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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150094 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2012-02-08 21:22:43 +00:00
parent ffea03f216
commit 1df91b0e54
8 changed files with 80 additions and 80 deletions

View File

@@ -90,14 +90,14 @@ namespace {
MachineFunctionPass(ID), ColorWithRegs(RegColor), NextColor(-1) {
initializeStackSlotColoringPass(*PassRegistry::getPassRegistry());
}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
AU.addRequired<SlotIndexes>();
AU.addPreserved<SlotIndexes>();
AU.addRequired<LiveStacks>();
AU.addRequired<VirtRegMap>();
AU.addPreserved<VirtRegMap>();
AU.addPreserved<VirtRegMap>();
AU.addRequired<MachineLoopInfo>();
AU.addPreserved<MachineLoopInfo>();
AU.addPreservedID(MachineDominatorsID);
@@ -372,33 +372,33 @@ bool StackSlotColoring::RemoveDeadStores(MachineBasicBlock* MBB) {
I != E; ++I) {
if (DCELimit != -1 && (int)NumDead >= DCELimit)
break;
MachineBasicBlock::iterator NextMI = llvm::next(I);
if (NextMI == MBB->end()) continue;
int FirstSS, SecondSS;
unsigned LoadReg = 0;
unsigned StoreReg = 0;
if (!(LoadReg = TII->isLoadFromStackSlot(I, FirstSS))) continue;
if (!(StoreReg = TII->isStoreToStackSlot(NextMI, SecondSS))) continue;
if (FirstSS != SecondSS || LoadReg != StoreReg || FirstSS == -1) continue;
++NumDead;
changed = true;
if (NextMI->findRegisterUseOperandIdx(LoadReg, true, 0) != -1) {
++NumDead;
toErase.push_back(I);
}
toErase.push_back(NextMI);
++I;
}
for (SmallVector<MachineInstr*, 4>::iterator I = toErase.begin(),
E = toErase.end(); I != E; ++I)
(*I)->eraseFromParent();
return changed;
}
@@ -406,7 +406,7 @@ bool StackSlotColoring::RemoveDeadStores(MachineBasicBlock* MBB) {
bool StackSlotColoring::runOnMachineFunction(MachineFunction &MF) {
DEBUG({
dbgs() << "********** Stack Slot Coloring **********\n"
<< "********** Function: "
<< "********** Function: "
<< MF.getFunction()->getName() << '\n';
});