#ifndef LLVM_CODEGEN_SELECTIONDAGNODES_H
#define LLVM_CODEGEN_SELECTIONDAGNODES_H
-#include "llvm/Value.h"
+#include "llvm/Constants.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/GraphTraits.h"
#include "llvm/ADT/iterator.h"
-#include "llvm/ADT/APFloat.h"
-#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/ilist_node.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/CodeGen/MachineMemOperand.h"
+#include "llvm/Support/Allocator.h"
+#include "llvm/Support/RecyclingAllocator.h"
#include "llvm/Support/DataTypes.h"
+#include "llvm/CodeGen/DebugLoc.h"
#include <cassert>
namespace llvm {
class MachineBasicBlock;
class MachineConstantPoolValue;
class SDNode;
+class Value;
template <typename T> struct DenseMapInfo;
template <typename T> struct simplify_type;
template <typename T> struct ilist_traits;
-template<typename NodeTy, typename Traits> class iplist;
-template<typename NodeTy> class ilist_iterator;
/// SDVTList - This represents a list of ValueType's that has been intern'd by
/// a SelectionDAG. Instances of this simple value class are returned by
namespace ISD {
//===--------------------------------------------------------------------===//
- /// ISD::NodeType enum - This enum defines all of the operators valid in a
- /// SelectionDAG.
+ /// ISD::NodeType enum - This enum defines the target-independent operators
+ /// for a SelectionDAG.
+ ///
+ /// Targets may also define target-dependent operator codes for SDNodes. For
+ /// example, on x86, these are the enum values in the X86ISD namespace.
+ /// Targets should aim to use target-independent operators to model their
+ /// instruction sets as much as possible, and only use target-dependent
+ /// operators when they have special requirements.
+ ///
+ /// Finally, during and after selection proper, SNodes may use special
+ /// operator codes that correspond directly with MachineInstr opcodes. These
+ /// are used to represent selected instructions. See the isMachineOpcode()
+ /// and getMachineOpcode() member functions of SDNode.
///
enum NodeType {
// DELETED_NODE - This is an illegal flag value that is used to catch
// EntryToken - This is the marker used to indicate the start of the region.
EntryToken,
- // Token factor - This node takes multiple tokens as input and produces a
+ // TokenFactor - This node takes multiple tokens as input and produces a
// single token result. This is used to represent the fact that the operand
// operators are independent of each other.
TokenFactor,
AssertSext, AssertZext,
// Various leaf nodes.
- STRING, BasicBlock, VALUETYPE, ARG_FLAGS, CONDCODE, Register,
+ BasicBlock, VALUETYPE, ARG_FLAGS, CONDCODE, Register,
Constant, ConstantFP,
GlobalAddress, GlobalTLSAddress, FrameIndex,
JumpTable, ConstantPool, ExternalSymbol,
///
FORMAL_ARGUMENTS,
- /// RV1, RV2...RVn, CHAIN = CALL(CHAIN, CC#, ISVARARG, ISTAILCALL, CALLEE,
+ /// RV1, RV2...RVn, CHAIN = CALL(CHAIN, CALLEE,
/// ARG0, FLAG0, ARG1, FLAG1, ... ARGn, FLAGn)
/// This node represents a fully general function call, before the legalizer
/// runs. This has one result value for each argument / flag pair, plus
/// Bit 10-26 - size of byval structures
/// Bits 31:27 - argument ABI alignment in the first argument piece and
/// alignment '1' in other argument pieces.
+ ///
+ /// CALL nodes use the CallSDNode subclass of SDNode, which
+ /// additionally carries information about the calling convention,
+ /// whether the call is varargs, and if it's marked as a tail call.
+ ///
CALL,
// EXTRACT_ELEMENT - This is used to get the lower or upper (determined by
- // a Constant, which is required to be operand #1) half of the integer value
- // specified as operand #0. This is only for use before legalization, for
- // values that will be broken into multiple registers.
+ // a Constant, which is required to be operand #1) half of the integer or
+ // float value specified as operand #0. This is only for use before
+ // legalization, for values that will be broken into multiple registers.
EXTRACT_ELEMENT,
// BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways. Given
// two values of the same integer value type, this produces a value twice as
// big. Like EXTRACT_ELEMENT, this can only be used before legalization.
BUILD_PAIR,
-
+
// MERGE_VALUES - This node takes multiple discrete operands and returns
// them all as its individual results. This nodes has exactly the same
// number of inputs and outputs, and is only valid before legalization.
// to them to be chained together for add and sub of arbitrarily large
// values.
ADDE, SUBE,
-
+
+ // RESULT, BOOL = [SU]ADDO(LHS, RHS) - Overflow-aware nodes for addition.
+ // These nodes take two operands: the normal LHS and RHS to the add. They
+ // produce two results: the normal result of the add, and a boolean that
+ // indicates if an overflow occured (*not* a flag, because it may be stored
+ // to memory, etc.). If the type of the boolean is not i1 then the high
+ // bits conform to getBooleanContents.
+ // These nodes are generated from the llvm.[su]add.with.overflow intrinsics.
+ SADDO, UADDO,
+
+ // Same for subtraction
+ SSUBO, USUBO,
+
+ // Same for multiplication
+ SMULO, UMULO,
+
// Simple binary floating point operators.
FADD, FSUB, FMUL, FDIV, FREM,
// Counting operators
CTTZ, CTLZ, CTPOP,
- // Select(COND, TRUEVAL, FALSEVAL)
- SELECT,
-
+ // Select(COND, TRUEVAL, FALSEVAL). If the type of the boolean COND is not
+ // i1 then the high bits must conform to getBooleanContents.
+ SELECT,
+
// Select with condition operator - This selects between a true value and
// a false value (ops #2 and #3) based on the boolean result of comparing
// the lhs and rhs (ops #0 and #1) of a conditional expression with the
// condition code in op #4, a CondCodeSDNode.
SELECT_CC,
- // SetCC operator - This evaluates to a boolean (i1) true value if the
- // condition is true. The operands to this are the left and right operands
- // to compare (ops #0, and #1) and the condition code to compare them with
- // (op #2) as a CondCodeSDNode.
+ // SetCC operator - This evaluates to a true value iff the condition is
+ // true. If the result value type is not i1 then the high bits conform
+ // to getBooleanContents. The operands to this are the left and right
+ // operands to compare (ops #0, and #1) and the condition code to compare
+ // them with (op #2) as a CondCodeSDNode.
SETCC,
// Vector SetCC operator - This evaluates to a vector of integer elements
// conversions, but that is a noop, deleted by getNode().
BIT_CONVERT,
- // FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW - Perform unary floating point
- // negation, absolute value, square root, sine and cosine, powi, and pow
- // operations.
+ // CONVERT_RNDSAT - This operator is used to support various conversions
+ // between various types (float, signed, unsigned and vectors of those
+ // types) with rounding and saturation. NOTE: Avoid using this operator as
+ // most target don't support it and the operator might be removed in the
+ // future. It takes the following arguments:
+ // 0) value
+ // 1) dest type (type to convert to)
+ // 2) src type (type to convert from)
+ // 3) rounding imm
+ // 4) saturation imm
+ // 5) ISD::CvtCode indicating the type of conversion to do
+ CONVERT_RNDSAT,
+
+ // FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW,
+ // FLOG, FLOG2, FLOG10, FEXP, FEXP2,
+ // FCEIL, FTRUNC, FRINT, FNEARBYINT, FFLOOR - Perform various unary floating
+ // point operations. These are inspired by libm.
FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW,
+ FLOG, FLOG2, FLOG10, FEXP, FEXP2,
+ FCEIL, FTRUNC, FRINT, FNEARBYINT, FFLOOR,
// LOAD and STORE have token chains as their first operand, then the same
// operands as an LLVM load/store instruction, then an offset node that
// BR_JT - Jumptable branch. The first operand is the chain, the second
// is the jumptable index, the last one is the jumptable entry index.
BR_JT,
-
- // BRCOND - Conditional branch. The first operand is the chain,
- // the second is the condition, the third is the block to branch
- // to if the condition is true.
+
+ // BRCOND - Conditional branch. The first operand is the chain, the
+ // second is the condition, the third is the block to branch to if the
+ // condition is true. If the type of the condition is not i1, then the
+ // high bits must conform to getBooleanContents.
BRCOND,
// BR_CC - Conditional branch. The behavior is like that of SELECT_CC, in
// RET - Return from function. The first operand is the chain,
// and any subsequent operands are pairs of return value and return value
- // signness for the function. This operation can have variable number of
- // operands.
+ // attributes (see CALL for description of attributes) for the function.
+ // This operation can have variable number of operands.
RET,
// INLINEASM - Represents an inline asm block. This node always has two
// Operand #last: Optional, an incoming flag.
INLINEASM,
- // LABEL - Represents a label in mid basic block used to track
- // locations needed for debug and exception handling tables. This node
- // returns a chain.
- // Operand #0 : input chain.
- // Operand #1 : module unique number use to identify the label.
- // Operand #2 : 0 indicates a debug label (e.g. stoppoint), 1 indicates
- // a EH label, 2 indicates unknown label type.
- LABEL,
+ // DBG_LABEL, EH_LABEL - Represents a label in mid basic block used to track
+ // locations needed for debug and exception handling tables. These nodes
+ // take a chain as input and return a chain.
+ DBG_LABEL,
+ EH_LABEL,
// DECLARE - Represents a llvm.dbg.declare intrinsic. It's used to track
// local variable declarations for debugging information. First operand is
// HANDLENODE node - Used as a handle for various purposes.
HANDLENODE,
- // LOCATION - This node is used to represent a source location for debug
- // info. It takes token chain as input, then a line number, then a column
- // number, then a filename, then a working dir. It produces a token chain
- // as output.
