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| author | Bill Wendling <isanbard@gmail.com> | 2011-07-07 00:54:13 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2011-07-07 00:54:13 +0000 |
| commit | b6adf46f625cc98aaa9906420a8904d0955dac0e (patch) | |
| tree | e4cb785b4717acda481959fd74c2a81419fc48f9 /llvm/lib/MC/MCDwarf.cpp | |
| parent | 4c08a9f83815e7ec357469724cc55a4b8e8aad25 (diff) | |
| download | bcm5719-llvm-b6adf46f625cc98aaa9906420a8904d0955dac0e.tar.gz bcm5719-llvm-b6adf46f625cc98aaa9906420a8904d0955dac0e.zip | |
Add a target hook to encode the compact unwind information.
llvm-svn: 134577
Diffstat (limited to 'llvm/lib/MC/MCDwarf.cpp')
| -rw-r--r-- | llvm/lib/MC/MCDwarf.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/llvm/lib/MC/MCDwarf.cpp b/llvm/lib/MC/MCDwarf.cpp index cbdf410f218..bc900ca6e94 100644 --- a/llvm/lib/MC/MCDwarf.cpp +++ b/llvm/lib/MC/MCDwarf.cpp @@ -499,7 +499,6 @@ namespace { bool UsingCFI; bool IsEH; const MCSymbol *SectionStart; - public: FrameEmitterImpl(bool usingCFI, bool isEH, const MCSymbol *sectionStart) : CFAOffset(0), CIENum(0), UsingCFI(usingCFI), IsEH(isEH), @@ -714,6 +713,11 @@ bool FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer, // .quad __gxx_personality // .quad except_tab1 + uint32_t Encoding = + TAI.getCompactUnwindEncoding(Frame.Instructions, + getDataAlignmentFactor(Streamer), IsEH); + if (!Encoding) return false; + Streamer.SwitchSection(TAI.getCompactUnwindSection()); // Range Start @@ -728,12 +732,10 @@ bool FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer, if (VerboseAsm) Streamer.AddComment("Range Length"); Streamer.EmitAbsValue(Range, 4); - // FIXME: // Compact Encoding - const std::vector<MachineMove> &Moves = TAI.getInitialFrameState(); - uint32_t Encoding = 0; Size = getSizeForEncoding(Streamer, dwarf::DW_EH_PE_udata4); - if (VerboseAsm) Streamer.AddComment("Compact Unwind Encoding"); + if (VerboseAsm) Streamer.AddComment(Twine("Compact Unwind Encoding: 0x") + + Twine(llvm::utohexstr(Encoding))); Streamer.EmitIntValue(Encoding, Size); // Personality Function @@ -774,7 +776,7 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCStreamer &streamer, streamer.EmitLabel(sectionStart); CIENum++; - MCSymbol *sectionEnd = streamer.getContext().CreateTempSymbol(); + MCSymbol *sectionEnd = context.CreateTempSymbol(); // Length const MCExpr *Length = MakeStartMinusEndExpr(streamer, *sectionStart, |
