[llvm] [Verifier][AMDGPU] No store to const addrspace (PR #109181)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,9 @@
+; RUN: not opt -mtriple=amdgcn --passes=lint --lint-abort-on-error %s -o - |& FileCheck %s
+
+define amdgpu_kernel void @store_const(ptr addrspace(4) %out, i32 %a, i32 %b) addrspace(4) {
+; CHECK: Undefined behavior: Write to const memory
+; CHECK-NEXT: store i32 %r, ptr addrspace(4) %out
+  %r = add i32 %a, %b
+  store i32 %r, ptr addrspace(4) %out
+  ret void
+}
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arsenm wrote:

test atomicrmw, cmpxchg, and a memset, memcpy? Also at least the addrspace(6) case 

https://github.com/llvm/llvm-project/pull/109181