//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#ifndef LLVM_CODEGEN_SELECTIONDAG_H
#define LLVM_CODEGEN_SELECTIONDAG_H
+#include "llvm/ADT/ilist.h"
+#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/FoldingSet.h"
-#include "llvm/ADT/ilist"
+#include "llvm/ADT/StringMap.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
-#include <list>
+#include <cassert>
#include <vector>
#include <map>
-#include <set>
#include <string>
namespace llvm {
- class AliasAnalysis;
- class TargetLowering;
- class TargetMachine;
- class MachineModuleInfo;
- class MachineFunction;
- class MachineConstantPoolValue;
+
+class AliasAnalysis;
+class TargetLowering;
+class TargetMachine;
+class MachineModuleInfo;
+class MachineFunction;
+class MachineConstantPoolValue;
+class FunctionLoweringInfo;
+
+template<> struct ilist_traits<SDNode> : public ilist_default_traits<SDNode> {
+private:
+ mutable SDNode Sentinel;
+public:
+ ilist_traits() : Sentinel(ISD::DELETED_NODE, SDVTList()) {}
+
+ SDNode *createSentinel() const {
+ return &Sentinel;
+ }
+ static void destroySentinel(SDNode *) {}
+
+ static void deleteNode(SDNode *) {
+ assert(0 && "ilist_traits<SDNode> shouldn't see a deleteNode call!");
+ }
+private:
+ static void createNode(const SDNode &);
+};
+
+enum CombineLevel {
+ Unrestricted, // Combine may create illegal operations and illegal types.
+ NoIllegalTypes, // Combine may create illegal operations but no illegal types.
+ NoIllegalOperations // Combine may only create legal operations and types.
+};
/// SelectionDAG class - This is used to represent a portion of an LLVM function
/// in a low-level Data Dependence DAG representation suitable for instruction
///
class SelectionDAG {
TargetLowering &TLI;
- MachineFunction &MF;
+ MachineFunction *MF;
+ FunctionLoweringInfo &FLI;
MachineModuleInfo *MMI;
- /// Root - The root of the entire DAG. EntryNode - The starting token.
- SDOperand Root, EntryNode;
+ /// EntryNode - The starting token.
+ SDNode EntryNode;
+
+ /// Root - The root of the entire DAG.
+ SDValue Root;
/// AllNodes - A linked list of nodes in the current DAG.
ilist<SDNode> AllNodes;
+ /// NodeAllocatorType - The AllocatorType for allocating SDNodes. We use
+ /// pool allocation with recycling.
+ typedef RecyclingAllocator<BumpPtrAllocator, SDNode, sizeof(LargestSDNode),
+ AlignOf<MostAlignedSDNode>::Alignment>
+ NodeAllocatorType;
+
+ /// NodeAllocator - Pool allocation for nodes.
+ NodeAllocatorType NodeAllocator;
+
/// CSEMap - This structure is used to memoize nodes, automatically performing
/// CSE with existing nodes with a duplicate is requested.
FoldingSet<SDNode> CSEMap;
+ /// OperandAllocator - Pool allocation for machine-opcode SDNode operands.
+ BumpPtrAllocator OperandAllocator;
+
+ /// Allocator - Pool allocation for misc. objects that are created once per
+ /// SelectionDAG.
+ BumpPtrAllocator Allocator;
+
+ /// VerifyNode - Sanity check the given node. Aborts if it is invalid.
+ void VerifyNode(SDNode *N);
+
+ /// setGraphColorHelper - Implementation of setSubgraphColor.
+ /// Return whether we had to truncate the search.
+ ///
+ bool setSubgraphColorHelper(SDNode *N, const char *Color, DenseSet<SDNode *> &visited,
+ int level, bool &printed);
+
public:
- SelectionDAG(TargetLowering &tli, MachineFunction &mf, MachineModuleInfo *mmi)
- : TLI(tli), MF(mf), MMI(mmi) {
- EntryNode = Root = getNode(ISD::EntryToken, MVT::Other);
- }
+ SelectionDAG(TargetLowering &tli, FunctionLoweringInfo &fli);
~SelectionDAG();
- MachineFunction &getMachineFunction() const { return MF; }
+ /// init - Prepare this SelectionDAG to process code in the given
+ /// MachineFunction.
+ ///
+ void init(MachineFunction &mf, MachineModuleInfo *mmi);
+
+ /// clear - Clear state and free memory necessary to make this
+ /// SelectionDAG ready to process a new block.
+ ///
+ void clear();
+
+ MachineFunction &getMachineFunction() const { return *MF; }
const TargetMachine &getTarget() const;
TargetLowering &getTargetLoweringInfo() const { return TLI; }
+ FunctionLoweringInfo &getFunctionLoweringInfo() const { return FLI; }
MachineModuleInfo *getMachineModuleInfo() const { return MMI; }
/// viewGraph - Pop up a GraphViz/gv window with the DAG rendered using 'dot'.
///
+ void viewGraph(const std::string &Title);
void viewGraph();
#ifndef NDEBUG
///
void setGraphColor(const SDNode *N, const char *Color);
+ /// setGraphColor - Convenience for setting subgraph color attribute.
+ ///
+ void setSubgraphColor(SDNode *N, const char *Color);
+
typedef ilist<SDNode>::const_iterator allnodes_const_iterator;
allnodes_const_iterator allnodes_begin() const { return AllNodes.begin(); }
allnodes_const_iterator allnodes_end() const { return AllNodes.end(); }
typedef ilist<SDNode>::iterator allnodes_iterator;
allnodes_iterator allnodes_begin() { return AllNodes.begin(); }
allnodes_iterator allnodes_end() { return AllNodes.end(); }
+ ilist<SDNode>::size_type allnodes_size() const {
+ return AllNodes.size();
+ }
/// getRoot - Return the root tag of the SelectionDAG.
