Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate @@ -3710,14 +3780,14 @@ static bool isUNPCKL_v_undef_Mask(ArrayRef<int> Mask, EVT VT, /// isUNPCKH_v_undef_Mask - Special case of isUNPCKHMask for canonical form /// of vector_shuffle v, v, <2, 6, 3, 7>, i.e. vector_shuffle v, undef, /// <2, 2, 3, 3> -static bool isUNPCKH_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasAVX2) { +static bool isUNPCKH_v_undef_Mask(ArrayRef<int> Mask, EVT VT, bool HasInt256) { unsigned NumElts = VT.getVectorNumElements(); assert((VT.is128BitVector() || VT.is256BitVector()) && "Unsupported vector type for unpckh"); - if (VT.getSizeInBits() == 256 && NumElts != 4 && NumElts != 8 && - (!HasAVX2 || (NumElts != 16 && NumElts != 32))) + if (VT.is256BitVector() && NumElts != 4 && NumElts != 8 && + (!HasInt256 || (NumElts != 16 && NumElts != 32))) return false; // Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate @@ -3766,8 +3836,8 @@ static bool isMOVLMask(ArrayRef<int> Mask, EVT VT) { /// vector_shuffle <4, 5, 6, 7, 12, 13, 14, 15> /// The first half comes from the second half of V1 and the second half from the /// the second half of V2. -static bool isVPERM2X128Mask(ArrayRef<int> Mask, EVT VT, bool HasAVX) { - if (!HasAVX || !VT.is256BitVector()) +static bool isVPERM2X128Mask(ArrayRef<int> Mask, EVT VT, bool HasFp256) { + if (!HasFp256 || !VT.is256BitVector()) return false; // The shuffle result is divided into half A and half B. In total the two @@ -3798,7 +3868,7 @@ static bool isVPERM2X128Mask(ArrayRef<int> Mask, EVT VT, bool HasAVX) { /// getShuffleVPERM2X128Immediate - Return the appropriate immediate to shuffle /// the specified VECTOR_MASK mask with VPERM2F128/VPERM2I128 instructions. static unsigned getShuffleVPERM2X128Immediate(ShuffleVectorSDNode *SVOp) { - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); unsigned HalfSize = VT.getVectorNumElements()/2; @@ -3826,13 +3896,13 @@ static unsigned getShuffleVPERM2X128Immediate(ShuffleVectorSDNode *SVOp) { /// to the same elements of the low, but to the higher half of the source. /// In VPERMILPD the two lanes could be shuffled independently of each other /// with the same restriction that lanes can't be crossed. Also handles PSHUFDY. -static bool isVPERMILPMask(ArrayRef<int> Mask, EVT VT, bool HasAVX) { - if (!HasAVX) +static bool isVPERMILPMask(ArrayRef<int> Mask, EVT VT, bool HasFp256) { + if (!HasFp256) return false; unsigned NumElts = VT.getVectorNumElements(); // Only match 256-bit with 32/64-bit types - if (VT.getSizeInBits() != 256 || (NumElts != 4 && NumElts != 8)) + if (!VT.is256BitVector() || (NumElts != 4 && NumElts != 8)) return false; unsigned NumLanes = VT.getSizeInBits()/128; @@ -3888,8 +3958,8 @@ static bool isMOVSHDUPMask(ArrayRef<int> Mask, EVT VT, unsigned NumElems = VT.getVectorNumElements(); - if ((VT.getSizeInBits() == 128 && NumElems != 4) || - (VT.getSizeInBits() == 256 && NumElems != 8)) + if ((VT.is128BitVector() && NumElems != 4) || + (VT.is256BitVector() && NumElems != 8)) return false; // "i+1" is the value the indexed mask element must have @@ -3911,8 +3981,8 @@ static bool isMOVSLDUPMask(ArrayRef<int> Mask, EVT VT, unsigned NumElems = VT.getVectorNumElements(); - if ((VT.getSizeInBits() == 128 && NumElems != 4) || - (VT.getSizeInBits() == 256 && NumElems != 8)) + if ((VT.is128BitVector() && NumElems != 4) || + (VT.is256BitVector() && NumElems != 8)) return false; // "i" is the value the indexed mask element must have @@ -3927,8 +3997,8 @@ static bool isMOVSLDUPMask(ArrayRef<int> Mask, EVT VT, /// isMOVDDUPYMask - Return true if the specified VECTOR_SHUFFLE operand /// specifies a shuffle of elements that is suitable for input to 256-bit /// version of MOVDDUP. -static bool isMOVDDUPYMask(ArrayRef<int> Mask, EVT VT, bool HasAVX) { - if (!HasAVX || !VT.is256BitVector()) +static bool isMOVDDUPYMask(ArrayRef<int> Mask, EVT VT, bool HasFp256) { + if (!HasFp256 || !VT.is256BitVector()) return false; unsigned NumElts = VT.getVectorNumElements(); @@ -3972,9 +4042,8 @@ bool X86::isVEXTRACTF128Index(SDNode *N) { uint64_t Index = cast<ConstantSDNode>(N->getOperand(1).getNode())->getZExtValue(); - unsigned VL = N->getValueType(0).getVectorNumElements(); - unsigned VBits = N->getValueType(0).getSizeInBits(); - unsigned ElSize = VBits / VL; + MVT VT = N->getValueType(0).getSimpleVT(); + unsigned ElSize = VT.getVectorElementType().getSizeInBits(); bool Result = (Index * ElSize) % 128 == 0; return Result; @@ -3991,9 +4060,8 @@ bool X86::isVINSERTF128Index(SDNode *N) { uint64_t Index = cast<ConstantSDNode>(N->getOperand(2).getNode())->getZExtValue(); - unsigned VL = N->getValueType(0).getVectorNumElements(); - unsigned VBits = N->getValueType(0).getSizeInBits(); - unsigned ElSize = VBits / VL; + MVT VT = N->getValueType(0).getSimpleVT(); + unsigned ElSize = VT.getVectorElementType().getSizeInBits(); bool Result = (Index * ElSize) % 128 == 0; return Result; @@ -4003,7 +4071,7 @@ bool X86::isVINSERTF128Index(SDNode *N) { /// the specified VECTOR_SHUFFLE mask with PSHUF* and SHUFP* instructions. /// Handles 128-bit and 256-bit. static unsigned getShuffleSHUFImmediate(ShuffleVectorSDNode *N) { - EVT VT = N->getValueType(0); + MVT VT = N->getValueType(0).getSimpleVT(); assert((VT.is128BitVector() || VT.is256BitVector()) && "Unsupported vector type for PSHUF/SHUFP"); @@ -4033,7 +4101,7 @@ static unsigned getShuffleSHUFImmediate(ShuffleVectorSDNode *N) { /// getShufflePSHUFHWImmediate - Return the appropriate immediate to shuffle /// the specified VECTOR_SHUFFLE mask with the PSHUFHW instruction. static unsigned getShufflePSHUFHWImmediate(ShuffleVectorSDNode *N) { - EVT VT = N->getValueType(0); + MVT VT = N->getValueType(0).getSimpleVT(); assert((VT == MVT::v8i16 || VT == MVT::v16i16) && "Unsupported vector type for PSHUFHW"); @@ -4057,7 +4125,7 @@ static unsigned getShufflePSHUFHWImmediate(ShuffleVectorSDNode *N) { /// getShufflePSHUFLWImmediate - Return the appropriate immediate to shuffle /// the specified VECTOR_SHUFFLE mask with the PSHUFLW instruction. static unsigned getShufflePSHUFLWImmediate(ShuffleVectorSDNode *N) { - EVT VT = N->getValueType(0); + MVT VT = N->getValueType(0).getSimpleVT(); assert((VT == MVT::v8i16 || VT == MVT::v16i16) && "Unsupported vector type for PSHUFHW"); @@ -4081,7 +4149,7 @@ static unsigned getShufflePSHUFLWImmediate(ShuffleVectorSDNode *N) { /// getShufflePALIGNRImmediate - Return the appropriate immediate to shuffle /// the specified VECTOR_SHUFFLE mask with the PALIGNR instruction. static unsigned getShufflePALIGNRImmediate(ShuffleVectorSDNode *SVOp) { - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); unsigned EltSize = VT.getVectorElementType().getSizeInBits() >> 3; unsigned NumElts = VT.getVectorNumElements(); @@ -4112,8 +4180,8 @@ unsigned X86::getExtractVEXTRACTF128Immediate(SDNode *N) { uint64_t Index = cast<ConstantSDNode>(N->getOperand(1).getNode())->getZExtValue(); - EVT VecVT = N->getOperand(0).getValueType(); - EVT ElVT = VecVT.getVectorElementType(); + MVT VecVT = N->getOperand(0).getValueType().getSimpleVT(); + MVT ElVT = VecVT.getVectorElementType(); unsigned NumElemsPerChunk = 128 / ElVT.getSizeInBits(); return Index / NumElemsPerChunk; @@ -4129,8 +4197,8 @@ unsigned X86::getInsertVINSERTF128Immediate(SDNode *N) { uint64_t Index = cast<ConstantSDNode>(N->getOperand(2).getNode())->getZExtValue(); - EVT VecVT = N->getValueType(0); - EVT ElVT = VecVT.getVectorElementType(); + MVT VecVT = N->getValueType(0).getSimpleVT(); + MVT ElVT = VecVT.getVectorElementType(); unsigned NumElemsPerChunk = 128 / ElVT.getSizeInBits(); return Index / NumElemsPerChunk; @@ -4140,7 +4208,7 @@ unsigned X86::getInsertVINSERTF128Immediate(SDNode *N) { /// the specified VECTOR_SHUFFLE mask with VPERMQ and VPERMPD instructions. /// Handles 256-bit. static unsigned getShuffleCLImmediate(ShuffleVectorSDNode *N) { - EVT VT = N->getValueType(0); + MVT VT = N->getValueType(0).getSimpleVT(); unsigned NumElts = VT.getVectorNumElements(); @@ -4160,17 +4228,18 @@ static unsigned getShuffleCLImmediate(ShuffleVectorSDNode *N) { /// isZeroNode - Returns true if Elt is a constant zero or a floating point /// constant +0.0. bool X86::isZeroNode(SDValue Elt) { - return ((isa<ConstantSDNode>(Elt) && - cast<ConstantSDNode>(Elt)->isNullValue()) || - (isa<ConstantFPSDNode>(Elt) && - cast<ConstantFPSDNode>(Elt)->getValueAPF().isPosZero())); + if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Elt)) + return CN->isNullValue(); + if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(Elt)) + return CFP->getValueAPF().isPosZero(); + return false; } /// CommuteVectorShuffle - Swap vector_shuffle operands as well as values in /// their permute mask. static SDValue CommuteVectorShuffle(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) { - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); unsigned NumElems = VT.getVectorNumElements(); SmallVector<int, 8> MaskVec; @@ -4319,12 +4388,11 @@ static bool isZeroShuffle(ShuffleVectorSDNode *N) { static SDValue getZeroVector(EVT VT, const X86Subtarget *Subtarget, SelectionDAG &DAG, DebugLoc dl) { assert(VT.isVector() && "Expected a vector type"); - unsigned Size = VT.getSizeInBits(); // Always build SSE zero vectors as <4 x i32> bitcasted // to their dest type. This ensures they get CSE'd. SDValue Vec; - if (Size == 128) { // SSE + if (VT.is128BitVector()) { // SSE if (Subtarget->hasSSE2()) { // SSE2 SDValue Cst = DAG.getTargetConstant(0, MVT::i32); Vec = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32, Cst, Cst, Cst, Cst); @@ -4332,8 +4400,8 @@ static SDValue getZeroVector(EVT VT, const X86Subtarget *Subtarget, SDValue Cst = DAG.getTargetConstantFP(+0.0, MVT::f32); Vec = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v4f32, Cst, Cst, Cst, Cst); } - } else if (Size == 256) { // AVX - if (Subtarget->hasAVX2()) { // AVX2 + } else if (VT.is256BitVector()) { // AVX + if (Subtarget->hasInt256()) { // AVX2 SDValue Cst = DAG.getTargetConstant(0, MVT::i32); SDValue Ops[] = { Cst, Cst, Cst, Cst, Cst, Cst, Cst, Cst }; Vec = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v8i32, Ops, 8); @@ -4354,22 +4422,21 @@ static SDValue getZeroVector(EVT VT, const X86Subtarget *Subtarget, /// Always build ones vectors as <4 x i32> or <8 x i32>. For 256-bit types with /// no AVX2 supprt, use two <4 x i32> inserted in a <8 x i32> appropriately. /// Then bitcast to their original type, ensuring they get CSE'd. -static SDValue getOnesVector(EVT VT, bool HasAVX2, SelectionDAG &DAG, +static SDValue getOnesVector(MVT VT, bool HasInt256, SelectionDAG &DAG, DebugLoc dl) { assert(VT.isVector() && "Expected a vector type"); - unsigned Size = VT.getSizeInBits(); SDValue Cst = DAG.getTargetConstant(~0U, MVT::i32); SDValue Vec; - if (Size == 256) { - if (HasAVX2) { // AVX2 + if (VT.is256BitVector()) { + if (HasInt256) { // AVX2 SDValue Ops[] = { Cst, Cst, Cst, Cst, Cst, Cst, Cst, Cst }; Vec = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v8i32, Ops, 8); } else { // AVX Vec = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32, Cst, Cst, Cst, Cst); Vec = Concat128BitVectors(Vec, Vec, MVT::v8i32, 8, DAG, dl); } - } else if (Size == 128) { + } else if (VT.is128BitVector()) { Vec = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v4i32, Cst, Cst, Cst, Cst); } else llvm_unreachable("Unexpected vector type"); @@ -4448,14 +4515,13 @@ static SDValue PromoteSplati8i16(SDValue V, SelectionDAG &DAG, int &EltNo) { static SDValue getLegalSplat(SelectionDAG &DAG, SDValue V, int EltNo) { EVT VT = V.getValueType(); DebugLoc dl = V.getDebugLoc(); - unsigned Size = VT.getSizeInBits(); - if (Size == 128) { + if (VT.is128BitVector()) { V = DAG.getNode(ISD::BITCAST, dl, MVT::v4f32, V); int SplatMask[4] = { EltNo, EltNo, EltNo, EltNo }; V = DAG.getVectorShuffle(MVT::v4f32, dl, V, DAG.getUNDEF(MVT::v4f32), &SplatMask[0]); - } else if (Size == 256) { + } else if (VT.is256BitVector()) { // To use VPERMILPS to splat scalars, the second half of indicies must // refer to the higher part, which is a duplication of the lower one, // because VPERMILPS can only handle in-lane permutations. @@ -4479,14 +4545,14 @@ static SDValue PromoteSplat(ShuffleVectorSDNode *SV, SelectionDAG &DAG) { int EltNo = SV->getSplatIndex(); int NumElems = SrcVT.getVectorNumElements(); - unsigned Size = SrcVT.getSizeInBits(); + bool Is256BitVec = SrcVT.is256BitVector(); - assert(((Size == 128 && NumElems > 4) || Size == 256) && - "Unknown how to promote splat for type"); + assert(((SrcVT.is128BitVector() && NumElems > 4) || Is256BitVec) && + "Unknown how to promote splat for type"); // Extract the 128-bit part containing the splat element and update // the splat element index when it refers to the higher register. - if (Size == 256) { + if (Is256BitVec) { V1 = Extract128BitVector(V1, EltNo, DAG, dl); if (EltNo >= NumElems/2) EltNo -= NumElems/2; @@ -4503,7 +4569,7 @@ static SDValue PromoteSplat(ShuffleVectorSDNode *SV, SelectionDAG &DAG) { // Recreate the 256-bit vector and place the same 128-bit vector // into the low and high part. This is necessary because we want // to use VPERM* to shuffle the vectors - if (Size == 256) { + if (Is256BitVec) { V1 = DAG.getNode(ISD::CONCAT_VECTORS, dl, SrcVT, V1, V1); } @@ -4555,6 +4621,10 @@ static bool getTargetShuffleMask(SDNode *N, MVT VT, case X86ISD::MOVLHPS: DecodeMOVLHPSMask(NumElems, Mask); break; + case X86ISD::PALIGNR: + ImmN = N->getOperand(N->getNumOperands()-1); + DecodePALIGNRMask(VT, cast<ConstantSDNode>(ImmN)->getZExtValue(), Mask); + break; case X86ISD::PSHUFD: case X86ISD::VPERMILP: ImmN = N->getOperand(N->getNumOperands()-1); @@ -4598,7 +4668,6 @@ static bool getTargetShuffleMask(SDNode *N, MVT VT, case X86ISD::MOVLPS: case X86ISD::MOVSHDUP: case X86ISD::MOVSLDUP: - case X86ISD::PALIGN: // Not yet implemented return false; default: llvm_unreachable("unknown target shuffle node"); @@ -4893,7 +4962,7 @@ static SDValue getVShift(bool isLeft, EVT VT, SDValue SrcOp, return DAG.getNode(ISD::BITCAST, dl, VT, DAG.getNode(Opc, dl, ShVT, SrcOp, DAG.getConstant(NumBits, - TLI.getShiftAmountTy(SrcOp.getValueType())))); + TLI.getScalarShiftAmountTy(SrcOp.getValueType())))); } SDValue @@ -5063,10 +5132,10 @@ static SDValue EltsFromConsecutiveLoads(EVT VT, SmallVectorImpl<SDValue> &Elts, /// or SDValue() otherwise. SDValue X86TargetLowering::LowerVectorBroadcast(SDValue Op, SelectionDAG &DAG) const { - if (!Subtarget->hasAVX()) + if (!Subtarget->hasFp256()) return SDValue(); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); DebugLoc dl = Op.getDebugLoc(); assert((VT.is128BitVector() || VT.is256BitVector()) && @@ -5109,7 +5178,7 @@ X86TargetLowering::LowerVectorBroadcast(SDValue Op, SelectionDAG &DAG) const { if (Sc.getOpcode() != ISD::SCALAR_TO_VECTOR && Sc.getOpcode() != ISD::BUILD_VECTOR) { - if (!Subtarget->hasAVX2()) + if (!Subtarget->hasInt256()) return SDValue(); // Use the register form of the broadcast instruction available on AVX2. @@ -5136,7 +5205,7 @@ X86TargetLowering::LowerVectorBroadcast(SDValue Op, SelectionDAG &DAG) const { // Handle the broadcasting a single constant scalar from the constant pool // into a vector. On Sandybridge it is still better to load a constant vector // from the constant pool and not to broadcast it from a scalar. - if (ConstSplatVal && Subtarget->hasAVX2()) { + if (ConstSplatVal && Subtarget->hasInt256()) { EVT CVT = Ld.getValueType(); assert(!CVT.isVector() && "Must not broadcast a vector type"); unsigned ScalarSize = CVT.getSizeInBits(); @@ -5164,7 +5233,7 @@ X86TargetLowering::LowerVectorBroadcast(SDValue Op, SelectionDAG &DAG) const { unsigned ScalarSize = Ld.getValueType().getSizeInBits(); // Handle AVX2 in-register broadcasts. - if (!IsLoad && Subtarget->hasAVX2() && + if (!IsLoad && Subtarget->hasInt256() && (ScalarSize == 32 || (Is256 && ScalarSize == 64))) return DAG.getNode(X86ISD::VBROADCAST, dl, VT, Ld); @@ -5177,7 +5246,7 @@ X86TargetLowering::LowerVectorBroadcast(SDValue Op, SelectionDAG &DAG) const { // The integer check is needed for the 64-bit into 128-bit so it doesn't match // double since there is no vbroadcastsd xmm - if (Subtarget->hasAVX2() && Ld.getValueType().isInteger()) { + if (Subtarget->hasInt256() && Ld.getValueType().isInteger()) { if (ScalarSize == 8 || ScalarSize == 16 || ScalarSize == 64) return DAG.getNode(X86ISD::VBROADCAST, dl, VT, Ld); } @@ -5264,8 +5333,8 @@ SDValue X86TargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const { DebugLoc dl = Op.getDebugLoc(); - EVT VT = Op.getValueType(); - EVT ExtVT = VT.getVectorElementType(); + MVT VT = Op.getValueType().getSimpleVT(); + MVT ExtVT = VT.getVectorElementType(); unsigned NumElems = Op.getNumOperands(); // Vectors containing all zeros can be matched by pxor and xorps later @@ -5281,11 +5350,11 @@ X86TargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const { // Vectors containing all ones can be matched by pcmpeqd on 128-bit width // vectors or broken into v4i32 operations on 256-bit vectors. AVX2 can use // vpcmpeqd on 256-bit vectors. - if (ISD::isBuildVectorAllOnes(Op.getNode())) { - if (VT == MVT::v4i32 || (VT == MVT::v8i32 && Subtarget->hasAVX2())) + if (Subtarget->hasSSE2() && ISD::isBuildVectorAllOnes(Op.getNode())) { + if (VT == MVT::v4i32 || (VT == MVT::v8i32 && Subtarget->hasInt256())) return Op; - return getOnesVector(VT, Subtarget->hasAVX2(), DAG, dl); + return getOnesVector(VT, Subtarget->hasInt256(), DAG, dl); } SDValue Broadcast = LowerVectorBroadcast(Op, DAG); @@ -5596,7 +5665,7 @@ X86TargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const { // to create 256-bit vectors from two other 128-bit ones. static SDValue LowerAVXCONCAT_VECTORS(SDValue Op, SelectionDAG &DAG) { DebugLoc dl = Op.getDebugLoc(); - EVT ResVT = Op.getValueType(); + MVT ResVT = Op.getValueType().getSimpleVT(); assert(ResVT.is256BitVector() && "Value type must be 256-bit wide"); @@ -5623,63 +5692,51 @@ LowerVECTOR_SHUFFLEtoBlend(ShuffleVectorSDNode *SVOp, SDValue V2 = SVOp->getOperand(1); DebugLoc dl = SVOp->getDebugLoc(); MVT VT = SVOp->getValueType(0).getSimpleVT(); + MVT EltVT = VT.getVectorElementType(); unsigned NumElems = VT.getVectorNumElements(); - if (!Subtarget->hasSSE41()) + if (!Subtarget->hasSSE41() || EltVT == MVT::i8) + return SDValue(); + if (!Subtarget->hasInt256() && VT == MVT::v16i16) return SDValue(); - unsigned ISDNo = 0; - MVT OpTy; - - switch (VT.SimpleTy) { - default: return SDValue(); - case MVT::v8i16: - ISDNo = X86ISD::BLENDPW; - OpTy = MVT::v8i16; - break; - case MVT::v4i32: - case MVT::v4f32: - ISDNo = X86ISD::BLENDPS; - OpTy = MVT::v4f32; - break; - case MVT::v2i64: - case MVT::v2f64: - ISDNo = X86ISD::BLENDPD; - OpTy = MVT::v2f64; - break; - case MVT::v8i32: - case MVT::v8f32: - if (!Subtarget->hasAVX()) - return SDValue(); - ISDNo = X86ISD::BLENDPS; - OpTy = MVT::v8f32; - break; - case MVT::v4i64: - case MVT::v4f64: - if (!Subtarget->hasAVX()) - return SDValue(); - ISDNo = X86ISD::BLENDPD; - OpTy = MVT::v4f64; - break; - } - assert(ISDNo && "Invalid Op Number"); + // Check the mask for BLEND and build the value. + unsigned MaskValue = 0; + // There are 2 lanes if (NumElems > 8), and 1 lane otherwise. + unsigned NumLanes = (NumElems-1)/8 + 1; + unsigned NumElemsInLane = NumElems / NumLanes; - unsigned MaskVals = 0; + // Blend for v16i16 should be symetric for the both lanes. + for (unsigned i = 0; i < NumElemsInLane; ++i) { - for (unsigned i = 0; i != NumElems; ++i) { + int SndLaneEltIdx = (NumLanes == 2) ? + SVOp->getMaskElt(i + NumElemsInLane) : -1; int EltIdx = SVOp->getMaskElt(i); - if (EltIdx == (int)i || EltIdx < 0) - MaskVals |= (1<<i); - else if (EltIdx == (int)(i + NumElems)) - continue; // Bit is set to zero; + + if ((EltIdx < 0 || EltIdx == (int)i) && + (SndLaneEltIdx < 0 || SndLaneEltIdx == (int)(i + NumElemsInLane))) + continue; + + if (((unsigned)EltIdx == (i + NumElems)) && + (SndLaneEltIdx < 0 || + (unsigned)SndLaneEltIdx == i + NumElems + NumElemsInLane)) + MaskValue |= (1<<i); else return SDValue(); } - V1 = DAG.getNode(ISD::BITCAST, dl, OpTy, V1); - V2 = DAG.getNode(ISD::BITCAST, dl, OpTy, V2); - SDValue Ret = DAG.getNode(ISDNo, dl, OpTy, V1, V2, - DAG.getConstant(MaskVals, MVT::i32)); + // Convert i32 vectors to floating point if it is not AVX2. + // AVX2 introduced VPBLENDD instruction for 128 and 256-bit vectors. + MVT BlendVT = VT; + if (EltVT == MVT::i64 || (EltVT == MVT::i32 && !Subtarget->hasInt256())) { + BlendVT = MVT::getVectorVT(MVT::getFloatingPointVT(EltVT.getSizeInBits()), + NumElems); + V1 = DAG.getNode(ISD::BITCAST, dl, VT, V1); + V2 = DAG.getNode(ISD::BITCAST, dl, VT, V2); + } + + SDValue Ret = DAG.getNode(X86ISD::BLENDI, dl, BlendVT, V1, V2, + DAG.getConstant(MaskValue, MVT::i32)); return DAG.getNode(ISD::BITCAST, dl, VT, Ret); } @@ -5814,6 +5871,11 @@ LowerVECTOR_SHUFFLEv8i16(SDValue Op, const X86Subtarget *Subtarget, } } + // Promote splats to a larger type which usually leads to more efficient code. + // FIXME: Is this true if pshufb is available? + if (SVOp->isSplat()) + return PromoteSplat(SVOp, DAG); + // If we have SSSE3, and all words of the result are from 1 input vector, // case 2 is generated, otherwise case 3 is generated. If no SSSE3 // is present, fall back to case 4. @@ -5829,7 +5891,7 @@ LowerVECTOR_SHUFFLEv8i16(SDValue Op, const X86Subtarget *Subtarget, int EltIdx = MaskVals[i] * 2; int Idx0 = (TwoInputs && (EltIdx >= 16)) ? 0x80 : EltIdx; int Idx1 = (TwoInputs && (EltIdx >= 16)) ? 