nastafev added a comment.

Hello. It seems you were well aware that you are changing the semantics of FP 
operation here by ignoring the signaling/quiet portion of the immediate. But 
what shall the user do now? There was no way to force quiet FP comparison 
behavior in C language, so intrinsics and reliance on quiet compare (and SAE 
bit in AVX512) were natural way of forcing it. And now you are taking them out. 
Is there a switch that could prevent this optimization? I think it could be 
more tolerable if you only did this under fast-math.


Repository:
  rC Clang

https://reviews.llvm.org/D45616



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