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| author | NAKAMURA Takumi <geek4civic@gmail.com> | 2011-01-26 02:04:09 +0000 |
|---|---|---|
| committer | NAKAMURA Takumi <geek4civic@gmail.com> | 2011-01-26 02:04:09 +0000 |
| commit | 0cfdac078ec50e1d445436714b6816064125aac6 (patch) | |
| tree | 9f3c57282aec7f5312fa96793ac1200bdcf44508 /llvm/lib/Target/X86/X86RegisterInfo.cpp | |
| parent | 31aafbd5013ca93e4ae8f8eeff7ed83eb29239df (diff) | |
| download | bcm5719-llvm-0cfdac078ec50e1d445436714b6816064125aac6.tar.gz bcm5719-llvm-0cfdac078ec50e1d445436714b6816064125aac6.zip | |
Target/X86: Tweak win64's tailcall.
llvm-svn: 124272
Diffstat (limited to 'llvm/lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp index f41be0cfe5a..2f6bd88c652 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.cpp +++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp @@ -320,6 +320,12 @@ X86RegisterInfo::getPointerRegClass(unsigned Kind) const { if (TM.getSubtarget<X86Subtarget>().is64Bit()) return &X86::GR64_NOSPRegClass; return &X86::GR32_NOSPRegClass; + case 2: // Available for tailcall (not callee-saved GPRs). + if (TM.getSubtarget<X86Subtarget>().isTargetWin64()) + return &X86::GR64_TCW64RegClass; + if (TM.getSubtarget<X86Subtarget>().is64Bit()) + return &X86::GR64_TCRegClass; + return &X86::GR32_TCRegClass; } } |
