diff options
Diffstat (limited to 'contrib/llvm-project/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp')
| -rw-r--r-- | contrib/llvm-project/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp | 80 |
1 files changed, 69 insertions, 11 deletions
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/contrib/llvm-project/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp index 2badbe34ae6a..e760564779c2 100644 --- a/contrib/llvm-project/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp +++ b/contrib/llvm-project/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp @@ -58,6 +58,7 @@ #include "llvm/MC/MCValue.h" #include "llvm/MC/SectionKind.h" #include "llvm/ProfileData/InstrProf.h" +#include "llvm/Support/Base64.h" #include "llvm/Support/Casting.h" #include "llvm/Support/CodeGen.h" #include "llvm/Support/ErrorHandling.h" @@ -127,7 +128,7 @@ void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx, if (Ctx.getAsmInfo()->getExceptionHandlingType() == ExceptionHandling::ARM) break; // Fallthrough if not using EHABI - LLVM_FALLTHROUGH; + [[fallthrough]]; case Triple::ppc: case Triple::ppcle: case Triple::x86: @@ -289,6 +290,14 @@ void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx, TTypeEncoding = dwarf::DW_EH_PE_absptr; } break; + case Triple::loongarch32: + case Triple::loongarch64: + LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; + PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | + dwarf::DW_EH_PE_sdata4; + TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | + dwarf::DW_EH_PE_sdata4; + break; default: break; } @@ -358,6 +367,31 @@ void TargetLoweringObjectFileELF::emitModuleMetadata(MCStreamer &Streamer, } } + if (NamedMDNode *LLVMStats = M.getNamedMetadata("llvm.stats")) { + // Emit the metadata for llvm statistics into .llvm_stats section, which is + // formatted as a list of key/value pair, the value is base64 encoded. + auto *S = C.getObjectFileInfo()->getLLVMStatsSection(); + Streamer.switchSection(S); + for (const auto *Operand : LLVMStats->operands()) { + const auto *MD = cast<MDNode>(Operand); + assert(MD->getNumOperands() % 2 == 0 && + ("Operand num should be even for a list of key/value pair")); + for (size_t I = 0; I < MD->getNumOperands(); I += 2) { + // Encode the key string size. + auto *Key = cast<MDString>(MD->getOperand(I)); + Streamer.emitULEB128IntValue(Key->getString().size()); + Streamer.emitBytes(Key->getString()); + // Encode the value into a Base64 string. + std::string Value = encodeBase64( + Twine(mdconst::dyn_extract<ConstantInt>(MD->getOperand(I + 1)) + ->getZExtValue()) + .str()); + Streamer.emitULEB128IntValue(Value.size()); + Streamer.emitBytes(Value); + } + } + } + unsigned Version = 0; unsigned Flags = 0; StringRef Section; @@ -400,7 +434,7 @@ void TargetLoweringObjectFileELF::emitPersonalityValue( ELF::SHT_PROGBITS, Flags, 0); unsigned Size = DL.getPointerSize(); Streamer.switchSection(Sec); - Streamer.emitValueToAlignment(DL.getPointerABIAlignment(0).value()); + Streamer.emitValueToAlignment(DL.getPointerABIAlignment(0)); Streamer.emitSymbolAttribute(Label, MCSA_ELF_TypeObject); const MCExpr *E = MCConstantExpr::create(Size, getContext()); Streamer.emitELFSize(Label, E); @@ -636,7 +670,7 @@ getELFSectionNameForGlobal(const GlobalObject *GO, SectionKind Kind, bool HasPrefix = false; if (const auto *F = dyn_cast<Function>(GO)) { - if (Optional<StringRef> Prefix = F->getSectionPrefix()) { + if (std::optional<StringRef> Prefix = F->getSectionPrefix()) { raw_svector_ostream(Name) << '.' << *Prefix; HasPrefix = true; } @@ -1686,7 +1720,7 @@ MCSection *TargetLoweringObjectFileCOFF::SelectSectionForGlobal( StringRef COMDATSymName = Sym->getName(); if (const auto *F = dyn_cast<Function>(GO)) - if (Optional<StringRef> Prefix = F->getSectionPrefix()) + if (std::optional<StringRef> Prefix = F->getSectionPrefix()) raw_svector_ostream(Name) << '$' << *Prefix; // Append "$symbol" to the section name *before* IR-level mangling is @@ -1889,11 +1923,24 @@ static MCSectionCOFF *getCOFFStaticStructorSection(MCContext &Ctx, // string that sorts between .CRT$XCA and .CRT$XCU. In the general case, we // make a name like ".CRT$XCT12345", since that runs before .CRT$XCU. Really // low priorities need to sort before 'L', since the CRT uses that - // internally, so we use ".CRT$XCA00001" for them. + // internally, so we use ".CRT$XCA00001" for them. We have a contract with + // the frontend that "init_seg(compiler)" corresponds to priority 200 and + // "init_seg(lib)" corresponds to priority 400, and those respectively use + // 'C' and 'L' without the priority suffix. Priorities between 200 and 400 + // use 'C' with the priority as a suffix. SmallString<24> Name; + char LastLetter = 'T'; + bool AddPrioritySuffix = Priority != 200 && Priority != 400; + if (Priority < 200) + LastLetter = 'A'; + else if (Priority < 400) + LastLetter = 'C'; + else if (Priority == 400) + LastLetter = 'L'; raw_svector_ostream OS(Name); - OS << ".CRT$X" << (IsCtor ? "C" : "T") << - (Priority < 200 ? 'A' : 'T') << format("%05u", Priority); + OS << ".CRT$X" << (IsCtor ? "C" : "T") << LastLetter; + if (AddPrioritySuffix) + OS << format("%05u", Priority); MCSectionCOFF *Sec = Ctx.getCOFFSection( Name, COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, SectionKind::getReadOnly()); @@ -2245,16 +2292,16 @@ TargetLoweringObjectFileXCOFF::getTargetSymbol(const GlobalValue *GV, // function entry point. We choose to always return a function descriptor // here. if (const GlobalObject *GO = dyn_cast<GlobalObject>(GV)) { + if (GO->isDeclarationForLinker()) + return cast<MCSectionXCOFF>(getSectionForExternalReference(GO, TM)) + ->getQualNameSymbol(); + if (const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) if (GVar->hasAttribute("toc-data")) return cast<MCSectionXCOFF>( SectionForGlobal(GVar, SectionKind::getData(), TM)) ->getQualNameSymbol(); - if (GO->isDeclarationForLinker()) - return cast<MCSectionXCOFF>(getSectionForExternalReference(GO, TM)) - ->getQualNameSymbol(); - SectionKind GOKind = getKindForGlobal(GO, TM); if (GOKind.isText()) return cast<MCSectionXCOFF>( @@ -2313,6 +2360,10 @@ MCSection *TargetLoweringObjectFileXCOFF::getSectionForExternalReference( if (GO->isThreadLocal()) SMC = XCOFF::XMC_UL; + if (const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GO)) + if (GVar->hasAttribute("toc-data")) + SMC = XCOFF::XMC_TD; + // Externals go into a csect of type ER. return getContext().getXCOFFSection( Name, SectionKind::getMetadata(), @@ -2469,6 +2520,13 @@ void TargetLoweringObjectFileXCOFF::Initialize(MCContext &Ctx, PersonalityEncoding = 0; LSDAEncoding = 0; CallSiteEncoding = dwarf::DW_EH_PE_udata4; + + // AIX debug for thread local location is not ready. And for integrated as + // mode, the relocatable address for the thread local variable will cause + // linker error. So disable the location attribute generation for thread local + // variables for now. + // FIXME: when TLS debug on AIX is ready, remove this setting. + SupportDebugThreadLocalLocation = false; } MCSection *TargetLoweringObjectFileXCOFF::getStaticCtorSection( |