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Diffstat (limited to 'contrib/llvm/lib/Target/SystemZ/SystemZ.h')
-rw-r--r-- | contrib/llvm/lib/Target/SystemZ/SystemZ.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/SystemZ/SystemZ.h b/contrib/llvm/lib/Target/SystemZ/SystemZ.h new file mode 100644 index 000000000000..9a8e508e4119 --- /dev/null +++ b/contrib/llvm/lib/Target/SystemZ/SystemZ.h @@ -0,0 +1,185 @@ +//==- SystemZ.h - Top-Level Interface for SystemZ representation -*- C++ -*-==// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains the entry points for global functions defined in +// the LLVM SystemZ backend. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H +#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZ_H + +#include "MCTargetDesc/SystemZMCTargetDesc.h" +#include "llvm/Support/CodeGen.h" + +namespace llvm { +class SystemZTargetMachine; +class FunctionPass; + +namespace SystemZ { +// Condition-code mask values. +const unsigned CCMASK_0 = 1 << 3; +const unsigned CCMASK_1 = 1 << 2; +const unsigned CCMASK_2 = 1 << 1; +const unsigned CCMASK_3 = 1 << 0; +const unsigned CCMASK_ANY = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3; + +// Condition-code mask assignments for integer and floating-point +// comparisons. +const unsigned CCMASK_CMP_EQ = CCMASK_0; +const unsigned CCMASK_CMP_LT = CCMASK_1; +const unsigned CCMASK_CMP_GT = CCMASK_2; +const unsigned CCMASK_CMP_NE = CCMASK_CMP_LT | CCMASK_CMP_GT; +const unsigned CCMASK_CMP_LE = CCMASK_CMP_EQ | CCMASK_CMP_LT; +const unsigned CCMASK_CMP_GE = CCMASK_CMP_EQ | CCMASK_CMP_GT; + +// Condition-code mask assignments for floating-point comparisons only. +const unsigned CCMASK_CMP_UO = CCMASK_3; +const unsigned CCMASK_CMP_O = CCMASK_ANY ^ CCMASK_CMP_UO; + +// All condition-code values produced by comparisons. +const unsigned CCMASK_ICMP = CCMASK_0 | CCMASK_1 | CCMASK_2; +const unsigned CCMASK_FCMP = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3; + +// Condition-code mask assignments for CS. +const unsigned CCMASK_CS_EQ = CCMASK_0; +const unsigned CCMASK_CS_NE = CCMASK_1; +const unsigned CCMASK_CS = CCMASK_0 | CCMASK_1; + +// Condition-code mask assignments for a completed SRST loop. +const unsigned CCMASK_SRST_FOUND = CCMASK_1; +const unsigned CCMASK_SRST_NOTFOUND = CCMASK_2; +const unsigned CCMASK_SRST = CCMASK_1 | CCMASK_2; + +// Condition-code mask assignments for TEST UNDER MASK. +const unsigned CCMASK_TM_ALL_0 = CCMASK_0; +const unsigned CCMASK_TM_MIXED_MSB_0 = CCMASK_1; +const unsigned CCMASK_TM_MIXED_MSB_1 = CCMASK_2; +const unsigned CCMASK_TM_ALL_1 = CCMASK_3; +const unsigned CCMASK_TM_SOME_0 = CCMASK_TM_ALL_1 ^ CCMASK_ANY; +const unsigned CCMASK_TM_SOME_1 = CCMASK_TM_ALL_0 ^ CCMASK_ANY; +const unsigned CCMASK_TM_MSB_0 = CCMASK_0 | CCMASK_1; +const unsigned CCMASK_TM_MSB_1 = CCMASK_2 | CCMASK_3; +const unsigned CCMASK_TM = CCMASK_ANY; + +// Condition-code mask assignments for TRANSACTION_BEGIN. +const unsigned CCMASK_TBEGIN_STARTED = CCMASK_0; +const unsigned CCMASK_TBEGIN_INDETERMINATE = CCMASK_1; +const unsigned CCMASK_TBEGIN_TRANSIENT = CCMASK_2; +const unsigned CCMASK_TBEGIN_PERSISTENT = CCMASK_3; +const unsigned CCMASK_TBEGIN = CCMASK_ANY; + +// Condition-code mask assignments for TRANSACTION_END. +const unsigned CCMASK_TEND_TX = CCMASK_0; +const unsigned CCMASK_TEND_NOTX = CCMASK_2; +const unsigned CCMASK_TEND = CCMASK_TEND_TX | CCMASK_TEND_NOTX; + +// Condition-code mask assignments for vector comparisons (and similar +// operations). +const