assert(!CallSites.count(I->first) &&
"Call site occurs in node multiple times");
- CallSites.insert(std::make_pair(I->first, I->second));
+
+ CallSite CS(I->first);
+ if (CS) {
+ Function *Callee = CS.getCalledFunction();
+ // Ignore intrinsics because they're not really function calls.
+ if (!Callee || !(Callee->isIntrinsic()))
+ CallSites.insert(std::make_pair(I->first, I->second));
+ }
++I;
}