0x80 : EltIdx+1; - pshufbMask.push_back(DAG.getConstant(Idx0, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(Idx0, MVT::i8)); pshufbMask.push_back(DAG.getConstant(Idx1, MVT::i8)); } V1 = DAG.getNode(ISD::BITCAST, dl, MVT::v16i8, V1); @@ -5947,6 +6009,11 @@ SDValue LowerVECTOR_SHUFFLEv16i8(ShuffleVectorSDNode *SVOp, DebugLoc dl = SVOp->getDebugLoc(); ArrayRef<int> MaskVals = SVOp->getMask(); + // Promote splats to a larger type which usually leads to more efficient code. + // FIXME: Is this true if pshufb is available? + if (SVOp->isSplat()) + return PromoteSplat(SVOp, DAG); + // If we have SSSE3, case 1 is generated when all result bytes come from // one of the inputs. Otherwise, case 2 is generated. If no SSSE3 is // present, fall back to case 3. @@ -6065,7 +6132,7 @@ static SDValue LowerVECTOR_SHUFFLEv32i8(ShuffleVectorSDNode *SVOp, const X86Subtarget *Subtarget, SelectionDAG &DAG) { - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); SDValue V1 = SVOp->getOperand(0); SDValue V2 = SVOp->getOperand(1); DebugLoc dl = SVOp->getDebugLoc(); @@ -6079,7 +6146,7 @@ SDValue LowerVECTOR_SHUFFLEv32i8(ShuffleVectorSDNode *SVOp, // (1) one of input vector is undefined or zeroinitializer. // The mask value 0x80 puts 0 in the corresponding slot of the vector. // And (2) the mask indexes don't cross the 128-bit lane. - if (VT != MVT::v32i8 || !Subtarget->hasAVX2() || + if (VT != MVT::v32i8 || !Subtarget->hasInt256() || (!V2IsUndef && !V2IsAllZero && !V1IsAllZero)) return SDValue(); @@ -6112,8 +6179,9 @@ SDValue LowerVECTOR_SHUFFLEv32i8(ShuffleVectorSDNode *SVOp, /// vector_shuffle X, Y, <2, 3, | 10, 11, | 0, 1, | 14, 15> static SDValue RewriteAsNarrowerShuffle(ShuffleVectorSDNode *SVOp, - SelectionDAG &DAG, DebugLoc dl) { + SelectionDAG &DAG) { MVT VT = SVOp->getValueType(0).getSimpleVT(); + DebugLoc dl = SVOp->getDebugLoc(); unsigned NumElems = VT.getVectorNumElements(); MVT NewVT; unsigned Scale; @@ -6149,7 +6217,7 @@ SDValue RewriteAsNarrowerShuffle(ShuffleVectorSDNode *SVOp, /// getVZextMovL - Return a zero-extending vector move low node. /// -static SDValue getVZextMovL(EVT VT, EVT OpVT, +static SDValue getVZextMovL(MVT VT, EVT OpVT, SDValue SrcOp, SelectionDAG &DAG, const X86Subtarget *Subtarget, DebugLoc dl) { if (VT == MVT::v2f64 || VT == MVT::v4f32) { @@ -6191,14 +6259,14 @@ LowerVECTOR_SHUFFLE_256(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) { if (NewOp.getNode()) return NewOp; - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); unsigned NumElems = VT.getVectorNumElements(); unsigned NumLaneElems = NumElems / 2; DebugLoc dl = SVOp->getDebugLoc(); - MVT EltVT = VT.getVectorElementType().getSimpleVT(); - EVT NVT = MVT::getVectorVT(EltVT, NumLaneElems); + MVT EltVT = VT.getVectorElementType(); + MVT NVT = MVT::getVectorVT(EltVT, NumLaneElems); SDValue Output[2]; SmallVector<int, 16> Mask; @@ -6303,7 +6371,7 @@ LowerVECTOR_SHUFFLE_128v4(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) { SDValue V1 = SVOp->getOperand(0); SDValue V2 = SVOp->getOperand(1); DebugLoc dl = SVOp->getDebugLoc(); - EVT VT = SVOp->getValueType(0); + MVT VT = SVOp->getValueType(0).getSimpleVT(); assert(VT.is128BitVector() && "Unsupported vector size"); @@ -6452,23 +6520,6 @@ static bool MayFoldVectorLoad(SDValue V) { return MayFoldLoad(V); } -// FIXME: the version above should always be used. Since there's -// a bug where several vector shuffles can't be folded because the -// DAG is not updated during lowering and a node claims to have two -// uses while it only has one, use this version, and let isel match -// another instruction if the load really happens to have more than -// one use. Remove this version after this bug get fixed. -// rdar://8434668, PR8156 -static bool RelaxedMayFoldVectorLoad(SDValue V) { - if (V.hasOneUse() && V.getOpcode() == ISD::BITCAST) - V = V.getOperand(0); - if (V.hasOneUse() && V.getOpcode() == ISD::SCALAR_TO_VECTOR) - V = V.getOperand(0); - if (ISD::isNormalLoad(V.getNode())) - return true; - return false; -} - static SDValue getMOVDDup(SDValue &Op, DebugLoc &dl, SDValue V1, SelectionDAG &DAG) { EVT VT = Op.getValueType(); @@ -6574,7 +6625,7 @@ SDValue getMOVLP(SDValue &Op, DebugLoc &dl, SelectionDAG &DAG, bool HasSSE2) { // Reduce a vector shuffle to zext. SDValue -X86TargetLowering::lowerVectorIntExtend(SDValue Op, SelectionDAG &DAG) const { +X86TargetLowering::LowerVectorIntExtend(SDValue Op, SelectionDAG &DAG) const { // PMOVZX is only available from SSE41. if (!Subtarget->hasSSE41()) return SDValue(); @@ -6582,7 +6633,7 @@ X86TargetLowering::lowerVectorIntExtend(SDValue Op, SelectionDAG &DAG) const { EVT VT = Op.getValueType(); // Only AVX2 support 256-bit vector integer extending. - if (!Subtarget->hasAVX2() && VT.is256BitVector()) + if (!Subtarget->hasInt256() && VT.is256BitVector()) return SDValue(); ShuffleVectorSDNode *SVOp = cast<ShuffleVectorSDNode>(Op); @@ -6618,9 +6669,10 @@ X86TargetLowering::lowerVectorIntExtend(SDValue Op, SelectionDAG &DAG) const { return SDValue(); } + LLVMContext *Context = DAG.getContext(); unsigned NBits = VT.getVectorElementType().getSizeInBits() << Shift; - EVT NeVT = EVT::getIntegerVT(*DAG.getContext(), NBits); - EVT NVT = EVT::getVectorVT(*DAG.getContext(), NeVT, NumElems >> Shift); + EVT NeVT = EVT::getIntegerVT(*Context, NBits); + EVT NVT = EVT::getVectorVT(*Context, NeVT, NumElems >> Shift); if (!isTypeLegal(NVT)) return SDValue(); @@ -6639,8 +6691,21 @@ X86TargetLowering::lowerVectorIntExtend(SDValue Op, SelectionDAG &DAG) const { // If it's foldable, i.e. normal load with single use, we will let code // selection to fold it. Otherwise, we will short the conversion sequence. if (CIdx && CIdx->getZExtValue() == 0 && - (!ISD::isNormalLoad(V.getNode()) || !V.hasOneUse())) + (!ISD::isNormalLoad(V.getNode()) || !V.hasOneUse())) { + if (V.getValueSizeInBits() > V1.getValueSizeInBits()) { + // The "ext_vec_elt" node is wider than the result node. + // In this case we should extract subvector from V. + // (bitcast (sclr2vec (ext_vec_elt x))) -> (bitcast (extract_subvector x)). + unsigned Ratio = V.getValueSizeInBits() / V1.getValueSizeInBits(); + EVT FullVT = V.getValueType(); + EVT SubVecVT = EVT::getVectorVT(*Context, + FullVT.getVectorElementType(), + FullVT.getVectorNumElements()/Ratio); + V = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, SubVecVT, V, + DAG.getIntPtrConstant(0)); + } V1 = DAG.getNode(ISD::BITCAST, DL, V1.getValueType(), V); + } } return DAG.getNode(ISD::BITCAST, DL, VT, @@ -6650,7 +6715,7 @@ X86TargetLowering::lowerVectorIntExtend(SDValue Op, SelectionDAG &DAG) const { SDValue X86TargetLowering::NormalizeVectorShuffle(SDValue Op, SelectionDAG &DAG) const { ShuffleVectorSDNode *SVOp = cast<ShuffleVectorSDNode>(Op); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); DebugLoc dl = Op.getDebugLoc(); SDValue V1 = Op.getOperand(0); SDValue V2 = Op.getOperand(1); @@ -6660,25 +6725,14 @@ X86TargetLowering::NormalizeVectorShuffle(SDValue Op, SelectionDAG &DAG) const { // Handle splat operations if (SVOp->isSplat()) { - unsigned NumElem = VT.getVectorNumElements(); - int Size = VT.getSizeInBits(); - // Use vbroadcast whenever the splat comes from a foldable load SDValue Broadcast = LowerVectorBroadcast(Op, DAG); if (Broadcast.getNode()) return Broadcast; - - // Handle splats by matching through known shuffle masks - if ((Size == 128 && NumElem <= 4) || - (Size == 256 && NumElem < 8)) - return SDValue(); - - // All remaning splats are promoted to target supported vector shuffles. - return PromoteSplat(SVOp, DAG); } // Check integer expanding shuffles. - SDValue NewOp = lowerVectorIntExtend(Op, DAG); + SDValue NewOp = LowerVectorIntExtend(Op, DAG); if (NewOp.getNode()) return NewOp; @@ -6686,7 +6740,7 @@ X86TargetLowering::NormalizeVectorShuffle(SDValue Op, SelectionDAG &DAG) const { // do it! if (VT == MVT::v8i16 || VT == MVT::v16i8 || VT == MVT::v16i16 || VT == MVT::v32i8) { - SDValue NewOp = RewriteAsNarrowerShuffle(SVOp, DAG, dl); + SDValue NewOp = RewriteAsNarrowerShuffle(SVOp, DAG); if (NewOp.getNode()) return DAG.getNode(ISD::BITCAST, dl, VT, NewOp); } else if ((VT == MVT::v4i32 || @@ -6694,18 +6748,18 @@ X86TargetLowering::NormalizeVectorShuffle(SDValue Op, SelectionDAG &DAG) const { // FIXME: Figure out a cleaner way to do this. // Try to make use of movq to zero out the top part. if (ISD::isBuildVectorAllZeros(V2.getNode())) { - SDValue NewOp = RewriteAsNarrowerShuffle(SVOp, DAG, dl); + SDValue NewOp = RewriteAsNarrowerShuffle(SVOp, DAG); if (NewOp.getNode()) { - EVT NewVT = NewOp.getValueType(); + MVT NewVT = NewOp.getValueType().getSimpleVT(); if (isCommutedMOVLMask(cast<ShuffleVectorSDNode>(NewOp)->getMask(), NewVT, true, false)) return getVZextMovL(VT, NewVT, NewOp.getOperand(0), DAG, Subtarget, dl); } } else if (ISD::isBuildVectorAllZeros(V1.getNode())) { - SDValue NewOp = RewriteAsNarrowerShuffle(SVOp, DAG, dl); + SDValue NewOp = RewriteAsNarrowerShuffle(SVOp, DAG); if (NewOp.getNode()) { - EVT NewVT = NewOp.getValueType(); + MVT NewVT = NewOp.getValueType().getSimpleVT(); if (isMOVLMask(cast<ShuffleVectorSDNode>(NewOp)->getMask(), NewVT)) return getVZextMovL(VT, NewVT, NewOp.getOperand(1), DAG, Subtarget, dl); @@ -6720,7 +6774,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { ShuffleVectorSDNode *SVOp = cast<ShuffleVectorSDNode>(Op); SDValue V1 = Op.getOperand(0); SDValue V2 = Op.getOperand(1); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); DebugLoc dl = Op.getDebugLoc(); unsigned NumElems = VT.getVectorNumElements(); bool V1IsUndef = V1.getOpcode() == ISD::UNDEF; @@ -6728,11 +6782,11 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { bool V1IsSplat = false; bool V2IsSplat = false; bool HasSSE2 = Subtarget->hasSSE2(); - bool HasAVX = Subtarget->hasAVX(); - bool HasAVX2 = Subtarget->hasAVX2(); + bool HasFp256 = Subtarget->hasFp256(); + bool HasInt256 = Subtarget->hasInt256(); MachineFunction &MF = DAG.getMachineFunction(); - bool OptForSize = MF.getFunction()->getFnAttributes(). - hasAttribute(Attributes::OptimizeForSize); + bool OptForSize = MF.getFunction()->getAttributes(). + hasAttribute(AttributeSet::FunctionIndex, Attribute::OptimizeForSize); assert(VT.getSizeInBits() != 64 && "Can't lower MMX shuffles"); @@ -6766,20 +6820,20 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { // NOTE: isPSHUFDMask can also match both masks below (unpckl_undef and // unpckh_undef). Only use pshufd if speed is more important than size. - if (OptForSize && isUNPCKL_v_undef_Mask(M, VT, HasAVX2)) + if (OptForSize && isUNPCKL_v_undef_Mask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKL, dl, VT, V1, V1, DAG); - if (OptForSize && isUNPCKH_v_undef_Mask(M, VT, HasAVX2)) + if (OptForSize && isUNPCKH_v_undef_Mask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V1, DAG); if (isMOVDDUPMask(M, VT) && Subtarget->hasSSE3() && - V2IsUndef && RelaxedMayFoldVectorLoad(V1)) + V2IsUndef && MayFoldVectorLoad(V1)) return getMOVDDup(Op, dl, V1, DAG); if (isMOVHLPS_v_undef_Mask(M, VT)) return getMOVHighToLow(Op, dl, DAG); // Use to match splats - if (HasSSE2 && isUNPCKHMask(M, VT, HasAVX2) && V2IsUndef && + if (HasSSE2 && isUNPCKHMask(M, VT, HasInt256) && V2IsUndef && (VT == MVT::v2f64 || VT == MVT::v2i64)) return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V1, DAG); @@ -6792,12 +6846,13 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { unsigned TargetMask = getShuffleSHUFImmediate(SVOp); - if (HasAVX && (VT == MVT::v4f32 || VT == MVT::v2f64)) - return getTargetShuffleNode(X86ISD::VPERMILP, dl, VT, V1, TargetMask, DAG); - if (HasSSE2 && (VT == MVT::v4f32 || VT == MVT::v4i32)) return getTargetShuffleNode(X86ISD::PSHUFD, dl, VT, V1, TargetMask, DAG); + if (HasFp256 && (VT == MVT::v4f32 || VT == MVT::v2f64)) + return getTargetShuffleNode(X86ISD::VPERMILP, dl, VT, V1, TargetMask, + DAG); + return getTargetShuffleNode(X86ISD::SHUFP, dl, VT, V1, V1, TargetMask, DAG); } @@ -6810,7 +6865,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { if (isShift && ShVal.hasOneUse()) { // If the shifted value has multiple uses, it may be cheaper to use // v_set0 + movlhps or movhlps, etc. - EVT EltVT = VT.getVectorElementType(); + MVT EltVT = VT.getVectorElementType(); ShAmt *= EltVT.getSizeInBits(); return getVShift(isLeft, VT, ShVal, ShAmt, DAG, *this, dl); } @@ -6828,7 +6883,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { } // FIXME: fold these into legal mask. - if (isMOVLHPSMask(M, VT) && !isUNPCKLMask(M, VT, HasAVX2)) + if (isMOVLHPSMask(M, VT) && !isUNPCKLMask(M, VT, HasInt256)) return getMOVLowToHigh(Op, dl, DAG, HasSSE2); if (isMOVHLPSMask(M, VT)) @@ -6849,7 +6904,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { if (isShift) { // No better options. Use a vshldq / vsrldq. - EVT EltVT = VT.getVectorElementType(); + MVT EltVT = VT.getVectorElementType(); ShAmt *= EltVT.getSizeInBits(); return getVShift(isLeft, VT, ShVal, ShAmt, DAG, *this, dl); } @@ -6878,10 +6933,10 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { return getMOVL(DAG, dl, VT, V2, V1); } - if (isUNPCKLMask(M, VT, HasAVX2)) + if (isUNPCKLMask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKL, dl, VT, V1, V2, DAG); - if (isUNPCKHMask(M, VT, HasAVX2)) + if (isUNPCKHMask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V2, DAG); if (V2IsSplat) { @@ -6890,9 +6945,9 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { // new vector_shuffle with the corrected mask.p SmallVector<int, 8> NewMask(M.begin(), M.end()); NormalizeMask(NewMask, NumElems); - if (isUNPCKLMask(NewMask, VT, HasAVX2, true)) + if (isUNPCKLMask(NewMask, VT, HasInt256, true)) return getTargetShuffleNode(X86ISD::UNPCKL, dl, VT, V1, V2, DAG); - if (isUNPCKHMask(NewMask, VT, HasAVX2, true)) + if (isUNPCKHMask(NewMask, VT, HasInt256, true)) return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V2, DAG); } @@ -6904,15 +6959,15 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { std::swap(V1IsSplat, V2IsSplat); Commuted = false; - if (isUNPCKLMask(M, VT, HasAVX2)) + if (isUNPCKLMask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKL, dl, VT, V1, V2, DAG); - if (isUNPCKHMask(M, VT, HasAVX2)) + if (isUNPCKHMask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V2, DAG); } // Normalize the node to match x86 shuffle ops if needed - if (!V2IsUndef && (isSHUFPMask(M, VT, HasAVX, /* Commuted */ true))) + if (!V2IsUndef && (isSHUFPMask(M, VT, HasFp256, /* Commuted */ true))) return CommuteVectorShuffle(SVOp, DAG); // The checks below are all present in isShuffleMaskLegal, but they are @@ -6920,7 +6975,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { // nodes, and remove one by one until they don't return Op anymore. if (isPALIGNRMask(M, VT, Subtarget)) - return getTargetShuffleNode(X86ISD::PALIGN, dl, VT, V1, V2, + return getTargetShuffleNode(X86ISD::PALIGNR, dl, VT, V1, V2, getShufflePALIGNRImmediate(SVOp), DAG); @@ -6930,23 +6985,23 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { return getTargetShuffleNode(X86ISD::UNPCKL, dl, VT, V1, V1, DAG); } - if (isPSHUFHWMask(M, VT, HasAVX2)) + if (isPSHUFHWMask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::PSHUFHW, dl, VT, V1, getShufflePSHUFHWImmediate(SVOp), DAG); - if (isPSHUFLWMask(M, VT, HasAVX2)) + if (isPSHUFLWMask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::PSHUFLW, dl, VT, V1, getShufflePSHUFLWImmediate(SVOp), DAG); - if (isSHUFPMask(M, VT, HasAVX)) + if (isSHUFPMask(M, VT, HasFp256)) return getTargetShuffleNode(X86ISD::SHUFP, dl, VT, V1, V2, getShuffleSHUFImmediate(SVOp), DAG); - if (isUNPCKL_v_undef_Mask(M, VT, HasAVX2)) + if (isUNPCKL_v_undef_Mask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKL, dl, VT, V1, V1, DAG); - if (isUNPCKH_v_undef_Mask(M, VT, HasAVX2)) + if (isUNPCKH_v_undef_Mask(M, VT, HasInt256)) return getTargetShuffleNode(X86ISD::UNPCKH, dl, VT, V1, V1, DAG); //===--------------------------------------------------------------------===// @@ -6955,12 +7010,12 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { // // Handle VMOVDDUPY permutations - if (V2IsUndef && isMOVDDUPYMask(M, VT, HasAVX)) + if (V2IsUndef && isMOVDDUPYMask(M, VT, HasFp256)) return getTargetShuffleNode(X86ISD::MOVDDUP, dl, VT, V1, DAG); // Handle VPERMILPS/D* permutations - if (isVPERMILPMask(M, VT, HasAVX)) { - if (HasAVX2 && VT == MVT::v8i32) + if (isVPERMILPMask(M, VT, HasFp256)) { + if (HasInt256 && VT == MVT::v8i32) return getTargetShuffleNode(X86ISD::PSHUFD, dl, VT, V1, getShuffleSHUFImmediate(SVOp), DAG); return getTargetShuffleNode(X86ISD::VPERMILP, dl, VT, V1, @@ -6968,7 +7023,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { } // Handle VPERM2F128/VPERM2I128 permutations - if (isVPERM2X128Mask(M, VT, HasAVX)) + if (isVPERM2X128Mask(M, VT, HasFp256)) return getTargetShuffleNode(X86ISD::VPERM2X128, dl, VT, V1, V2, getShuffleVPERM2X128Immediate(SVOp), DAG); @@ -6976,7 +7031,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { if (BlendOp.getNode()) return BlendOp; - if (V2IsUndef && HasAVX2 && (VT == MVT::v8i32 || VT == MVT::v8f32)) { + if (V2IsUndef && HasInt256 && (VT == MVT::v8i32 || VT == MVT::v8f32)) { SmallVector<SDValue, 8> permclMask; for (unsigned i = 0; i != 8; ++i) { permclMask.push_back(DAG.getConstant((M[i]>=0) ? M[i] : 0, MVT::i32)); @@ -6988,11 +7043,10 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { DAG.getNode(ISD::BITCAST, dl, VT, Mask), V1); } - if (V2IsUndef && HasAVX2 && (VT == MVT::v4i64 || VT == MVT::v4f64)) + if (V2IsUndef && HasInt256 && (VT == MVT::v4i64 || VT == MVT::v4f64)) return getTargetShuffleNode(X86ISD::VPERMI, dl, VT, V1, getShuffleCLImmediate(SVOp), DAG); - //===--------------------------------------------------------------------===// // Since no target specific shuffle was selected for this generic one, // lower it into other known shuffles. FIXME: this isn't true yet, but @@ -7030,13 +7084,11 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const { return SDValue(); } -SDValue -X86TargetLowering::LowerEXTRACT_VECTOR_ELT_SSE4(SDValue Op, - SelectionDAG &DAG) const { - EVT VT = Op.getValueType(); +static SDValue LowerEXTRACT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG) { + MVT VT = Op.getValueType().getSimpleVT(); DebugLoc dl = Op.getDebugLoc(); - if (!Op.getOperand(0).getValueType().is128BitVector()) + if (!Op.getOperand(0).getValueType().getSimpleVT().is128BitVector()) return SDValue(); if (VT.getSizeInBits() == 8) { @@ -7094,7 +7146,6 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT_SSE4(SDValue Op, return SDValue(); } - SDValue X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const { @@ -7102,7 +7153,7 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, return SDValue(); SDValue Vec = Op.getOperand(0); - EVT VecVT = Vec.getValueType(); + MVT VecVT = Vec.getValueType().getSimpleVT(); // If this is a 256-bit vector result, first extract the 128-bit vector and // then extract the element from the 128-bit vector. @@ -7129,7 +7180,7 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, return Res; } - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); DebugLoc dl = Op.getDebugLoc(); // TODO: handle v16i8. if (VT.getSizeInBits() == 16) { @@ -7142,7 +7193,7 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, MVT::v4i32, Vec), Op.getOperand(1))); // Transform it so it match pextrw which produces a 32-bit result. - EVT EltVT = MVT::i32; + MVT EltVT = MVT::i32; SDValue Extract = DAG.getNode(X86ISD::PEXTRW, dl, EltVT, Op.getOperand(0), Op.getOperand(1)); SDValue Assert = DAG.getNode(ISD::AssertZext, dl, EltVT, Extract, @@ -7157,7 +7208,7 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, // SHUFPS the element to the lowest double word, then movss. int Mask[4] = { static_cast<int>(Idx), -1, -1, -1 }; - EVT VVT = Op.getOperand(0).getValueType(); + MVT VVT = Op.getOperand(0).getValueType().getSimpleVT(); SDValue Vec = DAG.getVectorShuffle(VVT, dl, Op.getOperand(0), DAG.getUNDEF(VVT), Mask); return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, VT, Vec, @@ -7176,7 +7227,7 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, // Note if the lower 64 bits of the result of the UNPCKHPD is then stored // to a f64mem, the whole operation is folded into a single MOVHPDmr. int Mask[2] = { 1, -1 }; - EVT VVT = Op.getOperand(0).getValueType(); + MVT VVT = Op.getOperand(0).getValueType().getSimpleVT(); SDValue Vec = DAG.getVectorShuffle(VVT, dl, Op.getOperand(0), DAG.getUNDEF(VVT), Mask); return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, VT, Vec, @@ -7186,11 +7237,9 @@ X86TargetLowering::LowerEXTRACT_VECTOR_ELT(SDValue Op, return SDValue(); } -SDValue -X86TargetLowering::LowerINSERT_VECTOR_ELT_SSE4(SDValue Op, - SelectionDAG &DAG) const { - EVT VT = Op.getValueType(); - EVT EltVT = VT.getVectorElementType(); +static SDValue LowerINSERT_VECTOR_ELT_SSE4(SDValue Op, SelectionDAG &DAG) { + MVT VT = Op.getValueType().getSimpleVT(); + MVT EltVT = VT.getVectorElementType(); DebugLoc dl = Op.getDebugLoc(); SDValue N0 = Op.getOperand(0); @@ -7243,8 +7292,8 @@ X86TargetLowering::LowerINSERT_VECTOR_ELT_SSE4(SDValue Op, SDValue X86TargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const { - EVT VT = Op.getValueType(); - EVT EltVT = VT.getVectorElementType(); + MVT VT = Op.getValueType().getSimpleVT(); + MVT EltVT = VT.getVectorElementType(); DebugLoc dl = Op.getDebugLoc(); SDValue N0 = Op.getOperand(0); @@ -7292,7 +7341,7 @@ X86TargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const { static SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) { LLVMContext *Context = DAG.getContext(); DebugLoc dl = Op.getDebugLoc(); - EVT OpVT = Op.getValueType(); + MVT OpVT = Op.getValueType().getSimpleVT(); // If this is a 256-bit vector result, first insert into a 128-bit // vector and then insert into the 256-bit vector. @@ -7323,7 +7372,7 @@ static SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) { // upper bits of a vector. static SDValue LowerEXTRACT_SUBVECTOR(SDValue Op, const X86Subtarget *Subtarget, SelectionDAG &DAG) { - if (Subtarget->hasAVX()) { + if (Subtarget->hasFp256()) { DebugLoc dl = Op.getNode()->getDebugLoc(); SDValue Vec = Op.getNode()->getOperand(0); SDValue Idx = Op.getNode()->getOperand(1); @@ -7343,7 +7392,7 @@ static SDValue LowerEXTRACT_SUBVECTOR(SDValue Op, const X86Subtarget *Subtarget, // the upper bits of a vector. static SDValue LowerINSERT_SUBVECTOR(SDValue Op, const X86Subtarget *Subtarget, SelectionDAG &DAG) { - if (Subtarget->hasAVX()) { + if (Subtarget->hasFp256()) { DebugLoc dl = Op.getNode()->getDebugLoc(); SDValue Vec = Op.getNode()->getOperand(0); SDValue SubVec = Op.getNode()->getOperand(1); @@ -7459,7 +7508,6 @@ X86TargetLowering::LowerExternalSymbol(SDValue Op, SelectionDAG &DAG) const { DebugLoc DL = Op.getDebugLoc(); Result = DAG.getNode(WrapperKind, DL, getPointerTy(), Result); - // With PIC, the address is actually $g + Offset. if (getTargetMachine().getRelocationModel() == Reloc::PIC_ && !Subtarget->is64Bit()) { @@ -7508,8 +7556,7 @@ X86TargetLowering::LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const { SDValue X86TargetLowering::LowerGlobalAddress(const GlobalValue *GV, DebugLoc dl, - int64_t Offset, - SelectionDAG &DAG) const { + int64_t Offset, SelectionDAG &DAG) const { // Create the TargetGlobalAddress node, folding in the constant // offset if it is legal. unsigned char OpFlags = @@ -7729,7 +7776,7 @@ X86TargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const { case TLSModel::LocalExec: return LowerToTLSExecModel(GA, DAG, getPointerTy(), model, Subtarget->is64Bit(), - getTargetMachine().getRelocationModel() == Reloc::PIC_); + getTargetMachine().getRelocationModel() == Reloc::PIC_); } llvm_unreachable("Unknown TLS model."); } @@ -7779,7 +7826,7 @@ X86TargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const { Chain.getValue(1)); } - if (Subtarget->isTargetWindows()) { + if (Subtarget->isTargetWindows() || Subtarget->isTargetMingw()) { // Just use the implicit TLS architecture // Need to generate someting similar to: // mov rdx, qword [gs:abs 58H]; Load pointer to ThreadLocalStorage @@ -7799,18 +7846,19 @@ X86TargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const { SDValue Chain = DAG.getEntryNode(); // Get the Thread Pointer, which is %fs:__tls_array (32-bit) or - // %gs:0x58 (64-bit). + // %gs:0x58 (64-bit). On MinGW, __tls_array is not available, so directly + // use its literal value of 0x2C. Value *Ptr = Constant::getNullValue(Subtarget->is64Bit() ? Type::getInt8PtrTy(*DAG.getContext(), 256) : Type::getInt32PtrTy(*DAG.getContext(), 257)); - SDValue ThreadPointer = DAG.getLoad(getPointerTy(), dl, Chain, - Subtarget->is64Bit() - ? DAG.getIntPtrConstant(0x58) - : DAG.getExternalSymbol("_tls_array", - getPointerTy()), + SDValue TlsArray = Subtarget->is64Bit() ? DAG.getIntPtrConstant(0x58) : + (Subtarget->isTargetMingw() ? DAG.getIntPtrConstant(0x2C) : + DAG.getExternalSymbol("_tls_array", getPointerTy())); + + SDValue ThreadPointer = DAG.getLoad(getPointerTy(), dl, Chain, TlsArray, MachinePointerInfo(Ptr), false, false, false, 0); @@ -7846,7 +7894,6 @@ X86TargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const { llvm_unreachable("TLS not implemented for this target."); } - /// LowerShiftParts - Lower SRA_PARTS and friends, which return two i32 values /// and take a 2 x i32 value to shift plus a shift amount. SDValue X86TargetLowering::LowerShiftParts(SDValue Op, SelectionDAG &DAG) const{ @@ -8013,9 +8060,11 @@ SDValue X86TargetLowering::LowerUINT_TO_FP_i64(SDValue Op, SmallVector<Constant*,2> CV1; CV1.push_back( - ConstantFP::get(*Context, APFloat(APInt(64, 0x4330000000000000ULL)))); + ConstantFP::get(*Context, APFloat(APFloat::IEEEdouble, + APInt(64, 0x4330000000000000ULL)))); CV1.push_back( - ConstantFP::get(*Context, APFloat(APInt(64, 0x4530000000000000ULL)))); + ConstantFP::get(*Context, APFloat(APFloat::IEEEdouble, + APInt(64, 0x4530000000000000ULL)))); Constant *C1 = ConstantVector::get(CV1); SDValue CPIdx1 = DAG.getConstantPool(C1, getPointerTy(), 16); @@ -8109,7 +8158,8 @@ SDValue X86TargetLowering::lowerUINT_TO_FP_vec(SDValue Op, SVT == MVT::v8i8 || SVT == MVT::v8i16) && "Custom UINT_TO_FP is not supported!"); - EVT NVT = EVT::getVectorVT(*DAG.getContext(), MVT::i32, SVT.getVectorNumElements()); + EVT NVT = EVT::getVectorVT(*DAG.getContext(), MVT::i32, + SVT.getVectorNumElements()); return DAG.getNode(ISD::SINT_TO_FP, dl, Op.getValueType(), DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N0)); } @@ -8202,8 +8252,9 @@ SDValue X86TargetLowering::LowerUINT_TO_FP(SDValue Op, return DAG.getNode(ISD::FP_ROUND, dl, DstVT, Add, DAG.getIntPtrConstant(0)); } -std::pair<SDValue,SDValue> X86TargetLowering:: -FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG, bool IsSigned, bool IsReplace) const { +std::pair<SDValue,SDValue> +X86TargetLowering:: FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG, + bool IsSigned, bool IsReplace) const { DebugLoc DL = Op.getDebugLoc(); EVT DstTy = Op.getValueType(); @@ -8295,46 +8346,197 @@ FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG, bool IsSigned, bool IsReplace) co } } -SDValue X86TargetLowering::lowerZERO_EXTEND(SDValue Op, SelectionDAG &DAG) const { +static SDValue LowerAVXExtend(SDValue Op, SelectionDAG &DAG, + const X86Subtarget *Subtarget) { + MVT VT = Op->getValueType(0).getSimpleVT(); + SDValue In = Op->getOperand(0); + MVT InVT = In.getValueType().getSimpleVT(); + DebugLoc dl = Op->getDebugLoc(); + + // Optimize vectors in AVX mode: + // + // v8i16 -> v8i32 + // Use vpunpcklwd for 4 lower elements v8i16 -> v4i32. + // Use vpunpckhwd for 4 upper elements v8i16 -> v4i32. + // Concat upper and lower parts. + // + // v4i32 -> v4i64 + // Use vpunpckldq for 4 lower elements v4i32 -> v2i64. + // Use vpunpckhdq for 4 upper elements v4i32 -> v2i64. + // Concat upper and lower parts. + // + + if (((VT != MVT::v8i32) || (InVT != MVT::v8i16)) && + ((VT != MVT::v4i64) || (InVT != MVT::v4i32))) + return SDValue(); + + if (Subtarget->hasInt256()) + return DAG.getNode(X86ISD::VZEXT_MOVL, dl, VT, In); + + SDValue ZeroVec = getZeroVector(InVT, Subtarget, DAG, dl); + SDValue Undef = DAG.getUNDEF(InVT); + bool NeedZero = Op.getOpcode() == ISD::ZERO_EXTEND; + SDValue OpLo = getUnpackl(DAG, dl, InVT, In, NeedZero ? ZeroVec : Undef); + SDValue OpHi = getUnpackh(DAG, dl, InVT, In, NeedZero ? ZeroVec : Undef); + + MVT HVT = MVT::getVectorVT(VT.getVectorElementType(), + VT.getVectorNumElements()/2); + + OpLo = DAG.getNode(ISD::BITCAST, dl, HVT, OpLo); + OpHi = DAG.getNode(ISD::BITCAST, dl, HVT, OpHi); + + return DAG.getNode(ISD::CONCAT_VECTORS, dl, VT, OpLo, OpHi); +} + +SDValue X86TargetLowering::LowerANY_EXTEND(SDValue Op, + SelectionDAG &DAG) const { + if (Subtarget->hasFp256()) { + SDValue Res = LowerAVXExtend(Op, DAG, Subtarget); + if (Res.getNode()) + return Res; + } + + return SDValue(); +} +SDValue X86TargetLowering::LowerZERO_EXTEND(SDValue Op, + SelectionDAG &DAG) const { DebugLoc DL = Op.getDebugLoc(); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); SDValue In = Op.getOperand(0); - EVT SVT = In.getValueType(); + MVT SVT = In.getValueType().getSimpleVT(); + + if (Subtarget->hasFp256()) { + SDValue Res = LowerAVXExtend(Op, DAG, Subtarget); + if (Res.getNode()) + return Res; + } if (!VT.is256BitVector() || !SVT.is128BitVector() || VT.getVectorNumElements() != SVT.getVectorNumElements()) return SDValue(); - assert(Subtarget->hasAVX() && "256-bit vector is observed without AVX!"); + assert(Subtarget->hasFp256() && "256-bit vector is observed without AVX!"); // AVX2 has better support of integer extending. - if (Subtarget->hasAVX2()) + if (Subtarget->hasInt256()) return DAG.getNode(X86ISD::VZEXT, DL, VT, In); SDValue Lo = DAG.getNode(X86ISD::VZEXT, DL, MVT::v4i32, In); static const int Mask[] = {4, 5, 6, 7, -1, -1, -1, -1}; SDValue Hi = DAG.getNode(X86ISD::VZEXT, DL, MVT::v4i32, - DAG.getVectorShuffle(MVT::v8i16, DL, In, DAG.getUNDEF(MVT::v8i16), &Mask[0])); + DAG.getVectorShuffle(MVT::v8i16, DL, In, + DAG.getUNDEF(MVT::v8i16), + &Mask[0])); return DAG.getNode(ISD::CONCAT_VECTORS, DL, MVT::v8i32, Lo, Hi); } -SDValue X86TargetLowering::lowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const { +SDValue X86TargetLowering::LowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const { DebugLoc DL = Op.getDebugLoc(); - EVT VT = Op.getValueType(); - EVT SVT = Op.getOperand(0).getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); + SDValue In = Op.getOperand(0); + MVT SVT = In.getValueType().getSimpleVT(); - if (!VT.is128BitVector() || !SVT.is256BitVector() || - VT.getVectorNumElements() != SVT.getVectorNumElements()) + if ((VT == MVT::v4i32) && (SVT == MVT::v4i64)) { + // On AVX2, v4i64 -> v4i32 becomes VPERMD. + if (Subtarget->hasInt256()) { + static const int ShufMask[] = {0, 2, 4, 6, -1, -1, -1, -1}; + In = DAG.getNode(ISD::BITCAST, DL, MVT::v8i32, In); + In = DAG.getVectorShuffle(MVT::v8i32, DL, In, DAG.getUNDEF(MVT::v8i32), + ShufMask); + return DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, VT, In, + DAG.getIntPtrConstant(0)); + } + + // On AVX, v4i64 -> v4i32 becomes a sequence that uses PSHUFD and MOVLHPS. + SDValue OpLo = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, MVT::v2i64, In, + DAG.getIntPtrConstant(0)); + SDValue OpHi = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, MVT::v2i64, In, + DAG.getIntPtrConstant(2)); + + OpLo = DAG.getNode(ISD::BITCAST, DL, MVT::v4i32, OpLo); + OpHi = DAG.getNode(ISD::BITCAST, DL, MVT::v4i32, OpHi); + + // The PSHUFD mask: + static const int ShufMask1[] = {0, 2, 0, 0}; + SDValue Undef = DAG.getUNDEF(VT); + OpLo = DAG.getVectorShuffle(VT, DL, OpLo, Undef, ShufMask1); + OpHi = DAG.getVectorShuffle(VT, DL, OpHi, Undef, ShufMask1); + + // The MOVLHPS mask: + static const int ShufMask2[] = {0, 1, 4, 5}; + return DAG.getVectorShuffle(VT, DL, OpLo, OpHi, ShufMask2); + } + + if ((VT == MVT::v8i16) && (SVT == MVT::v8i32)) { + // On AVX2, v8i32 -> v8i16 becomed PSHUFB. + if (Subtarget->hasInt256()) { + In = DAG.getNode(ISD::BITCAST, DL, MVT::v32i8, In); + + SmallVector<SDValue,32> pshufbMask; + for (unsigned i = 0; i < 2; ++i) { + pshufbMask.push_back(DAG.getConstant(0x0, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0x1, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0x4, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0x5, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0x8, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0x9, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0xc, MVT::i8)); + pshufbMask.push_back(DAG.getConstant(0xd, MVT::i8)); + for (unsigned j = 0; j < 8; ++j) + pshufbMask.push_back(DAG.getConstant(0x80, MVT::i8)); + } + SDValue BV = DAG.getNode(ISD::BUILD_VECTOR, DL, MVT::v32i8, + &pshufbMask[0], 32); + In = DAG.getNode(X86ISD::PSHUFB, DL, MVT::v32i8, In, BV); + In = DAG.getNode(ISD::BITCAST, DL, MVT::v4i64, In); + + static const int ShufMask[] = {0, 2, -1, -1}; + In = DAG.getVectorShuffle(MVT::v4i64, DL, In, DAG.getUNDEF(MVT::v4i64), + &ShufMask[0]); + In = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, MVT::v2i64, In, + DAG.getIntPtrConstant(0)); + return DAG.getNode(ISD::BITCAST, DL, VT, In); + } + + SDValue OpLo = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, MVT::v4i32, In, + DAG.getIntPtrConstant(0)); + + SDValue OpHi = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, MVT::v4i32, In, + DAG.getIntPtrConstant(4)); + + OpLo = DAG.getNode(ISD::BITCAST, DL, MVT::v16i8, OpLo); + OpHi = DAG.getNode(ISD::BITCAST, DL, MVT::v16i8, OpHi); + + // The PSHUFB mask: + static const int ShufMask1[] = {0, 1, 4, 5, 8, 9, 12, 13, + -1, -1, -1, -1, -1, -1, -1, -1}; + + SDValue Undef = DAG.getUNDEF(MVT::v16i8); + OpLo = DAG.getVectorShuffle(MVT::v16i8, DL, OpLo, Undef, ShufMask1); + OpHi = DAG.getVectorShuffle(MVT::v16i8, DL, OpHi, Undef, ShufMask1); + + OpLo = DAG.getNode(ISD::BITCAST, DL, MVT::v4i32, OpLo); + OpHi = DAG.getNode(ISD::BITCAST, DL, MVT::v4i32, OpHi); + + // The MOVLHPS Mask: + static const int ShufMask2[] = {0, 1, 4, 5}; + SDValue res = DAG.getVectorShuffle(MVT::v4i32, DL, OpLo, OpHi, ShufMask2); + return DAG.getNode(ISD::BITCAST, DL, MVT::v8i16, res); + } + + // Handle truncation of V256 to V128 using shuffles. + if (!VT.is128BitVector() || !SVT.is256BitVector()) return SDValue(); - assert(Subtarget->hasAVX() && "256-bit vector is observed without AVX!"); + assert(VT.getVectorNumElements() != SVT.getVectorNumElements() && + "Invalid op"); + assert(Subtarget->hasFp256() && "256-bit vector without AVX!"); unsigned NumElems = VT.getVectorNumElements(); EVT NVT = EVT::getVectorVT(*DAG.getContext(), VT.getVectorElementType(), NumElems * 2); - SDValue In = Op.getOperand(0); SmallVector<int, 16> MaskVec(NumElems * 2, -1); // Prepare truncation shuffle mask for (unsigned i = 0; i != NumElems; ++i) @@ -8348,9 +8550,10 @@ SDValue X86TargetLowering::lowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const { SDValue X86TargetLowering::LowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) const { - if (Op.getValueType().isVector()) { - if (Op.getValueType() == MVT::v8i16) - return DAG.getNode(ISD::TRUNCATE, Op.getDebugLoc(), Op.getValueType(), + MVT VT = Op.getValueType().getSimpleVT(); + if (VT.isVector()) { + if (VT == MVT::v8i16) + return DAG.getNode(ISD::TRUNCATE, Op.getDebugLoc(), VT, DAG.getNode(ISD::FP_TO_SINT, Op.getDebugLoc(), MVT::v8i32, Op.getOperand(0))); return SDValue(); @@ -8389,12 +8592,11 @@ SDValue X86TargetLowering::LowerFP_TO_UINT(SDValue Op, return FIST; } -SDValue X86TargetLowering::lowerFP_EXTEND(SDValue Op, - SelectionDAG &DAG) const { +static SDValue LowerFP_EXTEND(SDValue Op, SelectionDAG &DAG) { DebugLoc DL = Op.getDebugLoc(); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); SDValue In = Op.getOperand(0); - EVT SVT = In.getValueType(); + MVT SVT = In.getValueType().getSimpleVT(); assert(SVT == MVT::v2f32 && "Only customize MVT::v2f32 type legalization!"); @@ -8406,8 +8608,8 @@ SDValue X86TargetLowering::lowerFP_EXTEND(SDValue Op, SDValue X86TargetLowering::LowerFABS(SDValue Op, SelectionDAG &DAG) const { LLVMContext *Context = DAG.getContext(); DebugLoc dl = Op.getDebugLoc(); - EVT VT = Op.getValueType(); - EVT EltVT = VT; + MVT VT = Op.getValueType().getSimpleVT(); + MVT EltVT = VT; unsigned NumElts = VT == MVT::f64 ? 2 : 4; if (VT.isVector()) { EltVT = VT.getVectorElementType(); @@ -8415,9 +8617,11 @@ SDValue X86TargetLowering::LowerFABS(SDValue Op, SelectionDAG &DAG) const { } Constant *C; if (EltVT == MVT::f64) - C = ConstantFP::get(*Context, APFloat(APInt(64, ~(1ULL << 63)))); + C = ConstantFP::get(*Context, APFloat(APFloat::IEEEdouble, + APInt(64, ~(1ULL << 63)))); else - C = ConstantFP::get(*Context, APFloat(APInt(32, ~(1U << 31)))); + C = ConstantFP::get(*Context, APFloat(APFloat::IEEEsingle, + APInt(32, ~(1U << 31)))); C = ConstantVector::getSplat(NumElts, C); SDValue CPIdx = DAG.getConstantPool(C, getPointerTy()); unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); @@ -8438,8 +8642,8 @@ SDValue X86TargetLowering::LowerFABS(SDValue Op, SelectionDAG &DAG) const { SDValue X86TargetLowering::LowerFNEG(SDValue Op, SelectionDAG &DAG) const { LLVMContext *Context = DAG.getContext(); DebugLoc dl = Op.getDebugLoc(); - EVT VT = Op.getValueType(); - EVT EltVT = VT; + MVT VT = Op.getValueType().getSimpleVT(); + MVT EltVT = VT; unsigned NumElts = VT == MVT::f64 ? 2 : 4; if (VT.isVector()) { EltVT = VT.getVectorElementType(); @@ -8447,9 +8651,11 @@ SDValue X86TargetLowering::LowerFNEG(SDValue Op, SelectionDAG &DAG) const { } Constant *C; if (EltVT == MVT::f64) - C = ConstantFP::get(*Context, APFloat(APInt(64, 1ULL << 63))); + C = ConstantFP::get(*Context, APFloat(APFloat::IEEEdouble, + APInt(64, 1ULL << 63))); else - C = ConstantFP::get(*Context, APFloat(APInt(32, 1U << 31))); + C = ConstantFP::get(*Context, APFloat(APFloat::IEEEsingle, + APInt(32, 1U << 31))); C = ConstantVector::getSplat(NumElts, C); SDValue CPIdx = DAG.getConstantPool(C, getPointerTy()); unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); @@ -8473,8 +8679,8 @@ SDValue X86TargetLowering::LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const { SDValue Op0 = Op.getOperand(0); SDValue Op1 = Op.getOperand(1); DebugLoc dl = Op.getDebugLoc(); - EVT VT = Op.getValueType(); - EVT SrcVT = Op1.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); + MVT SrcVT = Op1.getValueType().getSimpleVT(); // If second operand is smaller, extend it first. if (SrcVT.bitsLT(VT)) { @@ -8493,13 +8699,15 @@ SDValue X86TargetLowering::LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const { // First get the sign bit of second operand. SmallVector<Constant*,4> CV; if (SrcVT == MVT::f64) { - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(64, 1ULL << 63)))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(64, 0)))); + const fltSemantics &Sem = APFloat::IEEEdouble; + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(64, 1ULL << 63)))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(64, 0)))); } else { - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 1U << 31)))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 0)))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 0)))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 0)))); + const fltSemantics &Sem = APFloat::IEEEsingle; + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 1U << 31)))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 0)))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 0)))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 0)))); } Constant *C = ConstantVector::get(CV); SDValue CPIdx = DAG.getConstantPool(C, getPointerTy(), 16); @@ -8522,13 +8730,17 @@ SDValue X86TargetLowering::LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const { // Clear first operand sign bit. CV.clear(); if (VT == MVT::f64) { - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(64, ~(1ULL << 63))))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(64, 0)))); + const fltSemantics &Sem = APFloat::IEEEdouble; + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, + APInt(64, ~(1ULL << 63))))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(64, 0)))); } else { - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, ~(1U << 31))))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 0)))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 0)))); - CV.push_back(ConstantFP::get(*Context, APFloat(APInt(32, 0)))); + const fltSemantics &Sem = APFloat::IEEEsingle; + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, + APInt(32, ~(1U << 31))))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 0)))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 0)))); + CV.push_back(ConstantFP::get(*Context, APFloat(Sem, APInt(32, 0)))); } C = ConstantVector::get(CV); CPIdx = DAG.getConstantPool(C, getPointerTy(), 16); @@ -8544,7 +8756,7 @@ SDValue X86TargetLowering::LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const { static SDValue LowerFGETSIGN(SDValue Op, SelectionDAG &DAG) { SDValue N0 = Op.getOperand(0); DebugLoc dl = Op.getDebugLoc(); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); // Lower ISD::FGETSIGN to (AND (X86ISD::FGETSIGNx86 ...) 1). SDValue xFGETSIGN = DAG.getNode(X86ISD::FGETSIGNx86, dl, VT, N0, @@ -8554,7 +8766,8 @@ static SDValue LowerFGETSIGN(SDValue Op, SelectionDAG &DAG) { // LowerVectorAllZeroTest - Check whether an OR'd tree is PTEST-able. // -SDValue X86TargetLowering::LowerVectorAllZeroTest(SDValue Op, SelectionDAG &DAG) const { +SDValue X86TargetLowering::LowerVectorAllZeroTest(SDValue Op, + SelectionDAG &DAG) const { assert(Op.getOpcode() == ISD::OR && "Only check OR'd tree."); if (!Subtarget->hasSSE41()) @@ -8899,6 +9112,11 @@ SDValue X86TargetLowering::ConvertCmpIfNecessary(SDValue Cmp, return DAG.getNode(X86ISD::SAHF, dl, MVT::i32, TruncSrl); } +static bool isAllOnes(SDValue V) { + ConstantSDNode *C = dyn_cast<ConstantSDNode>(V); + return C && C->isAllOnesValue(); +} + /// LowerToBT - Result of 'and' is compared against zero. Turn it into a BT node /// if it's possible. SDValue X86TargetLowering::LowerToBT(SDValue And, ISD::CondCode CC, @@ -8947,6 +9165,14 @@ SDValue X86TargetLowering::LowerToBT(SDValue And, ISD::CondCode CC, } if (LHS.getNode()) { + // If the LHS is of the form (x ^ -1) then replace the LHS with x and flip + // the condition code later. + bool Invert = false; + if (LHS.getOpcode() == ISD::XOR && isAllOnes(LHS.getOperand(1))) { + Invert = true; + LHS = LHS.getOperand(0); + } + // If LHS is i8, promote it to i32 with any_extend. There is no i8 BT // instruction. Since the shift amount is in-range-or-undefined, we know // that doing a bittest on the i32 value is ok. We extend to i32 because @@ -8962,7 +9188,10 @@ SDValue X86TargetLowering::LowerToBT(SDValue And, ISD::CondCode CC, RHS = DAG.getNode(ISD::ANY_EXTEND, dl, LHS.getValueType(), RHS); SDValue BT = DAG.getNode(X86ISD::BT, dl, MVT::i32, LHS, RHS); - unsigned Cond = CC == ISD::SETEQ ? X86::COND_AE : X86::COND_B; + X86::CondCode Cond = CC == ISD::SETEQ ? X86::COND_AE : X86::COND_B; + // Flip the condition if the LHS was a not instruction + if (Invert) + Cond = X86::GetOppositeBranchCondition(Cond); return DAG.getNode(X86ISD::SETCC, dl, MVT::i8, DAG.getConstant(Cond, MVT::i8), BT); } @@ -8970,65 +9199,10 @@ SDValue X86TargetLowering::LowerToBT(SDValue And, ISD::CondCode CC, return SDValue(); } -SDValue X86TargetLowering::LowerSETCC(SDValue Op, SelectionDAG &DAG) const { - - if (Op.getValueType().isVector()) return LowerVSETCC(Op, DAG); - - assert(Op.getValueType() == MVT::i8 && "SetCC type must be 8-bit integer"); - SDValue Op0 = Op.getOperand(0); - SDValue Op1 = Op.getOperand(1); - DebugLoc dl = Op.getDebugLoc(); - ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(2))->get(); - - // Optimize to BT if possible. - // Lower (X & (1 << N)) == 0 to BT(X, N). - // Lower ((X >>u N) & 1) != 0 to BT(X, N). - // Lower ((X >>s N) & 1) != 0 to BT(X, N). - if (Op0.getOpcode() == ISD::AND && Op0.hasOneUse() && - Op1.getOpcode() == ISD::Constant && - cast<ConstantSDNode>(Op1)->isNullValue() && - (CC == ISD::SETEQ || CC == ISD::SETNE)) { - SDValue NewSetCC = LowerToBT(Op0, CC, dl, DAG); - if (NewSetCC.getNode()) - return NewSetCC; - } - - // Look for X == 0, X == 1, X != 0, or X != 1. We can simplify some forms of - // these. - if (Op1.getOpcode() == ISD::Constant && - (cast<ConstantSDNode>(Op1)->getZExtValue() == 1 || - cast<ConstantSDNode>(Op1)->isNullValue()) && - (CC == ISD::SETEQ || CC == ISD::SETNE)) { - - // If the input is a setcc, then reuse the input setcc or use a new one with - // the inverted condition. - if (Op0.getOpcode() == X86ISD::SETCC) { - X86::CondCode CCode = (X86::CondCode)Op0.getConstantOperandVal(0); - bool Invert = (CC == ISD::SETNE) ^ - cast<ConstantSDNode>(Op1)->isNullValue(); - if (!Invert) return Op0; - - CCode = X86::GetOppositeBranchCondition(CCode); - return DAG.getNode(X86ISD::SETCC, dl, MVT::i8, - DAG.getConstant(CCode, MVT::i8), Op0.getOperand(1)); - } - } - - bool isFP = Op1.getValueType().isFloatingPoint(); - unsigned X86CC = TranslateX86CC(CC, isFP, Op0, Op1, DAG); - if (X86CC == X86::COND_INVALID) - return SDValue(); - - SDValue EFLAGS = EmitCmp(Op0, Op1, X86CC, DAG); - EFLAGS = ConvertCmpIfNecessary(EFLAGS, DAG); - return DAG.getNode(X86ISD::SETCC, dl, MVT::i8, - DAG.getConstant(X86CC, MVT::i8), EFLAGS); -} - // Lower256IntVSETCC - Break a VSETCC 256-bit integer VSETCC into two new 128 // ones, and then concatenate the result back. static SDValue Lower256IntVSETCC(SDValue Op, SelectionDAG &DAG) { - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); assert(VT.is256BitVector() && Op.getOpcode() == ISD::SETCC && "Unsupported value type for operation"); @@ -9048,27 +9222,27 @@ static SDValue Lower256IntVSETCC(SDValue Op, SelectionDAG &DAG) { SDValue RHS2 = Extract128BitVector(RHS, NumElems/2, DAG, dl); // Issue the operation on the smaller types and concatenate the result back - MVT EltVT = VT.getVectorElementType().getSimpleVT(); - EVT NewVT = MVT::getVectorVT(EltVT, NumElems/2); + MVT EltVT = VT.getVectorElementType(); + MVT NewVT = MVT::getVectorVT(EltVT, NumElems/2); return DAG.getNode(ISD::CONCAT_VECTORS, dl, VT, DAG.getNode(Op.getOpcode(), dl, NewVT, LHS1, RHS1, CC), DAG.getNode(Op.getOpcode(), dl, NewVT, LHS2, RHS2, CC)); } - -SDValue X86TargetLowering::LowerVSETCC(SDValue Op, SelectionDAG &DAG) const { +static SDValue LowerVSETCC(SDValue Op, const X86Subtarget *Subtarget, + SelectionDAG &DAG) { SDValue Cond; SDValue Op0 = Op.getOperand(0); SDValue Op1 = Op.getOperand(1); SDValue CC = Op.getOperand(2); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); ISD::CondCode SetCCOpcode = cast<CondCodeSDNode>(CC)->get(); - bool isFP = Op.getOperand(1).getValueType().isFloatingPoint(); + bool isFP = Op.getOperand(1).getValueType().getSimpleVT().isFloatingPoint(); DebugLoc dl = Op.getDebugLoc(); if (isFP) { #ifndef NDEBUG - EVT EltVT = Op0.getValueType().getVectorElementType(); + MVT EltVT = Op0.getValueType().getVectorElementType().getSimpleVT(); assert(EltVT == MVT::f32 || EltVT == MVT::f64); #endif @@ -9133,7 +9307,7 @@ SDValue X86TargetLowering::LowerVSETCC(SDValue Op, SelectionDAG &DAG) const { } // Break 256-bit integer vector compare into smaller ones. - if (VT.is256BitVector() && !Subtarget->hasAVX2()) + if (VT.is256BitVector() && !Subtarget->hasInt256()) return Lower256IntVSETCC(Op, DAG); // We are handling one of the integer comparisons here. Since SSE only has @@ -9163,8 +9337,28 @@ SDValue X86TargetLowering::LowerVSETCC(SDValue Op, SelectionDAG &DAG) const { if (VT == MVT::v2i64) { if (Opc == X86ISD::PCMPGT && !Subtarget->hasSSE42()) return SDValue(); - if (Opc == X86ISD::PCMPEQ && !Subtarget->hasSSE41()) - return SDValue(); + if (Opc == X86ISD::PCMPEQ && !Subtarget->hasSSE41()) { + // If pcmpeqq is missing but pcmpeqd is available synthesize pcmpeqq with + // pcmpeqd + pshufd + pand. + assert(Subtarget->hasSSE2() && !FlipSigns && "Don't know how to lower!"); + + // First cast everything to the right type, + Op0 = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, Op0); + Op1 = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, Op1); + + // Do the compare. + SDValue Result = DAG.getNode(Opc, dl, MVT::v4i32, Op0, Op1); + + // Make sure the lower and upper halves are both all-ones. + const int Mask[] = { 1, 0, 3, 2 }; + SDValue Shuf = DAG.getVectorShuffle(MVT::v4i32, dl, Result, Result, Mask); + Result = DAG.getNode(ISD::AND, dl, MVT::v4i32, Result, Shuf); + + if (Invert) + Result = DAG.getNOT(dl, Result, MVT::v4i32); + + return DAG.getNode(ISD::BITCAST, dl, VT, Result); + } } // Since SSE has no unsigned integer comparisons, we need to flip the sign @@ -9189,6 +9383,63 @@ SDValue X86TargetLowering::LowerVSETCC(SDValue Op, SelectionDAG &DAG) const { return Result; } +SDValue X86TargetLowering::LowerSETCC(SDValue Op, SelectionDAG &DAG) const { + + MVT VT = Op.getValueType().getSimpleVT(); + + if (VT.isVector()) return LowerVSETCC(Op, Subtarget, DAG); + + assert(VT == MVT::i8 && "SetCC type must be 8-bit integer"); + SDValue Op0 = Op.getOperand(0); + SDValue Op1 = Op.getOperand(1); + DebugLoc dl = Op.getDebugLoc(); + ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(2))->get(); + + // Optimize to BT if possible. + // Lower (X & (1 << N)) == 0 to BT(X, N). + // Lower ((X >>u N) & 1) != 0 to BT(X, N). + // Lower ((X >>s N) & 1) != 0 to BT(X, N). + if (Op0.getOpcode() == ISD::AND && Op0.hasOneUse() && + Op1.getOpcode() == ISD::Constant && + cast<ConstantSDNode>(Op1)->isNullValue() && + (CC == ISD::SETEQ || CC == ISD::SETNE)) { + SDValue NewSetCC = LowerToBT(Op0, CC, dl, DAG); + if (NewSetCC.getNode()) + return NewSetCC; + } + + // Look for X == 0, X == 1, X != 0, or X != 1. We can simplify some forms of + // these. + if (Op1.getOpcode() == ISD::Constant && + (cast<ConstantSDNode>(Op1)->getZExtValue() == 1 || + cast<ConstantSDNode>(Op1)->isNullValue()) && + (CC == ISD::SETEQ || CC == ISD::SETNE)) { + + // If the input is a setcc, then reuse the input setcc or use a new one with + // the inverted condition. + if (Op0.getOpcode() == X86ISD::SETCC) { + X86::CondCode CCode = (X86::CondCode)Op0.getConstantOperandVal(0); + bool Invert = (CC == ISD::SETNE) ^ + cast<ConstantSDNode>(Op1)->isNullValue(); + if (!Invert) return Op0; + + CCode = X86::GetOppositeBranchCondition(CCode); + return DAG.getNode(X86ISD::SETCC, dl, MVT::i8, + DAG.getConstant(CCode, MVT::i8), Op0.getOperand(1)); + } + } + + bool isFP = Op1.getValueType().getSimpleVT().isFloatingPoint(); + unsigned X86CC = TranslateX86CC(CC, isFP, Op0, Op1, DAG); + if (X86CC == X86::COND_INVALID) + return SDValue(); + + SDValue EFLAGS = EmitCmp(Op0, Op1, X86CC, DAG); + EFLAGS = ConvertCmpIfNecessary(EFLAGS, DAG); + return DAG.getNode(X86ISD::SETCC, dl, MVT::i8, + DAG.getConstant(X86CC, MVT::i8), EFLAGS); +} + // isX86LogicalCmp - Return true if opcode is a X86 logical comparison. static bool isX86LogicalCmp(SDValue Op) { unsigned Opc = Op.getNode()->getOpcode(); @@ -9220,11 +9471,6 @@ static bool isZero(SDValue V) { return C && C->isNullValue(); } -static bool isAllOnes(SDValue V) { - ConstantSDNode *C = dyn_cast<ConstantSDNode>(V); - return C && C->isAllOnesValue(); -} - static bool isTruncWithZeroHighBitsInput(SDValue V, SelectionDAG &DAG) { if (V.getOpcode() != ISD::TRUNCATE) return false; @@ -9316,7 +9562,7 @@ SDValue X86TargetLowering::LowerSELECT(SDValue Op, SelectionDAG &DAG) const { SDValue Cmp = Cond.getOperand(1); unsigned Opc = Cmp.getOpcode(); - EVT VT = Op.getValueType(); + MVT VT = Op.getValueType().getSimpleVT(); bool IllegalFPCMov = false; if (VT.isFloatingPoint() && !VT.isVector() && @@ -9425,6 +9671,53 @@ SDValue X86TargetLowering::LowerSELECT(SDValue Op, SelectionDAG &DAG) const { return DAG.getNode(X86ISD::CMOV, DL, VTs, Ops, array_lengthof(Ops)); } +SDValue X86TargetLowering::LowerSIGN_EXTEND(SDValue Op, + SelectionDAG &DAG) const { + MVT VT = Op->getValueType(0).getSimpleVT(); + SDValue In = Op->getOperand(0); + MVT InVT = In.getValueType().getSimpleVT(); + DebugLoc dl = Op->getDebugLoc(); + + if ((VT != MVT::v4i64 || InVT != MVT::v4i32) && + (VT != MVT::v8i32 || InVT != MVT::v8i16)) + return SDValue(); + + if (Subtarget->hasInt256()) + return DAG.getNode(X86ISD::VSEXT_MOVL, dl, VT, In); + + // Optimize vectors in AVX mode + // Sign extend v8i16 to v8i32 and + // v4i32 to v4i64 + // + // Divide input vector into two parts + // for v4i32 the shuffle mask will be { 0, 1, -1, -1} {2, 3, -1, -1} + // use vpmovsx instruction to extend v4i32 -> v2i64; v8i16 -> v4i32 + // concat the vectors to original VT + + unsigned NumElems = InVT.getVectorNumElements(); + SDValue Undef = DAG.getUNDEF(InVT); + + SmallVector<int,8> ShufMask1(NumElems, -1); + for (unsigned i = 0; i != NumElems/2; ++i) + ShufMask1[i] = i; + + SDValue OpLo = DAG.getVectorShuffle(InVT, dl, In, Undef, &ShufMask1[0]); + + SmallVector<int,8> ShufMask2(NumElems, -1); + for (unsigned i = 0; i != NumElems/2; ++i) + ShufMask2[i] = i + NumElems/2; + + SDValue OpHi = DAG.getVectorShuffle(InVT, dl, In, Undef, &ShufMask2[0]); + + MVT HalfVT = MVT::getVectorVT(VT.getScalarType(), + VT.getVectorNumElements()/2); + + OpLo = DAG.getNode(X86ISD::VSEXT_MOVL, dl, HalfVT, OpLo); + OpHi = DAG.getNode(X86ISD::VSEXT_MOVL, dl, HalfVT, OpHi); + + return DAG.getNode(ISD::CONCAT_VECTORS, dl, VT, OpLo, OpHi); +} + // isAndOrOfSingleUseSetCCs - Return true if node is an ISD::AND or // ISD::OR of two X86ISD::SETCC nodes each of which has no other use apart // from the AND / OR. @@ -9713,7 +10006,6 @@ SDValue X86TargetLowering::LowerBRCOND(SDValue Op, SelectionDAG &DAG) const { Chain, Dest, CC, Cond); } - // Lower dynamic stack allocation to _alloca call for Cygwin/Mingw targets. // Calls to _alloca is needed to probe the stack when allocating more than 4k // bytes in one go. Touching the stack at 4K increments is necessary to ensure @@ -9876,8 +10168,9 @@ SDValue X86TargetLowering::LowerVAARG(SDValue Op, SelectionDAG &DAG) const { // Sanity Check: Make sure using fp_offset makes sense. assert(!getTargetMachine().Options.UseSoftFloat && !(DAG.getMachineFunction() - .getFunction()->getFnAttributes() - .hasAttribute(Attributes::NoImplicitFloat)) && + .getFunction()->getAttributes() + .hasAttribute(AttributeSet::FunctionIndex, + Attribute::NoImplicitFloat)) && Subtarget->hasSSE1()); } @@ -9925,7 +10218,7 @@ static SDValue LowerVACOPY(SDValue Op, const X86Subtarget *Subtarget, MachinePointerInfo(DstSV), MachinePointerInfo(SrcSV)); } -// getTargetVShiftNOde - Handle vector element shifts where the shift amount +// getTargetVShiftNode - Handle vector element shifts where the shift amount // may or may not be a constant. Takes immediate version of shift as input. static SDValue getTargetVShiftNode(unsigned Opc, DebugLoc dl, EVT VT, SDValue SrcOp, SDValue ShAmt, @@ -10082,6 +10375,14 @@ static SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) { return DAG.getNode(X86ISD::PMULUDQ, dl, Op.getValueType(), Op.getOperand(1), Op.getOperand(2)); + // SSE2/AVX2 sub with unsigned saturation intrinsics + case Intrinsic::x86_sse2_psubus_b: + case Intrinsic::x86_sse2_psubus_w: + case Intrinsic::x86_avx2_psubus_b: + case Intrinsic::x86_avx2_psubus_w: + return DAG.getNode(X86ISD::SUBUS, dl, Op.getValueType(), + Op.getOperand(1), Op.getOperand(2)); + // SSE3/AVX horizontal add/sub intrinsics case Intrinsic::x86_sse3_hadd_ps: case Intrinsic::x86_sse3_hadd_pd: @@ -10131,6 +10432,100 @@ static SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) { Op.getOperand(1), Op.getOperand(2)); } + // SSE2/SSE41/AVX2 integer max/min intrinsics. + case Intrinsic::x86_sse2_pmaxu_b: + case Intrinsic::x86_sse41_pmaxuw: + case Intrinsic::x86_sse41_pmaxud: + case Intrinsic::x86_avx2_pmaxu_b: + case Intrinsic::x86_avx2_pmaxu_w: + case Intrinsic::x86_avx2_pmaxu_d: + case Intrinsic::x86_sse2_pminu_b: + case Intrinsic::x86_sse41_pminuw: + case Intrinsic::x86_sse41_pminud: + case Intrinsic::x86_avx2_pminu_b: + case Intrinsic::x86_avx2_pminu_w: + case Intrinsic::x86_avx2_pminu_d: + case Intrinsic::x86_sse41_pmaxsb: + case Intrinsic::x86_sse2_pmaxs_w: + case Intrinsic::x86_sse41_pmaxsd: + case Intrinsic::x86_avx2_pmaxs_b: + case Intrinsic::x86_avx2_pmaxs_w: + case Intrinsic::x86_avx2_pmaxs_d: + case Intrinsic::x86_sse41_pminsb: + case Intrinsic::x86_sse2_pmins_w: + case Intrinsic::x86_sse41_pminsd: + case Intrinsic::x86_avx2_pmins_b: + case Intrinsic::x86_avx2_pmins_w: + case Intrinsic::x86_avx2_pmins_d: { + unsigned Opcode; + switch (IntNo) { + default: llvm_unreachable("Impossible intrinsic"); // Can't reach here. + case Intrinsic::x86_sse2_pmaxu_b: + case Intrinsic::x86_sse41_pmaxuw: + case Intrinsic::x86_sse41_pmaxud: + case Intrinsic::x86_avx2_pmaxu_b: + case Intrinsic::x86_avx2_pmaxu_w: + case Intrinsic::x86_avx2_pmaxu_d: + Opcode = X86ISD::UMAX; + break; + case Intrinsic::x86_sse2_pminu_b: + case Intrinsic::x86_sse41_pminuw: + case Intrinsic::x86_sse41_pminud: + case Intrinsic::x86_avx2_pminu_b: + case Intrinsic::x86_avx2_pminu_w: + case Intrinsic::x86_avx2_pminu_d: + Opcode = X86ISD::UMIN; + break; + case Intrinsic::x86_sse41_pmaxsb: + case Intrinsic::x86_sse2_pmaxs_w: + case Intrinsic::x86_sse41_pmaxsd: + case Intrinsic::x86_avx2_pmaxs_b: + case Intrinsic::x86_avx2_pmaxs_w: + case Intrinsic::x86_avx2_pmaxs_d: + Opcode = X86ISD::SMAX; + break; + case Intrinsic::x86_sse41_pminsb: + case Intrinsic::x86_sse2_pmins_w: + case Intrinsic::x86_sse41_pminsd: + case Intrinsic::x86_avx2_pmins_b: + case Intrinsic::x86_avx2_pmins_w: + case Intrinsic::x86_avx2_pmins_d: + Opcode = X86ISD::SMIN; + break; + } + return DAG.getNode(Opcode, dl, Op.getValueType(), + Op.getOperand(1), Op.getOperand(2)); + } + + // SSE/SSE2/AVX floating point max/min intrinsics. + case Intrinsic::x86_sse_max_ps: + case Intrinsic::x86_sse2_max_pd: + case Intrinsic::x86_avx_max_ps_256: + case Intrinsic::x86_avx_max_pd_256: + case Intrinsic::x86_sse_min_ps: + case Intrinsic::x86_sse2_min_pd: + case Intrinsic::x86_avx_min_ps_256: + case Intrinsic::x86_avx_min_pd_256: { + unsigned Opcode; + switch (IntNo) { + default: llvm_unreachable("Impossible intrinsic"); // Can't reach here. + case Intrinsic::x86_sse_max_ps: + case Intrinsic::x86_sse2_max_pd: + case Intrinsic::x86_avx_max_ps_256: + case Intrinsic::x86_avx_max_pd_256: + Opcode = X86ISD::FMAX; + break; + case Intrinsic::x86_sse_min_ps: + case Intrinsic::x86_sse2_min_pd: + case Intrinsic::x86_avx_min_ps_256: + case Intrinsic::x86_avx_min_pd_256: + Opcode = X86ISD::FMIN; + break; + } + return DAG.getNode(Opcode, dl, Op.getValueType(), + Op.getOperand(1), Op.getOperand(2)); + } + // AVX2 variable shift intrinsics case Intrinsic::x86_avx2_psllv_d: case Intrinsic::x86_avx2_psllv_q: @@ -10198,6 +10593,12 @@ static SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) { return DAG.getNode(X86ISD::VPERMV, dl, Op.getValueType(), Op.getOperand(2), Op.getOperand(1)); + case Intrinsic::x86_sse_sqrt_ps: + case Intrinsic::x86_sse2_sqrt_pd: + case Intrinsic::x86_avx_sqrt_ps_256: + case Intrinsic::x86_avx_sqrt_pd_256: + return DAG.getNode(ISD::FSQRT, dl, Op.getValueType(), Op.getOperand(1)); + // ptest and testp intrinsics. The intrinsic these come from are designed to // return an integer value, not just an instruction so lower it to the ptest // or testp pattern and a setcc for the result. @@ -10513,16 +10914,23 @@ static SDValue LowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) { switch (IntNo) { default: return SDValue(); // Don't custom lower most intrinsics. - // RDRAND intrinsics. + // RDRAND/RDSEED intrinsics. case Intrinsic::x86_rdrand_16: case Intrinsic::x86_rdrand_32: - case Intrinsic::x86_rdrand_64: { + case Intrinsic::x86_rdrand_64: + case Intrinsic::x86_rdseed_16: + case Intrinsic::x86_rdseed_32: + case Intrinsic::x86_rdseed_64: { + unsigned Opcode = (IntNo == Intrinsic::x86_rdseed_16 || + IntNo == Intrinsic::x86_rdseed_32 || + IntNo == Intrinsic::x86_rdseed_64) ? X86ISD::RDSEED : + X86ISD::RDRAND; // Emit the node with the right value type. SDVTList VTs = DAG.getVTList(Op->getValueType(0), MVT::Glue, MVT::Other); - SDValue Result = DAG.getNode(X86ISD::RDRAND, dl, VTs, Op.getOperand(0)); + SDValue Result = DAG.getNode(Opcode, dl, VTs, Op.getOperand(0)); - // If the value returned by RDRAND was valid (CF=1), return 1. Otherwise - // return the value from Rand, which is always 0, casted to i32. + // If the value returned by RDRAND/RDSEED was valid (CF=1), return 1. + // Otherwise return the value from Rand, which is always 0, casted to i32. SDValue Ops[] = { DAG.getZExtOrTrunc(Result, dl, Op->getValueType(1)), DAG.getConstant(1, Op->getValueType(1)), DAG.getConstant(X86::COND_B, MVT::i32), @@ -10535,6 +10943,18 @@ static SDValue LowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) { return DAG.getNode(ISD::MERGE_VALUES, dl, Op->getVTList(), Result, isValid, SDValue(Result.getNode(), 2)); } + + // XTEST intrinsics. + case Intrinsic::x86_xtest: { + SDVTList VTs = DAG.getVTList(Op->getValueType(0), MVT::Other); + SDValue InTrans = DAG.getNode(X86ISD::XTEST, dl, VTs, Op.getOperand(0)); + SDValue SetCC = DAG.getNode(X86ISD::SETCC, dl, MVT::i8, + DAG.getConstant(X86::COND_NE, MVT::i8), + InTrans); + SDValue Ret = DAG.getNode(ISD::ZERO_EXTEND, dl, Op->getValueType(0), SetCC); + return DAG.getNode(ISD::MERGE_VALUES, dl, Op->getVTList(), + Ret, SDValue(InTrans.getNode(), 1)); + } } } @@ -10710,7 +11130,7 @@ SDValue X86TargetLowering::LowerINIT_TRAMPOLINE(SDValue Op, // Check that ECX wasn't needed by an 'inreg' parameter. FunctionType *FTy = Func->getFunctionType(); - const AttrListPtr &Attrs = Func->getAttributes(); + const AttributeSet &Attrs = Func->getAttributes(); if (!Attrs.isEmpty() && !Func->isVarArg()) { unsigned InRegCount = 0; @@ -10718,7 +11138,7 @@ SDValue X86TargetLowering::LowerINIT_TRAMPOLINE(SDValue Op, for (FunctionType::param_iterator I = FTy->param_begin(), E = FTy->param_end(); I != E; ++I, ++Idx) - if (Attrs.getParamAttributes(Idx).hasAttribute(Attributes::InReg)) + if (Attrs.hasAttribute(Idx, Attribute::InReg)) // FIXME: should only count parameters that are lowered to integers. InRegCount += (TD->getTypeSizeInBits(*I) + 31) / 32; @@ -10808,7 +11228,6 @@ SDValue X86TargetLowering::LowerFLT_ROUNDS_(SDValue Op, int SSFI = MF.getFrameInfo()->CreateStackObject(2, StackAlignment, false); SDValue StackSlot = DAG.getFrameIndex(SSFI, getPointerTy()); - MachineMemOperand *MMO = MF.getMachineMemOperand(MachinePointerInfo::getFixedStack(SSFI), MachineMemOperand::MOStore, 2, 2); @@ -10841,7 +11260,6 @@ SDValue X86TargetLowering::LowerFLT_ROUNDS_(SDValue Op, DAG.getConstant(1, MVT::i16)), DAG.getConstant(3, MVT::i16)); - return DAG.getNode((VT.getSizeInBits() < 16 ? ISD::TRUNCATE : ISD::ZERO_EXTEND), DL, VT, RetVal); } @@ -10970,17 +11388,43 @@ static SDValue LowerSUB(SDValue Op, SelectionDAG &DAG) { static SDValue LowerMUL(SDValue Op, const X86Subtarget *Subtarget, SelectionDAG &DAG) { + DebugLoc dl = Op.getDebugLoc(); EVT VT = Op.getValueType(); // Decompose 256-bit ops into smaller 128-bit ops. - if (VT.is256BitVector() && !Subtarget->hasAVX2()) + if (VT.is256BitVector() && !Subtarget->hasInt256()) return Lower256IntArith(Op, DAG); + SDValue A = Op.getOperand(0); + SDValue B = Op.getOperand(1); + + // Lower v4i32 mul as 2x shuffle, 2x pmuludq, 2x shuffle. + if (VT == MVT::v4i32) { + assert(Subtarget->hasSSE2() && !Subtarget->hasSSE41() && + "Should not custom lower when pmuldq is available!"); + + // Extract the odd parts. + const int UnpackMask[] = { 1, -1, 3, -1 }; + SDValue Aodds = DAG.getVectorShuffle(VT, dl, A, A, UnpackMask); + SDValue Bodds = DAG.getVectorShuffle(VT, dl, B, B, UnpackMask); + + // Multiply the even parts. + SDValue Evens = DAG.getNode(X86ISD::PMULUDQ, dl, MVT::v2i64, A, B); + // Now multiply odd parts. + SDValue Odds = DAG.getNode(X86ISD::PMULUDQ, dl, MVT::v2i64, Aodds, Bodds); + + Evens = DAG.getNode(ISD::BITCAST, dl, VT, Evens); + Odds = DAG.getNode(ISD::BITCAST, dl, VT, Odds); + + // Merge the two vectors back together with a shuffle. This expands into 2 + // shuffles. + const int ShufMask[] = { 0, 4, 2, 6 }; + return DAG.getVectorShuffle(VT, dl, Evens, Odds, ShufMask); + } + assert((VT == MVT::v2i64 || VT == MVT::v4i64) && "Only know how to lower V2I64/V4I64 multiply"); - DebugLoc dl = Op.getDebugLoc(); - // Ahi = psrlqi(a, 32); // Bhi = psrlqi(b, 32); // @@ -10992,9 +11436,6 @@ static SDValue LowerMUL(SDValue Op, const X86Subtarget *Subtarget, // AhiBlo = psllqi(AhiBlo, 32); // return AloBlo + AloBhi + AhiBlo; - SDValue A = Op.getOperand(0); - SDValue B = Op.getOperand(1); - SDValue ShAmt = DAG.getConstant(32, MVT::i32); SDValue Ahi = DAG.getNode(X86ISD::VSRLI, dl, VT, A, ShAmt); @@ -11018,16 +11459,55 @@ static SDValue LowerMUL(SDValue Op, const X86Subtarget *Subtarget, return DAG.getNode(ISD::ADD, dl, VT, Res, AhiBlo); } -SDValue X86TargetLowering::LowerShift(SDValue Op, SelectionDAG &DAG) const { +SDValue X86TargetLowering::LowerSDIV(SDValue Op, SelectionDAG &DAG) const { + EVT VT = Op.getValueType(); + EVT EltTy = VT.getVectorElementType(); + unsigned NumElts = VT.getVectorNumElements(); + SDValue N0 = Op.getOperand(0); + DebugLoc dl = Op.getDebugLoc(); + + // Lower sdiv X, pow2-const. + BuildVectorSDNode *C = dyn_cast<BuildVectorSDNode>(Op.getOperand(1)); + if (!C) + return SDValue(); + + APInt SplatValue, SplatUndef; + unsigned MinSplatBits; + bool HasAnyUndefs; + if (!C->isConstantSplat(SplatValue, SplatUndef, MinSplatBits, HasAnyUndefs)) + return SDValue(); + + if ((SplatValue != 0) && + (SplatValue.isPowerOf2() || (-SplatValue).isPowerOf2())) { + unsigned lg2 = SplatValue.countTrailingZeros(); + // Splat the sign bit. + SDValue Sz = DAG.getConstant(EltTy.getSizeInBits()-1, MVT::i32); + SDValue SGN = getTargetVShiftNode(X86ISD::VSRAI, dl, VT, N0, Sz, DAG); + // Add (N0 < 0) ? abs2 - 1 : 0; + SDValue Amt = DAG.getConstant(EltTy.getSizeInBits() - lg2, MVT::i32); + SDValue SRL = getTargetVShiftNode(X86ISD::VSRLI, dl, VT, SGN, Amt, DAG); + SDValue ADD = DAG.getNode(ISD::ADD, dl, VT, N0, SRL); + SDValue Lg2Amt = DAG.getConstant(lg2, MVT::i32); + SDValue SRA = getTargetVShiftNode(X86ISD::VSRAI, dl, VT, ADD, Lg2Amt, DAG); + + // If we're dividing by a positive value, we're done. Otherwise, we must + // negate the result. + if (SplatValue.isNonNegative()) + return SRA; + + SmallVector<SDValue, 16> V(NumElts, DAG.getConstant(0, EltTy)); + SDValue Zero = DAG.getNode(ISD::BUILD_VECTOR, dl, VT, &V[0], NumElts); + return DAG.getNode(ISD::SUB, dl, VT, Zero, SRA); + } + return SDValue(); +} +static SDValue LowerScalarImmediateShift(SDValue Op, SelectionDAG &DAG, + const X86Subtarget *Subtarget) { EVT VT = Op.getValueType(); DebugLoc dl = Op.getDebugLoc(); SDValue R = Op.getOperand(0); SDValue Amt = Op.getOperand(1); - LLVMContext *Context = DAG.getContext(); - - if (!Subtarget->hasSSE2()) - return SDValue(); // Optimize shl/srl/sra with constant shift amount. if (isSplatVector(Amt.getNode())) { @@ -11036,7 +11516,7 @@ SDValue X86TargetLowering::LowerShift(SDValue Op, SelectionDAG &DAG) const { uint64_t ShiftAmt = C->getZExtValue(); if (VT == MVT::v2i64 || VT == MVT::v4i32 || VT == MVT::v8i16 || - (Subtarget->hasAVX2() && + (Subtarget->hasInt256() && (VT == MVT::v4i64 || VT == MVT::v8i32 || VT == MVT::v16i16))) { if (Op.getOpcode() == ISD::SHL) return DAG.getNode(X86ISD::VSHLI, dl, VT, R, @@ -11093,7 +11573,7 @@ SDValue X86TargetLowering::LowerShift(SDValue Op, SelectionDAG &DAG) const { llvm_unreachable("Unknown shift opcode."); } - if (Subtarget->hasAVX2() && VT == MVT::v32i8) { + if (Subtarget->hasInt256() && VT == MVT::v32i8) { if (Op.getOpcode() == ISD::SHL) { // Make a large shift. SDValue SHL = DAG.getNode(X86ISD::VSHLI, dl, MVT::v16i16, R, @@ -11139,19 +11619,229 @@ SDValue X86TargetLowering::LowerShift(SDValue Op, SelectionDAG &DAG) const { } } + // Special case in 32-bit mode, where i64 is expanded into high and low parts. + if (!Subtarget->is64Bit() && + (VT == MVT::v2i64 || (Subtarget->hasInt256() && VT == MVT::v4i64)) && + Amt.getOpcode() == ISD::BITCAST && + Amt.getOperand(0).getOpcode() == ISD::BUILD_VECTOR) { + Amt = Amt.getOperand(0); + unsigned Ratio = Amt.getValueType().getVectorNumElements() / + VT.getVectorNumElements(); + unsigned RatioInLog2 = Log2_32_Ceil(Ratio); + uint64_t ShiftAmt = 0; + for (unsigned i = 0; i != Ratio; ++i) { + ConstantSDNode *C = dyn_cast<ConstantSDNode>(Amt.getOperand(i)); + if (C == 0) + return SDValue(); + // 6 == Log2(64) + ShiftAmt |= C->getZExtValue() << (i * (1 << (6 - RatioInLog2))); + } + // Check remaining shift amounts. + for (unsigned i = Ratio; i != Amt.getNumOperands(); i += Ratio) { + uint64_t ShAmt = 0; + for (unsigned j = 0; j != Ratio; ++j) { + ConstantSDNode *C = + dyn_cast<ConstantSDNode>(Amt.getOperand(i + j)); + if (C == 0) + return SDValue(); + // 6 == Log2(64) + ShAmt |= C->getZExtValue() << (j * (1 << (6 - RatioInLog2))); + } + if (ShAmt != ShiftAmt) + return SDValue(); + } + switch (Op.getOpcode()) { + default: + llvm_unreachable("Unknown shift opcode!"); + case ISD::SHL: + return DAG.getNode(X86ISD::VSHLI, dl, VT, R, + DAG.getConstant(ShiftAmt, MVT::i32)); + case ISD::SRL: + return DAG.getNode(X86ISD::VSRLI, dl, VT, R, + DAG.getConstant(ShiftAmt, MVT::i32)); + case ISD::SRA: + return DAG.getNode(X86ISD::VSRAI, dl, VT, R, + DAG.getConstant(ShiftAmt, MVT::i32)); + } + } + + return SDValue(); +} + +static SDValue LowerScalarVariableShift(SDValue Op, SelectionDAG &DAG, + const X86Subtarget* Subtarget) { + EVT VT = Op.getValueType(); + DebugLoc dl = Op.getDebugLoc(); + SDValue R = Op.getOperand(0); + SDValue Amt = Op.getOperand(1); + + if ((VT == MVT::v2i64 && Op.getOpcode() != ISD::SRA) || + VT == MVT::v4i32 || VT == MVT::v8i16 || + (Subtarget->hasInt256() && + ((VT == MVT::v4i64 && Op.getOpcode() != ISD::SRA) || + VT == MVT::v8i32 || VT == MVT::v16i16))) { + SDValue BaseShAmt; + EVT EltVT = VT.getVectorElementType(); + + if (Amt.getOpcode() == ISD::BUILD_VECTOR) { + unsigned NumElts = VT.getVectorNumElements(); + unsigned i, j; + for (i = 0; i != NumElts; ++i) { + if (Amt.getOperand(i).getOpcode() == ISD::UNDEF) + continue; + break; + } + for (j = i; j != NumElts; ++j) { + SDValue Arg = Amt.getOperand(j); + if (Arg.getOpcode() == ISD::UNDEF) continue; + if (Arg != Amt.getOperand(i)) + break; + } + if (i != NumElts && j == NumElts) + BaseShAmt = Amt.getOperand(i); + } else { + if (Amt.getOpcode() == ISD::EXTRACT_SUBVECTOR) + Amt = Amt.getOperand(0); + if (Amt.getOpcode() == ISD::VECTOR_SHUFFLE && + cast<ShuffleVectorSDNode>(Amt)->isSplat()) { + SDValue InVec = Amt.getOperand(0); + if (InVec.getOpcode() == ISD::BUILD_VECTOR) { + unsigned NumElts = InVec.getValueType().getVectorNumElements(); + unsigned i = 0; + for (; i != NumElts; ++i) { + SDValue Arg = InVec.getOperand(i); + if (Arg.getOpcode() == ISD::UNDEF) continue; + BaseShAmt = Arg; + break; + } + } else if (InVec.getOpcode() == ISD::INSERT_VECTOR_ELT) { + if (ConstantSDNode *C = + dyn_cast<ConstantSDNode>(InVec.getOperand(2))) { + unsigned SplatIdx = + cast<ShuffleVectorSDNode>(Amt)->getSplatIndex(); + if (C->getZExtValue() == SplatIdx) + BaseShAmt = InVec.getOperand(1); + } + } + if (BaseShAmt.getNode() == 0) + BaseShAmt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, Amt, + DAG.getIntPtrConstant(0)); + } + } + + if (BaseShAmt.getNode()) { + if (EltVT.bitsGT(MVT::i32)) + BaseShAmt = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, BaseShAmt); + else if (EltVT.bitsLT(MVT::i32)) + BaseShAmt = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i32, BaseShAmt); + + switch (Op.getOpcode()) { + default: + llvm_unreachable("Unknown shift opcode!"); + case ISD::SHL: + switch (VT.getSimpleVT().SimpleTy) { + default: return SDValue(); + case MVT::v2i64: + case MVT::v4i32: + case MVT::v8i16: + case MVT::v4i64: + case MVT::v8i32: + case MVT::v16i16: + return getTargetVShiftNode(X86ISD::VSHLI, dl, VT, R, BaseShAmt, DAG); + } + case ISD::SRA: + switch (VT.getSimpleVT().SimpleTy) { + default: return SDValue(); + case MVT::v4i32: + case MVT::v8i16: + case MVT::v8i32: + case MVT::v16i16: + return getTargetVShiftNode(X86ISD::VSRAI, dl, VT, R, BaseShAmt, DAG); + } + case ISD::SRL: + switch (VT.getSimpleVT().SimpleTy) { + default: return SDValue(); + case MVT::v2i64: + case MVT::v4i32: + case MVT::v8i16: + case MVT::v4i64: + case MVT::v8i32: + case MVT::v16i16: + return getTargetVShiftNode(X86ISD::VSRLI, dl, VT, R, BaseShAmt, DAG); + } + } + } + } + + // Special case in 32-bit mode, where i64 is expanded into high and low parts. + if (!Subtarget->is64Bit() && + (VT == MVT::v2i64 || (Subtarget->hasInt256() && VT == MVT::v4i64)) && + Amt.getOpcode() == ISD::BITCAST && + Amt.getOperand(0).getOpcode() == ISD::BUILD_VECTOR) { + Amt = Amt.getOperand(0); + unsigned Ratio = Amt.getValueType().getVectorNumElements() / + VT.getVectorNumElements(); + std::vector<SDValue> Vals(Ratio); + for (unsigned i = 0; i != Ratio; ++i) + Vals[i] = Amt.getOperand(i); + for (unsigned i = Ratio; i != Amt.getNumOperands(); i += Ratio) { + for (unsigned j = 0; j != Ratio; ++j) + if (Vals[j] != Amt.getOperand(i + j)) + return SDValue(); + } + switch (Op.getOpcode()) { + default: + llvm_unreachable("Unknown shift opcode!"); + case ISD::SHL: + return DAG.getNode(X86ISD::VSHL, dl, VT, R, Op.getOperand(1)); + case ISD::SRL: + return DAG.getNode(X86ISD::VSRL, dl, VT, R, Op.getOperand(1)); + case ISD::SRA: + return DAG.getNode(X86ISD::VSRA, dl, VT, R, Op.getOperand(1)); + } + } + + return SDValue(); +} + +SDValue X86TargetLowering::LowerShift(SDValue Op, SelectionDAG &DAG) const { + + EVT VT = Op.getValueType(); + DebugLoc dl = Op.getDebugLoc(); + SDValue R = Op.getOperand(0); + SDValue Amt = Op.getOperand(1); + SDValue V; + + if (!Subtarget->hasSSE2()) + return SDValue(); + + V = LowerScalarImmediateShift(Op, DAG, Subtarget); + if (V.getNode()) + return V; + + V = LowerScalarVariableShift(Op, DAG, Subtarget); + if (V.getNode()) + return V; + + // AVX2 has VPSLLV/VPSRAV/VPSRLV. + if (Subtarget->hasInt256()) { + if (Op.getOpcode() == ISD::SRL && + (VT == MVT::v2i64 || VT == MVT::v4i32 || + VT == MVT::v4i64 || VT == MVT::v8i32)) + return Op; + if (Op.getOpcode() == ISD::SHL && + (VT == MVT::v2i64 || VT == MVT::v4i32 || + VT == MVT::v4i64 || VT == MVT::v8i32)) + return Op; + if (Op.getOpcode() == ISD::SRA && (VT == MVT::v4i32 || VT == MVT::v8i32)) + return Op; + } + // Lower SHL with variable shift amount. if (VT == MVT::v4i32 && Op->getOpcode() == ISD::SHL) { - Op = DAG.getNode(X86ISD::VSHLI, dl, VT, Op.getOperand(1), - DAG.getConstant(23, MVT::i32)); + Op = DAG.getNode(ISD::SHL, dl, VT, Amt, DAG.getConstant(23, VT)); - const uint32_t CV[] = { 0x3f800000U, 0x3f800000U, 0x3f800000U, 0x3f800000U}; - Constant *C = ConstantDataVector::get(*Context, CV); - SDValue CPIdx = DAG.getConstantPool(C, getPointerTy(), 16); - SDValue Addend = DAG.getLoad(VT, dl, DAG.getEntryNode(), CPIdx, - MachinePointerInfo::getConstantPool(), - false, false, false, 16); - - Op = DAG.getNode(ISD::ADD, dl, VT, Op, Addend); + Op = DAG.getNode(ISD::ADD, dl, VT, Op, DAG.getConstant(0x3f800000U, VT)); Op = DAG.getNode(ISD::BITCAST, dl, MVT::v4f32, Op); Op = DAG.getNode(ISD::FP_TO_SINT, dl, VT, Op); return DAG.getNode(ISD::MUL, dl, VT, Op, R); @@ -11160,8 +11850,7 @@ SDValue X86TargetLowering::LowerShift(SDValue Op, SelectionDAG &DAG) const { assert(Subtarget->hasSSE2() && "Need SSE2 for pslli/pcmpeq."); // a = a << 5; - Op = DAG.getNode(X86ISD::VSHLI, dl, MVT::v8i16, Op.getOperand(1), - DAG.getConstant(5, MVT::i32)); + Op = DAG.getNode(ISD::SHL, dl, VT, Amt, DAG.getConstant(5, VT)); Op = DAG.getNode(ISD::BITCAST, dl, VT, Op); // Turn 'a' into a mask suitable for VSELECT @@ -11336,9 +12025,9 @@ SDValue X86TargetLowering::LowerSIGN_EXTEND_INREG(SDValue Op, default: return SDValue(); case MVT::v8i32: case MVT::v16i16: - if (!Subtarget->hasAVX()) + if (!Subtarget->hasFp256()) return SDValue(); - if (!Subtarget->hasAVX2()) { + if (!Subtarget->hasInt256()) { // needs to be split unsigned NumElems = VT.getVectorNumElements(); @@ -11364,14 +12053,28 @@ SDValue X86TargetLowering::LowerSIGN_EXTEND_INREG(SDValue Op, // fall through case MVT::v4i32: case MVT::v8i16: { - SDValue Tmp1 = getTargetVShiftNode(X86ISD::VSHLI, dl, VT, - Op.getOperand(0), ShAmt, DAG); + // (sext (vzext x)) -> (vsext x) + SDValue Op0 = Op.getOperand(0); + SDValue Op00 = Op0.getOperand(0); + SDValue Tmp1; + // Hopefully, this VECTOR_SHUFFLE is just a VZEXT. + if (Op0.getOpcode() == ISD::BITCAST && + Op00.getOpcode() == ISD::VECTOR_SHUFFLE) + Tmp1 = LowerVectorIntExtend(Op00, DAG); + if (Tmp1.getNode()) { + SDValue Tmp1Op0 = Tmp1.getOperand(0); + assert(Tmp1Op0.getOpcode() == X86ISD::VZEXT && + "This optimization is invalid without a VZEXT."); + return DAG.getNode(X86ISD::VSEXT, dl, VT, Tmp1Op0.getOperand(0)); + } + + // If the above didn't work, then just use Shift-Left + Shift-Right. + Tmp1 = getTargetVShiftNode(X86ISD::VSHLI, dl, VT, Op0, ShAmt, DAG); return getTargetVShiftNode(X86ISD::VSRAI, dl, VT, Tmp1, ShAmt, DAG); } } } - static SDValue LowerMEMBARRIER(SDValue Op, const X86Subtarget *Subtarget, SelectionDAG &DAG) { DebugLoc dl = Op.getDebugLoc(); @@ -11456,7 +12159,6 @@ static SDValue LowerATOMIC_FENCE(SDValue Op, const X86Subtarget *Subtarget, return DAG.getNode(X86ISD::MEMBARRIER, dl, MVT::Other, Op.getOperand(0)); } - static SDValue LowerCMP_SWAP(SDValue Op, const X86Subtarget *Subtarget, SelectionDAG &DAG) { EVT T = Op.getValueType(); @@ -11595,6 +12297,43 @@ static SDValue LowerADDC_ADDE_SUBC_SUBE(SDValue Op, SelectionDAG &DAG) { Op.getOperand(1), Op.getOperand(2)); } +SDValue X86TargetLowering::LowerFSINCOS(SDValue Op, SelectionDAG &DAG) const { + assert(Subtarget->isTargetDarwin() && Subtarget->is64Bit()); + + // For MacOSX, we want to call an alternative entry point: __sincos_stret, + // which returns the values in two XMM registers. + DebugLoc dl = Op.getDebugLoc(); + SDValue Arg = Op.getOperand(0); + EVT ArgVT = Arg.getValueType(); + Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); + + ArgListTy Args; + ArgListEntry Entry; + + Entry.Node = Arg; + Entry.Ty = ArgTy; + Entry.isSExt = false; + Entry.isZExt = false; + Args.push_back(Entry); + + // Only optimize x86_64 for now. i386 is a bit messy. For f32, + // the small struct {f32, f32} is returned in (eax, edx). For f64, + // the results are returned via SRet in memory. + const char *LibcallName = (ArgVT == MVT::f64) + ? "__sincos_stret" : "__sincosf_stret"; + SDValue Callee = DAG.getExternalSymbol(LibcallName, getPointerTy()); + + StructType *RetTy = StructType::get(ArgTy, ArgTy, NULL); + TargetLowering:: + CallLoweringInfo CLI(DAG.getEntryNode(), RetTy, + false, false, false, false, 0, + CallingConv::C, /*isTaillCall=*/false, + /*doesNotRet=*/false, /*isReturnValueUsed*/true, + Callee, Args, DAG, dl); + std::pair<SDValue, SDValue> CallResult = LowerCallTo(CLI); + return CallResult.first; +} + /// LowerOperation - Provide custom lowering hooks for some operations. /// SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { @@ -11624,11 +12363,13 @@ SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { case ISD::SRL_PARTS: return LowerShiftParts(Op, DAG); case ISD::SINT_TO_FP: return LowerSINT_TO_FP(Op, DAG); case ISD::UINT_TO_FP: return LowerUINT_TO_FP(Op, DAG); - case ISD::TRUNCATE: return lowerTRUNCATE(Op, DAG); - case ISD::ZERO_EXTEND: return lowerZERO_EXTEND(Op, DAG); + case ISD::TRUNCATE: return LowerTRUNCATE(Op, DAG); + case ISD::ZERO_EXTEND: return LowerZERO_EXTEND(Op, DAG); + case ISD::SIGN_EXTEND: return LowerSIGN_EXTEND(Op, DAG); + case ISD::ANY_EXTEND: return LowerANY_EXTEND(Op, DAG); case ISD::FP_TO_SINT: return LowerFP_TO_SINT(Op, DAG); case ISD::FP_TO_UINT: return LowerFP_TO_UINT(Op, DAG); - case ISD::FP_EXTEND: return lowerFP_EXTEND(Op, DAG); + case ISD::FP_EXTEND: return LowerFP_EXTEND(Op, DAG); case ISD::FABS: return LowerFABS(Op, DAG); case ISD::FNEG: return LowerFNEG(Op, DAG); case ISD::FCOPYSIGN: return LowerFCOPYSIGN(Op, DAG); @@ -11674,6 +12415,8 @@ SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { case ISD::SUBE: return LowerADDC_ADDE_SUBC_SUBE(Op, DAG); case ISD::ADD: return LowerADD(Op, DAG); case ISD::SUB: return LowerSUB(Op, DAG); + case ISD::SDIV: return LowerSDIV(Op, DAG); + case ISD::FSINCOS: return LowerFSINCOS(Op, DAG); } } @@ -11727,6 +12470,7 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results, SelectionDAG &DAG) const { DebugLoc dl = N->getDebugLoc(); + const TargetLowering &TLI = DAG.getTargetLoweringInfo(); switch (N->getOpcode()) { default: llvm_unreachable("Do not know how to custom type legalize this operation!"); @@ -11760,7 +12504,8 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N, return; } case ISD::UINT_TO_FP: { - if (N->getOperand(0).getValueType() != MVT::v2i32 && + assert(Subtarget->hasSSE2() && "Requires at least SSE2!"); + if (N->getOperand(0).getValueType() != MVT::v2i32 || N->getValueType(0) != MVT::v2f32) return; SDValue ZExtIn = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::v2i64, @@ -11776,6 +12521,8 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N, return; } case ISD::FP_ROUND: { + if (!TLI.isTypeLegal(N->getOperand(0).getValueType())) + return; SDValue V = DAG.getNode(X86ISD::VFPROUND, dl, MVT::v4f32, N->getOperand(0)); Results.push_back(V); return; @@ -11942,13 +12689,16 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const { case X86ISD::ANDNP: return "X86ISD::ANDNP"; case X86ISD::PSIGN: return "X86ISD::PSIGN"; case X86ISD::BLENDV: return "X86ISD::BLENDV"; - case X86ISD::BLENDPW: return "X86ISD::BLENDPW"; - case X86ISD::BLENDPS: return "X86ISD::BLENDPS"; - case X86ISD::BLENDPD: return "X86ISD::BLENDPD"; + case X86ISD::BLENDI: return "X86ISD::BLENDI"; + case X86ISD::SUBUS: return "X86ISD::SUBUS"; case X86ISD::HADD: return "X86ISD::HADD"; case X86ISD::HSUB: return "X86ISD::HSUB"; case X86ISD::FHADD: return "X86ISD::FHADD"; case X86ISD::FHSUB: return "X86ISD::FHSUB"; + case X86ISD::UMAX: return "X86ISD::UMAX"; + case X86ISD::UMIN: return "X86ISD::UMIN"; + case X86ISD::SMAX: return "X86ISD::SMAX"; + case X86ISD::SMIN: return "X86ISD::SMIN"; case X86ISD::FMAX: return "X86ISD::FMAX"; case X86ISD::FMIN: return "X86ISD::FMIN"; case X86ISD::FMAXC: return "X86ISD::FMAXC"; @@ -12001,14 +12751,13 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const { case X86ISD::OR: return "X86ISD::OR"; case X86ISD::XOR: return "X86ISD::XOR"; case X86ISD::AND: return "X86ISD::AND"; - case X86ISD::ANDN: return "X86ISD::ANDN"; case X86ISD::BLSI: return "X86ISD::BLSI"; case X86ISD::BLSMSK: return "X86ISD::BLSMSK"; case X86ISD::BLSR: return "X86ISD::BLSR"; case X86ISD::MUL_IMM: return "X86ISD::MUL_IMM"; case X86ISD::PTEST: return "X86ISD::PTEST"; case X86ISD::TESTP: return "X86ISD::TESTP"; - case X86ISD::PALIGN: return "X86ISD::PALIGN"; + case X86ISD::PALIGNR: return "X86ISD::PALIGNR"; case X86ISD::PSHUFD: return "X86ISD::PSHUFD"; case X86ISD::PSHUFHW: return "X86ISD::PSHUFHW"; case X86ISD::PSHUFLW: return "X86ISD::PSHUFLW"; @@ -12039,6 +12788,7 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const { case X86ISD::WIN_FTOL: return "X86ISD::WIN_FTOL"; case X86ISD::SAHF: return "X86ISD::SAHF"; case X86ISD::RDRAND: return "X86ISD::RDRAND"; + case X86ISD::RDSEED: return "X86ISD::RDSEED"; case X86ISD::FMADD: return "X86ISD::FMADD"; case X86ISD::FMSUB: return "X86ISD::FMSUB"; case X86ISD::FNMADD: return "X86ISD::FNMADD"; @@ -12047,6 +12797,7 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const { case X86ISD::FMSUBADD: return "X86ISD::FMSUBADD"; case X86ISD::PCMPESTRI: return "X86ISD::PCMPESTRI"; case X86ISD::PCMPISTRI: return "X86ISD::PCMPISTRI"; + case X86ISD::XTEST: return "X86ISD::XTEST"; } } @@ -12104,24 +12855,21 @@ bool X86TargetLowering::isLegalAddressingMode(const AddrMode &AM, return true; } - bool X86TargetLowering::isTruncateFree(Type *Ty1, Type *Ty2) const { if (!Ty1->isIntegerTy() || !Ty2->isIntegerTy()) return false; unsigned NumBits1 = Ty1->getPrimitiveSizeInBits(); unsigned NumBits2 = Ty2->getPrimitiveSizeInBits(); - if (NumBits1 <= NumBits2) - return false; - return true; + return NumBits1 > NumBits2; } bool X86TargetLowering::isLegalICmpImmediate(int64_t Imm) const { - return Imm == (int32_t)Imm; + return isInt<32>(Imm); } bool X86TargetLowering::isLegalAddImmediate(int64_t Imm) const { // Can also use sub to handle negated immediates. - return Imm == (int32_t)Imm; + return isInt<32>(Imm); } bool X86TargetLowering::isTruncateFree(EVT VT1, EVT VT2) const { @@ -12129,9 +12877,7 @@ bool X86TargetLowering::isTruncateFree(EVT VT1, EVT VT2) const { return false; unsigned NumBits1 = VT1.getSizeInBits(); unsigned NumBits2 = VT2.getSizeInBits(); - if (NumBits1 <= NumBits2) - return false; - return true; + return NumBits1 > NumBits2; } bool X86TargetLowering::isZExtFree(Type *Ty1, Type *Ty2) const { @@ -12144,6 +12890,30 @@ bool X86TargetLowering::isZExtFree(EVT VT1, EVT VT2) const { return VT1 == MVT::i32 && VT2 == MVT::i64 && Subtarget->is64Bit(); } +bool X86TargetLowering::isZExtFree(SDValue Val, EVT VT2) const { + EVT VT1 = Val.getValueType(); + if (isZExtFree(VT1, VT2)) + return true; + + if (Val.getOpcode() != ISD::LOAD) + return false; + + if (!VT1.isSimple() || !VT1.isInteger() || + !VT2.isSimple() || !VT2.isInteger()) + return false; + + switch (VT1.getSimpleVT().SimpleTy) { + default: break; + case MVT::i8: + case MVT::i16: + case MVT::i32: + // X86 has 8, 16, and 32-bit zero-extending loads. + return true; + } + + return false; +} + bool X86TargetLowering::isNarrowingProfitable(EVT VT1, EVT VT2) const { // i16 instructions are longer (0x66 prefix) and potentially slower. return !(VT1 == MVT::i32 && VT2 == MVT::i16); @@ -12164,15 +12934,15 @@ X86TargetLowering::isShuffleMaskLegal(const SmallVectorImpl<int> &M, return (VT.getVectorNumElements() == 2 || ShuffleVectorSDNode::isSplatMask(&M[0], VT) || isMOVLMask(M, VT) || - isSHUFPMask(M, VT, Subtarget->hasAVX()) || + isSHUFPMask(M, VT, Subtarget->hasFp256()) || isPSHUFDMask(M, VT) || - isPSHUFHWMask(M, VT, Subtarget->hasAVX2()) || - isPSHUFLWMask(M, VT, Subtarget->hasAVX2()) || + isPSHUFHWMask(M, VT, Subtarget->hasInt256()) || + isPSHUFLWMask(M, VT, Subtarget->hasInt256()) || isPALIGNRMask(M, VT, Subtarget) || - isUNPCKLMask(M, VT, Subtarget->hasAVX2()) || - isUNPCKHMask(M, VT, Subtarget->hasAVX2()) || - isUNPCKL_v_undef_Mask(M, VT, Subtarget->hasAVX2()) || - isUNPCKH_v_undef_Mask(M, VT, Subtarget->hasAVX2())); + isUNPCKLMask(M, VT, Subtarget->hasInt256()) || + isUNPCKHMask(M, VT, Subtarget->hasInt256()) || + isUNPCKL_v_undef_Mask(M, VT, Subtarget->hasInt256()) || + isUNPCKH_v_undef_Mask(M, VT, Subtarget->hasInt256())); } bool @@ -12185,8 +12955,8 @@ X86TargetLowering::isVectorClearMaskLegal(const SmallVectorImpl<int> &Mask, if (NumElts == 4 && VT.is128BitVector()) { return (isMOVLMask(Mask, VT) || isCommutedMOVLMask(Mask, VT, true) || - isSHUFPMask(Mask, VT, Subtarget->hasAVX()) || - isSHUFPMask(Mask, VT, Subtarget->hasAVX(), /* Commuted */ true)); + isSHUFPMask(Mask, VT, Subtarget->hasFp256()) || + isSHUFPMask(Mask, VT, Subtarget->hasFp256(), /* Commuted */ true)); } return false; } @@ -12379,13 +13149,16 @@ static unsigned getPseudoCMOVOpc(EVT VT) { // to // // ... -// EAX = LOAD MI.addr +// t1 = LOAD MI.addr // loop: -// t1 = OP MI.val, EAX -// LCMPXCHG [MI.addr], t1, [EAX is implicitly used & defined] +// t4 = phi(t1, t3 / loop) +// t2 = OP MI.val, t4 +// EAX = t4 +// LCMPXCHG [MI.addr], t2, [EAX is implicitly used & defined] +// t3 = EAX // JNE loop // sink: -// dst = EAX +// dst = t3 // ... MachineBasicBlock * X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, @@ -12400,7 +13173,7 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, MachineFunction::iterator I = MBB; ++I; - assert(MI->getNumOperands() <= X86::AddrNumOperands + 2 && + assert(MI->getNumOperands() <= X86::AddrNumOperands + 4 && "Unexpected number of operands"); assert(MI->hasOneMemOperand() && @@ -12422,7 +13195,11 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, const TargetRegisterClass *RC = MRI.getRegClass(DstReg); MVT::SimpleValueType VT = *RC->vt_begin(); - unsigned AccPhyReg = getX86SubSuperRegister(X86::EAX, VT); + unsigned t1 = MRI.createVirtualRegister(RC); + unsigned t2 = MRI.createVirtualRegister(RC); + unsigned t3 = MRI.createVirtualRegister(RC); + unsigned t4 = MRI.createVirtualRegister(RC); + unsigned PhyReg = getX86SubSuperRegister(X86::EAX, VT); unsigned LCMPXCHGOpc = getCmpXChgOpcode(VT); unsigned LOADOpc = getLoadOpcode(VT); @@ -12430,12 +13207,16 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, // For the atomic load-arith operator, we generate // // thisMBB: - // EAX = LOAD [MI.addr] + // t1 = LOAD [MI.addr] // mainMBB: + // t4 = phi(t1 / thisMBB, t3 / mainMBB) // t1 = OP MI.val, EAX + // EAX = t4 // LCMPXCHG [MI.addr], t1, [EAX is implicitly used & defined] + // t3 = EAX // JNE mainMBB // sinkMBB: + // dst = t3 MachineBasicBlock *thisMBB = MBB; MachineBasicBlock *mainMBB = MF->CreateMachineBasicBlock(BB); @@ -12451,23 +13232,34 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, sinkMBB->transferSuccessorsAndUpdatePHIs(MBB); // thisMBB: - MIB = BuildMI(thisMBB, DL, TII->get(LOADOpc), AccPhyReg); - for (unsigned i = 0; i < X86::AddrNumOperands; ++i) - MIB.addOperand(MI->getOperand(MemOpndSlot + i)); - MIB.setMemRefs(MMOBegin, MMOEnd); + MIB = BuildMI(thisMBB, DL, TII->get(LOADOpc), t1); + for (unsigned i = 0; i < X86::AddrNumOperands; ++i) { + MachineOperand NewMO = MI->getOperand(MemOpndSlot + i); + if (NewMO.isReg()) + NewMO.setIsKill(false); + MIB.addOperand(NewMO); + } + for (MachineInstr::mmo_iterator MMOI = MMOBegin; MMOI != MMOEnd; ++MMOI) { + unsigned flags = (*MMOI)->getFlags(); + flags = (flags & ~MachineMemOperand::MOStore) | MachineMemOperand::MOLoad; + MachineMemOperand *MMO = + MF->getMachineMemOperand((*MMOI)->getPointerInfo(), flags, + (*MMOI)->getSize(), + (*MMOI)->getBaseAlignment(), + (*MMOI)->getTBAAInfo(), + (*MMOI)->getRanges()); + MIB.addMemOperand(MMO); + } thisMBB->addSuccessor(mainMBB); // mainMBB: MachineBasicBlock *origMainMBB = mainMBB; - mainMBB->addLiveIn(AccPhyReg); - // Copy AccPhyReg as it is used more than once. - unsigned AccReg = MRI.createVirtualRegister(RC); - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), AccReg) - .addReg(AccPhyReg); + // Add a PHI. + MachineInstr *Phi = BuildMI(mainMBB, DL, TII->get(X86::PHI), t4) + .addReg(t1).addMBB(thisMBB).addReg(t3).addMBB(mainMBB); - unsigned t1 = MRI.createVirtualRegister(RC); unsigned Opc = MI->getOpcode(); switch (Opc) { default: @@ -12485,20 +13277,20 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, case X86::ATOMXOR32: case X86::ATOMXOR64: { unsigned ARITHOpc = getNonAtomicOpcode(Opc); - BuildMI(mainMBB, DL, TII->get(ARITHOpc), t1).addReg(SrcReg) - .addReg(AccReg); + BuildMI(mainMBB, DL, TII->get(ARITHOpc), t2).addReg(SrcReg) + .addReg(t4); break; } case X86::ATOMNAND8: case X86::ATOMNAND16: case X86::ATOMNAND32: case X86::ATOMNAND64: { - unsigned t2 = MRI.createVirtualRegister(RC); + unsigned Tmp = MRI.createVirtualRegister(RC); unsigned NOTOpc; unsigned ANDOpc = getNonAtomicOpcodeWithExtraOpc(Opc, NOTOpc); - BuildMI(mainMBB, DL, TII->get(ANDOpc), t2).addReg(SrcReg) - .addReg(AccReg); - BuildMI(mainMBB, DL, TII->get(NOTOpc), t1).addReg(t2); + BuildMI(mainMBB, DL, TII->get(ANDOpc), Tmp).addReg(SrcReg) + .addReg(t4); + BuildMI(mainMBB, DL, TII->get(NOTOpc), t2).addReg(Tmp); break; } case X86::ATOMMAX8: @@ -12522,20 +13314,22 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, BuildMI(mainMBB, DL, TII->get(CMPOpc)) .addReg(SrcReg) - .addReg(AccReg); + .addReg(t4); if (Subtarget->hasCMov()) { if (VT != MVT::i8) { // Native support - BuildMI(mainMBB, DL, TII->get(CMOVOpc), t1) + BuildMI(mainMBB, DL, TII->get(CMOVOpc), t2) .addReg(SrcReg) - .addReg(AccReg); + .addReg(t4); } else { // Promote i8 to i32 to use CMOV32 - const TargetRegisterClass *RC32 = getRegClassFor(MVT::i32); + const TargetRegisterInfo* TRI = getTargetMachine().getRegisterInfo(); + const TargetRegisterClass *RC32 = + TRI->getSubClassWithSubReg(getRegClassFor(MVT::i32), X86::sub_8bit); unsigned SrcReg32 = MRI.createVirtualRegister(RC32); unsigned AccReg32 = MRI.createVirtualRegister(RC32); - unsigned t2 = MRI.createVirtualRegister(RC32); + unsigned Tmp = MRI.createVirtualRegister(RC32); unsigned Undef = MRI.createVirtualRegister(RC32); BuildMI(mainMBB, DL, TII->get(TargetOpcode::IMPLICIT_DEF), Undef); @@ -12546,15 +13340,15 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, .addImm(X86::sub_8bit); BuildMI(mainMBB, DL, TII->get(TargetOpcode::INSERT_SUBREG), AccReg32) .addReg(Undef) - .addReg(AccReg) + .addReg(t4) .addImm(X86::sub_8bit); - BuildMI(mainMBB, DL, TII->get(CMOVOpc), t2) + BuildMI(mainMBB, DL, TII->get(CMOVOpc), Tmp) .addReg(SrcReg32) .addReg(AccReg32); - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), t1) - .addReg(t2, 0, X86::sub_8bit); + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), t2) + .addReg(Tmp, 0, X86::sub_8bit); } } else { // Use pseudo select and lower them. @@ -12563,36 +13357,47 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, unsigned SelOpc = getPseudoCMOVOpc(VT); X86::CondCode CC = X86::getCondFromCMovOpc(CMOVOpc); assert(CC != X86::COND_INVALID && "Invalid atomic-load-op transformation!"); - MIB = BuildMI(mainMBB, DL, TII->get(SelOpc), t1) - .addReg(SrcReg).addReg(AccReg) + MIB = BuildMI(mainMBB, DL, TII->get(SelOpc), t2) + .addReg(SrcReg).addReg(t4) .addImm(CC); mainMBB = EmitLoweredSelect(MIB, mainMBB); + // Replace the original PHI node as mainMBB is changed after CMOV + // lowering. + BuildMI(*origMainMBB, Phi, DL, TII->get(X86::PHI), t4) + .addReg(t1).addMBB(thisMBB).addReg(t3).addMBB(mainMBB); + Phi->eraseFromParent(); } break; } } - // Copy AccPhyReg back from virtual register. - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), AccPhyReg) - .addReg(AccReg); + // Copy PhyReg back from virtual register. + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), PhyReg) + .addReg(t4); MIB = BuildMI(mainMBB, DL, TII->get(LCMPXCHGOpc)); - for (unsigned i = 0; i < X86::AddrNumOperands; ++i) - MIB.addOperand(MI->getOperand(MemOpndSlot + i)); - MIB.addReg(t1); + for (unsigned i = 0; i < X86::AddrNumOperands; ++i) { + MachineOperand NewMO = MI->getOperand(MemOpndSlot + i); + if (NewMO.isReg()) + NewMO.setIsKill(false); + MIB.addOperand(NewMO); + } + MIB.addReg(t2); MIB.setMemRefs(MMOBegin, MMOEnd); + // Copy PhyReg back to virtual register. + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), t3) + .addReg(PhyReg); + BuildMI(mainMBB, DL, TII->get(X86::JNE_4)).addMBB(origMainMBB); mainMBB->addSuccessor(origMainMBB); mainMBB->addSuccessor(sinkMBB); // sinkMBB: - sinkMBB->addLiveIn(AccPhyReg); - BuildMI(*sinkMBB, sinkMBB->begin(), DL, TII->get(TargetOpcode::COPY), DstReg) - .addReg(AccPhyReg); + .addReg(t3); MI->eraseFromParent(); return sinkMBB; @@ -12609,15 +13414,24 @@ X86TargetLowering::EmitAtomicLoadArith(MachineInstr *MI, // to // // ... -// EAX = LOAD [MI.addr + 0] -// EDX = LOAD [MI.addr + 4] +// t1L = LOAD [MI.addr + 0] +// t1H = LOAD [MI.addr + 4] // loop: -// EBX = OP MI.val.lo, EAX -// ECX = OP MI.val.hi, EDX +// t4L = phi(t1L, t3L / loop) +// t4H = phi(t1H, t3H / loop) +// t2L = OP MI.val.lo, t4L +// t2H = OP MI.val.hi, t4H +// EAX = t4L +// EDX = t4H +// EBX = t2L +// ECX = t2H // LCMPXCHG8B [MI.addr], [ECX:EBX & EDX:EAX are implicitly used and EDX:EAX is implicitly defined] +// t3L = EAX +// t3H = EDX // JNE loop // sink: -// dst = EDX:EAX +// dstL = t3L +// dstH = t3H // ... MachineBasicBlock * X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, @@ -12632,7 +13446,7 @@ X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, MachineFunction::iterator I = MBB; ++I; - assert(MI->getNumOperands() <= X86::AddrNumOperands + 4 && + assert(MI->getNumOperands() <= X86::AddrNumOperands + 7 && "Unexpected number of operands"); assert(MI->hasOneMemOperand() && @@ -12658,20 +13472,37 @@ X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, const TargetRegisterClass *RC = &X86::GR32RegClass; const TargetRegisterClass *RC8 = &X86::GR8RegClass; + unsigned t1L = MRI.createVirtualRegister(RC); + unsigned t1H = MRI.createVirtualRegister(RC); + unsigned t2L = MRI.createVirtualRegister(RC); + unsigned t2H = MRI.createVirtualRegister(RC); + unsigned t3L = MRI.createVirtualRegister(RC); + unsigned t3H = MRI.createVirtualRegister(RC); + unsigned t4L = MRI.createVirtualRegister(RC); + unsigned t4H = MRI.createVirtualRegister(RC); + unsigned LCMPXCHGOpc = X86::LCMPXCHG8B; unsigned LOADOpc = X86::MOV32rm; // For the atomic load-arith operator, we generate // // thisMBB: - // EAX = LOAD [MI.addr + 0] - // EDX = LOAD [MI.addr + 4] + // t1L = LOAD [MI.addr + 0] + // t1H = LOAD [MI.addr + 4] // mainMBB: - // EBX = OP MI.vallo, EAX - // ECX = OP MI.valhi, EDX + // t4L = phi(t1L / thisMBB, t3L / mainMBB) + // t4H = phi(t1H / thisMBB, t3H / mainMBB) + // t2L = OP MI.val.lo, t4L + // t2H = OP MI.val.hi, t4H + // EBX = t2L + // ECX = t2H // LCMPXCHG8B [MI.addr], [ECX:EBX & EDX:EAX are implicitly used and EDX:EAX is implicitly defined] - // JNE mainMBB + // t3L = EAX + // t3H = EDX + // JNE loop // sinkMBB: + // dstL = t3L + // dstH = t3H MachineBasicBlock *thisMBB = MBB; MachineBasicBlock *mainMBB = MF->CreateMachineBasicBlock(BB); @@ -12688,35 +13519,50 @@ X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, // thisMBB: // Lo - MIB = BuildMI(thisMBB, DL, TII->get(LOADOpc), X86::EAX); - for (unsigned i = 0; i < X86::AddrNumOperands; ++i) - MIB.addOperand(MI->getOperand(MemOpndSlot + i)); - MIB.setMemRefs(MMOBegin, MMOEnd); + MIB = BuildMI(thisMBB, DL, TII->get(LOADOpc), t1L); + for (unsigned i = 0; i < X86::AddrNumOperands; ++i) { + MachineOperand NewMO = MI->getOperand(MemOpndSlot + i); + if (NewMO.isReg()) + NewMO.setIsKill(false); + MIB.addOperand(NewMO); + } + for (MachineInstr::mmo_iterator MMOI = MMOBegin; MMOI != MMOEnd; ++MMOI) { + unsigned flags = (*MMOI)->getFlags(); + flags = (flags & ~MachineMemOperand::MOStore) | MachineMemOperand::MOLoad; + MachineMemOperand *MMO = + MF->getMachineMemOperand((*MMOI)->getPointerInfo(), flags, + (*MMOI)->getSize(), + (*MMOI)->getBaseAlignment(), + (*MMOI)->getTBAAInfo(), + (*MMOI)->getRanges()); + MIB.addMemOperand(MMO); + }; + MachineInstr *LowMI = MIB; + // Hi - MIB = BuildMI(thisMBB, DL, TII->get(LOADOpc), X86::EDX); + MIB = BuildMI(thisMBB, DL, TII->get(LOADOpc), t1H); for (unsigned i = 0; i < X86::AddrNumOperands; ++i) { - if (i == X86::AddrDisp) + if (i == X86::AddrDisp) { MIB.addDisp(MI->getOperand(MemOpndSlot + i), 4); // 4 == sizeof(i32) - else - MIB.addOperand(MI->getOperand(MemOpndSlot + i)); + } else { + MachineOperand NewMO = MI->getOperand(MemOpndSlot + i); + if (NewMO.isReg()) + NewMO.setIsKill(false); + MIB.addOperand(NewMO); + } } - MIB.setMemRefs(MMOBegin, MMOEnd); + MIB.setMemRefs(LowMI->memoperands_begin(), LowMI->memoperands_end()); thisMBB->addSuccessor(mainMBB); // mainMBB: MachineBasicBlock *origMainMBB = mainMBB; - mainMBB->addLiveIn(X86::EAX); - mainMBB->addLiveIn(X86::EDX); - - // Copy EDX:EAX as they are used more than once. - unsigned LoReg = MRI.createVirtualRegister(RC); - unsigned HiReg = MRI.createVirtualRegister(RC); - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), LoReg).addReg(X86::EAX); - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), HiReg).addReg(X86::EDX); - unsigned t1L = MRI.createVirtualRegister(RC); - unsigned t1H = MRI.createVirtualRegister(RC); + // Add PHIs. + MachineInstr *PhiL = BuildMI(mainMBB, DL, TII->get(X86::PHI), t4L) + .addReg(t1L).addMBB(thisMBB).addReg(t3L).addMBB(mainMBB); + MachineInstr *PhiH = BuildMI(mainMBB, DL, TII->get(X86::PHI), t4H) + .addReg(t1H).addMBB(thisMBB).addReg(t3H).addMBB(mainMBB); unsigned Opc = MI->getOpcode(); switch (Opc) { @@ -12729,19 +13575,23 @@ X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, case X86::ATOMSUB6432: { unsigned HiOpc; unsigned LoOpc = getNonAtomic6432Opcode(Opc, HiOpc); - BuildMI(mainMBB, DL, TII->get(LoOpc), t1L).addReg(LoReg).addReg(SrcLoReg); - BuildMI(mainMBB, DL, TII->get(HiOpc), t1H).addReg(HiReg).addReg(SrcHiReg); + BuildMI(mainMBB, DL, TII->get(LoOpc), t2L).addReg(t4L) + .addReg(SrcLoReg); + BuildMI(mainMBB, DL, TII->get(HiOpc), t2H).addReg(t4H) + .addReg(SrcHiReg); break; } case X86::ATOMNAND6432: { unsigned HiOpc, NOTOpc; unsigned LoOpc = getNonAtomic6432OpcodeWithExtraOpc(Opc, HiOpc, NOTOpc); - unsigned t2L = MRI.createVirtualRegister(RC); - unsigned t2H = MRI.createVirtualRegister(RC); - BuildMI(mainMBB, DL, TII->get(LoOpc), t2L).addReg(SrcLoReg).addReg(LoReg); - BuildMI(mainMBB, DL, TII->get(HiOpc), t2H).addReg(SrcHiReg).addReg(HiReg); - BuildMI(mainMBB, DL, TII->get(NOTOpc), t1L).addReg(t2L); - BuildMI(mainMBB, DL, TII->get(NOTOpc), t1H).addReg(t2H); + unsigned TmpL = MRI.createVirtualRegister(RC); + unsigned TmpH = MRI.createVirtualRegister(RC); + BuildMI(mainMBB, DL, TII->get(LoOpc), TmpL).addReg(SrcLoReg) + .addReg(t4L); + BuildMI(mainMBB, DL, TII->get(HiOpc), TmpH).addReg(SrcHiReg) + .addReg(t4H); + BuildMI(mainMBB, DL, TII->get(NOTOpc), t2L).addReg(TmpL); + BuildMI(mainMBB, DL, TII->get(NOTOpc), t2H).addReg(TmpH); break; } case X86::ATOMMAX6432: @@ -12757,12 +13607,12 @@ X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, unsigned cc = MRI.createVirtualRegister(RC); // cl := cmp src_lo, lo BuildMI(mainMBB, DL, TII->get(X86::CMP32rr)) - .addReg(SrcLoReg).addReg(LoReg); + .addReg(SrcLoReg).addReg(t4L); BuildMI(mainMBB, DL, TII->get(LoOpc), cL); BuildMI(mainMBB, DL, TII->get(X86::MOVZX32rr8), cL32).addReg(cL); // ch := cmp src_hi, hi BuildMI(mainMBB, DL, TII->get(X86::CMP32rr)) - .addReg(SrcHiReg).addReg(HiReg); + .addReg(SrcHiReg).addReg(t4H); BuildMI(mainMBB, DL, TII->get(HiOpc), cH); BuildMI(mainMBB, DL, TII->get(X86::MOVZX32rr8), cH32).addReg(cH); // cc := if (src_hi == hi) ? cl : ch; @@ -12777,58 +13627,74 @@ X86TargetLowering::EmitAtomicLoadArith6432(MachineInstr *MI, } BuildMI(mainMBB, DL, TII->get(X86::TEST32rr)).addReg(cc).addReg(cc); if (Subtarget->hasCMov()) { - BuildMI(mainMBB, DL, TII->get(X86::CMOVNE32rr), t1L) - .addReg(SrcLoReg).addReg(LoReg); - BuildMI(mainMBB, DL, TII->get(X86::CMOVNE32rr), t1H) - .addReg(SrcHiReg).addReg(HiReg); + BuildMI(mainMBB, DL, TII->get(X86::CMOVNE32rr), t2L) + .addReg(SrcLoReg).addReg(t4L); + BuildMI(mainMBB, DL, TII->get(X86::CMOVNE32rr), t2H) + .addReg(SrcHiReg).addReg(t4H); } else { - MIB = BuildMI(mainMBB, DL, TII->get(X86::CMOV_GR32), t1L) - .addReg(SrcLoReg).addReg(LoReg) + MIB = BuildMI(mainMBB, DL, TII->get(X86::CMOV_GR32), t2L) + .addReg(SrcLoReg).addReg(t4L) .addImm(X86::COND_NE); mainMBB = EmitLoweredSelect(MIB, mainMBB); - MIB = BuildMI(mainMBB, DL, TII->get(X86::CMOV_GR32), t1H) - .addReg(SrcHiReg).addReg(HiReg) + // As the lowered CMOV won't clobber EFLAGS, we could reuse it for the + // 2nd CMOV lowering. + mainMBB->addLiveIn(X86::EFLAGS); + MIB = BuildMI(mainMBB, DL, TII->get(X86::CMOV_GR32), t2H) + .addReg(SrcHiReg).addReg(t4H) .addImm(X86::COND_NE); mainMBB = EmitLoweredSelect(MIB, mainMBB); + // Replace the original PHI node as mainMBB is changed after CMOV + // lowering. + BuildMI(*origMainMBB, PhiL, DL, TII->get(X86::PHI), t4L) + .addReg(t1L).addMBB(thisMBB).addReg(t3L).addMBB(mainMBB); + BuildMI(*origMainMBB, PhiH, DL, TII->get(X86::PHI), t4H) + .addReg(t1H).addMBB(thisMBB).addReg(t3H).addMBB(mainMBB); + PhiL->eraseFromParent(); + PhiH->eraseFromParent(); } break; } case X86::ATOMSWAP6432: { unsigned HiOpc; unsigned LoOpc = getNonAtomic6432Opcode(Opc, HiOpc); - BuildMI(mainMBB, DL, TII->get(LoOpc), t1L).addReg(SrcLoReg); - BuildMI(mainMBB, DL, TII->get(HiOpc), t1H).addReg(SrcHiReg); + BuildMI(mainMBB, DL, TII->get(LoOpc), t2L).addReg(SrcLoReg); + BuildMI(mainMBB, DL, TII->get(HiOpc), t2H).addReg(SrcHiReg); break; } } // Copy EDX:EAX back from HiReg:LoReg - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::EAX).addReg(LoReg); - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::EDX).addReg(HiReg); + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::EAX).addReg(t4L); + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::EDX).addReg(t4H); // Copy ECX:EBX from t1H:t1L - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::EBX).addReg(t1L); - BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::ECX).addReg(t1H); + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::EBX).addReg(t2L); + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), X86::ECX).addReg(t2H); MIB = BuildMI(mainMBB, DL, TII->get(LCMPXCHGOpc)); - for (unsigned i = 0; i < X86::AddrNumOperands; ++i) - MIB.addOperand(MI->getOperand(MemOpndSlot + i)); + for (unsigned i = 0; i < X86::AddrNumOperands; ++i) { + MachineOperand NewMO = MI->getOperand(MemOpndSlot + i); + if (NewMO.isReg()) + NewMO.setIsKill(false); + MIB.addOperand(NewMO); + } MIB.setMemRefs(MMOBegin, MMOEnd); + // Copy EDX:EAX back to t3H:t3L + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), t3L).addReg(X86::EAX); + BuildMI(mainMBB, DL, TII->get(TargetOpcode::COPY), t3H).addReg(X86::EDX); + BuildMI(mainMBB, DL, TII->get(X86::JNE_4)).addMBB(origMainMBB); mainMBB->addSuccessor(origMainMBB); mainMBB->addSuccessor(sinkMBB); // sinkMBB: - sinkMBB->addLiveIn(X86::EAX); - sinkMBB->addLiveIn(X86::EDX); - BuildMI(*sinkMBB, sinkMBB->begin(), DL, TII->get(TargetOpcode::COPY), DstLoReg) - .addReg(X86::EAX); + .addReg(t3L); BuildMI(*sinkMBB, sinkMBB->begin(), DL, TII->get(TargetOpcode::COPY), DstHiReg) - .addReg(X86::EDX); + .addReg(t3H); MI->eraseFromParent(); return sinkMBB; @@ -13239,7 +14105,7 @@ X86TargetLowering::EmitVAStartSaveXMMRegsWithCustomInserter( MBB->addSuccessor(EndMBB); } - unsigned MOVOpc = Subtarget->hasAVX() ? X86::VMOVAPSmr : X86::MOVAPSmr; + unsigned MOVOpc = Subtarget->hasFp256() ? X86::VMOVAPSmr : X86::MOVAPSmr; // In the XMM save block, save all the XMM argument registers. for (int i = 3, e = MI->getNumOperands(); i != e; ++i) { int64_t Offset = (i - 3) * 16 + VarArgsFPOffset; @@ -14203,6 +15069,18 @@ static SDValue PerformShuffleCombine256(SDNode *N, SelectionDAG &DAG, Ld->getAlignment(), false/*isVolatile*/, true/*ReadMem*/, false/*WriteMem*/); + + // Make sure the newly-created LOAD is in the same position as Ld in + // terms of dependency. We create a TokenFactor for Ld and ResNode, + // and update uses of Ld's output chain to use the TokenFactor. + if (Ld->hasAnyUseOfValue(1)) { + SDValue NewChain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, + SDValue(Ld, 1), SDValue(ResNode.getNode(), 1)); + DAG.ReplaceAllUsesOfValueWith(SDValue(Ld, 1), NewChain); + DAG.UpdateNodeOperands(NewChain.getNode(), SDValue(Ld, 1), + SDValue(ResNode.getNode(), 1)); + } + return DAG.getNode(ISD::BITCAST, dl, VT, ResNode); } } @@ -14248,7 +15126,7 @@ static SDValue PerformShuffleCombine(SDNode *N, SelectionDAG &DAG, return SDValue(); // Combine 256-bit vector shuffles. This is only profitable when in AVX mode - if (Subtarget->hasAVX() && VT.is256BitVector() && + if (Subtarget->hasFp256() && VT.is256BitVector() && N->getOpcode() == ISD::VECTOR_SHUFFLE) return PerformShuffleCombine256(N, DAG, DCI, Subtarget); @@ -14266,127 +15144,12 @@ static SDValue PerformShuffleCombine(SDNode *N, SelectionDAG &DAG, return EltsFromConsecutiveLoads(VT, Elts, dl, DAG); } - /// PerformTruncateCombine - Converts truncate operation to /// a sequence of vector shuffle operations. /// It is possible when we truncate 256-bit vector to 128-bit vector static SDValue PerformTruncateCombine(SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const X86Subtarget *Subtarget) { - if (!DCI.isBeforeLegalizeOps()) - return SDValue(); - - if (!Subtarget->hasAVX()) - return SDValue(); - - EVT VT = N->getValueType(0); - SDValue Op = N->getOperand(0); - EVT OpVT = Op.getValueType(); - DebugLoc dl = N->getDebugLoc(); - - if ((VT == MVT::v4i32) && (OpVT == MVT::v4i64)) { - - if (Subtarget->hasAVX2()) { - // AVX2: v4i64 -> v4i32 - - // VPERMD - static const int ShufMask[] = {0, 2, 4, 6, -1, -1, -1, -1}; - - Op = DAG.getNode(ISD::BITCAST, dl, MVT::v8i32, Op); - Op = DAG.getVectorShuffle(MVT::v8i32, dl, Op, DAG.getUNDEF(MVT::v8i32), - ShufMask); - - return DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, VT, Op, - DAG.getIntPtrConstant(0)); - } - - // AVX: v4i64 -> v4i32 - SDValue OpLo = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v2i64, Op, - DAG.getIntPtrConstant(0)); - - SDValue OpHi = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v2i64, Op, - DAG.getIntPtrConstant(2)); - - OpLo = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpLo); - OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpHi); - - // PSHUFD - static const int ShufMask1[] = {0, 2, 0, 0}; - - SDValue Undef = DAG.getUNDEF(VT); - OpLo = DAG.getVectorShuffle(VT, dl, OpLo, Undef, ShufMask1); - OpHi = DAG.getVectorShuffle(VT, dl, OpHi, Undef, ShufMask1); - - // MOVLHPS - static const int ShufMask2[] = {0, 1, 4, 5}; - - return DAG.getVectorShuffle(VT, dl, OpLo, OpHi, ShufMask2); - } - - if ((VT == MVT::v8i16) && (OpVT == MVT::v8i32)) { - - if (Subtarget->hasAVX2()) { - // AVX2: v8i32 -> v8i16 - - Op = DAG.getNode(ISD::BITCAST, dl, MVT::v32i8, Op); - - // PSHUFB - SmallVector<SDValue,32> pshufbMask; - for (unsigned i = 0; i < 2; ++i) { - pshufbMask.push_back(DAG.getConstant(0x0, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0x1, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0x4, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0x5, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0x8, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0x9, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0xc, MVT::i8)); - pshufbMask.push_back(DAG.getConstant(0xd, MVT::i8)); - for (unsigned j = 0; j < 8; ++j) - pshufbMask.push_back(DAG.getConstant(0x80, MVT::i8)); - } - SDValue BV = DAG.getNode(ISD::BUILD_VECTOR, dl, MVT::v32i8, - &pshufbMask[0], 32); - Op = DAG.getNode(X86ISD::PSHUFB, dl, MVT::v32i8, Op, BV); - - Op = DAG.getNode(ISD::BITCAST, dl, MVT::v4i64, Op); - - static const int ShufMask[] = {0, 2, -1, -1}; - Op = DAG.getVectorShuffle(MVT::v4i64, dl, Op, DAG.getUNDEF(MVT::v4i64), - &ShufMask[0]); - - Op = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v2i64, Op, - DAG.getIntPtrConstant(0)); - - return DAG.getNode(ISD::BITCAST, dl, VT, Op); - } - - SDValue OpLo = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v4i32, Op, - DAG.getIntPtrConstant(0)); - - SDValue OpHi = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, MVT::v4i32, Op, - DAG.getIntPtrConstant(4)); - - OpLo = DAG.getNode(ISD::BITCAST, dl, MVT::v16i8, OpLo); - OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v16i8, OpHi); - - // PSHUFB - static const int ShufMask1[] = {0, 1, 4, 5, 8, 9, 12, 13, - -1, -1, -1, -1, -1, -1, -1, -1}; - - SDValue Undef = DAG.getUNDEF(MVT::v16i8); - OpLo = DAG.getVectorShuffle(MVT::v16i8, dl, OpLo, Undef, ShufMask1); - OpHi = DAG.getVectorShuffle(MVT::v16i8, dl, OpHi, Undef, ShufMask1); - - OpLo = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpLo); - OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpHi); - - // MOVLHPS - static const int ShufMask2[] = {0, 1, 4, 5}; - - SDValue res = DAG.getVectorShuffle(MVT::v4i32, dl, OpLo, OpHi, ShufMask2); - return DAG.getNode(ISD::BITCAST, dl, MVT::v8i16, res); - } - return SDValue(); } @@ -14581,6 +15344,76 @@ static SDValue PerformEXTRACT_VECTOR_ELTCombine(SDNode *N, SelectionDAG &DAG, return SDValue(); } +/// \brief Matches a VSELECT onto min/max or return 0 if the node doesn't match. +static unsigned matchIntegerMINMAX(SDValue Cond, EVT VT, SDValue LHS, + SDValue RHS, SelectionDAG &DAG, + const X86Subtarget *Subtarget) { + if (!VT.isVector()) + return 0; + + switch (VT.getSimpleVT().SimpleTy) { + default: return 0; + case MVT::v32i8: + case MVT::v16i16: + case MVT::v8i32: + if (!Subtarget->hasAVX2()) + return 0; + case MVT::v16i8: + case MVT::v8i16: + case MVT::v4i32: + if (!Subtarget->hasSSE2()) + return 0; + } + + // SSE2 has only a small subset of the