[llvm-commits] [llvm] r121172 - /llvm/trunk/lib/Target/ARM/ARMFrameInfo.cpp
Evan Cheng
evan.cheng at apple.com
Tue Dec 7 11:59:34 PST 2010
Author: evancheng
Date: Tue Dec 7 13:59:34 2010
New Revision: 121172
URL: http://llvm.org/viewvc/llvm-project?rev=121172&view=rev
Log:
Code clean up; no functionality change.
Modified:
llvm/trunk/lib/Target/ARM/ARMFrameInfo.cpp
Modified: llvm/trunk/lib/Target/ARM/ARMFrameInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMFrameInfo.cpp?rev=121172&r1=121171&r2=121172&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMFrameInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMFrameInfo.cpp Tue Dec 7 13:59:34 2010
@@ -508,11 +508,7 @@
DebugLoc DL;
if (MI != MBB.end()) DL = MI->getDebugLoc();
- MachineInstrBuilder MIB = BuildMI(MF, DL, TII.get(Opc));
- MIB.addReg(ARM::SP, getDefRegState(true));
- MIB.addReg(ARM::SP);
- AddDefaultPred(MIB);
- bool NumRegs = false;
+ SmallVector<std::pair<unsigned,bool>, 4> Regs;
for (unsigned i = CSI.size(); i != 0; --i) {
unsigned Reg = CSI[i-1].getReg();
if (!(Func)(Reg, STI.isTargetDarwin())) continue;
@@ -530,15 +526,16 @@
if (isKill)
MBB.addLiveIn(Reg);
- NumRegs = true;
- MIB.addReg(Reg, getKillRegState(isKill));
+ Regs.push_back(std::make_pair(Reg, isKill));
}
// It's illegal to emit push instruction without operands.
- if (NumRegs)
- MBB.insert(MI, &*MIB);
- else
- MF.DeleteMachineInstr(MIB);
+ if (!Regs.empty()) {
+ MachineInstrBuilder MIB = AddDefaultPred(BuildMI(MBB, MI, DL, TII.get(Opc),
+ ARM::SP).addReg(ARM::SP));
+ for (unsigned i = 0, e = Regs.size(); i < e; ++i)
+ MIB.addReg(Regs[i].first, getKillRegState(Regs[i].second));
+ }
}
bool ARMFrameInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
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