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

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,68 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
+; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx1200 -mattr="+wavefrontsize32,-wavefrontsize64" -o - < %s | FileCheck %s
+; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx1100 -mattr="+wavefrontsize32,-wavefrontsize64" -o - < %s | FileCheck %s
+
+define amdgpu_ps void @divergent_i1_phi_if_else(ptr addrspace(1) %out, i32  %tid, i32  %a, i32  %b, i32  %c, i32  %d) {
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arsenm wrote:

You shouldn't need control flow in this test. Should cover all the SGPR and VGPR input cases, and need negative tests for the multi-use case 

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