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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at
http://mozilla.org/MPL/2.0/.
# [SMDOC] LIR Opcodes
# =======================
# This file defines all LIR opcodes as well as LIR opcode class
# definitions. It is parsed by GenerateLIRFiles.py at build time to
# create LIROpsGenerated.h. Each opcode consists of a
# name and a set of attributes that are described below. Unless
# marked as required, attributes are optional.
#
# name [required]
# ====
# Opcode name.
# Possible values:
# - opcode string: used as the name for LIR opcode.
#
# gen_boilerplate
# ===============
# Used to decide to generate LIR boilerplate.
# - true (default): auto generate boilerplate for this LIR opcode
# - false: do not generate boilerplate for this LIR opcode
#
# result_type
# ===========
# Specifies the result type that is produced by this LIR instruction.
# The result type can be any of the following: WordSized, BoxedValue,
# or Int64.
# - attribute not specified (default): there is no result produced
# by this LIR instruction
# - result type: sets result type for this LIR instruction
#
# successors
# ===========
# Specifies the list of successor blocks for control instruction LIR nodes.
# Control instruction nodes inherit from LControlInstructionHelper. The
# "result_type" attribute can't be used when this attribute is present.
#
# For example:
# successors: [ifTrue, ifFalse]
#
# Will generate the following getters:
# MBasicBlock* ifTrue() const { return getSuccessor(0); }
# MBasicBlock* ifFalse() const { return getSuccessor(1); }
#
# operands
# ========
# A list of operands to the LIR node. Each operand will be
# passed into and set in the instruction's constructor. A simple getter
# will also be auto generated for the operand. Each operand in the
# following list is defined by its name and an type.
# The type can be WordSized, BoxedValue, or Int64.
#
# For example:
# operands:
# lhs: BoxedValue
# rhs: WordSized
#
# Will result in:
# explicit LInstanceOfV(const LBoxAllocation& lhs, const LAllocation& rhs)
# : LInstructionHelper(classOpcode) {
# setBoxOperand(lhsIndex, lhs);
# setOperand(rhsIndex, rhs);
# }
# const LAllocation* rhs() { return getOperand(0); }
#
# static const size_t lhsIndex = 0;
# static const size_t rhsIndex = BOX_PIECES;
#
# - attribute not specified (default): no code generated
# - list of operand names with their types: operand getters and setters
# are generated and passed into the constructor
#
# arguments
# =========
# A list of non-LIR node arguments to the LIR op class constructor
# that are passed along with the operands. The arguments require
# both a name and a full type signature for each item in the list.
#
# For example:
# offset: size_t
# type: MIRType
#
# For each argument a private variable declaration will be autogenerated
# in the LIR op class, as well as simple accessor for that variable. The
# above arguments list will result in the following declarations and
# accessors:
#
# size_t offset_;
# MIRType type_;
#
# size_t offset() const { return offset_; }
# MIRType type() const { return type_; }
#
# - attribute not specified (default): no code generated
# - argument list: argument names and their full type signature
#
# num_temps
# ========
# Specifies the number of temporary virtual registers, LDefinitions, used by
# this LIR op.
# - attribute not specified (default): number of temps is set to 0
# - number of LDefinition temps: sets number of temps max 15
#
# call_instruction
# ================
# Used to define call instructions.
# - attribute not specified (default): no code generated
# - true: generates a call to setIsCall in the op's constructor
#
# mir_op
# ======
# If a LIR instruction corresponds one-to-one with a particular MIR
# instruction, this will generate a method that returns that MIR
# instruction.
# - attribute not specified (default): no code generated
# - true: generates a method to return MIR instruction
# - mir string: returns this specified MIR instruction
#
# extra_name
# ==========
# Add a declaration for the `extraName` method.
# - attribute not specified (default): no code generated
# - true: adds the `inline const char* extraName() const;` declaration
#
# defer_init
# ==========
# Control whether or not operands and temps are initialized outside the
# constructor.
# - attribute not specified (default): operands and temps are initialized in
# the constructor.
# - true: operands and temps are not initialized in the constructor, instead
# setter definitions are added for manual initialization.
- name: Phi
gen_boilerplate: false
- name: Box
result_type: BoxedValue
operands:
payload: WordSized
arguments:
type: MIRType
extra_name: true
- name: OsiPoint
gen_boilerplate: false
- name: MoveGroup
gen_boilerplate: false
# Constant 32-bit integer.
- name: Integer
result_type: WordSized
arguments:
i32: int32_t
# Constant 64-bit integer.
- name: Integer64
result_type: Int64
arguments:
i64: int64_t
# Constant pointer.
- name: Pointer
result_type: WordSized
arguments:
gcptr: gc::Cell*
# Constant double.
- name: Double
result_type: WordSized
arguments:
value: double
# Constant float32.
- name: Float32
result_type: WordSized
arguments:
value: float
- name: Value
gen_boilerplate: false
- name: NurseryObject
result_type: WordSized
mir_op: true
# Formal argument for a function, returning a box. Formal arguments are
# initially read from the stack.
- name: Parameter
result_type: BoxedValue
# Stack offset for a word-sized immutable input value to a frame.
- name: Callee
result_type: WordSized
- name: IsConstructing
result_type: WordSized
# Jumps to the start of a basic block.
- name: Goto
successors: [target]
- name: NewArray
result_type: WordSized
num_temps: 1
mir_op: true
extra_name: true
- name: NewArrayDynamicLength
result_type: WordSized
operands:
length: WordSized
num_temps: 1
mir_op: true
- name: NewIterator
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewTypedArray
result_type: WordSized
num_temps: 2
mir_op: true
- name: NewTypedArrayDynamicLength
result_type: WordSized
operands:
length: WordSized
num_temps: 1
mir_op: true
- name: NewTypedArrayFromArray
result_type: WordSized
operands:
array: WordSized
call_instruction: true
mir_op: true
- name: NewTypedArrayFromArrayBuffer
result_type: WordSized
operands:
arrayBuffer: WordSized
byteOffset: BoxedValue
length: BoxedValue
call_instruction: true
mir_op: true
- name: BindFunction
result_type: WordSized
operands:
target: WordSized
call_instruction: true
num_temps: 2
mir_op: true
- name: NewBoundFunction
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewObject
result_type: WordSized
num_temps: 1
mir_op: true
extra_name: true
- name: NewPlainObject
result_type: WordSized
num_temps: 3
mir_op: true
- name: NewArrayObject
result_type: WordSized
num_temps: 2
mir_op: true
# Allocates a new NamedLambdaObject.
#
# This instruction generates two possible instruction sets:
# (1) An inline allocation of the call object is attempted.
# (2) Otherwise, a callVM create a new object.
#
- name: NewNamedLambdaObject
result_type: WordSized
num_temps: 1
mir_op: true
# Allocates a new CallObject.
#
# This instruction generates two possible instruction sets:
# (1) If the call object is extensible, this is a callVM to create the
# call object.
# (2) Otherwise, an inline allocation of the call object is attempted.
#
- name: NewCallObject
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewMapObject
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewSetObject
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewMapObjectFromIterable
operands:
iterable: BoxedValue
result_type: WordSized
num_temps: 2
call_instruction: true
mir_op: true
- name: NewSetObjectFromIterable
operands:
iterable: BoxedValue
result_type: WordSized
num_temps: 2
call_instruction: true
mir_op: true
- name: NewStringObject
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: InitElemGetterSetter
operands:
object: WordSized
id: BoxedValue
value: WordSized
call_instruction: true
mir_op: true
# Takes in an Object and a Value.
- name: MutateProto
operands:
object: WordSized
value: BoxedValue
call_instruction: true
- name: InitPropGetterSetter
operands:
object: WordSized
value: WordSized
call_instruction: true
mir_op: true
- name: CheckOverRecursed
mir_op: true
- name: WasmTrap
mir_op: true
- name: WasmTrapIfNull
operands:
ref: WordSized
mir_op: true
- name: WasmRefIsSubtypeOfConcrete
mir_op: true
operands:
ref: WordSized
superSTV: WordSized
result_type: WordSized
num_temps: 2
- name: WasmRefIsSubtypeOfAbstract
mir_op: true
operands:
ref: WordSized
result_type: WordSized
num_temps: 1
- name: WasmRefIsSubtypeOfConcreteAndBranch
successors: [ifTrue, ifFalse]
operands:
ref: WordSized
superSTV: WordSized
arguments:
sourceType: wasm::RefType
destType: wasm::RefType
num_temps: 2
- name: WasmRefIsSubtypeOfAbstractAndBranch
successors: [ifTrue, ifFalse]
operands:
ref: WordSized
arguments:
sourceType: wasm::RefType
destType: wasm::RefType
num_temps: 1
- name: WasmNewStructObject
mir_op: true
operands:
instance: WordSized
typeDefData: WordSized
result_type: WordSized
num_temps: 2
- name: WasmNewArrayObject
mir_op: true
operands:
instance: WordSized
numElements: WordSized
typeDefData: WordSized
result_type: WordSized
num_temps: 2
- name: ReinterpretCast
operands:
input: WordSized
result_type: WordSized
mir_op: ReinterpretCast
- name: ReinterpretCastFromI64
operands:
input: Int64
result_type: WordSized
mir_op: ReinterpretCast
- name: ReinterpretCastToI64
operands:
input: WordSized
result_type: Int64
mir_op: ReinterpretCast
- name: Rotate
result_type: WordSized
operands:
input: WordSized
count: WordSized
mir_op: true
defer_init: true
- name: RotateI64
result_type: Int64
operands:
input: Int64
count: WordSized
num_temps: 1
mir_op: Rotate
defer_init: true
- name: InterruptCheck
mir_op: true
- name: WasmStackSwitchToMain
result_type: WordSized
operands:
suspender: WordSized
fn: WordSized
data: WordSized
call_instruction: true
- name: WasmStackSwitchToSuspendable
operands:
suspender: WordSized
fn: WordSized
data: WordSized
call_instruction: true
- name: WasmStackContinueOnSuspendable
operands:
suspender: WordSized
result: WordSized
call_instruction: true
- name: WasmInterruptCheck
operands:
instance: WordSized
mir_op: true
- name: TypeOfV
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
mir_op: TypeOf
- name: TypeOfO
result_type: WordSized
operands:
object: WordSized
mir_op: TypeOf
- name: TypeOfName
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: TypeOfIsNonPrimitiveV
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
mir_op: TypeOfIs
- name: TypeOfIsNonPrimitiveO
result_type: WordSized
operands:
input: WordSized
mir_op: TypeOfIs
- name: TypeOfIsPrimitive
result_type: WordSized
operands:
input: BoxedValue
mir_op: TypeOfIs
- name: ToAsyncIter
result_type: WordSized
operands:
iterator: WordSized
nextMethod: BoxedValue
call_instruction: true
- name: ToPropertyKeyCache
result_type: BoxedValue
operands:
input: BoxedValue
mir_op: true
# Allocate an object for |new| on the caller-side,
# when there is no templateObject or prototype known
- name: CreateThis
result_type: BoxedValue
operands:
callee: WordSized
newTarget: WordSized
call_instruction: true
mir_op: true
# Allocate a new arguments object for the frame.
- name: CreateArgumentsObject
result_type: WordSized
operands:
callObject: WordSized
num_temps: 3
call_instruction: true
mir_op: true
- name: CreateInlinedArgumentsObject
gen_boilerplate: false
- name: GetInlinedArgument
gen_boilerplate: false
- name: GetInlinedArgumentHole
gen_boilerplate: false
# Get argument from arguments object.
- name: GetArgumentsObjectArg
result_type: BoxedValue
operands:
argsObject: WordSized
num_temps: 1
mir_op: true
# Set argument on arguments object.
- name: SetArgumentsObjectArg
operands:
argsObject: WordSized
value: BoxedValue
num_temps: 1
mir_op: true
# Load an element from an arguments object.
- name: LoadArgumentsObjectArg
result_type: BoxedValue
operands:
argsObject: WordSized
index: WordSized
num_temps: 1
# Load an element from an arguments object. Handles out-of-bounds accesses.
- name: LoadArgumentsObjectArgHole
result_type: BoxedValue
operands:
argsObject: WordSized
index: WordSized
num_temps: 1
# Return true if the element exists in the arguments object.
- name: InArgumentsObjectArg
result_type: WordSized
operands:
argsObject: WordSized
index: WordSized
num_temps: 1
# Return |arguments.length| unless it has been overridden.
- name: ArgumentsObjectLength
result_type: WordSized
operands:
argsObject: WordSized
# Create an array from an arguments object.
- name: ArrayFromArgumentsObject
result_type: WordSized
operands:
argsObject: WordSized
call_instruction: true
mir_op: true
# Guard that the given flags are not set on the arguments object.
- name: GuardArgumentsObjectFlags
operands:
argsObject: WordSized
num_temps: 1
mir_op: true
- name: BoundFunctionNumArgs
result_type: WordSized
operands:
object: WordSized
- name: GuardBoundFunctionIsConstructor
operands:
object: WordSized
# If the Value is an Object, return unbox(Value).
# Otherwise, return the other Object.
- name: ReturnFromCtor
result_type: WordSized
operands:
value: BoxedValue
object: WordSized
- name: BoxNonStrictThis
result_type: WordSized
operands:
value: BoxedValue
mir_op: true
- name: ImplicitThis
result_type: BoxedValue
operands:
env: WordSized
mir_op: true
# Writes a typed argument for a function call to the frame's argument vector.
- name: StackArgT
operands:
arg: WordSized
arguments:
# Index into frame-scope argument vector.
argslot: uint32_t
type: MIRType
# Writes a typed argument for a function call to the frame's argument vector.
- name: StackArgV
operands:
value: BoxedValue
arguments:
# Index into frame-scope argument vector.
argslot: uint32_t
- name: CallGeneric
gen_boilerplate: false
- name: CallKnown
gen_boilerplate: false
- name: CallNative
gen_boilerplate: false
- name: CallDOMNative
gen_boilerplate: false
- name: CallClassHook
gen_boilerplate: false
- name: Bail
- name: Unreachable
successors: []
- name: EncodeSnapshot
- name: UnreachableResultV
result_type: BoxedValue
- name: UnreachableResultT
result_type: WordSized
- name: GetDOMProperty
result_type: BoxedValue
operands:
object: WordSized
num_temps: 3
call_instruction: true
mir_op: true
- name: GetDOMMemberV
result_type: BoxedValue
operands:
object: WordSized
mir_op: GetDOMMember
- name: GetDOMMemberT
result_type: WordSized
operands:
object: WordSized
mir_op: GetDOMMember
- name: SetDOMProperty
operands:
object: WordSized
value: BoxedValue
num_temps: 3
call_instruction: true
mir_op: true
- name: LoadDOMExpandoValue
result_type: BoxedValue
operands:
proxy: WordSized
mir_op: true
- name: LoadDOMExpandoValueGuardGeneration
result_type: BoxedValue
operands:
proxy: WordSized
mir_op: true
- name: LoadDOMExpandoValueIgnoreGeneration
result_type: BoxedValue
operands:
proxy: WordSized
mir_op: true
- name: GuardDOMExpandoMissingOrGuardShape
operands:
input: BoxedValue
num_temps: 1
mir_op: true
- name: ApplyArgsGeneric
gen_boilerplate: false
- name: ApplyArgsObj
gen_boilerplate: false
- name: ApplyArrayGeneric
gen_boilerplate: false
- name: ConstructArgsGeneric
gen_boilerplate: false
- name: ConstructArrayGeneric
gen_boilerplate: false
- name: ApplyArgsNative
gen_boilerplate: false
- name: ApplyArgsObjNative
gen_boilerplate: false
- name: ApplyArrayNative
gen_boilerplate: false
- name: ConstructArgsNative
gen_boilerplate: false
- name: ConstructArrayNative
gen_boilerplate: false
# Takes in either an integer or boolean input and tests it for truthiness.
- name: TestIAndBranch
successors: [ifTrue, ifFalse]
operands:
input: WordSized
# Takes in intptr input and tests it for truthiness.
- name: TestIPtrAndBranch
successors: [ifTrue, ifFalse]
operands:
input: WordSized
# Takes in an int64 input and tests it for truthiness.
- name: TestI64AndBranch
successors: [ifTrue, ifFalse]
operands:
input: Int64
# Takes in a double input and tests it for truthiness.
- name: TestDAndBranch
successors: [ifTrue, ifFalse]
operands:
input: WordSized
# Takes in a float32 input and tests it for truthiness.
- name: TestFAndBranch
successors: [ifTrue, ifFalse]
operands:
input: WordSized
# Takes in a bigint input and tests it for truthiness.
- name: TestBIAndBranch
successors: [ifTrue, ifFalse]
operands:
input: WordSized
# Takes an object and tests it for truthiness. An object is falsy iff it
# emulates |undefined|; see js::EmulatesUndefined.
- name: TestOAndBranch
successors: [ifTruthy, ifFalsy]
operands:
input: WordSized
num_temps: 1
mir_op: Test
# Takes in a boxed value and tests it for truthiness.
- name: TestVAndBranch
successors: [ifTruthy, ifFalsy]
operands:
input: BoxedValue
num_temps: 3
mir_op: Test
# Compares two integral values of the same JS type, either integer or object.
# For objects, both operands are in registers.
- name: Compare
result_type: WordSized
operands:
left: WordSized
right: WordSized
arguments:
jsop: JSOp
mir_op: true
extra_name: true
- name: CompareI64
result_type: WordSized
operands:
left: Int64
right: Int64
arguments:
jsop: JSOp
mir_op: Compare
extra_name: true
- name: CompareI64AndBranch
successors: [ifTrue, ifFalse]
operands:
left: Int64
right: Int64
arguments:
cmpMir: MCompare*
jsop: JSOp
mir_op: Test
extra_name: true
# Compares two integral values of the same JS type, either integer or object.
# For objects, both operands are in registers.
- name: CompareAndBranch
successors: [ifTrue, ifFalse]
operands:
left: WordSized
right: WordSized
arguments:
cmpMir: MCompare*
jsop: JSOp
mir_op: Test
extra_name: true
- name: CompareD
result_type: WordSized
operands:
left: WordSized
right: WordSized
mir_op: Compare
- name: CompareF
result_type: WordSized
operands:
left: WordSized
right: WordSized
mir_op: Compare
- name: CompareDAndBranch
successors: [ifTrue, ifFalse]
operands:
left: WordSized
right: WordSized
arguments:
cmpMir: MCompare*
- name: CompareFAndBranch
successors: [ifTrue, ifFalse]
operands:
left: WordSized
right: WordSized
arguments:
cmpMir: MCompare*
- name: CompareS
result_type: WordSized
operands:
left: WordSized
right: WordSized
mir_op: Compare
- name: CompareSInline
result_type: WordSized
operands:
input: WordSized
arguments:
constant: JSLinearString*
mir_op: Compare
- name: CompareSSingle
result_type: WordSized
operands:
input: WordSized
arguments:
jsop: JSOp
constant: JSLinearString*
num_temps: 1
mir_op: Compare
- name: CompareBigInt
result_type: WordSized
operands:
left: WordSized
right: WordSized
num_temps: 3
mir_op: Compare
- name: CompareBigIntInt32
result_type: WordSized
operands:
left: WordSized
right: WordSized
num_temps: 2
mir_op: Compare
- name: CompareBigIntDouble
result_type: WordSized
operands:
left: WordSized
right: WordSized
call_instruction: true
mir_op: Compare
- name: CompareBigIntString
result_type: WordSized
operands:
left: WordSized
right: WordSized
call_instruction: true
mir_op: Compare
- name: CompareBigIntInt32AndBranch
successors: [ifTrue, ifFalse]
operands:
left: WordSized
right: WordSized
arguments:
cmpMir: MCompare*
num_temps: 2
- name: BitAndAndBranch
successors: [ifTrue, ifFalse]
operands:
left: WordSized
right: WordSized
arguments:
cond: Assembler::Condition
- name: BitAnd64AndBranch
successors: [ifTrue, ifFalse]
operands:
left: Int64
right: Int64
arguments:
cond: Assembler::Condition
# Takes a value and tests whether it is null, undefined, or is an object that
# emulates |undefined|, as determined by the JSCLASS_EMULATES_UNDEFINED class
# flag on unwrapped objects. See also js::EmulatesUndefined.
- name: IsNullOrLikeUndefinedV
result_type: WordSized
operands:
value: BoxedValue
num_temps: 1
mir_op: Compare
# Takes an object pointer and tests whether it is an object that emulates
# |undefined|, as above.
- name: IsNullOrLikeUndefinedT
result_type: WordSized
operands:
input: WordSized
mir_op: Compare
# Takes a value and tests whether it is null.
- name: IsNull
result_type: WordSized
operands:
value: BoxedValue
mir_op: Compare
# Takes a value and tests whether it is undefined.
- name: IsUndefined
result_type: WordSized
operands:
value: BoxedValue
mir_op: Compare
- name: IsNullOrLikeUndefinedAndBranchV
successors: [ifTrue, ifFalse]
operands:
value: BoxedValue
arguments:
cmpMir: MCompare*
num_temps: 2
mir_op: Test
- name: IsNullOrLikeUndefinedAndBranchT
successors: [ifTrue, ifFalse]
operands:
value: WordSized
arguments:
cmpMir: MCompare*
num_temps: 1
mir_op: Test
- name: IsNullAndBranch
successors: [ifTrue, ifFalse]
operands:
value: BoxedValue
arguments:
cmpMir: MCompare*
- name: IsUndefinedAndBranch
successors: [ifTrue, ifFalse]
operands:
value: BoxedValue
arguments:
cmpMir: MCompare*
- name: SameValueDouble
result_type: WordSized
operands:
left: WordSized
right: WordSized
num_temps: 1
- name: SameValue
result_type: WordSized
operands:
lhs: BoxedValue
rhs: BoxedValue
# Not operation on an integer.
- name: NotI
result_type: WordSized
operands:
input: WordSized
# Not operation on an intptr.
- name: NotIPtr
result_type: WordSized
operands:
input: WordSized
# Not operation on an int64.
- name: NotI64
result_type: WordSized
operands:
inputI64: Int64
# Not operation on a double.
- name: NotD
result_type: WordSized
operands:
input: WordSized
mir_op: Not
# Not operation on a float32.
- name: NotF
result_type: WordSized
operands:
input: WordSized
mir_op: Not
# Not operation on a BigInt.
- name: NotBI
result_type: WordSized
operands:
input: WordSized
mir_op: Not
# Boolean complement operation on an object.
- name: NotO
result_type: WordSized
operands:
input: WordSized
mir_op: Not
# Boolean complement operation on a value.
- name: NotV
result_type: WordSized
operands:
input: BoxedValue
num_temps: 2
mir_op: Not
# Bitwise not operation, takes a 32-bit integer as input and returning
# a 32-bit integer result as an output.
- name: BitNotI
result_type: WordSized
operands:
input: WordSized
defer_init: true
- name: BitNotI64
result_type: Int64
operands:
input: Int64
defer_init: true
# Binary bitwise operation, taking two 32-bit integers as inputs and returning
# a 32-bit integer result as an output.
- name: BitOpI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
arguments:
bitop: JSOp
extra_name: true
defer_init: true
- name: BitOpI64
result_type: Int64
operands:
lhs: Int64
rhs: Int64
arguments:
bitop: JSOp
extra_name: true
defer_init: true
# Shift operation, taking two 32-bit integers as inputs and returning
# a 32-bit integer result as an output.
- name: ShiftI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
arguments:
bitop: JSOp
mir_op: Instruction
extra_name: true
defer_init: true
- name: ShiftI64
result_type: Int64
operands:
lhs: Int64
rhs: WordSized
arguments:
bitop: JSOp
mir_op: Instruction
extra_name: true
defer_init: true
- name: SignExtendInt32
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: SignExtendIntPtr
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: SignExtendInt64
result_type: Int64
operands:
input: Int64
mir_op: true
- name: UrshD
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 1
- name: Return
gen_boilerplate: false
- name: Throw
operands:
value: BoxedValue
call_instruction: true
- name: ThrowWithStack
operands:
value: BoxedValue
stack: BoxedValue
call_instruction: true
- name: MinMaxI
result_type: WordSized
operands:
first: WordSized
second: WordSized
mir_op: MinMax
extra_name: true
- name: MinMaxD
result_type: WordSized
operands:
first: WordSized
second: WordSized
mir_op: MinMax
extra_name: true
- name: MinMaxF
result_type: WordSized
operands:
first: WordSized
second: WordSized
mir_op: MinMax
extra_name: true
- name: MinMaxArrayI
result_type: WordSized
operands:
array: WordSized
num_temps: 3
mir_op: MinMaxArray
- name: MinMaxArrayD
result_type: WordSized
operands:
array: WordSized
num_temps: 3
mir_op: MinMaxArray
# Negative of integer
- name: NegI
result_type: WordSized
operands:
input: WordSized
# Negative of an int64
- name: NegI64
result_type: Int64
operands:
input: Int64
# Negative of double
- name: NegD
result_type: WordSized
operands:
input: WordSized
# Negative of float32
- name: NegF
result_type: WordSized
operands:
input: WordSized
# Absolute value of an integer.
- name: AbsI
result_type: WordSized
operands:
input: WordSized
mir_op: Abs
# Absolute value of a double.
- name: AbsD
result_type: WordSized
operands:
input: WordSized
# Absolute value of a float32.
- name: AbsF
result_type: WordSized
operands:
input: WordSized
# Copysign for doubles.
- name: CopySignD
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
defer_init: true
# Copysign for float32.
- name: CopySignF
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
defer_init: true
# Count leading zeroes on an int32.
- name: ClzI
result_type: WordSized
operands:
input: WordSized
mir_op: Clz
# Count leading zeroes on an int64.
- name: ClzI64
result_type: Int64
operands:
input: Int64
mir_op: Clz
# Count trailing zeroes on an int32.
- name: CtzI
result_type: WordSized
operands:
input: WordSized
mir_op: Ctz
# Count trailing zeroes on an int64.
- name: CtzI64
result_type: Int64
operands:
input: Int64
mir_op: Ctz
# Count population on an int32.
- name: PopcntI
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: Popcnt
# Count population on an int64.
- name: PopcntI64
result_type: Int64
operands:
input: Int64
num_temps: 1
mir_op: Popcnt
- name: SqrtD
result_type: WordSized
operands:
input: WordSized
- name: SqrtF
result_type: WordSized
operands:
input: WordSized
- name: Atan2D
result_type: WordSized
operands:
y: WordSized
x: WordSized
call_instruction: true
- name: Hypot
gen_boilerplate: false
# Double raised to an integer power.
- name: PowI
result_type: WordSized
operands:
value: WordSized
power: WordSized
call_instruction: true
# Integer raised to an integer power.
- name: PowII
result_type: WordSized
operands:
value: WordSized
power: WordSized
num_temps: 2
mir_op: Pow
# Double raised to a double power.
- name: PowD
result_type: WordSized
operands:
value: WordSized
power: WordSized
call_instruction: true
# Constant of a power of two raised to an integer power.
- name: PowOfTwoI
result_type: WordSized
operands:
power: WordSized
arguments:
base: uint32_t
# Sign value of an integer.
- name: SignI
result_type: WordSized
operands:
input: WordSized
# Sign value of an integer.
- name: SignD
result_type: WordSized
operands:
input: WordSized
# Sign value of a double with expected int32 result.
- name: SignDI
result_type: WordSized
operands:
input: WordSized
num_temps: 1
# Sign value of a int32 with expected double result.
- name: SignID
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: MathFunctionD
result_type: WordSized
operands:
input: WordSized
call_instruction: true
mir_op: MathFunction
extra_name: true
- name: MathFunctionF
result_type: WordSized
operands:
input: WordSized
call_instruction: true
mir_op: MathFunction
extra_name: true
- name: AddI
gen_boilerplate: false
- name: AddI64
result_type: Int64
operands:
lhs: Int64
rhs: Int64
defer_init: true
- name: SubI
gen_boilerplate: false
- name: SubI64
result_type: Int64
operands:
lhs: Int64
rhs: Int64
defer_init: true
- name: MulI64
result_type: Int64
operands:
lhs: Int64
rhs: Int64
num_temps: 1
defer_init: true
# Performs an add, sub, mul, or div on two double values.
- name: MathD
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
arguments:
jsop: JSOp
extra_name: true
defer_init: true
# Performs an add, sub, mul, or div on two float values.
- name: MathF
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
arguments:
jsop: JSOp
extra_name: true
defer_init: true
- name: ModD
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: Mod
- name: ModPowTwoD
result_type: WordSized
operands:
lhs: WordSized
arguments:
divisor: uint32_t
mir_op: Mod
- name: WasmBuiltinModD
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
instance: WordSized
call_instruction: true
mir_op: true
- name: BigIntAdd
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntSub
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntMul
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntDiv
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntMod
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntPow
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntBitAnd
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntBitOr
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntBitXor
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntLsh
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntRsh
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: true
- name: BigIntIncrement
result_type: WordSized
operands:
input: WordSized
call_instruction: true
mir_op: true
- name: BigIntDecrement
result_type: WordSized
operands:
input: WordSized
call_instruction: true
mir_op: true
- name: BigIntNegate
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: BigIntBitNot
result_type: WordSized
operands:
input: WordSized
call_instruction: true
mir_op: true
- name: BigIntToIntPtr
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: IntPtrToBigInt
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: BigIntPtrAdd
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: BigIntPtrSub
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: BigIntPtrMul
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: BigIntPtrDiv
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
mir_op: true
- name: BigIntPtrDivPowTwo
result_type: WordSized
operands:
lhs: WordSized
arguments:
shift: int32_t
negativeDivisor: bool
- name: BigIntPtrMod
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
mir_op: true
- name: BigIntPtrModPowTwo
result_type: WordSized
operands:
lhs: WordSized
arguments:
shift: int32_t
num_temps: 1
- name: BigIntPtrPow
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
mir_op: true
- name: BigIntPtrBitAnd
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: BigIntPtrBitOr
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: BigIntPtrBitXor
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: BigIntPtrLsh
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
mir_op: true
- name: BigIntPtrRsh
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 2
mir_op: true
- name: BigIntPtrBitNot
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: Int32ToStringWithBase
result_type: WordSized
operands:
input: WordSized
base: WordSized
num_temps: 2
mir_op: true
- name: NumberParseInt
result_type: BoxedValue
operands:
string: WordSized
radix: WordSized
num_temps: 1
call_instruction: true
mir_op: true
- name: DoubleParseInt
result_type: WordSized
operands:
number: WordSized
num_temps: 1
mir_op: true
# Adds two string, returning a string.
- name: Concat
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 5
# Linearize a string.
- name: LinearizeString
result_type: WordSized
operands:
str: WordSized
mir_op: true
# Linearize a string before a character access.
- name: LinearizeForCharAccess
result_type: WordSized
operands:
str: WordSized
index: WordSized
mir_op: true
# Linearize a string before a code point access.
- name: LinearizeForCodePointAccess
result_type: WordSized
operands:
str: WordSized
index: WordSized
num_temps: 1
mir_op: true
# Compute the relative string index.
- name: ToRelativeStringIndex
result_type: WordSized
operands:
index: WordSized
length: WordSized
mir_op: true
# Get uint16 character code from a string.
- name: CharCodeAt
result_type: WordSized
operands:
str: WordSized
index: WordSized
num_temps: 2
# Get uint16 character code from a string. Return -1 on out-of-bounds.
- name: CharCodeAtOrNegative
result_type: WordSized
operands:
str: WordSized
index: WordSized
num_temps: 2
# Get uint32 code point from a string.
- name: CodePointAt
result_type: WordSized
operands:
str: WordSized
index: WordSized
num_temps: 2
# Get uint32 code point from a string. Return -1 on out-of-bounds.
- name: CodePointAtOrNegative
result_type: WordSized
operands:
str: WordSized
index: WordSized
num_temps: 2
# Box the input if non-negative. Otherwise return NaN.
- name: NegativeToNaN
result_type: BoxedValue
operands:
input: WordSized
# Box the input if non-negative. Otherwise return undefined.
- name: NegativeToUndefined
result_type: BoxedValue
operands:
input: WordSized
# Convert uint16 character code to a string.
- name: FromCharCode
result_type: WordSized
operands:
code: WordSized
# Convert non-negative input as a uint16 character code to a string. If the
# input is negative, return the empty string.
- name: FromCharCodeEmptyIfNegative
result_type: WordSized
operands:
code: WordSized
# Convert non-negative input as a uint16 character code to a string. If the
# input is negative, return the undefined value.
- name: FromCharCodeUndefinedIfNegative
result_type: BoxedValue
operands:
code: WordSized
# Convert uint32 code point to a string.
- name: FromCodePoint
result_type: WordSized
operands:
codePoint: WordSized
num_temps: 2
# Test if a string includes the search string.
- name: StringIncludes
result_type: WordSized
operands:
string: WordSized
searchString: WordSized
call_instruction: true
# Test if a string includes the constant search string.
- name: StringIncludesSIMD
result_type: WordSized
operands:
string: WordSized
arguments:
searchString: JSLinearString*
num_temps: 3
# Search for the first index of the search string.
- name: StringIndexOf
result_type: WordSized
operands:
string: WordSized
searchString: WordSized
call_instruction: true
# Search for the first index of the constant search string.
- name: StringIndexOfSIMD
result_type: WordSized
operands:
string: WordSized
arguments:
searchString: JSLinearString*
num_temps: 3
# Search for the last index of the search string.
- name: StringLastIndexOf
result_type: WordSized
operands:
string: WordSized
searchString: WordSized
call_instruction: true
# Test if a string starts with the search string
- name: StringStartsWith
result_type: WordSized
operands:
string: WordSized
searchString: WordSized
call_instruction: true
# Test if a string starts with the constant search string
- name: StringStartsWithInline
result_type: WordSized
operands:
string: WordSized
arguments:
searchString: JSLinearString*
num_temps: 1
# Test if a string ends with the search string
- name: StringEndsWith
result_type: WordSized
operands:
string: WordSized
searchString: WordSized
call_instruction: true
# Test if a string ends with the constant search string
- name: StringEndsWithInline
result_type: WordSized
operands:
string: WordSized
arguments:
searchString: JSLinearString*
num_temps: 1
# Calls the ToLowerCase case conversion function. Inlines the case conversion
# when possible.
- name: StringToLowerCase
result_type: WordSized
operands:
string: WordSized
num_temps: 5
mir_op: StringConvertCase
# Calls the ToLowerCase case conversion function. Inlines the case conversion
# when possible.
- name: CharCodeToLowerCase
result_type: WordSized
operands:
code: WordSized
num_temps: 1
mir_op: CharCodeConvertCase
# Calls the ToUpperCase case conversion function.
- name: StringToUpperCase
result_type: WordSized
operands:
string: WordSized
call_instruction: true
mir_op: StringConvertCase
# Calls the ToUpperCase case conversion function. Inlines the case conversion
# when possible.
- name: CharCodeToUpperCase
result_type: WordSized
operands:
code: WordSized
num_temps: 1
mir_op: CharCodeConvertCase
# Index of first non-whitespace character.
- name: StringTrimStartIndex
result_type: WordSized
operands:
string: WordSized
# Index of last non-whitespace character.
- name: StringTrimEndIndex
result_type: WordSized
operands:
string: WordSized
start: WordSized
- name: StringSplit
result_type: WordSized
operands:
string: WordSized
separator: WordSized
call_instruction: true
mir_op: true
- name: Substr
result_type: WordSized
operands:
string: WordSized
begin: WordSized
length: WordSized
num_temps: 3
mir_op: true
- name: Int32ToDouble
result_type: WordSized
operands:
input: WordSized
- name: Float32ToDouble
result_type: WordSized
operands:
input: WordSized
- name: DoubleToFloat32
result_type: WordSized
operands:
input: WordSized
- name: Int32ToFloat32
result_type: WordSized
operands:
input: WordSized
- name: DoubleToFloat16
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: DoubleToFloat32ToFloat16
result_type: WordSized
operands:
input: WordSized
num_temps: 2
- name: Float32ToFloat16
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: Int32ToFloat16
result_type: WordSized
operands:
input: WordSized
num_temps: 1
# Convert a value to a double.
- name: ValueToDouble
result_type: WordSized
operands:
input: BoxedValue
mir_op: ToDouble
# Convert a value to a float32.
- name: ValueToFloat32
result_type: WordSized
operands:
