diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/NewGVN.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/NewGVN.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/NewGVN.cpp b/llvm/lib/Transforms/Scalar/NewGVN.cpp index 5cfbf6baeaa..3245940a0dd 100644 --- a/llvm/lib/Transforms/Scalar/NewGVN.cpp +++ b/llvm/lib/Transforms/Scalar/NewGVN.cpp @@ -955,6 +955,10 @@ const Expression *NewGVN::checkSimplificationResults(Expression *E, CongruenceClass *CC = ValueToClass.lookup(V); if (CC && CC->getDefiningExpr()) { + // If we simplified to something else, we need to communicate + // that we're users of the value we simplified to. + if (I != V) + addAdditionalUsers(V, I); if (I) DEBUG(dbgs() << "Simplified " << *I << " to " << " expression " << *CC->getDefiningExpr() << "\n"); |
