diff options
Diffstat (limited to 'lib/CodeGen/AsmPrinter/AsmPrinter.cpp')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp index 5f15ac1d503b..9f6caa95a9ed 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp @@ -108,7 +108,7 @@ static unsigned getGVAlignmentLog2(const GlobalValue *GV, const DataLayout &DL, AsmPrinter::AsmPrinter(TargetMachine &tm, std::unique_ptr<MCStreamer> Streamer) : MachineFunctionPass(ID), TM(tm), MAI(tm.getMCAsmInfo()), OutContext(Streamer->getContext()), OutStreamer(std::move(Streamer)), - LastMI(nullptr), LastFn(0), Counter(~0U) { + isCFIMoveForDebugging(false), LastMI(nullptr), LastFn(0), Counter(~0U) { DD = nullptr; MMI = nullptr; LI = nullptr; @@ -264,6 +264,28 @@ bool AsmPrinter::doInitialization(Module &M) { } } + switch (MAI->getExceptionHandlingType()) { + case ExceptionHandling::SjLj: + case ExceptionHandling::DwarfCFI: + case ExceptionHandling::ARM: + isCFIMoveForDebugging = true; + if (MAI->getExceptionHandlingType() != ExceptionHandling::DwarfCFI) + break; + for (auto &F: M.getFunctionList()) { + // If the module contains any function with unwind data, + // .eh_frame has to be emitted. + // Ignore functions that won't get emitted. + if (!F.isDeclarationForLinker() && F.needsUnwindTableEntry()) { + isCFIMoveForDebugging = false; + break; + } + } + break; + default: + isCFIMoveForDebugging = false; + break; + } + EHStreamer *ES = nullptr; switch (MAI->getExceptionHandlingType()) { case ExceptionHandling::None: |