operations. + bool hasUnsigned = Subtarget->hasSSE41() || + (Subtarget->hasSSE2() && VT == MVT::v16i8); + bool hasSigned = Subtarget->hasSSE41() || + (Subtarget->hasSSE2() && VT == MVT::v8i16); + + ISD::CondCode CC = cast<CondCodeSDNode>(Cond.getOperand(2))->get(); + + // Check for x CC y ? x : y. + if (DAG.isEqualTo(LHS, Cond.getOperand(0)) && + DAG.isEqualTo(RHS, Cond.getOperand(1))) { + switch (CC) { + default: break; + case ISD::SETULT: + case ISD::SETULE: + return hasUnsigned ? X86ISD::UMIN : 0; + case ISD::SETUGT: + case ISD::SETUGE: + return hasUnsigned ? X86ISD::UMAX : 0; + case ISD::SETLT: + case ISD::SETLE: + return hasSigned ? X86ISD::SMIN : 0; + case ISD::SETGT: + case ISD::SETGE: + return hasSigned ? X86ISD::SMAX : 0; + } + // Check for x CC y ? y : x -- a min/max with reversed arms. + } else if (DAG.isEqualTo(LHS, Cond.getOperand(1)) && + DAG.isEqualTo(RHS, Cond.getOperand(0))) { + switch (CC) { + default: break; + case ISD::SETULT: + case ISD::SETULE: + return hasUnsigned ? X86ISD::UMAX : 0; + case ISD::SETUGT: + case ISD::SETUGE: + return hasUnsigned ? X86ISD::UMIN : 0; + case ISD::SETLT: + case ISD::SETLE: + return hasSigned ? X86ISD::SMAX : 0; + case ISD::SETGT: + case ISD::SETGE: + return hasSigned ? X86ISD::SMIN : 0; + } + } + + return 0; +} + /// PerformSELECTCombine - Do target-specific dag combines on SELECT and VSELECT /// nodes. static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG, @@ -14861,6 +15694,67 @@ static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG, } } + // Match VSELECTs into subs with unsigned saturation. + if (!DCI.isBeforeLegalize() && + N->getOpcode() == ISD::VSELECT && Cond.getOpcode() == ISD::SETCC && + // psubus is available in SSE2 and AVX2 for i8 and i16 vectors. + ((Subtarget->hasSSE2() && (VT == MVT::v16i8 || VT == MVT::v8i16)) || + (Subtarget->hasAVX2() && (VT == MVT::v32i8 || VT == MVT::v16i16)))) { + ISD::CondCode CC = cast<CondCodeSDNode>(Cond.getOperand(2))->get(); + + // Check if one of the arms of the VSELECT is a zero vector. If it's on the + // left side invert the predicate to simplify logic below. + SDValue Other; + if (ISD::isBuildVectorAllZeros(LHS.getNode())) { + Other = RHS; + CC = ISD::getSetCCInverse(CC, true); + } else if (ISD::isBuildVectorAllZeros(RHS.getNode())) { + Other = LHS; + } + + if (Other.getNode() && Other->getNumOperands() == 2 && + DAG.isEqualTo(Other->getOperand(0), Cond.getOperand(0))) { + SDValue OpLHS = Other->getOperand(0), OpRHS = Other->getOperand(1); + SDValue CondRHS = Cond->getOperand(1); + + // Look for a general sub with unsigned saturation first. + // x >= y ? x-y : 0 --> subus x, y + // x > y ? x-y : 0 --> subus x, y + if ((CC == ISD::SETUGE || CC == ISD::SETUGT) && + Other->getOpcode() == ISD::SUB && DAG.isEqualTo(OpRHS, CondRHS)) + return DAG.getNode(X86ISD::SUBUS, DL, VT, OpLHS, OpRHS); + + // If the RHS is a constant we have to reverse the const canonicalization. + // x > C-1 ? x+-C : 0 --> subus x, C + if (CC == ISD::SETUGT && Other->getOpcode() == ISD::ADD && + isSplatVector(CondRHS.getNode()) && isSplatVector(OpRHS.getNode())) { + APInt A = cast<ConstantSDNode>(OpRHS.getOperand(0))->getAPIntValue(); + if (CondRHS.getConstantOperandVal(0) == -A-1) + return DAG.getNode(X86ISD::SUBUS, DL, VT, OpLHS, + DAG.getConstant(-A, VT)); + } + + // Another special case: If C was a sign bit, the sub has been + // canonicalized into a xor. + // FIXME: Would it be better to use ComputeMaskedBits to determine whether + // it's safe to decanonicalize the xor? + // x s< 0 ? x^C : 0 --> subus x, C + if (CC == ISD::SETLT && Other->getOpcode() == ISD::XOR && + ISD::isBuildVectorAllZeros(CondRHS.getNode()) && + isSplatVector(OpRHS.getNode())) { + APInt A = cast<ConstantSDNode>(OpRHS.getOperand(0))->getAPIntValue(); + if (A.isSignBit()) + return DAG.getNode(X86ISD::SUBUS, DL, VT, OpLHS, OpRHS); + } + } + } + + // Try to match a min/max vector operation. + if (!DCI.isBeforeLegalize() && + N->getOpcode() == ISD::VSELECT && Cond.getOpcode() == ISD::SETCC) + if (unsigned Op = matchIntegerMINMAX(Cond, VT, LHS, RHS, DAG, Subtarget)) + return DAG.getNode(Op, DL, N->getValueType(0), LHS, RHS); + // If we know that this node is legal then we know that it is going to be // matched by one of the SSE/AVX BLEND instructions. These instructions only // depend on the highest bit in each word. Try to use SimplifyDemandedBits @@ -14935,8 +15829,9 @@ static SDValue checkBoolTestSetCCCombine(SDValue Cmp, X86::CondCode &CC) { // Quit if the constant is neither 0 or 1. return SDValue(); - // Skip 'zext' node. - if (SetCC.getOpcode() == ISD::ZERO_EXTEND) + // Skip 'zext' or 'trunc' node. + if (SetCC.getOpcode() == ISD::ZERO_EXTEND || + SetCC.getOpcode() == ISD::TRUNCATE) SetCC = SetCC.getOperand(0); switch (SetCC.getOpcode()) { @@ -14955,9 +15850,15 @@ static SDValue checkBoolTestSetCCCombine(SDValue Cmp, X86::CondCode &CC) { return SDValue(); // Quit if false value is not a constant. if (!FVal) { - // A special case for rdrand, where 0 is set if false cond is found. SDValue Op = SetCC.getOperand(0); - if (Op.getOpcode() != X86ISD::RDRAND) + // Skip 'zext' or 'trunc' node. + if (Op.getOpcode() == ISD::ZERO_EXTEND || + Op.getOpcode() == ISD::TRUNCATE) + Op = Op.getOperand(0); + // A special case for rdrand/rdseed, where 0 is set if false cond is + // found. + if ((Op.getOpcode() != X86ISD::RDRAND && + Op.getOpcode() != X86ISD::RDSEED) || Op.getResNo() != 0) return SDValue(); } // Quit if false value is not the constant 0 or 1. @@ -15137,7 +16038,7 @@ static SDValue PerformCMOVCombine(SDNode *N, SelectionDAG &DAG, ConstantSDNode *CmpAgainst = 0; if ((Cond.getOpcode() == X86ISD::CMP || Cond.getOpcode() == X86ISD::SUB) && (CmpAgainst = dyn_cast<ConstantSDNode>(Cond.getOperand(1))) && - dyn_cast<ConstantSDNode>(Cond.getOperand(0)) == 0) { + !isa<ConstantSDNode>(Cond.getOperand(0))) { if (CC == X86::COND_NE && CmpAgainst == dyn_cast<ConstantSDNode>(FalseOp)) { @@ -15158,7 +16059,6 @@ static SDValue PerformCMOVCombine(SDNode *N, SelectionDAG &DAG, return SDValue(); } - /// PerformMulCombine - Optimize a single multiply with constant into two /// in order to implement it with two cheaper instructions, e.g. /// LEA + SHL, LEA + LEA. @@ -15247,7 +16147,6 @@ static SDValue PerformSHLCombine(SDNode *N, SelectionDAG &DAG) { } } - // Hardware support for vector shifts is sparse which makes us scalarize the // vector operations in many cases. Also, on sandybridge ADD is faster than // shl. @@ -15271,127 +16170,14 @@ static SDValue PerformSHLCombine(SDNode *N, SelectionDAG &DAG) { static SDValue PerformShiftCombine(SDNode* N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const X86Subtarget *Subtarget) { - EVT VT = N->getValueType(0); if (N->getOpcode() == ISD::SHL) { SDValue V = PerformSHLCombine(N, DAG); if (V.getNode()) return V; } - // On X86 with SSE2 support, we can transform this to a vector shift if - // all elements are shifted by the same amount. We can't do this in legalize - // because the a constant vector is typically transformed to a constant pool - // so we have no knowledge of the shift amount. - if (!Subtarget->hasSSE2()) - return SDValue(); - - if (VT != MVT::v2i64 && VT != MVT::v4i32 && VT != MVT::v8i16 && - (!Subtarget->hasAVX2() || - (VT != MVT::v4i64 && VT != MVT::v8i32 && VT != MVT::v16i16))) - return SDValue(); - - SDValue ShAmtOp = N->getOperand(1); - EVT EltVT = VT.getVectorElementType(); - DebugLoc DL = N->getDebugLoc(); - SDValue BaseShAmt = SDValue(); - if (ShAmtOp.getOpcode() == ISD::BUILD_VECTOR) { - unsigned NumElts = VT.getVectorNumElements(); - unsigned i = 0; - for (; i != NumElts; ++i) { - SDValue Arg = ShAmtOp.getOperand(i); - if (Arg.getOpcode() == ISD::UNDEF) continue; - BaseShAmt = Arg; - break; - } - // Handle the case where the build_vector is all undef - // FIXME: Should DAG allow this? - if (i == NumElts) - return SDValue(); - - for (; i != NumElts; ++i) { - SDValue Arg = ShAmtOp.getOperand(i); - if (Arg.getOpcode() == ISD::UNDEF) continue; - if (Arg != BaseShAmt) { - return SDValue(); - } - } - } else if (ShAmtOp.getOpcode() == ISD::VECTOR_SHUFFLE && - cast<ShuffleVectorSDNode>(ShAmtOp)->isSplat()) { - SDValue InVec = ShAmtOp.getOperand(0); - if (InVec.getOpcode() == ISD::BUILD_VECTOR) { - unsigned NumElts = InVec.getValueType().getVectorNumElements(); - unsigned i = 0; - for (; i != NumElts; ++i) { - SDValue Arg = InVec.getOperand(i); - if (Arg.getOpcode() == ISD::UNDEF) continue; - BaseShAmt = Arg; - break; - } - } else if (InVec.getOpcode() == ISD::INSERT_VECTOR_ELT) { - if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(InVec.getOperand(2))) { - unsigned SplatIdx= cast<ShuffleVectorSDNode>(ShAmtOp)->getSplatIndex(); - if (C->getZExtValue() == SplatIdx) - BaseShAmt = InVec.getOperand(1); - } - } - if (BaseShAmt.getNode() == 0) { - // Don't create instructions with illegal types after legalize - // types has run. - if (!DAG.getTargetLoweringInfo().isTypeLegal(EltVT) && - !DCI.isBeforeLegalize()) - return SDValue(); - - BaseShAmt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, EltVT, ShAmtOp, - DAG.getIntPtrConstant(0)); - } - } else - return SDValue(); - - // The shift amount is an i32. - if (EltVT.bitsGT(MVT::i32)) - BaseShAmt = DAG.getNode(ISD::TRUNCATE, DL, MVT::i32, BaseShAmt); - else if (EltVT.bitsLT(MVT::i32)) - BaseShAmt = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i32, BaseShAmt); - - // The shift amount is identical so we can do a vector shift. - SDValue ValOp = N->getOperand(0); - switch (N->getOpcode()) { - default: - llvm_unreachable("Unknown shift opcode!"); - case ISD::SHL: - switch (VT.getSimpleVT().SimpleTy) { - default: return SDValue(); - case MVT::v2i64: - case MVT::v4i32: - case MVT::v8i16: - case MVT::v4i64: - case MVT::v8i32: - case MVT::v16i16: - return getTargetVShiftNode(X86ISD::VSHLI, DL, VT, ValOp, BaseShAmt, DAG); - } - case ISD::SRA: - switch (VT.getSimpleVT().SimpleTy) { - default: return SDValue(); - case MVT::v4i32: - case MVT::v8i16: - case MVT::v8i32: - case MVT::v16i16: - return getTargetVShiftNode(X86ISD::VSRAI, DL, VT, ValOp, BaseShAmt, DAG); - } - case ISD::SRL: - switch (VT.getSimpleVT().SimpleTy) { - default: return SDValue(); - case MVT::v2i64: - case MVT::v4i32: - case MVT::v8i16: - case MVT::v4i64: - case MVT::v8i32: - case MVT::v16i16: - return getTargetVShiftNode(X86ISD::VSRLI, DL, VT, ValOp, BaseShAmt, DAG); - } - } + return SDValue(); } - // CMPEQCombine - Recognize the distinctive (AND (setcc ...) (setcc ..)) // where both setccs reference the same FP CMP, and rewrite for CMPEQSS // and friends. Likewise for OR -> CMPNEQSS. @@ -15420,8 +16206,7 @@ static SDValue CMPEQCombine(SDNode *N, SelectionDAG &DAG, if (VT == MVT::f32 || VT == MVT::f64) { bool ExpectingFlags = false; // Check for any users that want flags: - for (SDNode::use_iterator UI = N->use_begin(), - UE = N->use_end(); + for (SDNode::use_iterator UI = N->use_begin(), UE = N->use_end(); !ExpectingFlags && UI != UE; ++UI) switch (UI->getOpcode()) { default: @@ -15500,9 +16285,92 @@ static bool CanFoldXORWithAllOnes(const SDNode *N) { return false; } +// On AVX/AVX2 the type v8i1 is legalized to v8i16, which is an XMM sized +// register. In most cases we actually compare or select YMM-sized registers +// and mixing the two types creates horrible code. This method optimizes +// some of the transition sequences. +static SDValue WidenMaskArithmetic(SDNode *N, SelectionDAG &DAG, + TargetLowering::DAGCombinerInfo &DCI, + const X86Subtarget *Subtarget) { + EVT VT = N->getValueType(0); + if (!VT.is256BitVector()) + return SDValue(); + + assert((N->getOpcode() == ISD::ANY_EXTEND || + N->getOpcode() == ISD::ZERO_EXTEND || + N->getOpcode() == ISD::SIGN_EXTEND) && "Invalid Node"); + + SDValue Narrow = N->getOperand(0); + EVT NarrowVT = Narrow->getValueType(0); + if (!NarrowVT.is128BitVector()) + return SDValue(); + + if (Narrow->getOpcode() != ISD::XOR && + Narrow->getOpcode() != ISD::AND && + Narrow->getOpcode() != ISD::OR) + return SDValue(); + + SDValue N0 = Narrow->getOperand(0); + SDValue N1 = Narrow->getOperand(1); + DebugLoc DL = Narrow->getDebugLoc(); + + // The Left side has to be a trunc. + if (N0.getOpcode() != ISD::TRUNCATE) + return SDValue(); + + // The type of the truncated inputs. + EVT WideVT = N0->getOperand(0)->getValueType(0); + if (WideVT != VT) + return SDValue(); + + // The right side has to be a 'trunc' or a constant vector. + bool RHSTrunc = N1.getOpcode() == ISD::TRUNCATE; + bool RHSConst = (isSplatVector(N1.getNode()) && + isa<ConstantSDNode>(N1->getOperand(0))); + if (!RHSTrunc && !RHSConst) + return SDValue(); + + const TargetLowering &TLI = DAG.getTargetLoweringInfo(); + + if (!TLI.isOperationLegalOrPromote(Narrow->getOpcode(), WideVT)) + return SDValue(); + + // Set N0 and N1 to hold the inputs to the new wide operation. + N0 = N0->getOperand(0); + if (RHSConst) { + N1 = DAG.getNode(ISD::ZERO_EXTEND, DL, WideVT.getScalarType(), + N1->getOperand(0)); + SmallVector<SDValue, 8> C(WideVT.getVectorNumElements(), N1); + N1 = DAG.getNode(ISD::BUILD_VECTOR, DL, WideVT, &C[0], C.size()); + } else if (RHSTrunc) { + N1 = N1->getOperand(0); + } + + // Generate the wide operation. + SDValue Op = DAG.getNode(Narrow->getOpcode(), DL, WideVT, N0, N1); + unsigned Opcode = N->getOpcode(); + switch (Opcode) { + case ISD::ANY_EXTEND: + return Op; + case ISD::ZERO_EXTEND: { + unsigned InBits = NarrowVT.getScalarType().getSizeInBits(); + APInt Mask = APInt::getAllOnesValue(InBits); + Mask = Mask.zext(VT.getScalarType().getSizeInBits()); + return DAG.getNode(ISD::AND, DL, VT, + Op, DAG.getConstant(Mask, VT)); + } + case ISD::SIGN_EXTEND: + return DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, VT, + Op, DAG.getValueType(NarrowVT)); + default: + llvm_unreachable("Unexpected opcode"); + } +} + static SDValue PerformAndCombine(SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const X86Subtarget *Subtarget) { + EVT VT = N->getValueType(0); if (DCI.isBeforeLegalizeOps()) return SDValue(); @@ -15510,9 +16378,7 @@ static SDValue PerformAndCombine(SDNode *N, SelectionDAG &DAG, if (R.getNode()) return R; - EVT VT = N->getValueType(0); - - // Create ANDN, BLSI, and BLSR instructions + // Create BLSI, and BLSR instructions // BLSI is X & (-X) // BLSR is X & (X-1) if (Subtarget->hasBMI() && (VT == MVT::i32 || VT == MVT::i64)) { @@ -15520,13 +16386,6 @@ static SDValue PerformAndCombine(SDNode *N, SelectionDAG &DAG, SDValue N1 = N->getOperand(1); DebugLoc DL = N->getDebugLoc(); - // Check LHS for not - if (N0.getOpcode() == ISD::XOR && isAllOnes(N0.getOperand(1))) - return DAG.getNode(X86ISD::ANDN, DL, VT, N0.getOperand(0), N1); - // Check RHS for not - if (N1.getOpcode() == ISD::XOR && isAllOnes(N1.getOperand(1))) - return DAG.getNode(X86ISD::ANDN, DL, VT, N1.getOperand(0), N0); - // Check LHS for neg if (N0.getOpcode() == ISD::SUB && N0.getOperand(1) == N1 && isZero(N0.getOperand(0))) @@ -15579,6 +16438,7 @@ static SDValue PerformAndCombine(SDNode *N, SelectionDAG &DAG, static SDValue PerformOrCombine(SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const X86Subtarget *Subtarget) { + EVT VT = N->getValueType(0); if (DCI.isBeforeLegalizeOps()) return SDValue(); @@ -15586,15 +16446,13 @@ static SDValue PerformOrCombine(SDNode *N, SelectionDAG &DAG, if (R.getNode()) return R; - EVT VT = N->getValueType(0); - SDValue N0 = N->getOperand(0); SDValue N1 = N->getOperand(1); // look for psign/blend if (VT == MVT::v2i64 || VT == MVT::v4i64) { if (!Subtarget->hasSSSE3() || - (VT == MVT::v4i64 && !Subtarget->hasAVX2())) + (VT == MVT::v4i64 && !Subtarget->hasInt256())) return SDValue(); // Canonicalize pandn to RHS @@ -15628,13 +16486,19 @@ static SDValue PerformOrCombine(SDNode *N, SelectionDAG &DAG, // Validate that the Mask operand is a vector sra node. // FIXME: what to do for bytes, since there is a psignb/pblendvb, but // there is no psrai.b - if (Mask.getOpcode() != X86ISD::VSRAI) - return SDValue(); - - // Check that the SRA is all signbits. - SDValue SraC = Mask.getOperand(1); - unsigned SraAmt = cast<ConstantSDNode>(SraC)->getZExtValue(); unsigned EltBits = MaskVT.getVectorElementType().getSizeInBits(); + unsigned SraAmt = ~0; + if (Mask.getOpcode() == ISD::SRA) { + SDValue Amt = Mask.getOperand(1); + if (isSplatVector(Amt.getNode())) { + SDValue SclrAmt = Amt->getOperand(0); + if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(SclrAmt)) + SraAmt = C->getZExtValue(); + } + } else if (Mask.getOpcode() == X86ISD::VSRAI) { + SDValue SraC = Mask.getOperand(1); + SraAmt = cast<ConstantSDNode>(SraC)->getZExtValue(); + } if ((SraAmt + 1) != EltBits) return SDValue(); @@ -15762,6 +16626,7 @@ static SDValue performIntegerAbsCombine(SDNode *N, SelectionDAG &DAG) { static SDValue PerformXorCombine(SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI, const X86Subtarget *Subtarget) { + EVT VT = N->getValueType(0); if (DCI.isBeforeLegalizeOps()) return SDValue(); @@ -15775,8 +16640,6 @@ static SDValue PerformXorCombine(SDNode *N, SelectionDAG &DAG, if (!Subtarget->hasBMI()) return SDValue(); - EVT VT = N->getValueType(0); - if (VT != MVT::i32 && VT != MVT::i64) return SDValue(); @@ -15807,23 +16670,61 @@ static SDValue PerformLOADCombine(SDNode *N, SelectionDAG &DAG, EVT MemVT = Ld->getMemoryVT(); DebugLoc dl = Ld->getDebugLoc(); const TargetLowering &TLI = DAG.getTargetLoweringInfo(); + unsigned RegSz = RegVT.getSizeInBits(); + // On Sandybridge unaligned 256bit loads are inefficient. ISD::LoadExtType Ext = Ld->getExtensionType(); + unsigned Alignment = Ld->getAlignment(); + bool IsAligned = Alignment == 0 || Alignment >= MemVT.getSizeInBits()/8; + if (RegVT.is256BitVector() && !Subtarget->hasInt256() && + !DCI.isBeforeLegalizeOps() && !IsAligned && Ext == ISD::NON_EXTLOAD) { + unsigned NumElems = RegVT.getVectorNumElements(); + if (NumElems < 2) + return SDValue(); + + SDValue Ptr = Ld->getBasePtr(); + SDValue Increment = DAG.getConstant(16, TLI.getPointerTy()); + + EVT HalfVT = EVT::getVectorVT(*DAG.getContext(), MemVT.getScalarType(), + NumElems/2); + SDValue Load1 = DAG.getLoad(HalfVT, dl, Ld->getChain(), Ptr, + Ld->getPointerInfo(), Ld->isVolatile(), + Ld->isNonTemporal(), Ld->isInvariant(), + Alignment); + Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, Increment); + SDValue Load2 = DAG.getLoad(HalfVT, dl, Ld->getChain(), Ptr, + Ld->getPointerInfo(), Ld->isVolatile(), + Ld->isNonTemporal(), Ld->isInvariant(), + std::min(16U, Alignment)); + SDValue TF = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, + Load1.getValue(1), + Load2.getValue(1)); + + SDValue NewVec = DAG.getUNDEF(RegVT); + NewVec = Insert128BitVector(NewVec, Load1, 0, DAG, dl); + NewVec = Insert128BitVector(NewVec, Load2, NumElems/2, DAG, dl); + return DCI.CombineTo(N, NewVec, TF, true); + } // If this is a vector EXT Load then attempt to optimize it using a - // shuffle. We need SSSE3 shuffles. + // shuffle. If SSSE3 is not available we may emit an illegal shuffle but the + // expansion is still better than scalar code. + // We generate X86ISD::VSEXT for SEXTLOADs if it's available, otherwise we'll + // emit a shuffle and a arithmetic shift. // TODO: It is possible to support ZExt by zeroing the undef values // during the shuffle phase or after the shuffle. - if (RegVT.isVector() && RegVT.isInteger() && - Ext == ISD::EXTLOAD && Subtarget->hasSSSE3()) { + if (RegVT.isVector() && RegVT.isInteger() && Subtarget->hasSSE2() && + (Ext == ISD::EXTLOAD || Ext == ISD::SEXTLOAD)) { assert(MemVT != RegVT && "Cannot extend to the same type"); assert(MemVT.isVector() && "Must load a vector from memory"); unsigned NumElems = RegVT.getVectorNumElements(); - unsigned RegSz = RegVT.getSizeInBits(); unsigned MemSz = MemVT.getSizeInBits(); assert(RegSz > MemSz && "Register size must be greater than the mem size"); + if (Ext == ISD::SEXTLOAD && RegSz == 256 && !Subtarget->hasInt256()) + return SDValue(); + // All sizes must be a power of two. if (!isPowerOf2_32(RegSz * MemSz * NumElems)) return SDValue(); @@ -15847,16 +16748,23 @@ static SDValue PerformLOADCombine(SDNode *N, SelectionDAG &DAG, // Calculate the number of scalar loads that we need to perform // in order to load our vector from memory. unsigned NumLoads = MemSz / SclrLoadTy.getSizeInBits(); + if (Ext == ISD::SEXTLOAD && NumLoads > 1) + return SDValue(); + + unsigned loadRegZize = RegSz; + if (Ext == ISD::SEXTLOAD && RegSz == 256) + loadRegZize /= 2; // Represent our vector as a sequence of elements which are the // largest scalar that we can load. EVT LoadUnitVecVT = EVT::getVectorVT(*DAG.getContext(), SclrLoadTy, - RegSz/SclrLoadTy.getSizeInBits()); + loadRegZize/SclrLoadTy.getSizeInBits()); // Represent the data using the same element type that is stored in // memory. In practice, we ''widen'' MemVT. - EVT WideVecVT = EVT::getVectorVT(*DAG.getContext(), MemVT.getScalarType(), - RegSz/MemVT.getScalarType().getSizeInBits()); + EVT WideVecVT = + EVT::getVectorVT(*DAG.getContext(), MemVT.getScalarType(), + loadRegZize/MemVT.getScalarType().getSizeInBits()); assert(WideVecVT.getSizeInBits() == LoadUnitVecVT.getSizeInBits() && "Invalid vector type"); @@ -15897,6 +16805,39 @@ static SDValue PerformLOADCombine(SDNode *N, SelectionDAG &DAG, SDValue SlicedVec = DAG.getNode(ISD::BITCAST, dl, WideVecVT, Res); unsigned SizeRatio = RegSz/MemSz; + if (Ext == ISD::SEXTLOAD) { + // If we have SSE4.1 we can directly emit a VSEXT node. + if (Subtarget->hasSSE41()) { + SDValue Sext = DAG.getNode(X86ISD::VSEXT, dl, RegVT, SlicedVec); + return DCI.CombineTo(N, Sext, TF, true); + } + + // Otherwise we'll shuffle the small elements in the high bits of the + // larger type and perform an arithmetic shift. If the shift is not legal + // it's better to scalarize. + if (!TLI.isOperationLegalOrCustom(ISD::SRA, RegVT)) + return SDValue(); + + // Redistribute the loaded elements into the different locations. + SmallVector<int, 8> ShuffleVec(NumElems * SizeRatio, -1); + for (unsigned i = 0; i != NumElems; ++i) + ShuffleVec[i*SizeRatio + SizeRatio-1] = i; + + SDValue Shuff = DAG.getVectorShuffle(WideVecVT, dl, SlicedVec, + DAG.getUNDEF(WideVecVT), + &ShuffleVec[0]); + + Shuff = DAG.getNode(ISD::BITCAST, dl, RegVT, Shuff); + + // Build the