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[LoopRotate] Unconditionally get DomTree.

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LoopRotate is a loop pass and the DomTree should always be available.

Similar to a70c5261436322a53187d67b8bdc0445d0463a9a

llvm-svn: 374036
This commit is contained in:
Florian Hahn 2019-10-08 11:54:42 +00:00
parent 13160fb6a6
commit ec3fa11964
1 changed files with 2 additions and 3 deletions
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5
lib/Transforms/Scalar/LoopRotation.cpp
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@ -94,8 +94,7 @@ public:
auto *LI = &getAnalysis<LoopInfoWrapperPass>().getLoopInfo();
const auto *TTI = &getAnalysis<TargetTransformInfoWrapperPass>().getTTI(F);
auto *AC = &getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
auto *DTWP = getAnalysisIfAvailable<DominatorTreeWrapperPass>();
auto *DT = DTWP ? &DTWP->getDomTree() : nullptr;
auto &DT = getAnalysis<DominatorTreeWrapperPass>().getDomTree();
auto &SE = getAnalysis<ScalarEvolutionWrapperPass>().getSE();
const SimplifyQuery SQ = getBestSimplifyQuery(*this, F);
Optional<MemorySSAUpdater> MSSAU;
@ -103,7 +102,7 @@ public:
MemorySSA *MSSA = &getAnalysis<MemorySSAWrapperPass>().getMSSA();
MSSAU = MemorySSAUpdater(MSSA);
}
return LoopRotation(L, LI, TTI, AC, DT, &SE,
return LoopRotation(L, LI, TTI, AC, &DT, &SE,
MSSAU.hasValue() ? MSSAU.getPointer() : nullptr, SQ,
false, MaxHeaderSize, false);
}