- LOCATION,
+ // DBG_STOPPOINT - This node is used to represent a source location for
+ // debug info. It takes token chain as input, and carries a line number,
+ // column number, and a pointer to a CompileUnit object identifying
+ // the containing compilation unit. It produces a token chain as output.
+ DBG_STOPPOINT,
// DEBUG_LOC - This node is used to represent source line information
// embedded in the code. It takes a token chain as input, then a line
// the return is always the original value in *ptr
ATOMIC_CMP_SWAP,
- // Val, OUTCHAIN = ATOMIC_LOAD_ADD(INCHAIN, ptr, amt)
- // this corresponds to the atomic.las intrinsic.
- // *ptr + amt is stored to *ptr atomically.
- // the return is always the original value in *ptr
- ATOMIC_LOAD_ADD,
-
// Val, OUTCHAIN = ATOMIC_SWAP(INCHAIN, ptr, amt)
// this corresponds to the atomic.swap intrinsic.
// amt is stored to *ptr atomically.
// the return is always the original value in *ptr
ATOMIC_SWAP,
- // Val, OUTCHAIN = ATOMIC_LOAD_SUB(INCHAIN, ptr, amt)
- // this corresponds to the atomic.lss intrinsic.
- // *ptr - amt is stored to *ptr atomically.
- // the return is always the original value in *ptr
- ATOMIC_LOAD_SUB,
-
- // Val, OUTCHAIN = ATOMIC_L[OpName]S(INCHAIN, ptr, amt)
- // this corresponds to the atomic.[OpName] intrinsic.
+ // Val, OUTCHAIN = ATOMIC_LOAD_[OpName](INCHAIN, ptr, amt)
+ // this corresponds to the atomic.load.[OpName] intrinsic.
// op(*ptr, amt) is stored to *ptr atomically.
// the return is always the original value in *ptr
+ ATOMIC_LOAD_ADD,
+ ATOMIC_LOAD_SUB,
ATOMIC_LOAD_AND,
ATOMIC_LOAD_OR,
ATOMIC_LOAD_XOR,
bool isScalarToVector(const SDNode *N);
/// isDebugLabel - Return true if the specified node represents a debug
- /// label (i.e. ISD::LABEL or TargetInstrInfo::LABEL node and third operand
- /// is 0).
+ /// label (i.e. ISD::DBG_LABEL or TargetInstrInfo::DBG_LABEL node).
bool isDebugLabel(const SDNode *N);
//===--------------------------------------------------------------------===//
EXTLOAD,
SEXTLOAD,
ZEXTLOAD,
- LAST_LOADX_TYPE
+ LAST_LOADEXT_TYPE
};
//===--------------------------------------------------------------------===//
/// function returns SETCC_INVALID if it is not possible to represent the
/// resultant comparison.
CondCode getSetCCAndOperation(CondCode Op1, CondCode Op2, bool isInteger);
+
+ //===--------------------------------------------------------------------===//
+ /// CvtCode enum - This enum defines the various converts CONVERT_RNDSAT
+ /// supports.
+ enum CvtCode {
+ CVT_FF, // Float from Float
+ CVT_FS, // Float from Signed
+ CVT_FU, // Float from Unsigned
+ CVT_SF, // Signed from Float
+ CVT_UF, // Unsigned from Float
+ CVT_SS, // Signed from Signed
+ CVT_SU, // Signed from Unsigned
+ CVT_US, // Unsigned from Signed
+ CVT_UU, // Unsigned from Unsigned
+ CVT_INVALID // Marker - Invalid opcode
+ };
} // end llvm::ISD namespace
//===----------------------------------------------------------------------===//
-/// SDOperand - Unlike LLVM values, Selection DAG nodes may return multiple
+/// SDValue - Unlike LLVM values, Selection DAG nodes may return multiple
/// values as the result of a computation. Many nodes return multiple values,
/// from loads (which define a token and a return value) to ADDC (which returns
/// a result and a carry value), to calls (which may return an arbitrary number
///
/// As such, each use of a SelectionDAG computation must indicate the node that
/// computes it as well as which return value to use from that node. This pair
-/// of information is represented with the SDOperand value type.
+/// of information is represented with the SDValue value type.
///
-class SDOperand {
-public:
- SDNode *Val; // The node defining the value we are using.
+class SDValue {
+ SDNode *Node; // The node defining the value we are using.
unsigned ResNo; // Which return value of the node we are using.
+public:
+ SDValue() : Node(0), ResNo(0) {}
+ SDValue(SDNode *node, unsigned resno) : Node(node), ResNo(resno) {}
- SDOperand() : Val(0), ResNo(0) {}
- SDOperand(SDNode *val, unsigned resno) : Val(val), ResNo(resno) {}
+ /// get the index which selects a specific result in the SDNode
+ unsigned getResNo() const { return ResNo; }
- bool operator==(const SDOperand &O) const {
- return Val == O.Val && ResNo == O.ResNo;
+ /// get the SDNode which holds the desired result
+ SDNode *getNode() const { return Node; }
+
+ /// set the SDNode
+ void setNode(SDNode *N) { Node = N; }
+
+ bool operator==(const SDValue &O) const {
+ return Node == O.Node && ResNo == O.ResNo;
}
- bool operator!=(const SDOperand &O) const {
+ bool operator!=(const SDValue &O) const {
return !operator==(O);
}
- bool operator<(const SDOperand &O) const {
- return Val < O.Val || (Val == O.Val && ResNo < O.ResNo);
+ bool operator<(const SDValue &O) const {
+ return Node < O.Node || (Node == O.Node && ResNo < O.ResNo);
}
- SDOperand getValue(unsigned R) const {
- return SDOperand(Val, R);
+ SDValue getValue(unsigned R) const {
+ return SDValue(Node, R);
}
// isOperandOf - Return true if this node is an operand of N.
// Forwarding methods - These forward to the corresponding methods in SDNode.
inline unsigned getOpcode() const;
inline unsigned getNumOperands() const;
- inline const SDOperand &getOperand(unsigned i) const;
+ inline const SDValue &getOperand(unsigned i) const;
inline uint64_t getConstantOperandVal(unsigned i) const;
inline bool isTargetOpcode() const;
- inline unsigned getTargetOpcode() const;
+ inline bool isMachineOpcode() const;
+ inline unsigned getMachineOpcode() const;
+ inline const DebugLoc getDebugLoc() const;
/// reachesChainWithoutSideEffects - Return true if this operand (which must
/// side-effecting instructions. In practice, this looks through token
/// factors and non-volatile loads. In order to remain efficient, this only
/// looks a couple of nodes in, it does not do an exhaustive search.
- bool reachesChainWithoutSideEffects(SDOperand Dest,
+ bool reachesChainWithoutSideEffects(SDValue Dest,
unsigned Depth = 2) const;
- /// hasOneUse - Return true if there is exactly one operation using this
- /// result value of the defining operator.
- inline bool hasOneUse() const;
-
- /// use_empty - Return true if there are no operations using this
- /// result value of the defining operator.
+ /// use_empty - Return true if there are no nodes using value ResNo
+ /// of Node.
+ ///
inline bool use_empty() const;
+
+ /// hasOneUse - Return true if there is exactly one node using value
+ /// ResNo of Node.
+ ///
+ inline bool hasOneUse() const;
};
-template<> struct DenseMapInfo<SDOperand> {
- static inline SDOperand getEmptyKey() {
- return SDOperand((SDNode*)-1, -1U);
+template<> struct DenseMapInfo<SDValue> {
+ static inline SDValue getEmptyKey() {
+ return SDValue((SDNode*)-1, -1U);
}
- static inline SDOperand getTombstoneKey() {
- return SDOperand((SDNode*)-1, 0);
+ static inline SDValue getTombstoneKey() {
+ return SDValue((SDNode*)-1, 0);
}
- static unsigned getHashValue(const SDOperand &Val) {
- return ((unsigned)((uintptr_t)Val.Val >> 4) ^
- (unsigned)((uintptr_t)Val.Val >> 9)) + Val.ResNo;
+ static unsigned getHashValue(const SDValue &Val) {
+ return ((unsigned)((uintptr_t)Val.getNode() >> 4) ^
+ (unsigned)((uintptr_t)Val.getNode() >> 9)) + Val.getResNo();
}
- static bool isEqual(const SDOperand &LHS, const SDOperand &RHS) {
+ static bool isEqual(const SDValue &LHS, const SDValue &RHS) {
return LHS == RHS;
}
static bool isPod() { return true; }
};
/// simplify_type specializations - Allow casting operators to work directly on
-/// SDOperands as if they were SDNode*'s.
-template<> struct simplify_type<SDOperand> {
+/// SDValues as if they were SDNode*'s.
+template<> struct simplify_type<SDValue> {
typedef SDNode* SimpleType;
- static SimpleType getSimplifiedValue(const SDOperand &Val) {
- return static_cast<SimpleType>(Val.Val);
+ static SimpleType getSimplifiedValue(const SDValue &Val) {
+ return static_cast<SimpleType>(Val.getNode());
}
};
-template<> struct simplify_type<const SDOperand> {
+template<> struct simplify_type<const SDValue> {
typedef SDNode* SimpleType;
- static SimpleType getSimplifiedValue(const SDOperand &Val) {
- return static_cast<SimpleType>(Val.Val);
+ static SimpleType getSimplifiedValue(const SDValue &Val) {
+ return static_cast<SimpleType>(Val.getNode());
}
};
-/// SDUse - Represents a use of the SDNode referred by
-/// the SDOperand.
+/// SDUse - Represents a use of a SDNode. This class holds an SDValue,
+/// which records the SDNode being used and the result number, a
+/// pointer to the SDNode using the value, and Next and Prev pointers,
+/// which link together all the uses of an SDNode.
+///
class SDUse {
- SDOperand Operand;
- /// User - Parent node of this operand.
