[PATCH] D44521: [InstSimplify] fp_binop X, NaN --> NaN

[Sanjay Patel via Phabricator via llvm-commits]

spatel created this revision.
spatel added reviewers: majnemer, arsenm, efriedma, lattner.
Herald added subscribers: tpr, nhaehnle, wdng, mcrosier.

Building on the recent clarification of FP in IR and identical to current undef operand folding, fold any FP binop with a NaN operand to NaN.

I don't know what to do with the AMDGPU tests that expected to use a NaN FP constant as an int value.


https://reviews.llvm.org/D44521

Files:
  lib/Analysis/InstructionSimplify.cpp
  test/CodeGen/AMDGPU/imm.ll
  test/CodeGen/AMDGPU/imm16.ll
  test/CodeGen/AMDGPU/immv216.ll
  test/CodeGen/AMDGPU/jump-address.ll
  test/Transforms/InstSimplify/fp-nan.ll

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