[llvm] [X86] Adding lowerings for vector ISD::LRINT and ISD::LLRINT (PR #90065)

[Craig Topper via llvm-commits]

topperc wrote:

> > gcc requires `-O1 -fno-math-errno -m32 -mfpmath=sse -fno-trapping-math`
> 
> 
> 
> `-fno-trapping-math` is not required. I think it's on by default.

-fno-trapping-math is not default on gcc. I was trying to find the subset of -ffast-math that gcc requires. it appears to be fno-math-errno and fno-trapping-math.

https://github.com/llvm/llvm-project/pull/90065