[SimplifyCFG][PGO] Reuse existing `setBranchWeights`#160629

mtrofin merged 1 commit intomainllvm/llvm-project:mainfrom

users/mtrofin/09-25-_simplifycfg_profcheck_fix_artificially-failing_preserve-branchweights.ll_llvm/llvm-project:users/mtrofin/09-25-_simplifycfg_profcheck_fix_artificially-failing_preserve-branchweights.ll_Copy head branch name to clipboard