6277 static void UpdateDbgValueInst(DVIRecoveryRec &DVIRec,  in UpdateDbgValueInst()  argument
6283     updateDVIWithLocation(*DVIRec.DVI, NewLocationOps[0], NewExpr);  in UpdateDbgValueInst()
6290     updateDVIWithLocation(*DVIRec.DVI, NewLocationOps[0], ShortenedOps);  in UpdateDbgValueInst()
6293     updateDVIWithLocations(*DVIRec.DVI, NewLocationOps, NewExpr);  in UpdateDbgValueInst()
6299   DIExpression *SalvageExpr = DVIRec.DVI->getExpression();  in UpdateDbgValueInst()
6300   if (!DVIRec.Expr->isComplex() && SalvageExpr->isComplex()) {  in UpdateDbgValueInst()
6302     DVIRec.DVI->setExpression(SalvageExpr);  in UpdateDbgValueInst()
6316 static void restorePreTransformState(DVIRecoveryRec &DVIRec) {  in restorePreTransformState()  argument
6318                     << "scev-salvage: post-LSR: " << *DVIRec.DVI << '\n');  in restorePreTransformState()
6319   assert(DVIRec.Expr && "Expected an expression");  in restorePreTransformState()
6320   DVIRec.DVI->setExpression(DVIRec.Expr);  in restorePreTransformState()
6324   if (!DVIRec.HadLocationArgList) {  in restorePreTransformState()
6325     assert(DVIRec.LocationOps.size() == 1 &&  in restorePreTransformState()
6331         getValueOrUndef(DVIRec.LocationOps[0], DVIRec.DVI->getContext());  in restorePreTransformState()
6332     DVIRec.DVI->setRawLocation(ValueAsMetadata::get(CachedValue));  in restorePreTransformState()
6335     for (WeakVH VH : DVIRec.LocationOps) {  in restorePreTransformState()
6336       Value *CachedValue = getValueOrUndef(VH, DVIRec.DVI->getContext());  in restorePreTransformState()
6340     DVIRec.DVI->setRawLocation(  in restorePreTransformState()
6341         llvm::DIArgList::get(DVIRec.DVI->getContext(), ValArrayRef));  in restorePreTransformState()
6343   LLVM_DEBUG(dbgs() << "scev-salvage: pre-LSR: " << *DVIRec.DVI << '\n');  in restorePreTransformState()
6347                        llvm::PHINode *LSRInductionVar, DVIRecoveryRec &DVIRec,  in SalvageDVI()  argument
6350   if (!DVIRec.DVI->isUndef())  in SalvageDVI()
6357   restorePreTransformState(DVIRec);  in SalvageDVI()
6362   LocationOpIndexMap.assign(DVIRec.LocationOps.size(), -1);  in SalvageDVI()
6366   for (unsigned i = 0; i < DVIRec.LocationOps.size(); i++) {  in SalvageDVI()
6367     WeakVH VH = DVIRec.LocationOps[i];  in SalvageDVI()
6381     if (SE.containsErasedValue(DVIRec.SCEVs[i]) ||  in SalvageDVI()
6382         SE.containsUndefs(DVIRec.SCEVs[i])) {  in SalvageDVI()
6390                       << " with SCEV: " << *DVIRec.SCEVs[i] << "\n");  in SalvageDVI()
6392     DVIRec.RecoveryExprs[i] = std::make_unique<SCEVDbgValueBuilder>();  in SalvageDVI()
6393     SCEVDbgValueBuilder *SalvageExpr = DVIRec.RecoveryExprs[i].get();  in SalvageDVI()
6398             SE.computeConstantDifference(DVIRec.SCEVs[i], SCEVInductionVar)) {  in SalvageDVI()
6402     } else if (!SalvageExpr->createIterCountExpr(DVIRec.SCEVs[i], IterCountExpr,  in SalvageDVI()
6410   if (DVIRec.Expr->getNumElements() == 0) {  in SalvageDVI()
6411     assert(DVIRec.RecoveryExprs.size() == 1 &&  in SalvageDVI()
6414     assert(DVIRec.RecoveryExprs[0] &&  in SalvageDVI()
6416     SCEVDbgValueBuilder *B = DVIRec.RecoveryExprs[0].get();  in SalvageDVI()
6419   for (const auto &Op : DVIRec.Expr->expr_ops()) {  in SalvageDVI()
6428         DVIRec.RecoveryExprs[LocationArgIndex].get();  in SalvageDVI()
6443   UpdateDbgValueInst(DVIRec, NewLocationOps, NewExpr);  in SalvageDVI()
6444   LLVM_DEBUG(dbgs() << "scev-salvage: Updated DVI: " << *DVIRec.DVI << "\n");  in SalvageDVI()
6479     for (auto &DVIRec : DVIToUpdate) {  in DbgRewriteSalvageableDVIs()  local
6480       SalvageDVI(L, SE, LSRInductionVar, *DVIRec, SCEVInductionVar,  in DbgRewriteSalvageableDVIs()