arithmetic shift. + unsigned Amt = RegVT.getVectorElementType().getSizeInBits() - + MemVT.getVectorElementType().getSizeInBits(); + Shuff = DAG.getNode(ISD::SRA, dl, RegVT, Shuff, + DAG.getConstant(Amt, RegVT)); + + return DCI.CombineTo(N, Shuff, TF, true); + } + // Redistribute the loaded elements into the different locations. SmallVector<int, 8> ShuffleVec(NumElems * SizeRatio, -1); for (unsigned i = 0; i != NumElems; ++i) @@ -15930,11 +16871,16 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG, // On Sandy Bridge, 256-bit memory operations are executed by two // 128-bit ports. However, on Haswell it is better to issue a single 256-bit // memory operation. - if (VT.is256BitVector() && !Subtarget->hasAVX2() && - StoredVal.getNode()->getOpcode() == ISD::CONCAT_VECTORS && - StoredVal.getNumOperands() == 2) { - SDValue Value0 = StoredVal.getOperand(0); - SDValue Value1 = StoredVal.getOperand(1); + unsigned Alignment = St->getAlignment(); + bool IsAligned = Alignment == 0 || Alignment >= VT.getSizeInBits()/8; + if (VT.is256BitVector() && !Subtarget->hasInt256() && + StVT == VT && !IsAligned) { + unsigned NumElems = VT.getVectorNumElements(); + if (NumElems < 2) + return SDValue(); + + SDValue Value0 = Extract128BitVector(StoredVal, 0, DAG, dl); + SDValue Value1 = Extract128BitVector(StoredVal, NumElems/2, DAG, dl); SDValue Stride = DAG.getConstant(16, TLI.getPointerTy()); SDValue Ptr0 = St->getBasePtr(); @@ -15942,10 +16888,11 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG, SDValue Ch0 = DAG.getStore(St->getChain(), dl, Value0, Ptr0, St->getPointerInfo(), St->isVolatile(), - St->isNonTemporal(), St->getAlignment()); + St->isNonTemporal(), Alignment); SDValue Ch1 = DAG.getStore(St->getChain(), dl, Value1, Ptr1, St->getPointerInfo(), St->isVolatile(), - St->isNonTemporal(), St->getAlignment()); + St->isNonTemporal(), + std::min(16U, Alignment)); return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Ch0, Ch1); } @@ -16030,7 +16977,6 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG, Chains.size()); } - // Turn load->store of MMX types into GPR load/stores. This avoids clobbering // the FP state in cases where an emms may be missing. // A preferable solution to the general problem is to figure out the right @@ -16041,8 +16987,8 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG, return SDValue(); const Function *F = DAG.getMachineFunction().getFunction(); - bool NoImplicitFloatOps = F->getFnAttributes(). - hasAttribute(Attributes::NoImplicitFloat); + bool NoImplicitFloatOps = F->getAttributes(). + hasAttribute(AttributeSet::FunctionIndex, Attribute::NoImplicitFloat); bool F64IsLegal = !DAG.getTarget().Options.UseSoftFloat && !NoImplicitFloatOps && Subtarget->hasSSE2(); if ((VT.isVector() || @@ -16278,7 +17224,7 @@ static SDValue PerformFADDCombine(SDNode *N, SelectionDAG &DAG, // Try to synthesize horizontal adds from adds of shuffles. if (((Subtarget->hasSSE3() && (VT == MVT::v4f32 || VT == MVT::v2f64)) || - (Subtarget->hasAVX() && (VT == MVT::v8f32 || VT == MVT::v4f64))) && + (Subtarget->hasFp256() && (VT == MVT::v8f32 || VT == MVT::v4f64))) && isHorizontalBinOp(LHS, RHS, true)) return DAG.getNode(X86ISD::FHADD, N->getDebugLoc(), VT, LHS, RHS); return SDValue(); @@ -16293,7 +17239,7 @@ static SDValue PerformFSUBCombine(SDNode *N, SelectionDAG &DAG, // Try to synthesize horizontal subs from subs of shuffles. if (((Subtarget->hasSSE3() && (VT == MVT::v4f32 || VT == MVT::v2f64)) || - (Subtarget->hasAVX() && (VT == MVT::v8f32 || VT == MVT::v4f64))) && + (Subtarget->hasFp256() && (VT == MVT::v8f32 || VT == MVT::v4f64))) && isHorizontalBinOp(LHS, RHS, false)) return DAG.getNode(X86ISD::FHSUB, N->getDebugLoc(), VT, LHS, RHS); return SDValue(); @@ -16336,7 +17282,6 @@ static SDValue PerformFMinFMaxCombine(SDNode *N, SelectionDAG &DAG) { N->getOperand(0), N->getOperand(1)); } - /// PerformFANDCombine - Do target-specific dag combines on X86ISD::FAND nodes. static SDValue PerformFANDCombine(SDNode *N, SelectionDAG &DAG) { // FAND(0.0, x) -> 0.0 @@ -16382,58 +17327,57 @@ static SDValue PerformVZEXT_MOVLCombine(SDNode *N, SelectionDAG &DAG) { return SDValue(); } -static SDValue PerformSExtCombine(SDNode *N, SelectionDAG &DAG, - TargetLowering::DAGCombinerInfo &DCI, - const X86Subtarget *Subtarget) { - if (!DCI.isBeforeLegalizeOps()) - return SDValue(); - - if (!Subtarget->hasAVX()) +static SDValue PerformSIGN_EXTEND_INREGCombine(SDNode *N, SelectionDAG &DAG, + const X86Subtarget *Subtarget) { + EVT VT = N->getValueType(0); + if (!VT.isVector()) return SDValue(); - EVT VT = N->getValueType(0); - SDValue Op = N->getOperand(0); - EVT OpVT = Op.getValueType(); + SDValue N0 = N->getOperand(0); + SDValue N1 = N->getOperand(1); + EVT ExtraVT = cast<VTSDNode>(N1)->getVT(); DebugLoc dl = N->getDebugLoc(); - if ((VT == MVT::v4i64 && OpVT == MVT::v4i32) || - (VT == MVT::v8i32 && OpVT == MVT::v8i16)) { - - if (Subtarget->hasAVX2()) - return DAG.getNode(X86ISD::VSEXT_MOVL, dl, VT, Op); - - // Optimize vectors in AVX mode - // Sign extend v8i16 to v8i32 and - // v4i32 to v4i64 - // - // Divide input vector into two parts - // for v4i32 the shuffle mask will be { 0, 1, -1, -1} {2, 3, -1, -1} - // use vpmovsx instruction to extend v4i32 -> v2i64; v8i16 -> v4i32 - // concat the vectors to original VT - - unsigned NumElems = OpVT.getVectorNumElements(); - SDValue Undef = DAG.getUNDEF(OpVT); - - SmallVector<int,8> ShufMask1(NumElems, -1); - for (unsigned i = 0; i != NumElems/2; ++i) - ShufMask1[i] = i; - - SDValue OpLo = DAG.getVectorShuffle(OpVT, dl, Op, Undef, &ShufMask1[0]); + // The SIGN_EXTEND_INREG to v4i64 is expensive operation on the + // both SSE and AVX2 since there is no sign-extended shift right + // operation on a vector with 64-bit elements. + //(sext_in_reg (v4i64 anyext (v4i32 x )), ExtraVT) -> + // (v4i64 sext (v4i32 sext_in_reg (v4i32 x , ExtraVT))) + if (VT == MVT::v4i64 && (N0.getOpcode() == ISD::ANY_EXTEND || + N0.getOpcode() == ISD::SIGN_EXTEND)) { + SDValue N00 = N0.getOperand(0); - SmallVector<int,8> ShufMask2(NumElems, -1); - for (unsigned i = 0; i != NumElems/2; ++i) - ShufMask2[i] = i + NumElems/2; + // EXTLOAD has a better solution on AVX2, + // it may be replaced with X86ISD::VSEXT node. + if (N00.getOpcode() == ISD::LOAD && Subtarget->hasInt256()) + if (!ISD::isNormalLoad(N00.getNode())) + return SDValue(); - SDValue OpHi = DAG.getVectorShuffle(OpVT, dl, Op, Undef, &ShufMask2[0]); + if (N00.getValueType() == MVT::v4i32 && ExtraVT.getSizeInBits() < 128) { + SDValue Tmp = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, MVT::v4i32, + N00, N1); + return DAG.getNode(ISD::SIGN_EXTEND, dl, MVT::v4i64, Tmp); + } + } + return SDValue(); +} - EVT HalfVT = EVT::getVectorVT(*DAG.getContext(), VT.getScalarType(), - VT.getVectorNumElements()/2); +static SDValue PerformSExtCombine(SDNode *N, SelectionDAG &DAG, + TargetLowering::DAGCombinerInfo &DCI, + const X86Subtarget *Subtarget) { + if (!DCI.isBeforeLegalizeOps()) + return SDValue(); - OpLo = DAG.getNode(X86ISD::VSEXT_MOVL, dl, HalfVT, OpLo); - OpHi = DAG.getNode(X86ISD::VSEXT_MOVL, dl, HalfVT, OpHi); + if (!Subtarget->hasFp256()) + return SDValue(); - return DAG.getNode(ISD::CONCAT_VECTORS, dl, VT, OpLo, OpHi); + EVT VT = N->getValueType(0); + if (VT.isVector() && VT.getSizeInBits() == 256) { + SDValue R = WidenMaskArithmetic(N, DAG, DCI, Subtarget); + if (R.getNode()) + return R; } + return SDValue(); } @@ -16487,58 +17431,26 @@ static SDValue PerformZExtCombine(SDNode *N, SelectionDAG &DAG, DebugLoc dl = N->getDebugLoc(); SDValue N0 = N->getOperand(0); EVT VT = N->getValueType(0); - EVT OpVT = N0.getValueType(); if (N0.getOpcode() == ISD::AND && N0.hasOneUse() && N0.getOperand(0).hasOneUse()) { SDValue N00 = N0.getOperand(0); - if (N00.getOpcode() != X86ISD::SETCC_CARRY) - return SDValue(); - ConstantSDNode *C = dyn_cast<ConstantSDNode>(N0.getOperand(1)); - if (!C || C->getZExtValue() != 1) - return SDValue(); - return DAG.getNode(ISD::AND, dl, VT, - DAG.getNode(X86ISD::SETCC_CARRY, dl, VT, - N00.getOperand(0), N00.getOperand(1)), - DAG.getConstant(1, VT)); + if (N00.getOpcode() == X86ISD::SETCC_CARRY) { + ConstantSDNode *C = dyn_cast<ConstantSDNode>(N0.getOperand(1)); + if (!C || C->getZExtValue() != 1) + return SDValue(); + return DAG.getNode(ISD::AND, dl, VT, + DAG.getNode(X86ISD::SETCC_CARRY, dl, VT, + N00.getOperand(0), N00.getOperand(1)), + DAG.getConstant(1, VT)); + } } - // Optimize vectors in AVX mode: - // - // v8i16 -> v8i32 - // Use vpunpcklwd for 4 lower elements v8i16 -> v4i32. - // Use vpunpckhwd for 4 upper elements v8i16 -> v4i32. - // Concat upper and lower parts. - // - // v4i32 -> v4i64 - // Use vpunpckldq for 4 lower elements v4i32 -> v2i64. - // Use vpunpckhdq for 4 upper elements v4i32 -> v2i64. - // Concat upper and lower parts. - // - if (!DCI.isBeforeLegalizeOps()) - return SDValue(); - - if (!Subtarget->hasAVX()) - return SDValue(); - - if (((VT == MVT::v8i32) && (OpVT == MVT::v8i16)) || - ((VT == MVT::v4i64) && (OpVT == MVT::v4i32))) { - - if (Subtarget->hasAVX2()) - return DAG.getNode(X86ISD::VZEXT_MOVL, dl, VT, N0); - - SDValue ZeroVec = getZeroVector(OpVT, Subtarget, DAG, dl); - SDValue OpLo = getUnpackl(DAG, dl, OpVT, N0, ZeroVec); - SDValue OpHi = getUnpackh(DAG, dl, OpVT, N0, ZeroVec); - - EVT HVT = EVT::getVectorVT(*DAG.getContext(), VT.getVectorElementType(), - VT.getVectorNumElements()/2); - - OpLo = DAG.getNode(ISD::BITCAST, dl, HVT, OpLo); - OpHi = DAG.getNode(ISD::BITCAST, dl, HVT, OpHi); - - return DAG.getNode(ISD::CONCAT_VECTORS, dl, VT, OpLo, OpHi); + if (VT.is256BitVector()) { + SDValue R = WidenMaskArithmetic(N, DAG, DCI, Subtarget); + if (R.getNode()) + return R; } return SDValue(); @@ -16570,8 +17482,8 @@ static SDValue PerformISDSETCCCombine(SDNode *N, SelectionDAG &DAG) { return SDValue(); } -// Helper function of PerformSETCCCombine. It is to materialize "setb reg" -// as "sbb reg,reg", since it can be extended without zext and produces +// Helper function of PerformSETCCCombine. It is to materialize "setb reg" +// as "sbb reg,reg", since it can be extended without zext and produces // an all-ones bit which is more useful than 0/1 in some cases. static SDValue MaterializeSETB(DebugLoc DL, SDValue EFLAGS, SelectionDAG &DAG) { return DAG.getNode(ISD::AND, DL, MVT::i8, @@ -16589,13 +17501,13 @@ static SDValue PerformSETCCCombine(SDNode *N, SelectionDAG &DAG, SDValue EFLAGS = N->getOperand(1); if (CC == X86::COND_A) { - // Try to convert COND_A into COND_B in an attempt to facilitate + // Try to convert COND_A into COND_B in an attempt to facilitate // materializing "setb reg". // // Do not flip "e > c", where "c" is a constant, because Cmp instruction // cannot take an immediate as its first operand. // - if (EFLAGS.getOpcode() == X86ISD::SUB && EFLAGS.hasOneUse() && + if (EFLAGS.getOpcode() == X86ISD::SUB && EFLAGS.hasOneUse() && EFLAGS.getValueType().isInteger() && !isa<ConstantSDNode>(EFLAGS.getOperand(1))) { SDValue NewSub = DAG.getNode(X86ISD::SUB, EFLAGS.getDebugLoc(), @@ -16751,7 +17663,7 @@ static SDValue PerformAddCombine(SDNode *N, SelectionDAG &DAG, // Try to synthesize horizontal adds from adds of shuffles. if (((Subtarget->hasSSSE3() && (VT == MVT::v8i16 || VT == MVT::v4i32)) || - (Subtarget->hasAVX2() && (VT == MVT::v16i16 || VT == MVT::v8i32))) && + (Subtarget->hasInt256() && (VT == MVT::v16i16 || VT == MVT::v8i32))) && isHorizontalBinOp(Op0, Op1, true)) return DAG.getNode(X86ISD::HADD, N->getDebugLoc(), VT, Op0, Op1); @@ -16784,7 +17696,7 @@ static SDValue PerformSubCombine(SDNode *N, SelectionDAG &DAG, // Try to synthesize horizontal adds from adds of shuffles. EVT VT = N->getValueType(0); if (((Subtarget->hasSSSE3() && (VT == MVT::v8i16 || VT == MVT::v4i32)) || - (Subtarget->hasAVX2() && (VT == MVT::v16i16 || VT == MVT::v8i32))) && + (Subtarget->hasInt256() && (VT == MVT::v16i16 || VT == MVT::v8i32))) && isHorizontalBinOp(Op0, Op1, true)) return DAG.getNode(X86ISD::HSUB, N->getDebugLoc(), VT, Op0, Op1); @@ -16803,7 +17715,8 @@ static SDValue performVZEXTCombine(SDNode *N, SelectionDAG &DAG, if (In.getOpcode() != X86ISD::VZEXT) return SDValue(); - return DAG.getNode(X86ISD::VZEXT, N->getDebugLoc(), N->getValueType(0), In.getOperand(0)); + return DAG.getNode(X86ISD::VZEXT, N->getDebugLoc(), N->getValueType(0), + In.getOperand(0)); } SDValue X86TargetLowering::PerformDAGCombine(SDNode *N, @@ -16841,13 +17754,14 @@ SDValue X86TargetLowering::PerformDAGCombine(SDNode *N, case ISD::ANY_EXTEND: case ISD::ZERO_EXTEND: return PerformZExtCombine(N, DAG, DCI, Subtarget); case ISD::SIGN_EXTEND: return PerformSExtCombine(N, DAG, DCI, Subtarget); + case ISD::SIGN_EXTEND_INREG: return PerformSIGN_EXTEND_INREGCombine(N, DAG, Subtarget); case ISD::TRUNCATE: return PerformTruncateCombine(N, DAG,DCI,Subtarget); case ISD::SETCC: return PerformISDSETCCCombine(N, DAG); case X86ISD::SETCC: return PerformSETCCCombine(N, DAG, DCI, Subtarget); case X86ISD::BRCOND: return PerformBrCondCombine(N, DAG, DCI, Subtarget); case X86ISD::VZEXT: return performVZEXTCombine(N, DAG, DCI, Subtarget); case X86ISD::SHUFP: // Handle all target specific shuffles - case X86ISD::PALIGN: + case X86ISD::PALIGNR: case X86ISD::UNPCKH: case X86ISD::UNPCKL: case X86ISD::MOVHLPS: @@ -17030,7 +17944,7 @@ bool X86TargetLowering::ExpandInlineAsm(CallInst *CI) const { AsmPieces.clear(); const std::string &ConstraintsStr = IA->getConstraintString(); SplitString(StringRef(ConstraintsStr).substr(5), AsmPieces, ","); - std::sort(AsmPieces.begin(), AsmPieces.end()); + array_pod_sort(AsmPieces.begin(), AsmPieces.end()); if (AsmPieces.size() == 4 && AsmPieces[0] == "~{cc}" && AsmPieces[1] == "~{dirflag}" && @@ -17048,7 +17962,7 @@ bool X86TargetLowering::ExpandInlineAsm(CallInst *CI) const { AsmPieces.clear(); const std::string &ConstraintsStr = IA->getConstraintString(); SplitString(StringRef(ConstraintsStr).substr(5), AsmPieces, ","); - std::sort(AsmPieces.begin(), AsmPieces.end()); + array_pod_sort(AsmPieces.begin(), AsmPieces.end()); if (AsmPieces.size() == 4 && AsmPieces[0] == "~{cc}" && AsmPieces[1] == "~{dirflag}" && @@ -17074,8 +17988,6 @@ bool X86TargetLowering::ExpandInlineAsm(CallInst *CI) const { return false; } - - /// getConstraintType - Given a constraint letter, return the type of /// constraint it is for this target. X86TargetLowering::ConstraintType @@ -17152,17 +18064,17 @@ TargetLowering::ConstraintWeight case 'f': case 't': case 'u': - if (type->isFloatingPointTy()) - weight = CW_SpecificReg; - break; + if (type->isFloatingPointTy()) + weight = CW_SpecificReg; + break; case 'y': - if (type->isX86_MMXTy() && Subtarget->hasMMX()) - weight = CW_SpecificReg; - break; + if (type->isX86_MMXTy() && Subtarget->hasMMX()) + weight = CW_SpecificReg; + break; case 'x': case 'Y': if (((type->getPrimitiveSizeInBits() == 128) && Subtarget->hasSSE1()) || - ((type->getPrimitiveSizeInBits() == 256) && Subtarget->hasAVX())) + ((type->getPrimitiveSizeInBits() == 256) && Subtarget->hasFp256())) weight = CW_Register; break; case 'I': @@ -17530,7 +18442,7 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, // really want an 8-bit or 32-bit register, map to the appropriate register // class and return the appropriate register. if (Res.second == &X86::GR16RegClass) { - if (VT == MVT::i8) { + if (VT == MVT::i8 || VT == MVT::i1) { unsigned DestReg = 0; switch (Res.first) { default: break; @@ -17543,7 +18455,7 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, Res.first = DestReg; Res.second = &X86::GR8RegClass; } - } else if (VT == MVT::i32) { + } else if (VT == MVT::i32 || VT == MVT::f32) { unsigned DestReg = 0; switch (Res.first) { default: break; @@ -17560,7 +18472,7 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, Res.first = DestReg; Res.second = &X86::GR32RegClass; } - } else if (VT == MVT::i64) { + } else if (VT == MVT::i64 || VT == MVT::f64) { unsigned DestReg = 0; switch (Res.first) { default: break; @@ -17598,207 +18510,3 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint, return Res; } - -//===----------------------------------------------------------------------===// -// -// X86 cost model. -// -//===----------------------------------------------------------------------===// - -struct X86CostTblEntry { - int ISD; - MVT Type; - unsigned Cost; -}; - -static int -FindInTable(const X86CostTblEntry *Tbl, unsigned len, int ISD, MVT Ty) { - for (unsigned int i = 0; i < len; ++i) - if (Tbl[i].ISD == ISD && Tbl[i].Type == Ty) - return i; - - // Could not find an entry. - return -1; -} - -struct X86TypeConversionCostTblEntry { - int ISD; - MVT Dst; - MVT Src; - unsigned Cost; -}; - -static int -FindInConvertTable(const X86TypeConversionCostTblEntry *Tbl, unsigned len, - int ISD, MVT Dst, MVT Src) { - for (unsigned int i = 0; i < len; ++i) - if (Tbl[i].ISD == ISD && Tbl[i].Src == Src && Tbl[i].Dst == Dst) - return i; - - // Could not find an entry. - return -1; -} - -unsigned -X86VectorTargetTransformInfo::getArithmeticInstrCost(unsigned Opcode, - Type *Ty) const { - // Legalize the type. - std::pair<unsigned, MVT> LT = getTypeLegalizationCost(Ty); - - int ISD = InstructionOpcodeToISD(Opcode); - assert(ISD && "Invalid opcode"); - - const X86Subtarget &ST = TLI->getTargetMachine().getSubtarget<X86Subtarget>(); - - static const X86CostTblEntry AVX1CostTable[] = { - // We don't have to scalarize unsupported ops. We can issue two half-sized - // operations and we only need to extract the upper YMM half. - // Two ops + 1 extract + 1 insert = 4. - { ISD::MUL, MVT::v8i32, 4 }, - { ISD::SUB, MVT::v8i32, 4 }, - { ISD::ADD, MVT::v8i32, 4 }, - { ISD::MUL, MVT::v4i64, 4 }, - { ISD::SUB, MVT::v4i64, 4 }, - { ISD::ADD, MVT::v4i64, 4 }, - }; - - // Look for AVX1 lowering tricks. - if (ST.hasAVX()) { - int Idx = FindInTable(AVX1CostTable, array_lengthof(AVX1CostTable), ISD, - LT.second); - if (Idx != -1) - return LT.first * AVX1CostTable[Idx].Cost; - } - // Fallback to the default implementation. - return VectorTargetTransformImpl::getArithmeticInstrCost(Opcode, Ty); -} - -unsigned -X86VectorTargetTransformInfo::getVectorInstrCost(unsigned Opcode, Type *Val, - unsigned Index) const { - assert(Val->isVectorTy() && "This must be a vector type"); - - if (Index != -1U) { - // Legalize the type. - std::pair<unsigned, MVT> LT = getTypeLegalizationCost(Val); - - // This type is legalized to a scalar type. - if (!LT.second.isVector()) - return 0; - - // The type may be split. Normalize the index to the new type. - unsigned Width = LT.second.getVectorNumElements(); - Index = Index % Width; - - // Floating point scalars are already located in index #0. - if (Val->getScalarType()->isFloatingPointTy() && Index == 0) - return 0; - } - - return VectorTargetTransformImpl::getVectorInstrCost(Opcode, Val, Index); -} - -unsigned X86VectorTargetTransformInfo::getCmpSelInstrCost(unsigned Opcode, - Type *ValTy, - Type *CondTy) const { - // Legalize the type. - std::pair<unsigned, MVT> LT = getTypeLegalizationCost(ValTy); - - MVT MTy = LT.second; - - int ISD = InstructionOpcodeToISD(Opcode); - assert(ISD && "Invalid opcode"); - - const X86Subtarget &ST = - TLI->getTargetMachine().getSubtarget<X86Subtarget>(); - - static const X86CostTblEntry SSE42CostTbl[] = { - { ISD::SETCC, MVT::v2f64, 1 }, - { ISD::SETCC, MVT::v4f32, 1 }, - { ISD::SETCC, MVT::v2i64, 1 }, - { ISD::SETCC, MVT::v4i32, 1 }, - { ISD::SETCC, MVT::v8i16, 1 }, - { ISD::SETCC, MVT::v16i8, 1 }, - }; - - static const X86CostTblEntry AVX1CostTbl[] = { - { ISD::SETCC, MVT::v4f64, 1 }, - { ISD::SETCC, MVT::v8f32, 1 }, - // AVX1 does not support 8-wide integer compare. - { ISD::SETCC, MVT::v4i64, 4 }, - { ISD::SETCC, MVT::v8i32, 4 }, - { ISD::SETCC, MVT::v16i16, 4 }, - { ISD::SETCC, MVT::v32i8, 4 }, - }; - - static const X86CostTblEntry AVX2CostTbl[] = { - { ISD::SETCC, MVT::v4i64, 1 }, - { ISD::SETCC, MVT::v8i32, 1 }, - { ISD::SETCC, MVT::v16i16, 1 }, - { ISD::SETCC, MVT::v32i8, 1 }, - }; - - if (ST.hasSSE42()) { - int Idx = FindInTable(SSE42CostTbl, array_lengthof(SSE42CostTbl), ISD, MTy); - if (Idx != -1) - return LT.first * SSE42CostTbl[Idx].Cost; - } - - if (ST.hasAVX()) { - int Idx = FindInTable(AVX1CostTbl, array_lengthof(AVX1CostTbl), ISD, MTy); - if (Idx != -1) - return LT.first * AVX1CostTbl[Idx].Cost; - } - - if (ST.hasAVX2()) { - int Idx = FindInTable(AVX2CostTbl, array_lengthof(AVX2CostTbl), ISD, MTy); - if (Idx != -1) - return LT.first * AVX2CostTbl[Idx].Cost; - } - - return VectorTargetTransformImpl::getCmpSelInstrCost(Opcode, ValTy, CondTy); -} - -unsigned X86VectorTargetTransformInfo::getCastInstrCost(unsigned Opcode, - Type *Dst, - Type *Src) const { - int ISD = InstructionOpcodeToISD(Opcode); - assert(ISD && "Invalid opcode"); - - EVT SrcTy = TLI->getValueType(Src); - EVT DstTy = TLI->getValueType(Dst); - - if (!SrcTy.isSimple() || !DstTy.isSimple()) - return VectorTargetTransformImpl::getCastInstrCost(Opcode, Dst, Src); - - const X86Subtarget &ST = TLI->getTargetMachine().getSubtarget<X86Subtarget>(); - - static const X86TypeConversionCostTblEntry AVXConversionTbl[] = { - { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i16, 1 }, - { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i16, 1 }, - { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i32, 1 }, - { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i32, 1 }, - { ISD::TRUNCATE, MVT::v4i32, MVT::v4i64, 1 }, - { ISD::TRUNCATE, MVT::v8i16, MVT::v8i32, 1 }, - { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i8, 1 }, - { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i8, 1 }, - { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i8, 1 }, - { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i8, 1 }, - { ISD::FP_TO_SINT, MVT::v8i8, MVT::v8f32, 1 }, - { ISD::FP_TO_SINT, MVT::v4i8, MVT::v4f32, 1 }, - { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 6 }, - { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 9 }, - { ISD::TRUNCATE, MVT::v8i32, MVT::v8i64, 3 }, - }; - - if (ST.hasAVX()) { - int Idx = FindInConvertTable(AVXConversionTbl, - array_lengthof(AVXConversionTbl), - ISD, DstTy.getSimpleVT(), SrcTy.getSimpleVT()); - if (Idx != -1) - return AVXConversionTbl[Idx].Cost; - } - - return VectorTargetTransformImpl::getCastInstrCost(Opcode, Dst, Src); -} - |