[PATCH] D116952: [ConstantFolding] Respect denormal handling mode attributes when folding instructions

[David Candler via Phabricator via llvm-commits]

dcandler updated this revision to Diff 426602.
dcandler added a comment.

I've moved the tests to instsimplify, and expanded them out to cover more cases and additional instructions. While there may be some overlap, this structures it a bit better and ensures cases don't get conflated: depending on the instruction some zero results can be obtained from either the input getting zeroed or the output getting zeroed, so it's better to test both separately.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116952/new/

https://reviews.llvm.org/D116952

Files:
  llvm/include/llvm/Analysis/ConstantFolding.h
  llvm/lib/Analysis/ConstantFolding.cpp
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/test/Transforms/InstCombine/AArch64/constant-fold-fp-denormal.ll
  llvm/test/Transforms/InstCombine/ARM/constant-fold-fp-denormal.ll
  llvm/test/Transforms/InstSimplify/AArch64/constant-fold-fp-denormal-fadd.ll
  llvm/test/Transforms/InstSimplify/AArch64/constant-fold-fp-denormal-fdiv.ll
  llvm/test/Transforms/InstSimplify/AArch64/constant-fold-fp-denormal-fmul.ll
  llvm/test/Transforms/InstSimplify/AArch64/constant-fold-fp-denormal-fneg.ll
  llvm/test/Transforms/InstSimplify/AArch64/constant-fold-fp-denormal-frem.ll
  llvm/test/Transforms/InstSimplify/AArch64/constant-fold-fp-denormal-fsub.ll
  llvm/test/Transforms/InstSimplify/ARM/constant-fold-fp-denormal-fadd.ll
  llvm/test/Transforms/InstSimplify/ARM/constant-fold-fp-denormal-fdiv.ll
  llvm/test/Transforms/InstSimplify/ARM/constant-fold-fp-denormal-fmul.ll
  llvm/test/Transforms/InstSimplify/ARM/constant-fold-fp-denormal-fneg.ll
  llvm/test/Transforms/InstSimplify/ARM/constant-fold-fp-denormal-frem.ll
  llvm/test/Transforms/InstSimplify/ARM/constant-fold-fp-denormal-fsub.ll

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