[PATCH] D95690: [LoopVectorize] improve IR fast-math-flags propagation in reductions

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added inline comments.


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Comment at: llvm/lib/Analysis/IVDescriptors.cpp:312
+          //       standardize on fmin/fmax via intrinsics, this can be removed.
+          assert(isa<FCmpInst>(Sel->getCondition()) && "Expected fcmp min/max");
+          CurFMF |= cast<FCmpInst>(Sel->getCondition())->getFastMathFlags();
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I notice that the assert may fail. We will work on a reproduce.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D95690/new/

https://reviews.llvm.org/D95690