[llvm] r374036 - [LoopRotate] Unconditionally get DomTree.

[Florian Hahn via llvm-commits]

Author: fhahn
Date: Tue Oct  8 04:54:42 2019
New Revision: 374036

URL: http://llvm.org/viewvc/llvm-project?rev=374036&view=rev
Log:
[LoopRotate] Unconditionally get DomTree.

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

Similar to a70c5261436322a53187d67b8bdc0445d0463a9a

Modified:
    llvm/trunk/lib/Transforms/Scalar/LoopRotation.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LoopRotation.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopRotation.cpp?rev=374036&r1=374035&r2=374036&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopRotation.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopRotation.cpp Tue Oct  8 04:54:42 2019
@@ -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);
   }