[llvm] [SPIR-V] Add saturation and float rounding mode decorations, a subset of arithmetic constrained floating-point intrinsics, and SPV_INTEL_float_controls2 extension (PR #119862)

[Michal Paszkowski via llvm-commits]

https://github.com/michalpaszkowski approved this pull request.


https://github.com/llvm/llvm-project/pull/119862