///
- const SDOperand &getRoot() const { return Root; }
+ const SDValue &getRoot() const { return Root; }
/// getEntryNode - Return the token chain corresponding to the entry of the
/// function.
- const SDOperand &getEntryNode() const { return EntryNode; }
+ SDValue getEntryNode() const {
+ return SDValue(const_cast<SDNode *>(&EntryNode), 0);
+ }
/// setRoot - Set the current root tag of the SelectionDAG.
///
- const SDOperand &setRoot(SDOperand N) { return Root = N; }
+ const SDValue &setRoot(SDValue N) {
+ assert((!N.getNode() || N.getValueType() == MVT::Other) &&
+ "DAG root value is not a chain!");
+ return Root = N;
+ }
/// Combine - This iterates over the nodes in the SelectionDAG, folding
- /// certain types of nodes together, or eliminating superfluous nodes. When
- /// the AfterLegalize argument is set to 'true', Combine takes care not to
- /// generate any nodes that will be illegal on the target.
- void Combine(bool AfterLegalize, AliasAnalysis &AA);
-
+ /// certain types of nodes together, or eliminating superfluous nodes. The
+ /// Level argument controls whether Combine is allowed to produce nodes and
+ /// types that are illegal on the target.
+ void Combine(CombineLevel Level, AliasAnalysis &AA, bool Fast);
+
+ /// LegalizeTypes - This transforms the SelectionDAG into a SelectionDAG that
+ /// only uses types natively supported by the target. Returns "true" if it
+ /// made any changes.
+ ///
+ /// Note that this is an involved process that may invalidate pointers into
+ /// the graph.
+ bool LegalizeTypes();
+
/// Legalize - This transforms the SelectionDAG into a SelectionDAG that is
/// compatible with the target instruction selector, as indicated by the
/// TargetLowering object.
/// SelectionDAG.
void RemoveDeadNodes();
- /// RemoveDeadNode - Remove the specified node from the system. If any of its
- /// operands then becomes dead, remove them as well. The vector Deleted is
- /// populated with nodes that are deleted.
- void RemoveDeadNode(SDNode *N, std::vector<SDNode*> &Deleted);
-
/// DeleteNode - Remove the specified node from the system. This node must
/// have no referrers.
void DeleteNode(SDNode *N);
/// getVTList - Return an SDVTList that represents the list of values
/// specified.
- SDVTList getVTList(MVT::ValueType VT);
- SDVTList getVTList(MVT::ValueType VT1, MVT::ValueType VT2);
- SDVTList getVTList(MVT::ValueType VT1, MVT::ValueType VT2,MVT::ValueType VT3);
- SDVTList getVTList(const MVT::ValueType *VTs, unsigned NumVTs);
+ SDVTList getVTList(MVT VT);
+ SDVTList getVTList(MVT VT1, MVT VT2);
+ SDVTList getVTList(MVT VT1, MVT VT2, MVT VT3);
+ SDVTList getVTList(MVT VT1, MVT VT2, MVT VT3, MVT VT4);
+ SDVTList getVTList(const MVT *VTs, unsigned NumVTs);
/// getNodeValueTypes - These are obsolete, use getVTList instead.
- const MVT::ValueType *getNodeValueTypes(MVT::ValueType VT) {
+ const MVT *getNodeValueTypes(MVT VT) {
return getVTList(VT).VTs;
}
- const MVT::ValueType *getNodeValueTypes(MVT::ValueType VT1,
- MVT::ValueType VT2) {
+ const MVT *getNodeValueTypes(MVT VT1, MVT VT2) {
return getVTList(VT1, VT2).VTs;
}
- const MVT::ValueType *getNodeValueTypes(MVT::ValueType VT1,MVT::ValueType VT2,
- MVT::ValueType VT3) {
+ const MVT *getNodeValueTypes(MVT VT1, MVT VT2, MVT VT3) {
return getVTList(VT1, VT2, VT3).VTs;
}
- const MVT::ValueType *getNodeValueTypes(std::vector<MVT::ValueType> &VTList) {
- return getVTList(&VTList[0], VTList.size()).VTs;
+ const MVT *getNodeValueTypes(MVT VT1, MVT VT2, MVT VT3, MVT VT4) {
+ return getVTList(VT1, VT2, VT3, VT4).VTs;
+ }
+ const MVT *getNodeValueTypes(const std::vector<MVT> &vtList) {
+ return getVTList(&vtList[0], (unsigned)vtList.size()).VTs;
}
//===--------------------------------------------------------------------===//
// Node creation methods.
