[llvm] [SimplifyCFG] Set branch weights when merging conditional store to address (PR #154841)

[Mircea Trofin via llvm-commits]

================
@@ -203,6 +203,8 @@ static cl::opt<unsigned> MaxJumpThreadingLiveBlocks(
     cl::desc("Limit number of blocks a define in a threaded block is allowed "
              "to be live in"));
 
+extern cl::opt<bool> ProfcheckDisableMetadataFixes;
----------------
mtrofin wrote:

wanted to keep the churn to a minimum, the flag is basically an eyesore but it'll serve its purpose. I'm not opposed to moving it to a header. Just not sure if it's worth it.

https://github.com/llvm/llvm-project/pull/154841