- SDNode *User;
- /// Prev, next - Pointers to the uses list of the SDNode referred by
+ /// Val - The value being used.
+ SDValue Val;
+ /// User - The user of this value.
+ SDNode *User;
+ /// Prev, Next - Pointers to the uses list of the SDNode referred by
/// this operand.
SDUse **Prev, *Next;
-public:
- friend class SDNode;
- SDUse(): Operand(), User(NULL), Prev(NULL), Next(NULL) {}
- SDUse(SDNode *val, unsigned resno) :
- Operand(val,resno), User(NULL), Prev(NULL), Next(NULL) {}
-
- SDUse& operator= (const SDOperand& Op) {
- Operand = Op;
- Next = NULL;
- Prev = NULL;
- return *this;
- }
+ SDUse(const SDUse &U); // Do not implement
+ void operator=(const SDUse &U); // Do not implement
- SDUse& operator= (const SDUse& Op) {
- Operand = Op;
- Next = NULL;
- Prev = NULL;
- return *this;
- }
+public:
+ SDUse() : Val(), User(NULL), Prev(NULL), Next(NULL) {}
- SDUse * getNext() { return Next; }
+ /// Normally SDUse will just implicitly convert to an SDValue that it holds.
+ operator const SDValue&() const { return Val; }
+ /// If implicit conversion to SDValue doesn't work, the get() method returns
+ /// the SDValue.
+ const SDValue &get() const { return Val; }
+
+ /// getUser - This returns the SDNode that contains this Use.
SDNode *getUser() { return User; }
- void setUser(SDNode *p) { User = p; }
-
- operator SDOperand() const { return Operand; }
+ /// getNext - Get the next SDUse in the use list.
+ SDUse *getNext() const { return Next; }
- const SDOperand& getSDOperand() const { return Operand; }
+ /// getNode - Convenience function for get().getNode().
+ SDNode *getNode() const { return Val.getNode(); }
+ /// getResNo - Convenience function for get().getResNo().
+ unsigned getResNo() const { return Val.getResNo(); }
+ /// getValueType - Convenience function for get().getValueType().
+ MVT getValueType() const { return Val.getValueType(); }
- SDNode* &getVal () { return Operand.Val; }
-
- bool operator==(const SDOperand &O) const {
- return Operand == O;
+ /// operator== - Convenience function for get().operator==
+ bool operator==(const SDValue &V) const {
+ return Val == V;
}
-
- bool operator!=(const SDOperand &O) const {
- return !(Operand == O);
+
+ /// operator!= - Convenience function for get().operator!=
+ bool operator!=(const SDValue &V) const {
+ return Val != V;
}
- bool operator<(const SDOperand &O) const {
- return Operand < O;
+ /// operator< - Convenience function for get().operator<
+ bool operator<(const SDValue &V) const {
+ return Val < V;
}
-protected:
+private:
+ friend class SelectionDAG;
+ friend class SDNode;
+
+ void setUser(SDNode *p) { User = p; }
+
+ /// set - Remove this use from its existing use list, assign it the
+ /// given value, and add it to the new value's node's use list.
+ inline void set(const SDValue &V);
+ /// setInitial - like set, but only supports initializing a newly-allocated
+ /// SDUse with a non-null value.
+ inline void setInitial(const SDValue &V);
+ /// setNode - like set, but only sets the Node portion of the value,
+ /// leaving the ResNo portion unmodified.
+ inline void setNode(SDNode *N);
+
void addToList(SDUse **List) {
Next = *List;
if (Next) Next->Prev = &Next;
}
};
-
/// simplify_type specializations - Allow casting operators to work directly on
-/// SDOperands as if they were SDNode*'s.
+/// SDValues as if they were SDNode*'s.
template<> struct simplify_type<SDUse> {
typedef SDNode* SimpleType;
static SimpleType getSimplifiedValue(const SDUse &Val) {
- return static_cast<SimpleType>(Val.getSDOperand().Val);
+ return static_cast<SimpleType>(Val.getNode());
}
};
template<> struct simplify_type<const SDUse> {
typedef SDNode* SimpleType;
static SimpleType getSimplifiedValue(const SDUse &Val) {
- return static_cast<SimpleType>(Val.getSDOperand().Val);
+ return static_cast<SimpleType>(Val.getNode());
}
};
-/// SDOperandPtr - A helper SDOperand pointer class, that can handle
-/// arrays of SDUse and arrays of SDOperand objects. This is required
-/// in many places inside the SelectionDAG.
-///
-class SDOperandPtr {
- const SDOperand *ptr; // The pointer to the SDOperand object
- int object_size; // The size of the object containg the SDOperand
-public:
- SDOperandPtr() : ptr(0), object_size(0) {}
-
- SDOperandPtr(SDUse * use_ptr) {
- ptr = &use_ptr->getSDOperand();
- object_size = (int)sizeof(SDUse);
- }
-
- SDOperandPtr(const SDOperand * op_ptr) {
- ptr = op_ptr;
- object_size = (int)sizeof(SDOperand);
- }
-
- const SDOperand operator *() { return *ptr; }
- const SDOperand *operator ->() { return ptr; }
- SDOperandPtr operator ++ () {
- ptr = (SDOperand*)((char *)ptr + object_size);
- return *this;
- }
-
- SDOperandPtr operator ++ (int) {
- SDOperandPtr tmp = *this;
- ptr = (SDOperand*)((char *)ptr + object_size);
- return tmp;
- }
-
- SDOperand operator[] (int idx) const {
- return *(SDOperand*)((char*) ptr + object_size * idx);
- }
-};
-
/// SDNode - Represents one node in the SelectionDAG.
///
-class SDNode : public FoldingSetNode {
+class SDNode : public FoldingSetNode, public ilist_node<SDNode> {
private:
/// NodeType - The operation that this node performs.
///
- unsigned short NodeType;
+ short NodeType;
/// OperandsNeedDelete - This is true if OperandList was new[]'d. If true,
/// then they will be delete[]'d when the node is destroyed.
- bool OperandsNeedDelete : 1;
+ unsigned short OperandsNeedDelete : 1;
+protected:
+ /// SubclassData - This member is defined by this class, but is not used for
+ /// anything. Subclasses can use it to hold whatever state they find useful.
+ /// This field is initialized to zero by the ctor.
+ unsigned short SubclassData : 15;
+
+private:
/// NodeId - Unique id per SDNode in the DAG.
int NodeId;
/// define multiple values simultaneously.
const MVT *ValueList;
+ /// UseList - List of uses for this SDNode.
+ SDUse *UseList;
+
/// NumOperands/NumValues - The number of entries in the Operand/Value list.
unsigned short NumOperands, NumValues;
-
- /// UsesSize - The size of the uses list.
- unsigned UsesSize;
- /// Uses - List of uses for this SDNode.
- SDUse *Uses;
+ /// debugLoc - source line information.
+ DebugLoc debugLoc;
- /// Prev/Next pointers - These pointers form the linked list of of the
- /// AllNodes list in the current DAG.
- SDNode *Prev, *Next;
- friend struct ilist_traits<SDNode>;
+ /// getValueTypeList - Return a pointer to the specified value type.
+ static const MVT *getValueTypeList(MVT VT);
- /// addUse - add SDUse to the list of uses.
- void addUse(SDUse &U) { U.addToList(&Uses); }
+ friend class SelectionDAG;
+ friend struct ilist_traits<SDNode>;
- // Out-of-line virtual method to give class a home.
- virtual void ANCHOR();
public:
- virtual ~SDNode() {
- assert(NumOperands == 0 && "Operand list not cleared before deletion");
- NodeType = ISD::DELETED_NODE;
- }
-
//===--------------------------------------------------------------------===//
// Accessors
//
- unsigned getOpcode() const { return NodeType; }
+
+ /// getOpcode - Return the SelectionDAG opcode value for this node. For
+ /// pre-isel nodes (those for which isMachineOpcode returns false), these
+ /// are the opcode values in the ISD and <target>ISD namespaces. For
+ /// post-isel opcodes, see getMachineOpcode.
+ unsigned getOpcode() const { return (unsigned short)NodeType; }
+
+ /// isTargetOpcode - Test if this node has a target-specific opcode (in the
+ /// <target>ISD namespace).
bool isTargetOpcode() const { return NodeType >= ISD::BUILTIN_OP_END; }
- unsigned getTargetOpcode() const {
- assert(isTargetOpcode() && "Not a target opcode!");
- return NodeType - ISD::BUILTIN_OP_END;
+
+ /// isMachineOpcode - Test if this node has a post-isel opcode, directly
+ /// corresponding to a MachineInstr opcode.
+ bool isMachineOpcode() const { return NodeType < 0; }
+
+ /// getMachineOpcode - This may only be called if isMachineOpcode returns
+ /// true. It returns the MachineInstr opcode value that the node's opcode
+ /// corresponds to.
+ unsigned getMachineOpcode() const {
+ assert(isMachineOpcode() && "Not a MachineInstr opcode!");
+ return ~NodeType;
}
- size_t use_size() const { return UsesSize; }
- bool use_empty() const { return Uses == NULL; }
- bool hasOneUse() const { return use_size() == 1; }
+ /// use_empty - Return true if there are no uses of this node.
+ ///
+ bool use_empty() const { return UseList == NULL; }
+
+ /// hasOneUse - Return true if there is exactly one use of this node.
+ ///
+ bool hasOneUse() const {
+ return !use_empty() && next(use_begin()) == use_end();
+ }
+
+ /// use_size - Return the number of uses of this node. This method takes
+ /// time proportional to the number of uses.
+ ///
+ size_t use_size() const { return std::distance(use_begin(), use_end()); }
/// getNodeId - Return the unique node id.
///
/// setNodeId - Set unique node id.
void setNodeId(int Id) { NodeId = Id; }
+ /// getDebugLoc - Return the source location info.
