bool AfterLegalize;
bool Fast;
- // Create a dummy node (which is not added to allnodes), that adds a reference
- // to the root node, preventing it from being deleted, and tracking any
- // changes of the root.
- HandleSDNode Dummy;
-
// Worklist of all of the nodes that need to be simplified.
- SmallVector<SDNode*, 8> WorkList;
-
- // The current position of our iteration through the allnodes list.
- SelectionDAG::allnodes_iterator CurNode;
+ std::vector<SDNode*> WorkList;
// AA - Used for DAG load/store alias analysis.
AliasAnalysis &AA;
- /// AdvanceCurNode - Update CurNode to point to the next node to process.
- ///
- void AdvanceCurNode() {
- // We start at the end of the list and work towards the front. Setting
- // CurNode to DAG.allnodes_end() indicates that we're done.
- if (CurNode == DAG.allnodes_begin())
- CurNode = DAG.allnodes_end();
- else
- --CurNode;
- }
-
/// AddUsersToWorkList - When an instruction is simplified, add all users of
/// the instruction to the work lists because they might get more simplified
/// now.
void removeFromWorkList(SDNode *N) {
WorkList.erase(std::remove(WorkList.begin(), WorkList.end(), N),
WorkList.end());
- // If the next node we were planning to process is deleted,
- // skip past it.
- if (N == CurNode)
- AdvanceCurNode();
}
SDValue CombineTo(SDNode *N, const SDValue *To, unsigned NumTo,
// Visitation implementation - Implement dag node combining for different
// node types. The semantics are as follows:
// Return Value:
- // SDValue.Val == 0 - No change was made
- // SDValue.Val == N - N was replaced, is dead, and is already handled.
- // otherwise - N should be replaced by the returned Operand.
+ // SDValue.getNode() == 0 - No change was made
+ // SDValue.getNode() == N - N was replaced, is dead and has been handled.
+ // otherwise - N should be replaced by the returned Operand.
//
SDValue visitTokenFactor(SDNode *N);
SDValue visitMERGE_VALUES(SDNode *N);
TLI(D.getTargetLoweringInfo()),
AfterLegalize(false),
Fast(fast),
- Dummy(D.getRoot()),
AA(A) {}
/// Run - runs the dag combiner on all nodes in the work list
void Run(bool RunningAfterLegalize);
-
- /// ProcessNode - runs the dag combiner on a node
- void ProcessNode(SDNode *N);
};
}
// free when it is profitable to do so.
static bool isOneUseSetCC(SDValue N) {
SDValue N0, N1, N2;
- if (isSetCCEquivalent(N, N0, N1, N2) && N.Val->hasOneUse())
+ if (isSetCCEquivalent(N, N0, N1, N2) && N.getNode()->hasOneUse())
return true;
return false;
}
if (N0.getOpcode() == Opc && isa<ConstantSDNode>(N0.getOperand(1))) {
if (isa<ConstantSDNode>(N1)) {
SDValue OpNode = DAG.getNode(Opc, VT, N0.getOperand(1), N1);
- AddToWorkList(OpNode.Val);
+ AddToWorkList(OpNode.getNode());
return DAG.getNode(Opc, VT, OpNode, N0.getOperand(0));
} else if (N0.hasOneUse()) {
SDValue OpNode = DAG.getNode(Opc, VT, N0.getOperand(0), N1);
- AddToWorkList(OpNode.Val);
+ AddToWorkList(OpNode.getNode());
return DAG.getNode(Opc, VT, OpNode, N0.getOperand(1));
}
}
if (N1.getOpcode() == Opc && isa<ConstantSDNode>(N1.getOperand(1))) {
if (isa<ConstantSDNode>(N0)) {
SDValue OpNode = DAG.getNode(Opc, VT, N1.getOperand(1), N0);
- AddToWorkList(OpNode.Val);
+ AddToWorkList(OpNode.getNode());
return DAG.getNode(Opc, VT, OpNode, N1.getOperand(0));
} else if (N1.hasOneUse()) {
SDValue OpNode = DAG.getNode(Opc, VT, N1.getOperand(0), N0);
- AddToWorkList(OpNode.Val);
+ AddToWorkList(OpNode.getNode());
return DAG.getNode(Opc, VT, OpNode, N1.getOperand(1));
}
}
assert(N->getNumValues() == NumTo && "Broken CombineTo call!");
++NodesCombined;
DOUT << "\nReplacing.1 "; DEBUG(N->dump(&DAG));
- DOUT << "\nWith: "; DEBUG(To[0].Val->dump(&DAG));
+ DOUT << "\nWith: "; DEBUG(To[0].getNode()->dump(&DAG));
DOUT << " and " << NumTo-1 << " other values\n";
WorkListRemover DeadNodes(*this);
DAG.ReplaceAllUsesWith(N, To, &DeadNodes);
if (AddTo) {
// Push the new nodes and any users onto the worklist
for (unsigned i = 0, e = NumTo; i != e; ++i) {
- AddToWorkList(To[i].Val);
- AddUsersToWorkList(To[i].Val);
+ AddToWorkList(To[i].getNode());
+ AddUsersToWorkList(To[i].getNode());
}
}
return false;
// Revisit the node.
- AddToWorkList(Op.Val);
+ AddToWorkList(Op.getNode());
// Replace the old value with the new one.
++NodesCombined;
- DOUT << "\nReplacing.2 "; DEBUG(TLO.Old.Val->dump(&DAG));
- DOUT << "\nWith: "; DEBUG(TLO.New.Val->dump(&DAG));
+ DOUT << "\nReplacing.2 "; DEBUG(TLO.Old.getNode()->dump(&DAG));
+ DOUT << "\nWith: "; DEBUG(TLO.New.getNode()->dump(&DAG));
DOUT << '\n';
// Replace all uses. If any nodes become isomorphic to other nodes and
DAG.ReplaceAllUsesOfValueWith(TLO.Old, TLO.New, &DeadNodes);
// Push the new node and any (possibly new) users onto the worklist.
- AddToWorkList(TLO.New.Val);
- AddUsersToWorkList(TLO.New.Val);
+ AddToWorkList(TLO.New.getNode());
+ AddUsersToWorkList(TLO.New.getNode());
// Finally, if the node is now dead, remove it from the graph. The node
// may not be dead if the replacement process recursively simplified to
// something else needing this node.
- if (TLO.Old.Val->use_empty()) {
- removeFromWorkList(TLO.Old.Val);
+ if (TLO.Old.getNode()->use_empty()) {
+ removeFromWorkList(TLO.Old.getNode());
// If the operands of this node are only used by the node, they will now
// be dead. Make sure to visit them first to delete dead nodes early.
- for (unsigned i = 0, e = TLO.Old.Val->getNumOperands(); i != e; ++i)
- if (TLO.Old.Val->getOperand(i).Val->hasOneUse())
- AddToWorkList(TLO.Old.Val->getOperand(i).Val);
+ for (unsigned i = 0, e = TLO.Old.getNode()->getNumOperands(); i != e; ++i)
+ if (TLO.Old.getNode()->getOperand(i).getNode()->hasOneUse())
+ AddToWorkList(TLO.Old.getNode()->getOperand(i).getNode());
- DAG.DeleteNode(TLO.Old.Val);
+ DAG.DeleteNode(TLO.Old.getNode());
}
return true;
}
// Main DAG Combiner implementation
//===----------------------------------------------------------------------===//
-void DAGCombiner::ProcessNode(SDNode *N) {
- // If N has no uses, it is dead. Make sure to revisit all N's operands once
- // N is deleted from the DAG, since they too may now be dead or may have a
- // reduced number of uses, allowing other xforms.
- if (N->use_empty() && N != &Dummy) {
- for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
- AddToWorkList(N->getOperand(i).Val);
-
- DAG.DeleteNode(N);
- return;
- }
-
- SDValue RV = combine(N);
-
- if (RV.Val == 0)
- return;
-
- ++NodesCombined;
-
- // If we get back the same node we passed in, rather than a new node or
- // zero, we know that the node must have defined multiple values and
- // CombineTo was used. Since CombineTo takes care of the worklist
- // mechanics for us, we have no work to do in this case.
- if (RV.Val == N)
- return;
-
- assert(N->getOpcode() != ISD::DELETED_NODE &&
- RV.Val->getOpcode() != ISD::DELETED_NODE &&
- "Node was deleted but visit returned new node!");
-
- DOUT << "\nReplacing.3 "; DEBUG(N->dump(&DAG));
- DOUT << "\nWith: "; DEBUG(RV.Val->dump(&DAG));
- DOUT << '\n';
-
- if (N->getNumValues() == RV.Val->getNumValues())
- DAG.ReplaceAllUsesWith(N, RV.Val);
- else {
- assert(N->getValueType(0) == RV.getValueType() &&
- N->getNumValues() == 1 && "Type mismatch");
- SDValue OpV = RV;
- DAG.ReplaceAllUsesWith(N, &OpV);
- }
-
- // Delete the old node.
- removeFromWorkList(N);
- DAG.DeleteNode(N);
-
- // Push the new node and any users onto the worklist
- AddToWorkList(RV.Val);
- AddUsersToWorkList(RV.Val);
-}
-
void DAGCombiner::Run(bool RunningAfterLegalize) {
// set the instance variable, so that the various visit routines may use it.
AfterLegalize = RunningAfterLegalize;
+ // Add all the dag nodes to the worklist.
+ WorkList.reserve(DAG.allnodes_size());
+ for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(),
+ E = DAG.allnodes_end(); I != E; ++I)
+ WorkList.push_back(I);
+
+ // Create a dummy node (which is not added to allnodes), that adds a reference
+ // to the root node, preventing it from being deleted, and tracking any
+ // changes of the root.
+ HandleSDNode Dummy(DAG.getRoot());
+
// The root of the dag may dangle to deleted nodes until the dag combiner is
// done. Set it to null to avoid confusion.
DAG.setRoot(SDValue());
- // Process all the original dag nodes. We process starting from the
- // end of the list and working forward, which is in roughly topological
- // order. Starting at the end and working forward means we won't
- // accidentally revisit nodes created during the dagcombine process.
- CurNode = prior(DAG.allnodes_end());
- do {
- SDNode *N = &*CurNode;
- AdvanceCurNode();
- ProcessNode(N);
- // Processing the node may have resulted in nodes being added to the
- // worklist, because the were newly created or because one of their
- // operands changed or some other reason they should be revisited.
- // While the worklist isn't empty, inspect the node on the end of it
- // and try and combine it.
- while (!WorkList.empty()) {
- SDNode *N = WorkList.back();
- WorkList.pop_back();
- if (N == CurNode)
- AdvanceCurNode();
- ProcessNode(N);
+ // while the worklist isn't empty, inspect the node on the end of it and
+ // try and combine it.
+ while (!WorkList.empty()) {
+ SDNode *N = WorkList.back();
+ WorkList.pop_back();
+
+ // If N has no uses, it is dead. Make sure to revisit all N's operands once
+ // N is deleted from the DAG, since they too may now be dead or may have a
+ // reduced number of uses, allowing other xforms.
+ if (N->use_empty() && N != &Dummy) {
+ for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
+ AddToWorkList(N->getOperand(i).getNode());
+
+ DAG.DeleteNode(N);
+ continue;
}
- } while (CurNode != DAG.allnodes_end());
-
+
+ SDValue RV = combine(N);
+
+ if (RV.getNode() == 0)
+ continue;
+
+ ++NodesCombined;
+
+ // If we get back the same node we passed in, rather than a new node or
+ // zero, we know that the node must have defined multiple values and
+ // CombineTo was used. Since CombineTo takes care of the worklist
+ // mechanics for us, we have no work to do in this case.
+ if (RV.getNode() == N)
+ continue;
+
+ assert(N->getOpcode() != ISD::DELETED_NODE &&
+ RV.getNode()->getOpcode() != ISD::DELETED_NODE &&
+ "Node was deleted but visit returned new node!");
+
+ DOUT << "\nReplacing.3 "; DEBUG(N->dump(&DAG));
+ DOUT << "\nWith: "; DEBUG(RV.getNode()->dump(&DAG));
+ DOUT << '\n';
+ WorkListRemover DeadNodes(*this);
+ if (N->getNumValues() == RV.getNode()->getNumValues())
+ DAG.ReplaceAllUsesWith(N, RV.getNode(), &DeadNodes);
+ else {
+ assert(N->getValueType(0) == RV.getValueType() &&
+ N->getNumValues() == 1 && "Type mismatch");
+ SDValue OpV = RV;
+ DAG.ReplaceAllUsesWith(N, &OpV, &DeadNodes);
+ }
+
+ // Push the new node and any users onto the worklist
+ AddToWorkList(RV.getNode());
+ AddUsersToWorkList(RV.getNode());
+
+ // Add any uses of the old node to the worklist in case this node is the
+ // last one that uses them. They may become dead after this node is
+ // deleted.
+ for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
+ AddToWorkList(N->getOperand(i).getNode());
+
+ // Nodes can be reintroduced into the worklist. Make sure we do not
+ // process a node that has been replaced.
+ removeFromWorkList(N);
+
+ // Finally, since the node is now dead, remove it from the graph.
+ DAG.DeleteNode(N);
+ }
+
// If the root changed (e.g. it was a dead load, update the root).
DAG.setRoot(Dummy.getValue());
}
SDValue RV = visit(N);
// If nothing happened, try a target-specific DAG combine.
- if (RV.Val == 0) {
+ if (RV.getNode() == 0) {
assert(N->getOpcode() != ISD::DELETED_NODE &&
"Node was deleted but visit returned NULL!");
// If N is a commutative binary node, try commuting it to enable more
// sdisel CSE.
- if (RV.Val == 0 &&
+ if (RV.getNode() == 0 &&
SelectionDAG::isCommutativeBinOp(N->getOpcode()) &&
N->getNumValues() == 1) {
SDValue N0 = N->getOperand(0);
// If N has two operands, where one has an input chain equal to the other,
// the 'other' chain is redundant.
if (N->getNumOperands() == 2) {
- if (getInputChainForNode(N->getOperand(0).Val) == N->getOperand(1))
+ if (getInputChainForNode(N->getOperand(0).getNode()) == N->getOperand(1))
return N->getOperand(0);
- if (getInputChainForNode(N->getOperand(1).Val) == N->getOperand(0))
+ if (getInputChainForNode(N->getOperand(1).getNode()) == N->getOperand(0))
return N->getOperand(1);
}
case ISD::TokenFactor:
if ((CombinerAA || Op.hasOneUse()) &&
- std::find(TFs.begin(), TFs.end(), Op.Val) == TFs.end()) {
+ std::find(TFs.begin(), TFs.end(), Op.getNode()) == TFs.end()) {
// Queue up for processing.
- TFs.push_back(Op.Val);
+ TFs.push_back(Op.getNode());
// Clean up in case the token factor is removed.
- AddToWorkList(Op.Val);
+ AddToWorkList(Op.getNode());
Changed = true;
break;
}
default:
// Only add if it isn't already in the list.
