[clang] [CodeGen] Fix cleanup attribute for C89 for-loop init variables (PR #156643)

[Jongmyeong Choi via cfe-commits]

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@@ -5,3 +5,26 @@ void g(void) {
   __attribute__((cleanup(f))) void *g;
 }
 
+// Test for cleanup in for-loop initialization (PR #154624)
+// RUN: %clang_cc1 -std=c89 -emit-llvm %s -o - | FileCheck %s --check-prefix=C89
+// RUN: %clang_cc1 -std=c99 -emit-llvm %s -o - | FileCheck %s --check-prefix=C99
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jongmyeong-choi wrote:

When you mentioned "delete the redundant RUN line" - were you referring to this line? `// RUN: %clang_cc1 -emit-llvm %s -o %t`

And update_cc_test_checks seems to check the entire IR. I don't have much experience, so I'm wondering if this approach is better. Personally, I feel that localized tests are more intuitive.

https://github.com/llvm/llvm-project/pull/156643