input: BoxedValue
mir_op: ToFloat32
# Convert a value to a float16.
- name: ValueToFloat16
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
mir_op: ToFloat16
# Convert a value to an int32.
- name: ValueToNumberInt32
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
mir_op: ToNumberInt32
# Convert a value to an int32 with truncation.
- name: ValueTruncateToInt32
result_type: WordSized
operands:
input: BoxedValue
num_temps: 2
mir_op: TruncateToInt32
# Convert a value to a BigInt.
- name: ValueToBigInt
result_type: WordSized
operands:
input: BoxedValue
mir_op: ToBigInt
# Convert a double to an int32.
# Input: floating-point Register
# Output: 32-bit integer
# Bailout: if the double cannot be converted to an integer.
- name: DoubleToInt32
result_type: WordSized
operands:
input: WordSized
mir_op: ToNumberInt32
# Convert a float32 to an int32.
# Input: floating-point Register
# Output: 32-bit integer
# Bailout: if the float32 cannot be converted to an integer.
- name: Float32ToInt32
result_type: WordSized
operands:
input: WordSized
mir_op: ToNumberInt32
# Convert a double to a truncated int32.
# Input: floating-point Register
# Output: 32-bit integer
- name: TruncateDToInt32
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: TruncateToInt32
# Convert a double to a truncated int32 with instance offset because we need it
# for the slow ool path.
- name: WasmBuiltinTruncateDToInt32
result_type: WordSized
operands:
input: WordSized
instance: WordSized
num_temps: 1
mir_op: WasmBuiltinTruncateToInt32
# Convert a float32 to a truncated int32.
# Input: floating-point Register
# Output: 32-bit integer
- name: TruncateFToInt32
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: TruncateToInt32
# Convert a float32 to a truncated int32 with instance offset because we need
# it for the slow ool path.
- name: WasmBuiltinTruncateFToInt32
result_type: WordSized
operands:
input: WordSized
instance: WordSized
num_temps: 1
mir_op: WasmBuiltinTruncateToInt32
- name: WasmTruncateToInt32
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: WrapInt64ToInt32
result_type: WordSized
operands:
input: Int64
mir_op: true
- name: ExtendInt32ToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
# Convert a boolean value to a string.
- name: BooleanToString
result_type: WordSized
operands:
input: WordSized
mir_op: ToString
# Convert an integer hosted on one definition to a string with a function call.
- name: IntToString
result_type: WordSized
operands:
input: WordSized
mir_op: ToString
# Convert a double hosted on one definition to a string with a function call.
- name: DoubleToString
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: ToString
# Convert a primitive to a string with a function call.
- name: ValueToString
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
mir_op: ToString
# Double raised to a half power.
- name: PowHalfD
result_type: WordSized
operands:
input: WordSized
mir_op: PowHalf
- name: NaNToZero
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: OsrEntry
gen_boilerplate: false
# Materialize a Value stored in an interpreter frame for OSR.
- name: OsrValue
result_type: BoxedValue
operands:
entry: WordSized
mir_op: true
# Materialize a JSObject env chain stored in an interpreter frame for OSR.
- name: OsrEnvironmentChain
result_type: WordSized
operands:
entry: WordSized
mir_op: true
# Materialize a JSObject env chain stored in an interpreter frame for OSR.
- name: OsrReturnValue
result_type: BoxedValue
operands:
entry: WordSized
mir_op: true
- name: OsrArgumentsObject
result_type: WordSized
operands:
entry: WordSized
mir_op: true
- name: RegExp
result_type: WordSized
num_temps: 1
mir_op: true
- name: RegExpMatcher
result_type: BoxedValue
operands:
regexp: WordSized
string: WordSized
lastIndex: WordSized
call_instruction: true
mir_op: true
- name: RegExpSearcher
result_type: WordSized
operands:
regexp: WordSized
string: WordSized
lastIndex: WordSized
call_instruction: true
mir_op: true
- name: RegExpSearcherLastLimit
result_type: WordSized
operands:
num_temps: 1
- name: RegExpExecMatch
result_type: BoxedValue
operands:
regexp: WordSized
string: WordSized
call_instruction: true
num_temps: 0
mir_op: true
- name: RegExpExecTest
result_type: WordSized
operands:
regexp: WordSized
string: WordSized
call_instruction: true
num_temps: 0
mir_op: true
- name: RegExpHasCaptureGroups
result_type: WordSized
operands:
regexp: WordSized
input: WordSized
mir_op: true
- name: RegExpPrototypeOptimizable
result_type: WordSized
operands:
object: WordSized
num_temps: 1
mir_op: true
- name: RegExpInstanceOptimizable
result_type: WordSized
operands:
object: WordSized
proto: WordSized
num_temps: 1
mir_op: true
- name: GetFirstDollarIndex
result_type: WordSized
operands:
str: WordSized
num_temps: 3
- name: StringReplace
result_type: WordSized
operands:
string: WordSized
pattern: WordSized
replacement: WordSized
call_instruction: true
mir_op: true
- name: BinaryValueCache
result_type: BoxedValue
operands:
lhs: BoxedValue
rhs: BoxedValue
# Takes two temps: these are intended to be FloatReg0 and FloatReg1
# to allow the actual cache code to safely clobber those values without
# save and restore.
num_temps: 2
mir_op: BinaryCache
- name: BinaryBoolCache
result_type: WordSized
operands:
lhs: BoxedValue
rhs: BoxedValue
# Takes two temps: these are intendend to be FloatReg0 and FloatReg1
# To allow the actual cache code to safely clobber those values without
# save and restore.
num_temps: 2
mir_op: BinaryCache
- name: UnaryCache
result_type: BoxedValue
operands:
input: BoxedValue
mir_op_cast: true
- name: ModuleMetadata
result_type: WordSized
call_instruction: true
mir_op: true
- name: DynamicImport
result_type: WordSized
operands:
specifier: BoxedValue
options: BoxedValue
call_instruction: true
mir_op: true
- name: Lambda
result_type: WordSized
operands:
environmentChain: WordSized
num_temps: 1
mir_op: true
- name: FunctionWithProto
result_type: WordSized
operands:
envChain: WordSized
prototype: WordSized
call_instruction: true
mir_op: true
- name: SetFunName
result_type: WordSized
operands:
fun: WordSized
name: BoxedValue
call_instruction: true
mir_op: true
- name: KeepAliveObject
operands:
object: WordSized
- name: DebugEnterGCUnsafeRegion
num_temps: 1
- name: DebugLeaveGCUnsafeRegion
num_temps: 1
# Load the "slots" member out of a JSObject.
# Input: JSObject pointer
# Output: slots pointer
- name: Slots
result_type: WordSized
operands:
object: WordSized
# Load the "elements" member out of a JSObject.
# Input: JSObject pointer
# Output: elements pointer
- name: Elements
result_type: WordSized
operands:
object: WordSized
mir_op: true
# Load the initialized length from an elements header.
- name: InitializedLength
result_type: WordSized
operands:
elements: WordSized
# Store to the initialized length in an elements header. Note the input is an
# *index*, one less than the desired initialized length.
- name: SetInitializedLength
operands:
elements: WordSized
index: WordSized
# Load the length from an elements header.
- name: ArrayLength
result_type: WordSized
operands:
elements: WordSized
# Store to the length in an elements header. Note the input is an *index*,
# one less than the desired length.
- name: SetArrayLength
operands:
elements: WordSized
index: WordSized
# Load the "length" property of a function.
- name: FunctionLength
result_type: WordSized
operands:
function: WordSized
# Load the "name" property of a function.
- name: FunctionName
result_type: WordSized
operands:
function: WordSized
- name: GetNextEntryForIterator
result_type: WordSized
operands:
iter: WordSized
result: WordSized
num_temps: 3
mir_op: true
- name: ArrayBufferByteLength
result_type: WordSized
operands:
object: WordSized
- name: ArrayBufferViewLength
result_type: WordSized
operands:
object: WordSized
mir_op: true
# Read the byteOffset of an array buffer view.
- name: ArrayBufferViewByteOffset
result_type: WordSized
operands:
object: WordSized
# Load an array buffer view's elements vector.
- name: ArrayBufferViewElements
result_type: WordSized
operands:
object: WordSized
# Return the element size of a typed array.
- name: TypedArrayElementSize
result_type: WordSized
operands:
object: WordSized
# Read the length of a resizable typed array.
- name: ResizableTypedArrayLength
result_type: WordSized
operands:
object: WordSized
arguments:
synchronization: js::jit::Synchronization
num_temps: 1
# Read the possibly out-of-bounds byteOffset of a resizable typed array.
- name: ResizableTypedArrayByteOffsetMaybeOutOfBounds
result_type: WordSized
operands:
object: WordSized
num_temps: 1
# Read the byte length of a resizable data view.
- name: ResizableDataViewByteLength
result_type: WordSized
operands:
object: WordSized
arguments:
synchronization: js::jit::Synchronization
num_temps: 1
# Read the byte length of a growable shared array buffer.
- name: GrowableSharedArrayBufferByteLength
result_type: WordSized
operands:
object: WordSized
# Guard a resizable array buffer view is in-bounds.
- name: GuardResizableArrayBufferViewInBounds
operands:
object: WordSized
num_temps: 1
# Guard a resizable array buffer view is in-bounds.
- name: GuardResizableArrayBufferViewInBoundsOrDetached
operands:
object: WordSized
num_temps: 1
- name: GuardHasAttachedArrayBuffer
operands:
object: WordSized
num_temps: 1
# Double to IntPtr, eligible for accessing into a TypedArray or DataView. If
# the index isn't exactly representable as an IntPtr, depending on the
# supportOOB flag on the MIR instruction, either bail out or produce an IntPtr
# which is equivalent to an OOB access.
- name: GuardNumberToIntPtrIndex
result_type: WordSized
operands:
input: WordSized
mir_op: true
# Bailout if index >= length.
- name: BoundsCheck
operands:
index: WordSized
length: WordSized
mir_op: true
# Bailout if index + minimum < 0 or index + maximum >= length.
- name: BoundsCheckRange
operands:
index: WordSized
length: WordSized
num_temps: 1
mir_op: BoundsCheck
# Bailout if index < minimum.
- name: BoundsCheckLower
operands:
index: WordSized
mir_op: true
- name: SpectreMaskIndex
result_type: WordSized
operands:
index: WordSized
length: WordSized
mir_op: true
# Load a value from a dense array's elements vector. Bail out if it's the hole
# value.
- name: LoadElementV
result_type: BoxedValue
operands:
elements: WordSized
index: WordSized
mir_op: LoadElement
- name: InArray
result_type: WordSized
operands:
elements: WordSized
index: WordSized
initLength: WordSized
mir_op: true
- name: GuardElementNotHole
operands:
elements: WordSized
index: WordSized
# Load a value from an array's elements vector, loading |undefined| if we hit a
# hole. Bail out if we get a negative index.
- name: LoadElementHole
result_type: BoxedValue
operands:
elements: WordSized
index: WordSized
initLength: WordSized
mir_op: true
# Store a boxed value to a dense array's element vector.
- name: StoreElementV
operands:
elements: WordSized
index: WordSized
value: BoxedValue
mir_op: StoreElement
extra_name: true
# Store a typed value to a dense array's elements vector. Compared to
# LStoreElementV, this instruction can store doubles and constants directly,
# and does not store the type tag if the array is monomorphic and known to
# be packed.
- name: StoreElementT
operands:
elements: WordSized
index: WordSized
value: WordSized
mir_op: StoreElement
extra_name: true
- name: StoreHoleValueElement
operands:
elements: WordSized
index: WordSized
# Like LStoreElementV, but supports indexes >= initialized length.
- name: StoreElementHoleV
operands:
object: WordSized
elements: WordSized
index: WordSized
value: BoxedValue
num_temps: 1
mir_op: StoreElementHole
# Like LStoreElementT, but supports indexes >= initialized length.
- name: StoreElementHoleT
operands:
object: WordSized
elements: WordSized
index: WordSized
value: WordSized
num_temps: 1
mir_op: StoreElementHole
- name: ArrayPopShift
result_type: BoxedValue
operands:
object: WordSized
num_temps: 2
mir_op: true
extra_name: true
- name: ArrayPush
result_type: WordSized
operands:
object: WordSized
value: BoxedValue
num_temps: 2
mir_op: true
- name: ArraySlice
result_type: WordSized
operands:
object: WordSized
begin: WordSized
end: WordSized
num_temps: 2
call_instruction: true
mir_op: true
- name: ArgumentsSlice
result_type: WordSized
operands:
object: WordSized
begin: WordSized
end: WordSized
num_temps: 2
call_instruction: true
mir_op: true
- name: FrameArgumentsSlice
result_type: WordSized
operands:
begin: WordSized
count: WordSized
num_temps: 1
mir_op: true
- name: InlineArgumentsSlice
gen_boilerplate: false
- name: NormalizeSliceTerm
result_type: WordSized
operands:
value: WordSized
length: WordSized
mir_op: true
- name: ArrayJoin
result_type: WordSized
operands:
array: WordSized
separator: WordSized
num_temps: 1
call_instruction: true
mir_op: true
- name: ObjectKeys
result_type: WordSized
operands:
object: WordSized
num_temps: 0
call_instruction: true
- name: ObjectKeysLength
result_type: WordSized
operands:
object: WordSized
num_temps: 0
call_instruction: true
- name: LoadUnboxedScalar
result_type: WordSized
operands:
elements: WordSized
index: WordSized
num_temps: 2
mir_op: true
- name: LoadUnboxedInt64
result_type: Int64
operands:
elements: WordSized
index: WordSized
mir_op: LoadUnboxedScalar
- name: LoadDataViewElement
result_type: WordSized
operands:
elements: WordSized
index: WordSized
littleEndian: WordSized
num_temps: 2
num_temps64: 1
mir_op: true
- name: LoadDataViewElement64
result_type: Int64
operands:
elements: WordSized
index: WordSized
littleEndian: WordSized
mir_op: LoadDataViewElement
- name: LoadTypedArrayElementHole
result_type: BoxedValue
operands:
elements: WordSized
index: WordSized
length: WordSized
num_temps: 1
mir_op: true
- name: LoadTypedArrayElementHoleBigInt
result_type: BoxedValue
operands:
elements: WordSized
index: WordSized
length: WordSized
num_temps: 1
num_temps64: 1
mir_op: LoadTypedArrayElementHole
- name: StoreUnboxedScalar
operands:
elements: WordSized
index: WordSized
value: WordSized
num_temps: 1
mir_op: true
- name: StoreUnboxedInt64
operands:
elements: WordSized
index: WordSized
value: Int64
mir_op: StoreUnboxedScalar
- name: StoreDataViewElement
operands:
elements: WordSized
index: WordSized
value: WordSized
littleEndian: WordSized
num_temps: 1
num_temps64: 1
mir_op: true
- name: StoreDataViewElement64
operands:
elements: WordSized
index: WordSized
value: Int64
littleEndian: WordSized
num_temps64: 1
mir_op: StoreDataViewElement
- name: StoreTypedArrayElementHole
operands:
elements: WordSized
length: WordSized
index: WordSized
value: WordSized
num_temps: 1
mir_op: true
- name: StoreTypedArrayElementHoleInt64
operands:
elements: WordSized
length: WordSized
index: WordSized
value: Int64
num_temps: 1
mir_op: StoreTypedArrayElementHole
- name: AtomicIsLockFree
result_type: WordSized
operands:
value: WordSized
- name: CompareExchangeTypedArrayElement
result_type: WordSized
operands:
elements: WordSized
index: WordSized
oldval: WordSized
newval: WordSized
# Needs additional temps on LL/SC platforms to extract/insert bits of word.
#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LO
ONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 4
#else
num_temps: 1
#endif
mir_op: true
- name: AtomicExchangeTypedArrayElement
result_type: WordSized
operands:
elements: WordSized
index: WordSized
value: WordSized
# Needs additional temps on LL/SC platforms to extract/insert bits of word.
#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 4
#else
num_temps: 1
#endif
mir_op: true
- name: AtomicTypedArrayElementBinop
result_type: WordSized
operands:
elements: WordSized
index: WordSized
value: WordSized
# Needs additional temps on LL/SC platforms to extract/insert bits of word.
#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 4
#else
num_temps: 2
#endif
mir_op: true
# Atomic binary operation where the result is discarded.
- name: AtomicTypedArrayElementBinopForEffect
operands:
elements: WordSized
index: WordSized
value: WordSized
# Additional temp that may be used on LL/SC platforms for the flag result of the store.
# Needs additional temps on LL/SC platforms to extract/insert bits of word.
#if defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_ARM64)
num_temps: 1
#elif defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 3
#endif
mir_op: AtomicTypedArrayElementBinop
- name: AtomicLoad64
result_type: Int64
operands:
elements: WordSized
index: WordSized
#ifdef JS_CODEGEN_X86
num_temps64: 1
#endif
mir_op: LoadUnboxedScalar
- name: AtomicStore64
operands:
elements: WordSized
index: WordSized
value: Int64
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_ARM)
num_temps64: 1
#endif
mir_op: StoreUnboxedScalar
- name: CompareExchangeTypedArrayElement64
result_type: Int64
operands:
elements: WordSized
index: WordSized
oldval: Int64
newval: Int64
mir_op: CompareExchangeTypedArrayElement
- name: AtomicExchangeTypedArrayElement64
result_type: Int64
operands:
elements: WordSized
index: WordSized
value: Int64
mir_op: AtomicExchangeTypedArrayElement
- name: AtomicTypedArrayElementBinop64
result_type: Int64
operands:
elements: WordSized
index: WordSized
value: Int64
#ifndef JS_CODEGEN_X86
num_temps64: 1
#endif
mir_op: AtomicTypedArrayElementBinop
# Atomic binary operation where the result is discarded.
- name: AtomicTypedArrayElementBinopForEffect64
operands:
elements: WordSized
index: WordSized
value: Int64
#ifndef JS_CODEGEN_X64
num_temps64: 1
#endif
mir_op: AtomicTypedArrayElementBinop
- name: EffectiveAddress
result_type: WordSized
operands:
base: WordSized
index: WordSized
mir_op: true
- name: ClampIToUint8
result_type: WordSized
operands:
input: WordSized
- name: ClampDToUint8
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: ClampVToUint8
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
mir_op: ClampToUint8
- name: LoadScriptedProxyHandler
result_type: WordSized
operands:
object: WordSized
mir_op: true
#ifdef JS_PUNBOX64
- name: CheckScriptedProxyGetResult
operands:
target: BoxedValue
id: BoxedValue
value: BoxedValue
num_temps: 2
mir_op: true
#endif
- name: IdToStringOrSymbol
result_type: BoxedValue
operands:
id: BoxedValue
num_temps: 1
mir_op: true
# Load a boxed value from an object's fixed slot.
- name: LoadFixedSlotV
result_type: BoxedValue
operands:
object: WordSized
mir_op: LoadFixedSlot
# Load a boxed value from an object's fixed slot.
# If it is a non-atom string, atomize it and update the slot.
- name: LoadFixedSlotAndAtomize
result_type: BoxedValue
operands:
object: WordSized
num_temps: 1
mir_op: LoadFixedSlot
# Load a typed value from an object's fixed slot.
- name: LoadFixedSlotT
result_type: WordSized
operands:
object: WordSized
mir_op: LoadFixedSlot
- name: LoadFixedSlotAndUnbox
result_type: WordSized
operands:
object: WordSized
mir_op: true
- name: LoadDynamicSlotAndUnbox
result_type: WordSized
operands:
slots: WordSized
mir_op: true
- name: LoadElementAndUnbox
result_type: WordSized
operands:
elements: WordSized
index: WordSized
mir_op: true
- name: LoadFixedSlotUnboxAndAtomize
result_type: WordSized
operands:
object: WordSized
mir_op: LoadFixedSlotAndUnbox
- name: LoadDynamicSlotUnboxAndAtomize
result_type: WordSized
operands:
slots: WordSized
mir_op: LoadDynamicSlotAndUnbox
- name: AddAndStoreSlot
operands:
object: WordSized
value: BoxedValue
num_temps: 1
mir_op: true
- name: AllocateAndStoreSlot
operands:
object: WordSized
value: BoxedValue
num_temps: 2
call_instruction: true
mir_op: true
- name: AddSlotAndCallAddPropHook
operands:
object: WordSized
value: BoxedValue
call_instruction: true
mir_op: true
# Store a boxed value to an object's fixed slot.
- name: StoreFixedSlotV
operands:
obj: WordSized
value: BoxedValue
mir_op: StoreFixedSlot
# Store a typed value to an object's fixed slot.
- name: StoreFixedSlotT
operands:
obj: WordSized
value: WordSized
mir_op: StoreFixedSlot
# Note, Name ICs always return a Value. There are no V/T variants.
- name: GetNameCache
result_type: BoxedValue
operands:
envObj: WordSized
num_temps: 1
mir_op: true
- name: CallGetIntrinsicValue
result_type: BoxedValue
call_instruction: true
mir_op: true
- name: GetPropSuperCache
result_type: BoxedValue
operands:
obj: WordSized
receiver: BoxedValue
id: BoxedValue
mir_op: true
# Patchable jump to stubs generated for a GetProperty cache, which loads a
# boxed value.
- name: GetPropertyCache
result_type: BoxedValue
operands:
value: BoxedValue
id: BoxedValue
mir_op: true
- name: BindNameCache
result_type: WordSized
operands:
environmentChain: WordSized
num_temps: 1
mir_op: true
- name: CallBindVar
result_type: WordSized
operands:
environmentChain: WordSized
mir_op: true
# Load a value from an object's dslots or a slots vector.
- name: LoadDynamicSlotV
result_type: BoxedValue
operands:
input: WordSized
mir_op: LoadDynamicSlot
# Load a value from an object's dslots or a slots vector.
# If it is a non-atom string, atomize it and update the slot.
- name: LoadDynamicSlotAndAtomize
result_type: BoxedValue
operands:
input: WordSized
num_temps: 1
mir_op: LoadDynamicSlot
# Store a value to an object's dslots or a slots vector.
- name: StoreDynamicSlotV
operands:
slots: WordSized
value: BoxedValue
mir_op: StoreDynamicSlot
# Store a typed value to an object's dslots or a slots vector. This has a
# few advantages over LStoreDynamicSlotV:
# 1) We can bypass storing the type tag if the slot has the same type as
# the value.
# 2) Better Register allocation: we can store constants and FP regs directly
# without requiring a second Register for the value.
- name: StoreDynamicSlotT
operands:
slots: WordSized
value: WordSized
mir_op: StoreDynamicSlot
# Read length field of a JSString*.
- name: StringLength
result_type: WordSized
operands:
string: WordSized
# Take the floor of a double precision number and converts it to an int32.
# Implements Math.floor().
- name: Floor
result_type: WordSized
operands:
input: WordSized
# Take the floor of a single precision number and converts it to an int32.
# Implements Math.floor().
- name: FloorF
result_type: WordSized
operands:
input: WordSized
# Take the ceiling of a double precision number and converts it to an int32.
# Implements Math.ceil().
- name: Ceil
result_type: WordSized
operands:
input: WordSized
# Take the ceiling of a single precision number and converts it to an int32.
# Implements Math.ceil().
- name: CeilF
result_type: WordSized
operands:
input: WordSized
# Round a double precision number and converts it to an int32.
# Implements Math.round().
- name: Round
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: true
# Round a single precision number and converts it to an int32.
# Implements Math.round().
- name: RoundF
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: Round
# Truncates a double precision number and converts it to an int32.
# Implements Math.trunc().
- name: Trunc
result_type: WordSized
operands:
input: WordSized
# Truncates a single precision number and converts it to an int32.
# Implements Math.trunc().
- name: TruncF
result_type: WordSized
operands:
input: WordSized
# Rounds a double precision number accordingly to mir()->roundingMode(),
# and keeps a double output.
- name: NearbyInt
result_type: WordSized
operands:
input: WordSized
mir_op: true
# Rounds a single precision number accordingly to mir()->roundingMode(),
# and keeps a single output.
- name: NearbyIntF
result_type: WordSized
operands:
input: WordSized
mir_op: NearbyInt
# Load a function's call environment.
- name: FunctionEnvironment
result_type: WordSized
operands:
function: WordSized
- name: HomeObject
result_type: WordSized
operands:
function: WordSized
- name: HomeObjectSuperBase
result_type: BoxedValue
operands:
homeObject: WordSized
- name: NewLexicalEnvironmentObject
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewClassBodyEnvironmentObject
result_type: WordSized
num_temps: 1
mir_op: true
- name: NewVarEnvironmentObject
result_type: WordSized
num_temps: 1
mir_op: true
- name: MegamorphicSetElement
operands:
object: WordSized
index: BoxedValue
value: BoxedValue
# On x86 we do not have enough registers to use 3 temps for this *and* take
# five words worth of operands. Since it's 32-bit, though, we get two
# registers from pushing `value`, which doesn't get used until the end
# anyway. This is somewhat klunky, but oh well.
#ifdef JS_CODEGEN_X86
num_temps: 1
#else
num_temps: 3
#endif
call_instruction: true
mir_op: true
- name: CallDeleteProperty
result_type: WordSized
operands:
value: BoxedValue
call_instruction: true
mir_op: DeleteProperty
- name: CallDeleteElement
result_type: WordSized
operands:
value: BoxedValue
index: BoxedValue
call_instruction: true
mir_op: DeleteElement
- name: ObjectToIterator
result_type: WordSized
operands:
object: WordSized
num_temps: 3
mir_op: true
- name: ValueToIterator
result_type: WordSized
operands:
value: BoxedValue
call_instruction: true
mir_op: ValueToIterator
- name: IteratorHasIndicesAndBranch
successors: [ifTrue, ifFalse]
operands:
object: WordSized
iterator: WordSized
num_temps: 2
- name: LoadSlotByIteratorIndex
result_type: BoxedValue
operands:
object: WordSized
iterator: WordSized
num_temps: 2
- name: StoreSlotByIteratorIndex
operands:
object: WordSized
iterator: WordSized
value: BoxedValue
num_temps: 2
mir_op: true
# Patchable jump to stubs generated for a SetProperty cache.
- name: SetPropertyCache
operands:
object: WordSized
id: BoxedValue
value: BoxedValue
# Takes an additional temp: this is intendend to be FloatReg0 to allow the
# actual cache code to safely clobber that value without save and restore.
num_temps: 2
mir_op: true
- name: GetIteratorCache
result_type: WordSized
operands:
value: BoxedValue
num_temps: 2
mir_op: true
- name: OptimizeSpreadCallCache
result_type: BoxedValue
operands:
value: BoxedValue
num_temps: 1
mir_op: true
- name: IteratorMore
result_type: BoxedValue
operands:
iterator: WordSized
num_temps: 1
mir_op: true
- name: IsNoIterAndBranch
successors: [ifTrue, ifFalse]
operands:
input: BoxedValue
- name: IteratorEnd
operands:
object: WordSized
num_temps: 3
mir_op: true
- name: CloseIterCache
operands:
iter: WordSized
num_temps: 1
mir_op: true
- name: OptimizeGetIteratorCache
result_type: WordSized
operands:
value: BoxedValue
num_temps: 1
mir_op: true
# Read the number of actual arguments.
- name: ArgumentsLength
result_type: WordSized
# Load a value from the actual arguments.
- name: GetFrameArgument
result_type: BoxedValue
operands:
index: WordSized
# Load a value from the actual arguments.
# Returns undefined if |index| is larger-or-equals to |length|. Bails out if
# |index| is negative.
- name: GetFrameArgumentHole
result_type: BoxedValue
operands:
index: WordSized
length: WordSized
num_temps: 1
# Create the rest parameter.
- name: Rest
result_type: WordSized
operands:
numActuals: WordSized
num_temps: 4
call_instruction: true
mir_op: true
- name: Int32ToIntPtr
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: NonNegativeIntPtrToInt32
result_type: WordSized
operands:
input: WordSized
- name: IntPtrToDouble
result_type: WordSized
operands:
input: WordSized
- name: AdjustDataViewLength
result_type: WordSized
operands:
input: WordSized
mir_op: true
# Convert a Boolean to an Int64, following ToBigInt.
- name: BooleanToInt64
result_type: Int64
operands:
input: WordSized
mir_op: ToInt64
# Convert a String to an Int64, following ToBigInt.
- name: StringToInt64
result_type: Int64
operands:
input: WordSized
mir_op: ToInt64
# Simulate ToBigInt on a Value and produce a matching Int64.
- name: ValueToInt64
result_type: Int64
operands:
input: BoxedValue
num_temps: 1
mir_op: ToInt64
# Truncate a BigInt to an unboxed int64.
- name: TruncateBigIntToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
# Create a new BigInt* from an unboxed int64.
- name: Int64ToBigInt
result_type: WordSized
operands:
input: Int64
num_temps64: 1
# Create a new BigInt* from an unboxed uint64.
- name: Uint64ToBigInt
result_type: WordSized
operands:
input: Int64
num_temps: 1
mir_op: Int64ToBigInt
# Return intptr from an unboxed int64. Bails if the input exceeds intptr limits.
- name: Int64ToIntPtr
result_type: WordSized
operands:
input: Int64
mir_op: true
# Return an int64 from an intptr.
- name: IntPtrToInt64
result_type: Int64
operands:
input: WordSized
# Generational write barrier used when writing an object to another object.
- name: PostWriteBarrierO
operands:
object: WordSized
value: WordSized
num_temps: 1
mir_op: PostWriteBarrier
# Generational write barrier used when writing a string to an object.
- name: PostWriteBarrierS
operands:
object: WordSized
value: WordSized
num_temps: 1
mir_op: PostWriteBarrier
# Generational write barrier used when writing a BigInt to an object.
- name: PostWriteBarrierBI
operands:
object: WordSized
value: WordSized
num_temps: 1
mir_op: PostWriteBarrier
# Generational write barrier used when writing a value to another object.
- name: PostWriteBarrierV
operands:
object: WordSized
value: BoxedValue
num_temps: 1
mir_op: PostWriteBarrier
# Generational write barrier used when writing an object to another object's
# elements.
- name: PostWriteElementBarrierO
operands:
object: WordSized
value: WordSized
index: WordSized
num_temps: 1
mir_op: PostWriteElementBarrier
# Generational write barrier used when writing a string to an object's
# elements.
- name: PostWriteElementBarrierS
operands:
object: WordSized
value: WordSized
index: WordSized
num_temps: 1
mir_op: PostWriteElementBarrier
# Generational write barrier used when writing a BigInt to an object's
# elements.
- name: PostWriteElementBarrierBI
operands:
object: WordSized
value: WordSized
index: WordSized
num_temps: 1
mir_op: PostWriteElementBarrier
# Generational write barrier used when writing a value to another object's
# elements.
- name: PostWriteElementBarrierV
operands:
object: WordSized
index: WordSized
value: BoxedValue
num_temps: 1
mir_op: PostWriteElementBarrier
# Assert in debug mode that a post write barrier can be elided.
- name: AssertCanElidePostWriteBarrier
operands:
object: WordSized
value: BoxedValue
num_temps: 1
# Guard against an object's identity.
- name: GuardObjectIdentity
operands:
input: WordSized
expected: WordSized
mir_op: true
# Guard against an function's identity.
- name: GuardSpecificFunction
operands:
input: WordSized
expected: WordSized
- name: GuardSpecificAtom
operands:
str: WordSized
num_temps: 1
mir_op: true
- name: GuardSpecificSymbol
operands:
symbol: WordSized
mir_op: true
- name: GuardSpecificInt32
operands:
num: WordSized
mir_op: true
- name: GuardStringToIndex
result_type: WordSized
operands:
string: WordSized
- name: GuardStringToInt32
result_type: WordSized
operands:
string: WordSized
num_temps: 1
- name: GuardStringToDouble
result_type: WordSized
operands:
string: WordSized
num_temps: 2
- name: GuardShape
result_type: WordSized
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: GuardMultipleShapes
result_type: WordSized
operands:
object: WordSized
shapeList: WordSized
num_temps: 4
mir_op: true
- name: GuardProto
operands:
object: WordSized
expected: WordSized
num_temps: 1
- name: GuardNullProto
operands:
object: WordSized
num_temps: 1
- name: GuardIsNativeObject
operands:
object: WordSized
num_temps: 1
- name: GuardGlobalGeneration
mir_op: true
num_temps: 1
- name: GuardFuse
mir_op: true
num_temps: 1
- name: GuardIsProxy
operands:
object: WordSized
num_temps: 1
- name: GuardIsNotProxy
operands:
object: WordSized
num_temps: 1
- name: GuardIsNotDOMProxy
operands:
proxy: WordSized
num_temps: 1
- name: ProxyGet
result_type: BoxedValue
operands:
proxy: WordSized
num_temps: 1
call_instruction: true
mir_op: true
- name: ProxyGetByValue
result_type: BoxedValue
operands:
proxy: WordSized
id: BoxedValue
call_instruction: true
- name: ProxyHasProp
result_type: BoxedValue
operands:
proxy: WordSized
id: BoxedValue
call_instruction: true
mir_op: true
- name: ProxySet
operands:
proxy: WordSized
rhs: BoxedValue
num_temps: 1
call_instruction: true
mir_op: true
- name: ProxySetByValue
operands:
proxy: WordSized
id: BoxedValue
rhs: BoxedValue
call_instruction: true
mir_op: true
- name: CallSetArrayLength
operands:
obj: WordSized
rhs: BoxedValue
call_instruction: true
mir_op: true
- name: MegamorphicLoadSlot
result_type: BoxedValue
operands:
object: WordSized
num_temps: 4
call_instruction: true
mir_op: true
- name: MegamorphicLoadSlotByValue
result_type: BoxedValue
operands:
object: WordSized
id: BoxedValue
num_temps: 3
call_instruction: true
mir_op: true
- name: MegamorphicLoadSlotPermissive
result_type: BoxedValue
operands:
object: WordSized
num_temps: 3
call_instruction: true
mir_op: true
- name: MegamorphicLoadSlotByValuePermissive
result_type: BoxedValue
operands:
object: WordSized
id: BoxedValue
num_temps: 3
call_instruction: true
mir_op: true
- name: MegamorphicStoreSlot
operands:
object: WordSized
rhs: BoxedValue
#ifdef JS_CODEGEN_X86
num_temps: 1
#else
num_temps: 3
#endif
call_instruction: true
mir_op: true
- name: MegamorphicHasProp
result_type: WordSized
operands:
object: WordSized
id: BoxedValue
num_temps: 3
call_instruction: true
mir_op: true
- name: SmallObjectVariableKeyHasProp
result_type: WordSized
operands:
id: WordSized
num_temps: 0
mir_op: true
- name: GuardIsNotArrayBufferMaybeShared
operands:
object: WordSized
num_temps: 1
- name: GuardIsTypedArray
operands:
object: WordSized
num_temps: 1
- name: GuardIsFixedLengthTypedArray
operands:
object: WordSized
num_temps: 1
- name: GuardIsResizableTypedArray
operands:
object: WordSized
num_temps: 1
- name: GuardHasProxyHandler
operands:
object: WordSized
mir_op: true
- name: GuardNoDenseElements
operands:
input: WordSized
num_temps: 1
- name: InCache
result_type: WordSized
operands:
lhs: BoxedValue
rhs: WordSized
num_temps: 1
mir_op: true
- name: HasOwnCache
result_type: WordSized
operands:
value: BoxedValue
id: BoxedValue
mir_op: true
- name: CheckPrivateFieldCache
result_type: WordSized
operands:
value: BoxedValue
id: BoxedValue
mir_op: true
- name: NewPrivateName
result_type: WordSized
call_instruction: true
mir_op: true
- name: InstanceOfO
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: InstanceOf
- name: InstanceOfV
result_type: WordSized
operands:
lhs: BoxedValue
rhs: WordSized
mir_op: InstanceOf
- name: InstanceOfCache
result_type: WordSized
operands:
lhs: BoxedValue
rhs: WordSized
- name: IsCallableO
result_type: WordSized
operands:
object: WordSized
mir_op: IsCallable
- name: IsCallableV
result_type: WordSized
operands:
object: BoxedValue
num_temps: 1
mir_op: IsCallable
- name: IsConstructor
result_type: WordSized
operands:
object: WordSized
mir_op: true
- name: IsCrossRealmArrayConstructor
result_type: WordSized
operands:
object: WordSized
- name: IsArrayO
result_type: WordSized
operands:
object: WordSized
mir_op: IsArray
- name: IsArrayV
result_type: WordSized
operands:
value: BoxedValue
num_temps: 1
mir_op: IsArray
- name: IsTypedArray
result_type: WordSized
operands:
object: WordSized
mir_op: true
- name: IsObject
result_type: WordSized
operands:
object: BoxedValue
mir_op: true
- name: IsObjectAndBranch
successors: [ifTrue, ifFalse]
operands:
input: BoxedValue
- name: IsNullOrUndefined
result_type: WordSized