//
- SDOperand getString(const std::string &Val);
- SDOperand getConstant(uint64_t Val, MVT::ValueType VT, bool isTarget = false);
- SDOperand getTargetConstant(uint64_t Val, MVT::ValueType VT) {
+ SDValue getConstant(uint64_t Val, MVT VT, bool isTarget = false);
+ SDValue getConstant(const APInt &Val, MVT VT, bool isTarget = false);
+ SDValue getConstant(const ConstantInt &Val, MVT VT, bool isTarget = false);
+ SDValue getIntPtrConstant(uint64_t Val, bool isTarget = false);
+ SDValue getTargetConstant(uint64_t Val, MVT VT) {
return getConstant(Val, VT, true);
}
- SDOperand getConstantFP(double Val, MVT::ValueType VT, bool isTarget = false);
- SDOperand getTargetConstantFP(double Val, MVT::ValueType VT) {
+ SDValue getTargetConstant(const APInt &Val, MVT VT) {
+ return getConstant(Val, VT, true);
+ }
+ SDValue getTargetConstant(const ConstantInt &Val, MVT VT) {
+ return getConstant(Val, VT, true);
+ }
+ SDValue getConstantFP(double Val, MVT VT, bool isTarget = false);
+ SDValue getConstantFP(const APFloat& Val, MVT VT, bool isTarget = false);
+ SDValue getConstantFP(const ConstantFP &CF, MVT VT, bool isTarget = false);
+ SDValue getTargetConstantFP(double Val, MVT VT) {
+ return getConstantFP(Val, VT, true);
+ }
+ SDValue getTargetConstantFP(const APFloat& Val, MVT VT) {
+ return getConstantFP(Val, VT, true);
+ }
+ SDValue getTargetConstantFP(const ConstantFP &Val, MVT VT) {
return getConstantFP(Val, VT, true);
}
- SDOperand getGlobalAddress(const GlobalValue *GV, MVT::ValueType VT,
- int offset = 0, bool isTargetGA = false);
- SDOperand getTargetGlobalAddress(const GlobalValue *GV, MVT::ValueType VT,
- int offset = 0) {
+ SDValue getGlobalAddress(const GlobalValue *GV, MVT VT,
+ int64_t offset = 0, bool isTargetGA = false);
+ SDValue getTargetGlobalAddress(const GlobalValue *GV, MVT VT,
+ int64_t offset = 0) {
return getGlobalAddress(GV, VT, offset, true);
}
- SDOperand getFrameIndex(int FI, MVT::ValueType VT, bool isTarget = false);
- SDOperand getTargetFrameIndex(int FI, MVT::ValueType VT) {
+ SDValue getFrameIndex(int FI, MVT VT, bool isTarget = false);
+ SDValue getTargetFrameIndex(int FI, MVT VT) {
return getFrameIndex(FI, VT, true);
}
- SDOperand getJumpTable(int JTI, MVT::ValueType VT, bool isTarget = false);
- SDOperand getTargetJumpTable(int JTI, MVT::ValueType VT) {
+ SDValue getJumpTable(int JTI, MVT VT, bool isTarget = false);
+ SDValue getTargetJumpTable(int JTI, MVT VT) {
return getJumpTable(JTI, VT, true);
}
- SDOperand getConstantPool(Constant *C, MVT::ValueType VT,
+ SDValue getConstantPool(Constant *C, MVT VT,
unsigned Align = 0, int Offs = 0, bool isT=false);
- SDOperand getTargetConstantPool(Constant *C, MVT::ValueType VT,
+ SDValue getTargetConstantPool(Constant *C, MVT VT,
unsigned Align = 0, int Offset = 0) {
return getConstantPool(C, VT, Align, Offset, true);
}
- SDOperand getConstantPool(MachineConstantPoolValue *C, MVT::ValueType VT,
+ SDValue getConstantPool(MachineConstantPoolValue *C, MVT VT,
unsigned Align = 0, int Offs = 0, bool isT=false);
- SDOperand getTargetConstantPool(MachineConstantPoolValue *C,
- MVT::ValueType VT, unsigned Align = 0,
+ SDValue getTargetConstantPool(MachineConstantPoolValue *C,
+ MVT VT, unsigned Align = 0,
int Offset = 0) {
return getConstantPool(C, VT, Align, Offset, true);
}
- SDOperand getBasicBlock(MachineBasicBlock *MBB);
- SDOperand getExternalSymbol(const char *Sym, MVT::ValueType VT);
- SDOperand getTargetExternalSymbol(const char *Sym, MVT::ValueType VT);
- SDOperand getValueType(MVT::ValueType);
- SDOperand getRegister(unsigned Reg, MVT::ValueType VT);
-
- SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N) {
+ SDValue getBasicBlock(MachineBasicBlock *MBB);
+ SDValue getExternalSymbol(const char *Sym, MVT VT);
+ SDValue getTargetExternalSymbol(const char *Sym, MVT VT);
+ SDValue getArgFlags(ISD::ArgFlagsTy Flags);
+ SDValue getValueType(MVT);
+ SDValue getRegister(unsigned Reg, MVT VT);
+ SDValue getDbgStopPoint(SDValue Root, unsigned Line, unsigned Col,
+ const CompileUnitDesc *CU);
+ SDValue getLabel(unsigned Opcode, SDValue Root, unsigned LabelID);
+
+ SDValue getCopyToReg(SDValue Chain, unsigned Reg, SDValue N) {
return getNode(ISD::CopyToReg, MVT::Other, Chain,
getRegister(Reg, N.getValueType()), N);
}
// This version of the getCopyToReg method takes an extra operand, which
// indicates that there is potentially an incoming flag value (if Flag is not
// null) and that there should be a flag result.
