#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/CodeGen/DebugLoc.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
/// 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,
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,
// 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,
TargetJumpTable,
TargetConstantPool,
TargetExternalSymbol,
+ TargetBlockAddress,
/// RESULT = INTRINSIC_WO_CHAIN(INTRINSICID, arg1, arg2, ...)
/// This node represents a target intrinsic function with no side effects.
// 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
// float value specified as operand #0. This is only for use before
// 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.
// 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
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
/// 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,
// 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
/// 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
// 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 #0 : Input chain.
// 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.
// 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,
// 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
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
/// addressing modes.
/// 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;
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.
/// 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 {
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.
/// ValueList - The types of the values this node defines. SDNode's may
/// define multiple values simultaneously.
- const MVT *ValueList;
+ const EVT *ValueList;
/// UseList - List of uses for this SDNode.
SDUse *UseList;
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>;
/// \<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
/// use_iterator - This class provides iterator support for SDUse
/// 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) {}
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; }
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;
}
OperandList[i].setUser(this);
OperandList[i].setInitial(Ops[i]);
}
+ checkForCycles(this);
}
/// This constructor adds no operands itself; operands can be
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();
}
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;
+protected:
+ /// MMO - Memory reference information.
+ MachineMemOperand *MMO;
public:
- 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, EVT MemoryVT,
+ MachineMemOperand *MMO);
MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, const SDValue *Ops,
- unsigned NumOps, MVT MemoryVT, const Value *srcValue, int SVOff,
- unsigned alignment, bool isvolatile);
+ 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 << (SubclassData >> 6)) >> 1; }
- bool isVolatile() const { return (SubclassData >> 5) & 1; }
+ unsigned getOriginalAlignment() const {
+ return MMO->getBaseAlignment();
+ }
+ unsigned getAlignment() const {
+ return MMO->getAlignment();
+ }
/// 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.
+ /// 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 {
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();
}
};
// Swp: swap value
// SrcVal: address to update as a Value (used for MemOperand)
// Align: alignment of memory
- AtomicSDNode(unsigned Opc, DebugLoc dl, 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, dl, 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, DebugLoc dl, SDVTList VTL, MVT MemVT,
+ AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
SDValue Chain, SDValue Ptr,
- SDValue Val, const Value* SrcVal, unsigned Align=0)
- : MemSDNode(Opc, dl, VTL, MemVT, SrcVal, /*SVOffset=*/0,
- Align, /*isVolatile=*/true) {
+ 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);
}
}
};
-/// 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, 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) {
+ 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)
+ ConstantSDNode(bool isTarget, const ConstantInt *val, EVT VT)
: SDNode(isTarget ? ISD::TargetConstant : ISD::Constant,
DebugLoc::getUnknownLoc(), getSDVTList(VT)), Value(val) {
}
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,
DebugLoc::getUnknownLoc(), getSDVTList(VT)), Value(val) {
}
}
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) {
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)
+ FrameIndexSDNode(int fi, EVT VT, bool isTarg)
: SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex,
DebugLoc::getUnknownLoc(), getSDVTList(VT)), FI(fi) {
}
class JumpTableSDNode : public SDNode {
int JTI;
-protected:
+ unsigned char TargetFlags;
friend class SelectionDAG;
- JumpTableSDNode(int jti, MVT VT, bool isTarg)
+ JumpTableSDNode(int jti, EVT VT, bool isTarg, unsigned char TF)
: SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable,
- DebugLoc::getUnknownLoc(), getSDVTList(VT)), JTI(jti) {
+ 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) {
} Val;
int Offset; // It's a MachineConstantPoolValue if top bit is set.
unsigned Alignment; // Minimum alignment requirement of CP (not log2 value).
-protected:
+ 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,
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,
- DebugLoc::getUnknownLoc(),
- getSDVTList(VT)), Offset(o), Alignment(Align) {
+ 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)
+ EVT VT, int o, unsigned Align, unsigned char TF)
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
DebugLoc::getUnknownLoc(),
- getSDVTList(VT)), Offset(o), Alignment(0) {
+ 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);
- }
- 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;
- 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 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
/// 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.
+ /// undefined. isBigEndian describes the endianness of the target.
bool isConstantSplat(APInt &SplatValue, APInt &SplatUndef,
unsigned &SplatBitSize, bool &HasAnyUndefs,
- unsigned MinSplatBits = 0);
+ unsigned MinSplatBits = 0, bool isBigEndian = false);
static inline bool classof(const BuildVectorSDNode *) { return true; }
static inline bool classof(const SDNode *N) {
/// 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)
};
-/// 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, DebugLoc::getUnknownLoc(),
- 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)
+ RegisterSDNode(unsigned reg, EVT VT)
: SDNode(ISD::Register, DebugLoc::getUnknownLoc(),
getSDVTList(VT)), Reg(reg) {
}
}
};
-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, DebugLoc::getUnknownLoc(),
- 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, DebugLoc dl, SDValue ch, unsigned id)
+ LabelSDNode(unsigned NodeTy, DebugLoc dl, SDValue ch, unsigned id)
: SDNode(NodeTy, dl, getSDVTList(MVT::Other)), LabelID(id) {
InitOperands(&Chain, ch);
}
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,
DebugLoc::getUnknownLoc(),
- getSDVTList(VT)), Symbol(Sym) {
+ 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, DebugLoc::getUnknownLoc(),
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, DebugLoc dl, const SDValue *Ops,
+ 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) {
/// 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, DebugLoc::getUnknownLoc(),
- 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, 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); }
+ /// 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)
+ 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
public:
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");
+ EVT MemVT, MachineMemOperand *MMO)
+ : MemSDNode(NodeTy, dl, VTs, MemVT, MMO) {
SubclassData |= AM << 2;
assert(getAddressingMode() == AM && "MemIndexedMode encoding error!");
InitOperands(Ops, Operands, numOperands);
/// LoadSDNode - This class is used to represent ISD::LOAD nodes.
///
class LoadSDNode : public LSBaseSDNode {
-protected:
friend class SelectionDAG;
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)
+ ISD::MemIndexedMode AM, ISD::LoadExtType ETy, EVT MemVT,
+ MachineMemOperand *MMO)
: LSBaseSDNode(ISD::LOAD, dl, ChainPtrOff, 3,
- VTs, AM, LVT, SV, O, Align, Vol) {
+ 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:
/// StoreSDNode - This class is used to represent ISD::STORE nodes.
///
class StoreSDNode : public LSBaseSDNode {
-protected:
friend class SelectionDAG;
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)
+ ISD::MemIndexedMode AM, bool isTrunc, EVT MemVT,
+ MachineMemOperand *MMO)
: LSBaseSDNode(ISD::STORE, dl, ChainValuePtrOff, 4,
- VTs, AM, SVT, SV, O, Align, Vol) {
+ 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:
}
};
+/// 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;
-class SDNodeIterator : public forward_iterator<SDNode, ptrdiff_t> {
+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;
+ }
+
+ 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