[clang] [llvm] [Clang][AIX] Add -mloadtime-comment-vars flag to preserve identifying variables (PR #187986)

[Hubert Tong via cfe-commits]

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@@ -9,7 +9,9 @@
 target triple = "powerpc-ibm-aix"
 
 @__loadtime_comment_str_f20696a95b638f0b = weak_odr hidden unnamed_addr constant [24 x i8] c"@(#) Copyright TU1 v1.0\00", section "__loadtime_comment", align 1, !loadtime_comment !0
- at llvm.compiler.used = appending global [1 x ptr] [ptr @__loadtime_comment_str_f20696a95b638f0b], section "llvm.metadata"
+ at .loadtime_comment_vars.str = private unnamed_addr constant [22 x i8] c"loadtime_comment vars\00", align 1
+ at loadtime_comment_vars_gv = internal global ptr @.loadtime_comment_vars.str, align 8, !loadtime_comment !0
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hubert-reinterpretcast wrote:

Nit: The test is for 32-bit but it looks like the IR is for 64-bit?

https://github.com/llvm/llvm-project/pull/187986