+ const DebugLoc getDebugLoc() const { return debugLoc; }
+
+ /// setDebugLoc - Set source location info. Try to avoid this, putting
+ /// it in the constructor is preferable.
+ void setDebugLoc(const DebugLoc dl) { debugLoc = dl; }
+
/// use_iterator - This class provides iterator support for SDUse
/// operands that use a specific SDNode.
class use_iterator
use_iterator tmp = *this; ++*this; return tmp;
}
-
- /// getOperandNum - Retrive a number of a current operand.
- unsigned getOperandNum() const {
+ /// Retrieve a pointer to the current user node.
+ SDNode *operator*() const {
assert(Op && "Cannot dereference end iterator!");
- return (unsigned)(Op - Op->getUser()->OperandList);
+ return Op->getUser();
}
- /// Retrieve a reference to the current operand.
- SDUse &operator*() const {
- assert(Op && "Cannot dereference end iterator!");
- return *Op;
- }
+ SDNode *operator->() const { return operator*(); }
- /// Retrieve a pointer to the current operand.
- SDUse *operator->() const {
+ SDUse &getUse() const { return *Op; }
+
+ /// getOperandNo - Retrieve the operand # of this use in its user.
+ ///
+ unsigned getOperandNo() const {
assert(Op && "Cannot dereference end iterator!");
- return Op;
+ return (unsigned)(Op - Op->getUser()->OperandList);
}
};
/// use_begin/use_end - Provide iteration support to walk over all uses
/// of an SDNode.
- use_iterator use_begin(SDNode *node) const {
- return use_iterator(node->Uses);
- }
-
use_iterator use_begin() const {
- return use_iterator(Uses);
+ return use_iterator(UseList);
}
static use_iterator use_end() { return use_iterator(0); }
/// value. This method ignores uses of other values defined by this operation.
bool hasAnyUseOfValue(unsigned Value) const;
- /// isOnlyUseOf - Return true if this node is the only use of N.
+ /// isOnlyUserOf - Return true if this node is the only use of N.
///
- bool isOnlyUseOf(SDNode *N) const;
+ bool isOnlyUserOf(SDNode *N) const;
/// isOperandOf - Return true if this node is an operand of N.
///
/// ConstantSDNode operand.
uint64_t getConstantOperandVal(unsigned Num) const;
- const SDOperand &getOperand(unsigned Num) const {
+ const SDValue &getOperand(unsigned Num) const {
assert(Num < NumOperands && "Invalid child # of SDNode!");
- return OperandList[Num].getSDOperand();
+ return OperandList[Num];
}
typedef SDUse* op_iterator;
op_iterator op_begin() const { return OperandList; }
op_iterator op_end() const { return OperandList+NumOperands; }
-
SDVTList getVTList() const {
SDVTList X = { ValueList, NumValues };
return X;
};
-
+
+ /// getFlaggedNode - If this node has a flag operand, return the node
+ /// to which the flag operand points. Otherwise return NULL.
+ SDNode *getFlaggedNode() const {
+ if (getNumOperands() != 0 &&
+ getOperand(getNumOperands()-1).getValueType() == MVT::Flag)
+ return getOperand(getNumOperands()-1).getNode();
+ return 0;
+ }
+
+ // If this is a pseudo op, like copyfromreg, look to see if there is a
+ // real target node flagged to it. If so, return the target node.
+ const SDNode *getFlaggedMachineNode() const {
+ const SDNode *FoundNode = this;
+
+ // Climb up flag edges until a machine-opcode node is found, or the
+ // end of the chain is reached.
+ while (!FoundNode->isMachineOpcode()) {
+ const SDNode *N = FoundNode->getFlaggedNode();
+ if (!N) break;
+ FoundNode = N;
+ }
+
+ return FoundNode;
+ }
+
/// getNumValues - Return the number of values defined/returned by this
/// operator.
///
///
std::string getOperationName(const SelectionDAG *G = 0) const;
static const char* getIndexedModeName(ISD::MemIndexedMode AM);
+ void print_types(raw_ostream &OS, const SelectionDAG *G) const;
+ void print_details(raw_ostream &OS, const SelectionDAG *G) const;
+ void print(raw_ostream &OS, const SelectionDAG *G = 0) const;
+ void printr(raw_ostream &OS, const SelectionDAG *G = 0) const;
void dump() const;
+ void dumpr() const;
void dump(const SelectionDAG *G) const;
static bool classof(const SDNode *) { return true; }
/// Profile - Gather unique data for the node.
///
- void Profile(FoldingSetNodeID &ID);
+ void Profile(FoldingSetNodeID &ID) const;
-protected:
- friend class SelectionDAG;
-
- /// getValueTypeList - Return a pointer to the specified value type.
+ /// addUse - This method should only be used by the SDUse class.
///
- static const MVT *getValueTypeList(MVT VT);
+ void addUse(SDUse &U) { U.addToList(&UseList); }
+
+protected:
static SDVTList getSDVTList(MVT VT) {
SDVTList Ret = { getValueTypeList(VT), 1 };
return Ret;
}
- SDNode(unsigned Opc, SDVTList VTs, const SDOperand *Ops, unsigned NumOps)
- : NodeType(Opc), NodeId(-1), UsesSize(0), Uses(NULL) {
- OperandsNeedDelete = true;
- NumOperands = NumOps;
- OperandList = NumOps ? new SDUse[NumOperands] : 0;
-
+ SDNode(unsigned Opc, const DebugLoc dl, SDVTList VTs, const SDValue *Ops,
+ unsigned NumOps)
+ : NodeType(Opc), OperandsNeedDelete(true), SubclassData(0),
+ NodeId(-1),
+ OperandList(NumOps ? new SDUse[NumOps] : 0),
+ ValueList(VTs.VTs), UseList(NULL),
+ NumOperands(NumOps), NumValues(VTs.NumVTs),
+ debugLoc(dl) {
for (unsigned i = 0; i != NumOps; ++i) {
- OperandList[i] = Ops[i];
OperandList[i].setUser(this);
- Ops[i].Val->addUse(OperandList[i]);
- ++Ops[i].Val->UsesSize;
+ OperandList[i].setInitial(Ops[i]);
}
-
- ValueList = VTs.VTs;
- NumValues = VTs.NumVTs;
- Prev = 0; Next = 0;
}
- SDNode(unsigned Opc, SDVTList VTs, SDOperandPtr Ops, unsigned NumOps)
- : NodeType(Opc), NodeId(-1), UsesSize(0), Uses(NULL) {
- OperandsNeedDelete = true;
- NumOperands = NumOps;
- OperandList = NumOps ? new SDUse[NumOperands] : 0;
-
- for (unsigned i = 0; i != NumOps; ++i) {
- OperandList[i] = Ops[i];
- OperandList[i].setUser(this);
- Ops[i].Val->addUse(OperandList[i]);
- ++Ops[i].Val->UsesSize;
- }
-
- ValueList = VTs.VTs;
- NumValues = VTs.NumVTs;
- Prev = 0; Next = 0;
+ /// This constructor adds no operands itself; operands can be
+ /// set later with InitOperands.
+ SDNode(unsigned Opc, const DebugLoc dl, SDVTList VTs)
+ : NodeType(Opc), OperandsNeedDelete(false), SubclassData(0),
+ NodeId(-1), OperandList(0), ValueList(VTs.VTs), UseList(NULL),
+ NumOperands(0), NumValues(VTs.NumVTs),
+ debugLoc(dl) {}
+
+ /// InitOperands - Initialize the operands list of this with 1 operand.
+ void InitOperands(SDUse *Ops, const SDValue &Op0) {
+ Ops[0].setUser(this);
+ Ops[0].setInitial(Op0);
+ NumOperands = 1;
+ OperandList = Ops;
}
- SDNode(unsigned Opc, SDVTList VTs)
- : NodeType(Opc), NodeId(-1), UsesSize(0), Uses(NULL) {
- OperandsNeedDelete = false; // Operands set with InitOperands.
- NumOperands = 0;
- OperandList = 0;
- ValueList = VTs.VTs;
- NumValues = VTs.NumVTs;
- Prev = 0; Next = 0;
+ /// InitOperands - Initialize the operands list of this with 2 operands.
+ void InitOperands(SDUse *Ops, const SDValue &Op0, const SDValue &Op1) {
+ Ops[0].setUser(this);
+ Ops[0].setInitial(Op0);
+ Ops[1].setUser(this);
+ Ops[1].setInitial(Op1);
+ NumOperands = 2;
+ OperandList = Ops;
}
-
- /// InitOperands - Initialize the operands list of this node with the
- /// specified values, which are part of the node (thus they don't need to be
- /// copied in or allocated).
- void InitOperands(SDUse *Ops, unsigned NumOps) {
- assert(OperandList == 0 && "Operands already set!");
- NumOperands = NumOps;
+
+ /// InitOperands - Initialize the operands list of this with 3 operands.
+ void InitOperands(SDUse *Ops, const SDValue &Op0, const SDValue &Op1,
+ const SDValue &Op2) {
+ Ops[0].setUser(this);
+ Ops[0].setInitial(Op0);
+ Ops[1].setUser(this);
+ Ops[1].setInitial(Op1);
+ Ops[2].setUser(this);
+ Ops[2].setInitial(Op2);
+ NumOperands = 3;
OperandList = Ops;
- UsesSize = 0;
- Uses = NULL;
-
- for (unsigned i = 0; i != NumOps; ++i) {
- OperandList[i].setUser(this);
- Ops[i].getVal()->addUse(OperandList[i]);
- ++Ops[i].getVal()->UsesSize;
- }
}
-
- /// MorphNodeTo - This frees the operands of the current node, resets the
- /// opcode, types, and operands to the specified value. This should only be
- /// used by the SelectionDAG class.
