if (!NI)
continue;
- if (MDNode *M = NI->getMetadata(LLVMContext::MD_alias_scope))
- NI->setMetadata(LLVMContext::MD_alias_scope, MDMap[M]);
+ if (MDNode *M = NI->getMetadata(LLVMContext::MD_alias_scope)) {
+ MDNode *NewMD = MDMap[M];
+ // If the call site also had alias scope metadata (a list of scopes to
+ // which instructions inside it might belong), propagate those scopes to
+ // the inlined instructions.
+ if (MDNode *CSM =
+ CS.getInstruction()->getMetadata(LLVMContext::MD_alias_scope))
+ NewMD = MDNode::concatenate(NewMD, CSM);
+ NI->setMetadata(LLVMContext::MD_alias_scope, NewMD);
+ } else if (NI->mayReadOrWriteMemory()) {
+ if (MDNode *M =
+ CS.getInstruction()->getMetadata(LLVMContext::MD_alias_scope))
+ NI->setMetadata(LLVMContext::MD_alias_scope, M);
+ }
- if (MDNode *M = NI->getMetadata(LLVMContext::MD_noalias))
- NI->setMetadata(LLVMContext::MD_noalias, MDMap[M]);
+ if (MDNode *M = NI->getMetadata(LLVMContext::MD_noalias)) {
+ MDNode *NewMD = MDMap[M];
+ // If the call site also had noalias metadata (a list of scopes with
+ // which instructions inside it don't alias), propagate those scopes to
+ // the inlined instructions.
+ if (MDNode *CSM =
+ CS.getInstruction()->getMetadata(LLVMContext::MD_noalias))
+ NewMD = MDNode::concatenate(NewMD, CSM);
+ NI->setMetadata(LLVMContext::MD_noalias, NewMD);
+ } else if (NI->mayReadOrWriteMemory()) {
+ if (MDNode *M =
+ CS.getInstruction()->getMetadata(LLVMContext::MD_noalias))
+ NI->setMetadata(LLVMContext::MD_noalias, M);
+ }
}
// Now that everything has been replaced, delete the dummy nodes.