- SDOperand getCopyToReg(SDOperand Chain, unsigned Reg, SDOperand N,
- SDOperand Flag) {
- const MVT::ValueType *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
- SDOperand Ops[] = { Chain, getRegister(Reg, N.getValueType()), N, Flag };
- return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.Val ? 4 : 3);
+ SDValue getCopyToReg(SDValue Chain, unsigned Reg, SDValue N,
+ SDValue Flag) {
+ const MVT *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
+ SDValue Ops[] = { Chain, getRegister(Reg, N.getValueType()), N, Flag };
+ return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.getNode() ? 4 : 3);
}
- // Similar to last getCopyToReg() except parameter Reg is a SDOperand
- SDOperand getCopyToReg(SDOperand Chain, SDOperand Reg, SDOperand N,
- SDOperand Flag) {
- const MVT::ValueType *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
- SDOperand Ops[] = { Chain, Reg, N, Flag };
- return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.Val ? 4 : 3);
+ // Similar to last getCopyToReg() except parameter Reg is a SDValue
+ SDValue getCopyToReg(SDValue Chain, SDValue Reg, SDValue N,
+ SDValue Flag) {
+ const MVT *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
+ SDValue Ops[] = { Chain, Reg, N, Flag };
+ return getNode(ISD::CopyToReg, VTs, 2, Ops, Flag.getNode() ? 4 : 3);
}
- SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT, MVT::Other);
- SDOperand Ops[] = { Chain, getRegister(Reg, VT) };
+ SDValue getCopyFromReg(SDValue Chain, unsigned Reg, MVT VT) {
+ const MVT *VTs = getNodeValueTypes(VT, MVT::Other);
+ SDValue Ops[] = { Chain, getRegister(Reg, VT) };
return getNode(ISD::CopyFromReg, VTs, 2, Ops, 2);
}
// This version of the getCopyFromReg method takes an extra operand, which
// indicates that there is potentially an incoming flag value (if Flag is not
// null) and that there should be a flag result.
- SDOperand getCopyFromReg(SDOperand Chain, unsigned Reg, MVT::ValueType VT,
- SDOperand Flag) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT, MVT::Other, MVT::Flag);
- SDOperand Ops[] = { Chain, getRegister(Reg, VT), Flag };
- return getNode(ISD::CopyFromReg, VTs, 3, Ops, Flag.Val ? 3 : 2);
+ SDValue getCopyFromReg(SDValue Chain, unsigned Reg, MVT VT,
+ SDValue Flag) {
+ const MVT *VTs = getNodeValueTypes(VT, MVT::Other, MVT::Flag);
+ SDValue Ops[] = { Chain, getRegister(Reg, VT), Flag };
+ return getNode(ISD::CopyFromReg, VTs, 3, Ops, Flag.getNode() ? 3 : 2);
}
- SDOperand getCondCode(ISD::CondCode Cond);
+ SDValue getCondCode(ISD::CondCode Cond);
+
+ /// Returns the ConvertRndSat Note: Avoid using this node because it may
+ /// disappear in the future and most targets don't support it.
+ SDValue getConvertRndSat(MVT VT, SDValue Val, SDValue DTy, SDValue STy,
+ SDValue Rnd, SDValue Sat, ISD::CvtCode Code);
/// getZeroExtendInReg - Return the expression required to zero extend the Op
/// value assuming it was the smaller SrcTy value.
- SDOperand getZeroExtendInReg(SDOperand Op, MVT::ValueType SrcTy);
+ SDValue getZeroExtendInReg(SDValue Op, MVT SrcTy);
/// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have
/// a flag result (to ensure it's not CSE'd).
- SDOperand getCALLSEQ_START(SDOperand Chain, SDOperand Op) {
- const MVT::ValueType *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
- SDOperand Ops[] = { Chain, Op };
+ SDValue getCALLSEQ_START(SDValue Chain, SDValue Op) {
+ const MVT *VTs = getNodeValueTypes(MVT::Other, MVT::Flag);
+ SDValue Ops[] = { Chain, Op };
return getNode(ISD::CALLSEQ_START, VTs, 2, Ops, 2);
}
+ /// getCALLSEQ_END - Return a new CALLSEQ_END node, which always must have a
+ /// flag result (to ensure it's not CSE'd).
+ SDValue getCALLSEQ_END(SDValue Chain, SDValue Op1, SDValue Op2,
+ SDValue InFlag) {
+ SDVTList NodeTys = getVTList(MVT::Other, MVT::Flag);
+ SmallVector<SDValue, 4> Ops;
+ Ops.push_back(Chain);
+ Ops.push_back(Op1);
+ Ops.push_back(Op2);
+ Ops.push_back(InFlag);
+ return getNode(ISD::CALLSEQ_END, NodeTys, &Ops[0],
+ (unsigned)Ops.size() - (InFlag.getNode() == 0 ? 1 : 0));
+ }
+
/// getNode - Gets or creates the specified node.
///
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT);
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT, SDOperand N);
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2);
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2, SDOperand N3);
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4);
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4,
- SDOperand N5);
- SDOperand getNode(unsigned Opcode, MVT::ValueType VT,
- const SDOperand *Ops, unsigned NumOps);
- SDOperand getNode(unsigned Opcode, std::vector<MVT::ValueType> &ResultTys,
- const SDOperand *Ops, unsigned NumOps);
- SDOperand getNode(unsigned Opcode, const MVT::ValueType *VTs, unsigned NumVTs,
- const SDOperand *Ops, unsigned NumOps);
- SDOperand getNode(unsigned Opcode, SDVTList VTs,
- const SDOperand *Ops, unsigned NumOps);
-
+ SDValue getNode(unsigned Opcode, MVT VT);
+ SDValue getNode(unsigned Opcode, MVT VT, SDValue N);
+ SDValue getNode(unsigned Opcode, MVT VT, SDValue N1, SDValue N2);
+ SDValue getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3);
+ SDValue getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4);
+ SDValue getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4,
+ SDValue N5);
+ SDValue getNode(unsigned Opcode, MVT VT,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, MVT VT,
+ const SDUse *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, const std::vector<MVT> &ResultTys,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, const MVT *VTs, unsigned NumVTs,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, SDVTList VTs);
+ SDValue getNode(unsigned Opcode, SDVTList VTs, SDValue N);
+ SDValue getNode(unsigned Opcode, SDVTList VTs, SDValue N1, SDValue N2);
+ SDValue getNode(unsigned Opcode, SDVTList VTs,
+ SDValue N1, SDValue N2, SDValue N3);
+ SDValue getNode(unsigned Opcode, SDVTList VTs,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4);
+ SDValue getNode(unsigned Opcode, SDVTList VTs,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4,
+ SDValue N5);
+ SDValue getNode(unsigned Opcode, SDVTList VTs,
+ const SDValue *Ops, unsigned NumOps);
+
+ SDValue getMemcpy(SDValue Chain, SDValue Dst, SDValue Src,
+ SDValue Size, unsigned Align, bool AlwaysInline,
+ const Value *DstSV, uint64_t DstSVOff,
+ const Value *SrcSV, uint64_t SrcSVOff);
+
+ SDValue getMemmove(SDValue Chain, SDValue Dst, SDValue Src,
+ SDValue Size, unsigned Align,
+ const Value *DstSV, uint64_t DstOSVff,
+ const Value *SrcSV, uint64_t SrcSVOff);
+
+ SDValue getMemset(SDValue Chain, SDValue Dst, SDValue Src,
+ SDValue Size, unsigned Align,
+ const Value *DstSV, uint64_t DstSVOff);
+
/// getSetCC - Helper function to make it easier to build SetCC's if you just
- /// have an ISD::CondCode instead of an SDOperand.