- void MorphNodeTo(unsigned Opc, SDVTList L,
- SDOperandPtr Ops, unsigned NumOps);
-
- void addUser(unsigned i, SDNode *User) {
- assert(User->OperandList[i].getUser() && "Node without parent");
- addUse(User->OperandList[i]);
- ++UsesSize;
+
+ /// InitOperands - Initialize the operands list of this with 4 operands.
+ void InitOperands(SDUse *Ops, const SDValue &Op0, const SDValue &Op1,
+ const SDValue &Op2, const SDValue &Op3) {
+ Ops[0].setUser(this);
+ Ops[0].setInitial(Op0);
+ Ops[1].setUser(this);
+ Ops[1].setInitial(Op1);
+ Ops[2].setUser(this);
+ Ops[2].setInitial(Op2);
+ Ops[3].setUser(this);
+ Ops[3].setInitial(Op3);
+ NumOperands = 4;
+ OperandList = Ops;
}
- void removeUser(unsigned i, SDNode *User) {
- assert(User->OperandList[i].getUser() && "Node without parent");
- SDUse &Op = User->OperandList[i];
- Op.removeFromList();
- --UsesSize;
+ /// InitOperands - Initialize the operands list of this with N operands.
+ void InitOperands(SDUse *Ops, const SDValue *Vals, unsigned N) {
+ for (unsigned i = 0; i != N; ++i) {
+ Ops[i].setUser(this);
+ Ops[i].setInitial(Vals[i]);
+ }
+ NumOperands = N;
+ OperandList = Ops;
}
+
+ /// DropOperands - Release the operands and set this node to have
+ /// zero operands.
+ void DropOperands();
};
-// Define inline functions from the SDOperand class.
+// Define inline functions from the SDValue class.
-inline unsigned SDOperand::getOpcode() const {
- return Val->getOpcode();
+inline unsigned SDValue::getOpcode() const {
+ return Node->getOpcode();
+}
+inline MVT SDValue::getValueType() const {
+ return Node->getValueType(ResNo);
+}
+inline unsigned SDValue::getNumOperands() const {
+ return Node->getNumOperands();
+}
+inline const SDValue &SDValue::getOperand(unsigned i) const {
+ return Node->getOperand(i);
+}
+inline uint64_t SDValue::getConstantOperandVal(unsigned i) const {
+ return Node->getConstantOperandVal(i);
}
-inline MVT SDOperand::getValueType() const {
- return Val->getValueType(ResNo);
+inline bool SDValue::isTargetOpcode() const {
+ return Node->isTargetOpcode();
}
-inline unsigned SDOperand::getNumOperands() const {
- return Val->getNumOperands();
+inline bool SDValue::isMachineOpcode() const {
+ return Node->isMachineOpcode();
}
-inline const SDOperand &SDOperand::getOperand(unsigned i) const {
- return Val->getOperand(i);
+inline unsigned SDValue::getMachineOpcode() const {
+ return Node->getMachineOpcode();
}
-inline uint64_t SDOperand::getConstantOperandVal(unsigned i) const {
- return Val->getConstantOperandVal(i);
+inline bool SDValue::use_empty() const {
+ return !Node->hasAnyUseOfValue(ResNo);
}
-inline bool SDOperand::isTargetOpcode() const {
- return Val->isTargetOpcode();
+inline bool SDValue::hasOneUse() const {
+ return Node->hasNUsesOfValue(1, ResNo);
}
-inline unsigned SDOperand::getTargetOpcode() const {
- return Val->getTargetOpcode();
+inline const DebugLoc SDValue::getDebugLoc() const {
+ return Node->getDebugLoc();
}
-inline bool SDOperand::hasOneUse() const {
- return Val->hasNUsesOfValue(1, ResNo);
+
+// Define inline functions from the SDUse class.
+
+inline void SDUse::set(const SDValue &V) {
+ if (Val.getNode()) removeFromList();
+ Val = V;
+ if (V.getNode()) V.getNode()->addUse(*this);
}
-inline bool SDOperand::use_empty() const {
- return !Val->hasAnyUseOfValue(ResNo);
+
+inline void SDUse::setInitial(const SDValue &V) {
+ Val = V;
+ V.getNode()->addUse(*this);
+}
+
+inline void SDUse::setNode(SDNode *N) {
+ if (Val.getNode()) removeFromList();
+ Val.setNode(N);
+ if (N) N->addUse(*this);
}
/// UnarySDNode - This class is used for single-operand SDNodes. This is solely
/// to allow co-allocation of node operands with the node itself.
class UnarySDNode : public SDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
SDUse Op;
public:
- UnarySDNode(unsigned Opc, SDVTList VTs, SDOperand X)
- : SDNode(Opc, VTs) {
- Op = X;
- InitOperands(&Op, 1);
+ UnarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X)
+ : SDNode(Opc, dl, VTs) {
+ InitOperands(&Op, X);
}
};
/// BinarySDNode - This class is used for two-operand SDNodes. This is solely
/// to allow co-allocation of node operands with the node itself.
class BinarySDNode : public SDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
SDUse Ops[2];
public:
- BinarySDNode(unsigned Opc, SDVTList VTs, SDOperand X, SDOperand Y)
- : SDNode(Opc, VTs) {
- Ops[0] = X;
- Ops[1] = Y;
- InitOperands(Ops, 2);
+ BinarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X, SDValue Y)
+ : SDNode(Opc, dl, VTs) {
+ InitOperands(Ops, X, Y);
}
};
/// TernarySDNode - This class is used for three-operand SDNodes. This is solely
/// to allow co-allocation of node operands with the node itself.
class TernarySDNode : public SDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
SDUse Ops[3];
public:
- TernarySDNode(unsigned Opc, SDVTList VTs, SDOperand X, SDOperand Y,
- SDOperand Z)
- : SDNode(Opc, VTs) {
- Ops[0] = X;
- Ops[1] = Y;
- Ops[2] = Z;
- InitOperands(Ops, 3);
+ TernarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X, SDValue Y,
+ SDValue Z)
+ : SDNode(Opc, dl, VTs) {
+ InitOperands(Ops, X, Y, Z);
}
};
/// operand. This node should be directly created by end-users and not added to
/// the AllNodes list.
class HandleSDNode : public SDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
SDUse Op;
public:
// FIXME: Remove the "noinline" attribute once <rdar://problem/5852746> is
// fixed.
#ifdef __GNUC__
- explicit __attribute__((__noinline__)) HandleSDNode(SDOperand X)
+ explicit __attribute__((__noinline__)) HandleSDNode(SDValue X)
#else
- explicit HandleSDNode(SDOperand X)
+ explicit HandleSDNode(SDValue X)
#endif
- : SDNode(ISD::HANDLENODE, getSDVTList(MVT::Other)) {
- Op = X;
- InitOperands(&Op, 1);
+ : SDNode(ISD::HANDLENODE, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)) {
+ InitOperands(&Op, X);
}
~HandleSDNode();
- SDUse getValue() const { return Op; }
+ const SDValue &getValue() const { return Op; }
};
/// Abstact virtual class for operations for memory operations
class MemSDNode : public SDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
-
private:
+ // MemoryVT - VT of in-memory value.
+ MVT MemoryVT;
+
//! SrcValue - Memory location for alias analysis.
const Value *SrcValue;
- //! Alignment - Alignment of memory location in bytes.
- unsigned Alignment;
+ //! SVOffset - Memory location offset. Note that base is defined in MemSDNode
+ int SVOffset;
public:
- MemSDNode(unsigned Opc, SDVTList VTs, const Value *SrcValue,
- unsigned Alignment)
- : SDNode(Opc, VTs), SrcValue(SrcValue), Alignment(Alignment) {}
-
- virtual ~MemSDNode() {}
+ MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, MVT MemoryVT,
+ const Value *srcValue, int SVOff,
+ unsigned alignment, bool isvolatile);
+
+ MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, const SDValue *Ops,
+ unsigned NumOps, MVT MemoryVT, const Value *srcValue, int SVOff,
+ unsigned alignment, bool isvolatile);
/// Returns alignment and volatility of the memory access
- unsigned getAlignment() const { return Alignment; }
- virtual bool isVolatile() const = 0;
-
+ unsigned getAlignment() const { return (1u << (SubclassData >> 6)) >> 1; }
+ bool isVolatile() const { return (SubclassData >> 5) & 1; }
+
+ /// getRawSubclassData - Return the SubclassData value, which contains an
+ /// encoding of the alignment and volatile information, as well as bits
+ /// used by subclasses. This function should only be used to compute a
+ /// FoldingSetNodeID value.
+ unsigned getRawSubclassData() const {
+ return SubclassData;
+ }
+
/// Returns the SrcValue and offset that describes the location of the access
const Value *getSrcValue() const { return SrcValue; }
- virtual int getSrcValueOffset() const = 0;
-
+ int getSrcValueOffset() const { return SVOffset; }
+
+ /// getMemoryVT - Return the type of the in-memory value.
+ MVT getMemoryVT() const { return MemoryVT; }
+
/// getMemOperand - Return a MachineMemOperand object describing the memory
/// reference performed by operation.
- virtual MachineMemOperand getMemOperand() const = 0;
+ MachineMemOperand getMemOperand() const;
+
+ const SDValue &getChain() const { return getOperand(0); }
+ const SDValue &getBasePtr() const {
+ return getOperand(getOpcode() == ISD::STORE ? 2 : 1);
+ }
// Methods to support isa and dyn_cast
static bool classof(const MemSDNode *) { return true; }
static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::LOAD ||
- N->getOpcode() == ISD::STORE ||
- N->getOpcode() == ISD::ATOMIC_CMP_SWAP ||
- N->getOpcode() == ISD::ATOMIC_LOAD_ADD ||
- N->getOpcode() == ISD::ATOMIC_SWAP ||
- N->getOpcode() == ISD::ATOMIC_LOAD_SUB ||
- N->getOpcode() == ISD::ATOMIC_LOAD_AND ||
- N->getOpcode() == ISD::ATOMIC_LOAD_OR ||
- N->getOpcode() == ISD::ATOMIC_LOAD_XOR ||
- N->getOpcode() == ISD::ATOMIC_LOAD_NAND ||
- N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
- N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
- N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
- N->getOpcode() == ISD::ATOMIC_LOAD_UMAX;
- }
+ // For some targets, we lower some target intrinsics to a MemIntrinsicNode
+ // with either an intrinsic or a target opcode.
