#define LLVM_CODEGEN_SELECTIONDAG_H
#include "llvm/ADT/ilist.h"
+#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/CodeGen/SelectionDAGNodes.h"
#include <cassert>
-#include <list>
#include <vector>
#include <map>
#include <string>
class TargetLowering;
class TargetMachine;
class MachineModuleInfo;
+class DwarfWriter;
class MachineFunction;
class MachineConstantPoolValue;
class FunctionLoweringInfo;
-/// NodeAllocatorType - The AllocatorType for allocating SDNodes. We use
-/// pool allocation with recycling.
-///
-typedef RecyclingAllocator<BumpPtrAllocator, SDNode, sizeof(LargestSDNode),
- AlignOf<MostAlignedSDNode>::Alignment>
- NodeAllocatorType;
-
-template<> class ilist_traits<SDNode> : public ilist_default_traits<SDNode> {
- mutable SDNode Sentinel;
+template<> struct ilist_traits<SDNode> : public ilist_default_traits<SDNode> {
+private:
+ mutable ilist_node<SDNode> Sentinel;
public:
- ilist_traits() : Sentinel(ISD::DELETED_NODE, SDVTList()) {}
-
SDNode *createSentinel() const {
- return &Sentinel;
+ return static_cast<SDNode*>(&Sentinel);
}
static void destroySentinel(SDNode *) {}
+ SDNode *provideInitialHead() const { return createSentinel(); }
+ SDNode *ensureHead(SDNode*) const { return createSentinel(); }
+ static void noteHead(SDNode*, SDNode*) {}
+
static void deleteNode(SDNode *) {
assert(0 && "ilist_traits<SDNode> shouldn't see a deleteNode call!");
}
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
/// selection. This DAG is constructed as the first step of instruction
///
class SelectionDAG {
TargetLowering &TLI;
- MachineFunction &MF;
+ MachineFunction *MF;
FunctionLoweringInfo &FLI;
MachineModuleInfo *MMI;
+ DwarfWriter *DW;
- /// Root - The root of the entire DAG. EntryNode - The starting token.
- SDValue 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;
- /// NodeAllocator - Pool allocation for nodes. The allocator isn't
- /// allocated inside this class because we want to reuse a single
- /// recycler across multiple SelectionDAG runs.
- NodeAllocatorType &NodeAllocator;
+ /// 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,
- FunctionLoweringInfo &fli, MachineModuleInfo *mmi,
- NodeAllocatorType &nodeallocator)
- : TLI(tli), MF(mf), FLI(fli), MMI(mmi), NodeAllocator(nodeallocator) {
- 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, DwarfWriter *dw);
+
+ /// 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; }
+ DwarfWriter *getDwarfWriter() const { return DW; }
/// viewGraph - Pop up a GraphViz/gv window with the DAG rendered using 'dot'.
///
void viewGraph(const std::string &Title);
void viewGraph();
-
+
#ifndef NDEBUG
std::map<const SDNode *, std::string> NodeGraphAttrs;
#endif
/// clearGraphAttrs - Clear all previously defined node graph attributes.
/// Intended to be used from a debugging tool (eg. gdb).
void clearGraphAttrs();
-
+
/// setGraphAttrs - Set graph attributes for a node. (eg. "color=red".)
///
void setGraphAttrs(const SDNode *N, const char *Attrs);
-
+
/// getGraphAttrs - Get graph attributes for a node. (eg. "color=red".)
/// Used from getNodeAttributes.
const std::string getGraphAttrs(const SDNode *N) const;
-
+
/// setGraphColor - Convenience for setting node color attribute.
///
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(); }
ilist<SDNode>::size_type allnodes_size() const {
return AllNodes.size();
}
-
+
/// getRoot - Return the root tag of the SelectionDAG.
///
const SDValue &getRoot() const { return Root; }
/// getEntryNode - Return the token chain corresponding to the entry of the
/// function.
- const SDValue &getEntryNode() const { return EntryNode; }
+ SDValue getEntryNode() const {
+ return SDValue(const_cast<SDNode *>(&EntryNode), 0);
+ }
/// setRoot - Set the current root tag of the SelectionDAG.
