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Revert r219175 - [InstCombine] re-commit r218721 icmp-select-icmp optimization

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This seems to have caused PR21199.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219264 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hans Wennborg
2014-10-08 01:05:57 +00:00
parent 6e36592a73
commit 8315bd8ab0
4 changed files with 9 additions and 152 deletions
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8
lib/Transforms/InstCombine/InstructionCombining.cpp
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@ -90,7 +90,6 @@ INITIALIZE_PASS_BEGIN(InstCombiner, "instcombine",
"Combine redundant instructions", false, false)
INITIALIZE_PASS_DEPENDENCY(AssumptionTracker)
INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfo)
INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
INITIALIZE_PASS_END(InstCombiner, "instcombine",
"Combine redundant instructions", false, false)
@ -98,8 +97,6 @@ void InstCombiner::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
AU.addRequired<AssumptionTracker>();
AU.addRequired<TargetLibraryInfo>();
AU.addRequired<DominatorTreeWrapperPass>();
AU.addPreserved<DominatorTreeWrapperPass>();
}
@ -2936,9 +2933,12 @@ bool InstCombiner::runOnFunction(Function &F) {
AT = &getAnalysis<AssumptionTracker>();
DataLayoutPass *DLP = getAnalysisIfAvailable<DataLayoutPass>();
DL = DLP ? &DLP->getDataLayout() : nullptr;
DT = &getAnalysis<DominatorTreeWrapperPass>().getDomTree();
TLI = &getAnalysis<TargetLibraryInfo>();
DominatorTreeWrapperPass *DTWP =
getAnalysisIfAvailable<DominatorTreeWrapperPass>();
DT = DTWP ? &DTWP->getDomTree() : nullptr;
// Minimizing size?
MinimizeSize = F.getAttributes().hasAttribute(AttributeSet::FunctionIndex,
Attribute::MinSize);