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Doxygenify the comments of ISD nodes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160623 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2012-07-23 09:04:00 +00:00
parent c8e41c5917
commit f4341e4155
1 changed files with 293 additions and 292 deletions
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585
include/llvm/CodeGen/ISDOpcodes.h
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@ -37,87 +37,87 @@ namespace ISD {
/// and getMachineOpcode() member functions of SDNode.
///
enum NodeType {
// 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 - 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 - This is the marker used to indicate the start of a region.
EntryToken,
// TokenFactor - This node takes multiple tokens as input and produces a
// single token result. This is used to represent the fact that the operand
// operators are independent of each other.
/// TokenFactor - This node takes multiple tokens as input and produces a
/// single token result. This is used to represent the fact that the operand
/// operators are independent of each other.
TokenFactor,
// AssertSext, AssertZext - 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 - 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.
/// Various leaf nodes.
BasicBlock, VALUETYPE, CONDCODE, Register, RegisterMask,
Constant, ConstantFP,
GlobalAddress, GlobalTLSAddress, FrameIndex,
JumpTable, ConstantPool, ExternalSymbol, BlockAddress,
// The address of the GOT
/// 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
// 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 - 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
/// 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 - 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.
/// 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.
/// 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.
/// RESULT, OUTCHAIN = EHSELECTION(INCHAIN, EXCEPTION) - This node
/// represents 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 :)
/// 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,
// RESULT, OUTCHAIN = EH_SJLJ_SETJMP(INCHAIN, buffer)
// This corresponds to the eh.sjlj.setjmp intrinsic.
// It takes an input chain and a pointer to the jump buffer as inputs
// and returns an outchain.
/// RESULT, OUTCHAIN = EH_SJLJ_SETJMP(INCHAIN, buffer)
/// This corresponds to the eh.sjlj.setjmp intrinsic.
/// It takes an input chain and a pointer to the jump buffer as inputs
/// and returns an outchain.
EH_SJLJ_SETJMP,
// OUTCHAIN = EH_SJLJ_LONGJMP(INCHAIN, buffer)
// This corresponds to the eh.sjlj.longjmp intrinsic.
// It takes an input chain and a pointer to the jump buffer as inputs
// and returns an outchain.
/// OUTCHAIN = EH_SJLJ_LONGJMP(INCHAIN, buffer)
/// This corresponds to the eh.sjlj.longjmp intrinsic.
/// It takes an input chain and a pointer to the jump buffer as inputs
/// and returns an outchain.
EH_SJLJ_LONGJMP,
// TargetConstant* - Like Constant*, but the DAG does not do any folding,
// simplification, or lowering of the constant. They are used for constants
// which are known to fit in the immediate fields of their users, or for
// carrying magic numbers which are not values which need to be materialized
// in registers.
/// TargetConstant* - Like Constant*, but the DAG does not do any folding,
/// simplification, or lowering of the constant. They are used for constants
/// which are known to fit in the immediate fields of their users, or for
/// carrying magic numbers which are not values which need to be
/// materialized in registers.
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.
/// 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.
TargetGlobalAddress,
TargetGlobalTLSAddress,
TargetFrameIndex,
@ -148,93 +148,94 @@ namespace ISD {
/// 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.
/// CopyToReg - This node has three operands: a chain, a register number to
/// set to this value, and a value.
CopyToReg,
// CopyFromReg - This node indicates that the input value is a virtual or
// physical register that is defined outside of the scope of this
// SelectionDAG. The register is available from the RegisterSDNode object.
/// CopyFromReg - This node indicates that the input value is a virtual or
/// physical register that is defined outside of the scope of this
/// SelectionDAG. The register is available from the RegisterSDNode object.
CopyFromReg,
// UNDEF - An undefined node
/// UNDEF - An undefined node.
UNDEF,
// 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
// legalization, for values that will be broken into multiple registers.
/// 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
/// legalization, for values that will be broken into multiple registers.
EXTRACT_ELEMENT,
// BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways. Given
// two values of the same integer value type, this produces a value twice as
// big. Like EXTRACT_ELEMENT, this can only be used before legalization.
/// BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways.
/// Given two values of the same integer value type, this produces a value
/// twice as big. Like EXTRACT_ELEMENT, this can only be used before
/// legalization.
BUILD_PAIR,
// MERGE_VALUES - This node takes multiple discrete operands and returns
// them all as its individual results. This nodes has exactly the same
// number of inputs and outputs. 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 - 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. 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.
