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back out r109504, breaks the bots 

llvm-svn: 109508
This commit is contained in:
Gabor Greif 2010-07-27 15:18:11 +00:00
parent 6014edd117
commit ed1d92cb9a
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
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@ -120,9 +120,10 @@ getCallSiteDependencyFrom(CallSite CS, bool isReadOnlyCall,
Pointer = CI->getArgOperand(0); Pointer = CI->getArgOperand(0);
// calls to free() erase the entire structure // calls to free() erase the entire structure
PointerSize = ~0ULL; PointerSize = ~0ULL;
} else if (CallSite InstCS = Inst) { } else if (isa<CallInst>(Inst) || isa<InvokeInst>(Inst)) {
// Debug intrinsics don't cause dependences. // Debug intrinsics don't cause dependences.
if (isa<DbgInfoIntrinsic>(Inst)) continue; if (isa<DbgInfoIntrinsic>(Inst)) continue;
CallSite InstCS = CallSite::get(Inst);
// If these two calls do not interfere, look past it. // If these two calls do not interfere, look past it.
switch (AA->getModRefInfo(CS, InstCS)) { switch (AA->getModRefInfo(CS, InstCS)) {
case AliasAnalysis::NoModRef: case AliasAnalysis::NoModRef:
@ -386,7 +387,7 @@ MemDepResult MemoryDependenceAnalysis::getDependency(Instruction *QueryInst) {
MemSize = cast<ConstantInt>(II->getArgOperand(1))->getZExtValue(); MemSize = cast<ConstantInt>(II->getArgOperand(1))->getZExtValue();
break; break;
default: default:
CallSite QueryCS(QueryInst); CallSite QueryCS = CallSite::get(QueryInst);
bool isReadOnly = AA->onlyReadsMemory(QueryCS); bool isReadOnly = AA->onlyReadsMemory(QueryCS);
LocalCache = getCallSiteDependencyFrom(QueryCS, isReadOnly, ScanPos, LocalCache = getCallSiteDependencyFrom(QueryCS, isReadOnly, ScanPos,
QueryParent); QueryParent);