diff options
Diffstat (limited to 'lib/Target/PowerPC/PPCFrameLowering.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCFrameLowering.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/PowerPC/PPCFrameLowering.cpp b/lib/Target/PowerPC/PPCFrameLowering.cpp index 6aca6b0..375e000 100644 --- a/lib/Target/PowerPC/PPCFrameLowering.cpp +++ b/lib/Target/PowerPC/PPCFrameLowering.cpp @@ -259,8 +259,7 @@ void PPCFrameLowering::emitPrologue(MachineFunction &MF) const { MachineModuleInfo &MMI = MF.getMMI(); DebugLoc dl; bool needsFrameMoves = MMI.hasDebugInfo() || - !MF.getFunction()->doesNotThrow() || - UnwindTablesMandatory; + MF.getFunction()->needsUnwindTableEntry(); // Prepare for frame info. MCSymbol *FrameLabel = 0; @@ -488,6 +487,14 @@ void PPCFrameLowering::emitPrologue(MachineFunction &MF) const { int Offset = MFI->getObjectOffset(CSI[I].getFrameIdx()); unsigned Reg = CSI[I].getReg(); if (Reg == PPC::LR || Reg == PPC::LR8 || Reg == PPC::RM) continue; + + // This is a bit of a hack: CR2LT, CR2GT, CR2EQ and CR2UN are just + // subregisters of CR2. We just need to emit a move of CR2. + if (Reg == PPC::CR2LT || Reg == PPC::CR2GT || Reg == PPC::CR2EQ) + continue; + if (Reg == PPC::CR2UN) + Reg = PPC::CR2; + MachineLocation CSDst(MachineLocation::VirtualFP, Offset); MachineLocation CSSrc(Reg); Moves.push_back(MachineMove(Label, CSDst, CSSrc)); |
