[llvm] [AMDGPU] Implement hasAndNot for scalar bitwise AND-NOT operations. (PR #112647)

[Matt Arsenault via llvm-commits]

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@@ -25,6 +25,28 @@ entry:
   ret void
 }
 
+; GCN-LABEL: {{^}}scalar_andn2_i32_one_sgpr
+; GCN: s_andn2_b32
+define amdgpu_kernel void @scalar_andn2_i32_one_sgpr(
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arsenm wrote:

better to use a shader calling convention and use the return value. the style of tests with the output pointer and a kernel is older and predates function support. kernels have a lot of extra noise in the output 

https://github.com/llvm/llvm-project/pull/112647