+ /// have an ISD::CondCode instead of an SDValue.
///
- SDOperand getSetCC(MVT::ValueType VT, SDOperand LHS, SDOperand RHS,
- ISD::CondCode Cond) {
+ SDValue getSetCC(MVT VT, SDValue LHS, SDValue RHS,
+ ISD::CondCode Cond) {
return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond));
}
+ /// getVSetCC - Helper function to make it easier to build VSetCC's nodes
+ /// if you just have an ISD::CondCode instead of an SDValue.
+ ///
+ SDValue getVSetCC(MVT VT, SDValue LHS, SDValue RHS,
+ ISD::CondCode Cond) {
+ return getNode(ISD::VSETCC, VT, LHS, RHS, getCondCode(Cond));
+ }
+
/// getSelectCC - Helper function to make it easier to build SelectCC's if you
- /// just have an ISD::CondCode instead of an SDOperand.
+ /// just have an ISD::CondCode instead of an SDValue.
///
- SDOperand getSelectCC(SDOperand LHS, SDOperand RHS,
- SDOperand True, SDOperand False, ISD::CondCode Cond) {
+ SDValue getSelectCC(SDValue LHS, SDValue RHS,
+ SDValue True, SDValue False, ISD::CondCode Cond) {
return getNode(ISD::SELECT_CC, True.getValueType(), LHS, RHS, True, False,
getCondCode(Cond));
}
/// getVAArg - VAArg produces a result and token chain, and takes a pointer
/// and a source value as input.
- SDOperand getVAArg(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr,
- SDOperand SV);
+ SDValue getVAArg(MVT VT, SDValue Chain, SDValue Ptr,
+ SDValue SV);
+
+ /// getAtomic - Gets a node for an atomic op, produces result and chain and
+ /// takes 3 operands
+ SDValue getAtomic(unsigned Opcode, SDValue Chain, SDValue Ptr,
+ SDValue Cmp, SDValue Swp, const Value* PtrVal,
+ unsigned Alignment=0);
+
+ /// getAtomic - Gets a node for an atomic op, produces result and chain and
+ /// takes 2 operands.
+ SDValue getAtomic(unsigned Opcode, SDValue Chain, SDValue Ptr,
+ SDValue Val, const Value* PtrVal,
+ unsigned Alignment = 0);
+
+ /// getMemIntrinsicNode - Creates a MemIntrinsicNode that may produce a
+ /// result and takes a list of operands.
+ SDValue getMemIntrinsicNode(unsigned Opcode,
+ const MVT *VTs, unsigned NumVTs,
+ const SDValue *Ops, unsigned NumOps,
+ MVT MemVT, const Value *srcValue, int SVOff,
+ unsigned Align = 0, bool Vol = false,
+ bool ReadMem = true, bool WriteMem = true);
+
+ SDValue getMemIntrinsicNode(unsigned Opcode, SDVTList VTList,
+ const SDValue *Ops, unsigned NumOps,
+ MVT MemVT, const Value *srcValue, int SVOff,
+ unsigned Align = 0, bool Vol = false,
+ bool ReadMem = true, bool WriteMem = true);
+
+ /// getMergeValues - Create a MERGE_VALUES node from the given operands.
+ SDValue getMergeValues(const SDValue *Ops, unsigned NumOps);
+
+ /// getCall - Create a CALL node from the given information.
+ ///
+ SDValue getCall(unsigned CallingConv, bool IsVarArgs, bool IsTailCall,
+ bool isInreg, SDVTList VTs, const SDValue *Operands,
+ unsigned NumOperands);
/// getLoad - Loads are not normal binary operators: their result type is not
/// determined by their operands, and they produce a value AND a token chain.
///
- SDOperand getLoad(MVT::ValueType VT, SDOperand Chain, SDOperand Ptr,
+ SDValue getLoad(MVT VT, SDValue Chain, SDValue Ptr,
const Value *SV, int SVOffset, bool isVolatile=false,
unsigned Alignment=0);
- SDOperand getExtLoad(ISD::LoadExtType ExtType, MVT::ValueType VT,
- SDOperand Chain, SDOperand Ptr, const Value *SV,
- int SVOffset, MVT::ValueType EVT, bool isVolatile=false,
+ SDValue getExtLoad(ISD::LoadExtType ExtType, MVT VT,
+ SDValue Chain, SDValue Ptr, const Value *SV,
+ int SVOffset, MVT EVT, bool isVolatile=false,
unsigned Alignment=0);
- SDOperand getIndexedLoad(SDOperand OrigLoad, SDOperand Base,
- SDOperand Offset, ISD::MemIndexedMode AM);
- SDOperand getVecLoad(unsigned Count, MVT::ValueType VT, SDOperand Chain,
- SDOperand Ptr, SDOperand SV);
+ SDValue getIndexedLoad(SDValue OrigLoad, SDValue Base,
+ SDValue Offset, ISD::MemIndexedMode AM);
+ SDValue getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType,
+ MVT VT, SDValue Chain,
+ SDValue Ptr, SDValue Offset,
+ const Value *SV, int SVOffset, MVT EVT,
+ bool isVolatile=false, unsigned Alignment=0);
/// getStore - Helper function to build ISD::STORE nodes.