+ return N->getOpcode() == ISD::LOAD ||
+ N->getOpcode() == ISD::STORE ||
+ N->getOpcode() == ISD::ATOMIC_CMP_SWAP ||
+ N->getOpcode() == ISD::ATOMIC_SWAP ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_ADD ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_SUB ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_AND ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_OR ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_XOR ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_NAND ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_UMAX ||
+ N->getOpcode() == ISD::INTRINSIC_W_CHAIN ||
+ N->getOpcode() == ISD::INTRINSIC_VOID ||
+ N->isTargetOpcode();
+ }
};
-/// Atomic operations node
+/// AtomicSDNode - A SDNode reprenting atomic operations.
+///
class AtomicSDNode : public MemSDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
SDUse Ops[4];
-
- public:
+
+public:
// Opc: opcode for atomic
// VTL: value type list
// Chain: memory chain for operaand
- // Ptr: address to update as a SDOperand
+ // Ptr: address to update as a SDValue
// Cmp: compare value
// Swp: swap value
// SrcVal: address to update as a Value (used for MemOperand)
// Align: alignment of memory
- AtomicSDNode(unsigned Opc, SDVTList VTL, SDOperand Chain, SDOperand Ptr,
- SDOperand Cmp, SDOperand Swp, const Value* SrcVal,
+ AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, MVT MemVT,
+ SDValue Chain, SDValue Ptr,
+ SDValue Cmp, SDValue Swp, const Value* SrcVal,
unsigned Align=0)
- : MemSDNode(Opc, VTL, SrcVal, Align) {
- Ops[0] = Chain;
- Ops[1] = Ptr;
- Ops[2] = Swp;
- Ops[3] = Cmp;
- InitOperands(Ops, 4);
- }
- AtomicSDNode(unsigned Opc, SDVTList VTL, SDOperand Chain, SDOperand Ptr,
- SDOperand Val, const Value* SrcVal, unsigned Align=0)
- : MemSDNode(Opc, VTL, SrcVal, Align) {
- Ops[0] = Chain;
- Ops[1] = Ptr;
- Ops[2] = Val;
- InitOperands(Ops, 3);
+ : MemSDNode(Opc, dl, VTL, MemVT, SrcVal, /*SVOffset=*/0,
+ Align, /*isVolatile=*/true) {
+ InitOperands(Ops, Chain, Ptr, Cmp, Swp);
+ }
+ AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, MVT MemVT,
+ SDValue Chain, SDValue Ptr,
+ SDValue Val, const Value* SrcVal, unsigned Align=0)
+ : MemSDNode(Opc, dl, VTL, MemVT, SrcVal, /*SVOffset=*/0,
+ Align, /*isVolatile=*/true) {
+ InitOperands(Ops, Chain, Ptr, Val);
}
-
- const SDOperand &getChain() const { return getOperand(0); }
- const SDOperand &getBasePtr() const { return getOperand(1); }
- const SDOperand &getVal() const { return getOperand(2); }
- bool isCompareAndSwap() const { return getOpcode() == ISD::ATOMIC_CMP_SWAP; }
+ const SDValue &getBasePtr() const { return getOperand(1); }
+ const SDValue &getVal() const { return getOperand(2); }
+
+ bool isCompareAndSwap() const {
+ unsigned Op = getOpcode();
+ return Op == ISD::ATOMIC_CMP_SWAP;
+ }
- // Implementation for MemSDNode
- virtual int getSrcValueOffset() const { return 0; }
- virtual bool isVolatile() const { return true; }
-
- /// getMemOperand - Return a MachineMemOperand object describing the memory
- /// reference performed by this atomic load/store.
- virtual MachineMemOperand getMemOperand() const;
-
// Methods to support isa and dyn_cast
static bool classof(const AtomicSDNode *) { return true; }
static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::ATOMIC_CMP_SWAP ||
- N->getOpcode() == ISD::ATOMIC_LOAD_ADD ||
- N->getOpcode() == ISD::ATOMIC_SWAP ||
- N->getOpcode() == ISD::ATOMIC_LOAD_SUB ||
- N->getOpcode() == ISD::ATOMIC_LOAD_AND ||
- N->getOpcode() == ISD::ATOMIC_LOAD_OR ||
- N->getOpcode() == ISD::ATOMIC_LOAD_XOR ||
- N->getOpcode() == ISD::ATOMIC_LOAD_NAND ||
- N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
- N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
- N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
+ return N->getOpcode() == ISD::ATOMIC_CMP_SWAP ||
+ N->getOpcode() == ISD::ATOMIC_SWAP ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_ADD ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_SUB ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_AND ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_OR ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_XOR ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_NAND ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
+ N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
N->getOpcode() == ISD::ATOMIC_LOAD_UMAX;
}
};
-class StringSDNode : public SDNode {
- std::string Value;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
-protected:
- friend class SelectionDAG;
- explicit StringSDNode(const std::string &val)
- : SDNode(ISD::STRING, getSDVTList(MVT::Other)), Value(val) {
- }
+/// MemIntrinsicSDNode - This SDNode is used for target intrinsic that touches
+/// memory and need an associated memory operand.
+///
+class MemIntrinsicSDNode : public MemSDNode {
+ bool ReadMem; // Intrinsic reads memory
+ bool WriteMem; // Intrinsic writes memory
public:
- const std::string &getValue() const { return Value; }
- static bool classof(const StringSDNode *) { return true; }
+ MemIntrinsicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs,
+ const SDValue *Ops, unsigned NumOps,
+ MVT MemoryVT, const Value *srcValue, int SVO,
+ unsigned Align, bool Vol, bool ReadMem, bool WriteMem)
+ : MemSDNode(Opc, dl, VTs, Ops, NumOps, MemoryVT, srcValue, SVO, Align, Vol),
+ ReadMem(ReadMem), WriteMem(WriteMem) {
+ }
+
+ bool readMem() const { return ReadMem; }
+ bool writeMem() const { return WriteMem; }
+
+ // Methods to support isa and dyn_cast
+ static bool classof(const MemIntrinsicSDNode *) { return true; }
static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::STRING;
+ // We lower some target intrinsics to their target opcode
+ // early a node with a target opcode can be of this class
+ return N->getOpcode() == ISD::INTRINSIC_W_CHAIN ||
+ N->getOpcode() == ISD::INTRINSIC_VOID ||
+ N->isTargetOpcode();
}
-};
+};
class ConstantSDNode : public SDNode {
- APInt Value;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
+ const ConstantInt *Value;
protected:
friend class SelectionDAG;
- ConstantSDNode(bool isTarget, const APInt &val, MVT VT)
- : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant, getSDVTList(VT)),
- Value(val) {
+ ConstantSDNode(bool isTarget, const ConstantInt *val, MVT VT)
+ : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant,
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), Value(val) {
}
public:
- const APInt &getAPIntValue() const { return Value; }
- uint64_t getValue() const { return Value.getZExtValue(); }
+ const ConstantInt *getConstantIntValue() const { return Value; }
+ const APInt &getAPIntValue() const { return Value->getValue(); }
+ uint64_t getZExtValue() const { return Value->getZExtValue(); }
+ int64_t getSExtValue() const { return Value->getSExtValue(); }
- int64_t getSignExtended() const {
- unsigned Bits = getValueType(0).getSizeInBits();
- return ((int64_t)Value.getZExtValue() << (64-Bits)) >> (64-Bits);
- }
-
- bool isNullValue() const { return Value == 0; }
- bool isAllOnesValue() const {
- return Value == getValueType(0).getIntegerVTBitMask();
- }
+ bool isNullValue() const { return Value->isNullValue(); }
+ bool isAllOnesValue() const { return Value->isAllOnesValue(); }
static bool classof(const ConstantSDNode *) { return true; }
static bool classof(const SDNode *N) {
};
class ConstantFPSDNode : public SDNode {
- APFloat Value;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
+ const ConstantFP *Value;
protected:
friend class SelectionDAG;
- ConstantFPSDNode(bool isTarget, const APFloat& val, MVT VT)
+ ConstantFPSDNode(bool isTarget, const ConstantFP *val, MVT VT)
: SDNode(isTarget ? ISD::TargetConstantFP : ISD::ConstantFP,
- getSDVTList(VT)), Value(val) {
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), Value(val) {
}
public:
- const APFloat& getValueAPF() const { return Value; }
+ const APFloat& getValueAPF() const { return Value->getValueAPF(); }
+ const ConstantFP *getConstantFPValue() const { return Value; }
/// isExactlyValue - We don't rely on operator== working on double values, as
/// it returns true for things that are clearly not equal, like -0.0 and 0.0.
