Lines Matching refs:DU
1118 Instruction *cloneIVUser(NarrowIVDefUse DU, const SCEVAddRecExpr *WideAR);
1119 Instruction *cloneArithmeticIVUser(NarrowIVDefUse DU,
1121 Instruction *cloneBitwiseIVUser(NarrowIVDefUse DU);
1127 WidenedRecTy getWideRecurrence(NarrowIVDefUse DU);
1129 WidenedRecTy getExtendedOperandRecurrence(NarrowIVDefUse DU);
1134 Instruction *widenIVUse(NarrowIVDefUse DU, SCEVExpander &Rewriter);
1136 bool widenLoopCompare(NarrowIVDefUse DU);
1137 bool widenWithVariantUse(NarrowIVDefUse DU);
1225 Instruction *WidenIV::cloneIVUser(WidenIV::NarrowIVDefUse DU, in cloneIVUser() argument
1227 unsigned Opcode = DU.NarrowUse->getOpcode(); in cloneIVUser()
1235 return cloneArithmeticIVUser(DU, WideAR); in cloneIVUser()
1243 return cloneBitwiseIVUser(DU); in cloneIVUser()
1247 Instruction *WidenIV::cloneBitwiseIVUser(WidenIV::NarrowIVDefUse DU) { in cloneBitwiseIVUser() argument
1248 Instruction *NarrowUse = DU.NarrowUse; in cloneBitwiseIVUser()
1249 Instruction *NarrowDef = DU.NarrowDef; in cloneBitwiseIVUser()
1250 Instruction *WideDef = DU.WideDef; in cloneBitwiseIVUser()
1277 Instruction *WidenIV::cloneArithmeticIVUser(WidenIV::NarrowIVDefUse DU, in cloneArithmeticIVUser() argument
1279 Instruction *NarrowUse = DU.NarrowUse; in cloneArithmeticIVUser()
1280 Instruction *NarrowDef = DU.NarrowDef; in cloneArithmeticIVUser()
1281 Instruction *WideDef = DU.WideDef; in cloneArithmeticIVUser()
1377 WidenIV::getExtendedOperandRecurrence(WidenIV::NarrowIVDefUse DU) { in getExtendedOperandRecurrence() argument
1379 const unsigned OpCode = DU.NarrowUse->getOpcode(); in getExtendedOperandRecurrence()
1388 DU.NarrowUse->getOperand(0) == DU.NarrowDef ? 1 : 0; in getExtendedOperandRecurrence()
1389 assert(DU.NarrowUse->getOperand(1-ExtendOperIdx) == DU.NarrowDef && "bad DU"); in getExtendedOperandRecurrence()
1392 cast<OverflowingBinaryOperator>(DU.NarrowUse); in getExtendedOperandRecurrence()
1393 ExtendKind ExtKind = getExtendKind(DU.NarrowDef); in getExtendedOperandRecurrence()
1402 if (DU.NeverNegative) { in getExtendedOperandRecurrence()
1412 SE->getSCEV(DU.NarrowUse->getOperand(ExtendOperIdx)); in getExtendedOperandRecurrence()
1425 const SCEV *lhs = SE->getSCEV(DU.WideDef); in getExtendedOperandRecurrence()
1446 WidenIV::WidenedRecTy WidenIV::getWideRecurrence(WidenIV::NarrowIVDefUse DU) { in getWideRecurrence() argument
1447 if (!DU.NarrowUse->getType()->isIntegerTy()) in getWideRecurrence()
1450 const SCEV *NarrowExpr = SE->getSCEV(DU.NarrowUse); in getWideRecurrence()
1460 if (DU.NeverNegative) { in getWideRecurrence()
1468 } else if (getExtendKind(DU.NarrowDef) == ExtendKind::Sign) { in getWideRecurrence()
1483 static void truncateIVUse(WidenIV::NarrowIVDefUse DU, DominatorTree *DT, in truncateIVUse() argument
1485 auto *InsertPt = getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI); in truncateIVUse()
1488 LLVM_DEBUG(dbgs() << "INDVARS: Truncate IV " << *DU.WideDef << " for user " in truncateIVUse()
1489 << *DU.NarrowUse << "\n"); in truncateIVUse()
1491 Value *Trunc = Builder.CreateTrunc(DU.WideDef, DU.NarrowDef->getType()); in truncateIVUse()
1492 DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, Trunc); in truncateIVUse()
1498 bool WidenIV::widenLoopCompare(WidenIV::NarrowIVDefUse DU) { in widenLoopCompare() argument
1499 ICmpInst *Cmp = dyn_cast<ICmpInst>(DU.NarrowUse); in widenLoopCompare()
