if (MIa.hasOrderedMemoryRef() || MIb.hasOrderedMemoryRef())
return false;
+ if (AA && MIa.hasOneMemOperand() && MIb.hasOneMemOperand()) {
+ const MachineMemOperand *MMOa = *MIa.memoperands_begin();
+ const MachineMemOperand *MMOb = *MIb.memoperands_begin();
+ if (MMOa->getValue() && MMOb->getValue()) {
+ MemoryLocation LocA(MMOa->getValue(), MMOa->getSize(), MMOa->getAAInfo());
+ MemoryLocation LocB(MMOb->getValue(), MMOb->getSize(), MMOb->getAAInfo());
+ if (!AA->alias(LocA, LocB))
+ return true;
+ }
+ }
+
// TODO: Should we check the address space from the MachineMemOperand? That
// would allow us to distinguish objects we know don't alias based on the
// underlying address space, even if it was lowered to a different one,