/// convenient to write "2.0" and the like. Without this function we'd
/// have to duplicate its logic everywhere it's called.
bool isExactlyValue(double V) const {
+ bool ignored;
// convert is not supported on this type
- if (&Value.getSemantics() == &APFloat::PPCDoubleDouble)
+ if (&Value->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble)
return false;
APFloat Tmp(V);
- Tmp.convert(Value.getSemantics(), APFloat::rmNearestTiesToEven);
+ Tmp.convert(Value->getValueAPF().getSemantics(),
+ APFloat::rmNearestTiesToEven, &ignored);
return isExactlyValue(Tmp);
}
bool isExactlyValue(const APFloat& V) const;
class GlobalAddressSDNode : public SDNode {
GlobalValue *TheGlobal;
- int Offset;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
+ int64_t Offset;
protected:
friend class SelectionDAG;
- GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT VT, int o = 0);
+ GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT VT,
+ int64_t o = 0);
public:
GlobalValue *getGlobal() const { return TheGlobal; }
- int getOffset() const { return Offset; }
+ int64_t getOffset() const { return Offset; }
static bool classof(const GlobalAddressSDNode *) { return true; }
static bool classof(const SDNode *N) {
class FrameIndexSDNode : public SDNode {
int FI;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
FrameIndexSDNode(int fi, MVT VT, bool isTarg)
- : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex, getSDVTList(VT)),
- FI(fi) {
+ : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex,
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), FI(fi) {
}
public:
class JumpTableSDNode : public SDNode {
int JTI;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
JumpTableSDNode(int jti, MVT VT, bool isTarg)
- : SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable, getSDVTList(VT)),
- JTI(jti) {
+ : SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable,
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), JTI(jti) {
}
public:
} Val;
int Offset; // It's a MachineConstantPoolValue if top bit is set.
unsigned Alignment;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
ConstantPoolSDNode(bool isTarget, Constant *c, MVT VT, int o=0)
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
+ DebugLoc::getUnknownLoc(),
getSDVTList(VT)), Offset(o), Alignment(0) {
assert((int)Offset >= 0 && "Offset is too large");
Val.ConstVal = c;
}
ConstantPoolSDNode(bool isTarget, Constant *c, MVT VT, int o, unsigned Align)
- : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
+ : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
+ DebugLoc::getUnknownLoc(),
getSDVTList(VT)), Offset(o), Alignment(Align) {
assert((int)Offset >= 0 && "Offset is too large");
Val.ConstVal = c;
ConstantPoolSDNode(bool isTarget, MachineConstantPoolValue *v,
MVT VT, int o=0)
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
+ DebugLoc::getUnknownLoc(),
getSDVTList(VT)), Offset(o), Alignment(0) {
assert((int)Offset >= 0 && "Offset is too large");
Val.MachineCPVal = v;
ConstantPoolSDNode(bool isTarget, MachineConstantPoolValue *v,
MVT VT, int o, unsigned Align)
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
+ DebugLoc::getUnknownLoc(),
getSDVTList(VT)), Offset(o), Alignment(Align) {
assert((int)Offset >= 0 && "Offset is too large");
Val.MachineCPVal = v;
class BasicBlockSDNode : public SDNode {
MachineBasicBlock *MBB;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
+ /// Debug info is meaningful and potentially useful here, but we create
+ /// blocks out of order when they're jumped to, which makes it a bit
+ /// harder. Let's see if we need it first.
explicit BasicBlockSDNode(MachineBasicBlock *mbb)
- : SDNode(ISD::BasicBlock, getSDVTList(MVT::Other)), MBB(mbb) {
+ : SDNode(ISD::BasicBlock, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), MBB(mbb) {
}
public:
///
class SrcValueSDNode : public SDNode {
const Value *V;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
/// Create a SrcValue for a general value.
explicit SrcValueSDNode(const Value *v)
- : SDNode(ISD::SRCVALUE, getSDVTList(MVT::Other)), V(v) {}
+ : SDNode(ISD::SRCVALUE, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), V(v) {}
public:
/// getValue - return the contained Value.
/// and ISD::STORE have been lowered.
///
class MemOperandSDNode : public SDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
/// Create a MachineMemOperand node
explicit MemOperandSDNode(const MachineMemOperand &mo)
- : SDNode(ISD::MEMOPERAND, getSDVTList(MVT::Other)), MO(mo) {}
+ : SDNode(ISD::MEMOPERAND, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), MO(mo) {}
public:
/// MO - The contained MachineMemOperand.
class RegisterSDNode : public SDNode {
unsigned Reg;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
RegisterSDNode(unsigned reg, MVT VT)
- : SDNode(ISD::Register, getSDVTList(VT)), Reg(reg) {
+ : SDNode(ISD::Register, DebugLoc::getUnknownLoc(),
+ getSDVTList(VT)), Reg(reg) {
}
public:
}
};
+class DbgStopPointSDNode : public SDNode {
+ SDUse Chain;
+ unsigned Line;
+ unsigned Column;
+ Value *CU;
+protected:
+ friend class SelectionDAG;
+ DbgStopPointSDNode(SDValue ch, unsigned l, unsigned c,
+ Value *cu)
+ : SDNode(ISD::DBG_STOPPOINT, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), Line(l), Column(c), CU(cu) {
+ InitOperands(&Chain, ch);
+ }
+public:
+ unsigned getLine() const { return Line; }
+ unsigned getColumn() const { return Column; }
+ Value *getCompileUnit() const { return CU; }
+
+ static bool classof(const DbgStopPointSDNode *) { return true; }
+ static bool classof(const SDNode *N) {
+ return N->getOpcode() == ISD::DBG_STOPPOINT;
+ }
+};
+
+class LabelSDNode : public SDNode {
+ SDUse Chain;
+ unsigned LabelID;
+protected:
+ friend class SelectionDAG;
+LabelSDNode(unsigned NodeTy, DebugLoc dl, SDValue ch, unsigned id)
+ : SDNode(NodeTy, dl, getSDVTList(MVT::Other)), LabelID(id) {
+ InitOperands(&Chain, ch);
+ }
+public:
+ unsigned getLabelID() const { return LabelID; }
+
+ static bool classof(const LabelSDNode *) { return true; }
+ static bool classof(const SDNode *N) {
+ return N->getOpcode() == ISD::DBG_LABEL ||
+ N->getOpcode() == ISD::EH_LABEL;
+ }
+};
+
class ExternalSymbolSDNode : public SDNode {
const char *Symbol;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
ExternalSymbolSDNode(bool isTarget, const char *Sym, MVT VT)
: SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol,
+ DebugLoc::getUnknownLoc(),
getSDVTList(VT)), Symbol(Sym) {
}
public:
class CondCodeSDNode : public SDNode {
ISD::CondCode Condition;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
explicit CondCodeSDNode(ISD::CondCode Cond)
- : SDNode(ISD::CONDCODE, getSDVTList(MVT::Other)), Condition(Cond) {
+ : SDNode(ISD::CONDCODE, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), Condition(Cond) {
}
public:
}
};
+/// CvtRndSatSDNode - NOTE: avoid using this node as this may disappear in the
+/// future and most targets don't support it.
+class CvtRndSatSDNode : public SDNode {
+ ISD::CvtCode CvtCode;
+protected:
+ friend class SelectionDAG;
+ explicit CvtRndSatSDNode(MVT VT, DebugLoc dl, const SDValue *Ops,
+ unsigned NumOps, ISD::CvtCode Code)
+ : SDNode(ISD::CONVERT_RNDSAT, dl, getSDVTList(VT), Ops, NumOps),
+ CvtCode(Code) {
+ assert(NumOps == 5 && "wrong number of operations");
+ }
+public:
+ ISD::CvtCode getCvtCode() const { return CvtCode; }
+
+ static bool classof(const CvtRndSatSDNode *) { return true; }
+ static bool classof(const SDNode *N) {
+ return N->getOpcode() == ISD::CONVERT_RNDSAT;
+ }
+};
+
namespace ISD {
struct ArgFlagsTy {
private:
/// ARG_FLAGSSDNode - Leaf node holding parameter flags.
class ARG_FLAGSSDNode : public SDNode {
ISD::ArgFlagsTy TheFlags;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
explicit ARG_FLAGSSDNode(ISD::ArgFlagsTy Flags)
- : SDNode(ISD::ARG_FLAGS, getSDVTList(MVT::Other)), TheFlags(Flags) {
+ : SDNode(ISD::ARG_FLAGS, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), TheFlags(Flags) {
}
public:
ISD::ArgFlagsTy getArgFlags() const { return TheFlags; }
}
};
+/// CallSDNode - Node for calls -- ISD::CALL.
+class CallSDNode : public SDNode {
+ unsigned CallingConv;
+ bool IsVarArg;
+ bool IsTailCall;
+ // We might eventually want a full-blown Attributes for the result; that
+ // will expand the size of the representation. At the moment we only
+ // need Inreg.
+ bool Inreg;
+protected:
+ friend class SelectionDAG;
+ CallSDNode(unsigned cc, DebugLoc dl, bool isvararg, bool istailcall,
+ bool isinreg, SDVTList VTs, const SDValue *Operands,
+ unsigned numOperands)
+ : SDNode(ISD::CALL, dl, VTs, Operands, numOperands),
+ CallingConv(cc), IsVarArg(isvararg), IsTailCall(istailcall),
+ Inreg(isinreg) {}
+public:
+ unsigned getCallingConv() const { return CallingConv; }
+ unsigned isVarArg() const { return IsVarArg; }
+ unsigned isTailCall() const { return IsTailCall; }
+ unsigned isInreg() const { return Inreg; }
+
+ /// Set this call to not be marked as a tail call. Normally setter
+ /// methods in SDNodes are unsafe because it breaks the CSE map,
+ /// but we don't include the tail call flag for calls so it's ok
+ /// in this case.