- if (SeenOps.insert(Op.Val))
+ if (SeenOps.insert(Op.getNode()))
Ops.push_back(Op);
else
Changed = true;
SDValue N00 = N0.getOperand(0);
SDValue N01 = N0.getOperand(1);
ConstantSDNode *N01C = dyn_cast<ConstantSDNode>(N01);
- if (N01C && N00.getOpcode() == ISD::ADD && N00.Val->hasOneUse() &&
+ if (N01C && N00.getOpcode() == ISD::ADD && N00.getNode()->hasOneUse() &&
isa<ConstantSDNode>(N00.getOperand(1))) {
N0 = DAG.getNode(ISD::ADD, VT,
DAG.getNode(ISD::SHL, VT, N00.getOperand(0), N01),
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (add x, undef) -> undef
return N1;
// fold (add c1, c2) -> c1+c2
if (N0C && N1C)
- return DAG.getConstant(N0C->getAPIntValue() + N1C->getAPIntValue(), VT);
+ return DAG.FoldConstantArithmetic(ISD::ADD, VT, N0C, N1C);
// canonicalize constant to RHS
if (N0C && !N1C)
return DAG.getNode(ISD::ADD, VT, N1, N0);
// fold (add x, 0) -> x
if (N1C && N1C->isNullValue())
return N0;
+ // fold (add Sym, c) -> Sym+c
+ if (GlobalAddressSDNode *GA = dyn_cast<GlobalAddressSDNode>(N0))
+ if (!AfterLegalize && TLI.isOffsetFoldingLegal(GA) && N1C &&
+ GA->getOpcode() == ISD::GlobalAddress)
+ return DAG.getGlobalAddress(GA->getGlobal(), VT,
+ GA->getOffset() +
+ (uint64_t)N1C->getSExtValue());
// fold ((c1-A)+c2) -> (c1+c2)-A
if (N1C && N0.getOpcode() == ISD::SUB)
if (ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.getOperand(0)))
N0.getOperand(1));
// reassociate add
SDValue RADD = ReassociateOps(ISD::ADD, N0, N1);
- if (RADD.Val != 0)
+ if (RADD.getNode() != 0)
return RADD;
// fold ((0-A) + B) -> B-A
if (N0.getOpcode() == ISD::SUB && isa<ConstantSDNode>(N0.getOperand(0)) &&
}
// fold (add (shl (add x, c1), c2), ) -> (add (add (shl x, c2), c1<<c2), )
- if (N0.getOpcode() == ISD::SHL && N0.Val->hasOneUse()) {
+ if (N0.getOpcode() == ISD::SHL && N0.getNode()->hasOneUse()) {
SDValue Result = combineShlAddConstant(N0, N1, DAG);
- if (Result.Val) return Result;
+ if (Result.getNode()) return Result;
}
- if (N1.getOpcode() == ISD::SHL && N1.Val->hasOneUse()) {
+ if (N1.getOpcode() == ISD::SHL && N1.getNode()->hasOneUse()) {
SDValue Result = combineShlAddConstant(N1, N0, DAG);
- if (Result.Val) return Result;
+ if (Result.getNode()) return Result;
}
// fold (add (select cc, 0, c), x) -> (select cc, x, (add, x, c))
- if (N0.getOpcode() == ISD::SELECT && N0.Val->hasOneUse()) {
+ if (N0.getOpcode() == ISD::SELECT && N0.getNode()->hasOneUse()) {
SDValue Result = combineSelectAndUse(N, N0, N1, DAG);
- if (Result.Val) return Result;
+ if (Result.getNode()) return Result;
}
- if (N1.getOpcode() == ISD::SELECT && N1.Val->hasOneUse()) {
+ if (N1.getOpcode() == ISD::SELECT && N1.getNode()->hasOneUse()) {
SDValue Result = combineSelectAndUse(N, N1, N0, DAG);
- if (Result.Val) return Result;
+ if (Result.getNode()) return Result;
}
return SDValue();
SDValue DAGCombiner::visitSUB(SDNode *N) {
SDValue N0 = N->getOperand(0);
SDValue N1 = N->getOperand(1);
- ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.Val);
- ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
+ ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.getNode());
+ ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode());
MVT VT = N0.getValueType();
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (sub x, x) -> 0
return DAG.getConstant(0, N->getValueType(0));
// fold (sub c1, c2) -> c1-c2
if (N0C && N1C)
- return DAG.getNode(ISD::SUB, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::SUB, VT, N0C, N1C);
// fold (sub x, c) -> (add x, -c)
if (N1C)
return DAG.getNode(ISD::ADD, VT, N0,
if (N0.getOpcode() == ISD::ADD && N0.getOperand(1) == N1)
return N0.getOperand(0);
// fold (sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c))
- if (N1.getOpcode() == ISD::SELECT && N1.Val->hasOneUse()) {
+ if (N1.getOpcode() == ISD::SELECT && N1.getNode()->hasOneUse()) {
SDValue Result = combineSelectAndUse(N, N1, N0, DAG);
- if (Result.Val) return Result;
+ if (Result.getNode()) return Result;
}
// If either operand of a sub is undef, the result is undef
if (N0.getOpcode() == ISD::UNDEF)
if (N1.getOpcode() == ISD::UNDEF)
return N1;
+ // If the relocation model supports it, consider symbol offsets.
+ if (GlobalAddressSDNode *GA = dyn_cast<GlobalAddressSDNode>(N0))
+ if (!AfterLegalize && TLI.isOffsetFoldingLegal(GA)) {
+ // fold (sub Sym, c) -> Sym-c
+ if (N1C && GA->getOpcode() == ISD::GlobalAddress)
+ return DAG.getGlobalAddress(GA->getGlobal(), VT,
+ GA->getOffset() -
+ (uint64_t)N1C->getSExtValue());
+ // fold (sub Sym+c1, Sym+c2) -> c1-c2
+ if (GlobalAddressSDNode *GB = dyn_cast<GlobalAddressSDNode>(N1))
+ if (GA->getGlobal() == GB->getGlobal())
+ return DAG.getConstant((uint64_t)GA->getOffset() - GB->getOffset(),
+ VT);
+ }
+
return SDValue();
}
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (mul x, undef) -> 0
return DAG.getConstant(0, VT);
// fold (mul c1, c2) -> c1*c2
if (N0C && N1C)
- return DAG.getNode(ISD::MUL, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::MUL, VT, N0C, N1C);
// canonicalize constant to RHS
if (N0C && !N1C)
return DAG.getNode(ISD::MUL, VT, N1, N0);
DAG.getConstant(N1C->getAPIntValue().logBase2(),
TLI.getShiftAmountTy()));
// fold (mul x, -(1 << c)) -> -(x << c) or (-x) << c
- if (N1C && isPowerOf2_64(-N1C->getSignExtended())) {
+ if (N1C && isPowerOf2_64(-N1C->getSExtValue())) {
// FIXME: If the input is something that is easily negated (e.g. a
// single-use add), we should put the negate there.
return DAG.getNode(ISD::SUB, VT, DAG.getConstant(0, VT),
DAG.getNode(ISD::SHL, VT, N0,
- DAG.getConstant(Log2_64(-N1C->getSignExtended()),
+ DAG.getConstant(Log2_64(-N1C->getSExtValue()),
TLI.getShiftAmountTy())));
}
if (N1C && N0.getOpcode() == ISD::SHL &&
isa<ConstantSDNode>(N0.getOperand(1))) {
SDValue C3 = DAG.getNode(ISD::SHL, VT, N1, N0.getOperand(1));
- AddToWorkList(C3.Val);
+ AddToWorkList(C3.getNode());
return DAG.getNode(ISD::MUL, VT, N0.getOperand(0), C3);
}
SDValue Sh(0,0), Y(0,0);
// Check for both (mul (shl X, C), Y) and (mul Y, (shl X, C)).
if (N0.getOpcode() == ISD::SHL && isa<ConstantSDNode>(N0.getOperand(1)) &&
- N0.Val->hasOneUse()) {
+ N0.getNode()->hasOneUse()) {
Sh = N0; Y = N1;
} else if (N1.getOpcode() == ISD::SHL &&
- isa<ConstantSDNode>(N1.getOperand(1)) && N1.Val->hasOneUse()) {
+ isa<ConstantSDNode>(N1.getOperand(1)) &&
+ N1.getNode()->hasOneUse()) {
Sh = N1; Y = N0;
}
- if (Sh.Val) {
+ if (Sh.getNode()) {
SDValue Mul = DAG.getNode(ISD::MUL, VT, Sh.getOperand(0), Y);
return DAG.getNode(ISD::SHL, VT, Mul, Sh.getOperand(1));
}
}
// fold (mul (add x, c1), c2) -> (add (mul x, c2), c1*c2)
- if (N1C && N0.getOpcode() == ISD::ADD && N0.Val->hasOneUse() &&
+ if (N1C && N0.getOpcode() == ISD::ADD && N0.getNode()->hasOneUse() &&
isa<ConstantSDNode>(N0.getOperand(1))) {
return DAG.getNode(ISD::ADD, VT,
DAG.getNode(ISD::MUL, VT, N0.getOperand(0), N1),
// reassociate mul
SDValue RMUL = ReassociateOps(ISD::MUL, N0, N1);
- if (RMUL.Val != 0)
+ if (RMUL.getNode() != 0)
return RMUL;
return SDValue();
SDValue DAGCombiner::visitSDIV(SDNode *N) {
SDValue N0 = N->getOperand(0);
SDValue N1 = N->getOperand(1);
- ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.Val);
- ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
+ ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.getNode());
+ ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode());
MVT VT = N->getValueType(0);
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (sdiv c1, c2) -> c1/c2
if (N0C && N1C && !N1C->isNullValue())
- return DAG.getNode(ISD::SDIV, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::SDIV, VT, N0C, N1C);
// fold (sdiv X, 1) -> X
- if (N1C && N1C->getSignExtended() == 1LL)
+ if (N1C && N1C->getSExtValue() == 1LL)
return N0;
// fold (sdiv X, -1) -> 0-X
if (N1C && N1C->isAllOnesValue())
}
// fold (sdiv X, pow2) -> simple ops after legalize
if (N1C && !N1C->isNullValue() && !TLI.isIntDivCheap() &&
- (isPowerOf2_64(N1C->getSignExtended()) ||
- isPowerOf2_64(-N1C->getSignExtended()))) {
+ (isPowerOf2_64(N1C->getSExtValue()) ||
+ isPowerOf2_64(-N1C->getSExtValue()))) {
// If dividing by powers of two is cheap, then don't perform the following
// fold.
if (TLI.isPow2DivCheap())
return SDValue();
- int64_t pow2 = N1C->getSignExtended();
+ int64_t pow2 = N1C->getSExtValue();
int64_t abs2 = pow2 > 0 ? pow2 : -pow2;
unsigned lg2 = Log2_64(abs2);
// Splat the sign bit into the register
SDValue SGN = DAG.getNode(ISD::SRA, VT, N0,
DAG.getConstant(VT.getSizeInBits()-1,
TLI.getShiftAmountTy()));
- AddToWorkList(SGN.Val);
+ AddToWorkList(SGN.getNode());
// Add (N0 < 0) ? abs2 - 1 : 0;
SDValue SRL = DAG.getNode(ISD::SRL, VT, SGN,
DAG.getConstant(VT.getSizeInBits()-lg2,
TLI.getShiftAmountTy()));
SDValue ADD = DAG.getNode(ISD::ADD, VT, N0, SRL);
- AddToWorkList(SRL.Val);
- AddToWorkList(ADD.Val); // Divide by pow2
+ AddToWorkList(SRL.getNode());
+ AddToWorkList(ADD.getNode()); // Divide by pow2
SDValue SRA = DAG.getNode(ISD::SRA, VT, ADD,
DAG.getConstant(lg2, TLI.getShiftAmountTy()));
// If we're dividing by a positive value, we're done. Otherwise, we must
// negate the result.
if (pow2 > 0)
return SRA;
- AddToWorkList(SRA.Val);
+ AddToWorkList(SRA.getNode());
return DAG.getNode(ISD::SUB, VT, DAG.getConstant(0, VT), SRA);
}
// if integer divide is expensive and we satisfy the requirements, emit an
// alternate sequence.
- if (N1C && (N1C->getSignExtended() < -1 || N1C->getSignExtended() > 1) &&
+ if (N1C && (N1C->getSExtValue() < -1 || N1C->getSExtValue() > 1) &&
!TLI.isIntDivCheap()) {
SDValue Op = BuildSDIV(N);
- if (Op.Val) return Op;
+ if (Op.getNode()) return Op;
}
// undef / X -> 0
SDValue DAGCombiner::visitUDIV(SDNode *N) {
SDValue N0 = N->getOperand(0);
SDValue N1 = N->getOperand(1);
- ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.Val);
- ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
+ ConstantSDNode *N0C = dyn_cast<ConstantSDNode>(N0.getNode());
+ ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode());
MVT VT = N->getValueType(0);
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (udiv c1, c2) -> c1/c2
if (N0C && N1C && !N1C->isNullValue())
- return DAG.getNode(ISD::UDIV, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::UDIV, VT, N0C, N1C);
// fold (udiv x, (1 << c)) -> x >>u c
if (N1C && N1C->getAPIntValue().isPowerOf2())
return DAG.getNode(ISD::SRL, VT, N0,
DAG.getConstant(SHC->getAPIntValue()
.logBase2(),
ADDVT));
- AddToWorkList(Add.Val);
+ AddToWorkList(Add.getNode());
return DAG.getNode(ISD::SRL, VT, N0, Add);
}
}
// fold (udiv x, c) -> alternate
if (N1C && !N1C->isNullValue() && !TLI.isIntDivCheap()) {
SDValue Op = BuildUDIV(N);
- if (Op.Val) return Op;
+ if (Op.getNode()) return Op;
}
// undef / X -> 0
// fold (srem c1, c2) -> c1%c2
if (N0C && N1C && !N1C->isNullValue())
- return DAG.getNode(ISD::SREM, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::SREM, VT, N0C, N1C);
// If we know the sign bits of both operands are zero, strength reduce to a
// urem instead. Handles (X & 0x0FFFFFFF) %s 16 -> X&15
if (!VT.isVector()) {
// X%C to the equivalent of X-X/C*C.
if (N1C && !N1C->isNullValue()) {
SDValue Div = DAG.getNode(ISD::SDIV, VT, N0, N1);
- AddToWorkList(Div.Val);
- SDValue OptimizedDiv = combine(Div.Val);
- if (OptimizedDiv.Val && OptimizedDiv.Val != Div.Val) {
+ AddToWorkList(Div.getNode());
+ SDValue OptimizedDiv = combine(Div.getNode());
+ if (OptimizedDiv.getNode() && OptimizedDiv.getNode() != Div.getNode()) {
SDValue Mul = DAG.getNode(ISD::MUL, VT, OptimizedDiv, N1);
SDValue Sub = DAG.getNode(ISD::SUB, VT, N0, Mul);
- AddToWorkList(Mul.Val);
+ AddToWorkList(Mul.getNode());
return Sub;
}
}
// fold (urem c1, c2) -> c1%c2
if (N0C && N1C && !N1C->isNullValue())
- return DAG.getNode(ISD::UREM, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::UREM, VT, N0C, N1C);
// fold (urem x, pow2) -> (and x, pow2-1)
if (N1C && !N1C->isNullValue() && N1C->getAPIntValue().isPowerOf2())
return DAG.getNode(ISD::AND, VT, N0,
DAG.getNode(ISD::ADD, VT, N1,
DAG.getConstant(APInt::getAllOnesValue(VT.getSizeInBits()),
VT));
- AddToWorkList(Add.Val);
+ AddToWorkList(Add.getNode());
return DAG.getNode(ISD::AND, VT, N0, Add);
}
}
// X%C to the equivalent of X-X/C*C.
