[llvm] [AMDGPU] (x or y) xor -1 -> x nor y (PR #130264)

[Jay Foad via llvm-commits]

================
@@ -80,4 +80,4 @@ entry:
   %or = or i64 %a, %b
   %r = xor i64 %or, -1
   ret i64 %r
-}
+}
----------------
jayfoad wrote:

Remove this change

https://github.com/llvm/llvm-project/pull/130264