///
const SDValue &setRoot(SDValue N) {
- assert((!N.Val || N.getValueType() == MVT::Other) &&
+ 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.
+ /// 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.
- void LegalizeTypes();
-
+ bool LegalizeTypes();
+
/// Legalize - This transforms the SelectionDAG into a SelectionDAG that is
/// compatible with the target instruction selector, as indicated by the
/// TargetLowering object.
///
/// Note that this is an involved process that may invalidate pointers into
/// the graph.
- void Legalize();
+ void Legalize(bool TypesNeedLegalizing, bool Fast);
/// RemoveDeadNodes - This method deletes all unreachable nodes in the
/// SelectionDAG.
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 *getNodeValueTypes(MVT VT) {
return getVTList(VT).VTs;
const MVT *getNodeValueTypes(MVT VT1, MVT VT2, MVT VT3) {
return getVTList(VT1, VT2, VT3).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.
//
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);
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);
+ }
SDValue getGlobalAddress(const GlobalValue *GV, MVT VT,
- int offset = 0, bool isTargetGA = false);
+ int64_t offset = 0, bool isTargetGA = false);
SDValue getTargetGlobalAddress(const GlobalValue *GV, MVT VT,
- int offset = 0) {
+ int64_t offset = 0) {
return getGlobalAddress(GV, VT, offset, true);
}
SDValue getFrameIndex(int FI, MVT VT, bool isTarget = false);
int Offset = 0) {
return getConstantPool(C, VT, Align, Offset, true);
}
+ // When generating a branch to a BB, we don't in general know enough
+ // to provide debug info for the BB at that time, so keep this one around.
SDValue getBasicBlock(MachineBasicBlock *MBB);
+ SDValue getBasicBlock(MachineBasicBlock *MBB, DebugLoc dl);
SDValue getExternalSymbol(const char *Sym, MVT VT);
+ SDValue getExternalSymbol(const char *Sym, DebugLoc dl, MVT VT);
SDValue getTargetExternalSymbol(const char *Sym, MVT VT);
+ SDValue getTargetExternalSymbol(const char *Sym, DebugLoc dl, 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);
+ Value *CU);
+ SDValue getLabel(unsigned Opcode, DebugLoc dl, SDValue Root,
+ unsigned LabelID);
- SDValue getCopyToReg(SDValue Chain, unsigned Reg, SDValue N) {
- return getNode(ISD::CopyToReg, MVT::Other, Chain,
+ SDValue getCopyToReg(SDValue Chain, DebugLoc dl, unsigned Reg, SDValue N) {
+ return getNode(ISD::CopyToReg, dl, 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.
- SDValue getCopyToReg(SDValue Chain, unsigned Reg, SDValue N,
+ SDValue getCopyToReg(SDValue Chain, DebugLoc dl, 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.Val ? 4 : 3);
+ return getNode(ISD::CopyToReg, dl, VTs, 2, Ops, Flag.getNode() ? 4 : 3);
}
// Similar to last getCopyToReg() except parameter Reg is a SDValue
- SDValue getCopyToReg(SDValue Chain, SDValue Reg, SDValue N,
+ SDValue getCopyToReg(SDValue Chain, DebugLoc dl, 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.Val ? 4 : 3);
+ return getNode(ISD::CopyToReg, dl, VTs, 2, Ops, Flag.getNode() ? 4 : 3);
}
-
- SDValue getCopyFromReg(SDValue Chain, unsigned Reg, MVT VT) {
+
+ SDValue getCopyFromReg(SDValue Chain, DebugLoc dl, 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);
+ return getNode(ISD::CopyFromReg, dl, 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.
- SDValue getCopyFromReg(SDValue Chain, unsigned Reg, MVT VT,
+ SDValue getCopyFromReg(SDValue Chain, DebugLoc dl, 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.Val ? 3 : 2);
+ return getNode(ISD::CopyFromReg, dl, VTs, 3, Ops, Flag.getNode() ? 3 : 2);
}
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, DebugLoc dl, 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.
- SDValue getZeroExtendInReg(SDValue Op, MVT SrcTy);
-
+ SDValue getZeroExtendInReg(SDValue Op, DebugLoc DL, MVT SrcTy);
+
+ /// getNOT - Create a bitwise NOT operation as (XOR Val, -1).
