unsigned Align, const DataLayout *TD) {
int64_t ByteOffset = 0;
Value *Base = V;
- if (TD)
- Base = GetPointerBaseWithConstantOffset(V, ByteOffset, *TD);
+ Base = GetPointerBaseWithConstantOffset(V, ByteOffset, TD);
if (ByteOffset < 0) // out of bounds
return false;
- Type *BaseType = 0;
+ Type *BaseType = nullptr;
unsigned BaseAlign = 0;
if (const AllocaInst *AI = dyn_cast<AllocaInst>(Base)) {
// An alloca is safe to load from as load as it is suitably aligned.
/// it is set to 0, it will scan the whole block. You can also optionally
/// specify an alias analysis implementation, which makes this more precise.
///
-/// If TBAATag is non-null and a load or store is found, the TBAA tag from the
-/// load or store is recorded there. If there is no TBAA tag or if no access
+/// If AATags is non-null and a load or store is found, the AA tags from the
+/// load or store are recorded there. If there are no AA tags or if no access
/// is found, it is left unmodified.
Value *llvm::FindAvailableLoadedValue(Value *Ptr, BasicBlock *ScanBB,
BasicBlock::iterator &ScanFrom,
unsigned MaxInstsToScan,
AliasAnalysis *AA,
- MDNode **TBAATag) {
+ AAMDNodes *AATags) {
if (MaxInstsToScan == 0) MaxInstsToScan = ~0U;
// If we're using alias analysis to disambiguate get the size of *Ptr.
ScanFrom++;
// Don't scan huge blocks.
- if (MaxInstsToScan-- == 0) return 0;
+ if (MaxInstsToScan-- == 0) return nullptr;
--ScanFrom;
// If this is a load of Ptr, the loaded value is available.
// those cases are unlikely.)
if (LoadInst *LI = dyn_cast<LoadInst>(Inst))
if (AreEquivalentAddressValues(LI->getOperand(0), Ptr)) {
- if (TBAATag) *TBAATag = LI->getMetadata(LLVMContext::MD_tbaa);
+ if (AATags) LI->getAAMetadata(*AATags);
return LI;
}
// (This is true even if the store is volatile or atomic, although
// those cases are unlikely.)
if (AreEquivalentAddressValues(SI->getOperand(1), Ptr)) {
- if (TBAATag) *TBAATag = SI->getMetadata(LLVMContext::MD_tbaa);
+ if (AATags) SI->getAAMetadata(*AATags);
return SI->getOperand(0);
}
// Otherwise the store that may or may not alias the pointer, bail out.
++ScanFrom;
- return 0;
+ return nullptr;
}
// If this is some other instruction that may clobber Ptr, bail out.
// May modify the pointer, bail out.
++ScanFrom;
- return 0;
+ return nullptr;
}
}
// Got to the start of the block, we didn't find it, but are done for this
// block.
- return 0;
+ return nullptr;
}