/// Simple integer binary arithmetic operators.
ADD, SUB, MUL, SDIV, UDIV, SREM, UREM,
// SMUL_LOHI/UMUL_LOHI - Multiply two integers of type iN, producing
// a signed/unsigned value of type i[2*N], and return the full value as
// two results, each of type iN.
/// SMUL_LOHI/UMUL_LOHI - Multiply two integers of type iN, producing
/// a signed/unsigned value of type i[2*N], and return the full value as
/// two results, each of type iN.
SMUL_LOHI, UMUL_LOHI,
// SDIVREM/UDIVREM - Divide two integers and produce both a quotient and
// remainder result.
/// 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 - 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.
/// 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
// produce two results; the normal result of the add or sub, and the output
// carry flag. These nodes both read and write a carry flag to allow them
// to them to be chained together for add and sub of arbitrarily large
// values.
/// 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
/// produce two results; the normal result of the add or sub, and the output
/// carry flag. These nodes both read and write a carry flag to allow them
/// to them to be chained together for add and sub of arbitrarily large
/// values.
ADDE, SUBE,
// RESULT, BOOL = [SU]ADDO(LHS, RHS) - Overflow-aware nodes for addition.
// These nodes take two operands: the normal LHS and RHS to the add. They
// produce two results: the normal result of the add, and a boolean that
// indicates if an overflow occurred (*not* a flag, because it may be stored
// to memory, etc.). If the type of the boolean is not i1 then the high
// bits conform to getBooleanContents.
// These nodes are generated from the llvm.[su]add.with.overflow intrinsics.
/// RESULT, BOOL = [SU]ADDO(LHS, RHS) - Overflow-aware nodes for addition.
/// These nodes take two operands: the normal LHS and RHS to the add. They
/// produce two results: the normal result of the add, and a boolean that
/// indicates if an overflow occurred (*not* a flag, because it may be store
/// to memory, etc.). If the type of the boolean is not i1 then the high
/// bits conform to getBooleanContents.
/// These nodes are generated from llvm.[su]add.with.overflow intrinsics.
SADDO, UADDO,
// Same for subtraction
/// Same for subtraction.
SSUBO, USUBO,
// Same for multiplication
/// Same for multiplication.
SMULO, UMULO,
// Simple binary floating point operators.
/// Simple binary floating point operators.
FADD, FSUB, FMUL, FMA, FDIV, FREM,
// FCOPYSIGN(X, Y) - Return the value of X with the sign of Y. NOTE: This
// DAG node does not require that X and Y have the same type, just that they
// are both floating point. X and the result must have the same type.
// FCOPYSIGN(f32, f64) is allowed.
/// FCOPYSIGN(X, Y) - Return the value of X with the sign of Y. NOTE: This
/// DAG node does not require that X and Y have the same type, just that the
/// are both floating point. X and the result must have the same type.
/// FCOPYSIGN(f32, f64) is allowed.
FCOPYSIGN,
// INT = FGETSIGN(FP) - Return the sign bit of the specified floating point
// value as an integer 0/1 value.
/// 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
@ -292,13 +293,14 @@ namespace ISD {
/// than the vector element type, and is implicitly truncated to it.
SCALAR_TO_VECTOR,
// 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 - 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,
/// Bitwise operators - logical and, logical or, logical xor.
AND, OR, XOR,
/// Shift and rotation operations. After legalization, the type of the
/// shift amount is known to be TLI.getShiftAmountTy(). Before legalization
/// the shift amount can be any type, but care must be taken to ensure it is
@ -306,7 +308,6 @@ namespace ISD {
/// legalization, types like i1024 can occur and i8 doesn't have enough bits
/// to represent the shift amount. By convention, DAGCombine and
/// SelectionDAGBuilder forces these shift amounts to i32 for simplicity.
///
SHL, SRA, SRL, ROTL, ROTR,
/// Byte Swap and Counting operators.
@ -315,67 +316,67 @@ namespace ISD {
/// Bit counting operators with an undefined result for zero inputs.
CTTZ_ZERO_UNDEF, CTLZ_ZERO_UNDEF,
// Select(COND, TRUEVAL, FALSEVAL). If the type of the boolean COND is not
// i1 then the high bits must conform to getBooleanContents.
/// Select(COND, TRUEVAL, FALSEVAL). If the type of the boolean COND is not
/// i1 then the high bits must conform to getBooleanContents.
