#include "llvm/Constants.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/GraphTraits.h"
-#include "llvm/ADT/iterator.h"
#include "llvm/ADT/ilist_node.h"
+#include "llvm/ADT/SmallVector.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/Support/MathExtras.h"
+#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DebugLoc.h"
#include <cassert>
namespace llvm {
template <typename T> struct simplify_type;
template <typename T> struct ilist_traits;
+void checkForCycles(const SDNode *N);
+
/// 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
/// SelectionDAG::getVTList(...).
///
struct SDVTList {
- const MVT *VTs;
- unsigned short NumVTs;
+ const EVT *VTs;
+ unsigned int NumVTs;
};
/// ISD namespace - This namespace contains an enum which represents all of the
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
+ // DELETED_NODE - This is an illegal value that is used to catch
// errors. This opcode is not a legal opcode for any node.
DELETED_NODE,
-
+
// EntryToken - This is the marker used to indicate the start of the region.
EntryToken,
// single token result. This is used to represent the fact that the operand
// operators are independent of each other.
TokenFactor,
-
- // AssertSext, AssertZext - These nodes record if a register contains a
- // value that has already been zero or sign extended from a narrower type.
- // These nodes take two operands. The first is the node that has already
+
+ // AssertSext, AssertZext - These nodes record if a register contains a
+ // value that has already been zero or sign extended from a narrower type.
+ // These nodes take two operands. The first is the node that has already
// been extended, and the second is a value type node indicating the width
// of the extension
AssertSext, AssertZext,
// Various leaf nodes.
- BasicBlock, VALUETYPE, ARG_FLAGS, CONDCODE, Register,
+ BasicBlock, VALUETYPE, CONDCODE, Register,
Constant, ConstantFP,
GlobalAddress, GlobalTLSAddress, FrameIndex,
- JumpTable, ConstantPool, ExternalSymbol,
+ JumpTable, ConstantPool, ExternalSymbol, BlockAddress,
// The address of the GOT
GLOBAL_OFFSET_TABLE,
-
+
// FRAMEADDR, RETURNADDR - These nodes represent llvm.frameaddress and
// llvm.returnaddress on the DAG. These nodes take one operand, the index
// of the frame or return address to return. An index of zero corresponds
// first (possible) on-stack argument. This is needed for correct stack
// adjustment during unwind.
FRAME_TO_ARGS_OFFSET,
-
+
// RESULT, OUTCHAIN = EXCEPTIONADDR(INCHAIN) - This node represents the
// address of the exception block on entry to an landing pad block.
EXCEPTIONADDR,
-
+
+ // RESULT, OUTCHAIN = LSDAADDR(INCHAIN) - This node represents the
+ // address of the Language Specific Data Area for the enclosing function.
+ LSDAADDR,
+
// RESULT, OUTCHAIN = EHSELECTION(INCHAIN, EXCEPTION) - This node represents
// the selection index of the exception thrown.
EHSELECTION,
// simplification of the constant.
TargetConstant,
TargetConstantFP,
-
+
// TargetGlobalAddress - Like GlobalAddress, but the DAG does no folding or
// anything else with this node, and this is valid in the target-specific
// dag, turning into a GlobalAddress operand.
TargetJumpTable,
TargetConstantPool,
TargetExternalSymbol,
-
+ TargetBlockAddress,
+
/// RESULT = INTRINSIC_WO_CHAIN(INTRINSICID, arg1, arg2, ...)
/// This node represents a target intrinsic function with no side effects.
/// The first operand is the ID number of the intrinsic from the
/// llvm::Intrinsic namespace. The operands to the intrinsic follow. The
/// node has returns the result of the intrinsic.
INTRINSIC_WO_CHAIN,
-
+
/// RESULT,OUTCHAIN = INTRINSIC_W_CHAIN(INCHAIN, INTRINSICID, arg1, ...)
/// This node represents a target intrinsic function with side effects that
/// returns a result. The first operand is a chain pointer. The second is
/// second is the ID number of the intrinsic from the llvm::Intrinsic
/// namespace. The operands to the intrinsic follow.
INTRINSIC_VOID,
-
+
// CopyToReg - This node has three operands: a chain, a register number to
- // set to this value, and a value.
+ // set to this value, and a value.
CopyToReg,
// CopyFromReg - This node indicates that the input value is a virtual or
// UNDEF - An undefined node
UNDEF,
-
- /// FORMAL_ARGUMENTS(CHAIN, CC#, ISVARARG, FLAG0, ..., FLAGn) - This node
- /// represents the formal arguments for a function. CC# is a Constant value
- /// indicating the calling convention of the function, and ISVARARG is a
- /// flag that indicates whether the function is varargs or not. This node
- /// has one result value for each incoming argument, plus one for the output
- /// chain. It must be custom legalized. See description of CALL node for
- /// FLAG argument contents explanation.
- ///
- FORMAL_ARGUMENTS,
-
- /// 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
- /// a chain result. It must be custom legalized. Flag argument indicates
- /// misc. argument attributes. Currently:
- /// Bit 0 - signness
- /// Bit 1 - 'inreg' attribute
- /// Bit 2 - 'sret' attribute
- /// Bit 4 - 'byval' attribute
- /// Bit 5 - 'nest' attribute
- /// Bit 6-9 - alignment of byval structures
- /// 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 or
// 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.
- // This node is useful for some pieces of the code generator that want to
- // think about a single node with multiple results, not multiple nodes.
+ // number of inputs and outputs. This node is useful for some pieces of the
+ // code generator that want to think about a single node with multiple
+ // results, not multiple nodes.
MERGE_VALUES,
// Simple integer binary arithmetic operators.
// SDIVREM/UDIVREM - Divide two integers and produce both a quotient and
// remainder result.
SDIVREM, UDIVREM,
-
+
// CARRY_FALSE - This node is used when folding other nodes,
// like ADDC/SUBC, which indicate the carry result is always false.
CARRY_FALSE,
-
+
// Carry-setting nodes for multiple precision addition and subtraction.
// These nodes take two operands of the same value type, and produce two
// results. The first result is the normal add or sub result, the second
// result is the carry flag result.
ADDC, SUBC,
-
+
// Carry-using nodes for multiple precision addition and subtraction. These
// nodes take three operands: The first two are the normal lhs and rhs to
// the add or sub, and the third is the input carry flag. These nodes
// INT = FGETSIGN(FP) - Return the sign bit of the specified floating point
// value as an integer 0/1 value.
FGETSIGN,
-
- /// BUILD_VECTOR(ELT0, ELT1, ELT2, ELT3,...) - Return a vector
- /// with the specified, possibly variable, elements. The number of elements
- /// is required to be a power of two.
+
+ /// BUILD_VECTOR(ELT0, ELT1, ELT2, ELT3,...) - Return a vector with the
+ /// specified, possibly variable, elements. The number of elements is
+ /// required to be a power of two. The types of the operands must all be
+ /// the same and must match the vector element type, except that integer
+ /// types are allowed to be larger than the element type, in which case
+ /// the operands are implicitly truncated.
BUILD_VECTOR,
-
+
/// INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR with the element
/// at IDX replaced with VAL. If the type of VAL is larger than the vector
/// element type then VAL is truncated before replacement.
INSERT_VECTOR_ELT,
/// EXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR
- /// identified by the (potentially variable) element number IDX.
+ /// identified by the (potentially variable) element number IDX. If the
+ /// return type is an integer type larger than the element type of the
+ /// vector, the result is extended to the width of the return type.
EXTRACT_VECTOR_ELT,
-
+
/// CONCAT_VECTORS(VECTOR0, VECTOR1, ...) - Given a number of values of
/// vector type with the same length and element type, this produces a
/// concatenated vector result value, with length equal to the sum of the
/// lengths of the input vectors.
CONCAT_VECTORS,
-
+
/// EXTRACT_SUBVECTOR(VECTOR, IDX) - Returns a subvector from VECTOR (an
/// vector value) starting with the (potentially variable) element number
/// IDX, which must be a multiple of the result vector length.
