[llvm] [AMDGPU] Set hasSideEffects=0 for SALU psuedos (PR #134487)

[Jay Foad via llvm-commits]

jayfoad wrote:

> mansharma612 force-pushed the salusideeffects branch from 926a934 to baddce9 3 minutes ago

To fix things in your PR it is almost always better to push an extra commit, instead of modifying your commit and force-pushing it. Force-pushing makes it harder for reviewers to see what you have changed.

https://github.com/llvm/llvm-project/pull/134487