SELECT,
// Select with a vector condition (op #0) and two vector operands (ops #1
// and #2), returning a vector result. All vectors have the same length.
// Much like the scalar select and setcc, each bit in the condition selects
// whether the corresponding result element is taken from op #1 or op #2.
// At first, the VSELECT condition is of vXi1 type. Later, targets may change
// the condition type in order to match the VSELECT node using a a pattern.
// The condition follows the BooleanContent format of the target.
/// Select with a vector condition (op #0) and two vector operands (ops #1
/// and #2), returning a vector result. All vectors have the same length.
/// Much like the scalar select and setcc, each bit in the condition selects
/// whether the corresponding result element is taken from op #1 or op #2.
/// At first, the VSELECT condition is of vXi1 type. Later, targets may
/// change the condition type in order to match the VSELECT node using a
/// pattern. The condition follows the BooleanContent format of the target.
VSELECT,
// Select with condition operator - This selects between a true value and
// a false value (ops #2 and #3) based on the boolean result of comparing
// the lhs and rhs (ops #0 and #1) of a conditional expression with the
// condition code in op #4, a CondCodeSDNode.
/// Select with condition operator - This selects between a true value and
/// a false value (ops #2 and #3) based on the boolean result of comparing
/// the lhs and rhs (ops #0 and #1) of a conditional expression with the
/// condition code in op #4, a CondCodeSDNode.
SELECT_CC,
// SetCC operator - This evaluates to a true value iff the condition is
// true. If the result value type is not i1 then the high bits conform
// to getBooleanContents. The operands to this are the left and right
// operands to compare (ops #0, and #1) and the condition code to compare
// them with (op #2) as a CondCodeSDNode. If the operands are vector types
// then the result type must also be a vector type.
/// SetCC operator - This evaluates to a true value iff the condition is
/// true. If the result value type is not i1 then the high bits conform
/// to getBooleanContents. The operands to this are the left and right
/// operands to compare (ops #0, and #1) and the condition code to compare
/// them with (op #2) as a CondCodeSDNode. If the operands are vector types
/// then the result type must also be a vector type.
SETCC,
// SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded
// integer shift operations, just like ADD/SUB_PARTS. The operation
// ordering is:
// [Lo,Hi] = op [LoLHS,HiLHS], Amt
/// SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded
/// integer shift operations, just like ADD/SUB_PARTS. The operation
/// ordering is:
/// [Lo,Hi] = op [LoLHS,HiLHS], Amt
SHL_PARTS, SRA_PARTS, SRL_PARTS,
// Conversion operators. These are all single input single output
// operations. For all of these, the result type must be strictly
// wider or narrower (depending on the operation) than the source
// type.
/// Conversion operators. These are all single input single output
/// operations. For all of these, the result type must be strictly
/// wider or narrower (depending on the operation) than the source
/// type.
// SIGN_EXTEND - Used for integer types, replicating the sign bit
// into new bits.
/// SIGN_EXTEND - Used for integer types, replicating the sign bit
/// into new bits.
SIGN_EXTEND,
// ZERO_EXTEND - Used for integer types, zeroing the new bits.
/// ZERO_EXTEND - Used for integer types, zeroing the new bits.
ZERO_EXTEND,
// ANY_EXTEND - Used for integer types. The high bits are undefined.
/// ANY_EXTEND - Used for integer types. The high bits are undefined.
ANY_EXTEND,
// TRUNCATE - Completely drop the high bits.
/// TRUNCATE - Completely drop the high bits.
TRUNCATE,
// [SU]INT_TO_FP - These operators convert integers (whose interpreted sign
// depends on the first letter) to floating point.
/// [SU]INT_TO_FP - These operators convert integers (whose interpreted sign
/// depends on the first letter) to floating point.
SINT_TO_FP,
UINT_TO_FP,
// SIGN_EXTEND_INREG - This operator atomically performs a SHL/SRA pair to
// sign extend a small value in a large integer register (e.g. sign
// extending the low 8 bits of a 32-bit register to fill the top 24 bits
// with the 7th bit). The size of the smaller type is indicated by the 1th
// operand, a ValueType node.
/// SIGN_EXTEND_INREG - This operator atomically performs a SHL/SRA pair to
/// sign extend a small value in a large integer register (e.g. sign
/// extending the low 8 bits of a 32-bit register to fill the top 24 bits
/// with the 7th bit). The size of the smaller type is indicated by the 1th
/// operand, a ValueType node.
