[clang] [llvm] [PowerPC][AIX] Support #pragma comment copyright for AIX (PR #178184)

[Wael Yehia via cfe-commits]

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@@ -2499,6 +2510,11 @@ PassBuilder::buildO0DefaultPipeline(OptimizationLevel Level,
   if (EnableInstrumentor)
     MPM.addPass(InstrumentorPass(FS));
 
+  // Lower !comment_string.loadtime metadata to a concrete TU-local string
+  // global. Running at the end of the O0 pipeline ensures all functions
+  // including AlwaysInliner-generated ones are captured.
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w2yehia wrote:

```suggestion
```
No need to say anything or at most say `Lower !comment_string.loadtime metadata.`
Also AlwaysInliner do not generate new functions.

https://github.com/llvm/llvm-project/pull/178184