class MachineBasicBlock;
class MachineConstantPoolValue;
class SDNode;
+template <typename T> struct DenseMapKeyInfo;
template <typename T> struct simplify_type;
template <typename T> struct ilist_traits;
template<typename NodeTy, typename Traits> class iplist;
InRegOffs = 2,
StructReturn = 1<<3, ///< Hidden struct-return pointer
StructReturnOffs = 3,
+ ByVal = 1<<4, ///< Struct passed by value
+ ByValOffs = 4,
OrigAlignment = 0x1F<<27,
OrigAlignmentOffs = 27
};
// to the current function's frame or return address, an index of one to the
// parent's frame or return address, and so on.
FRAMEADDR, RETURNADDR,
+
+ // FRAME_TO_ARGS_OFFSET - This node represents offset from frame pointer to
+ // 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.
// the selection index of the exception thrown.
EHSELECTION,
+ // OUTCHAIN = EH_RETURN(INCHAIN, OFFSET, HANDLER) - This node represents
+ // 'eh_return' gcc dwarf builtin, which is used to return from
+ // exception. The general meaning is: adjust stack by OFFSET and pass
+ // execution to HANDLER. Many platform-related details also :)
+ EH_RETURN,
+
// TargetConstant* - Like Constant*, but the DAG does not do any folding or
// simplification of the constant.
TargetConstant,
// FCOPYSIGN(f32, f64) is allowed.
FCOPYSIGN,
- /// VBUILD_VECTOR(ELT1, ELT2, ELT3, ELT4,..., COUNT,TYPE) - Return a vector
- /// with the specified, possibly variable, elements. The number of elements
- /// is required to be a power of two.
- VBUILD_VECTOR,
-
- /// BUILD_VECTOR(ELT1, ELT2, ELT3, ELT4,...) - Return a vector
+ /// 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,
- /// VINSERT_VECTOR_ELT(VECTOR, VAL, IDX, COUNT,TYPE) - Given a vector
- /// VECTOR, an element ELEMENT, and a (potentially variable) index IDX,
- /// return an vector with the specified element of VECTOR replaced with VAL.
- /// COUNT and TYPE specify the type of vector, as is standard for V* nodes.
- VINSERT_VECTOR_ELT,
-
- /// INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR (a legal packed
- /// type) with the element at IDX replaced with VAL.
+ /// INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR with the element
+ /// at IDX replaced with VAL.
INSERT_VECTOR_ELT,
- /// VEXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR
- /// (an MVT::Vector value) identified by the (potentially variable) element
- /// number IDX.
- VEXTRACT_VECTOR_ELT,
-
/// EXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR
- /// (a legal vector type vector) identified by the (potentially variable)
- /// element number IDX.
+ /// identified by the (potentially variable) element number IDX.
EXTRACT_VECTOR_ELT,
- /// VVECTOR_SHUFFLE(VEC1, VEC2, SHUFFLEVEC, COUNT,TYPE) - Returns a vector,
- /// of the same type as VEC1/VEC2. SHUFFLEVEC is a VBUILD_VECTOR of
- /// constant int values 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.
- VVECTOR_SHUFFLE,
-
+ /// 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
/// (regardless of whether its datatype is legal or not) that indicate
/// of the element size of VEC1/VEC2, not in terms of bytes.
VECTOR_SHUFFLE,
- /// X = VBIT_CONVERT(Y) and X = VBIT_CONVERT(Y, COUNT,TYPE) - This node
- /// represents a conversion from or to an ISD::Vector type.
- ///
- /// This is lowered to a BIT_CONVERT of the appropriate input/output types.
- /// The input and output are required to have the same size and at least one
- /// is required to be a vector (if neither is a vector, just use
- /// BIT_CONVERT).
- ///
- /// If the result is a vector, this takes three operands (like any other
- /// vector producer) which indicate the size and type of the vector result.
- /// Otherwise it takes one input.
- VBIT_CONVERT,
-
- /// BINOP(LHS, RHS, COUNT,TYPE)
- /// Simple abstract vector operators. Unlike the integer and floating point
- /// binary operators, these nodes also take two additional operands:
- /// a constant element count, and a value type node indicating the type of
- /// the elements. The order is count, type, op0, op1. All vector opcodes,
- /// including VLOAD and VConstant must currently have count and type as
- /// their last two operands.
- VADD, VSUB, VMUL, VSDIV, VUDIV,
- VAND, VOR, VXOR,
-
- /// VSELECT(COND,LHS,RHS, COUNT,TYPE) - Select for MVT::Vector values.
- /// COND is a boolean value. This node return LHS if COND is true, RHS if
- /// COND is false.
- VSELECT,
-
/// SCALAR_TO_VECTOR(VAL) - This represents the operation of loading a
/// scalar value into the low element of the resultant vector type. The top
/// elements of the vector are undefined.
// indexed memory ops).
LOAD, STORE,
- // Abstract vector version of LOAD. VLOAD has a constant element count as
- // the first operand, followed by a value type node indicating the type of
- // the elements, a token chain, a pointer operand, and a SRCVALUE node.
- VLOAD,
-
// TRUNCSTORE - This operators truncates (for integer) or rounds (for FP) a
// value and stores it to memory in one operation. This can be used for
// either integer or floating point operands. The first four operands of
};
+template<> struct DenseMapKeyInfo<SDOperand> {
+ static inline SDOperand getEmptyKey() { return SDOperand((SDNode*)-1, -1U); }
+ static inline SDOperand getTombstoneKey() { return SDOperand((SDNode*)-1, 0);}
+ static unsigned getHashValue(const SDOperand &Val) {
+ return (unsigned)((uintptr_t)Val.Val >> 4) ^
+ (unsigned)((uintptr_t)Val.Val >> 9) + Val.ResNo;
+ }
+ static bool isPod() { return true; }
+};
+
/// simplify_type specializations - Allow casting operators to work directly on
/// SDOperands as if they were SDNode*'s.
template<> struct simplify_type<SDOperand> {
friend class SelectionDAG;
LoadSDNode(SDOperand *ChainPtrOff, SDVTList VTs,
ISD::MemIndexedMode AM, ISD::LoadExtType ETy, MVT::ValueType LVT,
- const Value *SV, int O=0, unsigned Align=1, bool Vol=false)
+ const Value *SV, int O=0, unsigned Align=0, bool Vol=false)
: SDNode(ISD::LOAD, VTs),
AddrMode(AM), ExtType(ETy), LoadedVT(LVT), SrcValue(SV), SVOffset(O),
Alignment(Align), IsVolatile(Vol) {
Ops[1] = ChainPtrOff[1]; // Ptr
Ops[2] = ChainPtrOff[2]; // Off
InitOperands(Ops, 3);
+ assert(Align != 0 && "Loads should have non-zero aligment");
assert((getOffset().getOpcode() == ISD::UNDEF ||
AddrMode != ISD::UNINDEXED) &&
"Only indexed load has a non-undef offset operand");
Ops[2] = ChainValuePtrOff[2]; // Ptr
Ops[3] = ChainValuePtrOff[3]; // Off
InitOperands(Ops, 4);
+ assert(Align != 0 && "Stores should have non-zero aligment");
assert((getOffset().getOpcode() == ISD::UNDEF ||
AddrMode != ISD::UNINDEXED) &&
"Only indexed store has a non-undef offset operand");
projects / oota-llvm.git / blobdiff