diff options
Diffstat (limited to 'lib/Target/Sparc/SparcRegisterInfo.cpp')
| -rw-r--r-- | lib/Target/Sparc/SparcRegisterInfo.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp index a5297dc..e860cbb 100644 --- a/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/lib/Target/Sparc/SparcRegisterInfo.cpp @@ -13,6 +13,7 @@ #include "SparcRegisterInfo.h" #include "Sparc.h" +#include "SparcMachineFunctionInfo.h" #include "SparcSubtarget.h" #include "llvm/ADT/BitVector.h" #include "llvm/ADT/STLExtras.h" @@ -89,12 +90,13 @@ SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, int64_t Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) + MI.getOperand(FIOperandNum + 1).getImm() + Subtarget.getStackPointerBias(); - + SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>(); + unsigned FramePtr = (FuncInfo->isLeafProc()) ? SP::O6 : SP::I6; // Replace frame index with a frame pointer reference. if (Offset >= -4096 && Offset <= 4095) { // If the offset is small enough to fit in the immediate field, directly // encode it. - MI.getOperand(FIOperandNum).ChangeToRegister(SP::I6, false); + MI.getOperand(FIOperandNum).ChangeToRegister(FramePtr, false); MI.getOperand(FIOperandNum + 1).ChangeToImmediate(Offset); } else { // Otherwise, emit a G1 = SETHI %hi(offset). FIXME: it would be better to @@ -103,7 +105,7 @@ SparcRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, BuildMI(*MI.getParent(), II, dl, TII.get(SP::SETHIi), SP::G1).addImm(OffHi); // Emit G1 = G1 + I6 BuildMI(*MI.getParent(), II, dl, TII.get(SP::ADDrr), SP::G1).addReg(SP::G1) - .addReg(SP::I6); + .addReg(FramePtr); // Insert: G1+%lo(offset) into the user. MI.getOperand(FIOperandNum).ChangeToRegister(SP::G1, false); MI.getOperand(FIOperandNum + 1).ChangeToImmediate(Offset & ((1 << 10)-1)); |