[llvm] [NFC] [DirectX] Update DirectX codegen test `CBufferAccess/gep-ce-two-uses.ll` due to changes to ReplaceConstant (PR #169848)

[Justin Bogner via llvm-commits]

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@@ -21,6 +21,22 @@ entry:
   %a1 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 16), align 4
   store float %a1, ptr %dst, align 32
 
+  %a2 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 16), align 4
+  store float %a2, ptr %dst, align 32
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bogner wrote:

Should probably add checks for the two stores to show that they're reusing the same GEP

https://github.com/llvm/llvm-project/pull/169848