+ SDValue getNOT(DebugLoc DL, SDValue Val, MVT VT);
+
/// getCALLSEQ_START - Return a new CALLSEQ_START node, which always must have
- /// a flag result (to ensure it's not CSE'd).
+ /// a flag result (to ensure it's not CSE'd). CALLSEQ_START does not have a
+ /// useful DebugLoc.
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);
+ return getNode(ISD::CALLSEQ_START, DebugLoc::getUnknownLoc(),
+ 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).
+ /// flag result (to ensure it's not CSE'd). CALLSEQ_END does not have
+ /// a useful DebugLoc.
SDValue getCALLSEQ_END(SDValue Chain, SDValue Op1, SDValue Op2,
SDValue InFlag) {
SDVTList NodeTys = getVTList(MVT::Other, MVT::Flag);
Ops.push_back(Op1);
Ops.push_back(Op2);
Ops.push_back(InFlag);
- return getNode(ISD::CALLSEQ_END, NodeTys, &Ops[0],
- (unsigned)Ops.size() - (InFlag.Val == 0 ? 1 : 0));
+ return getNode(ISD::CALLSEQ_END, DebugLoc::getUnknownLoc(), NodeTys,
+ &Ops[0],
+ (unsigned)Ops.size() - (InFlag.getNode() == 0 ? 1 : 0));
+ }
+
+ /// getUNDEF - Return an UNDEF node. UNDEF does not have a useful DebugLoc.
+ SDValue getUNDEF(MVT VT) {
+ return getNode(ISD::UNDEF, DebugLoc::getUnknownLoc(), VT);
+ }
+
+ /// getGLOBAL_OFFSET_TABLE - Return a GLOBAL_OFFSET_TABLE node. This does
+ /// not have a useful DebugLoc.
+ SDValue getGLOBAL_OFFSET_TABLE(MVT VT) {
+ return getNode(ISD::GLOBAL_OFFSET_TABLE, DebugLoc::getUnknownLoc(), VT);
}
/// getNode - Gets or creates the specified node.
///
- 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);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT, SDValue N);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT, SDValue N1, SDValue N2);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4,
+ SDValue N5);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT,
+ const SDUse *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, MVT VT,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, DebugLoc DL,
+ const std::vector<MVT> &ResultTys,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, const MVT *VTs, unsigned NumVTs,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
+ const SDValue *Ops, unsigned NumOps);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs, SDValue N);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
+ SDValue N1, SDValue N2);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
+ SDValue N1, SDValue N2, SDValue N3);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4);
+ SDValue getNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
+ SDValue N1, SDValue N2, SDValue N3, SDValue N4,
+ SDValue N5);
+
+ SDValue getMemcpy(SDValue Chain, DebugLoc dl, 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, DebugLoc dl, SDValue Dst, SDValue Src,
+ SDValue Size, unsigned Align,
+ const Value *DstSV, uint64_t DstOSVff,
+ const Value *SrcSV, uint64_t SrcSVOff);
+
+ SDValue getMemset(SDValue Chain, DebugLoc dl, 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 SDValue.
///
- SDValue getSetCC(MVT VT, SDValue LHS, SDValue RHS,
- ISD::CondCode Cond) {
- return getNode(ISD::SETCC, VT, LHS, RHS, getCondCode(Cond));
+ SDValue getSetCC(DebugLoc DL, MVT VT, SDValue LHS, SDValue RHS,
+ ISD::CondCode Cond) {
+ return getNode(ISD::SETCC, DL, 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));
+ SDValue getVSetCC(DebugLoc DL, MVT VT, SDValue LHS, SDValue RHS,
+ ISD::CondCode Cond) {
+ return getNode(ISD::VSETCC, DL, 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 SDValue.
///
- 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));
+ SDValue getSelectCC(DebugLoc DL, SDValue LHS, SDValue RHS,
+ SDValue True, SDValue False, ISD::CondCode Cond) {
+ return getNode(ISD::SELECT_CC, DL, 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.
