diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp index cdb579c5387..3c087bdeb98 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.cpp +++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp @@ -294,13 +294,20 @@ X86RegisterInfo::getCrossCopyRegClass(const TargetRegisterClass *RC) const { const unsigned * X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { bool callsEHReturn = false; + bool ghcCall = false; if (MF) { const MachineFrameInfo *MFI = MF->getFrameInfo(); const MachineModuleInfo *MMI = MFI->getMachineModuleInfo(); callsEHReturn = (MMI ? MMI->callsEHReturn() : false); + const Function *F = MF->getFunction(); + ghcCall = (F ? F->getCallingConv() == CallingConv::GHC : false); } + static const unsigned GhcCalleeSavedRegs[] = { + 0 + }; + static const unsigned CalleeSavedRegs32Bit[] = { X86::ESI, X86::EDI, X86::EBX, X86::EBP, 0 }; @@ -326,7 +333,9 @@ X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { X86::XMM14, X86::XMM15, 0 }; - if (Is64Bit) { + if (ghcCall) { + return GhcCalleeSavedRegs; + } else if (Is64Bit) { if (IsWin64) return CalleeSavedRegsWin64; else |
