+ // Handle any function attribute group forward references.
+ for (std::map<Value*, std::vector<unsigned> >::iterator
+ I = ForwardRefAttrGroups.begin(), E = ForwardRefAttrGroups.end();
+ I != E; ++I) {
+ Value *V = I->first;
+ std::vector<unsigned> &Vec = I->second;
+ AttrBuilder B;
+
+ for (std::vector<unsigned>::iterator VI = Vec.begin(), VE = Vec.end();
+ VI != VE; ++VI)
+ B.merge(NumberedAttrBuilders[*VI]);
+
+ if (Function *Fn = dyn_cast<Function>(V)) {
+ AttributeSet AS = Fn->getAttributes();
+ AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
+ AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
+ AS.getFnAttributes());
+
+ FnAttrs.merge(B);
+
+ // If the alignment was parsed as an attribute, move to the alignment
+ // field.
+ if (FnAttrs.hasAlignmentAttr()) {
+ Fn->setAlignment(FnAttrs.getAlignment());
+ FnAttrs.removeAttribute(Attribute::Alignment);
+ }
+
+ AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
+ AttributeSet::get(Context,
+ AttributeSet::FunctionIndex,
+ FnAttrs));
+ Fn->setAttributes(AS);
+ } else if (CallInst *CI = dyn_cast<CallInst>(V)) {
+ AttributeSet AS = CI->getAttributes();
+ AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
+ AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
+ AS.getFnAttributes());
+ FnAttrs.merge(B);
+ AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
+ AttributeSet::get(Context,
+ AttributeSet::FunctionIndex,
+ FnAttrs));
+ CI->setAttributes(AS);
+ } else if (InvokeInst *II = dyn_cast<InvokeInst>(V)) {
+ AttributeSet AS = II->getAttributes();
+ AttrBuilder FnAttrs(AS.getFnAttributes(), AttributeSet::FunctionIndex);
+ AS = AS.removeAttributes(Context, AttributeSet::FunctionIndex,
+ AS.getFnAttributes());
+ FnAttrs.merge(B);
+ AS = AS.addAttributes(Context, AttributeSet::FunctionIndex,
+ AttributeSet::get(Context,
+ AttributeSet::FunctionIndex,
+ FnAttrs));
+ II->setAttributes(AS);
+ } else {
+ llvm_unreachable("invalid object with forward attribute group reference");
+ }
+ }