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use the new isFreeCall API and ArgOperand accessors 

llvm-svn: 106692
This commit is contained in:
Gabor Greif 2010-06-23 22:48:06 +00:00
parent 574f304631
commit 253c6bf366
1 changed files with 13 additions and 12 deletions
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25
llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
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@ -116,8 +116,8 @@ getCallSiteDependencyFrom(CallSite CS, bool isReadOnlyCall,
} else if (VAArgInst *V = dyn_cast<VAArgInst>(Inst)) {
Pointer = V->getOperand(0);
PointerSize = AA->getTypeStoreSize(V->getType());
} else if (isFreeCall(Inst)) {
Pointer = Inst->getOperand(1);
} else if (const CallInst *CI = isFreeCall(Inst)) {
Pointer = CI->getArgOperand(0);
// calls to free() erase the entire structure
PointerSize = ~0ULL;
} else if (isa<CallInst>(Inst) || isa<InvokeInst>(Inst)) {
@ -197,9 +197,9 @@ getPointerDependencyFrom(Value *MemPtr, uint64_t MemSize, bool isLoad,
// pointer, not on query pointers that are indexed off of them. It'd
// be nice to handle that at some point.
AliasAnalysis::AliasResult R =
AA->alias(II->getOperand(3), ~0U, MemPtr, ~0U);
AA->alias(II->getArgOperand(2), ~0U, MemPtr, ~0U);
if (R == AliasAnalysis::MustAlias) {
InvariantTag = II->getOperand(1);
InvariantTag = II->getArgOperand(0);
continue;
}
@ -210,7 +210,7 @@ getPointerDependencyFrom(Value *MemPtr, uint64_t MemSize, bool isLoad,
// pointer, not on query pointers that are indexed off of them. It'd
// be nice to handle that at some point.
AliasAnalysis::AliasResult R =
AA->alias(II->getOperand(2), ~0U, MemPtr, ~0U);
AA->alias(II->getArgOperand(1), ~0U, MemPtr, ~0U);
if (R == AliasAnalysis::MustAlias)
return MemDepResult::getDef(II);
}
@ -365,25 +365,26 @@ MemDepResult MemoryDependenceAnalysis::getDependency(Instruction *QueryInst) {
MemPtr = LI->getPointerOperand();
MemSize = AA->getTypeStoreSize(LI->getType());
}
} else if (isFreeCall(QueryInst)) {
MemPtr = QueryInst->getOperand(1);
} else if (const CallInst *CI = isFreeCall(QueryInst)) {
MemPtr = CI->getArgOperand(0);
// calls to free() erase the entire structure, not just a field.
MemSize = ~0UL;
} else if (isa<CallInst>(QueryInst) || isa<InvokeInst>(QueryInst)) {
int IntrinsicID = 0; // Intrinsic IDs start at 1.
if (IntrinsicInst *II = dyn_cast<IntrinsicInst>(QueryInst))
IntrinsicInst *II = dyn_cast<IntrinsicInst>(QueryInst);
if (II)
IntrinsicID = II->getIntrinsicID();
switch (IntrinsicID) {
case Intrinsic::lifetime_start:
case Intrinsic::lifetime_end:
case Intrinsic::invariant_start:
MemPtr = QueryInst->getOperand(2);
MemSize = cast<ConstantInt>(QueryInst->getOperand(1))->getZExtValue();
MemPtr = II->getArgOperand(1);
MemSize = cast<ConstantInt>(II->getArgOperand(0))->getZExtValue();
break;
case Intrinsic::invariant_end:
MemPtr = QueryInst->getOperand(3);
MemSize = cast<ConstantInt>(QueryInst->getOperand(2))->getZExtValue();
MemPtr = II->getArgOperand(2);
MemSize = cast<ConstantInt>(II->getArgOperand(1))->getZExtValue();
break;
default:
CallSite QueryCS = CallSite::get(QueryInst);