if (N1C && !N1C->isNullValue()) {
SDValue Div = DAG.getNode(ISD::UDIV, VT, N0, N1);
- SDValue OptimizedDiv = combine(Div.Val);
- if (OptimizedDiv.Val && OptimizedDiv.Val != Div.Val) {
+ AddToWorkList(Div.getNode());
+ SDValue OptimizedDiv = combine(Div.getNode());
+ if (OptimizedDiv.getNode() && OptimizedDiv.getNode() != Div.getNode()) {
SDValue Mul = DAG.getNode(ISD::MUL, VT, OptimizedDiv, N1);
SDValue Sub = DAG.getNode(ISD::SUB, VT, N0, Mul);
- AddToWorkList(Mul.Val);
+ AddToWorkList(Mul.getNode());
return Sub;
}
}
if (LoExists) {
SDValue Lo = DAG.getNode(LoOp, N->getValueType(0),
N->op_begin(), N->getNumOperands());
- AddToWorkList(Lo.Val);
- SDValue LoOpt = combine(Lo.Val);
- if (LoOpt.Val && LoOpt.Val != Lo.Val &&
+ AddToWorkList(Lo.getNode());
+ SDValue LoOpt = combine(Lo.getNode());
+ if (LoOpt.getNode() && LoOpt.getNode() != Lo.getNode() &&
(!AfterLegalize ||
TLI.isOperationLegal(LoOpt.getOpcode(), LoOpt.getValueType())))
return CombineTo(N, LoOpt, LoOpt);
if (HiExists) {
SDValue Hi = DAG.getNode(HiOp, N->getValueType(1),
N->op_begin(), N->getNumOperands());
- AddToWorkList(Hi.Val);
- SDValue HiOpt = combine(Hi.Val);
- if (HiOpt.Val && HiOpt != Hi &&
+ AddToWorkList(Hi.getNode());
+ SDValue HiOpt = combine(Hi.getNode());
+ if (HiOpt.getNode() && HiOpt != Hi &&
(!AfterLegalize ||
TLI.isOperationLegal(HiOpt.getOpcode(), HiOpt.getValueType())))
return CombineTo(N, HiOpt, HiOpt);
SDValue DAGCombiner::visitSMUL_LOHI(SDNode *N) {
SDValue Res = SimplifyNodeWithTwoResults(N, ISD::MUL, ISD::MULHS);
- if (Res.Val) return Res;
+ if (Res.getNode()) return Res;
return SDValue();
}
SDValue DAGCombiner::visitUMUL_LOHI(SDNode *N) {
SDValue Res = SimplifyNodeWithTwoResults(N, ISD::MUL, ISD::MULHU);
- if (Res.Val) return Res;
+ if (Res.getNode()) return Res;
return SDValue();
}
SDValue DAGCombiner::visitSDIVREM(SDNode *N) {
SDValue Res = SimplifyNodeWithTwoResults(N, ISD::SDIV, ISD::SREM);
- if (Res.Val) return Res;
+ if (Res.getNode()) return Res;
return SDValue();
}
SDValue DAGCombiner::visitUDIVREM(SDNode *N) {
SDValue Res = SimplifyNodeWithTwoResults(N, ISD::UDIV, ISD::UREM);
- if (Res.Val) return Res;
+ if (Res.getNode()) return Res;
return SDValue();
}
SDValue ORNode = DAG.getNode(N->getOpcode(),
N0.getOperand(0).getValueType(),
N0.getOperand(0), N1.getOperand(0));
- AddToWorkList(ORNode.Val);
+ AddToWorkList(ORNode.getNode());
return DAG.getNode(N0.getOpcode(), VT, ORNode);
}
SDValue ORNode = DAG.getNode(N->getOpcode(),
N0.getOperand(0).getValueType(),
N0.getOperand(0), N1.getOperand(0));
- AddToWorkList(ORNode.Val);
+ AddToWorkList(ORNode.getNode());
return DAG.getNode(N0.getOpcode(), VT, ORNode, N0.getOperand(1));
}
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (and x, undef) -> 0
return DAG.getConstant(0, VT);
// fold (and c1, c2) -> c1&c2
if (N0C && N1C)
- return DAG.getNode(ISD::AND, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::AND, VT, N0C, N1C);
// canonicalize constant to RHS
if (N0C && !N1C)
return DAG.getNode(ISD::AND, VT, N1, N0);
return DAG.getConstant(0, VT);
// reassociate and
SDValue RAND = ReassociateOps(ISD::AND, N0, N1);
- if (RAND.Val != 0)
+ if (RAND.getNode() != 0)
return RAND;
// fold (and (or x, 0xFFFF), 0xFF) -> 0xFF
if (N1C && N0.getOpcode() == ISD::OR)
// We actually want to replace all uses of the any_extend with the
// zero_extend, to avoid duplicating things. This will later cause this
// AND to be folded.
- CombineTo(N0.Val, Zext);
+ CombineTo(N0.getNode(), Zext);
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
}
// fold (X == 0) & (Y == 0) -> (X|Y == 0)
if (cast<ConstantSDNode>(LR)->isNullValue() && Op1 == ISD::SETEQ) {
SDValue ORNode = DAG.getNode(ISD::OR, LR.getValueType(), LL, RL);
- AddToWorkList(ORNode.Val);
+ AddToWorkList(ORNode.getNode());
return DAG.getSetCC(VT, ORNode, LR, Op1);
}
// fold (X == -1) & (Y == -1) -> (X&Y == -1)
if (cast<ConstantSDNode>(LR)->isAllOnesValue() && Op1 == ISD::SETEQ) {
SDValue ANDNode = DAG.getNode(ISD::AND, LR.getValueType(), LL, RL);
- AddToWorkList(ANDNode.Val);
+ AddToWorkList(ANDNode.getNode());
return DAG.getSetCC(VT, ANDNode, LR, Op1);
}
// fold (X > -1) & (Y > -1) -> (X|Y > -1)
if (cast<ConstantSDNode>(LR)->isAllOnesValue() && Op1 == ISD::SETGT) {
SDValue ORNode = DAG.getNode(ISD::OR, LR.getValueType(), LL, RL);
- AddToWorkList(ORNode.Val);
+ AddToWorkList(ORNode.getNode());
return DAG.getSetCC(VT, ORNode, LR, Op1);
}
}
if (LL == RL && LR == RR) {
bool isInteger = LL.getValueType().isInteger();
ISD::CondCode Result = ISD::getSetCCAndOperation(Op0, Op1, isInteger);
- if (Result != ISD::SETCC_INVALID)
+ if (Result != ISD::SETCC_INVALID &&
+ (!AfterLegalize || TLI.isCondCodeLegal(Result, LL.getValueType())))
return DAG.getSetCC(N0.getValueType(), LL, LR, Result);
}
}
// Simplify: and (op x...), (op y...) -> (op (and x, y))
if (N0.getOpcode() == N1.getOpcode()) {
SDValue Tmp = SimplifyBinOpWithSameOpcodeHands(N);
- if (Tmp.Val) return Tmp;
+ if (Tmp.getNode()) return Tmp;
}
// fold (and (sign_extend_inreg x, i16 to i32), 1) -> (and x, 1)
SimplifyDemandedBits(SDValue(N, 0)))
return SDValue(N, 0);
// fold (zext_inreg (extload x)) -> (zextload x)
- if (ISD::isEXTLoad(N0.Val) && ISD::isUNINDEXEDLoad(N0.Val)) {
+ if (ISD::isEXTLoad(N0.getNode()) && ISD::isUNINDEXEDLoad(N0.getNode())) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
MVT EVT = LN0->getMemoryVT();
// If we zero all the possible extended bits, then we can turn this into
if (DAG.MaskedValueIsZero(N1, APInt::getHighBitsSet(BitWidth,
BitWidth - EVT.getSizeInBits())) &&
((!AfterLegalize && !LN0->isVolatile()) ||
- TLI.isLoadXLegal(ISD::ZEXTLOAD, EVT))) {
+ TLI.isLoadExtLegal(ISD::ZEXTLOAD, EVT))) {
SDValue ExtLoad = DAG.getExtLoad(ISD::ZEXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->getSrcValueOffset(), EVT,
LN0->isVolatile(),
LN0->getAlignment());
AddToWorkList(N);
- CombineTo(N0.Val, ExtLoad, ExtLoad.getValue(1));
+ CombineTo(N0.getNode(), ExtLoad, ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
}
// fold (zext_inreg (sextload x)) -> (zextload x) iff load has one use
- if (ISD::isSEXTLoad(N0.Val) && ISD::isUNINDEXEDLoad(N0.Val) &&
+ if (ISD::isSEXTLoad(N0.getNode()) && ISD::isUNINDEXEDLoad(N0.getNode()) &&
N0.hasOneUse()) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
MVT EVT = LN0->getMemoryVT();
if (DAG.MaskedValueIsZero(N1, APInt::getHighBitsSet(BitWidth,
BitWidth - EVT.getSizeInBits())) &&
((!AfterLegalize && !LN0->isVolatile()) ||
- TLI.isLoadXLegal(ISD::ZEXTLOAD, EVT))) {
+ TLI.isLoadExtLegal(ISD::ZEXTLOAD, EVT))) {
SDValue ExtLoad = DAG.getExtLoad(ISD::ZEXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->getSrcValueOffset(), EVT,
LN0->isVolatile(),
LN0->getAlignment());
AddToWorkList(N);
- CombineTo(N0.Val, ExtLoad, ExtLoad.getValue(1));
+ CombineTo(N0.getNode(), ExtLoad, ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
}
// Do not generate loads of non-round integer types since these can
// be expensive (and would be wrong if the type is not byte sized).
if (EVT != MVT::Other && LoadedVT.bitsGT(EVT) && EVT.isRound() &&
- (!AfterLegalize || TLI.isLoadXLegal(ISD::ZEXTLOAD, EVT))) {
+ (!AfterLegalize || TLI.isLoadExtLegal(ISD::ZEXTLOAD, EVT))) {
MVT PtrType = N0.getOperand(1).getValueType();
// For big endian targets, we need to add an offset to the pointer to
// load the correct bytes. For little endian systems, we merely need to
DAG.getConstant(PtrOff, PtrType));
Alignment = MinAlign(Alignment, PtrOff);
}
- AddToWorkList(NewPtr.Val);
+ AddToWorkList(NewPtr.getNode());
SDValue Load =
DAG.getExtLoad(ISD::ZEXTLOAD, VT, LN0->getChain(), NewPtr,
LN0->getSrcValue(), LN0->getSrcValueOffset(), EVT,
LN0->isVolatile(), Alignment);
AddToWorkList(N);
- CombineTo(N0.Val, Load, Load.getValue(1));
+ CombineTo(N0.getNode(), Load, Load.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
}
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (or x, undef) -> -1
return DAG.getConstant(~0ULL, VT);
// fold (or c1, c2) -> c1|c2
if (N0C && N1C)
- return DAG.getNode(ISD::OR, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::OR, VT, N0C, N1C);
// canonicalize constant to RHS
if (N0C && !N1C)
return DAG.getNode(ISD::OR, VT, N1, N0);
return N1;
// reassociate or
SDValue ROR = ReassociateOps(ISD::OR, N0, N1);
- if (ROR.Val != 0)
+ if (ROR.getNode() != 0)
return ROR;
// Canonicalize (or (and X, c1), c2) -> (and (or X, c2), c1|c2)
- if (N1C && N0.getOpcode() == ISD::AND && N0.Val->hasOneUse() &&
+ if (N1C && N0.getOpcode() == ISD::AND && N0.getNode()->hasOneUse() &&
isa<ConstantSDNode>(N0.getOperand(1))) {
ConstantSDNode *C1 = cast<ConstantSDNode>(N0.getOperand(1));
return DAG.getNode(ISD::AND, VT, DAG.getNode(ISD::OR, VT, N0.getOperand(0),
if (cast<ConstantSDNode>(LR)->isNullValue() &&
(Op1 == ISD::SETNE || Op1 == ISD::SETLT)) {
SDValue ORNode = DAG.getNode(ISD::OR, LR.getValueType(), LL, RL);
- AddToWorkList(ORNode.Val);
+ AddToWorkList(ORNode.getNode());
return DAG.getSetCC(VT, ORNode, LR, Op1);
}
// fold (X != -1) | (Y != -1) -> (X&Y != -1)
if (cast<ConstantSDNode>(LR)->isAllOnesValue() &&
(Op1 == ISD::SETNE || Op1 == ISD::SETGT)) {
SDValue ANDNode = DAG.getNode(ISD::AND, LR.getValueType(), LL, RL);
- AddToWorkList(ANDNode.Val);
+ AddToWorkList(ANDNode.getNode());
return DAG.getSetCC(VT, ANDNode, LR, Op1);
}
}
if (LL == RL && LR == RR) {
bool isInteger = LL.getValueType().isInteger();
ISD::CondCode Result = ISD::getSetCCOrOperation(Op0, Op1, isInteger);
- if (Result != ISD::SETCC_INVALID)
+ if (Result != ISD::SETCC_INVALID &&
+ (!AfterLegalize || TLI.isCondCodeLegal(Result, LL.getValueType())))
return DAG.getSetCC(N0.getValueType(), LL, LR, Result);
}
}
// Simplify: or (op x...), (op y...) -> (op (or x, y))
if (N0.getOpcode() == N1.getOpcode()) {
SDValue Tmp = SimplifyBinOpWithSameOpcodeHands(N);
- if (Tmp.Val) return Tmp;
+ if (Tmp.getNode()) return Tmp;
}
// (X & C1) | (Y & C2) -> (X|Y) & C3 if possible.
N0.getOperand(1).getOpcode() == ISD::Constant &&
N1.getOperand(1).getOpcode() == ISD::Constant &&
// Don't increase # computations.
- (N0.Val->hasOneUse() || N1.Val->hasOneUse())) {
+ (N0.getNode()->hasOneUse() || N1.getNode()->hasOneUse())) {
// We can only do this xform if we know that bits from X that are set in C2
// but not in C1 are already zero. Likewise for Y.
const APInt &LHSMask =
// fold (or (shl x, C1), (srl x, C2)) -> (rotr x, C2)
if (LHSShiftAmt.getOpcode() == ISD::Constant &&
RHSShiftAmt.getOpcode() == ISD::Constant) {
- uint64_t LShVal = cast<ConstantSDNode>(LHSShiftAmt)->getValue();
- uint64_t RShVal = cast<ConstantSDNode>(RHSShiftAmt)->getValue();
+ uint64_t LShVal = cast<ConstantSDNode>(LHSShiftAmt)->getZExtValue();
+ uint64_t RShVal = cast<ConstantSDNode>(RHSShiftAmt)->getZExtValue();
if ((LShVal + RShVal) != OpSizeInBits)
return 0;
Rot = DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt);
// If there is an AND of either shifted operand, apply it to the result.
- if (LHSMask.Val || RHSMask.Val) {
+ if (LHSMask.getNode() || RHSMask.getNode()) {
APInt Mask = APInt::getAllOnesValue(OpSizeInBits);
- if (LHSMask.Val) {
+ if (LHSMask.getNode()) {
APInt RHSBits = APInt::getLowBitsSet(OpSizeInBits, LShVal);
Mask &= cast<ConstantSDNode>(LHSMask)->getAPIntValue() | RHSBits;
}
- if (RHSMask.Val) {
+ if (RHSMask.getNode()) {
APInt LHSBits = APInt::getHighBitsSet(OpSizeInBits, RShVal);
Mask &= cast<ConstantSDNode>(RHSMask)->getAPIntValue() | LHSBits;
}
Rot = DAG.getNode(ISD::AND, VT, Rot, DAG.getConstant(Mask, VT));
}
- return Rot.Val;
+ return Rot.getNode();
}
// If there is a mask here, and we have a variable shift, we can't be sure
// that we're masking out the right stuff.
- if (LHSMask.Val || RHSMask.Val)
+ if (LHSMask.getNode() || RHSMask.getNode())
return 0;
// fold (or (shl x, y), (srl x, (sub 32, y))) -> (rotl x, y)
dyn_cast<ConstantSDNode>(RHSShiftAmt.getOperand(0))) {
if (SUBC->getAPIntValue() == OpSizeInBits) {
if (HasROTL)
- return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).Val;
+ return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).getNode();
else
- return DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt).Val;
+ return DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt).getNode();
}
}
}
if (ConstantSDNode *SUBC =
dyn_cast<ConstantSDNode>(LHSShiftAmt.getOperand(0))) {
if (SUBC->getAPIntValue() == OpSizeInBits) {
- if (HasROTL)
- return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).Val;
+ if (HasROTR)
+ return DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt).getNode();
else
- return DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt).Val;
+ return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).getNode();
}
}
}
- // Look for sign/zext/any-extended cases:
+ // Look for sign/zext/any-extended or truncate cases:
if ((LHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND
|| LHSShiftAmt.getOpcode() == ISD::ZERO_EXTEND
- || LHSShiftAmt.getOpcode() == ISD::ANY_EXTEND) &&
+ || LHSShiftAmt.getOpcode() == ISD::ANY_EXTEND
+ || LHSShiftAmt.getOpcode() == ISD::TRUNCATE) &&
(RHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND
|| RHSShiftAmt.getOpcode() == ISD::ZERO_EXTEND
- || RHSShiftAmt.getOpcode() == ISD::ANY_EXTEND)) {
+ || RHSShiftAmt.getOpcode() == ISD::ANY_EXTEND
+ || RHSShiftAmt.getOpcode() == ISD::TRUNCATE)) {
SDValue LExtOp0 = LHSShiftAmt.getOperand(0);
SDValue RExtOp0 = RHSShiftAmt.getOperand(0);
if (RExtOp0.getOpcode() == ISD::SUB &&
RExtOp0.getOperand(1) == LExtOp0) {
// fold (or (shl x, (*ext y)), (srl x, (*ext (sub 32, y)))) ->
- // (rotr x, y)
+ // (rotl x, y)
// fold (or (shl x, (*ext y)), (srl x, (*ext (sub 32, y)))) ->
- // (rotl x, (sub 32, y))
- if (ConstantSDNode *SUBC = cast<ConstantSDNode>(RExtOp0.getOperand(0))) {
+ // (rotr x, (sub 32, y))
+ if (ConstantSDNode *SUBC =
+ dyn_cast<ConstantSDNode>(RExtOp0.getOperand(0))) {
if (SUBC->getAPIntValue() == OpSizeInBits) {
- if (HasROTL)
- return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).Val;
- else
- return DAG.getNode(ISD::ROTR, VT, LHSShiftArg, RHSShiftAmt).Val;
+ return DAG.getNode(HasROTL ? ISD::ROTL : ISD::ROTR, VT, LHSShiftArg,
+ HasROTL ? LHSShiftAmt : RHSShiftAmt).getNode();
}
}
} else if (LExtOp0.getOpcode() == ISD::SUB &&
RExtOp0 == LExtOp0.getOperand(1)) {
- // fold (or (shl x, (*ext (sub 32, y))), (srl x, (*ext r))) ->
- // (rotl x, y)
- // fold (or (shl x, (*ext (sub 32, y))), (srl x, (*ext r))) ->
- // (rotr x, (sub 32, y))
- if (ConstantSDNode *SUBC = cast<ConstantSDNode>(LExtOp0.getOperand(0))) {
+ // fold (or (shl x, (*ext (sub 32, y))), (srl x, (*ext y))) ->
+ // (rotr x, y)
+ // fold (or (shl x, (*ext (sub 32, y))), (srl x, (*ext y))) ->
+ // (rotl x, (sub 32, y))
+ if (ConstantSDNode *SUBC =
+ dyn_cast<ConstantSDNode>(LExtOp0.getOperand(0))) {
if (SUBC->getAPIntValue() == OpSizeInBits) {
- if (HasROTL)
- return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, RHSShiftAmt).Val;
- else
- return DAG.getNode(ISD::ROTL, VT, LHSShiftArg, LHSShiftAmt).Val;
+ return DAG.getNode(HasROTR ? ISD::ROTR : ISD::ROTL, VT, LHSShiftArg,
+ HasROTR ? RHSShiftAmt : LHSShiftAmt).getNode();
}
}
}
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (xor undef, undef) -> 0. This is a common idiom (misuse).
