[PATCH] D121338: [BOLT][NFC] Fix data race in shortenInstructions

[Amir Ayupov via Phabricator via llvm-commits]

Amir created this revision.
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Address ThreadSanitizer warning


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121338

Files:
  bolt/lib/Passes/BinaryPasses.cpp


Index: bolt/lib/Passes/BinaryPasses.cpp
===================================================================
--- bolt/lib/Passes/BinaryPasses.cpp
+++ bolt/lib/Passes/BinaryPasses.cpp
@@ -1015,6 +1015,7 @@
         continue;
 
       if (opts::Verbosity > 2) {
+        BC.scopeLock();
         outs() << "BOLT-INFO: shortening:\nBOLT-INFO:    ";
         BC.printInstruction(outs(), OriginalInst, 0, &Function);
         outs() << "BOLT-INFO: to:";


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