- SDValue getVAArg(MVT VT, SDValue Chain, SDValue Ptr,
- SDValue SV);
+ SDValue getVAArg(MVT VT, DebugLoc dl, SDValue Chain, SDValue Ptr,
+ SDValue SV);
- /// getAtomic - Gets a node for an atomic op, produces result and chain, 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 3 operands
+ SDValue getAtomic(unsigned Opcode, DebugLoc dl, MVT MemVT, 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, takes
- /// 2 operands
- SDValue getAtomic(unsigned Opcode, SDValue Chain, SDValue Ptr,
- SDValue Val, 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, DebugLoc dl, MVT MemVT, 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, DebugLoc dl,
+ 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, DebugLoc dl, 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.
- /// Allowed to return something different (and simpler) if Simplify is true.
- SDValue getMergeValues(const SDValue *Ops, unsigned NumOps,
- bool Simplify = true);
+ SDValue getMergeValues(const SDValue *Ops, unsigned NumOps, DebugLoc dl);
- /// getMergeValues - Create a MERGE_VALUES node from the given types and ops.
- /// Allowed to return something different (and simpler) if Simplify is true.
- /// May be faster than the above version if VTs is known and NumOps is large.
- SDValue getMergeValues(SDVTList VTs, const SDValue *Ops, unsigned NumOps,
- bool Simplify = true) {
- if (Simplify && NumOps == 1)
- return Ops[0];
- return getNode(ISD::MERGE_VALUES, VTs, Ops, NumOps);
- }
+ /// getCall - Create a CALL node from the given information.
+ ///
+ SDValue getCall(unsigned CallingConv, DebugLoc dl, 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.
///
- SDValue getLoad(MVT VT, SDValue Chain, SDValue Ptr,
+ SDValue getLoad(MVT VT, DebugLoc dl, SDValue Chain, SDValue Ptr,
const Value *SV, int SVOffset, bool isVolatile=false,
unsigned Alignment=0);
- SDValue getExtLoad(ISD::LoadExtType ExtType, MVT VT,
+ SDValue getExtLoad(ISD::LoadExtType ExtType, DebugLoc dl, MVT VT,
SDValue Chain, SDValue Ptr, const Value *SV,
int SVOffset, MVT EVT, bool isVolatile=false,
unsigned Alignment=0);
- SDValue getIndexedLoad(SDValue OrigLoad, SDValue Base,
+ SDValue getIndexedLoad(SDValue OrigLoad, DebugLoc dl, SDValue Base,
SDValue Offset, ISD::MemIndexedMode AM);
- SDValue getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType,
+ SDValue getLoad(ISD::MemIndexedMode AM, DebugLoc dl, ISD::LoadExtType ExtType,
MVT VT, SDValue Chain,
SDValue Ptr, SDValue Offset,
const Value *SV, int SVOffset, MVT EVT,
/// getStore - Helper function to build ISD::STORE nodes.
///
- SDValue getStore(SDValue Chain, SDValue Val, SDValue Ptr,
+ SDValue getStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr,
const Value *SV, int SVOffset, bool isVolatile=false,
unsigned Alignment=0);
- SDValue getTruncStore(SDValue Chain, SDValue Val, SDValue Ptr,
+ SDValue getTruncStore(SDValue Chain, DebugLoc dl, SDValue Val, SDValue Ptr,
const Value *SV, int SVOffset, MVT TVT,
bool isVolatile=false, unsigned Alignment=0);
- SDValue getIndexedStore(SDValue OrigStoe, SDValue Base,
+ SDValue getIndexedStore(SDValue OrigStoe, DebugLoc dl, SDValue Base,
SDValue Offset, ISD::MemIndexedMode AM);
- // getSrcValue - Construct a node to track a Value* through the backend.
+ /// getSrcValue - Construct a node to track a Value* through the backend.
SDValue getSrcValue(const Value *v);
- // getMemOperand - Construct a node to track a memory reference
- // through the backend.
+ /// getMemOperand - Construct a node to track a memory reference
+ /// through the backend.
SDValue getMemOperand(const MachineMemOperand &MO);
+ /// getShiftAmountOperand - Return the specified value casted to
+ /// the target's desired shift amount type.