return N1;
// fold (xor c1, c2) -> c1^c2
if (N0C && N1C)
- return DAG.getNode(ISD::XOR, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::XOR, VT, N0C, N1C);
// canonicalize constant to RHS
if (N0C && !N1C)
return DAG.getNode(ISD::XOR, VT, N1, N0);
return N0;
// reassociate xor
SDValue RXOR = ReassociateOps(ISD::XOR, N0, N1);
- if (RXOR.Val != 0)
+ if (RXOR.getNode() != 0)
return RXOR;
// fold !(x cc y) -> (x !cc y)
if (N1C && N1C->getAPIntValue() == 1 && isSetCCEquivalent(N0, LHS, RHS, CC)) {
}
// fold (not (zext (setcc x, y))) -> (zext (not (setcc x, y)))
if (N1C && N1C->getAPIntValue() == 1 && N0.getOpcode() == ISD::ZERO_EXTEND &&
- N0.Val->hasOneUse() && isSetCCEquivalent(N0.getOperand(0), LHS, RHS, CC)){
+ N0.getNode()->hasOneUse() &&
+ isSetCCEquivalent(N0.getOperand(0), LHS, RHS, CC)){
SDValue V = N0.getOperand(0);
V = DAG.getNode(ISD::XOR, V.getValueType(), V,
DAG.getConstant(1, V.getValueType()));
- AddToWorkList(V.Val);
+ AddToWorkList(V.getNode());
return DAG.getNode(ISD::ZERO_EXTEND, VT, V);
}
unsigned NewOpcode = N0.getOpcode() == ISD::AND ? ISD::OR : ISD::AND;
LHS = DAG.getNode(ISD::XOR, VT, LHS, N1); // RHS = ~LHS
RHS = DAG.getNode(ISD::XOR, VT, RHS, N1); // RHS = ~RHS
- AddToWorkList(LHS.Val); AddToWorkList(RHS.Val);
+ AddToWorkList(LHS.getNode()); AddToWorkList(RHS.getNode());
return DAG.getNode(NewOpcode, VT, LHS, RHS);
}
}
unsigned NewOpcode = N0.getOpcode() == ISD::AND ? ISD::OR : ISD::AND;
LHS = DAG.getNode(ISD::XOR, VT, LHS, N1); // RHS = ~LHS
RHS = DAG.getNode(ISD::XOR, VT, RHS, N1); // RHS = ~RHS
- AddToWorkList(LHS.Val); AddToWorkList(RHS.Val);
+ AddToWorkList(LHS.getNode()); AddToWorkList(RHS.getNode());
return DAG.getNode(NewOpcode, VT, LHS, RHS);
}
}
// Simplify: xor (op x...), (op y...) -> (op (xor x, y))
if (N0.getOpcode() == N1.getOpcode()) {
SDValue Tmp = SimplifyBinOpWithSameOpcodeHands(N);
- if (Tmp.Val) return Tmp;
+ if (Tmp.getNode()) return Tmp;
}
// Simplify the expression using non-local knowledge.
/// visitShiftByConstant - Handle transforms common to the three shifts, when
/// the shift amount is a constant.
SDValue DAGCombiner::visitShiftByConstant(SDNode *N, unsigned Amt) {
- SDNode *LHS = N->getOperand(0).Val;
+ SDNode *LHS = N->getOperand(0).getNode();
if (!LHS->hasOneUse()) return SDValue();
// We want to pull some binops through shifts, so that we have (and (shift))
//
//void foo(int *X, int i) { X[i & 1235] = 1; }
//int bar(int *X, int i) { return X[i & 255]; }
- SDNode *BinOpLHSVal = LHS->getOperand(0).Val;
+ SDNode *BinOpLHSVal = LHS->getOperand(0).getNode();
if ((BinOpLHSVal->getOpcode() != ISD::SHL &&
BinOpLHSVal->getOpcode() != ISD::SRA &&
BinOpLHSVal->getOpcode() != ISD::SRL) ||
// fold (shl c1, c2) -> c1<<c2
if (N0C && N1C)
- return DAG.getNode(ISD::SHL, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::SHL, VT, N0C, N1C);
// fold (shl 0, x) -> 0
if (N0C && N0C->isNullValue())
return N0;
// fold (shl x, c >= size(x)) -> undef
- if (N1C && N1C->getValue() >= OpSizeInBits)
+ if (N1C && N1C->getZExtValue() >= OpSizeInBits)
return DAG.getNode(ISD::UNDEF, VT);
// fold (shl x, 0) -> x
if (N1C && N1C->isNullValue())
if (DAG.MaskedValueIsZero(SDValue(N, 0),
APInt::getAllOnesValue(VT.getSizeInBits())))
return DAG.getConstant(0, VT);
+ // fold (shl x, (trunc (and y, c))) -> (shl x, (and (trunc y), c))
+ // iff (trunc c) == c
+ if (N1.getOpcode() == ISD::TRUNCATE &&
+ N1.getOperand(0).getOpcode() == ISD::AND &&
+ N1.hasOneUse() && N1.getOperand(0).hasOneUse()) {
+ SDValue N101 = N1.getOperand(0).getOperand(1);
+ if (ConstantSDNode *N101C = dyn_cast<ConstantSDNode>(N101)) {
+ MVT TruncVT = N1.getValueType();
+ SDValue N100 = N1.getOperand(0).getOperand(0);
+ return DAG.getNode(ISD::SHL, VT, N0,
+ DAG.getNode(ISD::AND, TruncVT,
+ DAG.getNode(ISD::TRUNCATE, TruncVT, N100),
+ DAG.getConstant(N101C->getZExtValue(),
+ TruncVT)));
+ }
+ }
+
if (N1C && SimplifyDemandedBits(SDValue(N, 0)))
return SDValue(N, 0);
// fold (shl (shl x, c1), c2) -> 0 or (shl x, c1+c2)
if (N1C && N0.getOpcode() == ISD::SHL &&
N0.getOperand(1).getOpcode() == ISD::Constant) {
- uint64_t c1 = cast<ConstantSDNode>(N0.getOperand(1))->getValue();
- uint64_t c2 = N1C->getValue();
+ uint64_t c1 = cast<ConstantSDNode>(N0.getOperand(1))->getZExtValue();
+ uint64_t c2 = N1C->getZExtValue();
if (c1 + c2 > OpSizeInBits)
return DAG.getConstant(0, VT);
return DAG.getNode(ISD::SHL, VT, N0.getOperand(0),
// (srl (and x, -1 << c1), c1-c2)
if (N1C && N0.getOpcode() == ISD::SRL &&
N0.getOperand(1).getOpcode() == ISD::Constant) {
- uint64_t c1 = cast<ConstantSDNode>(N0.getOperand(1))->getValue();
- uint64_t c2 = N1C->getValue();
+ uint64_t c1 = cast<ConstantSDNode>(N0.getOperand(1))->getZExtValue();
+ uint64_t c2 = N1C->getZExtValue();
SDValue Mask = DAG.getNode(ISD::AND, VT, N0.getOperand(0),
DAG.getConstant(~0ULL << c1, VT));
if (c2 > c1)
// fold (shl (sra x, c1), c1) -> (and x, -1 << c1)
if (N1C && N0.getOpcode() == ISD::SRA && N1 == N0.getOperand(1))
return DAG.getNode(ISD::AND, VT, N0.getOperand(0),
- DAG.getConstant(~0ULL << N1C->getValue(), VT));
+ DAG.getConstant(~0ULL << N1C->getZExtValue(), VT));
- return N1C ? visitShiftByConstant(N, N1C->getValue()) : SDValue();
+ return N1C ? visitShiftByConstant(N, N1C->getZExtValue()) : SDValue();
}
SDValue DAGCombiner::visitSRA(SDNode *N) {
// fold (sra c1, c2) -> c1>>c2
if (N0C && N1C)
- return DAG.getNode(ISD::SRA, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::SRA, VT, N0C, N1C);
// fold (sra 0, x) -> 0
if (N0C && N0C->isNullValue())
return N0;
if (N0C && N0C->isAllOnesValue())
return N0;
// fold (sra x, c >= size(x)) -> undef
- if (N1C && N1C->getValue() >= VT.getSizeInBits())
+ if (N1C && N1C->getZExtValue() >= VT.getSizeInBits())
return DAG.getNode(ISD::UNDEF, VT);
// fold (sra x, 0) -> x
if (N1C && N1C->isNullValue())
// fold (sra (shl x, c1), c1) -> sext_inreg for some c1 and target supports
// sext_inreg.
if (N1C && N0.getOpcode() == ISD::SHL && N1 == N0.getOperand(1)) {
- unsigned LowBits = VT.getSizeInBits() - (unsigned)N1C->getValue();
+ unsigned LowBits = VT.getSizeInBits() - (unsigned)N1C->getZExtValue();
MVT EVT = MVT::getIntegerVT(LowBits);
if (EVT.isSimple() && // TODO: remove when apint codegen support lands.
(!AfterLegalize || TLI.isOperationLegal(ISD::SIGN_EXTEND_INREG, EVT)))
// fold (sra (sra x, c1), c2) -> (sra x, c1+c2)
if (N1C && N0.getOpcode() == ISD::SRA) {
if (ConstantSDNode *C1 = dyn_cast<ConstantSDNode>(N0.getOperand(1))) {
- unsigned Sum = N1C->getValue() + C1->getValue();
+ unsigned Sum = N1C->getZExtValue() + C1->getZExtValue();
if (Sum >= VT.getSizeInBits()) Sum = VT.getSizeInBits()-1;
return DAG.getNode(ISD::SRA, VT, N0.getOperand(0),
DAG.getConstant(Sum, N1C->getValueType(0)));
// Determine what the truncate's result bitsize and type would be.
unsigned VTValSize = VT.getSizeInBits();
MVT TruncVT =
- MVT::getIntegerVT(VTValSize - N1C->getValue());
+ MVT::getIntegerVT(VTValSize - N1C->getZExtValue());
// Determine the residual right-shift amount.
- unsigned ShiftAmt = N1C->getValue() - N01C->getValue();
+ unsigned ShiftAmt = N1C->getZExtValue() - N01C->getZExtValue();
// If the shift is not a no-op (in which case this should be just a sign
// extend already), the truncated to type is legal, sign_extend is legal
- // on that type, and the the truncate to that type is both legal and free,
+ // on that type, and the the truncate to that type is both legal and free,
// perform the transform.
if (ShiftAmt &&
TLI.isOperationLegal(ISD::SIGN_EXTEND, TruncVT) &&
}
}
+ // fold (sra x, (trunc (and y, c))) -> (sra x, (and (trunc y), c))
+ // iff (trunc c) == c
+ if (N1.getOpcode() == ISD::TRUNCATE &&
+ N1.getOperand(0).getOpcode() == ISD::AND &&
+ N1.hasOneUse() && N1.getOperand(0).hasOneUse()) {
+ SDValue N101 = N1.getOperand(0).getOperand(1);
+ if (ConstantSDNode *N101C = dyn_cast<ConstantSDNode>(N101)) {
+ MVT TruncVT = N1.getValueType();
+ SDValue N100 = N1.getOperand(0).getOperand(0);
+ return DAG.getNode(ISD::SRA, VT, N0,
+ DAG.getNode(ISD::AND, TruncVT,
+ DAG.getNode(ISD::TRUNCATE, TruncVT, N100),
+ DAG.getConstant(N101C->getZExtValue(),
+ TruncVT)));
+ }
+ }
+
// Simplify, based on bits shifted out of the LHS.
if (N1C && SimplifyDemandedBits(SDValue(N, 0)))
return SDValue(N, 0);
if (DAG.SignBitIsZero(N0))
return DAG.getNode(ISD::SRL, VT, N0, N1);
- return N1C ? visitShiftByConstant(N, N1C->getValue()) : SDValue();
+ return N1C ? visitShiftByConstant(N, N1C->getZExtValue()) : SDValue();
}
SDValue DAGCombiner::visitSRL(SDNode *N) {
// fold (srl c1, c2) -> c1 >>u c2
if (N0C && N1C)
- return DAG.getNode(ISD::SRL, VT, N0, N1);
+ return DAG.FoldConstantArithmetic(ISD::SRL, VT, N0C, N1C);
// fold (srl 0, x) -> 0
if (N0C && N0C->isNullValue())
return N0;
// fold (srl x, c >= size(x)) -> undef
- if (N1C && N1C->getValue() >= OpSizeInBits)
+ if (N1C && N1C->getZExtValue() >= OpSizeInBits)
return DAG.getNode(ISD::UNDEF, VT);
// fold (srl x, 0) -> x
if (N1C && N1C->isNullValue())
// fold (srl (srl x, c1), c2) -> 0 or (srl x, c1+c2)
if (N1C && N0.getOpcode() == ISD::SRL &&
N0.getOperand(1).getOpcode() == ISD::Constant) {
- uint64_t c1 = cast<ConstantSDNode>(N0.getOperand(1))->getValue();
- uint64_t c2 = N1C->getValue();
+ uint64_t c1 = cast<ConstantSDNode>(N0.getOperand(1))->getZExtValue();
+ uint64_t c2 = N1C->getZExtValue();
if (c1 + c2 > OpSizeInBits)
return DAG.getConstant(0, VT);
return DAG.getNode(ISD::SRL, VT, N0.getOperand(0),
if (N1C && N0.getOpcode() == ISD::ANY_EXTEND) {
// Shifting in all undef bits?
MVT SmallVT = N0.getOperand(0).getValueType();
- if (N1C->getValue() >= SmallVT.getSizeInBits())
+ if (N1C->getZExtValue() >= SmallVT.getSizeInBits())
return DAG.getNode(ISD::UNDEF, VT);
SDValue SmallShift = DAG.getNode(ISD::SRL, SmallVT, N0.getOperand(0), N1);
- AddToWorkList(SmallShift.Val);
+ AddToWorkList(SmallShift.getNode());
return DAG.getNode(ISD::ANY_EXTEND, VT, SmallShift);
}
// fold (srl (sra X, Y), 31) -> (srl X, 31). This srl only looks at the sign
// bit, which is unmodified by sra.