unsigned CCMASK_VCMP_ALL = CCMASK_0; +const unsigned CCMASK_VCMP_MIXED = CCMASK_1; +const unsigned CCMASK_VCMP_NONE = CCMASK_3; +const unsigned CCMASK_VCMP = CCMASK_0 | CCMASK_1 | CCMASK_3; + +// Condition-code mask assignments for Test Data Class. +const unsigned CCMASK_TDC_NOMATCH = CCMASK_0; +const unsigned CCMASK_TDC_MATCH = CCMASK_1; +const unsigned CCMASK_TDC = CCMASK_TDC_NOMATCH | CCMASK_TDC_MATCH; + +// The position of the low CC bit in an IPM result. +const unsigned IPM_CC = 28; + +// Mask assignments for PFD. +const unsigned PFD_READ = 1; +const unsigned PFD_WRITE = 2; + +// Mask assignments for TDC +const unsigned TDCMASK_ZERO_PLUS = 0x800; +const unsigned TDCMASK_ZERO_MINUS = 0x400; +const unsigned TDCMASK_NORMAL_PLUS = 0x200; +const unsigned TDCMASK_NORMAL_MINUS = 0x100; +const unsigned TDCMASK_SUBNORMAL_PLUS = 0x080; +const unsigned TDCMASK_SUBNORMAL_MINUS = 0x040; +const unsigned TDCMASK_INFINITY_PLUS = 0x020; +const unsigned TDCMASK_INFINITY_MINUS = 0x010; +const unsigned TDCMASK_QNAN_PLUS = 0x008; +const unsigned TDCMASK_QNAN_MINUS = 0x004; +const unsigned TDCMASK_SNAN_PLUS = 0x002; +const unsigned TDCMASK_SNAN_MINUS = 0x001; + +const unsigned TDCMASK_ZERO = TDCMASK_ZERO_PLUS | TDCMASK_ZERO_MINUS; +const unsigned TDCMASK_POSITIVE = TDCMASK_NORMAL_PLUS | + TDCMASK_SUBNORMAL_PLUS | + TDCMASK_INFINITY_PLUS; +const unsigned TDCMASK_NEGATIVE = TDCMASK_NORMAL_MINUS | + TDCMASK_SUBNORMAL_MINUS | + TDCMASK_INFINITY_MINUS; +const unsigned TDCMASK_NAN = TDCMASK_QNAN_PLUS | + TDCMASK_QNAN_MINUS | + TDCMASK_SNAN_PLUS | + TDCMASK_SNAN_MINUS; +const unsigned TDCMASK_PLUS = TDCMASK_POSITIVE | + TDCMASK_ZERO_PLUS | + TDCMASK_QNAN_PLUS | + TDCMASK_SNAN_PLUS; +const unsigned TDCMASK_MINUS = TDCMASK_NEGATIVE | + TDCMASK_ZERO_MINUS | + TDCMASK_QNAN_MINUS | + TDCMASK_SNAN_MINUS; +const unsigned TDCMASK_ALL = TDCMASK_PLUS | TDCMASK_MINUS; + +// Number of bits in a vector register. +const unsigned VectorBits = 128; + +// Number of bytes in a vector register (and consequently the number of +// bytes in a general permute vector). +const unsigned VectorBytes = VectorBits / 8; + +// Return true if Val fits an LLILL operand. +static inline bool isImmLL(uint64_t Val) { + return (Val & ~0x000000000000ffffULL) == 0; +} + +// Return true if Val fits an LLILH operand. +static inline bool isImmLH(uint64_t Val) { + return (Val & ~0x00000000ffff0000ULL) == 0; +} + +// Return true if Val fits an LLIHL operand. +static inline bool isImmHL(uint64_t Val) { + return (Val & ~0x00000ffff00000000ULL) == 0; +} + +// Return true if Val fits an LLIHH operand. +static inline bool isImmHH(uint64_t Val) { + return (Val & ~0xffff000000000000ULL) == 0; +} + +// Return true if Val fits an LLILF operand. +static inline bool isImmLF(uint64_t Val) { + return (Val & ~0x00000000ffffffffULL) == 0; +} + +// Return true if Val fits an LLIHF operand. +static inline bool isImmHF(uint64_t Val) { + return (Val & ~0xffffffff00000000ULL) == 0; +} +} // end namespace SystemZ + +FunctionPass *createSystemZISelDag(SystemZTargetMachine &TM, + CodeGenOpt::Level OptLevel); +FunctionPass *createSystemZElimComparePass(SystemZTargetMachine &TM); +FunctionPass *createSystemZExpandPseudoPass(SystemZTargetMachine &TM); +FunctionPass *createSystemZShortenInstPass(SystemZTargetMachine &TM); +FunctionPass *createSystemZLongBranchPass(SystemZTargetMachine &TM); +FunctionPass *createSystemZLDCleanupPass(SystemZTargetMachine &TM); +FunctionPass *createSystemZTDCPass(); +} // end namespace llvm + +#endif |