1517 bool IsSigned = getExtendKind(DU.NarrowDef) == ExtendKind::Sign; in widenLoopCompare()
1518 if (!(DU.NeverNegative || IsSigned == Cmp->isSigned())) in widenLoopCompare()
1521 Value *Op = Cmp->getOperand(Cmp->getOperand(0) == DU.NarrowDef ? 1 : 0); in widenLoopCompare()
1527 DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef); in widenLoopCompare()
1532 DU.NarrowUse->replaceUsesOfWith(Op, ExtOp); in widenLoopCompare()
1557 bool WidenIV::widenWithVariantUse(WidenIV::NarrowIVDefUse DU) { in widenWithVariantUse() argument
1558 Instruction *NarrowUse = DU.NarrowUse; in widenWithVariantUse()
1559 Instruction *NarrowDef = DU.NarrowDef; in widenWithVariantUse()
1560 Instruction *WideDef = DU.WideDef; in widenWithVariantUse()
1734 Instruction *WidenIV::widenIVUse(WidenIV::NarrowIVDefUse DU, SCEVExpander &Rewriter) { in widenIVUse() argument
1735 assert(ExtendKindMap.count(DU.NarrowDef) && in widenIVUse()
1739 if (PHINode *UsePhi = dyn_cast<PHINode>(DU.NarrowUse)) { in widenIVUse()
1745 truncateIVUse(DU, DT, LI); in widenIVUse()
1754 PHINode::Create(DU.WideDef->getType(), 1, UsePhi->getName() + ".wide", in widenIVUse()
1756 WidePhi->addIncoming(DU.WideDef, UsePhi->getIncomingBlock(0)); in widenIVUse()
1759 Value *Trunc = Builder.CreateTrunc(WidePhi, DU.NarrowDef->getType()); in widenIVUse()
1772 return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ExtendKind::Sign; in widenIVUse()
1775 return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ExtendKind::Zero; in widenIVUse()
1779 if ((match(DU.NarrowUse, m_SExtLike(m_Value())) && canWidenBySExt()) || in widenIVUse()
1780 (isa<ZExtInst>(DU.NarrowUse) && canWidenByZExt())) { in widenIVUse()
1781 Value *NewDef = DU.WideDef; in widenIVUse()
1782 if (DU.NarrowUse->getType() != WideType) { in widenIVUse()
1783 unsigned CastWidth = SE->getTypeSizeInBits(DU.NarrowUse->getType()); in widenIVUse()
1787 IRBuilder<> Builder(DU.NarrowUse); in widenIVUse()
1788 NewDef = Builder.CreateTrunc(DU.WideDef, DU.NarrowUse->getType()); in widenIVUse()
1795 << " not wide enough to subsume " << *DU.NarrowUse in widenIVUse()
1797 DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef); in widenIVUse()
1798 NewDef = DU.NarrowUse; in widenIVUse()
1801 if (NewDef != DU.NarrowUse) { in widenIVUse()
1802 LLVM_DEBUG(dbgs() << "INDVARS: eliminating " << *DU.NarrowUse in widenIVUse()
1803 << " replaced by " << *DU.WideDef << "\n"); in widenIVUse()
1805 DU.NarrowUse->replaceAllUsesWith(NewDef); in widenIVUse()
1806 DeadInsts.emplace_back(DU.NarrowUse); in widenIVUse()
1820 WidenedRecTy WideAddRec = getExtendedOperandRecurrence(DU); in widenIVUse()
1822 WideAddRec = getWideRecurrence(DU); in widenIVUse()
1832 Rewriter.hoistIVInc(WideInc, DU.NarrowUse)) in widenIVUse()
1835 WideUse = cloneIVUser(DU, WideAddRec.first); in widenIVUse()
1854 replaceAllDbgUsesWith(*DU.NarrowUse, *WideUse, *WideUse, *DT); in widenIVUse()
1856 ExtendKindMap[DU.NarrowUse] = WideAddRec.second; in widenIVUse()
1866 if (widenLoopCompare(DU)) in widenIVUse()
1874 if (widenWithVariantUse(DU)) in widenIVUse()
1880 truncateIVUse(DU, DT, LI); in widenIVUse()
2002 WidenIV::NarrowIVDefUse DU = NarrowIVUsers.pop_back_val(); in createWideIV() local
2006 Instruction *WideUse = widenIVUse(DU, Rewriter); in createWideIV()
2010 pushNarrowIVUsers(DU.NarrowUse, WideUse); in createWideIV()
2013 if (DU.NarrowDef->use_empty()) in createWideIV()
2014 DeadInsts.emplace_back(DU.NarrowDef); in createWideIV()