[PATCH] D121483: [FPEnv][InstSimplify] Teach CannotBeNegativeZero() about constrained intrinsics.

[Kevin P. Neal via Phabricator via llvm-commits]

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Currently some optimizations are disabled because llvm::CannotBeNegativeZero() does not know how to deal with the constrained intrinsics. This patch fixes that by extending the existing implementation.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121483

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Transforms/InstSimplify/strictfp-fsub.ll
  llvm/test/Transforms/InstSimplify/strictfp-sqrt-nonneg.ll

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