EXTRACT_SUBVECTOR,
- /// VECTOR_SHUFFLE(VEC1, VEC2, SHUFFLEVEC) - Returns a vector, of the same
- /// type as VEC1/VEC2. SHUFFLEVEC is a BUILD_VECTOR of constant int values
- /// (maybe of an illegal datatype) or undef that indicate which value each
- /// result element will get. The elements of VEC1/VEC2 are enumerated in
- /// order. This is quite similar to the Altivec 'vperm' instruction, except
- /// that the indices must be constants and are in terms of the element size
- /// of VEC1/VEC2, not in terms of bytes.
+ /// VECTOR_SHUFFLE(VEC1, VEC2) - Returns a vector, of the same type as
+ /// VEC1/VEC2. A VECTOR_SHUFFLE node also contains an array of constant int
+ /// values that indicate which value (or undef) each result element will
+ /// get. These constant ints are accessible through the
+ /// ShuffleVectorSDNode class. This is quite similar to the Altivec
+ /// 'vperm' instruction, except that the indices must be constants and are
+ /// in terms of the element size of VEC1/VEC2, not in terms of bytes.
VECTOR_SHUFFLE,
/// SCALAR_TO_VECTOR(VAL) - This represents the operation of loading a
/// scalar value into element 0 of the resultant vector type. The top
- /// elements 1 to N-1 of the N-element vector are undefined.
+ /// elements 1 to N-1 of the N-element vector are undefined. The type
+ /// of the operand must match the vector element type, except when they
+ /// are integer types. In this case the operand is allowed to be wider
+ /// than the vector element type, and is implicitly truncated to it.
SCALAR_TO_VECTOR,
-
- // EXTRACT_SUBREG - This node is used to extract a sub-register value.
- // This node takes a superreg and a constant sub-register index as operands.
- // Note sub-register indices must be increasing. That is, if the
- // sub-register index of a 8-bit sub-register is N, then the index for a
- // 16-bit sub-register must be at least N+1.
- EXTRACT_SUBREG,
-
- // INSERT_SUBREG - This node is used to insert a sub-register value.
- // This node takes a superreg, a subreg value, and a constant sub-register
- // index as operands.
- INSERT_SUBREG,
-
+
// MULHU/MULHS - Multiply high - Multiply two integers of type iN, producing
// an unsigned/signed value of type i[2*N], then return the top part.
MULHU, MULHS,
// i1 then the high bits must conform to getBooleanContents.
SELECT,
- // Select with condition operator - This selects between a true value and
+ // 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
+ // the lhs and rhs (ops #0 and #1) of a conditional expression with the
// condition code in op #4, a CondCodeSDNode.
SELECT_CC,
// them with (op #2) as a CondCodeSDNode.
SETCC,
- // Vector SetCC operator - This evaluates to a vector of integer elements
- // with the high bit in each element set to true if the comparison is true
- // and false if the comparison is false. All other bits in each element
- // are undefined. 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.
+ // RESULT = VSETCC(LHS, RHS, COND) operator - This evaluates to a vector of
+ // integer elements with all bits of the result elements set to true if the
+ // comparison is true or all cleared if the comparison is false. The
+ // operands to this are the left and right operands to compare (LHS/RHS) and
+ // the condition code to compare them with (COND) as a CondCodeSDNode.
VSETCC,
// SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded
// ANY_EXTEND - Used for integer types. The high bits are undefined.
ANY_EXTEND,
-
+
// TRUNCATE - Completely drop the high bits.
TRUNCATE,
/// The TRUNC = 1 case is used in cases where we know that the value will
/// not be modified by the node, because Y is not using any of the extra
/// precision of source type. This allows certain transformations like
- /// FP_EXTEND(FP_ROUND(X,1)) -> X which are not safe for
+ /// FP_EXTEND(FP_ROUND(X,1)) -> X which are not safe for
/// FP_EXTEND(FP_ROUND(X,0)) because the extra bits aren't removed.
FP_ROUND,
-
+
// FLT_ROUNDS_ - Returns current rounding mode:
// -1 Undefined
// 0 Round to 0
/// X = FP_EXTEND(Y) - Extend a smaller FP type into a larger FP type.
FP_EXTEND,
- // BIT_CONVERT - Theis operator converts between integer and FP values, as
- // if one was stored to memory as integer and the other was loaded from the
- // same address (or equivalently for vector format conversions, etc). The
- // source and result are required to have the same bit size (e.g.
- // f32 <-> i32). This can also be used for int-to-int or fp-to-fp
- // conversions, but that is a noop, deleted by getNode().
+ // BIT_CONVERT - This operator converts between integer, vector and FP
+ // values, as if the value was stored to memory with one type and loaded
+ // from the same address with the other type (or equivalently for vector
+ // format conversions, etc). The source and result are required to have
+ // the same bit size (e.g. f32 <-> i32). This can also be used for
+ // int-to-int or fp-to-fp conversions, but that is a noop, deleted by
+ // getNode().
BIT_CONVERT,
-
+
// 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
// 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
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
// is added / subtracted from the base pointer to form the address (for
// compare, rather than as a combined SetCC node. The operands in order are
// chain, cc, lhs, rhs, block to branch to if condition is true.
BR_CC,
-
- // RET - Return from function. The first operand is the chain,
- // and any subsequent operands are pairs of return value and return value
- // 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
// return values: a chain and a flag result. The inputs are as follows:
// Operand #2n+3: A TargetConstant, indicating if the reg is a use/def
// Operand #last: Optional, an incoming flag.
INLINEASM,
-
- // DBG_LABEL, EH_LABEL - Represents a label in mid basic block used to track
+
+ // 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
- // a chain, while the next two operands are first two arguments (address
- // and variable) of a llvm.dbg.declare instruction.
- DECLARE,
-
// STACKSAVE - STACKSAVE has one operand, an input chain. It produces a
// value, the same type as the pointer type for the system, and an output
// chain.
STACKSAVE,
-
+
// STACKRESTORE has two operands, an input chain and a pointer to restore to
// it returns an output chain.
STACKRESTORE,
-
+
// CALLSEQ_START/CALLSEQ_END - These operators mark the beginning and end of
// a call sequence, and carry arbitrary information that target might want
// to know. The first operand is a chain, the rest are specified by the
// CALLSEQ_START..CALLSEQ_END pairs may not be nested.
CALLSEQ_START, // Beginning of a call sequence
CALLSEQ_END, // End of a call sequence
-
- // VAARG - VAARG has three operands: an input chain, a pointer, and a
+
+ // VAARG - VAARG has three operands: an input chain, a pointer, and a
// SRCVALUE. It returns a pair of values: the vaarg value and a new chain.
VAARG,
-
+
// VACOPY - VACOPY has five operands: an input chain, a destination pointer,
// a source pointer, a SRCVALUE for the destination, and a SRCVALUE for the
// source.
VACOPY,
-
+
// VAEND, VASTART - VAEND and VASTART have three operands: an input chain, a
// pointer, and a SRCVALUE.
VAEND, VASTART,
// make reference to a value in the LLVM IR.
SRCVALUE,
- // MEMOPERAND - This is a node that contains a MachineMemOperand which
- // records information about a memory reference. This is used to make
- // AliasAnalysis queries from the backend.
- MEMOPERAND,
-
// PCMARKER - This corresponds to the pcmarker intrinsic.
PCMARKER,
// READCYCLECOUNTER - This corresponds to the readcyclecounter intrinsic.
// The only operand is a chain and a value and a chain are produced. The
- // value is the contents of the architecture specific cycle counter like
+ // value is the contents of the architecture specific cycle counter like
// register (or other high accuracy low latency clock source)
READCYCLECOUNTER,
// HANDLENODE node - Used as a handle for various purposes.
HANDLENODE,
- // 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
- // number, then a column then a file id (provided by MachineModuleInfo.) It
- // produces a token chain as output.