- if (N1C && N1C->getValue()+1 == VT.getSizeInBits()) {
+ if (N1C && N1C->getZExtValue()+1 == VT.getSizeInBits()) {
if (N0.getOpcode() == ISD::SRA)
return DAG.getNode(ISD::SRL, VT, N0.getOperand(0), N1);
}
if (ShAmt) {
Op = DAG.getNode(ISD::SRL, VT, Op,
DAG.getConstant(ShAmt, TLI.getShiftAmountTy()));
- AddToWorkList(Op.Val);
+ AddToWorkList(Op.getNode());
}
return DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(1, VT));
}
}
+
+ // fold (srl x, (trunc (and y, c))) -> (srl x, (and (trunc y), c))
+ // iff (trunc c) == c
+ if (N1.getOpcode() == ISD::TRUNCATE &&
+ N1.getOperand(0).getOpcode() == ISD::AND &&
+ N1.hasOneUse() && N1.getOperand(0).hasOneUse()) {
+ SDValue N101 = N1.getOperand(0).getOperand(1);
+ if (ConstantSDNode *N101C = dyn_cast<ConstantSDNode>(N101)) {
+ MVT TruncVT = N1.getValueType();
+ SDValue N100 = N1.getOperand(0).getOperand(0);
+ return DAG.getNode(ISD::SRL, VT, N0,
+ DAG.getNode(ISD::AND, TruncVT,
+ DAG.getNode(ISD::TRUNCATE, TruncVT, N100),
+ DAG.getConstant(N101C->getZExtValue(),
+ TruncVT)));
+ }
+ }
// fold operands of srl based on knowledge that the low bits are not
// demanded.
if (N1C && SimplifyDemandedBits(SDValue(N, 0)))
return SDValue(N, 0);
- return N1C ? visitShiftByConstant(N, N1C->getValue()) : SDValue();
+ return N1C ? visitShiftByConstant(N, N1C->getZExtValue()) : SDValue();
}
SDValue DAGCombiner::visitCTLZ(SDNode *N) {
SDValue XORNode = DAG.getNode(ISD::XOR, VT0, N0, DAG.getConstant(1, VT0));
if (VT == VT0)
return XORNode;
- AddToWorkList(XORNode.Val);
+ AddToWorkList(XORNode.getNode());
if (VT.bitsGT(VT0))
return DAG.getNode(ISD::ZERO_EXTEND, VT, XORNode);
return DAG.getNode(ISD::TRUNCATE, VT, XORNode);
// fold select C, 0, X -> ~C & X
if (VT == VT0 && VT == MVT::i1 && N1C && N1C->isNullValue()) {
SDValue XORNode = DAG.getNode(ISD::XOR, VT, N0, DAG.getConstant(1, VT));
- AddToWorkList(XORNode.Val);
+ AddToWorkList(XORNode.getNode());
return DAG.getNode(ISD::AND, VT, XORNode, N2);
}
// fold select C, X, 1 -> ~C | X
if (VT == VT0 && VT == MVT::i1 && N2C && N2C->getAPIntValue() == 1) {
SDValue XORNode = DAG.getNode(ISD::XOR, VT, N0, DAG.getConstant(1, VT));
- AddToWorkList(XORNode.Val);
+ AddToWorkList(XORNode.getNode());
return DAG.getNode(ISD::OR, VT, XORNode, N1);
}
// fold select C, X, 0 -> C & X
// Determine if the condition we're dealing with is constant
SDValue SCC = SimplifySetCC(TLI.getSetCCResultType(N0), N0, N1, CC, false);
- if (SCC.Val) AddToWorkList(SCC.Val);
+ if (SCC.getNode()) AddToWorkList(SCC.getNode());
- if (ConstantSDNode *SCCC = dyn_cast_or_null<ConstantSDNode>(SCC.Val)) {
+ if (ConstantSDNode *SCCC = dyn_cast_or_null<ConstantSDNode>(SCC.getNode())) {
if (!SCCC->isNullValue())
return N2; // cond always true -> true val
else
}
// Fold to a simpler select_cc
- if (SCC.Val && SCC.getOpcode() == ISD::SETCC)
+ if (SCC.getNode() && SCC.getOpcode() == ISD::SETCC)
return DAG.getNode(ISD::SELECT_CC, N2.getValueType(),
SCC.getOperand(0), SCC.getOperand(1), N2, N3,
SCC.getOperand(2));
TargetLowering &TLI) {
bool HasCopyToRegUses = false;
bool isTruncFree = TLI.isTruncateFree(N->getValueType(0), N0.getValueType());
- for (SDNode::use_iterator UI = N0.Val->use_begin(), UE = N0.Val->use_end();
+ for (SDNode::use_iterator UI = N0.getNode()->use_begin(),
+ UE = N0.getNode()->use_end();
UI != UE; ++UI) {
SDNode *User = *UI;
if (User == N)
SDNode *User = *UI;
for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) {
SDValue UseOp = User->getOperand(i);
- if (UseOp.Val == N && UseOp.getResNo() == 0) {
+ if (UseOp.getNode() == N && UseOp.getResNo() == 0) {
BothLiveOut = true;
break;
}
if (N0.getOpcode() == ISD::TRUNCATE) {
// fold (sext (truncate (load x))) -> (sext (smaller load x))
// fold (sext (truncate (srl (load x), c))) -> (sext (smaller load (x+c/n)))
- SDValue NarrowLoad = ReduceLoadWidth(N0.Val);
- if (NarrowLoad.Val) {
- if (NarrowLoad.Val != N0.Val)
- CombineTo(N0.Val, NarrowLoad);
+ SDValue NarrowLoad = ReduceLoadWidth(N0.getNode());
+ if (NarrowLoad.getNode()) {
+ if (NarrowLoad.getNode() != N0.getNode())
+ CombineTo(N0.getNode(), NarrowLoad);
return DAG.getNode(ISD::SIGN_EXTEND, VT, NarrowLoad);
}
}
// fold (sext (load x)) -> (sext (truncate (sextload x)))
- if (ISD::isNON_EXTLoad(N0.Val) &&
+ if (ISD::isNON_EXTLoad(N0.getNode()) &&
((!AfterLegalize && !cast<LoadSDNode>(N0)->isVolatile()) ||
- TLI.isLoadXLegal(ISD::SEXTLOAD, N0.getValueType()))) {
+ TLI.isLoadExtLegal(ISD::SEXTLOAD, N0.getValueType()))) {
bool DoXform = true;
SmallVector<SDNode*, 4> SetCCs;
if (!N0.hasOneUse())
LN0->getAlignment());
CombineTo(N, ExtLoad);
SDValue Trunc = DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad);
- CombineTo(N0.Val, Trunc, ExtLoad.getValue(1));
+ CombineTo(N0.getNode(), Trunc, ExtLoad.getValue(1));
// Extend SetCC uses if necessary.
for (unsigned i = 0, e = SetCCs.size(); i != e; ++i) {
SDNode *SetCC = SetCCs[i];
// fold (sext (sextload x)) -> (sext (truncate (sextload x)))
// fold (sext ( extload x)) -> (sext (truncate (sextload x)))
- if ((ISD::isSEXTLoad(N0.Val) || ISD::isEXTLoad(N0.Val)) &&
- ISD::isUNINDEXEDLoad(N0.Val) && N0.hasOneUse()) {
+ if ((ISD::isSEXTLoad(N0.getNode()) || ISD::isEXTLoad(N0.getNode())) &&
+ ISD::isUNINDEXEDLoad(N0.getNode()) && N0.hasOneUse()) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
MVT EVT = LN0->getMemoryVT();
if ((!AfterLegalize && !LN0->isVolatile()) ||
- TLI.isLoadXLegal(ISD::SEXTLOAD, EVT)) {
+ TLI.isLoadExtLegal(ISD::SEXTLOAD, EVT)) {
SDValue ExtLoad = DAG.getExtLoad(ISD::SEXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->getSrcValueOffset(), EVT,
LN0->isVolatile(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
- CombineTo(N0.Val, DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
+ CombineTo(N0.getNode(),
+ DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
SimplifySelectCC(N0.getOperand(0), N0.getOperand(1),
DAG.getConstant(~0ULL, VT), DAG.getConstant(0, VT),
cast<CondCodeSDNode>(N0.getOperand(2))->get(), true);
- if (SCC.Val) return SCC;
+ if (SCC.getNode()) return SCC;
}
// fold (sext x) -> (zext x) if the sign bit is known zero.
// fold (zext (truncate (load x))) -> (zext (smaller load x))
// fold (zext (truncate (srl (load x), c))) -> (zext (small load (x+c/n)))
if (N0.getOpcode() == ISD::TRUNCATE) {
- SDValue NarrowLoad = ReduceLoadWidth(N0.Val);
- if (NarrowLoad.Val) {
- if (NarrowLoad.Val != N0.Val)
- CombineTo(N0.Val, NarrowLoad);
+ SDValue NarrowLoad = ReduceLoadWidth(N0.getNode());
+ if (NarrowLoad.getNode()) {
+ if (NarrowLoad.getNode() != N0.getNode())
+ CombineTo(N0.getNode(), NarrowLoad);
return DAG.getNode(ISD::ZERO_EXTEND, VT, NarrowLoad);
}
}
}
// fold (zext (load x)) -> (zext (truncate (zextload x)))
- if (ISD::isNON_EXTLoad(N0.Val) &&
+ if (ISD::isNON_EXTLoad(N0.getNode()) &&
((!AfterLegalize && !cast<LoadSDNode>(N0)->isVolatile()) ||
- TLI.isLoadXLegal(ISD::ZEXTLOAD, N0.getValueType()))) {
+ TLI.isLoadExtLegal(ISD::ZEXTLOAD, N0.getValueType()))) {
bool DoXform = true;
SmallVector<SDNode*, 4> SetCCs;
if (!N0.hasOneUse())
LN0->getAlignment());
CombineTo(N, ExtLoad);
SDValue Trunc = DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad);
- CombineTo(N0.Val, Trunc, ExtLoad.getValue(1));
+ CombineTo(N0.getNode(), Trunc, ExtLoad.getValue(1));
// Extend SetCC uses if necessary.
for (unsigned i = 0, e = SetCCs.size(); i != e; ++i) {
SDNode *SetCC = SetCCs[i];
// fold (zext (zextload x)) -> (zext (truncate (zextload x)))
// fold (zext ( extload x)) -> (zext (truncate (zextload x)))
- if ((ISD::isZEXTLoad(N0.Val) || ISD::isEXTLoad(N0.Val)) &&
- ISD::isUNINDEXEDLoad(N0.Val) && N0.hasOneUse()) {
+ if ((ISD::isZEXTLoad(N0.getNode()) || ISD::isEXTLoad(N0.getNode())) &&
+ ISD::isUNINDEXEDLoad(N0.getNode()) && N0.hasOneUse()) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
MVT EVT = LN0->getMemoryVT();
if ((!AfterLegalize && !LN0->isVolatile()) ||
- TLI.isLoadXLegal(ISD::ZEXTLOAD, EVT)) {
+ TLI.isLoadExtLegal(ISD::ZEXTLOAD, EVT)) {
SDValue ExtLoad = DAG.getExtLoad(ISD::ZEXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->getSrcValueOffset(), EVT,
LN0->isVolatile(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
- CombineTo(N0.Val, DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
+ CombineTo(N0.getNode(),
+ DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
SimplifySelectCC(N0.getOperand(0), N0.getOperand(1),
DAG.getConstant(1, VT), DAG.getConstant(0, VT),
cast<CondCodeSDNode>(N0.getOperand(2))->get(), true);
- if (SCC.Val) return SCC;
+ if (SCC.getNode()) return SCC;
}
return SDValue();
// fold (aext (truncate (load x))) -> (aext (smaller load x))
// fold (aext (truncate (srl (load x), c))) -> (aext (small load (x+c/n)))
if (N0.getOpcode() == ISD::TRUNCATE) {
- SDValue NarrowLoad = ReduceLoadWidth(N0.Val);
- if (NarrowLoad.Val) {
- if (NarrowLoad.Val != N0.Val)
- CombineTo(N0.Val, NarrowLoad);
+ SDValue NarrowLoad = ReduceLoadWidth(N0.getNode());
+ if (NarrowLoad.getNode()) {
+ if (NarrowLoad.getNode() != N0.getNode())
+ CombineTo(N0.getNode(), NarrowLoad);
return DAG.getNode(ISD::ANY_EXTEND, VT, NarrowLoad);
}
}
}
// fold (aext (load x)) -> (aext (truncate (extload x)))
- if (ISD::isNON_EXTLoad(N0.Val) && N0.hasOneUse() &&
+ if (ISD::isNON_EXTLoad(N0.getNode()) && N0.hasOneUse() &&
((!AfterLegalize && !cast<LoadSDNode>(N0)->isVolatile()) ||
- TLI.isLoadXLegal(ISD::EXTLOAD, N0.getValueType()))) {
+ TLI.isLoadExtLegal(ISD::EXTLOAD, N0.getValueType()))) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
SDValue ExtLoad = DAG.getExtLoad(ISD::EXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
// Redirect any chain users to the new load.
- DAG.ReplaceAllUsesOfValueWith(SDValue(LN0, 1), SDValue(ExtLoad.Val, 1));
+ DAG.ReplaceAllUsesOfValueWith(SDValue(LN0, 1),
+ SDValue(ExtLoad.getNode(), 1));
// If any node needs the original loaded value, recompute it.
if (!LN0->use_empty())
CombineTo(LN0, DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
// fold (aext (sextload x)) -> (aext (truncate (sextload x)))
// fold (aext ( extload x)) -> (aext (truncate (extload x)))
if (N0.getOpcode() == ISD::LOAD &&
- !ISD::isNON_EXTLoad(N0.Val) && ISD::isUNINDEXEDLoad(N0.Val) &&
+ !ISD::isNON_EXTLoad(N0.getNode()) && ISD::isUNINDEXEDLoad(N0.getNode()) &&
N0.hasOneUse()) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
MVT EVT = LN0->getMemoryVT();
LN0->isVolatile(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
- CombineTo(N0.Val, DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
+ CombineTo(N0.getNode(),
+ DAG.getNode(ISD::TRUNCATE, N0.getValueType(), ExtLoad),
ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
SimplifySelectCC(N0.getOperand(0), N0.getOperand(1),
DAG.getConstant(1, VT), DAG.getConstant(0, VT),
cast<CondCodeSDNode>(N0.getOperand(2))->get(), true);
- if (SCC.Val)
+ if (SCC.getNode())
return SCC;
}
break;
case ISD::SRL:
// Only look at single-use SRLs.
- if (!V.Val->hasOneUse())
+ if (!V.getNode()->hasOneUse())
break;
if (ConstantSDNode *RHSC = dyn_cast<ConstantSDNode>(V.getOperand(1))) {
// See if we can recursively simplify the LHS.
