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IndVarSimplify - silence static analyzer dyn_cast<> null dereference warning. NFCI.

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The static analyzer is warning about a potential null dereference, but we should be able to use cast<> directly and if not assert will fire for us.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375426 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Simon Pilgrim 2019-10-21 17:15:05 +00:00
parent 4548d296c1
commit 72157fef87
1 changed files with 2 additions and 2 deletions
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4
lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -2268,8 +2268,8 @@ static PHINode *FindLoopCounter(Loop *L, BasicBlock *ExitingBB,
if (BECount->getType()->isPointerTy() && !Phi->getType()->isPointerTy())
continue;
const auto *AR = dyn_cast<SCEVAddRecExpr>(SE->getSCEV(Phi));
const auto *AR = cast<SCEVAddRecExpr>(SE->getSCEV(Phi));
// AR may be a pointer type, while BECount is an integer type.
// AR may be wider than BECount. With eq/ne tests overflow is immaterial.
// AR may not be a narrower type, or we may never exit.