diff options
Diffstat (limited to 'contrib/llvm/lib/Target/ARM')
3 files changed, 70 insertions, 42 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/contrib/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp index c429ac1..fda3e81 100644 --- a/contrib/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp +++ b/contrib/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp @@ -567,10 +567,21 @@ ARMLoadStoreOpt::MergeOps(MachineBasicBlock &MBB, // MOV NewBase, Base // ADDS NewBase, #imm8. if (Base != NewBase && Offset >= 8) { + const ARMSubtarget &Subtarget = MBB.getParent()->getTarget() + .getSubtarget<ARMSubtarget>(); // Need to insert a MOV to the new base first. - BuildMI(MBB, MBBI, dl, TII->get(ARM::tMOVr), NewBase) - .addReg(Base, getKillRegState(BaseKill)) - .addImm(Pred).addReg(PredReg); + if (isARMLowRegister(NewBase) && isARMLowRegister(Base) && + !Subtarget.hasV6Ops()) { + // thumbv4t doesn't have lo->lo copies, and we can't predicate tMOVSr + if (Pred != ARMCC::AL) + return false; + BuildMI(MBB, MBBI, dl, TII->get(ARM::tMOVSr), NewBase) + .addReg(Base, getKillRegState(BaseKill)); + } else + BuildMI(MBB, MBBI, dl, TII->get(ARM::tMOVr), NewBase) + .addReg(Base, getKillRegState(BaseKill)) + .addImm(Pred).addReg(PredReg); + // Set up BaseKill and Base correctly to insert the ADDS/SUBS below. Base = NewBase; BaseKill = false; diff --git a/contrib/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/contrib/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index 6a00b28..96f3b4e 100644 --- a/contrib/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/contrib/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -9191,27 +9191,39 @@ bool ARMAsmParser::parseDirectiveCPU(SMLoc L) { // FIXME: This is duplicated in getARMFPUFeatures() in // tools/clang/lib/Driver/Tools.cpp static const struct { - const unsigned Fpu; + const unsigned ID; const uint64_t Enabled; const uint64_t Disabled; -} Fpus[] = { - {ARM::VFP, ARM::FeatureVFP2, ARM::FeatureNEON}, - {ARM::VFPV2, ARM::FeatureVFP2, ARM::FeatureNEON}, - {ARM::VFPV3, ARM::FeatureVFP3, ARM::FeatureNEON}, - {ARM::VFPV3_D16, ARM::FeatureVFP3 | ARM::FeatureD16, ARM::FeatureNEON}, - {ARM::VFPV4, ARM::FeatureVFP4, ARM::FeatureNEON}, - {ARM::VFPV4_D16, ARM::FeatureVFP4 | ARM::FeatureD16, ARM::FeatureNEON}, - {ARM::FPV5_D16, ARM::FeatureFPARMv8 | ARM::FeatureD16, - ARM::FeatureNEON | ARM::FeatureCrypto}, - {ARM::FP_ARMV8, ARM::FeatureFPARMv8, - ARM::FeatureNEON | ARM::FeatureCrypto}, - {ARM::NEON, ARM::FeatureNEON, 0}, - {ARM::NEON_VFPV4, ARM::FeatureVFP4 | ARM::FeatureNEON, 0}, - {ARM::NEON_FP_ARMV8, ARM::FeatureFPARMv8 | ARM::FeatureNEON, - ARM::FeatureCrypto}, - {ARM::CRYPTO_NEON_FP_ARMV8, - ARM::FeatureFPARMv8 | ARM::FeatureNEON | ARM::FeatureCrypto, 0}, - {ARM::SOFTVFP, 0, 0}, +} FPUs[] = { + {ARM::VFP, ARM::FeatureVFP2, ARM::FeatureNEON}, + {ARM::VFPV2, ARM::FeatureVFP2, ARM::FeatureNEON}, + {ARM::VFPV3, ARM::FeatureVFP2 | ARM::FeatureVFP3, ARM::FeatureNEON}, + {ARM::VFPV3_D16, ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureD16, + ARM::FeatureNEON}, + {ARM::VFPV4, ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4, + ARM::FeatureNEON}, + {ARM::VFPV4_D16, + ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4 | ARM::FeatureD16, + ARM::FeatureNEON}, + {ARM::FPV5_D16, ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4 | + ARM::FeatureFPARMv8 | ARM::FeatureD16, + ARM::FeatureNEON | ARM::FeatureCrypto}, + {ARM::FP_ARMV8, ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4 | + ARM::FeatureFPARMv8, + ARM::FeatureNEON | ARM::FeatureCrypto}, + {ARM::NEON, ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureNEON, 0}, + {ARM::NEON_VFPV4, + ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4 | ARM::FeatureNEON, + 0}, + {ARM::NEON_FP_ARMV8, + ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4 | + ARM::FeatureFPARMv8 | ARM::FeatureNEON, + ARM::FeatureCrypto}, + {ARM::CRYPTO_NEON_FP_ARMV8, + ARM::FeatureVFP2 | ARM::FeatureVFP3 | ARM::FeatureVFP4 | + ARM::FeatureFPARMv8 | ARM::FeatureNEON | ARM::FeatureCrypto, + 0}, + {ARM::SOFTVFP, 0, 0}, }; /// parseDirectiveFPU @@ -9229,14 +9241,14 @@ bool ARMAsmParser::parseDirectiveFPU(SMLoc L) { return false; } - for (const auto &Fpu : Fpus) { - if (Fpu.Fpu != ID) + for (const auto &Entry : FPUs) { + if (Entry.ID != ID) continue; // Need to toggle features that should be on but are off and that // should off but are on. - uint64_t Toggle = (Fpu.Enabled & ~STI.getFeatureBits()) | - (Fpu.Disabled & STI.getFeatureBits()); + uint64_t Toggle = (Entry.Enabled & ~STI.getFeatureBits()) | + (Entry.Disabled & STI.getFeatureBits()); setAvailableFeatures(ComputeAvailableFeatures(STI.ToggleFeature(Toggle))); break; } diff --git a/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp b/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp index 3187d36..7da5003 100644 --- a/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp +++ b/contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMMachObjectWriter.cpp @@ -54,10 +54,10 @@ public: : MCMachObjectTargetWriter(Is64Bit, CPUType, CPUSubtype, /*UseAggressiveSymbolFolding=*/true) {} - void RecordRelocation(MachObjectWriter *Writer, MCAssembler &Asm, - const MCAsmLayout &Layout, const MCFragment *Fragment, - const MCFixup &Fixup, MCValue Target, - uint64_t &FixedValue) override; + void RecordRelocation(MachObjectWriter *Writer, + const MCAssembler &Asm, const MCAsmLayout &Layout, + const MCFragment *Fragment, const MCFixup &Fixup, + MCValue Target, uint64_t &FixedValue) override; }; } @@ -232,7 +232,7 @@ RecordARMScatteredHalfRelocation(MachObjectWriter *Writer, (IsPCRel << 30) | MachO::R_SCATTERED); MRE.r_word1 = Value2; - Writer->addRelocation(nullptr, Fragment->getParent(), MRE); + Writer->addRelocation(Fragment->getParent(), MRE); } MachO::any_relocation_info MRE; @@ -243,7 +243,7 @@ RecordARMScatteredHalfRelocation(MachObjectWriter *Writer, (IsPCRel << 30) | MachO::R_SCATTERED); MRE.r_word1 = Value; - Writer->addRelocation(nullptr, Fragment->getParent(), MRE); + Writer->addRelocation(Fragment->getParent(), MRE); } void ARMMachObjectWriter::RecordARMScatteredRelocation(MachObjectWriter *Writer, @@ -297,7 +297,7 @@ void ARMMachObjectWriter::RecordARMScatteredRelocation(MachObjectWriter *Writer, (IsPCRel << 30) | MachO::R_SCATTERED); MRE.r_word1 = Value2; - Writer->addRelocation(nullptr, Fragment->getParent(), MRE); + Writer->addRelocation(Fragment->getParent(), MRE); } MachO::any_relocation_info MRE; @@ -307,7 +307,7 @@ void ARMMachObjectWriter::RecordARMScatteredRelocation(MachObjectWriter *Writer, (IsPCRel << 30) | MachO::R_SCATTERED); MRE.r_word1 = Value; - Writer->addRelocation(nullptr, Fragment->getParent(), MRE); + Writer->addRelocation(Fragment->getParent(), MRE); } bool ARMMachObjectWriter::requiresExternRelocation(MachObjectWriter *Writer, @@ -351,10 +351,11 @@ bool ARMMachObjectWriter::requiresExternRelocation(MachObjectWriter *Writer, } void ARMMachObjectWriter::RecordRelocation(MachObjectWriter *Writer, - MCAssembler &Asm, + const MCAssembler &Asm, const MCAsmLayout &Layout, const MCFragment *Fragment, - const MCFixup &Fixup, MCValue Target, + const MCFixup &Fixup, + MCValue Target, uint64_t &FixedValue) { unsigned IsPCRel = Writer->isFixupKindPCRel(Asm, Fixup.getKind()); unsigned Log2Size; @@ -400,8 +401,8 @@ void ARMMachObjectWriter::RecordRelocation(MachObjectWriter *Writer, // See <reloc.h>. uint32_t FixupOffset = Layout.getFragmentOffset(Fragment)+Fixup.getOffset(); unsigned Index = 0; + unsigned IsExtern = 0; unsigned Type = 0; - const MCSymbolData *RelSymbol = nullptr; if (Target.isAbsolute()) { // constant // FIXME! @@ -421,7 +422,8 @@ void ARMMachObjectWriter::RecordRelocation(MachObjectWriter *Writer, // Check whether we need an external or internal relocation. if (requiresExternRelocation(Writer, Asm, *Fragment, RelocType, SD, FixedValue)) { - RelSymbol = SD; + IsExtern = 1; + Index = SD->getIndex(); // For external relocations, make sure to offset the fixup value to // compensate for the addend of the symbol address, if it was @@ -445,8 +447,11 @@ void ARMMachObjectWriter::RecordRelocation(MachObjectWriter *Writer, // struct relocation_info (8 bytes) MachO::any_relocation_info MRE; MRE.r_word0 = FixupOffset; - MRE.r_word1 = - (Index << 0) | (IsPCRel << 24) | (Log2Size << 25) | (Type << 28); + MRE.r_word1 = ((Index << 0) | + (IsPCRel << 24) | + (Log2Size << 25) | + (IsExtern << 27) | + (Type << 28)); // Even when it's not a scattered relocation, movw/movt always uses // a PAIR relocation. @@ -471,10 +476,10 @@ void ARMMachObjectWriter::RecordRelocation(MachObjectWriter *Writer, (Log2Size << 25) | (MachO::ARM_RELOC_PAIR << 28)); - Writer->addRelocation(nullptr, Fragment->getParent(), MREPair); + Writer->addRelocation(Fragment->getParent(), MREPair); } - Writer->addRelocation(RelSymbol, Fragment->getParent(), MRE); + Writer->addRelocation(Fragment->getParent(), MRE); } MCObjectWriter *llvm::createARMMachObjectWriter(raw_ostream &OS, |
