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| author | Charles Davis <cdavis@mines.edu> | 2011-05-24 16:57:53 +0000 |
|---|---|---|
| committer | Charles Davis <cdavis@mines.edu> | 2011-05-24 16:57:53 +0000 |
| commit | 6b918b84661687f7b5fc92dabd6d58e258bf39f2 (patch) | |
| tree | ef670fc75049e8d04d923d71b359a9fc13324132 /lib/Target/X86/X86RegisterInfo.cpp | |
| parent | 13a16083abcdacf2ee44ae95b084f87937ea9ace (diff) | |
| download | external_llvm-6b918b84661687f7b5fc92dabd6d58e258bf39f2.zip external_llvm-6b918b84661687f7b5fc92dabd6d58e258bf39f2.tar.gz external_llvm-6b918b84661687f7b5fc92dabd6d58e258bf39f2.tar.bz2 | |
Add a method to TargetRegisterInfo to get the register number that the Win64 EH
scheme uses internally. Implement it for x86 (the only architecture that LLVM
supports for which this matters right now).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131969 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index f87745f..fc1b8cf 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -96,6 +96,27 @@ int X86RegisterInfo::getDwarfRegNum(unsigned RegNo, bool isEH) const { return X86GenRegisterInfo::getDwarfRegNumFull(RegNo, Flavour); } +int +X86RegisterInfo::getSEHRegNum(unsigned i) const { + int reg = getX86RegNum(i); + switch (i) { + case X86::R8: case X86::R8D: case X86::R8W: case X86::R8B: + case X86::R9: case X86::R9D: case X86::R9W: case X86::R9B: + case X86::R10: case X86::R10D: case X86::R10W: case X86::R10B: + case X86::R11: case X86::R11D: case X86::R11W: case X86::R11B: + case X86::R12: case X86::R12D: case X86::R12W: case X86::R12B: + case X86::R13: case X86::R13D: case X86::R13W: case X86::R13B: + case X86::R14: case X86::R14D: case X86::R14W: case X86::R14B: + case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B: + case X86::XMM8: case X86::XMM9: case X86::XMM10: case X86::XMM11: + case X86::XMM12: case X86::XMM13: case X86::XMM14: case X86::XMM15: + case X86::YMM8: case X86::YMM9: case X86::YMM10: case X86::YMM11: + case X86::YMM12: case X86::YMM13: case X86::YMM14: case X86::YMM15: + reg += 8; + } + return reg; +} + /// getX86RegNum - This function maps LLVM register identifiers to their X86 /// specific numbering, which is used in various places encoding instructions. unsigned X86RegisterInfo::getX86RegNum(unsigned RegNo) { |