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authorPhilip Reames <listmail@philipreames.com>2020-11-24 18:45:37 -0800
committerPhilip Reames <listmail@philipreames.com>2020-11-24 18:47:49 -0800
commit10ddb927c1c3ee6af0436c23f93fe1da6de7b99a (patch)
treec30bb706f535956a3305eab545741ed4cb4d961a /llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
parent3d1149c6fe48cdab768b587e5531c31b6f42ee12 (diff)
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[SCEV] Use isa<> pattern for testing for CouldNotCompute [NFC]
Some older code - and code copied from older code - still directly tested against the singelton result of SE::getCouldNotCompute. Using the isa<SCEVCouldNotCompute> form is both shorter, and more readable.
Diffstat (limited to 'llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp')
-rw-r--r--llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp b/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
index 877495b..c7e37fe 100644
--- a/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
+++ b/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
@@ -2468,7 +2468,7 @@ Value *SCEVExpander::generateOverflowCheck(const SCEVAddRecExpr *AR,
const SCEV *ExitCount =
SE.getPredicatedBackedgeTakenCount(AR->getLoop(), Pred);
- assert(ExitCount != SE.getCouldNotCompute() && "Invalid loop count");
+ assert(!isa<SCEVCouldNotCompute>(ExitCount) && "Invalid loop count");
const SCEV *Step = AR->getStepRecurrence(SE);
const SCEV *Start = AR->getStart();