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author | Chad Rosier <mcrosier@apple.com> | 2013-01-31 20:02:54 +0000 |
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committer | Chad Rosier <mcrosier@apple.com> | 2013-01-31 20:02:54 +0000 |
commit | 108fb3202af6f500073cdbb7be32c25d7a273a2e (patch) | |
tree | 6703559490a0aa0b23f9c425fe177d19751565ba /lib/Target/PowerPC/PPCRegisterInfo.cpp | |
parent | cce07c9b3162acc756535e813e6ae818ad61564b (diff) | |
download | llvm-108fb3202af6f500073cdbb7be32c25d7a273a2e.tar.gz llvm-108fb3202af6f500073cdbb7be32c25d7a273a2e.tar.bz2 llvm-108fb3202af6f500073cdbb7be32c25d7a273a2e.tar.xz |
[PEI] Pass the frame index operand number to the eliminateFrameIndex function.
Each target implementation was needlessly recomputing the index.
Part of rdar://13076458
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174083 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCRegisterInfo.cpp')
-rw-r--r-- | lib/Target/PowerPC/PPCRegisterInfo.cpp | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp index 378c147331..eca7f12995 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -510,7 +510,8 @@ PPCRegisterInfo::hasReservedSpillSlot(const MachineFunction &MF, void PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, - int SPAdj, RegScavenger *RS) const { + int SPAdj, unsigned FIOperandNum, + RegScavenger *RS) const { assert(SPAdj == 0 && "Unexpected"); // Get the instruction. @@ -524,20 +525,13 @@ PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering(); DebugLoc dl = MI.getDebugLoc(); - // Find out which operand is the frame index. - unsigned FIOperandNo = 0; - while (!MI.getOperand(FIOperandNo).isFI()) { - ++FIOperandNo; - assert(FIOperandNo != MI.getNumOperands() && - "Instr doesn't have FrameIndex operand!"); - } // Take into account whether it's an add or mem instruction - unsigned OffsetOperandNo = (FIOperandNo == 2) ? 1 : 2; + unsigned OffsetOperandNo = (FIOperandNum == 2) ? 1 : 2; if (MI.isInlineAsm()) - OffsetOperandNo = FIOperandNo-1; + OffsetOperandNo = FIOperandNum-1; // Get the frame index. - int FrameIndex = MI.getOperand(FIOperandNo).getIndex(); + int FrameIndex = MI.getOperand(FIOperandNum).getIndex(); // Get the frame pointer save index. Users of this index are primarily // DYNALLOC instructions. @@ -567,7 +561,7 @@ PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, // Replace the FrameIndex with base register with GPR1 (SP) or GPR31 (FP). bool is64Bit = Subtarget.isPPC64(); - MI.getOperand(FIOperandNo).ChangeToRegister(TFI->hasFP(MF) ? + MI.getOperand(FIOperandNum).ChangeToRegister(TFI->hasFP(MF) ? (is64Bit ? PPC::X31 : PPC::R31) : (is64Bit ? PPC::X1 : PPC::R1), false); @@ -649,7 +643,7 @@ PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, OperandBase = OffsetOperandNo; } - unsigned StackReg = MI.getOperand(FIOperandNo).getReg(); + unsigned StackReg = MI.getOperand(FIOperandNum).getReg(); MI.getOperand(OperandBase).ChangeToRegister(StackReg, false); MI.getOperand(OperandBase + 1).ChangeToRegister(SReg, false, false, true); } |