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[PM] Move the LoopInfo analysis pointer into the InstCombiner class

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along with the other analyses.

The most obvious reason why is because eventually I need to separate out
the pass layer from the rest of the instcombiner. However, it is also
probably a compile time win as every query through the pass manager
layer is pretty slow these days.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226550 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2015-01-20 08:35:24 +00:00
parent 7e9f120130
commit 06df574f20
2 changed files with 9 additions and 4 deletions
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6
lib/Transforms/InstCombine/InstructionCombining.cpp
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@@ -799,9 +799,7 @@ Instruction *InstCombiner::FoldOpIntoPhi(Instruction &I) {
// If the incoming non-constant value is in I's block, we will remove one
// instruction, but insert another equivalent one, leading to infinite
// instcombine.
auto *LIWP = getAnalysisIfAvailable<LoopInfoWrapperPass>();
if (isPotentiallyReachable(I.getParent(), NonConstBB, DT,
LIWP ? &LIWP->getLoopInfo() : nullptr))
if (isPotentiallyReachable(I.getParent(), NonConstBB, DT, LI))
return nullptr;
}
@@ -2975,6 +2973,8 @@ bool InstCombiner::runOnFunction(Function &F) {
DataLayoutPass *DLP = getAnalysisIfAvailable<DataLayoutPass>();
DL = DLP ? &DLP->getDataLayout() : nullptr;
DT = &getAnalysis<DominatorTreeWrapperPass>().getDomTree();
auto *LIWP = getAnalysisIfAvailable<LoopInfoWrapperPass>();
LI = LIWP ? &LIWP->getLoopInfo() : nullptr;
TLI = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
// Minimizing size?