diff options
Diffstat (limited to 'lib/Transforms/Utils/SSAUpdater.cpp')
| -rw-r--r-- | lib/Transforms/Utils/SSAUpdater.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/SSAUpdater.cpp b/lib/Transforms/Utils/SSAUpdater.cpp index b3f5289fcd..e568a616b6 100644 --- a/lib/Transforms/Utils/SSAUpdater.cpp +++ b/lib/Transforms/Utils/SSAUpdater.cpp @@ -214,6 +214,11 @@ void SSAUpdater::RewriteUse(Use &U) { else V = GetValueInMiddleOfBlock(User->getParent()); + // Notify that users of the existing value that it is being replaced. + Value *OldVal = U.get(); + if (OldVal != V && OldVal->hasValueHandle()) + ValueHandleBase::ValueIsRAUWd(OldVal, V); + U.set(V); } |