- DEBUG_LOC,
-
// TRAMPOLINE - This corresponds to the init_trampoline intrinsic.
// It takes as input a token chain, the pointer to the trampoline,
// the pointer to the nested function, the pointer to pass for the
// read / write specifier, and locality specifier.
PREFETCH,
- // OUTCHAIN = MEMBARRIER(INCHAIN, load-load, load-store, store-load,
+ // OUTCHAIN = MEMBARRIER(INCHAIN, load-load, load-store, store-load,
// store-store, device)
// This corresponds to the memory.barrier intrinsic.
// it takes an input chain, 4 operands to specify the type of barrier, an
ATOMIC_LOAD_MAX,
ATOMIC_LOAD_UMIN,
ATOMIC_LOAD_UMAX,
-
- // BUILTIN_OP_END - This must be the last enum value in this list.
+
+ /// BUILTIN_OP_END - This must be the last enum value in this list.
+ /// The target-specific pre-isel opcode values start here.
BUILTIN_OP_END
};
+ /// FIRST_TARGET_MEMORY_OPCODE - Target-specific pre-isel operations
+ /// which do not reference a specific memory location should be less than
+ /// this value. Those that do must not be less than this value, and can
+ /// be used with SelectionDAG::getMemIntrinsicNode.
+ static const int FIRST_TARGET_MEMORY_OPCODE = 1 << 14;
+
/// Node predicates
/// isBuildVectorAllOnes - Return true if the specified node is a
/// element is not an undef.
bool isScalarToVector(const SDNode *N);
- /// isDebugLabel - Return true if the specified node represents a debug
- /// label (i.e. ISD::DBG_LABEL or TargetInstrInfo::DBG_LABEL node).
- bool isDebugLabel(const SDNode *N);
-
//===--------------------------------------------------------------------===//
- /// MemIndexedMode enum - This enum defines the load / store indexed
+ /// MemIndexedMode enum - This enum defines the load / store indexed
/// addressing modes.
///
/// UNINDEXED "Normal" load / store. The effective address is already
/// integer result type.
/// ZEXTLOAD loads the integer operand and zero extends it to a larger
/// integer result type.
- /// EXTLOAD is used for three things: floating point extending loads,
+ /// EXTLOAD is used for three things: floating point extending loads,
/// integer extending loads [the top bits are undefined], and vector
/// extending loads [load into low elt].
///
CondCode getSetCCAndOperation(CondCode Op1, CondCode Op2, bool isInteger);
//===--------------------------------------------------------------------===//
- /// CvtCode enum - This enum defines the various converts CONVERT_RNDSAT
+ /// CvtCode enum - This enum defines the various converts CONVERT_RNDSAT
/// supports.
enum CvtCode {
CVT_FF, // Float from Float
/// getValueType - Return the ValueType of the referenced return value.
///
- inline MVT getValueType() const;
+ inline EVT getValueType() const;
/// getValueSizeInBits - Returns the size of the value in bits.
///
inline unsigned getNumOperands() const;
inline const SDValue &getOperand(unsigned i) const;
inline uint64_t getConstantOperandVal(unsigned i) const;
+ inline bool isTargetMemoryOpcode() const;
inline bool isTargetOpcode() const;
inline bool isMachineOpcode() const;
inline unsigned getMachineOpcode() const;
+ inline const DebugLoc getDebugLoc() const;
+
-
/// reachesChainWithoutSideEffects - Return true if this operand (which must
- /// be a chain) reaches the specified operand without crossing any
+ /// be a chain) reaches the specified operand without crossing any
/// 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(SDValue Dest,
+ bool reachesChainWithoutSideEffects(SDValue Dest,
unsigned Depth = 2) const;
-
+
/// use_empty - Return true if there are no nodes using value ResNo
/// of Node.
///
template<> struct DenseMapInfo<SDValue> {
- static inline SDValue getEmptyKey() {
- return SDValue((SDNode*)-1, -1U);
+ static inline SDValue getEmptyKey() {
+ return SDValue((SDNode*)-1, -1U);
}
- static inline SDValue getTombstoneKey() {
+ static inline SDValue getTombstoneKey() {
return SDValue((SDNode*)-1, 0);
}
static unsigned getHashValue(const SDValue &Val) {
static bool isEqual(const SDValue &LHS, const SDValue &RHS) {
return LHS == RHS;
}
- static bool isPod() { return true; }
};
+template <> struct isPodLike<SDValue> { static const bool value = true; };
+
/// simplify_type specializations - Allow casting operators to work directly on
/// SDValues as if they were SDNode*'s.
SDValue Val;
/// User - The user of this value.
SDNode *User;
- /// Prev, Next - Pointers to the uses list of the SDNode referred by
+ /// Prev, Next - Pointers to the uses list of the SDNode referred by
/// this operand.
SDUse **Prev, *Next;
/// 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; }
/// getResNo - Convenience function for get().getResNo().
unsigned getResNo() const { return Val.getResNo(); }
/// getValueType - Convenience function for get().getValueType().
- MVT getValueType() const { return Val.getValueType(); }
+ EVT getValueType() const { return Val.getValueType(); }
/// operator== - Convenience function for get().operator==
bool operator==(const SDValue &V) const {
return Val == V;
}
-
+
/// operator!= - Convenience function for get().operator!=
bool operator!=(const SDValue &V) const {
return Val != V;
private:
/// NodeType - The operation that this node performs.
///
- short NodeType;
-
+ int16_t NodeType;
+
/// OperandsNeedDelete - This is true if OperandList was new[]'d. If true,
/// then they will be delete[]'d when the node is destroyed.
- unsigned short OperandsNeedDelete : 1;
+ uint16_t 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;
+ uint16_t SubclassData : 15;
private:
/// NodeId - Unique id per SDNode in the DAG.
/// OperandList - The values that are used by this operation.
///
SDUse *OperandList;
-
+
/// ValueList - The types of the values this node defines. SDNode's may
/// define multiple values simultaneously.
- const MVT *ValueList;
+ const EVT *ValueList;
- /// NumOperands/NumValues - The number of entries in the Operand/Value list.
- unsigned short NumOperands, NumValues;
-
/// UseList - List of uses for this SDNode.
SDUse *UseList;
+ /// NumOperands/NumValues - The number of entries in the Operand/Value list.
+ unsigned short NumOperands, NumValues;
+
+ /// debugLoc - source line information.
+ DebugLoc debugLoc;
+
/// getValueTypeList - Return a pointer to the specified value type.
- static const MVT *getValueTypeList(MVT VT);
+ static const EVT *getValueTypeList(EVT VT);
friend class SelectionDAG;
friend struct ilist_traits<SDNode>;
unsigned getOpcode() const { return (unsigned short)NodeType; }
/// isTargetOpcode - Test if this node has a target-specific opcode (in the
- /// <target>ISD namespace).
+ /// \<target\>ISD namespace).
bool isTargetOpcode() const { return NodeType >= ISD::BUILTIN_OP_END; }
+ /// isTargetMemoryOpcode - Test if this node has a target-specific
+ /// memory-referencing opcode (in the \<target\>ISD namespace and
+ /// greater than FIRST_TARGET_MEMORY_OPCODE).
+ bool isTargetMemoryOpcode() const {
+ return NodeType >= ISD::FIRST_TARGET_MEMORY_OPCODE;
+ }
+
/// isMachineOpcode - Test if this node has a post-isel opcode, directly
/// corresponding to a MachineInstr opcode.
bool isMachineOpcode() const { return NodeType < 0; }
/// hasOneUse - Return true if there is exactly one use of this node.
///
bool hasOneUse() const {
- return !use_empty() && next(use_begin()) == use_end();
+ return !use_empty() && llvm::next(use_begin()) == use_end();
}
/// use_size - Return the number of uses of this node. This method takes
/// 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.
