diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp b/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp index 6d2dd8309a05..dcd81e3d6249 100644 --- a/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp +++ b/contrib/llvm/lib/Target/Sparc/MCTargetDesc/SparcAsmBackend.cpp @@ -8,11 +8,13 @@ //===----------------------------------------------------------------------===// #include "llvm/MC/MCAsmBackend.h" -#include "MCTargetDesc/SparcMCTargetDesc.h" #include "MCTargetDesc/SparcFixupKinds.h" +#include "MCTargetDesc/SparcMCTargetDesc.h" #include "llvm/MC/MCELFObjectWriter.h" +#include "llvm/MC/MCExpr.h" #include "llvm/MC/MCFixupKindInfo.h" #include "llvm/MC/MCObjectWriter.h" +#include "llvm/MC/MCValue.h" #include "llvm/Support/TargetRegistry.h" using namespace llvm; @@ -37,6 +39,12 @@ static unsigned adjustFixupValue(unsigned Kind, uint64_t Value) { case Sparc::fixup_sparc_br19: return (Value >> 2) & 0x7ffff; + case Sparc::fixup_sparc_br16_2: + return (Value >> 2) & 0xc000; + + case Sparc::fixup_sparc_br16_14: + return (Value >> 2) & 0x3fff; + case Sparc::fixup_sparc_pc22: case Sparc::fixup_sparc_got22: case Sparc::fixup_sparc_tls_gd_hi22: @@ -94,16 +102,18 @@ namespace { public: SparcAsmBackend(const Target &T) : MCAsmBackend(), TheTarget(T) {} - unsigned getNumFixupKinds() const { + unsigned getNumFixupKinds() const override { return Sparc::NumTargetFixupKinds; } - const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const { + const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override { const static MCFixupKindInfo Infos[Sparc::NumTargetFixupKinds] = { // name offset bits flags { "fixup_sparc_call30", 2, 30, MCFixupKindInfo::FKF_IsPCRel }, { "fixup_sparc_br22", 10, 22, MCFixupKindInfo::FKF_IsPCRel }, { "fixup_sparc_br19", 13, 19, MCFixupKindInfo::FKF_IsPCRel }, + { "fixup_sparc_br16_2", 10, 2, MCFixupKindInfo::FKF_IsPCRel }, + { "fixup_sparc_br16_14", 18, 14, MCFixupKindInfo::FKF_IsPCRel }, { "fixup_sparc_hi22", 10, 22, 0 }, { "fixup_sparc_lo10", 22, 10, 0 }, { "fixup_sparc_h44", 10, 22, 0 }, @@ -144,16 +154,15 @@ namespace { return Infos[Kind - FirstTargetFixupKind]; } - void processFixupValue(const MCAssembler &Asm, - const MCAsmLayout &Layout, - const MCFixup &Fixup, - const MCFragment *DF, - MCValue & Target, - uint64_t &Value, - bool &IsResolved) { + void processFixupValue(const MCAssembler &Asm, const MCAsmLayout &Layout, + const MCFixup &Fixup, const MCFragment *DF, + const MCValue &Target, uint64_t &Value, + bool &IsResolved) override { switch ((Sparc::Fixups)Fixup.getKind()) { default: break; case Sparc::fixup_sparc_wplt30: + if (Target.getSymA()->getSymbol().isTemporary()) + return; case Sparc::fixup_sparc_tls_gd_hi22: case Sparc::fixup_sparc_tls_gd_lo10: case Sparc::fixup_sparc_tls_gd_add: @@ -175,7 +184,7 @@ namespace { } } - bool mayNeedRelaxation(const MCInst &Inst) const { + bool mayNeedRelaxation(const MCInst &Inst) const override { // FIXME. return false; } @@ -185,20 +194,25 @@ namespace { bool fixupNeedsRelaxation(const MCFixup &Fixup, uint64_t Value, const MCRelaxableFragment *DF, - const MCAsmLayout &Layout) const { + const MCAsmLayout &Layout) const override { // FIXME. - assert(0 && "fixupNeedsRelaxation() unimplemented"); + llvm_unreachable("fixupNeedsRelaxation() unimplemented"); return false; } - void relaxInstruction(const MCInst &Inst, MCInst &Res) const { + void relaxInstruction(const MCInst &Inst, MCInst &Res) const override { // FIXME. - assert(0 && "relaxInstruction() unimplemented"); + llvm_unreachable("relaxInstruction() unimplemented"); } - bool writeNopData(uint64_t Count, MCObjectWriter *OW) const { - // FIXME: Zero fill for now. - for (uint64_t i = 0; i != Count; ++i) - OW->Write8(0); + bool writeNopData(uint64_t Count, MCObjectWriter *OW) const override { + // Cannot emit NOP with size not multiple of 32 bits. + if (Count % 4 != 0) + return false; + + uint64_t NumNops = Count / 4; + for (uint64_t i = 0; i != NumNops; ++i) + OW->Write32(0x01000000); + return true; } @@ -215,7 +229,7 @@ namespace { SparcAsmBackend(T), OSType(OSType) { } void applyFixup(const MCFixup &Fixup, char *Data, unsigned DataSize, - uint64_t Value) const { + uint64_t Value, bool IsPCRel) const override { Value = adjustFixupValue(Fixup.getKind(), Value); if (!Value) return; // Doesn't change encoding. @@ -230,14 +244,10 @@ namespace { } - MCObjectWriter *createObjectWriter(raw_ostream &OS) const { + MCObjectWriter *createObjectWriter(raw_ostream &OS) const override { uint8_t OSABI = MCELFObjectTargetWriter::getOSABI(OSType); return createSparcELFObjectWriter(OS, is64Bit(), OSABI); } - - virtual bool doesSectionRequireSymbols(const MCSection &Section) const { - return false; - } }; } // end anonymous namespace |