SIGN_EXTEND_INREG,
/// FP_TO_[US]INT - Convert a floating point value to a signed or unsigned
@ -396,12 +397,12 @@ namespace ISD {
/// 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
// 1 Round to nearest
// 2 Round to +inf
// 3 Round to -inf
/// FLT_ROUNDS_ - Returns current rounding mode:
/// -1 Undefined
/// 0 Round to 0
/// 1 Round to nearest
/// 2 Round to +inf
/// 3 Round to -inf
FLT_ROUNDS_,
/// X = FP_ROUND_INREG(Y, VT) - This operator takes an FP register, and
@ -414,211 +415,211 @@ namespace ISD {
/// X = FP_EXTEND(Y) - Extend a smaller FP type into a larger FP type.
FP_EXTEND,
// BITCAST - 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().
/// BITCAST - 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().
BITCAST,
// CONVERT_RNDSAT - This operator is used to support various conversions
// between various types (float, signed, unsigned and vectors of those
// types) with rounding and saturation. NOTE: Avoid using this operator as
// most target don't support it and the operator might be removed in the
// future. It takes the following arguments:
// 0) value
// 1) dest type (type to convert to)
// 2) src type (type to convert from)
// 3) rounding imm
// 4) saturation imm
// 5) ISD::CvtCode indicating the type of conversion to do
/// CONVERT_RNDSAT - This operator is used to support various conversions
/// between various types (float, signed, unsigned and vectors of those
/// types) with rounding and saturation. NOTE: Avoid using this operator as
/// most target don't support it and the operator might be removed in the
/// future. It takes the following arguments:
/// 0) value
/// 1) dest type (type to convert to)
/// 2) src type (type to convert from)
/// 3) rounding imm
/// 4) saturation imm
/// 5) ISD::CvtCode indicating the type of conversion to do
CONVERT_RNDSAT,
// FP16_TO_FP32, FP32_TO_FP16 - These operators are used to perform
// promotions and truncation for half-precision (16 bit) floating
// numbers. We need special nodes since FP16 is a storage-only type with
// special semantics of operations.
/// FP16_TO_FP32, FP32_TO_FP16 - These operators are used to perform
/// promotions and truncation for half-precision (16 bit) floating
/// numbers. We need special nodes since FP16 is a storage-only type with
/// special semantics of operations.
FP16_TO_FP32, FP32_TO_FP16,
// FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW,
// FLOG, FLOG2, FLOG10, FEXP, FEXP2,
// FCEIL, FTRUNC, FRINT, FNEARBYINT, FFLOOR - Perform various unary floating
// point operations. These are inspired by libm.
/// FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW,
/// FLOG, FLOG2, FLOG10, FEXP, FEXP2,
/// FCEIL, FTRUNC, FRINT, FNEARBYINT, FFLOOR - Perform various unary
/// floating point operations. These are inspired by libm.
FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW,
FLOG, FLOG2, FLOG10, FEXP, FEXP2,
FCEIL, FTRUNC, FRINT, FNEARBYINT, FFLOOR,
// LOAD and STORE have token chains as their first operand, then the same
// operands as an LLVM load/store instruction, then an offset node that
// is added / subtracted from the base pointer to form the address (for
// indexed memory ops).
/// 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
/// indexed memory ops).
LOAD, STORE,
// DYNAMIC_STACKALLOC - Allocate some number of bytes on the stack aligned
// to a specified boundary. This node always has two return values: a new
// stack pointer value and a chain. The first operand is the token chain,
// the second is the number of bytes to allocate, and the third is the
// alignment boundary. The size is guaranteed to be a multiple of the stack
// alignment, and the alignment is guaranteed to be bigger than the stack
// alignment (if required) or 0 to get standard stack alignment.
/// DYNAMIC_STACKALLOC - Allocate some number of bytes on the stack aligned
/// to a specified boundary. This node always has two return values: a new
/// stack pointer value and a chain. The first operand is the token chain,
/// the second is the number of bytes to allocate, and the third is the
/// alignment boundary. The size is guaranteed to be a multiple of the
/// stack alignment, and the alignment is guaranteed to be bigger than the
/// stack alignment (if required) or 0 to get standard stack alignment.
DYNAMIC_STACKALLOC,
// Control flow instructions. These all have token chains.
/// Control flow instructions. These all have token chains.
// BR - Unconditional branch. The first operand is the chain
// operand, the second is the MBB to branch to.
