[llvm] [BOLT] Hash-based function matching (PR #96572)

[Maksim Panchenko via llvm-commits]

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@@ -2982,6 +2981,9 @@ void RewriteInstance::selectFunctionsToProcess() {
     if (mustSkip(Function))
       return false;
 
+    if (opts::MatchProfileWithFunctionHash)
+      return true;
+
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maksfb wrote:

Can we instead modify `YAMLProfileReader::mayHaveProfileData()` to return `true` when `opts::MatchProfileWithFunctionHash` is set?

https://github.com/llvm/llvm-project/pull/96572