diff options
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp index e57ed24..2ebccee 100644 --- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp @@ -628,10 +628,15 @@ void CodeViewDebug::beginModule(Module *M) { // When emitting only compiler information, we may have only NoDebug CUs, // which would be skipped by debug_compile_units_begin. NamedMDNode *CUs = MMI->getModule()->getNamedMetadata("llvm.dbg.cu"); + if (CUs->operands().empty()) { + Asm = nullptr; + return; + } Node = *CUs->operands().begin(); } - const auto *CU = cast<DICompileUnit>(Node); - DISourceLanguageName Lang = CU->getSourceLanguage(); + + TheCU = cast<DICompileUnit>(Node); + DISourceLanguageName Lang = TheCU->getSourceLanguage(); CurrentSourceLanguage = Lang.hasVersionedName() ? MapDWARFLanguageToCVLang( @@ -639,7 +644,7 @@ void CodeViewDebug::beginModule(Module *M) { : MapDWARFLanguageToCVLang( static_cast<dwarf::SourceLanguage>(Lang.getName())); if (!M->getCodeViewFlag() || - CU->getEmissionKind() == DICompileUnit::NoDebug) { + TheCU->getEmissionKind() == DICompileUnit::NoDebug) { Asm = nullptr; return; } @@ -900,11 +905,10 @@ void CodeViewDebug::emitCompilerInformation() { OS.AddComment("CPUType"); OS.emitInt16(static_cast<uint64_t>(TheCPU)); - NamedMDNode *CUs = MMI->getModule()->getNamedMetadata("llvm.dbg.cu"); - const MDNode *Node = *CUs->operands().begin(); - const auto *CU = cast<DICompileUnit>(Node); + StringRef CompilerVersion = "0"; + if (TheCU) + CompilerVersion = TheCU->getProducer(); - StringRef CompilerVersion = CU->getProducer(); Version FrontVer = parseVersion(CompilerVersion); OS.AddComment("Frontend version"); for (int N : FrontVer.Part) { |