- unsigned Amt = RHSC->getValue();
+ unsigned Amt = RHSC->getZExtValue();
APInt NewMask = Mask << Amt;
SDValue SimplifyLHS = GetDemandedBits(V.getOperand(0), NewMask);
- if (SimplifyLHS.Val) {
+ if (SimplifyLHS.getNode()) {
return DAG.getNode(ISD::SRL, V.getValueType(),
SimplifyLHS, V.getOperand(1));
}
if (Opc == ISD::SIGN_EXTEND_INREG) {
ExtType = ISD::SEXTLOAD;
EVT = cast<VTSDNode>(N->getOperand(1))->getVT();
- if (AfterLegalize && !TLI.isLoadXLegal(ISD::SEXTLOAD, EVT))
+ if (AfterLegalize && !TLI.isLoadExtLegal(ISD::SEXTLOAD, EVT))
return SDValue();
}
bool CombineSRL = false;
if (N0.getOpcode() == ISD::SRL && N0.hasOneUse()) {
if (ConstantSDNode *N01 = dyn_cast<ConstantSDNode>(N0.getOperand(1))) {
- ShAmt = N01->getValue();
+ ShAmt = N01->getZExtValue();
// Is the shift amount a multiple of size of VT?
if ((ShAmt & (EVTBits-1)) == 0) {
N0 = N0.getOperand(0);
unsigned NewAlign = MinAlign(LN0->getAlignment(), PtrOff);
SDValue NewPtr = DAG.getNode(ISD::ADD, PtrType, LN0->getBasePtr(),
DAG.getConstant(PtrOff, PtrType));
- AddToWorkList(NewPtr.Val);
+ AddToWorkList(NewPtr.getNode());
SDValue Load = (ExtType == ISD::NON_EXTLOAD)
? DAG.getLoad(VT, LN0->getChain(), NewPtr,
LN0->getSrcValue(), LN0->getSrcValueOffset() + PtrOff,
WorkListRemover DeadNodes(*this);
DAG.ReplaceAllUsesOfValueWith(N0.getValue(1), Load.getValue(1),
&DeadNodes);
- CombineTo(N->getOperand(0).Val, Load);
+ CombineTo(N->getOperand(0).getNode(), Load);
} else
- CombineTo(N0.Val, Load, Load.getValue(1));
+ CombineTo(N0.getNode(), Load, Load.getValue(1));
if (ShAmt) {
if (Opc == ISD::SIGN_EXTEND_INREG)
return DAG.getNode(Opc, VT, Load, N->getOperand(1));
// fold (sext_in_reg (load x)) -> (smaller sextload x)
// fold (sext_in_reg (srl (load x), c)) -> (smaller sextload (x+c/evtbits))
SDValue NarrowLoad = ReduceLoadWidth(N);
- if (NarrowLoad.Val)
+ if (NarrowLoad.getNode())
return NarrowLoad;
// fold (sext_in_reg (srl X, 24), i8) -> sra X, 24
// We already fold "(sext_in_reg (srl X, 25), i8) -> srl X, 25" above.
if (N0.getOpcode() == ISD::SRL) {
if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(N0.getOperand(1)))
- if (ShAmt->getValue()+EVTBits <= VT.getSizeInBits()) {
+ if (ShAmt->getZExtValue()+EVTBits <= VT.getSizeInBits()) {
// We can turn this into an SRA iff the input to the SRL is already sign
// extended enough.
unsigned InSignBits = DAG.ComputeNumSignBits(N0.getOperand(0));
- if (VT.getSizeInBits()-(ShAmt->getValue()+EVTBits) < InSignBits)
+ if (VT.getSizeInBits()-(ShAmt->getZExtValue()+EVTBits) < InSignBits)
return DAG.getNode(ISD::SRA, VT, N0.getOperand(0), N0.getOperand(1));
}
}
// fold (sext_inreg (extload x)) -> (sextload x)
- if (ISD::isEXTLoad(N0.Val) &&
- ISD::isUNINDEXEDLoad(N0.Val) &&
+ if (ISD::isEXTLoad(N0.getNode()) &&
+ ISD::isUNINDEXEDLoad(N0.getNode()) &&
EVT == cast<LoadSDNode>(N0)->getMemoryVT() &&
((!AfterLegalize && !cast<LoadSDNode>(N0)->isVolatile()) ||
- TLI.isLoadXLegal(ISD::SEXTLOAD, EVT))) {
+ TLI.isLoadExtLegal(ISD::SEXTLOAD, EVT))) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
SDValue ExtLoad = DAG.getExtLoad(ISD::SEXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->isVolatile(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
- CombineTo(N0.Val, ExtLoad, ExtLoad.getValue(1));
+ CombineTo(N0.getNode(), ExtLoad, ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
// fold (sext_inreg (zextload x)) -> (sextload x) iff load has one use
- if (ISD::isZEXTLoad(N0.Val) && ISD::isUNINDEXEDLoad(N0.Val) &&
+ if (ISD::isZEXTLoad(N0.getNode()) && ISD::isUNINDEXEDLoad(N0.getNode()) &&
N0.hasOneUse() &&
EVT == cast<LoadSDNode>(N0)->getMemoryVT() &&
((!AfterLegalize && !cast<LoadSDNode>(N0)->isVolatile()) ||
- TLI.isLoadXLegal(ISD::SEXTLOAD, EVT))) {
+ TLI.isLoadExtLegal(ISD::SEXTLOAD, EVT))) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
SDValue ExtLoad = DAG.getExtLoad(ISD::SEXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->isVolatile(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
- CombineTo(N0.Val, ExtLoad, ExtLoad.getValue(1));
+ CombineTo(N0.getNode(), ExtLoad, ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
return SDValue();
SDValue Shorter =
GetDemandedBits(N0, APInt::getLowBitsSet(N0.getValueSizeInBits(),
VT.getSizeInBits()));
- if (Shorter.Val)
+ if (Shorter.getNode())
return DAG.getNode(ISD::TRUNCATE, VT, Shorter);
// fold (truncate (load x)) -> (smaller load x)
static SDNode *getBuildPairElt(SDNode *N, unsigned i) {
SDValue Elt = N->getOperand(i);
if (Elt.getOpcode() != ISD::MERGE_VALUES)
- return Elt.Val;
- return Elt.getOperand(Elt.getResNo()).Val;
+ return Elt.getNode();
+ return Elt.getOperand(Elt.getResNo()).getNode();
}
/// CombineConsecutiveLoads - build_pair (load, load) -> load
TLI.isConsecutiveLoad(LD2, LD1, LD1VT.getSizeInBits()/8, 1, MFI)) {
LoadSDNode *LD = cast<LoadSDNode>(LD1);
unsigned Align = LD->getAlignment();
- unsigned NewAlign = TLI.getTargetMachine().getTargetData()->
+ unsigned NewAlign = TLI.getTargetData()->
getABITypeAlignment(VT.getTypeForMVT());
if (NewAlign <= Align &&
(!AfterLegalize || TLI.isOperationLegal(ISD::LOAD, VT)))
// on the bitconvert.
// First check to see if this is all constant.
if (!AfterLegalize &&
- N0.getOpcode() == ISD::BUILD_VECTOR && N0.Val->hasOneUse() &&
+ N0.getOpcode() == ISD::BUILD_VECTOR && N0.getNode()->hasOneUse() &&
VT.isVector()) {
bool isSimple = true;
for (unsigned i = 0, e = N0.getNumOperands(); i != e; ++i)
assert(!DestEltVT.isVector() &&
"Element type of vector ValueType must not be vector!");
if (isSimple) {
- return ConstantFoldBIT_CONVERTofBUILD_VECTOR(N0.Val, DestEltVT);
+ return ConstantFoldBIT_CONVERTofBUILD_VECTOR(N0.getNode(), DestEltVT);
}
}
- // If the input is a constant, let getNode() fold it.
+ // If the input is a constant, let getNode fold it.
if (isa<ConstantSDNode>(N0) || isa<ConstantFPSDNode>(N0)) {
SDValue Res = DAG.getNode(ISD::BIT_CONVERT, VT, N0);
- if (Res.Val != N) return Res;
+ if (Res.getNode() != N) return Res;
}
if (N0.getOpcode() == ISD::BIT_CONVERT) // conv(conv(x,t1),t2) -> conv(x,t2)
// fold (conv (load x)) -> (load (conv*)x)
// If the resultant load doesn't need a higher alignment than the original!
- if (ISD::isNormalLoad(N0.Val) && N0.hasOneUse() &&
+ if (ISD::isNormalLoad(N0.getNode()) && N0.hasOneUse() &&
// Do not change the width of a volatile load.
!cast<LoadSDNode>(N0)->isVolatile() &&
(!AfterLegalize || TLI.isOperationLegal(ISD::LOAD, VT))) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
- unsigned Align = TLI.getTargetMachine().getTargetData()->
+ unsigned Align = TLI.getTargetData()->
getABITypeAlignment(VT.getTypeForMVT());
unsigned OrigAlign = LN0->getAlignment();
if (Align <= OrigAlign) {
LN0->getSrcValue(), LN0->getSrcValueOffset(),
LN0->isVolatile(), OrigAlign);
AddToWorkList(N);
- CombineTo(N0.Val, DAG.getNode(ISD::BIT_CONVERT, N0.getValueType(), Load),
+ CombineTo(N0.getNode(),
+ DAG.getNode(ISD::BIT_CONVERT, N0.getValueType(), Load),
Load.getValue(1));
return Load;
}
// Fold bitconvert(fabs(x)) -> and(bitconvert(x), ~signbit)
// This often reduces constant pool loads.
if ((N0.getOpcode() == ISD::FNEG || N0.getOpcode() == ISD::FABS) &&
- N0.Val->hasOneUse() && VT.isInteger() && !VT.isVector()) {
+ N0.getNode()->hasOneUse() && VT.isInteger() && !VT.isVector()) {
SDValue NewConv = DAG.getNode(ISD::BIT_CONVERT, VT, N0.getOperand(0));
- AddToWorkList(NewConv.Val);
+ AddToWorkList(NewConv.getNode());
APInt SignBit = APInt::getSignBit(VT.getSizeInBits());
if (N0.getOpcode() == ISD::FNEG)
// Fold bitconvert(fcopysign(cst, x)) -> bitconvert(x)&sign | cst&~sign'
// Note that we don't handle copysign(x,cst) because this can always be folded
// to an fneg or fabs.
- if (N0.getOpcode() == ISD::FCOPYSIGN && N0.Val->hasOneUse() &&
+ if (N0.getOpcode() == ISD::FCOPYSIGN && N0.getNode()->hasOneUse() &&
isa<ConstantFPSDNode>(N0.getOperand(0)) &&
VT.isInteger() && !VT.isVector()) {
unsigned OrigXWidth = N0.getOperand(1).getValueType().getSizeInBits();
SDValue X = DAG.getNode(ISD::BIT_CONVERT,
MVT::getIntegerVT(OrigXWidth),
N0.getOperand(1));
- AddToWorkList(X.Val);
+ AddToWorkList(X.getNode());
// If X has a different width than the result/lhs, sext it or truncate it.
unsigned VTWidth = VT.getSizeInBits();
if (OrigXWidth < VTWidth) {
X = DAG.getNode(ISD::SIGN_EXTEND, VT, X);
- AddToWorkList(X.Val);
+ AddToWorkList(X.getNode());
} else if (OrigXWidth > VTWidth) {
// To get the sign bit in the right place, we have to shift it right
// before truncating.
X = DAG.getNode(ISD::SRL, X.getValueType(), X,
DAG.getConstant(OrigXWidth-VTWidth, X.getValueType()));
- AddToWorkList(X.Val);
+ AddToWorkList(X.getNode());
X = DAG.getNode(ISD::TRUNCATE, VT, X);
- AddToWorkList(X.Val);
+ AddToWorkList(X.getNode());
}
APInt SignBit = APInt::getSignBit(VT.getSizeInBits());
X = DAG.getNode(ISD::AND, VT, X, DAG.getConstant(SignBit, VT));
- AddToWorkList(X.Val);
+ AddToWorkList(X.getNode());
SDValue Cst = DAG.getNode(ISD::BIT_CONVERT, VT, N0.getOperand(0));
Cst = DAG.getNode(ISD::AND, VT, Cst, DAG.getConstant(~SignBit, VT));
- AddToWorkList(Cst.Val);
+ AddToWorkList(Cst.getNode());
return DAG.getNode(ISD::OR, VT, X, Cst);
}
// bitconvert(build_pair(ld, ld)) -> ld iff load locations are consecutive.
if (N0.getOpcode() == ISD::BUILD_PAIR) {
- SDValue CombineLD = CombineConsecutiveLoads(N0.Val, VT);
- if (CombineLD.Val)
+ SDValue CombineLD = CombineConsecutiveLoads(N0.getNode(), VT);
+ if (CombineLD.getNode())
return CombineLD;
}
SmallVector<SDValue, 8> Ops;
for (unsigned i = 0, e = BV->getNumOperands(); i != e; ++i) {
Ops.push_back(DAG.getNode(ISD::BIT_CONVERT, DstEltVT, BV->getOperand(i)));
- AddToWorkList(Ops.back().Val);
+ AddToWorkList(Ops.back().getNode());
}
MVT VT = MVT::getVectorVT(DstEltVT,
BV->getValueType(0).getVectorNumElements());
// same sizes.
assert((SrcEltVT == MVT::f32 || SrcEltVT == MVT::f64) && "Unknown FP VT!");
MVT IntVT = MVT::getIntegerVT(SrcEltVT.getSizeInBits());
- BV = ConstantFoldBIT_CONVERTofBUILD_VECTOR(BV, IntVT).Val;
+ BV = ConstantFoldBIT_CONVERTofBUILD_VECTOR(BV, IntVT).getNode();
SrcEltVT = IntVT;
}
if (DstEltVT.isFloatingPoint()) {
assert((DstEltVT == MVT::f32 || DstEltVT == MVT::f64) && "Unknown FP VT!");
MVT TmpVT = MVT::getIntegerVT(DstEltVT.getSizeInBits());
- SDNode *Tmp = ConstantFoldBIT_CONVERTofBUILD_VECTOR(BV, TmpVT).Val;
+ SDNode *Tmp = ConstantFoldBIT_CONVERTofBUILD_VECTOR(BV, TmpVT).getNode();
// Next, convert to FP elements of the same size.
return ConstantFoldBIT_CONVERTofBUILD_VECTOR(Tmp, DstEltVT);
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (fadd c1, c2) -> c1+c2
// If allowed, fold (fadd (fadd x, c1), c2) -> (fadd x, (fadd c1, c2))
if (UnsafeFPMath && N1CFP && N0.getOpcode() == ISD::FADD &&
- N0.Val->hasOneUse() && isa<ConstantFPSDNode>(N0.getOperand(1)))
+ N0.getNode()->hasOneUse() && isa<ConstantFPSDNode>(N0.getOperand(1)))
return DAG.getNode(ISD::FADD, VT, N0.getOperand(0),
DAG.getNode(ISD::FADD, VT, N0.getOperand(1), N1));
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (fsub c1, c2) -> c1-c2
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (fmul c1, c2) -> c1*c2
// If allowed, fold (fmul (fmul x, c1), c2) -> (fmul x, (fmul c1, c2))
if (UnsafeFPMath && N1CFP && N0.getOpcode() == ISD::FMUL &&
- N0.Val->hasOneUse() && isa<ConstantFPSDNode>(N0.getOperand(1)))
+ N0.getNode()->hasOneUse() && isa<ConstantFPSDNode>(N0.getOperand(1)))
return DAG.getNode(ISD::FMUL, VT, N0.getOperand(0),
DAG.getNode(ISD::FMUL, VT, N0.getOperand(1), N1));
// fold vector ops
if (VT.isVector()) {
SDValue FoldedVOp = SimplifyVBinOp(N);
- if (FoldedVOp.Val) return FoldedVOp;
+ if (FoldedVOp.getNode()) return FoldedVOp;
}
// fold (fdiv c1, c2) -> c1/c2
if (N0.getOpcode() == ISD::FP_ROUND) {
// This is a value preserving truncation if both round's are.
bool IsTrunc = N->getConstantOperandVal(1) == 1 &&
- N0.Val->getConstantOperandVal(1) == 1;
+ N0.getNode()->getConstantOperandVal(1) == 1;
return DAG.getNode(ISD::FP_ROUND, VT, N0.getOperand(0),
DAG.getIntPtrConstant(IsTrunc));
}
// fold (fp_round (copysign X, Y)) -> (copysign (fp_round X), Y)
- if (N0.getOpcode() == ISD::FCOPYSIGN && N0.Val->hasOneUse()) {
+ if (N0.getOpcode() == ISD::FCOPYSIGN && N0.getNode()->hasOneUse()) {
SDValue Tmp = DAG.getNode(ISD::FP_ROUND, VT, N0.getOperand(0), N1);
- AddToWorkList(Tmp.Val);
+ AddToWorkList(Tmp.getNode());
return DAG.getNode(ISD::FCOPYSIGN, VT, Tmp, N0.getOperand(1));
}
// fold (fp_round_inreg c1fp) -> c1fp
if (N0CFP) {
- SDValue Round = DAG.getConstantFP(N0CFP->getValueAPF(), EVT);
+ SDValue Round = DAG.getConstantFP(*N0CFP->getConstantFPValue(), EVT);
return DAG.getNode(ISD::FP_EXTEND, VT, Round);
}
return SDValue();
// Turn fp_extend(fp_round(X, 1)) -> x since the fp_round doesn't affect the
// value of X.
- if (N0.getOpcode() == ISD::FP_ROUND && N0.Val->getConstantOperandVal(1) == 1){
+ if (N0.getOpcode() == ISD::FP_ROUND
+ && N0.getNode()->getConstantOperandVal(1) == 1) {
SDValue In = N0.getOperand(0);
if (In.getValueType() == VT) return In;
if (VT.bitsLT(In.getValueType()))
}
// fold (fpext (load x)) -> (fpext (fptrunc (extload x)))
- if (ISD::isNON_EXTLoad(N0.Val) && N0.hasOneUse() &&
+ if (ISD::isNON_EXTLoad(N0.getNode()) && N0.hasOneUse() &&
((!AfterLegalize && !cast<LoadSDNode>(N0)->isVolatile()) ||
- TLI.isLoadXLegal(ISD::EXTLOAD, N0.getValueType()))) {
+ TLI.isLoadExtLegal(ISD::EXTLOAD, N0.getValueType()))) {
LoadSDNode *LN0 = cast<LoadSDNode>(N0);
SDValue ExtLoad = DAG.getExtLoad(ISD::EXTLOAD, VT, LN0->getChain(),
LN0->getBasePtr(), LN0->getSrcValue(),
LN0->isVolatile(),
LN0->getAlignment());
CombineTo(N, ExtLoad);
- CombineTo(N0.Val, DAG.getNode(ISD::FP_ROUND, N0.getValueType(), ExtLoad,
- DAG.getIntPtrConstant(1)),
+ CombineTo(N0.getNode(), DAG.getNode(ISD::FP_ROUND, N0.getValueType(),
+ ExtLoad, DAG.getIntPtrConstant(1)),
ExtLoad.getValue(1));
return SDValue(N, 0); // Return N so it doesn't get rechecked!