+ void setNotTailCall() { IsTailCall = false; }
+
+ SDValue getChain() const { return getOperand(0); }
+ SDValue getCallee() const { return getOperand(1); }
+
+ unsigned getNumArgs() const { return (getNumOperands() - 2) / 2; }
+ SDValue getArg(unsigned i) const { return getOperand(2+2*i); }
+ SDValue getArgFlagsVal(unsigned i) const {
+ return getOperand(3+2*i);
+ }
+ ISD::ArgFlagsTy getArgFlags(unsigned i) const {
+ return cast<ARG_FLAGSSDNode>(getArgFlagsVal(i).getNode())->getArgFlags();
+ }
+
+ unsigned getNumRetVals() const { return getNumValues() - 1; }
+ MVT getRetValType(unsigned i) const { return getValueType(i); }
+
+ static bool classof(const CallSDNode *) { return true; }
+ static bool classof(const SDNode *N) {
+ return N->getOpcode() == ISD::CALL;
+ }
+};
+
/// VTSDNode - This class is used to represent MVT's, which are used
/// to parameterize some operations.
class VTSDNode : public SDNode {
MVT ValueType;
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
protected:
friend class SelectionDAG;
explicit VTSDNode(MVT VT)
- : SDNode(ISD::VALUETYPE, getSDVTList(MVT::Other)), ValueType(VT) {
+ : SDNode(ISD::VALUETYPE, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), ValueType(VT) {
}
public:
/// LSBaseSDNode - Base class for LoadSDNode and StoreSDNode
///
class LSBaseSDNode : public MemSDNode {
-private:
- // AddrMode - unindexed, pre-indexed, post-indexed.
- ISD::MemIndexedMode AddrMode;
-
- // MemoryVT - VT of in-memory value.
- MVT MemoryVT;
-
- //! SVOffset - Memory location offset. Note that base is defined in MemSDNode
- int SVOffset;
-
- //! IsVolatile - True if the load/store is volatile.
- bool IsVolatile;
-
protected:
//! Operand array for load and store
/*!
*/
SDUse Ops[4];
public:
- LSBaseSDNode(ISD::NodeType NodeTy, SDOperand *Operands, unsigned numOperands,
- SDVTList VTs, ISD::MemIndexedMode AM, MVT VT,
- const Value *SV, int SVO, unsigned Align, bool Vol)
- : MemSDNode(NodeTy, VTs, SV, Align), AddrMode(AM), MemoryVT(VT),
- SVOffset(SVO), IsVolatile(Vol) {
- for (unsigned i = 0; i != numOperands; ++i)
- Ops[i] = Operands[i];
- InitOperands(Ops, numOperands);
+ LSBaseSDNode(ISD::NodeType NodeTy, DebugLoc dl, SDValue *Operands,
+ unsigned numOperands, SDVTList VTs, ISD::MemIndexedMode AM,
+ MVT VT, const Value *SV, int SVO, unsigned Align, bool Vol)
+ : MemSDNode(NodeTy, dl, VTs, VT, SV, SVO, Align, Vol) {
assert(Align != 0 && "Loads and stores should have non-zero aligment");
+ SubclassData |= AM << 2;
+ assert(getAddressingMode() == AM && "MemIndexedMode encoding error!");
+ InitOperands(Ops, Operands, numOperands);
assert((getOffset().getOpcode() == ISD::UNDEF || isIndexed()) &&
"Only indexed loads and stores have a non-undef offset operand");
}
- const SDOperand &getChain() const { return getOperand(0); }
- const SDOperand &getBasePtr() const {
- return getOperand(getOpcode() == ISD::LOAD ? 1 : 2);
- }
- const SDOperand &getOffset() const {
+ const SDValue &getOffset() const {
return getOperand(getOpcode() == ISD::LOAD ? 2 : 3);
}
- MVT getMemoryVT() const { return MemoryVT; }
-
- ISD::MemIndexedMode getAddressingMode() const { return AddrMode; }
+ /// getAddressingMode - Return the addressing mode for this load or store:
+ /// unindexed, pre-inc, pre-dec, post-inc, or post-dec.
+ ISD::MemIndexedMode getAddressingMode() const {
+ return ISD::MemIndexedMode((SubclassData >> 2) & 7);
+ }
/// isIndexed - Return true if this is a pre/post inc/dec load/store.
- bool isIndexed() const { return AddrMode != ISD::UNINDEXED; }
+ bool isIndexed() const { return getAddressingMode() != ISD::UNINDEXED; }
/// isUnindexed - Return true if this is NOT a pre/post inc/dec load/store.
- bool isUnindexed() const { return AddrMode == ISD::UNINDEXED; }
-
- // Implementation for MemSDNode
- virtual int getSrcValueOffset() const { return SVOffset; }
- virtual bool isVolatile() const { return IsVolatile; }
-
- /// getMemOperand - Return a MachineMemOperand object describing the memory
- /// reference performed by this load or store.
- virtual MachineMemOperand getMemOperand() const;
+ bool isUnindexed() const { return getAddressingMode() == ISD::UNINDEXED; }
static bool classof(const LSBaseSDNode *) { return true; }
static bool classof(const SDNode *N) {
/// LoadSDNode - This class is used to represent ISD::LOAD nodes.
///
class LoadSDNode : public LSBaseSDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
-
- // ExtType - non-ext, anyext, sext, zext.
- ISD::LoadExtType ExtType;
-
protected:
friend class SelectionDAG;
- LoadSDNode(SDOperand *ChainPtrOff, SDVTList VTs,
+ LoadSDNode(SDValue *ChainPtrOff, DebugLoc dl, SDVTList VTs,
ISD::MemIndexedMode AM, ISD::LoadExtType ETy, MVT LVT,
const Value *SV, int O=0, unsigned Align=0, bool Vol=false)
- : LSBaseSDNode(ISD::LOAD, ChainPtrOff, 3,
- VTs, AM, LVT, SV, O, Align, Vol),
- ExtType(ETy) {}
+ : LSBaseSDNode(ISD::LOAD, dl, ChainPtrOff, 3,
+ VTs, AM, LVT, SV, O, Align, Vol) {
+ SubclassData |= (unsigned short)ETy;
+ assert(getExtensionType() == ETy && "LoadExtType encoding error!");
+ }
public:
- ISD::LoadExtType getExtensionType() const { return ExtType; }
- const SDOperand &getBasePtr() const { return getOperand(1); }
- const SDOperand &getOffset() const { return getOperand(2); }
-
+ /// getExtensionType - Return whether this is a plain node,
+ /// or one of the varieties of value-extending loads.
+ ISD::LoadExtType getExtensionType() const {
+ return ISD::LoadExtType(SubclassData & 3);
+ }
+
+ const SDValue &getBasePtr() const { return getOperand(1); }
+ const SDValue &getOffset() const { return getOperand(2); }
+
static bool classof(const LoadSDNode *) { return true; }
static bool classof(const SDNode *N) {
return N->getOpcode() == ISD::LOAD;
/// StoreSDNode - This class is used to represent ISD::STORE nodes.
///
class StoreSDNode : public LSBaseSDNode {
- virtual void ANCHOR(); // Out-of-line virtual method to give class a home.
-
- // IsTruncStore - True if the op does a truncation before store.
- bool IsTruncStore;
protected:
friend class SelectionDAG;
- StoreSDNode(SDOperand *ChainValuePtrOff, SDVTList VTs,
+ StoreSDNode(SDValue *ChainValuePtrOff, DebugLoc dl, SDVTList VTs,
ISD::MemIndexedMode AM, bool isTrunc, MVT SVT,
const Value *SV, int O=0, unsigned Align=0, bool Vol=false)
- : LSBaseSDNode(ISD::STORE, ChainValuePtrOff, 4,
- VTs, AM, SVT, SV, O, Align, Vol),
- IsTruncStore(isTrunc) {}
+ : LSBaseSDNode(ISD::STORE, dl, ChainValuePtrOff, 4,
+ VTs, AM, SVT, SV, O, Align, Vol) {
+ SubclassData |= (unsigned short)isTrunc;
+ assert(isTruncatingStore() == isTrunc && "isTrunc encoding error!");
+ }
public:
- bool isTruncatingStore() const { return IsTruncStore; }
- const SDOperand &getValue() const { return getOperand(1); }
- const SDOperand &getBasePtr() const { return getOperand(2); }
- const SDOperand &getOffset() const { return getOperand(3); }
-
+ /// isTruncatingStore - Return true if the op does a truncation before store.
+ /// For integers this is the same as doing a TRUNCATE and storing the result.
+ /// For floats, it is the same as doing an FP_ROUND and storing the result.
+ bool isTruncatingStore() const { return SubclassData & 1; }
+
+ const SDValue &getValue() const { return getOperand(1); }
+ const SDValue &getBasePtr() const { return getOperand(2); }
+ const SDValue &getOffset() const { return getOperand(3); }
+
static bool classof(const StoreSDNode *) { return true; }
static bool classof(const SDNode *N) {
return N->getOpcode() == ISD::STORE;
}
pointer operator*() const {
- return Node->getOperand(Operand).Val;
+ return Node->getOperand(Operand).getNode();
}
pointer operator->() const { return operator*(); }
}
};
-template<>
-struct ilist_traits<SDNode> {
- static SDNode *getPrev(const SDNode *N) { return N->Prev; }
- static SDNode *getNext(const SDNode *N) { return N->Next; }
-
- static void setPrev(SDNode *N, SDNode *Prev) { N->Prev = Prev; }
- static void setNext(SDNode *N, SDNode *Next) { N->Next = Next; }
-
- static SDNode *createSentinel() {
- return new SDNode(ISD::EntryToken, SDNode::getSDVTList(MVT::Other));
- }
- static void destroySentinel(SDNode *N) { delete N; }
- //static SDNode *createNode(const SDNode &V) { return new SDNode(V); }
-
-
- void addNodeToList(SDNode *) {}
- void removeNodeFromList(SDNode *) {}
- void transferNodesFromList(iplist<SDNode, ilist_traits> &,
- const ilist_iterator<SDNode> &,
- const ilist_iterator<SDNode> &) {}
-};
+/// LargestSDNode - The largest SDNode class.
+///
+typedef LoadSDNode LargestSDNode;
+
+/// MostAlignedSDNode - The SDNode class with the greatest alignment
+/// requirement.
+///
+typedef ARG_FLAGSSDNode MostAlignedSDNode;
namespace ISD {
/// isNormalLoad - Returns true if the specified node is a non-extending
projects / oota-llvm.git / blobdiff