///
- SDOperand getStore(SDOperand Chain, SDOperand Val, SDOperand Ptr,
+ SDValue getStore(SDValue Chain, SDValue Val, SDValue Ptr,
const Value *SV, int SVOffset, bool isVolatile=false,
unsigned Alignment=0);
- SDOperand getTruncStore(SDOperand Chain, SDOperand Val, SDOperand Ptr,
- const Value *SV, int SVOffset, MVT::ValueType TVT,
+ SDValue getTruncStore(SDValue Chain, SDValue Val, SDValue Ptr,
+ const Value *SV, int SVOffset, MVT TVT,
bool isVolatile=false, unsigned Alignment=0);
- SDOperand getIndexedStore(SDOperand OrigStoe, SDOperand Base,
- SDOperand Offset, ISD::MemIndexedMode AM);
+ SDValue getIndexedStore(SDValue OrigStoe, SDValue Base,
+ SDValue Offset, ISD::MemIndexedMode AM);
+
+ // getSrcValue - Construct a node to track a Value* through the backend.
+ SDValue getSrcValue(const Value *v);
- // getSrcValue - construct a node to track a Value* through the backend
- SDOperand getSrcValue(const Value* I, int offset = 0);
+ // getMemOperand - Construct a node to track a memory reference
+ // through the backend.
+ SDValue getMemOperand(const MachineMemOperand &MO);
/// UpdateNodeOperands - *Mutate* the specified node in-place to have the
/// specified operands. If the resultant node already exists in the DAG,
/// already exists. If the resultant node does not exist in the DAG, the
/// input node is returned. As a degenerate case, if you specify the same
/// input operands as the node already has, the input node is returned.
- SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op);
- SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2);
- SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2,
- SDOperand Op3);
- SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2,
- SDOperand Op3, SDOperand Op4);
- SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2,
- SDOperand Op3, SDOperand Op4, SDOperand Op5);
- SDOperand UpdateNodeOperands(SDOperand N, SDOperand *Ops, unsigned NumOps);
+ SDValue UpdateNodeOperands(SDValue N, SDValue Op);
+ SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2);
+ SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2,
+ SDValue Op3);
+ SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2,
+ SDValue Op3, SDValue Op4);
+ SDValue UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2,
+ SDValue Op3, SDValue Op4, SDValue Op5);
+ SDValue UpdateNodeOperands(SDValue N,
+ const SDValue *Ops, unsigned NumOps);
/// SelectNodeTo - These are used for target selectors to *mutate* the
/// specified node to have the specified return type, Target opcode, and
/// operands. Note that target opcodes are stored as
- /// ISD::BUILTIN_OP_END+TargetOpcode in the node opcode field. The 0th value
- /// of the resultant node is returned.
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT);
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT,
- SDOperand Op1);
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT,
- SDOperand Op1, SDOperand Op2);
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT,
- SDOperand Op1, SDOperand Op2, SDOperand Op3);
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT,
- const SDOperand *Ops, unsigned NumOps);
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1, SDOperand Op2);
- SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1, SDOperand Op2,
- SDOperand Op3);
-
+ /// ~TargetOpcode in the node opcode field. The resultant node is returned.
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT, SDValue Op1);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT,
+ SDValue Op1, SDValue Op2);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT,
+ SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT,
+ const SDValue *Ops, unsigned NumOps);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1, MVT VT2);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1,
+ MVT VT2, const SDValue *Ops, unsigned NumOps);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1,
+ MVT VT2, MVT VT3, const SDValue *Ops, unsigned NumOps);
+ SDNode *SelectNodeTo(SDNode *N, unsigned MachineOpc, MVT VT1,
+ MVT VT2, MVT VT3, MVT VT4, const SDValue *Ops,
+ unsigned NumOps);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1,
+ MVT VT2, SDValue Op1);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1,
+ MVT VT2, SDValue Op1, SDValue Op2);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1,
+ MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, MVT VT1,
+ MVT VT2, MVT VT3, SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *SelectNodeTo(SDNode *N, unsigned TargetOpc, SDVTList VTs,
+ const SDValue *Ops, unsigned NumOps);
+
+ /// MorphNodeTo - These *mutate* the specified node to have the specified
+ /// return type, opcode, and operands.
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT, SDValue Op1);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT,
+ SDValue Op1, SDValue Op2);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT,
+ SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT,
+ const SDValue *Ops, unsigned NumOps);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1, MVT VT2);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1,
+ MVT VT2, const SDValue *Ops, unsigned NumOps);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1,
+ MVT VT2, MVT VT3, const SDValue *Ops, unsigned NumOps);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1,
+ MVT VT2, SDValue Op1);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1,
+ MVT VT2, SDValue Op1, SDValue Op2);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, MVT VT1,
+ MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *MorphNodeTo(SDNode *N, unsigned Opc, SDVTList VTs,
+ const SDValue *Ops, unsigned NumOps);
/// getTargetNode - These are used for target selectors to create a new node
/// with specified return type(s), target opcode, and operands.
