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Let MRegisterInfo now owns RegScavenger.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34691 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-02-27 21:10:33 +00:00
parent bb6fb3357d
commit 3f6fd87473
1 changed files with 3 additions and 3 deletions
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6
lib/CodeGen/PrologEpilogInserter.cpp
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@ -442,9 +442,10 @@ void PEI::replaceFrameIndices(MachineFunction &Fn) {
const TargetMachine &TM = Fn.getTarget(); const TargetMachine &TM = Fn.getTarget();
assert(TM.getRegisterInfo() && "TM::getRegisterInfo() must be implemented!"); assert(TM.getRegisterInfo() && "TM::getRegisterInfo() must be implemented!");
const MRegisterInfo &MRI = *TM.getRegisterInfo(); const MRegisterInfo &MRI = *TM.getRegisterInfo();
RegScavenger *RS = MRI.getRegScavenger();
for (MachineFunction::iterator BB = Fn.begin(), E = Fn.end(); BB != E; ++BB) { for (MachineFunction::iterator BB = Fn.begin(), E = Fn.end(); BB != E; ++BB) {
RegScavenger RS(BB); if (RS) RS->reset(BB);
for (MachineBasicBlock::iterator I = BB->begin(); I != BB->end(); ++I) { for (MachineBasicBlock::iterator I = BB->begin(); I != BB->end(); ++I) {
for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
if (I->getOperand(i).isFrameIndex()) { if (I->getOperand(i).isFrameIndex()) {
@ -454,8 +455,7 @@ void PEI::replaceFrameIndices(MachineFunction &Fn) {
break; break;
} }
// Update register states. // Update register states.
if (MRI.requiresRegisterScavenging()) if (RS) RS->forward(I);
RS.forward(I);
} }
} }
} }