UsedGlobals.count(GV))
continue;
- // Ignore any constants which may be removed by the linker.
- if (GV->mayBeRemovedByLinker())
+ // This transformation is legal for weak ODR globals in the sense it
+ // doesn't change semantics, but we really don't want to perform it
+ // anyway; it's likely to pessimize code generation, and some tools
+ // (like the Darwin linker in cases involving CFString) don't expect it.
+ if (GV->isWeakForLinker())
continue;
Constant *Init = GV->getInitializer();
UsedGlobals.count(GV))
continue;
- // We can only replace constants with local linkage and which aren't
- // removed by the linker.
- if (!GV->hasLocalLinkage() || GV->mayBeRemovedByLinker())
+ // We can only replace constant with local linkage.
+ if (!GV->hasLocalLinkage())
continue;
Constant *Init = GV->getInitializer();