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| author | Anton Korobeynikov <asl@math.spbu.ru> | 2008-03-22 21:04:01 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2008-03-22 21:04:01 +0000 |
| commit | 1dcce2148d855af67f845319414a94db5601be3e (patch) | |
| tree | 7367d3b31c0a9d3e059ccbbf72caf42d18cecf1a /lib/Target/X86/X86RegisterInfo.cpp | |
| parent | 1a979d9eab68b353208cdff87b09ff703d5bf15d (diff) | |
| download | llvm-1dcce2148d855af67f845319414a94db5601be3e.tar.gz llvm-1dcce2148d855af67f845319414a94db5601be3e.tar.bz2 llvm-1dcce2148d855af67f845319414a94db5601be3e.tar.xz | |
Add information about callee-saved registers on Win64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48692 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index f905ffa452..234c24b6af 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -45,6 +45,7 @@ X86RegisterInfo::X86RegisterInfo(X86TargetMachine &tm, // Cache some information. const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>(); Is64Bit = Subtarget->is64Bit(); + IsWin64 = Subtarget->isTargetWin64(); StackAlign = TM.getFrameInfo()->getStackAlignment(); if (Is64Bit) { SlotSize = 8; @@ -196,9 +197,17 @@ X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { X86::RBX, X86::R12, X86::R13, X86::R14, X86::R15, X86::RBP, 0 }; - if (Is64Bit) - return CalleeSavedRegs64Bit; - else { + static const unsigned CalleeSavedRegsWin64[] = { + X86::RBX, X86::RBP, X86::RDI, X86::RSI, + X86::R12, X86::R13, X86::R14, X86::R15, 0 + }; + + if (Is64Bit) { + if (IsWin64) + return CalleeSavedRegsWin64; + else + return CalleeSavedRegs64Bit; + } else { if (MF) { MachineFrameInfo *MFI = MF->getFrameInfo(); MachineModuleInfo *MMI = MFI->getMachineModuleInfo(); @@ -225,10 +234,19 @@ X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const { &X86::GR64RegClass, &X86::GR64RegClass, &X86::GR64RegClass, &X86::GR64RegClass, 0 }; + static const TargetRegisterClass * const CalleeSavedRegClassesWin64[] = { + &X86::GR64RegClass, &X86::GR64RegClass, + &X86::GR64RegClass, &X86::GR64RegClass, + &X86::GR64RegClass, &X86::GR64RegClass, + &X86::GR64RegClass, &X86::GR64RegClass, 0 + }; - if (Is64Bit) - return CalleeSavedRegClasses64Bit; - else { + if (Is64Bit) { + if (IsWin64) + return CalleeSavedRegClassesWin64; + else + return CalleeSavedRegClasses64Bit; + } else { if (MF) { MachineFrameInfo *MFI = MF->getFrameInfo(); MachineModuleInfo *MMI = MFI->getMachineModuleInfo(); |