}
// Transform fneg(bitconvert(x)) -> bitconvert(x^sign) to avoid loading
// constant pool values.
- if (N0.getOpcode() == ISD::BIT_CONVERT && N0.Val->hasOneUse() &&
+ if (N0.getOpcode() == ISD::BIT_CONVERT && N0.getNode()->hasOneUse() &&
N0.getOperand(0).getValueType().isInteger() &&
!N0.getOperand(0).getValueType().isVector()) {
SDValue Int = N0.getOperand(0);
if (IntVT.isInteger() && !IntVT.isVector()) {
Int = DAG.getNode(ISD::XOR, IntVT, Int,
DAG.getConstant(IntVT.getIntegerVTSignBit(), IntVT));
- AddToWorkList(Int.Val);
+ AddToWorkList(Int.getNode());
return DAG.getNode(ISD::BIT_CONVERT, N->getValueType(0), Int);
}
}
// Transform fabs(bitconvert(x)) -> bitconvert(x&~sign) to avoid loading
// constant pool values.
- if (N0.getOpcode() == ISD::BIT_CONVERT && N0.Val->hasOneUse() &&
+ if (N0.getOpcode() == ISD::BIT_CONVERT && N0.getNode()->hasOneUse() &&
N0.getOperand(0).getValueType().isInteger() &&
!N0.getOperand(0).getValueType().isVector()) {
SDValue Int = N0.getOperand(0);
if (IntVT.isInteger() && !IntVT.isVector()) {
Int = DAG.getNode(ISD::AND, IntVT, Int,
DAG.getConstant(~IntVT.getIntegerVTSignBit(), IntVT));
- AddToWorkList(Int.Val);
+ AddToWorkList(Int.getNode());
return DAG.getNode(ISD::BIT_CONVERT, N->getValueType(0), Int);
}
}
// Use SimplifySetCC to simplify SETCC's.
SDValue Simp = SimplifySetCC(MVT::i1, CondLHS, CondRHS, CC->get(), false);
- if (Simp.Val) AddToWorkList(Simp.Val);
+ if (Simp.getNode()) AddToWorkList(Simp.getNode());
- ConstantSDNode *SCCC = dyn_cast_or_null<ConstantSDNode>(Simp.Val);
+ ConstantSDNode *SCCC = dyn_cast_or_null<ConstantSDNode>(Simp.getNode());
// fold br_cc true, dest -> br dest (unconditional branch)
if (SCCC && !SCCC->isNullValue())
return N->getOperand(0);
// fold to a simpler setcc
- if (Simp.Val && Simp.getOpcode() == ISD::SETCC)
+ if (Simp.getNode() && Simp.getOpcode() == ISD::SETCC)
return DAG.getNode(ISD::BR_CC, MVT::Other, N->getOperand(0),
Simp.getOperand(2), Simp.getOperand(0),
Simp.getOperand(1), N->getOperand(4));
// If the pointer is not an add/sub, or if it doesn't have multiple uses, bail
// out. There is no reason to make this a preinc/predec.
if ((Ptr.getOpcode() != ISD::ADD && Ptr.getOpcode() != ISD::SUB) ||
- Ptr.Val->hasOneUse())
+ Ptr.getNode()->hasOneUse())
return false;
// Ask the target to do addressing mode selection.
// Check #2.
if (!isLoad) {
SDValue Val = cast<StoreSDNode>(N)->getValue();
- if (Val == BasePtr || BasePtr.Val->isPredecessorOf(Val.Val))
+ if (Val == BasePtr || BasePtr.getNode()->isPredecessorOf(Val.getNode()))
return false;
}
// Now check for #3 and #4.
bool RealUse = false;
- for (SDNode::use_iterator I = Ptr.Val->use_begin(),
- E = Ptr.Val->use_end(); I != E; ++I) {
+ for (SDNode::use_iterator I = Ptr.getNode()->use_begin(),
+ E = Ptr.getNode()->use_end(); I != E; ++I) {
SDNode *Use = *I;
if (Use == N)
continue;
++PreIndexedNodes;
++NodesCombined;
DOUT << "\nReplacing.4 "; DEBUG(N->dump(&DAG));
- DOUT << "\nWith: "; DEBUG(Result.Val->dump(&DAG));
+ DOUT << "\nWith: "; DEBUG(Result.getNode()->dump(&DAG));
DOUT << '\n';
WorkListRemover DeadNodes(*this);
if (isLoad) {
// Replace the uses of Ptr with uses of the updated base value.
DAG.ReplaceAllUsesOfValueWith(Ptr, Result.getValue(isLoad ? 1 : 0),
&DeadNodes);
- removeFromWorkList(Ptr.Val);
- DAG.DeleteNode(Ptr.Val);
+ removeFromWorkList(Ptr.getNode());
+ DAG.DeleteNode(Ptr.getNode());
return true;
}
} else
return false;
- if (Ptr.Val->hasOneUse())
+ if (Ptr.getNode()->hasOneUse())
return false;
- for (SDNode::use_iterator I = Ptr.Val->use_begin(),
- E = Ptr.Val->use_end(); I != E; ++I) {
+ for (SDNode::use_iterator I = Ptr.getNode()->use_begin(),
+ E = Ptr.getNode()->use_end(); I != E; ++I) {
SDNode *Op = *I;
if (Op == N ||
(Op->getOpcode() != ISD::ADD && Op->getOpcode() != ISD::SUB))
// Check for #1.
bool TryNext = false;
- for (SDNode::use_iterator II = BasePtr.Val->use_begin(),
- EE = BasePtr.Val->use_end(); II != EE; ++II) {
+ for (SDNode::use_iterator II = BasePtr.getNode()->use_begin(),
+ EE = BasePtr.getNode()->use_end(); II != EE; ++II) {
SDNode *Use = *II;
- if (Use == Ptr.Val)
+ if (Use == Ptr.getNode())
continue;
// If all the uses are load / store addresses, then don't do the
EEE = Use->use_end(); III != EEE; ++III) {
SDNode *UseUse = *III;
if (!((UseUse->getOpcode() == ISD::LOAD &&
- cast<LoadSDNode>(UseUse)->getBasePtr().Val == Use) ||
+ cast<LoadSDNode>(UseUse)->getBasePtr().getNode() == Use) ||
(UseUse->getOpcode() == ISD::STORE &&
- cast<StoreSDNode>(UseUse)->getBasePtr().Val == Use)))
+ cast<StoreSDNode>(UseUse)->getBasePtr().getNode() == Use)))
RealUse = true;
}
++PostIndexedNodes;
++NodesCombined;
DOUT << "\nReplacing.5 "; DEBUG(N->dump(&DAG));
- DOUT << "\nWith: "; DEBUG(Result.Val->dump(&DAG));
+ DOUT << "\nWith: "; DEBUG(Result.getNode()->dump(&DAG));
DOUT << '\n';
WorkListRemover DeadNodes(*this);
if (isLoad) {
// Now we replace use of chain2 with chain1. This makes the second load
// isomorphic to the one we are deleting, and thus makes this load live.
DOUT << "\nReplacing.6 "; DEBUG(N->dump(&DAG));
- DOUT << "\nWith chain: "; DEBUG(Chain.Val->dump(&DAG));
+ DOUT << "\nWith chain: "; DEBUG(Chain.getNode()->dump(&DAG));
DOUT << "\n";
WorkListRemover DeadNodes(*this);
DAG.ReplaceAllUsesOfValueWith(SDValue(N, 1), Chain, &DeadNodes);
if (N->hasNUsesOfValue(0, 0) && N->hasNUsesOfValue(0, 1)) {
SDValue Undef = DAG.getNode(ISD::UNDEF, N->getValueType(0));
DOUT << "\nReplacing.6 "; DEBUG(N->dump(&DAG));
- DOUT << "\nWith: "; DEBUG(Undef.Val->dump(&DAG));
+ DOUT << "\nWith: "; DEBUG(Undef.getNode()->dump(&DAG));
DOUT << " and 2 other values\n";
WorkListRemover DeadNodes(*this);
DAG.ReplaceAllUsesOfValueWith(SDValue(N, 0), Undef, &DeadNodes);
// TODO: Handle TRUNCSTORE/LOADEXT
if (LD->getExtensionType() == ISD::NON_EXTLOAD &&
!LD->isVolatile()) {
- if (ISD::isNON_TRUNCStore(Chain.Val)) {
+ if (ISD::isNON_TRUNCStore(Chain.getNode())) {
StoreSDNode *PrevST = cast<StoreSDNode>(Chain);
if (PrevST->getBasePtr() == Ptr &&
PrevST->getValue().getValueType() == N->getValueType(0))
ST->isUnindexed()) {
unsigned Align = ST->getAlignment();
MVT SVT = Value.getOperand(0).getValueType();
- unsigned OrigAlign = TLI.getTargetMachine().getTargetData()->
+ unsigned OrigAlign = TLI.getTargetData()->
getABITypeAlignment(SVT.getTypeForMVT());
if (Align <= OrigAlign &&
((!AfterLegalize && !ST->isVolatile()) ||
if ((!AfterLegalize && !ST->isVolatile()) ||
TLI.isOperationLegal(ISD::STORE, MVT::i32)) {
Tmp = DAG.getConstant((uint32_t)CFP->getValueAPF().
- convertToAPInt().getZExtValue(), MVT::i32);
+ bitcastToAPInt().getZExtValue(), MVT::i32);
return DAG.getStore(Chain, Tmp, Ptr, ST->getSrcValue(),
ST->getSrcValueOffset(), ST->isVolatile(),
ST->getAlignment());
case MVT::f64:
if ((!AfterLegalize && !ST->isVolatile()) ||
TLI.isOperationLegal(ISD::STORE, MVT::i64)) {
- Tmp = DAG.getConstant(CFP->getValueAPF().convertToAPInt().
+ Tmp = DAG.getConstant(CFP->getValueAPF().bitcastToAPInt().
getZExtValue(), MVT::i64);
return DAG.getStore(Chain, Tmp, Ptr, ST->getSrcValue(),
ST->getSrcValueOffset(), ST->isVolatile(),
// Many FP stores are not made apparent until after legalize, e.g. for
// argument passing. Since this is so common, custom legalize the
// 64-bit integer store into two 32-bit stores.
- uint64_t Val = CFP->getValueAPF().convertToAPInt().getZExtValue();
+ uint64_t Val = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
SDValue Lo = DAG.getConstant(Val & 0xFFFFFFFF, MVT::i32);
SDValue Hi = DAG.getConstant(Val >> 32, MVT::i32);
if (TLI.isBigEndian()) std::swap(Lo, Hi);
GetDemandedBits(Value,
APInt::getLowBitsSet(Value.getValueSizeInBits(),
ST->getMemoryVT().getSizeInBits()));
- AddToWorkList(Value.Val);
- if (Shorter.Val)
+ AddToWorkList(Value.getNode());
+ if (Shorter.getNode())
return DAG.getTruncStore(Chain, Shorter, Ptr, ST->getSrcValue(),
ST->getSrcValueOffset(), ST->getMemoryVT(),
ST->isVolatile(), ST->getAlignment());
// If this is an FP_ROUND or TRUNC followed by a store, fold this into a
// truncating store. We can do this even if this is already a truncstore.
if ((Value.getOpcode() == ISD::FP_ROUND || Value.getOpcode() == ISD::TRUNCATE)
- && Value.Val->hasOneUse() && ST->isUnindexed() &&
+ && Value.getNode()->hasOneUse() && ST->isUnindexed() &&
TLI.isTruncStoreLegal(Value.getOperand(0).getValueType(),
ST->getMemoryVT())) {
return DAG.getTruncStore(Chain, Value.getOperand(0), Ptr, ST->getSrcValue(),
// If the invec is a BUILD_VECTOR and if EltNo is a constant, build a new
// vector with the inserted element.
if (InVec.getOpcode() == ISD::BUILD_VECTOR && isa<ConstantSDNode>(EltNo)) {
- unsigned Elt = cast<ConstantSDNode>(EltNo)->getValue();
- SmallVector<SDValue, 8> Ops(InVec.Val->op_begin(), InVec.Val->op_end());
+ unsigned Elt = cast<ConstantSDNode>(EltNo)->getZExtValue();
+ SmallVector<SDValue, 8> Ops(InVec.getNode()->op_begin(),
+ InVec.getNode()->op_end());
if (Elt < Ops.size())
Ops[Elt] = InVal;
return DAG.getNode(ISD::BUILD_VECTOR, InVec.getValueType(),
SDValue EltNo = N->getOperand(1);
if (isa<ConstantSDNode>(EltNo)) {
- unsigned Elt = cast<ConstantSDNode>(EltNo)->getValue();
+ unsigned Elt = cast<ConstantSDNode>(EltNo)->getZExtValue();
bool NewLoad = false;
MVT VT = InVec.getValueType();
MVT EVT = VT.getVectorElementType();
}
LoadSDNode *LN0 = NULL;
- if (ISD::isNormalLoad(InVec.Val))
+ if (ISD::isNormalLoad(InVec.getNode()))
LN0 = cast<LoadSDNode>(InVec);
else if (InVec.getOpcode() == ISD::SCALAR_TO_VECTOR &&
InVec.getOperand(0).getValueType() == EVT &&
- ISD::isNormalLoad(InVec.getOperand(0).Val)) {
+ ISD::isNormalLoad(InVec.getOperand(0).getNode())) {
LN0 = cast<LoadSDNode>(InVec.getOperand(0));
} else if (InVec.getOpcode() == ISD::VECTOR_SHUFFLE) {
// (vextract (vector_shuffle (load $addr), v2, <1, u, u, u>), 1)
// =>
// (load $addr+1*size)
unsigned Idx = cast<ConstantSDNode>(InVec.getOperand(2).
- getOperand(Elt))->getValue();
+ getOperand(Elt))->getZExtValue();
unsigned NumElems = InVec.getOperand(2).getNumOperands();
InVec = (Idx < NumElems) ? InVec.getOperand(0) : InVec.getOperand(1);
if (InVec.getOpcode() == ISD::BIT_CONVERT)
InVec = InVec.getOperand(0);
- if (ISD::isNormalLoad(InVec.Val)) {
+ if (ISD::isNormalLoad(InVec.getNode())) {
LN0 = cast<LoadSDNode>(InVec);
Elt = (Idx < NumElems) ? Idx : Idx - NumElems;
}
if (NewLoad) {
// Check the resultant load doesn't need a higher alignment than the
// original load.
- unsigned NewAlign = TLI.getTargetMachine().getTargetData()->
+ unsigned NewAlign = TLI.getTargetData()->
getABITypeAlignment(LVT.getTypeForMVT());
if (NewAlign > Align || !TLI.isOperationLegal(ISD::LOAD, LVT))
return SDValue();
if (ExtractedFromVec == VecIn1 || ExtractedFromVec == VecIn2)
continue;
- if (VecIn1.Val == 0) {
+ if (VecIn1.getNode() == 0) {
VecIn1 = ExtractedFromVec;
- } else if (VecIn2.Val == 0) {
+ } else if (VecIn2.getNode() == 0) {
VecIn2 = ExtractedFromVec;
} else {
// Too many inputs.
}
// If everything is good, we can make a shuffle operation.
- if (VecIn1.Val) {
+ if (VecIn1.getNode()) {
SmallVector<SDValue, 8> BuildVecIndices;
for (unsigned i = 0; i != NumInScalars; ++i) {
if (N->getOperand(i).getOpcode() == ISD::UNDEF) {
}
// Otherwise, use InIdx + VecSize
- unsigned Idx = cast<ConstantSDNode>(Extract.getOperand(1))->getValue();
+ unsigned Idx =
+ cast<ConstantSDNode>(Extract.getOperand(1))->getZExtValue();
BuildVecIndices.push_back(DAG.getIntPtrConstant(Idx+NumInScalars));
}
// Return the new VECTOR_SHUFFLE node.