+ /// operands that use a specific SDNode.
class use_iterator
- : public forward_iterator<SDUse, ptrdiff_t> {
+ : public std::iterator<std::forward_iterator_tag, SDUse, ptrdiff_t> {
SDUse *Op;
explicit use_iterator(SDUse *op) : Op(op) {
}
friend class SDNode;
public:
- typedef forward_iterator<SDUse, ptrdiff_t>::reference reference;
- typedef forward_iterator<SDUse, ptrdiff_t>::pointer pointer;
+ typedef std::iterator<std::forward_iterator_tag,
+ SDUse, ptrdiff_t>::reference reference;
+ typedef std::iterator<std::forward_iterator_tag,
+ SDUse, ptrdiff_t>::pointer pointer;
use_iterator(const use_iterator &I) : Op(I.Op) {}
use_iterator() : Op(0) {}
bool operator!=(const use_iterator &x) const {
return !operator==(x);
}
-
+
/// atEnd - return true if this iterator is at the end of uses list.
bool atEnd() const { return Op == 0; }
///
unsigned getNumOperands() const { return NumOperands; }
- /// getConstantOperandVal - Helper method returns the integer value of a
+ /// getConstantOperandVal - Helper method returns the integer value of a
/// ConstantSDNode operand.
uint64_t getConstantOperandVal(unsigned Num) const;
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)
+ getOperand(getNumOperands()-1).getValueType().getSimpleVT() == MVT::Flag)
return getOperand(getNumOperands()-1).getNode();
return 0;
}
/// getValueType - Return the type of a specified result.
///
- MVT getValueType(unsigned ResNo) const {
+ EVT getValueType(unsigned ResNo) const {
assert(ResNo < NumValues && "Illegal result number!");
return ValueList[ResNo];
}
return getValueType(ResNo).getSizeInBits();
}
- typedef const MVT* value_iterator;
+ typedef const EVT* value_iterator;
value_iterator value_begin() const { return ValueList; }
value_iterator value_end() const { return ValueList+NumValues; }
///
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;
+
+ /// printrFull - Print a SelectionDAG node and all children down to
+ /// the leaves. The given SelectionDAG allows target-specific nodes
+ /// to be printed in human-readable form. Unlike printr, this will
+ /// print the whole DAG, including children that appear multiple
+ /// times.
+ ///
+ void printrFull(raw_ostream &O, const SelectionDAG *G = 0) const;
+
+ /// printrWithDepth - Print a SelectionDAG node and children up to
+ /// depth "depth." The given SelectionDAG allows target-specific
+ /// nodes to be printed in human-readable form. Unlike printr, this
+ /// will print children that appear multiple times wherever they are
+ /// used.
+ ///
+ void printrWithDepth(raw_ostream &O, const SelectionDAG *G = 0,
+ unsigned depth = 100) const;
+
+
+ /// dump - Dump this node, for debugging.
void dump() const;
+
+ /// dumpr - Dump (recursively) this node and its use-def subgraph.
+ void dumpr() const;
+
+ /// dump - Dump this node, for debugging.
+ /// The given SelectionDAG allows target-specific nodes to be printed
+ /// in human-readable form.
void dump(const SelectionDAG *G) const;
+ /// dumpr - Dump (recursively) this node and its use-def subgraph.
+ /// The given SelectionDAG allows target-specific nodes to be printed
+ /// in human-readable form.
+ void dumpr(const SelectionDAG *G) const;
+
+ /// dumprFull - printrFull to dbgs(). The given SelectionDAG allows
+ /// target-specific nodes to be printed in human-readable form.
+ /// Unlike dumpr, this will print the whole DAG, including children
+ /// that appear multiple times.
+ ///
+ void dumprFull(const SelectionDAG *G = 0) const;
+
+ /// dumprWithDepth - printrWithDepth to dbgs(). The given
+ /// SelectionDAG allows target-specific nodes to be printed in
+ /// human-readable form. Unlike dumpr, this will print children
+ /// that appear multiple times wherever they are used.
+ ///
+ void dumprWithDepth(const SelectionDAG *G = 0, unsigned depth = 100) const;
+
+
static bool classof(const SDNode *) { return true; }
/// Profile - Gather unique data for the node.
void addUse(SDUse &U) { U.addToList(&UseList); }
protected:
- static SDVTList getSDVTList(MVT VT) {
+ static SDVTList getSDVTList(EVT VT) {
SDVTList Ret = { getValueTypeList(VT), 1 };
return Ret;
}
- SDNode(unsigned Opc, SDVTList VTs, const SDValue *Ops, unsigned NumOps)
+ 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),
+ ValueList(VTs.VTs), UseList(NULL),
NumOperands(NumOps), NumValues(VTs.NumVTs),
- UseList(NULL) {
+ debugLoc(dl) {
for (unsigned i = 0; i != NumOps; ++i) {
OperandList[i].setUser(this);
OperandList[i].setInitial(Ops[i]);
}
+ checkForCycles(this);
}
/// This constructor adds no operands itself; operands can be
/// set later with InitOperands.
- SDNode(unsigned Opc, SDVTList VTs)
+ SDNode(unsigned Opc, const DebugLoc dl, SDVTList VTs)
: NodeType(Opc), OperandsNeedDelete(false), SubclassData(0),
- NodeId(-1), OperandList(0), ValueList(VTs.VTs),
+ NodeId(-1), OperandList(0), ValueList(VTs.VTs), UseList(NULL),
NumOperands(0), NumValues(VTs.NumVTs),
- UseList(NULL) {}
-
+ 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;
+ checkForCycles(this);
}
/// InitOperands - Initialize the operands list of this with 2 operands.
Ops[1].setInitial(Op1);
NumOperands = 2;
OperandList = Ops;
+ checkForCycles(this);
}
/// InitOperands - Initialize the operands list of this with 3 operands.
Ops[2].setInitial(Op2);
NumOperands = 3;
OperandList = Ops;
+ checkForCycles(this);
}
/// InitOperands - Initialize the operands list of this with 4 operands.
Ops[3].setInitial(Op3);
NumOperands = 4;
OperandList = Ops;
+ checkForCycles(this);
}
/// InitOperands - Initialize the operands list of this with N operands.
}
NumOperands = N;
OperandList = Ops;
+ checkForCycles(this);
}
/// DropOperands - Release the operands and set this node to have
inline unsigned SDValue::getOpcode() const {
return Node->getOpcode();
}
-inline MVT SDValue::getValueType() const {
+inline EVT SDValue::getValueType() const {
return Node->getValueType(ResNo);
}
inline unsigned SDValue::getNumOperands() const {
inline bool SDValue::isTargetOpcode() const {
return Node->isTargetOpcode();
}
+inline bool SDValue::isTargetMemoryOpcode() const {
+ return Node->isTargetMemoryOpcode();
+}
inline bool SDValue::isMachineOpcode() const {
return Node->isMachineOpcode();
}
inline bool SDValue::hasOneUse() const {
return Node->hasNUsesOfValue(1, ResNo);
}
+inline const DebugLoc SDValue::getDebugLoc() const {
+ return Node->getDebugLoc();
+}
// Define inline functions from the SDUse class.
class UnarySDNode : public SDNode {
SDUse Op;
public:
- UnarySDNode(unsigned Opc, SDVTList VTs, SDValue X)
- : SDNode(Opc, VTs) {
+ UnarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X)
+ : SDNode(Opc, dl, VTs) {
InitOperands(&Op, X);
}
};
class BinarySDNode : public SDNode {
SDUse Ops[2];
public:
- BinarySDNode(unsigned Opc, SDVTList VTs, SDValue X, SDValue Y)
- : SDNode(Opc, VTs) {
+ BinarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X, SDValue Y)
+ : SDNode(Opc, dl, VTs) {
InitOperands(Ops, X, Y);
}
};
class TernarySDNode : public SDNode {
SDUse Ops[3];
public:
- TernarySDNode(unsigned Opc, SDVTList VTs, SDValue X, SDValue Y,
+ TernarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X, SDValue Y,
SDValue Z)
- : SDNode(Opc, VTs) {
+ : SDNode(Opc, dl, VTs) {
InitOperands(Ops, X, Y, Z);
}
};
#else
explicit HandleSDNode(SDValue X)
#endif
- : SDNode(ISD::HANDLENODE, getSDVTList(MVT::Other)) {
+ : SDNode(ISD::HANDLENODE, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)) {
InitOperands(&Op, X);
}
- ~HandleSDNode();
+ ~HandleSDNode();
const SDValue &getValue() const { return Op; }
};
class MemSDNode : public SDNode {
private:
// MemoryVT - VT of in-memory value.
