Lines Matching defs:UseInst

1148   /// Returns true if \p UseInst completely overwrites \p DefLoc
1151                            Instruction *UseInst) {
1152     // UseInst has a MemoryDef associated in MemorySSA. It's possible for a
1155     if (!UseInst->mayWriteToMemory())
1158     if (auto *CB = dyn_cast<CallBase>(UseInst))
1163     if (auto CC = getLocForWrite(UseInst))
1164       return isOverwrite(UseInst, DefInst, *CC, DefLoc, InstWriteOffset,
1197       Instruction *UseInst = cast<MemoryUseOrDef>(UseAccess)->getMemoryInst();
1198       if (isReadClobber(DefLoc, UseInst)) {
1199         LLVM_DEBUG(dbgs() << "  ... hit read clobber " << *UseInst << ".\n");
1264   bool isReadClobber(const MemoryLocation &DefLoc, Instruction *UseInst) {
1265     if (isNoopIntrinsic(UseInst))
1270     if (auto SI = dyn_cast<StoreInst>(UseInst))
1273     if (!UseInst->mayReadFromMemory())
1276     if (auto *CB = dyn_cast<CallBase>(UseInst))
1280     return isRefSet(BatchAA.getModRefInfo(UseInst, DefLoc));
1536       Instruction *UseInst = cast<MemoryUseOrDef>(UseAccess)->getMemoryInst();
1537       LLVM_DEBUG(dbgs() << " (" << *UseInst << ")\n");
1539       if (any_of(KillingDefs, [this, UseInst](Instruction *KI) {
1540             return DT.dominates(KI, UseInst);
1548       if (isMemTerminator(MaybeDeadLoc, MaybeDeadI, UseInst)) {
1561       if (UseInst->mayThrow() && !isInvisibleToCallerOnUnwind(KillingUndObj)) {
1568       if (isReadClobber(MaybeDeadLoc, UseInst)) {
1601         if (isCompleteOverwrite(MaybeDeadLoc, MaybeDeadI, UseInst)) {
1602           BasicBlock *MaybeKillingBlock = UseInst->getParent();
1607                          << "    ... found killing def " << *UseInst << "\n");
1608               KillingDefs.insert(UseInst);
1612                        << "    ... found preceeding def " << *UseInst << "\n");