[llvm] [AMDGPU] Select (xor i1 (divergent trunc:i32 x), -1) -> cmp_neq x, 1 (PR #133698)

[Ana Mihajlovic via llvm-commits]

mihajlovicana wrote:

> LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux` running on `sanitizer-buildbot8` while building `llvm` at step 2 "annotate".
> 
> Full details are available at: https://lab.llvm.org/buildbot/#/builders/51/builds/14224
> 
> Here is the relevant piece of the build log for the reference

patch is for amdgpu

https://github.com/llvm/llvm-project/pull/133698