- MVT MemoryVT;
+ EVT MemoryVT;
- //! SrcValue - Memory location for alias analysis.
- const Value *SrcValue;
-
- //! SVOffset - Memory location offset. Note that base is defined in MemSDNode
- int SVOffset;
-
- /// Flags - the low bit indicates whether this is a volatile reference;
- /// the remainder is a log2 encoding of the alignment in bytes.
- unsigned Flags;
+protected:
+ /// MMO - Memory reference information.
+ MachineMemOperand *MMO;
public:
- MemSDNode(unsigned Opc, SDVTList VTs, MVT MemoryVT,
- const Value *srcValue, int SVOff,
- unsigned alignment, bool isvolatile);
+ MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, EVT MemoryVT,
+ MachineMemOperand *MMO);
- MemSDNode(unsigned Opc, SDVTList VTs, const SDValue *Ops, unsigned NumOps,
- MVT MemoryVT, const Value *srcValue, int SVOff,
- unsigned alignment, bool isvolatile);
+ MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, const SDValue *Ops,
+ unsigned NumOps, EVT MemoryVT, MachineMemOperand *MMO);
+
+ bool readMem() const { return MMO->isLoad(); }
+ bool writeMem() const { return MMO->isStore(); }
/// Returns alignment and volatility of the memory access
- unsigned getAlignment() const { return (1u << (Flags >> 1)) >> 1; }
- bool isVolatile() const { return Flags & 1; }
-
+ unsigned getOriginalAlignment() const {
+ return MMO->getBaseAlignment();
+ }
+ unsigned getAlignment() const {
+ return MMO->getAlignment();
+ }
+
+ /// getRawSubclassData - Return the SubclassData value, which contains an
+ /// encoding of the volatile flag, as well as bits used by subclasses. This
+ /// function should only be used to compute a FoldingSetNodeID value.
+ unsigned getRawSubclassData() const {
+ return SubclassData;
+ }
+
+ bool isVolatile() const { return (SubclassData >> 5) & 1; }
+
/// Returns the SrcValue and offset that describes the location of the access
- const Value *getSrcValue() const { return SrcValue; }
- int getSrcValueOffset() const { return SVOffset; }
-
+ const Value *getSrcValue() const { return MMO->getValue(); }
+ int64_t getSrcValueOffset() const { return MMO->getOffset(); }
+
/// getMemoryVT - Return the type of the in-memory value.
- MVT getMemoryVT() const { return MemoryVT; }
-
+ EVT getMemoryVT() const { return MemoryVT; }
+
/// getMemOperand - Return a MachineMemOperand object describing the memory
/// reference performed by operation.
- MachineMemOperand getMemOperand() const;
+ MachineMemOperand *getMemOperand() const { return MMO; }
+
+ /// refineAlignment - Update this MemSDNode's MachineMemOperand information
+ /// to reflect the alignment of NewMMO, if it has a greater alignment.
+ /// This must only be used when the new alignment applies to all users of
+ /// this MachineMemOperand.
+ void refineAlignment(const MachineMemOperand *NewMMO) {
+ MMO->refineAlignment(NewMMO);
+ }
const SDValue &getChain() const { return getOperand(0); }
const SDValue &getBasePtr() const {
return getOperand(getOpcode() == ISD::STORE ? 2 : 1);
}
- /// getRawFlags - Represent the flags as a bunch of bits.
- ///
- unsigned getRawFlags() const { return Flags; }
-
// Methods to support isa and dyn_cast
static bool classof(const MemSDNode *) { return true; }
static bool classof(const SDNode *N) {
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();
- }
+ N->isTargetMemoryOpcode();
+ }
};
/// AtomicSDNode - A SDNode reprenting atomic operations.
///
class AtomicSDNode : public MemSDNode {
SDUse Ops[4];
-
+
public:
// Opc: opcode for atomic
// VTL: value type list
// Swp: swap value
// SrcVal: address to update as a Value (used for MemOperand)
// Align: alignment of memory
- AtomicSDNode(unsigned Opc, SDVTList VTL, MVT MemVT,
+ AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
SDValue Chain, SDValue Ptr,
- SDValue Cmp, SDValue Swp, const Value* SrcVal,
- unsigned Align=0)
- : MemSDNode(Opc, VTL, MemVT, SrcVal, /*SVOffset=*/0,
- Align, /*isVolatile=*/true) {
+ SDValue Cmp, SDValue Swp, MachineMemOperand *MMO)
+ : MemSDNode(Opc, dl, VTL, MemVT, MMO) {
+ assert(readMem() && "Atomic MachineMemOperand is not a load!");
+ assert(writeMem() && "Atomic MachineMemOperand is not a store!");
InitOperands(Ops, Chain, Ptr, Cmp, Swp);
}
- AtomicSDNode(unsigned Opc, SDVTList VTL, MVT MemVT,
- SDValue Chain, SDValue Ptr,
- SDValue Val, const Value* SrcVal, unsigned Align=0)
- : MemSDNode(Opc, VTL, MemVT, SrcVal, /*SVOffset=*/0,
- Align, /*isVolatile=*/true) {
+ AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
+ SDValue Chain, SDValue Ptr,
+ SDValue Val, MachineMemOperand *MMO)
+ : MemSDNode(Opc, dl, VTL, MemVT, MMO) {
+ assert(readMem() && "Atomic MachineMemOperand is not a load!");
+ assert(writeMem() && "Atomic MachineMemOperand is not a store!");
InitOperands(Ops, Chain, Ptr, Val);
}
-
+
const SDValue &getBasePtr() const { return getOperand(1); }
const SDValue &getVal() const { return getOperand(2); }
- bool isCompareAndSwap() const {
- unsigned Op = getOpcode();
+ bool isCompareAndSwap() const {
+ unsigned Op = getOpcode();
return Op == ISD::ATOMIC_CMP_SWAP;
}
}
};
-/// MemIntrinsicSDNode - This SDNode is used for target intrinsic that touches
-/// memory and need an associated memory operand.
-///
+/// MemIntrinsicSDNode - This SDNode is used for target intrinsics that touch
+/// memory and need an associated MachineMemOperand. Its opcode may be
+/// INTRINSIC_VOID, INTRINSIC_W_CHAIN, or a target-specific opcode with a
+/// value not less than FIRST_TARGET_MEMORY_OPCODE.
class MemIntrinsicSDNode : public MemSDNode {
- bool ReadMem; // Intrinsic reads memory
- bool WriteMem; // Intrinsic writes memory
public:
- MemIntrinsicSDNode(unsigned Opc, SDVTList VTs,
+ 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, VTs, Ops, NumOps, MemoryVT, srcValue, SVO, Align, Vol),
- ReadMem(ReadMem), WriteMem(WriteMem) {
+ EVT MemoryVT, MachineMemOperand *MMO)
+ : MemSDNode(Opc, dl, VTs, Ops, NumOps, MemoryVT, MMO) {
}
- 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) {
// 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();
+ N->isTargetMemoryOpcode();
}
};
+/// ShuffleVectorSDNode - This SDNode is used to implement the code generator
+/// support for the llvm IR shufflevector instruction. It combines elements
+/// from two input vectors into a new input vector, with the selection and
+/// ordering of elements determined by an array of integers, referred to as
+/// the shuffle mask. For input vectors of width N, mask indices of 0..N-1
+/// refer to elements from the LHS input, and indices from N to 2N-1 the RHS.
