[llvm-branch-commits] [llvm] [BOLT] Match blocks with pseudo probes (PR #99891)

[Lei Wang via llvm-branch-commits]

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@@ -266,6 +325,123 @@ class StaleMatcher {
     }
     return BestBlock;
   }
+
+  /// A helper function for logging.
+  static bool LogErrIfExpr(bool Expr, std::string Message) {
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wlei-llvm wrote:

Nit: `std::string` can this be `StringRef`?

https://github.com/llvm/llvm-project/pull/99891