[llvm] [AMDGPU] Promote nestedGEP allocas to vectors (PR #141199)

[Jay Foad via llvm-commits]

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@@ -70,7 +70,7 @@ entry:
   store i32 %extra, ptr addrspace(5) %v
   store <2 x i32> %in, ptr addrspace(5) %v1
   %e = getelementptr [2 x i32], ptr addrspace(5) %v1, i32 0, i32 %idx
-  %x = load i32, ptr addrspace(5) %e
+  %x = load volatile i32, ptr addrspace(5) %e
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jayfoad wrote:

What is this change for?

https://github.com/llvm/llvm-project/pull/141199