+/// An index of -1 is treated as undef, such that the code generator may put
+/// any value in the corresponding element of the result.
+class ShuffleVectorSDNode : public SDNode {
+ SDUse Ops[2];
+
+ // The memory for Mask is owned by the SelectionDAG's OperandAllocator, and
+ // is freed when the SelectionDAG object is destroyed.
+ const int *Mask;
+protected:
+ friend class SelectionDAG;
+ ShuffleVectorSDNode(EVT VT, DebugLoc dl, SDValue N1, SDValue N2,
+ const int *M)
+ : SDNode(ISD::VECTOR_SHUFFLE, dl, getSDVTList(VT)), Mask(M) {
+ InitOperands(Ops, N1, N2);
+ }
+public:
+
+ void getMask(SmallVectorImpl<int> &M) const {
+ EVT VT = getValueType(0);
+ M.clear();
+ for (unsigned i = 0, e = VT.getVectorNumElements(); i != e; ++i)
+ M.push_back(Mask[i]);
+ }
+ int getMaskElt(unsigned Idx) const {
+ assert(Idx < getValueType(0).getVectorNumElements() && "Idx out of range!");
+ return Mask[Idx];
+ }
+
+ bool isSplat() const { return isSplatMask(Mask, getValueType(0)); }
+ int getSplatIndex() const {
+ assert(isSplat() && "Cannot get splat index for non-splat!");
+ return Mask[0];
+ }
+ static bool isSplatMask(const int *Mask, EVT VT);
+
+ static bool classof(const ShuffleVectorSDNode *) { return true; }
+ static bool classof(const SDNode *N) {
+ return N->getOpcode() == ISD::VECTOR_SHUFFLE;
+ }
+};
+
class ConstantSDNode : public SDNode {
const ConstantInt *Value;
-protected:
friend class SelectionDAG;
- ConstantSDNode(bool isTarget, const ConstantInt *val, MVT VT)
- : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant, getSDVTList(VT)),
- Value(val) {
+ ConstantSDNode(bool isTarget, const ConstantInt *val, EVT VT)
+ : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant,
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), Value(val) {
}
public:
class ConstantFPSDNode : public SDNode {
const ConstantFP *Value;
-protected:
friend class SelectionDAG;
- ConstantFPSDNode(bool isTarget, const ConstantFP *val, MVT VT)
+ ConstantFPSDNode(bool isTarget, const ConstantFP *val, EVT VT)
: SDNode(isTarget ? ISD::TargetConstantFP : ISD::ConstantFP,
- getSDVTList(VT)), Value(val) {
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), Value(val) {
}
public:
/// two floating point values.
/// We leave the version with the double argument here because it's just so
- /// convenient to write "2.0" and the like. Without this function we'd
+ /// 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;
}
bool isExactlyValue(const APFloat& V) const;
- bool isValueValidForType(MVT VT, const APFloat& Val);
+ bool isValueValidForType(EVT VT, const APFloat& Val);
static bool classof(const ConstantFPSDNode *) { return true; }
static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::ConstantFP ||
+ return N->getOpcode() == ISD::ConstantFP ||
N->getOpcode() == ISD::TargetConstantFP;
}
};
class GlobalAddressSDNode : public SDNode {
GlobalValue *TheGlobal;
int64_t Offset;
-protected:
+ unsigned char TargetFlags;
friend class SelectionDAG;
- GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT VT,
- int64_t o = 0);
+ GlobalAddressSDNode(unsigned Opc, const GlobalValue *GA, EVT VT,
+ int64_t o, unsigned char TargetFlags);
public:
GlobalValue *getGlobal() const { return TheGlobal; }
int64_t getOffset() const { return Offset; }
+ unsigned char getTargetFlags() const { return TargetFlags; }
+ // Return the address space this GlobalAddress belongs to.
+ unsigned getAddressSpace() const;
static bool classof(const GlobalAddressSDNode *) { return true; }
static bool classof(const SDNode *N) {
class FrameIndexSDNode : public SDNode {
int FI;
-protected:
friend class SelectionDAG;
- FrameIndexSDNode(int fi, MVT VT, bool isTarg)
- : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex, getSDVTList(VT)),
- FI(fi) {
+ FrameIndexSDNode(int fi, EVT VT, bool isTarg)
+ : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex,
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), FI(fi) {
}
public:
class JumpTableSDNode : public SDNode {
int JTI;
-protected:
+ unsigned char TargetFlags;
friend class SelectionDAG;
- JumpTableSDNode(int jti, MVT VT, bool isTarg)
- : SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable, getSDVTList(VT)),
- JTI(jti) {
+ JumpTableSDNode(int jti, EVT VT, bool isTarg, unsigned char TF)
+ : SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable,
+ DebugLoc::getUnknownLoc(), getSDVTList(VT)), JTI(jti), TargetFlags(TF) {
}
public:
-
+
int getIndex() const { return JTI; }
-
+ unsigned char getTargetFlags() const { return TargetFlags; }
+
static bool classof(const JumpTableSDNode *) { return true; }
static bool classof(const SDNode *N) {
return N->getOpcode() == ISD::JumpTable ||
MachineConstantPoolValue *MachineCPVal;
} Val;
int Offset; // It's a MachineConstantPoolValue if top bit is set.
- unsigned Alignment;
-protected:
+ unsigned Alignment; // Minimum alignment requirement of CP (not log2 value).
+ unsigned char TargetFlags;
friend class SelectionDAG;
- ConstantPoolSDNode(bool isTarget, Constant *c, MVT VT, int o=0)
+ ConstantPoolSDNode(bool isTarget, Constant *c, EVT VT, int o, unsigned Align,
+ unsigned char TF)
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
- 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,
- getSDVTList(VT)), Offset(o), Alignment(Align) {
+ DebugLoc::getUnknownLoc(),
+ getSDVTList(VT)), Offset(o), Alignment(Align), TargetFlags(TF) {
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,
- getSDVTList(VT)), Offset(o), Alignment(0) {
- assert((int)Offset >= 0 && "Offset is too large");
- Val.MachineCPVal = v;
- Offset |= 1 << (sizeof(unsigned)*8-1);
- }
- ConstantPoolSDNode(bool isTarget, MachineConstantPoolValue *v,
- MVT VT, int o, unsigned Align)
+ EVT VT, int o, unsigned Align, unsigned char TF)
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
- getSDVTList(VT)), Offset(o), Alignment(Align) {
+ DebugLoc::getUnknownLoc(),
+ getSDVTList(VT)), Offset(o), Alignment(Align), TargetFlags(TF) {
assert((int)Offset >= 0 && "Offset is too large");
Val.MachineCPVal = v;
- Offset |= 1 << (sizeof(unsigned)*8-1);
+ Offset |= 1 << (sizeof(unsigned)*CHAR_BIT-1);
}
public:
+
bool isMachineConstantPoolEntry() const {
return (int)Offset < 0;
}
int getOffset() const {
- return Offset & ~(1 << (sizeof(unsigned)*8-1));
+ return Offset & ~(1 << (sizeof(unsigned)*CHAR_BIT-1));
}
-
+
// Return the alignment of this constant pool object, which is either 0 (for
- // default alignment) or log2 of the desired value.
+ // default alignment) or the desired value.
unsigned getAlignment() const { return Alignment; }
+ unsigned char getTargetFlags() const { return TargetFlags; }
const Type *getType() const;
class BasicBlockSDNode : public SDNode {
MachineBasicBlock *MBB;
-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:
}
};
+/// BuildVectorSDNode - A "pseudo-class" with methods for operating on
+/// BUILD_VECTORs.
+class BuildVectorSDNode : public SDNode {
+ // These are constructed as SDNodes and then cast to BuildVectorSDNodes.
+ explicit BuildVectorSDNode(); // Do not implement
+public:
+ /// isConstantSplat - Check if this is a constant splat, and if so, find the
+ /// smallest element size that splats the vector. If MinSplatBits is
+ /// nonzero, the element size must be at least that large. Note that the
+ /// splat element may be the entire vector (i.e., a one element vector).
