[llvm] [LLVM] Maintain element type of @llvm.compiler.used/@llvm.used if it already exists (PR #162660)

[Matt Arsenault via llvm-commits]

Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>,
Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/162660 at github.com>


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@@ -69,6 +69,23 @@ TEST(ModuleUtils, AppendToUsedList2) {
   EXPECT_EQ(1, getListSize(*M, "llvm.used"));
 }
 
+TEST(ModuleUtils, AppendToUsedList3) {
+  LLVMContext C;
+
+  std::unique_ptr<Module> M = parseIR(C, R"(
+          @x = addrspace(1) global [2 x i32] zeroinitializer, align 4
+          @y = addrspace(2) global [2 x i32] zeroinitializer, align 4
+          @llvm.compiler.used = appending global [1 x ptr addrspace (3)] [ptr addrspace(3) addrspacecast (ptr addrspace (1) @x to ptr addrspace(3))]
----------------
arsenm wrote:

```suggestion
          @llvm.compiler.used = appending global [1 x ptr addrspace(3)] [ptr addrspace(3) addrspacecast (ptr addrspace(1) @x to ptr addrspace(3))]
```

https://github.com/llvm/llvm-project/pull/162660