/// Note that getTargetNode returns the resultant node. If there is already a
/// node of the specified opcode and operands, it returns that node instead of
/// the current one.
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Op1);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Op1, SDOperand Op2);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Op1, SDOperand Op2, SDOperand Op3);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT,
- const SDOperand *Ops, unsigned NumOps);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1, SDOperand Op2);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1, SDOperand Op2,
- SDOperand Op3);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2,
- const SDOperand *Ops, unsigned NumOps);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- SDOperand Op1, SDOperand Op2);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- SDOperand Op1, SDOperand Op2, SDOperand Op3);
- SDNode *getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- const SDOperand *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT, SDValue Op1);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT, SDValue Op1, SDValue Op2);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT,
+ SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT,
+ const SDValue *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, SDValue Op1);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1,
+ MVT VT2, SDValue Op1, SDValue Op2);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1,
+ MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2,
+ const SDValue *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ SDValue Op1, SDValue Op2);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ SDValue Op1, SDValue Op2, SDValue Op3);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ const SDValue *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3, MVT VT4,
+ const SDValue *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, const std::vector<MVT> &ResultTys,
+ const SDValue *Ops, unsigned NumOps);
+
+ /// getNodeIfExists - Get the specified node if it's already available, or
+ /// else return NULL.
+ SDNode *getNodeIfExists(unsigned Opcode, SDVTList VTs,
+ const SDValue *Ops, unsigned NumOps);
+
+ /// DAGUpdateListener - Clients of various APIs that cause global effects on
+ /// the DAG can optionally implement this interface. This allows the clients
+ /// to handle the various sorts of updates that happen.
+ class DAGUpdateListener {
+ public:
+ virtual ~DAGUpdateListener();
+
+ /// NodeDeleted - The node N that was deleted and, if E is not null, an
+ /// equivalent node E that replaced it.
+ virtual void NodeDeleted(SDNode *N, SDNode *E) = 0;
+
+ /// NodeUpdated - The node N that was updated.
+ virtual void NodeUpdated(SDNode *N) = 0;
+ };
+
+ /// RemoveDeadNode - Remove the specified node from the system. If any of its
+ /// operands then becomes dead, remove them as well. Inform UpdateListener
+ /// for each node deleted.
+ void RemoveDeadNode(SDNode *N, DAGUpdateListener *UpdateListener = 0);
+ /// RemoveDeadNodes - This method deletes the unreachable nodes in the
+ /// given list, and any nodes that become unreachable as a result.
+ void RemoveDeadNodes(SmallVectorImpl<SDNode *> &DeadNodes,
+ DAGUpdateListener *UpdateListener = 0);
+
/// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.
/// This can cause recursive merging of nodes in the DAG. Use the first
/// version if 'From' is known to have a single result, use the second
/// if you have two nodes with identical results, use the third otherwise.
///
- /// These methods all take an optional vector, which (if not null) is
- /// populated with any nodes that are deleted from the SelectionDAG, due to
- /// new equivalences that are discovered.
+ /// These methods all take an optional UpdateListener, which (if not null) is
+ /// informed about nodes that are deleted and modified due to recursive
+ /// changes in the dag.
///
- void ReplaceAllUsesWith(SDOperand From, SDOperand Op,
- std::vector<SDNode*> *Deleted = 0);
+ void ReplaceAllUsesWith(SDValue From, SDValue Op,
+ DAGUpdateListener *UpdateListener = 0);
void ReplaceAllUsesWith(SDNode *From, SDNode *To,
- std::vector<SDNode*> *Deleted = 0);
- void ReplaceAllUsesWith(SDNode *From, const SDOperand *To,
- std::vector<SDNode*> *Deleted = 0);
+ DAGUpdateListener *UpdateListener = 0);
+ void ReplaceAllUsesWith(SDNode *From, const SDValue *To,
+ DAGUpdateListener *UpdateListener = 0);
/// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving
- /// uses of other values produced by From.Val alone. The Deleted vector is
- /// handled the same was as for ReplaceAllUsesWith, but it is required for
- /// this method.
- void ReplaceAllUsesOfValueWith(SDOperand From, SDOperand To,
- std::vector<SDNode*> &Deleted);
-
- /// AssignNodeIds - Assign a unique node id for each node in the DAG based on
- /// their allnodes order. It returns the maximum id.
- unsigned AssignNodeIds();
-
- /// AssignTopologicalOrder - Assign a unique node id for each node in the DAG
- /// based on their topological order. It returns the maximum id and a vector
- /// of the SDNodes* in assigned order by reference.
- unsigned AssignTopologicalOrder(std::vector<SDNode*> &TopOrder);
+ /// uses of other values produced by From.Val alone.
+ void ReplaceAllUsesOfValueWith(SDValue From, SDValue To,
+ DAGUpdateListener *UpdateListener = 0);
+
+ /// ReplaceAllUsesOfValuesWith - Like ReplaceAllUsesOfValueWith, but
+ /// for multiple values at once. This correctly handles the case where
+ /// there is an overlap between the From values and the To values.
+ void ReplaceAllUsesOfValuesWith(const SDValue *From, const SDValue *To,
+ unsigned Num,
+ DAGUpdateListener *UpdateListener = 0);
+
+ /// AssignTopologicalOrder - Topological-sort the AllNodes list and a
+ /// assign a unique node id for each node in the DAG based on their
+ /// topological order. Returns the number of nodes.
+ unsigned AssignTopologicalOrder();
+
+ /// RepositionNode - Move node N in the AllNodes list to be immediately
+ /// before the given iterator Position. This may be used to update the
+ /// topological ordering when the list of nodes is modified.