+ /// Returns the splat element value in SplatValue. Any undefined bits in
+ /// that value are zero, and the corresponding bits in the SplatUndef mask
+ /// are set. The SplatBitSize value is set to the splat element size in
+ /// bits. HasAnyUndefs is set to true if any bits in the vector are
+ /// undefined. isBigEndian describes the endianness of the target.
+ bool isConstantSplat(APInt &SplatValue, APInt &SplatUndef,
+ unsigned &SplatBitSize, bool &HasAnyUndefs,
+ unsigned MinSplatBits = 0, bool isBigEndian = false);
+
+ static inline bool classof(const BuildVectorSDNode *) { return true; }
+ static inline bool classof(const SDNode *N) {
+ return N->getOpcode() == ISD::BUILD_VECTOR;
+ }
+};
+
/// SrcValueSDNode - An SDNode that holds an arbitrary LLVM IR Value. This is
/// used when the SelectionDAG needs to make a simple reference to something
/// in the LLVM IR representation.
///
-/// Note that this is not used for carrying alias information; that is done
-/// with MemOperandSDNode, which includes a Value which is required to be a
-/// pointer, and several other fields specific to memory references.
-///
class SrcValueSDNode : public SDNode {
const Value *V;
-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.
};
-/// MemOperandSDNode - An SDNode that holds a MachineMemOperand. This is
-/// used to represent a reference to memory after ISD::LOAD
-/// and ISD::STORE have been lowered.
-///
-class MemOperandSDNode : public SDNode {
-protected:
- friend class SelectionDAG;
- /// Create a MachineMemOperand node
- explicit MemOperandSDNode(const MachineMemOperand &mo)
- : SDNode(ISD::MEMOPERAND, getSDVTList(MVT::Other)), MO(mo) {}
-
-public:
- /// MO - The contained MachineMemOperand.
- const MachineMemOperand MO;
-
- static bool classof(const MemOperandSDNode *) { return true; }
- static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::MEMOPERAND;
- }
-};
-
-
class RegisterSDNode : public SDNode {
unsigned Reg;
-protected:
friend class SelectionDAG;
- RegisterSDNode(unsigned reg, MVT VT)
- : SDNode(ISD::Register, getSDVTList(VT)), Reg(reg) {
+ RegisterSDNode(unsigned reg, EVT VT)
+ : SDNode(ISD::Register, DebugLoc::getUnknownLoc(),
+ getSDVTList(VT)), Reg(reg) {
}
public:
}
};
-class DbgStopPointSDNode : public SDNode {
- SDUse Chain;
- unsigned Line;
- unsigned Column;
- Value *CU;
-protected:
+class BlockAddressSDNode : public SDNode {
+ BlockAddress *BA;
+ unsigned char TargetFlags;
friend class SelectionDAG;
- DbgStopPointSDNode(SDValue ch, unsigned l, unsigned c,
- Value *cu)
- : SDNode(ISD::DBG_STOPPOINT, getSDVTList(MVT::Other)),
- Line(l), Column(c), CU(cu) {
- InitOperands(&Chain, ch);
+ BlockAddressSDNode(unsigned NodeTy, EVT VT, BlockAddress *ba,
+ unsigned char Flags)
+ : SDNode(NodeTy, DebugLoc::getUnknownLoc(), getSDVTList(VT)),
+ BA(ba), TargetFlags(Flags) {
}
public:
- unsigned getLine() const { return Line; }
- unsigned getColumn() const { return Column; }
- Value *getCompileUnit() const { return CU; }
+ BlockAddress *getBlockAddress() const { return BA; }
+ unsigned char getTargetFlags() const { return TargetFlags; }
- static bool classof(const DbgStopPointSDNode *) { return true; }
+ static bool classof(const BlockAddressSDNode *) { return true; }
static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::DBG_STOPPOINT;
+ return N->getOpcode() == ISD::BlockAddress ||
+ N->getOpcode() == ISD::TargetBlockAddress;
}
};
class LabelSDNode : public SDNode {
SDUse Chain;
unsigned LabelID;
-protected:
friend class SelectionDAG;
- LabelSDNode(unsigned NodeTy, SDValue ch, unsigned id)
- : SDNode(NodeTy, getSDVTList(MVT::Other)), LabelID(id) {
+ LabelSDNode(unsigned NodeTy, DebugLoc dl, SDValue ch, unsigned id)
+ : SDNode(NodeTy, dl, getSDVTList(MVT::Other)), LabelID(id) {
InitOperands(&Chain, ch);
}
public:
static bool classof(const LabelSDNode *) { return true; }
static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::DBG_LABEL ||
- N->getOpcode() == ISD::EH_LABEL;
+ return N->getOpcode() == ISD::EH_LABEL;
}
};
class ExternalSymbolSDNode : public SDNode {
const char *Symbol;
-protected:
+ unsigned char TargetFlags;
+
friend class SelectionDAG;
- ExternalSymbolSDNode(bool isTarget, const char *Sym, MVT VT)
+ ExternalSymbolSDNode(bool isTarget, const char *Sym, unsigned char TF, EVT VT)
: SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol,
- getSDVTList(VT)), Symbol(Sym) {
+ DebugLoc::getUnknownLoc(),
+ getSDVTList(VT)), Symbol(Sym), TargetFlags(TF) {
}
public:
const char *getSymbol() const { return Symbol; }
+ unsigned char getTargetFlags() const { return TargetFlags; }
static bool classof(const ExternalSymbolSDNode *) { return true; }
static bool classof(const SDNode *N) {
class CondCodeSDNode : public SDNode {
ISD::CondCode Condition;
-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:
return N->getOpcode() == ISD::CONDCODE;
}
};
-
+
/// 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, const SDValue *Ops, unsigned NumOps,
- ISD::CvtCode Code)
- : SDNode(ISD::CONVERT_RNDSAT, getSDVTList(VT), Ops, NumOps), CvtCode(Code) {
+ explicit CvtRndSatSDNode(EVT 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:
void setNest() { Flags |= One << NestOffs; }
unsigned getByValAlign() const {
- return (unsigned)
+ return (unsigned)
((One << ((Flags & ByValAlign) >> ByValAlignOffs)) / 2);
}
void setByValAlign(unsigned A) {
Flags = (Flags & ~ByValAlign) |
(uint64_t(Log2_32(A) + 1) << ByValAlignOffs);
}
-
+
bool isSplit() const { return Flags & Split; }
void setSplit() { Flags |= One << SplitOffs; }
/// getRawBits - Represent the flags as a bunch of bits.
uint64_t getRawBits() const { return Flags; }
};
-}
-/// ARG_FLAGSSDNode - Leaf node holding parameter flags.
-class ARG_FLAGSSDNode : public SDNode {
- ISD::ArgFlagsTy TheFlags;
-protected:
- friend class SelectionDAG;
- explicit ARG_FLAGSSDNode(ISD::ArgFlagsTy Flags)
- : SDNode(ISD::ARG_FLAGS, getSDVTList(MVT::Other)), TheFlags(Flags) {
- }
-public:
- ISD::ArgFlagsTy getArgFlags() const { return TheFlags; }
-
- static bool classof(const ARG_FLAGSSDNode *) { return true; }
- static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::ARG_FLAGS;
- }
-};
-
-/// 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, bool isvararg, bool istailcall, bool isinreg,
- SDVTList VTs, const SDValue *Operands, unsigned numOperands)
- : SDNode(ISD::CALL, 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); }
+ /// InputArg - This struct carries flags and type information about a
+ /// single incoming (formal) argument or incoming (from the perspective
+ /// of the caller) return value virtual register.
