[clang-tools-extra] [clang] [compiler-rt] [PGO] Exposing PGO's Counter Reset and File Dumping APIs (PR #76471)

[Snehasish Kumar via cfe-commits]

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@@ -1364,12 +1364,22 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
   TI.getTargetDefines(LangOpts, Builder);
 }
 
+static void InitializePGOProfileMacros(const CodeGenOptions &CodeGenOpts,
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snehasish wrote:

There are IR PGO users (e.g. Rust) which don't use the clang frontend. Do we need this macro based checks? 

I would prefer to just limit this patch to exposing the necessary interfaces. End-users can manage their own macros if they want to exclude the profile APIs from the source. 

https://github.com/llvm/llvm-project/pull/76471