diff options
| -rw-r--r-- | llvm/lib/Transforms/Scalar/Reassociate.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/Reassociate.cpp b/llvm/lib/Transforms/Scalar/Reassociate.cpp index 6b761c5bec7..75f646d1d43 100644 --- a/llvm/lib/Transforms/Scalar/Reassociate.cpp +++ b/llvm/lib/Transforms/Scalar/Reassociate.cpp @@ -2227,8 +2227,13 @@ PreservedAnalyses ReassociatePass::run(Function &F) { RankMap.clear(); ValueRankMap.clear(); - if (MadeChange) - return PreservedAnalyses::none(); + if (MadeChange) { + // FIXME: Reassociate should also 'preserve the CFG'. + // The new pass manager has currently no way to do it. + auto PA = PreservedAnalyses(); + PA.preserve<GlobalsAA>(); + return PA; + } return PreservedAnalyses::all(); } |