/// BR - Unconditional branch. The first operand is the chain
/// operand, the second is the MBB to branch to.
BR,
// BRIND - Indirect branch. The first operand is the chain, the second
// is the value to branch to, which must be of the same type as the target's
// pointer type.
/// BRIND - Indirect branch. The first operand is the chain, the second
/// is the value to branch to, which must be of the same type as the
/// target's pointer type.
BRIND,
// BR_JT - Jumptable branch. The first operand is the chain, the second
// is the jumptable index, the last one is the jumptable entry index.
/// BR_JT - Jumptable branch. The first operand is the chain, the second
/// is the jumptable index, the last one is the jumptable entry index.
BR_JT,
// BRCOND - Conditional branch. The first operand is the chain, the
// second is the condition, the third is the block to branch to if the
// condition is true. If the type of the condition is not i1, then the
// high bits must conform to getBooleanContents.
/// BRCOND - Conditional branch. The first operand is the chain, the
/// second is the condition, the third is the block to branch to if the
/// condition is true. If the type of the condition is not i1, then the
/// high bits must conform to getBooleanContents.
BRCOND,
// BR_CC - Conditional branch. The behavior is like that of SELECT_CC, in
// that the condition is represented as condition code, and two nodes to
// 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 - Conditional branch. The behavior is like that of SELECT_CC, in
/// that the condition is represented as condition code, and two nodes to
/// 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,
// 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 #1 : a ExternalSymbolSDNode with a pointer to the asm string.
// Operand #2 : a MDNodeSDNode with the !srcloc metadata.
// Operand #3 : HasSideEffect, IsAlignStack bits.
// After this, it is followed by a list of operands with this format:
// ConstantSDNode: Flags that encode whether it is a mem or not, the
// of operands that follow, etc. See InlineAsm.h.
// ... however many operands ...
// Operand #last: Optional, an incoming flag.
//
// The variable width operands are required to represent target addressing
// modes as a single "operand", even though they may have multiple
// SDOperands.
/// 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 #1 : a ExternalSymbolSDNode with a pointer to the asm string.
/// Operand #2 : a MDNodeSDNode with the !srcloc metadata.
/// Operand #3 : HasSideEffect, IsAlignStack bits.
/// After this, it is followed by a list of operands with this format:
/// ConstantSDNode: Flags that encode whether it is a mem or not, the
/// of operands that follow, etc. See InlineAsm.h.
/// ... however many operands ...
/// Operand #last: Optional, an incoming flag.
///
/// The variable width operands are required to represent target addressing
/// modes as a single "operand", even though they may have multiple
/// SDOperands.
INLINEASM,
// 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.
/// 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.
EH_LABEL,
// 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 - 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 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
// target and not touched by the DAG optimizers.
// CALLSEQ_START..CALLSEQ_END pairs may not be nested.
/// 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 target and not touched by the DAG optimizers.
/// 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 four operands: an input chain, a pointer, a SRCVALUE,
// and the alignment. It returns a pair of values: the vaarg value and a
// new chain.
/// VAARG - VAARG has four operands: an input chain, a pointer, a SRCVALUE,
/// and the alignment. 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 - VACOPY has 5 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 - VAEND and VASTART have three operands: an input chain,
/// pointer, and a SRCVALUE.
VAEND, VASTART,
// SRCVALUE - This is a node type that holds a Value* that is used to
// make reference to a value in the LLVM IR.
/// SRCVALUE - This is a node type that holds a Value* that is used to
/// make reference to a value in the LLVM IR.
SRCVALUE,
// MDNODE_SDNODE - This is a node that holdes an MDNode*, which is used to
// reference metadata in the IR.
/// MDNODE_SDNODE - This is a node that holdes an MDNode*, which is used to
/// reference metadata in the IR.
MDNODE_SDNODE,
// PCMARKER - This corresponds to the pcmarker intrinsic.
/// 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
// register (or other high accuracy low latency clock source)
/// 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
/// register (or other high accuracy low latency clock source)
READCYCLECOUNTER,
// HANDLENODE node - Used as a handle for various purposes.
/// HANDLENODE node - Used as a handle for various purposes.
HANDLENODE,
// INIT_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 'nest' parameter, a
// SRCVALUE for the trampoline and another for the nested function (allowing
// targets to access the original Function*). It produces a token chain as
// output.