SDValue Ops[5];
Ops[0] = VecIn1;
- if (VecIn2.Val) {
+ if (VecIn2.getNode()) {
Ops[1] = VecIn2;
} else {
// Use an undef build_vector as input for the second operand.
EltType));
Ops[1] = DAG.getNode(ISD::BUILD_VECTOR, VT,
&UnOps[0], UnOps.size());
- AddToWorkList(Ops[1].Val);
+ AddToWorkList(Ops[1].getNode());
}
Ops[2] = DAG.getNode(ISD::BUILD_VECTOR, BuildVecVT,
&BuildVecIndices[0], BuildVecIndices.size());
SDValue ShufMask = N->getOperand(2);
unsigned NumElts = ShufMask.getNumOperands();
+ SDValue N0 = N->getOperand(0);
+ SDValue N1 = N->getOperand(1);
+
+ assert(N0.getValueType().getVectorNumElements() == NumElts &&
+ "Vector shuffle must be normalized in DAG");
+
// If the shuffle mask is an identity operation on the LHS, return the LHS.
bool isIdentity = true;
for (unsigned i = 0; i != NumElts; ++i) {
if (ShufMask.getOperand(i).getOpcode() != ISD::UNDEF &&
- cast<ConstantSDNode>(ShufMask.getOperand(i))->getValue() != i) {
+ cast<ConstantSDNode>(ShufMask.getOperand(i))->getZExtValue() != i) {
isIdentity = false;
break;
}
isIdentity = true;
for (unsigned i = 0; i != NumElts; ++i) {
if (ShufMask.getOperand(i).getOpcode() != ISD::UNDEF &&
- cast<ConstantSDNode>(ShufMask.getOperand(i))->getValue() != i+NumElts) {
+ cast<ConstantSDNode>(ShufMask.getOperand(i))->getZExtValue() !=
+ i+NumElts) {
isIdentity = false;
break;
}
unsigned BaseIdx = 0;
for (unsigned i = 0; i != NumElts; ++i)
if (ShufMask.getOperand(i).getOpcode() != ISD::UNDEF) {
- unsigned Idx = cast<ConstantSDNode>(ShufMask.getOperand(i))->getValue();
+ unsigned Idx=cast<ConstantSDNode>(ShufMask.getOperand(i))->getZExtValue();
int V = (Idx < NumElts) ? 0 : 1;
if (VecNum == -1) {
VecNum = V;
}
}
- SDValue N0 = N->getOperand(0);
- SDValue N1 = N->getOperand(1);
// Normalize unary shuffle so the RHS is undef.
if (isUnary && VecNum == 1)
std::swap(N0, N1);
// If it is a splat, check if the argument vector is a build_vector with
// all scalar elements the same.
if (isSplat) {
- SDNode *V = N0.Val;
+ SDNode *V = N0.getNode();
// If this is a bit convert that changes the element type of the vector but
// not the number of vector elements, look through it. Be careful not to
SDValue ConvInput = V->getOperand(0);
if (ConvInput.getValueType().isVector() &&
ConvInput.getValueType().getVectorNumElements() == NumElts)
- V = ConvInput.Val;
+ V = ConvInput.getNode();
}
if (V->getOpcode() == ISD::BUILD_VECTOR) {
}
}
// Splat of <u, u, u, u>, return <u, u, u, u>
- if (!Base.Val)
+ if (!Base.getNode())
return N0;
for (unsigned i = 0; i != NumElems; ++i) {
if (V->getOperand(i) != Base) {
SmallVector<SDValue, 8> MappedOps;
for (unsigned i = 0; i != NumElts; ++i) {
if (ShufMask.getOperand(i).getOpcode() == ISD::UNDEF ||
- cast<ConstantSDNode>(ShufMask.getOperand(i))->getValue() < NumElts) {
+ cast<ConstantSDNode>(ShufMask.getOperand(i))->getZExtValue() <
+ NumElts) {
MappedOps.push_back(ShufMask.getOperand(i));
} else {
unsigned NewIdx =
- cast<ConstantSDNode>(ShufMask.getOperand(i))->getValue() - NumElts;
+ cast<ConstantSDNode>(ShufMask.getOperand(i))->getZExtValue() -
+ NumElts;
MappedOps.push_back(DAG.getConstant(NewIdx,
ShufMask.getOperand(i).getValueType()));
}
}
ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMask.getValueType(),
&MappedOps[0], MappedOps.size());
- AddToWorkList(ShufMask.Val);
+ AddToWorkList(ShufMask.getNode());
return DAG.getNode(ISD::VECTOR_SHUFFLE, N->getValueType(0),
N0,
DAG.getNode(ISD::UNDEF, N->getValueType(0)),
std::vector<SDValue> IdxOps;
unsigned NumOps = RHS.getNumOperands();
unsigned NumElts = NumOps;
- MVT EVT = RHS.getValueType().getVectorElementType();
for (unsigned i = 0; i != NumElts; ++i) {
SDValue Elt = RHS.getOperand(i);
if (!isa<ConstantSDNode>(Elt))
return SDValue();
else if (cast<ConstantSDNode>(Elt)->isAllOnesValue())
- IdxOps.push_back(DAG.getConstant(i, EVT));
+ IdxOps.push_back(DAG.getIntPtrConstant(i));
else if (cast<ConstantSDNode>(Elt)->isNullValue())
- IdxOps.push_back(DAG.getConstant(NumElts, EVT));
+ IdxOps.push_back(DAG.getIntPtrConstant(NumElts));
else
return SDValue();
}
// Let's see if the target supports this vector_shuffle.
- if (!TLI.isVectorClearMaskLegal(IdxOps, EVT, DAG))
+ if (!TLI.isVectorClearMaskLegal(IdxOps, TLI.getPointerTy(), DAG))
return SDValue();
// Return the new VECTOR_SHUFFLE node.
+ MVT EVT = RHS.getValueType().getVectorElementType();
MVT VT = MVT::getVectorVT(EVT, NumElts);
+ MVT MaskVT = MVT::getVectorVT(TLI.getPointerTy(), NumElts);
std::vector<SDValue> Ops;
LHS = DAG.getNode(ISD::BIT_CONVERT, VT, LHS);
Ops.push_back(LHS);
- AddToWorkList(LHS.Val);
+ AddToWorkList(LHS.getNode());
std::vector<SDValue> ZeroOps(NumElts, DAG.getConstant(0, EVT));
Ops.push_back(DAG.getNode(ISD::BUILD_VECTOR, VT,
&ZeroOps[0], ZeroOps.size()));
- Ops.push_back(DAG.getNode(ISD::BUILD_VECTOR, VT,
+ Ops.push_back(DAG.getNode(ISD::BUILD_VECTOR, MaskVT,
&IdxOps[0], IdxOps.size()));
SDValue Result = DAG.getNode(ISD::VECTOR_SHUFFLE, VT,
&Ops[0], Ops.size());
SDValue LHS = N->getOperand(0);
SDValue RHS = N->getOperand(1);
SDValue Shuffle = XformToShuffleWithZero(N);
- if (Shuffle.Val) return Shuffle;
+ if (Shuffle.getNode()) return Shuffle;
// If the LHS and RHS are BUILD_VECTOR nodes, see if we can constant fold
// this operation.
if (N->getOpcode() == ISD::SDIV || N->getOpcode() == ISD::UDIV ||
N->getOpcode() == ISD::FDIV) {
if ((RHSOp.getOpcode() == ISD::Constant &&
- cast<ConstantSDNode>(RHSOp.Val)->isNullValue()) ||
+ cast<ConstantSDNode>(RHSOp.getNode())->isNullValue()) ||
(RHSOp.getOpcode() == ISD::ConstantFP &&
- cast<ConstantFPSDNode>(RHSOp.Val)->getValueAPF().isZero()))
+ cast<ConstantFPSDNode>(RHSOp.getNode())->getValueAPF().isZero()))
break;
}
Ops.push_back(DAG.getNode(N->getOpcode(), EltType, LHSOp, RHSOp));
- AddToWorkList(Ops.back().Val);
+ AddToWorkList(Ops.back().getNode());
assert((Ops.back().getOpcode() == ISD::UNDEF ||
Ops.back().getOpcode() == ISD::Constant ||
Ops.back().getOpcode() == ISD::ConstantFP) &&
// If we got a simplified select_cc node back from SimplifySelectCC, then
// break it down into a new SETCC node, and a new SELECT node, and then return
// the SELECT node, since we were called with a SELECT node.
- if (SCC.Val) {
+ if (SCC.getNode()) {
// Check to see if we got a select_cc back (to turn into setcc/select).
// Otherwise, just return whatever node we got back, like fabs.
if (SCC.getOpcode() == ISD::SELECT_CC) {
SDValue SETCC = DAG.getNode(ISD::SETCC, N0.getValueType(),
SCC.getOperand(0), SCC.getOperand(1),
SCC.getOperand(4));
- AddToWorkList(SETCC.Val);
+ AddToWorkList(SETCC.getNode());
return DAG.getNode(ISD::SELECT, SCC.getValueType(), SCC.getOperand(2),
SCC.getOperand(3), SETCC);
}
if (TheSelect->getOpcode() == ISD::SELECT) {
// Check that the condition doesn't reach either load. If so, folding
// this will induce a cycle into the DAG.
- if (!LLD->isPredecessorOf(TheSelect->getOperand(0).Val) &&
- !RLD->isPredecessorOf(TheSelect->getOperand(0).Val)) {
+ if (!LLD->isPredecessorOf(TheSelect->getOperand(0).getNode()) &&
+ !RLD->isPredecessorOf(TheSelect->getOperand(0).getNode())) {
Addr = DAG.getNode(ISD::SELECT, LLD->getBasePtr().getValueType(),
TheSelect->getOperand(0), LLD->getBasePtr(),
RLD->getBasePtr());
} else {
// Check that the condition doesn't reach either load. If so, folding
// this will induce a cycle into the DAG.
- if (!LLD->isPredecessorOf(TheSelect->getOperand(0).Val) &&
- !RLD->isPredecessorOf(TheSelect->getOperand(0).Val) &&
- !LLD->isPredecessorOf(TheSelect->getOperand(1).Val) &&
- !RLD->isPredecessorOf(TheSelect->getOperand(1).Val)) {
+ if (!LLD->isPredecessorOf(TheSelect->getOperand(0).getNode()) &&
+ !RLD->isPredecessorOf(TheSelect->getOperand(0).getNode()) &&
+ !LLD->isPredecessorOf(TheSelect->getOperand(1).getNode()) &&
+ !RLD->isPredecessorOf(TheSelect->getOperand(1).getNode())) {
Addr = DAG.getNode(ISD::SELECT_CC, LLD->getBasePtr().getValueType(),
TheSelect->getOperand(0),
TheSelect->getOperand(1),
}
}
- if (Addr.Val) {
+ if (Addr.getNode()) {
SDValue Load;
if (LLD->getExtensionType() == ISD::NON_EXTLOAD)
Load = DAG.getLoad(TheSelect->getValueType(0), LLD->getChain(),
// Users of the old loads now use the new load's chain. We know the
// old-load value is dead now.
- CombineTo(LHS.Val, Load.getValue(0), Load.getValue(1));
- CombineTo(RHS.Val, Load.getValue(0), Load.getValue(1));
+ CombineTo(LHS.getNode(), Load.getValue(0), Load.getValue(1));
+ CombineTo(RHS.getNode(), Load.getValue(0), Load.getValue(1));
return true;
}
}
ISD::CondCode CC, bool NotExtCompare) {
MVT VT = N2.getValueType();
- ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
- ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.Val);
- ConstantSDNode *N3C = dyn_cast<ConstantSDNode>(N3.Val);
+ ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode());
+ ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.getNode());
+ ConstantSDNode *N3C = dyn_cast<ConstantSDNode>(N3.getNode());
// Determine if the condition we're dealing with is constant
SDValue SCC = SimplifySetCC(TLI.getSetCCResultType(N0), N0, N1, CC, false);
- if (SCC.Val) AddToWorkList(SCC.Val);
- ConstantSDNode *SCCC = dyn_cast_or_null<ConstantSDNode>(SCC.Val);
+ if (SCC.getNode()) AddToWorkList(SCC.getNode());
+ ConstantSDNode *SCCC = dyn_cast_or_null<ConstantSDNode>(SCC.getNode());
// fold select_cc true, x, y -> x
if (SCCC && !SCCC->isNullValue())
ShCtV = XType.getSizeInBits()-ShCtV-1;
SDValue ShCt = DAG.getConstant(ShCtV, TLI.getShiftAmountTy());
SDValue Shift = DAG.getNode(ISD::SRL, XType, N0, ShCt);
- AddToWorkList(Shift.Val);
+ AddToWorkList(Shift.getNode());
if (XType.bitsGT(AType)) {
Shift = DAG.getNode(ISD::TRUNCATE, AType, Shift);
- AddToWorkList(Shift.Val);
+ AddToWorkList(Shift.getNode());
}
return DAG.getNode(ISD::AND, AType, Shift, N2);
}
SDValue Shift = DAG.getNode(ISD::SRA, XType, N0,
DAG.getConstant(XType.getSizeInBits()-1,
TLI.getShiftAmountTy()));
- AddToWorkList(Shift.Val);
+ AddToWorkList(Shift.getNode());
if (XType.bitsGT(AType)) {
Shift = DAG.getNode(ISD::TRUNCATE, AType, Shift);
- AddToWorkList(Shift.Val);
+ AddToWorkList(Shift.getNode());
}
return DAG.getNode(ISD::AND, AType, Shift, N2);
}
SCC = DAG.getSetCC(MVT::i1, N0, N1, CC);
Temp = DAG.getNode(ISD::ZERO_EXTEND, N2.getValueType(), SCC);
}
- AddToWorkList(SCC.Val);
- AddToWorkList(Temp.Val);
+ AddToWorkList(SCC.getNode());
+ AddToWorkList(Temp.getNode());
if (N2C->getAPIntValue() == 1)
return Temp;
DAG.getConstant(XType.getSizeInBits()-1,
TLI.getShiftAmountTy()));
SDValue Add = DAG.getNode(ISD::ADD, XType, N0, Shift);
- AddToWorkList(Shift.Val);
- AddToWorkList(Add.Val);
+ AddToWorkList(Shift.getNode());
+ AddToWorkList(Add.getNode());
return DAG.getNode(ISD::XOR, XType, Add, Shift);
}
// Check to see if this is an integer abs. select_cc setgt X, -1, X, -X ->
DAG.getConstant(XType.getSizeInBits()-1,
TLI.getShiftAmountTy()));
SDValue Add = DAG.getNode(ISD::ADD, XType, N0, Shift);
- AddToWorkList(Shift.Val);
- AddToWorkList(Add.Val);
+ AddToWorkList(Shift.getNode());
+ AddToWorkList(Add.getNode());
return DAG.getNode(ISD::XOR, XType, Add, Shift);
}
}
if (Base.getOpcode() == ISD::ADD) {
if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Base.getOperand(1))) {
Base = Base.getOperand(0);
- Offset += C->getValue();
+ Offset += C->getZExtValue();
}
}
Chains.pop_back();
// Don't bother if we've been before.
- if (Visited.find(Chain.Val) != Visited.end()) continue;
- Visited.insert(Chain.Val);
+ if (Visited.find(Chain.getNode()) != Visited.end()) continue;
+ Visited.insert(Chain.getNode());
switch (Chain.getOpcode()) {
case ISD::EntryToken:
int64_t OpSize;
const Value *OpSrcValue;
int OpSrcValueOffset;
- bool IsOpLoad = FindAliasInfo(Chain.Val, OpPtr, OpSize,
+ bool IsOpLoad = FindAliasInfo(Chain.getNode(), OpPtr, OpSize,
OpSrcValue, OpSrcValueOffset);
// If chain is alias then stop here.
// Look further up the chain.
Chains.push_back(Chain.getOperand(0));
// Clean up old chain.
- AddToWorkList(Chain.Val);
+ AddToWorkList(Chain.getNode());
}
break;
}
for (unsigned n = Chain.getNumOperands(); n;)
Chains.push_back(Chain.getOperand(--n));
// Eliminate the token factor if we can.
- AddToWorkList(Chain.Val);
+ AddToWorkList(Chain.getNode());
break;
default:
&Aliases[0], Aliases.size());
// Make sure the old chain gets cleaned up.
- if (NewChain != OldChain) AddToWorkList(OldChain.Val);
+ if (NewChain != OldChain) AddToWorkList(OldChain.getNode());
return NewChain;
}
projects / oota-llvm.git / blobdiff