+ void RepositionNode(allnodes_iterator Position, SDNode *N) {
+ AllNodes.insert(Position, AllNodes.remove(N));
+ }
/// isCommutativeBinOp - Returns true if the opcode is a commutative binary
/// operation.
static bool isCommutativeBinOp(unsigned Opcode) {
+ // FIXME: This should get its info from the td file, so that we can include
+ // target info.
switch (Opcode) {
case ISD::ADD:
case ISD::MUL:
case ISD::MULHU:
case ISD::MULHS:
+ case ISD::SMUL_LOHI:
+ case ISD::UMUL_LOHI:
case ISD::FADD:
case ISD::FMUL:
case ISD::AND:
void dump() const;
+ /// CreateStackTemporary - Create a stack temporary, suitable for holding the
+ /// specified value type. If minAlign is specified, the slot size will have
+ /// at least that alignment.
+ SDValue CreateStackTemporary(MVT VT, unsigned minAlign = 1);
+
+ /// CreateStackTemporary - Create a stack temporary suitable for holding
+ /// either of the specified value types.
+ SDValue CreateStackTemporary(MVT VT1, MVT VT2);
+
+ /// FoldConstantArithmetic -
+ SDValue FoldConstantArithmetic(unsigned Opcode,
+ MVT VT,
+ ConstantSDNode *Cst1,
+ ConstantSDNode *Cst2);
+
/// FoldSetCC - Constant fold a setcc to true or false.
- SDOperand FoldSetCC(MVT::ValueType VT, SDOperand N1,
- SDOperand N2, ISD::CondCode Cond);
+ SDValue FoldSetCC(MVT VT, SDValue N1,
+ SDValue N2, ISD::CondCode Cond);
+ /// SignBitIsZero - Return true if the sign bit of Op is known to be zero. We
+ /// use this predicate to simplify operations downstream.
+ bool SignBitIsZero(SDValue Op, unsigned Depth = 0) const;
+
/// MaskedValueIsZero - Return true if 'Op & Mask' is known to be zero. We
/// use this predicate to simplify operations downstream. Op and Mask are
/// known to be the same type.
- bool MaskedValueIsZero(SDOperand Op, uint64_t Mask, unsigned Depth = 0)
+ bool MaskedValueIsZero(SDValue Op, const APInt &Mask, unsigned Depth = 0)
const;
/// ComputeMaskedBits - Determine which of the bits specified in Mask are
/// bitsets. This code only analyzes bits in Mask, in order to short-circuit
/// processing. Targets can implement the computeMaskedBitsForTargetNode
/// method in the TargetLowering class to allow target nodes to be understood.
- void ComputeMaskedBits(SDOperand Op, uint64_t Mask, uint64_t &KnownZero,
- uint64_t &KnownOne, unsigned Depth = 0) const;
-
+ void ComputeMaskedBits(SDValue Op, const APInt &Mask, APInt &KnownZero,
+ APInt &KnownOne, unsigned Depth = 0) const;
+
/// ComputeNumSignBits - Return the number of times the sign bit of the
/// register is replicated into the other bits. We know that at least 1 bit
/// is always equal to the sign bit (itself), but other cases can give us
/// the top 3 bits are all equal to each other, so we return 3. Targets can
/// implement the ComputeNumSignBitsForTarget method in the TargetLowering
/// class to allow target nodes to be understood.
- unsigned ComputeNumSignBits(SDOperand Op, unsigned Depth = 0) const;
+ unsigned ComputeNumSignBits(SDValue Op, unsigned Depth = 0) const;
+
+ /// isVerifiedDebugInfoDesc - Returns true if the specified SDValue has
+ /// been verified as a debug information descriptor.
+ bool isVerifiedDebugInfoDesc(SDValue Op) const;
+
+ /// getShuffleScalarElt - Returns the scalar element that will make up the ith
+ /// element of the result of the vector shuffle.
+ SDValue getShuffleScalarElt(const SDNode *N, unsigned Idx);
private:
- void RemoveNodeFromCSEMaps(SDNode *N);
+ bool RemoveNodeFromCSEMaps(SDNode *N);
SDNode *AddNonLeafNodeToCSEMaps(SDNode *N);
- SDNode *FindModifiedNodeSlot(SDNode *N, SDOperand Op, void *&InsertPos);
- SDNode *FindModifiedNodeSlot(SDNode *N, SDOperand Op1, SDOperand Op2,
+ SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op, void *&InsertPos);
+ SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op1, SDValue Op2,
void *&InsertPos);
- SDNode *FindModifiedNodeSlot(SDNode *N, const SDOperand *Ops, unsigned NumOps,
+ SDNode *FindModifiedNodeSlot(SDNode *N, const SDValue *Ops, unsigned NumOps,
void *&InsertPos);
void DeleteNodeNotInCSEMaps(SDNode *N);
+
+ unsigned getMVTAlignment(MVT MemoryVT) const;
+
+ void allnodes_clear();
// List of non-single value types.
- std::list<std::vector<MVT::ValueType> > VTList;
+ std::vector<SDVTList> VTList;
// Maps to auto-CSE operations.
std::vector<CondCodeSDNode*> CondCodeNodes;
std::vector<SDNode*> ValueTypeNodes;
- std::map<std::string, SDNode*> ExternalSymbols;
- std::map<std::string, SDNode*> TargetExternalSymbols;
- std::map<std::string, StringSDNode*> StringNodes;
+ std::map<MVT, SDNode*, MVT::compareRawBits> ExtendedValueTypeNodes;
+ StringMap<SDNode*> ExternalSymbols;
+ StringMap<SDNode*> TargetExternalSymbols;
};
template <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> {
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