[llvm] [SPIRV] Addition of @llvm.lround.* and @llvm.llround.* intrinsic (PR #129240)

[Alexey Bader via llvm-commits]

================
@@ -0,0 +1,106 @@
+; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
----------------
bader wrote:

I'm okay with cleaning things up in the future.
I interpreted `Ideally` in your previous comment as the current state of things doesn't require any improvements.

https://github.com/llvm/llvm-project/pull/129240