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Ignore dbg_value's.

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llvm-svn: 99321
This commit is contained in:
Evan Cheng 2010-03-23 20:36:12 +00:00
parent e6099e3382
commit 67c472ec47
1 changed files with 7 additions and 5 deletions
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12
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -188,8 +188,9 @@ bool TwoAddressInstructionPass::Sink3AddrInstruction(MachineBasicBlock *MBB,
// Find the instruction that kills SavedReg.
MachineInstr *KillMI = NULL;
for (MachineRegisterInfo::use_iterator UI = MRI->use_begin(SavedReg),
UE = MRI->use_end(); UI != UE; ++UI) {
for (MachineRegisterInfo::use_nodbg_iterator
UI = MRI->use_nodbg_begin(SavedReg),
UE = MRI->use_nodbg_end(); UI != UE; ++UI) {
MachineOperand &UseMO = UI.getOperand();
if (!UseMO.isKill())
continue;
@ -280,8 +281,8 @@ TwoAddressInstructionPass::isProfitableToReMat(unsigned Reg,
MachineInstr *MI, MachineInstr *DefMI,
MachineBasicBlock *MBB, unsigned Loc) {
bool OtherUse = false;
for (MachineRegisterInfo::use_iterator UI = MRI->use_begin(Reg),
UE = MRI->use_end(); UI != UE; ++UI) {
for (MachineRegisterInfo::use_nodbg_iterator UI = MRI->use_nodbg_begin(Reg),
UE = MRI->use_nodbg_end(); UI != UE; ++UI) {
MachineOperand &UseMO = UI.getOperand();
MachineInstr *UseMI = UseMO.getParent();
MachineBasicBlock *UseMBB = UseMI->getParent();
@ -927,6 +928,7 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
mi = nmi;
continue;
}
const TargetInstrDesc &TID = mi->getDesc();
bool FirstTied = true;
@ -1101,7 +1103,7 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
// Some remat'ed instructions are dead.
int VReg = ReMatRegs.find_first();
while (VReg != -1) {
if (MRI->use_empty(VReg)) {
if (MRI->use_nodbg_empty(VReg)) {
MachineInstr *DefMI = MRI->getVRegDef(VReg);
DefMI->eraseFromParent();
}