return DoesNotAccessMemory;
if (F->onlyReadsMemory())
return OnlyReadsMemory;
- if (unsigned id = F->getIntrinsicID()) {
+ if (unsigned id = F->getIntrinsicID())
+ return getModRefBehavior(id);
+ }
+ return UnknownModRefBehavior;
+}
+
+AliasAnalysis::ModRefBehavior AliasAnalysis::getModRefBehavior(unsigned iid) {
#define GET_INTRINSIC_MODREF_BEHAVIOR
#include "llvm/Intrinsics.gen"
#undef GET_INTRINSIC_MODREF_BEHAVIOR
- }
- }
- return UnknownModRefBehavior;
}
AliasAnalysis::ModRefResult
AliasAnalysis::getModRefInfo(CallSite CS, Value *P, unsigned Size) {
- ModRefResult Mask = ModRef;
ModRefBehavior MRB = getModRefBehavior(CS);
if (MRB == DoesNotAccessMemory)
return NoModRef;
- else if (MRB == OnlyReadsMemory)
+
+ ModRefResult Mask = ModRef;
+ if (MRB == OnlyReadsMemory)
Mask = Ref;
else if (MRB == AliasAnalysis::AccessesArguments) {
bool doesAlias = false;
for (CallSite::arg_iterator AI = CS.arg_begin(), AE = CS.arg_end();
AI != AE; ++AI)
- if (alias(*AI, ~0U, P, Size) != NoAlias) {
+ if (!isNoAlias(*AI, ~0U, P, Size)) {
doesAlias = true;
break;
}