[PATCH] D22105: [X86][SSE] Reimplement SSE fp2si conversion intrinsics instead of using generic IR

[Eli Friedman via cfe-commits]

eli.friedman added a comment.

The x86-specific operation is affected by the rounding mode... but so is a C cast.  This is specified by Annex F in the C standard.

Of course, you're going to end up with undefined behavior if you actually modify the rounding mode because LLVM and clang don't support FENV_ACCESS at the moment.


Repository:
  rL LLVM

https://reviews.llvm.org/D22105