}
template <typename InstT> void visitCallLikeInst(InstT &Inst) {
+ // TODO: Add support for noalias args/all the other fun function attributes
+ // that we can tack on.
SmallVector<Function *, 4> Targets;
if (getPossibleTargets(&Inst, Targets)) {
if (tryInterproceduralAnalysis(Targets, &Inst, Inst.arg_operands()))
Output.clear();
}
+ // Because the function is opaque, we need to note that anything
+ // could have happened to the arguments, and that the result could alias
+ // just about anything, too.
+ // The goal of the loop is in part to unify many Values into one set, so we
+ // don't care if the function is void there.
for (Value *V : Inst.arg_operands())
Output.push_back(Edge(&Inst, V, EdgeType::Assign, AttrAll));
+ if (Inst.getNumArgOperands() == 0 &&
+ Inst.getType() != Type::getVoidTy(Inst.getContext()))
+ Output.push_back(Edge(&Inst, &Inst, EdgeType::Assign, AttrAll));
}
void visitCallInst(CallInst &Inst) { visitCallLikeInst(Inst); }