diff options
| -rw-r--r-- | lib/Transforms/Scalar/Reassociate.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/Reassociate.cpp b/lib/Transforms/Scalar/Reassociate.cpp index 8596dc70da..365c9f7958 100644 --- a/lib/Transforms/Scalar/Reassociate.cpp +++ b/lib/Transforms/Scalar/Reassociate.cpp @@ -530,7 +530,13 @@ Value *Reassociate::RemoveFactorFromExpression(Value *V, Value *Factor) { return 0; } - if (Factors.size() == 1) return Factors[0].Op; + // If this was just a single multiply, remove the multiply and return the only + // remaining operand. + if (Factors.size() == 1) { + ValueRankMap.erase(BO); + BO->eraseFromParent(); + return Factors[0].Op; + } RewriteExprTree(BO, Factors); return BO; |