/// INIT_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 'nest' parameter, a
/// SRCVALUE for the trampoline and another for the nested function
/// (allowing targets to access the original Function*).
/// It produces a token chain as output.
INIT_TRAMPOLINE,
// ADJUST_TRAMPOLINE - This corresponds to the adjust_trampoline intrinsic.
// It takes a pointer to the trampoline and produces a (possibly) new
// pointer to the same trampoline with platform-specific adjustments
// applied. The pointer it returns points to an executable block of code.
/// ADJUST_TRAMPOLINE - This corresponds to the adjust_trampoline intrinsic.
/// It takes a pointer to the trampoline and produces a (possibly) new
/// pointer to the same trampoline with platform-specific adjustments
/// applied. The pointer it returns points to an executable block of code.
ADJUST_TRAMPOLINE,
// TRAP - Trapping instruction
/// TRAP - Trapping instruction
TRAP,
// DEBUGTRAP - Trap intended to get the attention of a debugger.
/// DEBUGTRAP - Trap intended to get the attention of a debugger.
DEBUGTRAP,
// PREFETCH - This corresponds to a prefetch intrinsic. The first operand
// is the chain. The other operands are the address to prefetch,
// read / write specifier, locality specifier and instruction / data cache
// specifier.
/// PREFETCH - This corresponds to a prefetch intrinsic. The first operand
/// is the chain. The other operands are the address to prefetch,
/// read / write specifier, locality specifier and instruction / data cache
/// specifier.
PREFETCH,
// 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
// operand specifying if the barrier applies to device and uncached memory
// and produces an output chain.
/// 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
/// operand specifying if the barrier applies to device and uncached memory
/// and produces an output chain.
MEMBARRIER,
// OUTCHAIN = ATOMIC_FENCE(INCHAIN, ordering, scope)
// This corresponds to the fence instruction. It takes an input chain, and
// two integer constants: an AtomicOrdering and a SynchronizationScope.
/// OUTCHAIN = ATOMIC_FENCE(INCHAIN, ordering, scope)
/// This corresponds to the fence instruction. It takes an input chain, and
/// two integer constants: an AtomicOrdering and a SynchronizationScope.
ATOMIC_FENCE,
// Val, OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr)
// This corresponds to "load atomic" instruction.
/// Val, OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr)
/// This corresponds to "load atomic" instruction.
ATOMIC_LOAD,
// OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr, val)
// This corresponds to "store atomic" instruction.
/// OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr, val)
/// This corresponds to "store atomic" instruction.
ATOMIC_STORE,
// Val, OUTCHAIN = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
// This corresponds to the cmpxchg instruction.
/// Val, OUTCHAIN = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
/// This corresponds to the cmpxchg instruction.
ATOMIC_CMP_SWAP,
// Val, OUTCHAIN = ATOMIC_SWAP(INCHAIN, ptr, amt)
// Val, OUTCHAIN = ATOMIC_LOAD_[OpName](INCHAIN, ptr, amt)
// These correspond to the atomicrmw instruction.
/// Val, OUTCHAIN = ATOMIC_SWAP(INCHAIN, ptr, amt)
/// Val, OUTCHAIN = ATOMIC_LOAD_[OpName](INCHAIN, ptr, amt)
/// These correspond to the atomicrmw instruction.
ATOMIC_SWAP,
ATOMIC_LOAD_ADD,
ATOMIC_LOAD_SUB,
@ -793,16 +794,16 @@ namespace ISD {
/// CvtCode enum - This enum defines the various converts CONVERT_RNDSAT
/// supports.
enum CvtCode {
CVT_FF, // Float from Float
CVT_FS, // Float from Signed
CVT_FU, // Float from Unsigned
CVT_SF, // Signed from Float
CVT_UF, // Unsigned from Float
CVT_SS, // Signed from Signed
CVT_SU, // Signed from Unsigned
CVT_US, // Unsigned from Signed
CVT_UU, // Unsigned from Unsigned
CVT_INVALID // Marker - Invalid opcode
CVT_FF, /// Float from Float
CVT_FS, /// Float from Signed
CVT_FU, /// Float from Unsigned
CVT_SF, /// Signed from Float
CVT_UF, /// Unsigned from Float
CVT_SS, /// Signed from Signed
CVT_SU, /// Signed from Unsigned
CVT_US, /// Unsigned from Signed
CVT_UU, /// Unsigned from Unsigned
CVT_INVALID /// Marker - Invalid opcode
};
} // end llvm::ISD namespace