[clang] [lldb] Serialize `#pragma redefine_extname` into precompiled headers. (PR #186755)

[via cfe-commits]

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@@ -0,0 +1,14 @@
+// Test this without pch.
+// RUN: %clang_cc1 -triple=x86_64-unknown-linux -include %S/pragma-redefine-extname.h %s -verify -emit-llvm -o - | FileCheck %s
+
+// Test with pch.
+// RUN: %clang_cc1 -triple=x86_64-unknown-linux -x c-header -emit-pch -o %t %S/pragma-redefine-extname.h
+// RUN: %clang_cc1 -triple=x86_64-unknown-linux -include-pch %t %s -verify -emit-llvm -o - | FileCheck %s
+
+// CHECK-DAG: define dso_local void @redeffunc2_ext
+// CHECK-DAG: call void @redeffunc1_ext
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divVerent wrote:

I honestly don't know if any order is guaranteed. However, in this case I think I can safely assume indeed that the call must come after the function the call is contained in is declared. So, done.

https://github.com/llvm/llvm-project/pull/186755