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| author | Chris Lattner <sabre@nondot.org> | 2010-03-11 00:22:57 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-03-11 00:22:57 +0000 |
| commit | a179e4d0a8029bb4004d92343fb2c110f77060d7 (patch) | |
| tree | 0c2f2ffe1996549308d8b14a9ada2f7fc326b6fc /llvm/lib/Target/X86/X86RegisterInfo.cpp | |
| parent | aa87b4eab1ad673ec2cb5189e2cfc5776b2b35c8 (diff) | |
| download | bcm5719-llvm-a179e4d0a8029bb4004d92343fb2c110f77060d7.tar.gz bcm5719-llvm-a179e4d0a8029bb4004d92343fb2c110f77060d7.zip | |
add support, testcases, and dox for the new GHC calling
convention. Patch by David Terei!
llvm-svn: 98212
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 |
