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Minor code cleanups.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86926 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-11-12 01:51:28 +00:00
parent 87e9f59c7a
commit 8520149db1
1 changed files with 9 additions and 9 deletions
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18
lib/CodeGen/BranchFolding.cpp
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@ -380,7 +380,7 @@ MachineBasicBlock *BranchFolder::SplitMBBAt(MachineBasicBlock &CurMBB,
RS->forward(prior(CurMBB.end()));
BitVector RegsLiveAtExit(TRI->getNumRegs());
RS->getRegsUsed(RegsLiveAtExit, false);
for (unsigned int i=0, e=TRI->getNumRegs(); i!=e; i++)
for (unsigned int i = 0, e = TRI->getNumRegs(); i != e; i++)
if (RegsLiveAtExit[i])
NewMBB->addLiveIn(i);
}
@ -546,7 +546,7 @@ unsigned BranchFolder::ComputeSameTails(unsigned CurHash,
MPIterator HighestMPIter = prior(MergePotentials.end());
for (MPIterator CurMPIter = prior(MergePotentials.end()),
B = MergePotentials.begin();
CurMPIter!=B && CurMPIter->getHash() == CurHash;
CurMPIter != B && CurMPIter->getHash() == CurHash;
--CurMPIter) {
for (MPIterator I = prior(CurMPIter); I->getHash() == CurHash ; --I) {
unsigned CommonTailLen;
@ -596,9 +596,9 @@ void BranchFolder::RemoveBlocksWithHash(unsigned CurHash,
/// only of the common tail. Create a block that does by splitting one.
unsigned BranchFolder::CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,
unsigned maxCommonTailLength) {
unsigned i, commonTailIndex;
unsigned commonTailIndex = 0;
unsigned TimeEstimate = ~0U;
for (i=0, commonTailIndex=0; i<SameTails.size(); i++) {
for (unsigned i = 0, e = SameTails.size(); i != e; ++i) {
// Use PredBB if possible; that doesn't require a new branch.
if (SameTails[i].getBlock() == PredBB) {
commonTailIndex = i;
@ -856,19 +856,19 @@ bool BranchFolder::TailMergeBlocks(MachineFunction &MF) {
if (IBB->isLandingPad()) {
MachineFunction::iterator IP = PBB; IP++;
MachineBasicBlock* PredNextBB = NULL;
if (IP!=MF.end())
if (IP != MF.end())
PredNextBB = IP;
if (TBB == NULL) {
if (IBB!=PredNextBB) // fallthrough
if (IBB != PredNextBB) // fallthrough
continue;
} else if (FBB) {
if (TBB!=IBB && FBB!=IBB) // cbr then ubr
if (TBB != IBB && FBB != IBB) // cbr then ubr
continue;
} else if (Cond.empty()) {
if (TBB!=IBB) // ubr
if (TBB != IBB) // ubr
continue;
} else {
if (TBB!=IBB && IBB!=PredNextBB) // cbr
if (TBB != IBB && IBB != PredNextBB) // cbr
continue;
}
}