+ ///
+ struct InputArg {
+ ArgFlagsTy Flags;
+ EVT VT;
+ bool Used;
+
+ InputArg() : VT(MVT::Other), Used(false) {}
+ InputArg(ISD::ArgFlagsTy flags, EVT vt, bool used)
+ : Flags(flags), VT(vt), Used(used) {
+ assert(VT.isSimple() &&
+ "InputArg value type must be Simple!");
+ }
+ };
- static bool classof(const CallSDNode *) { return true; }
- static bool classof(const SDNode *N) {
- return N->getOpcode() == ISD::CALL;
- }
-};
+ /// OutputArg - This struct carries flags and a value for a
+ /// single outgoing (actual) argument or outgoing (from the perspective
+ /// of the caller) return value virtual register.
+ ///
+ struct OutputArg {
+ ArgFlagsTy Flags;
+ SDValue Val;
+ bool IsFixed;
+
+ OutputArg() : IsFixed(false) {}
+ OutputArg(ISD::ArgFlagsTy flags, SDValue val, bool isfixed)
+ : Flags(flags), Val(val), IsFixed(isfixed) {
+ assert(Val.getValueType().isSimple() &&
+ "OutputArg value type must be Simple!");
+ }
+ };
+}
-/// VTSDNode - This class is used to represent MVT's, which are used
+/// VTSDNode - This class is used to represent EVT's, which are used
/// to parameterize some operations.
class VTSDNode : public SDNode {
- MVT ValueType;
-protected:
+ EVT ValueType;
friend class SelectionDAG;
- explicit VTSDNode(MVT VT)
- : SDNode(ISD::VALUETYPE, getSDVTList(MVT::Other)), ValueType(VT) {
+ explicit VTSDNode(EVT VT)
+ : SDNode(ISD::VALUETYPE, DebugLoc::getUnknownLoc(),
+ getSDVTList(MVT::Other)), ValueType(VT) {
}
public:
- MVT getVT() const { return ValueType; }
+ EVT getVT() const { return ValueType; }
static bool classof(const VTSDNode *) { return true; }
static bool classof(const SDNode *N) {
/// LSBaseSDNode - Base class for LoadSDNode and StoreSDNode
///
class LSBaseSDNode : public MemSDNode {
-protected:
//! Operand array for load and store
/*!
\note Moving this array to the base class captures more
*/
SDUse Ops[4];
public:
- LSBaseSDNode(ISD::NodeType NodeTy, SDValue *Operands, unsigned numOperands,
- SDVTList VTs, ISD::MemIndexedMode AM, MVT VT,
- const Value *SV, int SVO, unsigned Align, bool Vol)
- : MemSDNode(NodeTy, VTs, VT, SV, SVO, Align, Vol) {
- SubclassData = AM;
+ LSBaseSDNode(ISD::NodeType NodeTy, DebugLoc dl, SDValue *Operands,
+ unsigned numOperands, SDVTList VTs, ISD::MemIndexedMode AM,
+ EVT MemVT, MachineMemOperand *MMO)
+ : MemSDNode(NodeTy, dl, VTs, MemVT, MMO) {
+ SubclassData |= AM << 2;
+ assert(getAddressingMode() == AM && "MemIndexedMode encoding error!");
InitOperands(Ops, Operands, numOperands);
- assert(Align != 0 && "Loads and stores should have non-zero aligment");
assert((getOffset().getOpcode() == ISD::UNDEF || isIndexed()) &&
"Only indexed loads and stores have a non-undef offset operand");
}
/// 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 & 7);
+ return ISD::MemIndexedMode((SubclassData >> 2) & 7);
}
/// isIndexed - Return true if this is a pre/post inc/dec load/store.
/// LoadSDNode - This class is used to represent ISD::LOAD nodes.
///
class LoadSDNode : public LSBaseSDNode {
-protected:
friend class SelectionDAG;
- LoadSDNode(SDValue *ChainPtrOff, 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) {
- SubclassData |= (unsigned short)ETy << 3;
+ LoadSDNode(SDValue *ChainPtrOff, DebugLoc dl, SDVTList VTs,
+ ISD::MemIndexedMode AM, ISD::LoadExtType ETy, EVT MemVT,
+ MachineMemOperand *MMO)
+ : LSBaseSDNode(ISD::LOAD, dl, ChainPtrOff, 3,
+ VTs, AM, MemVT, MMO) {
+ SubclassData |= (unsigned short)ETy;
+ assert(getExtensionType() == ETy && "LoadExtType encoding error!");
+ assert(readMem() && "Load MachineMemOperand is not a load!");
+ assert(!writeMem() && "Load MachineMemOperand is a store!");
}
public:
/// 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) & 3);
+ 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 {
-protected:
friend class SelectionDAG;
- StoreSDNode(SDValue *ChainValuePtrOff, 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) {
- SubclassData |= (unsigned short)isTrunc << 3;
+ StoreSDNode(SDValue *ChainValuePtrOff, DebugLoc dl, SDVTList VTs,
+ ISD::MemIndexedMode AM, bool isTrunc, EVT MemVT,
+ MachineMemOperand *MMO)
+ : LSBaseSDNode(ISD::STORE, dl, ChainValuePtrOff, 4,
+ VTs, AM, MemVT, MMO) {
+ SubclassData |= (unsigned short)isTrunc;
+ assert(isTruncatingStore() == isTrunc && "isTrunc encoding error!");
+ assert(!readMem() && "Store MachineMemOperand is a load!");
+ assert(writeMem() && "Store MachineMemOperand is not a store!");
}
public:
/// 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 >> 3) & 1; }
+ 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;
}
};
+/// MachineSDNode - An SDNode that represents everything that will be needed
+/// to construct a MachineInstr. These nodes are created during the
+/// instruction selection proper phase.
+///
+class MachineSDNode : public SDNode {
+public:
+ typedef MachineMemOperand **mmo_iterator;
+
+private:
+ friend class SelectionDAG;
+ MachineSDNode(unsigned Opc, const DebugLoc DL, SDVTList VTs)
+ : SDNode(Opc, DL, VTs), MemRefs(0), MemRefsEnd(0) {}
+
+ /// LocalOperands - Operands for this instruction, if they fit here. If
+ /// they don't, this field is unused.
+ SDUse LocalOperands[4];
+
+ /// MemRefs - Memory reference descriptions for this instruction.
+ mmo_iterator MemRefs;
+ mmo_iterator MemRefsEnd;
+
+public:
+ mmo_iterator memoperands_begin() const { return MemRefs; }
+ mmo_iterator memoperands_end() const { return MemRefsEnd; }
+ bool memoperands_empty() const { return MemRefsEnd == MemRefs; }
+
+ /// setMemRefs - Assign this MachineSDNodes's memory reference descriptor
+ /// list. This does not transfer ownership.
+ void setMemRefs(mmo_iterator NewMemRefs, mmo_iterator NewMemRefsEnd) {
+ MemRefs = NewMemRefs;
+ MemRefsEnd = NewMemRefsEnd;
+ }
-class SDNodeIterator : public forward_iterator<SDNode, ptrdiff_t> {
+ static bool classof(const MachineSDNode *) { return true; }
+ static bool classof(const SDNode *N) {
+ return N->isMachineOpcode();
+ }
+};
+
+class SDNodeIterator : public std::iterator<std::forward_iterator_tag,
+ SDNode, ptrdiff_t> {
SDNode *Node;
unsigned Operand;
SDNodeIterator operator++(int) { // Postincrement
SDNodeIterator tmp = *this; ++*this; return tmp;
}
+ size_t operator-(SDNodeIterator Other) const {
+ assert(Node == Other.Node &&
+ "Cannot compare iterators of two different nodes!");
+ return Operand - Other.Operand;
+ }
static SDNodeIterator begin(SDNode *N) { return SDNodeIterator(N, 0); }
static SDNodeIterator end (SDNode *N) {
/// MostAlignedSDNode - The SDNode class with the greatest alignment
/// requirement.
///
-typedef ARG_FLAGSSDNode MostAlignedSDNode;
+typedef GlobalAddressSDNode MostAlignedSDNode;
namespace ISD {
/// isNormalLoad - Returns true if the specified node is a non-extending
projects / oota-llvm.git / blobdiff