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Preliminary patch to improve dwarf EH generation - Hooks to return Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96285 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2010-02-15 22:35:59 +00:00
parent 6a7cb63f6f
commit 9184b25fa5
20 changed files with 470 additions and 297 deletions
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12
lib/Target/X86/X86TargetMachine.h
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@@ -62,18 +62,6 @@ public:
return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
}
/// getLSDAEncoding - Returns the LSDA pointer encoding. The choices are
/// 4-byte, 8-byte, and target default. The CIE is hard-coded to indicate that
/// the LSDA pointer in the FDE section is an "sdata4", and should be encoded
/// as a 4-byte pointer by default. However, some systems may require a
/// different size due to bugs or other conditions. We will default to a
/// 4-byte encoding unless the system tells us otherwise.
///
/// FIXME: This call-back isn't good! We should be using the correct encoding
/// regardless of the system. However, there are some systems which have bugs
/// that prevent this from occuring.
virtual DwarfLSDAEncoding::Encoding getLSDAEncoding() const;
// Set up the pass pipeline.
virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);