[llvm] Add SPIRV lowering for intrinsics @llvm.fptosi.sat.* and @llvm.fptoui.sat.* (PR #125805)

[Vishakh Prakash via llvm-commits]

Vishakh2012 wrote:

> I'm a little concerned that this isn't using existing GlobalISel legalization infrastructure; LegalizerHelper::widenScalar already has code to handle widening G_FPTOSI_SAT.

The issue I am facing is that even before the gMIR reaches the legalize it is getting widened, probably something that is being done in the IRTranslator, not sure though, any idea?

https://github.com/llvm/llvm-project/pull/125805