[PATCH] D53157: Teach the IRBuilder about constrained fadd and friends

[Cameron McInally via Phabricator via cfe-commits]

cameron.mcinally added a comment.

In D53157#1316860 <https://reviews.llvm.org/D53157#1316860>, @uweigand wrote:

> In my reading of the standard text, there is no special provision for library code.  This means that in general, calling any library function while running with nondefault trap settings is undefined behavior, unless the library was itself compiled with FENV_ACCESS ON.  There does not even appear to be any requirement for the C standard library functions to have been compiled with FENV_ACCESS ON, as far as I can see ...


I'll take this conversation to llvm-dev in the near future. I don't want to detract from Kevin's work.

Apologies for highjacking this Diff, Kevin.


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https://reviews.llvm.org/D53157