+ SDValue getShiftAmountOperand(SDValue Op);
+
/// UpdateNodeOperands - *Mutate* the specified node in-place to have the
/// specified operands. If the resultant node already exists in the DAG,
/// this does not modify the specified node, instead it returns the node that
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
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);
/// 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 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,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT, SDValue Op1);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT, SDValue Op1,
+ SDValue Op2);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT,
SDValue Op1, SDValue Op2, SDValue Op3);
- SDNode *getTargetNode(unsigned Opcode, MVT VT,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, 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,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1, MVT VT2);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1, MVT VT2,
+ SDValue Op1);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1,
MVT VT2, SDValue Op1, SDValue Op2);
- SDNode *getTargetNode(unsigned Opcode, MVT VT1,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1,
MVT VT2, SDValue Op1, SDValue Op2, SDValue Op3);
- SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1, MVT VT2,
const SDValue *Ops, unsigned NumOps);
- SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1, MVT VT2, MVT VT3,
SDValue Op1, SDValue Op2);
- SDNode *getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, 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,
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1, MVT VT2, MVT VT3,
const SDValue *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl, MVT VT1, MVT VT2, MVT VT3,
+ MVT VT4, const SDValue *Ops, unsigned NumOps);
+ SDNode *getTargetNode(unsigned Opcode, DebugLoc dl,
+ 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.
/// 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,
/// 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 UpdateListener, which (if not null) is
+ /// 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.
///
+ /// These functions only replace all existing uses. It's possible that as
+ /// these replacements are being performed, CSE may cause the From node
+ /// to be given new uses. These new uses of From are left in place, and
+ /// not automatically transfered to To.
+ ///
void ReplaceAllUsesWith(SDValue From, SDValue Op,
DAGUpdateListener *UpdateListener = 0);
void ReplaceAllUsesWith(SDNode *From, SDNode *To,
unsigned Num,
DAGUpdateListener *UpdateListener = 0);
- /// 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);
+ /// 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.
case ISD::AND:
case ISD::OR:
case ISD::XOR:
- case ISD::ADDC:
+ case ISD::SADDO:
+ case ISD::UADDO:
+ case ISD::ADDC:
case ISD::ADDE: return true;
default: return false;
}
/// 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.
SDValue FoldSetCC(MVT VT, SDValue N1,
- SDValue N2, ISD::CondCode Cond);
-
+ SDValue N2, ISD::CondCode Cond, DebugLoc dl);
+
/// 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;
/// known to be the same type.
bool MaskedValueIsZero(SDValue Op, const APInt &Mask, unsigned Depth = 0)
const;
-
+
/// ComputeMaskedBits - Determine which of the bits specified in Mask are
/// known to be either zero or one and return them in the KnownZero/KnownOne
/// bitsets. This code only analyzes bits in Mask, in order to short-circuit
- /// processing. Targets can implement the computeMaskedBitsForTargetNode
+ /// processing. Targets can implement the computeMaskedBitsForTargetNode
/// method in the TargetLowering class to allow target nodes to be understood.
void ComputeMaskedBits(SDValue Op, const APInt &Mask, APInt &KnownZero,
APInt &KnownOne, unsigned Depth = 0) 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);
- SDNode *AddNonLeafNodeToCSEMaps(SDNode *N);
+ bool RemoveNodeFromCSEMaps(SDNode *N);
+ void AddModifiedNodeToCSEMaps(SDNode *N, DAGUpdateListener *UpdateListener);
SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op, void *&InsertPos);
SDNode *FindModifiedNodeSlot(SDNode *N, SDValue Op1, SDValue Op2,
void *&InsertPos);
void *&InsertPos);
void DeleteNodeNotInCSEMaps(SDNode *N);
+ void DeallocateNode(SDNode *N);
unsigned getMVTAlignment(MVT MemoryVT) const;
-
- // List of non-single value types.
+
+ void allnodes_clear();
+
+ /// VTList - List of non-single value types.
std::vector<SDVTList> VTList;
-
- // Maps to auto-CSE operations.
+
+ /// CondCodeNodes - Maps to auto-CSE operations.
std::vector<CondCodeSDNode*> CondCodeNodes;
std::vector<SDNode*> ValueTypeNodes;
projects / oota-llvm.git / blobdiff