operands:
input: BoxedValue
mir_op: true
- name: IsNullOrUndefinedAndBranch
successors: [ifTrue, ifFalse]
operands:
input: BoxedValue
- name: HasClass
result_type: WordSized
operands:
lhs: WordSized
mir_op: true
- name: GuardToClass
result_type: WordSized
operands:
lhs: WordSized
num_temps: 1
mir_op: true
- name: GuardToEitherClass
result_type: WordSized
operands:
lhs: WordSized
num_temps: 1
mir_op: true
- name: GuardToFunction
result_type: WordSized
operands:
lhs: WordSized
num_temps: 1
mir_op: true
- name: ObjectClassToString
result_type: WordSized
operands:
lhs: WordSized
num_temps: 1
call_instruction: true
mir_op: true
- name: WasmSelect
result_type: WordSized
operands:
trueExpr: WordSized
falseExpr: WordSized
condExpr: WordSized
mir_op: true
- name: WasmSelectI64
result_type: Int64
operands:
trueExpr: Int64
falseExpr: Int64
condExpr: WordSized
mir_op: WasmSelect
- name: WasmCompareAndSelect
result_type: WordSized
operands:
leftExpr: WordSized
rightExpr: WordSized
ifTrueExpr: WordSized
ifFalseExpr: WordSized
arguments:
compareType: MCompare::CompareType
jsop: JSOp
mir_op: WasmSelect
- name: WasmAddOffset
result_type: WordSized
operands:
base: WordSized
mir_op: true
- name: WasmAddOffset64
result_type: Int64
operands:
base: Int64
mir_op: WasmAddOffset
- name: WasmBoundsCheck
result_type: WordSized
operands:
ptr: WordSized
boundsCheckLimit: WordSized
mir_op: true
- name: WasmBoundsCheck64
result_type: Int64
operands:
ptr: Int64
boundsCheckLimit: Int64
mir_op: WasmBoundsCheck
- name: WasmBoundsCheckRange32
result_type: WordSized
operands:
index: WordSized
length: WordSized
limit: WordSized
mir_op: true
num_temps: 1
- name: WasmExtendU32Index
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: WasmWrapU32Index
result_type: WordSized
operands:
input: WordSized
mir_op: true
- name: WasmClampTable64Address
result_type: WordSized
operands:
address: Int64
mir_op: true
- name: WasmAlignmentCheck
operands:
ptr: WordSized
mir_op: true
- name: WasmAlignmentCheck64
operands:
ptr: Int64
mir_op: WasmAlignmentCheck
- name: WasmLoadInstance
result_type: WordSized
operands:
instance: WordSized
mir_op: true
- name: WasmLoadInstance64
result_type: Int64
operands:
instance: WordSized
mir_op: WasmLoadInstance
- name: WasmHeapReg
result_type: WordSized
mir_op: true
- name: WasmLoad
result_type: WordSized
operands:
ptr: WordSized
memoryBase: WordSized
#if defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 1
#endif
mir_op: true
- name: WasmLoadI64
result_type: Int64
operands:
ptr: WordSized
memoryBase: WordSized
#ifdef JS_CODEGEN_ARM
num_temps: 2
#elif defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 1
#endif
mir_op: WasmLoad
- name: WasmStore
operands:
ptr: WordSized
value: WordSized
memoryBase: WordSized
#if defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 1
#endif
mir_op: true
- name: WasmStoreI64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
#if defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 1
#endif
mir_op: WasmStore
- name: AsmJSLoadHeap
result_type: WordSized
operands:
ptr: WordSized
boundsCheckLimit: WordSized
memoryBase: WordSized
mir_op: true
- name: AsmJSStoreHeap
result_type: WordSized
operands:
ptr: WordSized
value: WordSized
boundsCheckLimit: WordSized
memoryBase: WordSized
mir_op: true
- name: WasmCompareExchangeHeap
result_type: WordSized
operands:
ptr: WordSized
oldValue: WordSized
newValue: WordSized
memoryBase: WordSized
#ifdef JS_CODEGEN_X86
num_temps: 1
#elif defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
# Temp that may be used on LL/SC platforms for extract/insert bits of word.
num_temps: 3
#endif
mir_op: true
- name: WasmFence
- name: WasmAtomicExchangeHeap
result_type: WordSized
operands:
ptr: WordSized
value: WordSized
memoryBase: WordSized
#ifdef JS_CODEGEN_X86
num_temps: 1
#elif defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
# Temp that may be used on LL/SC platforms for extract/insert bits of word.
num_temps: 3
#endif
mir_op: true
- name: WasmAtomicBinopHeap
result_type: WordSized
operands:
ptr: WordSized
value: WordSized
memoryBase: WordSized
#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
# Temp that may be used on LL/SC platforms for extract/insert bits of word.
num_temps: 3
#elifdef JS_CODEGEN_X86
# Additional temp to hold a computed address.
num_temps: 2
#else
num_temps: 1
#endif
mir_op: true
# Atomic binary operation where the result is discarded.
- name: WasmAtomicBinopHeapForEffect
operands:
ptr: WordSized
value: WordSized
memoryBase: WordSized
#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
# Temp that may be used on LL/SC platforms for extract/insert bits of word.
num_temps: 3
#elif defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_ARM64)
num_temps: 1
#endif
mir_op: WasmAtomicBinopHeap
- name: WasmLoadSlot
result_type: WordSized
operands:
containerRef: WordSized
arguments:
offset: size_t
type: MIRType
wideningOp: MWideningOp
maybeTrap: wasm::MaybeTrapSiteDesc
- name: WasmLoadElement
result_type: WordSized
operands:
base: WordSized
index: WordSized
arguments:
type: MIRType
wideningOp: MWideningOp
scale: Scale
maybeTrap: wasm::MaybeTrapSiteDesc
num_temps: 1
- name: WasmLoadSlotI64
result_type: Int64
operands:
containerRef: WordSized
arguments:
offset: size_t
maybeTrap: wasm::MaybeTrapSiteDesc
- name: WasmLoadElementI64
result_type: Int64
operands:
base: WordSized
index: WordSized
arguments:
maybeTrap: wasm::MaybeTrapSiteDesc
- name: WasmStoreSlot
operands:
value: WordSized
containerRef: WordSized
arguments:
offset: size_t
type: MIRType
narrowingOp: MNarrowingOp
maybeTrap: wasm::MaybeTrapSiteDesc
- name: WasmStoreSlotI64
operands:
value: Int64
containerRef: WordSized
arguments:
offset: size_t
maybeTrap: wasm::MaybeTrapSiteDesc
- name: WasmStoreElement
operands:
base: WordSized
index: WordSized
value: WordSized
arguments:
type: MIRType
narrowingOp: MNarrowingOp
scale: Scale
maybeTrap: wasm::MaybeTrapSiteDesc
num_temps: 1
- name: WasmStoreElementI64
operands:
base: WordSized
index: WordSized
value: Int64
arguments:
maybeTrap: wasm::MaybeTrapSiteDesc
- name: WasmStoreElementRef
operands:
instance: WordSized
base: WordSized
index: WordSized
value: WordSized
arguments:
maybeTrap: wasm::MaybeTrapSiteDesc
preBarrierKind: WasmPreBarrierKind
num_temps: 2
- name: WasmLoadTableElement
result_type: WordSized
operands:
elements: WordSized
index: WordSized
- name: WasmDerivedPointer
result_type: WordSized
operands:
base: WordSized
mir_op: true
- name: WasmDerivedIndexPointer
result_type: WordSized
operands:
base: WordSized
index: WordSized
mir_op: true
- name: WasmStoreRef
operands:
instance: WordSized
valueBase: WordSized
value: WordSized
arguments:
offset: uint32_t
maybeTrap: wasm::MaybeTrapSiteDesc
preBarrierKind: WasmPreBarrierKind
num_temps: 1
mir_op: true
# Generational write barrier used when writing an object to another object.
- name: WasmPostWriteBarrierImmediate
operands:
instance: WordSized
object: WordSized
valueBase: WordSized
value: WordSized
arguments:
valueOffset: uint32_t
num_temps: 1
mir_op: true
# Ditto, but with a scaled index instead of a constant offset.
- name: WasmPostWriteBarrierIndex
operands:
instance: WordSized
object: WordSized
valueBase: WordSized
index: WordSized
value: WordSized
arguments:
elemSize: uint32_t
num_temps: 1
mir_op: true
- name: WasmParameter
result_type: WordSized
- name: WasmParameterI64
result_type: Int64
- name: WasmReturn
operands:
rval: WordSized
instance: WordSized
- name: WasmReturnI64
operands:
rval: Int64
instance: WordSized
- name: WasmReturnVoid
operands:
rval: WordSized
- name: WasmStackArg
operands:
arg: WordSized
mir_op: true
- name: WasmStackArgI64
operands:
arg: Int64
mir_op: WasmStackArg
- name: WasmNullConstant
result_type: WordSized
- name: WasmCallIndirectAdjunctSafepoint
gen_boilerplate: false
- name: WasmCall
gen_boilerplate: false
- name: WasmCallLandingPrePad
mir_op: true
- name: WasmRegisterResult
gen_boilerplate: false
- name: WasmRegisterPairResult
gen_boilerplate: false
- name: WasmStackResultArea
result_type: WordSized
num_temps: 1
mir_op: true
- name: WasmStackResult
gen_boilerplate: false
- name: WasmStackResult64
gen_boilerplate: false
- name: AssertRangeI
operands:
input: WordSized
mir_op: AssertRange
- name: AssertRangeD
operands:
input: WordSized
num_temps: 1
mir_op: AssertRange
- name: AssertRangeF
operands:
input: WordSized
num_temps: 2
mir_op: AssertRange
- name: AssertRangeV
operands:
input: BoxedValue
num_temps: 3
mir_op: AssertRange
- name: AssertClass
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: AssertShape
operands:
input: WordSized
mir_op: true
- name: GuardValue
operands:
input: BoxedValue
mir_op: true
- name: GuardNullOrUndefined
operands:
input: BoxedValue
mir_op: true
- name: GuardIsNotObject
operands:
input: BoxedValue
mir_op: true
- name: GuardFunctionFlags
operands:
function: WordSized
mir_op: true
- name: GuardFunctionIsNonBuiltinCtor
operands:
function: WordSized
num_temps: 1
- name: GuardFunctionKind
operands:
function: WordSized
num_temps: 1
mir_op: true
- name: GuardFunctionScript
operands:
function: WordSized
mir_op: true
- name: IncrementWarmUpCounter
num_temps: 1
mir_op: true
- name: LexicalCheck
operands:
input: BoxedValue
mir_op: true
- name: ThrowRuntimeLexicalError
call_instruction: true
mir_op: true
- name: ThrowMsg
call_instruction: true
mir_op: true
- name: GlobalDeclInstantiation
mir_op: true
- name: MemoryBarrier
arguments:
barrier: jit::MemoryBarrier
- name: Debugger
num_temps: 1
call_instruction: true
- name: NewTarget
result_type: BoxedValue
# Math.random()
- name: Random
result_type: WordSized
num_temps: 1
num_temps64: 2
mir_op: true
- name: CheckReturn
result_type: BoxedValue
operands:
returnValue: BoxedValue
thisValue: BoxedValue
- name: CheckIsObj
result_type: WordSized
operands:
value: BoxedValue
mir_op: true
- name: CheckObjCoercible
operands:
value: BoxedValue
- name: CheckClassHeritage
operands:
heritage: BoxedValue
num_temps: 2
- name: CheckThis
operands:
value: BoxedValue
- name: CheckThisReinit
operands:
thisValue: BoxedValue
- name: Generator
result_type: WordSized
operands:
callee: WordSized
environmentChain: WordSized
argsObject: WordSized
call_instruction: true
mir_op: true
- name: AsyncResolve
result_type: WordSized
operands:
generator: WordSized
value: BoxedValue
call_instruction: true
mir_op: true
- name: AsyncReject
result_type: WordSized
operands:
generator: WordSized
reason: BoxedValue
stack: BoxedValue
call_instruction: true
mir_op: true
- name: AsyncAwait
result_type: WordSized
operands:
value: BoxedValue
generator: WordSized
call_instruction: true
mir_op: true
- name: CanSkipAwait
result_type: WordSized
operands:
value: BoxedValue
call_instruction: true
mir_op: true
- name: MaybeExtractAwaitValue
result_type: BoxedValue
operands:
value: BoxedValue
canSkip: WordSized
call_instruction: true
mir_op: true
- name: DebugCheckSelfHosted
operands:
value: BoxedValue
call_instruction: true
- name: IsPackedArray
result_type: WordSized
operands:
object: WordSized
num_temps: 1
- name: GuardArrayIsPacked
operands:
array: WordSized
num_temps: 2
mir_op: true
- name: GetPrototypeOf
result_type: BoxedValue
operands:
target: WordSized
- name: ObjectWithProto
result_type: WordSized
operands:
prototype: BoxedValue
call_instruction: true
- name: ObjectStaticProto
result_type: WordSized
operands:
object: WordSized
- name: BuiltinObject
result_type: WordSized
call_instruction: true
mir_op: true
- name: SuperFunction
result_type: BoxedValue
operands:
callee: WordSized
num_temps: 1
- name: InitHomeObject
result_type: WordSized
operands:
function: WordSized
homeObject: BoxedValue
- name: IsTypedArrayConstructor
result_type: WordSized
operands:
object: WordSized
- name: LoadValueTag
result_type: WordSized
operands:
value: BoxedValue
- name: GuardTagNotEqual
operands:
lhs: WordSized
rhs: WordSized
- name: LoadWrapperTarget
result_type: WordSized
operands:
object: WordSized
mir_op: true
- name: GuardHasGetterSetter
operands:
object: WordSized
num_temps: 3
call_instruction: true
mir_op: true
- name: GuardIsExtensible
operands:
object: WordSized
num_temps: 1
- name: GuardInt32IsNonNegative
operands:
index: WordSized
- name: GuardInt32Range
operands:
input: WordSized
mir_op: true
- name: GuardIndexIsNotDenseElement
operands:
object: WordSized
index: WordSized
num_temps: 2
- name: GuardIndexIsValidUpdateOrAdd
operands:
object: WordSized
index: WordSized
num_temps: 2
- name: CallAddOrUpdateSparseElement
operands:
object: WordSized
index: WordSized
value: BoxedValue
call_instruction: true
mir_op: true
- name: CallGetSparseElement
result_type: BoxedValue
operands:
object: WordSized
index: WordSized
call_instruction: true
- name: CallNativeGetElement
result_type: BoxedValue
operands:
object: WordSized
index: WordSized
call_instruction: true
- name: CallNativeGetElementSuper
result_type: BoxedValue
operands:
object: WordSized
index: WordSized
receiver: BoxedValue
call_instruction: true
- name: CallObjectHasSparseElement
result_type: WordSized
operands:
object: WordSized
index: WordSized
num_temps: 2
call_instruction: true
- name: BigIntAsIntN
result_type: WordSized
operands:
bits: WordSized
input: WordSized
call_instruction: true
- name: GuardNonGCThing
operands:
input: BoxedValue
- name: ToHashableNonGCThing
result_type: BoxedValue
operands:
input: BoxedValue
num_temps: 1
- name: ToHashableString
result_type: WordSized
operands:
input: WordSized
- name: ToHashableValue
result_type: BoxedValue
operands:
input: BoxedValue
num_temps: 1
- name: HashNonGCThing
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
- name: HashString
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: HashSymbol
result_type: WordSized
operands:
input: WordSized
- name: HashBigInt
result_type: WordSized
operands:
input: WordSized
num_temps: 3
- name: HashObject
result_type: WordSized
operands:
setObject: WordSized
input: BoxedValue
num_temps: 4
- name: HashValue
result_type: WordSized
operands:
setObject: WordSized
input: BoxedValue
num_temps: 4
- name: SetObjectHasNonBigInt
result_type: WordSized
operands:
setObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 2
- name: SetObjectHasBigInt
result_type: WordSized
operands:
setObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 4
- name: SetObjectHasValue
result_type: WordSized
operands:
setObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 4
- name: SetObjectHasValueVMCall
result_type: WordSized
call_instruction: true
operands:
setObject: WordSized
input: BoxedValue
- name: SetObjectSize
result_type: WordSized
operands:
setObject: WordSized
- name: MapObjectHasNonBigInt
result_type: WordSized
operands:
mapObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 2
- name: MapObjectHasBigInt
result_type: WordSized
operands:
mapObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 4
- name: MapObjectHasValue
result_type: WordSized
operands:
mapObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 4
- name: MapObjectHasValueVMCall
result_type: WordSized
call_instruction: true
operands:
mapObject: WordSized
input: BoxedValue
- name: MapObjectGetNonBigInt
result_type: BoxedValue
operands:
mapObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 2
- name: MapObjectGetBigInt
result_type: BoxedValue
operands:
mapObject: WordSized
input: BoxedValue
hash: WordSized
num_temps: 4
- name: MapObjectGetValueVMCall
result_type: BoxedValue
call_instruction: true
operands:
mapObject: WordSized
input: BoxedValue
- name: MapObjectSize
result_type: WordSized
operands:
mapObject: WordSized
- name: BigIntAsUintN
result_type: WordSized
operands:
bits: WordSized
input: WordSized
call_instruction: true
- name: IonToWasmCall
gen_boilerplate: false
- name: IonToWasmCallV
gen_boilerplate: false
- name: IonToWasmCallI64
gen_boilerplate: false
- name: WasmAnyRefFromJSValue
result_type: WordSized
operands:
input: BoxedValue
num_temps: 1
- name: WasmAnyRefFromJSObject
result_type: WordSized
operands:
input: WordSized
- name: WasmAnyRefFromJSString
result_type: WordSized
operands:
input: WordSized
- name: WasmAnyRefIsJSString
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: WasmTrapIfAnyRefIsNotJSString
mir_op: true
operands:
input: WordSized
num_temps: 1
- name: WasmAnyRefJSStringLength
mir_op: true
result_type: WordSized
operands:
input: WordSized
num_temps: 1
- name: WasmNewI31Ref
mir_op: true
result_type: WordSized
operands:
value: WordSized
- name: WasmI31RefGet
mir_op: true
result_type: WordSized
operands:
value: WordSized
# Constant Simd128
- name: Simd128
result_type: WordSized
arguments:
simd128: SimdConstant
# (v128, v128, v128) -> v128 effect-free operation.
# temp is FPR.
- name: WasmTernarySimd128
result_type: WordSized
operands:
v0: WordSized
v1: WordSized
v2: WordSized
arguments:
simdOp: wasm::SimdOp
num_temps: 1
# (v128, v128) -> v128 effect-free operations
# lhs and dest are the same.
# temps (if in use) are FPR.
# The op may differ from the MIR node's op.
- name: WasmBinarySimd128
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
arguments:
simdOp: wasm::SimdOp
num_temps: 2
- name: WasmBinarySimd128WithConstant
result_type: WordSized
operands:
lhs: WordSized
arguments:
rhs: SimdConstant
num_temps: 1
mir_op: true
# (v128, i32) -> v128 effect-free variable-width shift operations
# lhs and dest are the same.
- name: WasmVariableShiftSimd128
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64)
# temp is an FPR (if in use).
num_temps: 1
#endif
mir_op: WasmShiftSimd128
# (v128, i32) -> v128 effect-free constant-width shift operations
- name: WasmConstantShiftSimd128
result_type: WordSized
operands:
src: WordSized
arguments:
shift: int32_t
mir_op: WasmShiftSimd128
# (v128) -> v128 sign replication operation.
- name: WasmSignReplicationSimd128
result_type: WordSized
operands:
src: WordSized
mir_op: WasmShiftSimd128
# // (v128, v128, imm_simd) -> v128 effect-free operation.
- name: WasmShuffleSimd128
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
arguments:
op: SimdShuffleOp
control: SimdConstant
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64)
# temp is FPR (and always in use).
num_temps: 1
#endif
# (v128, imm_simd) -> v128 effect-free operation.
- name: WasmPermuteSimd128
result_type: WordSized
operands:
src: WordSized
arguments:
op: SimdPermuteOp
control: SimdConstant
- name: WasmReplaceLaneSimd128
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: true
- name: WasmReplaceInt64LaneSimd128
result_type: WordSized
operands:
lhs: WordSized
rhs: Int64
mir_op: WasmReplaceLaneSimd128
# (scalar) -> v128 effect-free operations, scalar != int64
- name: WasmScalarToSimd128
result_type: WordSized
operands:
src: WordSized
mir_op: true
# (int64) -> v128 effect-free operations
- name: WasmInt64ToSimd128
result_type: WordSized
operands:
src: Int64
mir_op: WasmScalarToSimd128
# (v128) -> v128 effect-free operations
- name: WasmUnarySimd128
result_type: WordSized
operands:
src: WordSized
# temp is FPR (if in use).
num_temps: 1
mir_op: true
# // (v128, imm) -> scalar effect-free operations.
- name: WasmReduceSimd128
result_type: WordSized
operands:
src: WordSized
#ifdef JS_CODEGEN_ARM64
# temp is FPR (if in use).
num_temps: 1
#endif
mir_op: true
# (v128, onTrue, onFalse) test-and-branch operations.
- name: WasmReduceAndBranchSimd128
successors: [ifTrue, ifFalse]
operands:
src: WordSized
arguments:
simdOp: wasm::SimdOp
# (v128, imm) -> i64 effect-free operations
- name: WasmReduceSimd128ToInt64
result_type: Int64
operands:
src: WordSized
mir_op: WasmReduceSimd128
- name: WasmLoadLaneSimd128
result_type: WordSized
operands:
ptr: WordSized
src: WordSized
memoryBase: WordSized
#ifdef JS_CODEGEN_ARM64
num_temps: 1
#endif
mir_op: true
- name: WasmStoreLaneSimd128
result_type: WordSized
operands:
ptr: WordSized
src: WordSized
memoryBase: WordSized
#ifdef JS_CODEGEN_ARM64
num_temps: 1
#endif
mir_op: true
- name: Unbox
gen_boilerplate: false
- name: UnboxFloatingPoint
result_type: WordSized
operands:
input: BoxedValue
mir_op: Unbox
# Convert a 32-bit unsigned integer to a double.
- name: WasmUint32ToDouble
result_type: WordSized
operands:
input: WordSized
#ifdef JS_CODEGEN_X86
num_temps: 1
#endif
# Convert a 32-bit unsigned integer to a float32.
- name: WasmUint32ToFloat32
result_type: WordSized
operands:
input: WordSized
#ifdef JS_CODEGEN_X86
num_temps: 1
#endif
- name: DivI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 1
mir_op: Div
extra_name: true
- name: ModI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
#if !defined(JS_CODEGEN_ARM) && !defined(JS_CODEGEN_ARM64)
num_temps: 1
#endif
mir_op: Mod
extra_name: true
# Signed division by a power-of-two constant.
- name: DivPowTwoI
result_type: WordSized
operands:
numerator: WordSized
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64)
numeratorCopy: WordSized
#endif
arguments:
shift: int32_t
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64) || defined(JS_CODEGEN_ARM64)
# Negative divisor case not implemented for all targets.
negativeDivisor: bool
#endif
#if defined(JS_CODEGEN_MIPS32) || defined(JS_CODEGEN_MIPS64) || defined(JS_CODEGEN_LOONG64) || defined(JS_CODEGEN_RISCV64)
num_temps: 1
#endif
mir_op: Div
- name: ModPowTwoI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
mir_op: Mod
# Takes a tableswitch with an integer to decide.
- name: TableSwitch
operands:
index: WordSized
num_temps: 2
mir_op: true
# Takes a tableswitch with a value to decide.
- name: TableSwitchV
operands:
input: BoxedValue
num_temps: 3
mir_op: TableSwitch
- name: MulI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64)
lhsCopy: WordSized
#endif
mir_op: Mul
extra_name: true
#if !defined(JS_CODEGEN_X86) && !defined(JS_CODEGEN_X64)
defer_init: true
#endif
#ifdef JS_CODEGEN_X86
- name: BoxFloatingPoint
result_type: BoxedValue
operands:
input: WordSized
arguments:
type: MIRType
num_temps: 2
extra_name: true
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: DivOrModConstantI
gen_boilerplate: false
- name: UDivOrMod
gen_boilerplate: false
- name: UDivOrModConstant
gen_boilerplate: false
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
num_temps: 1
mir_op: true
- name: WasmAtomicLoadI64
result_type: Int64
operands:
memoryBase: WordSized
ptr: WordSized
num_temps64: 1
mir_op: WasmLoad
- name: WasmAtomicStoreI64
operands:
memoryBase: WordSized
ptr: WordSized
value: Int64
num_temps64: 1
mir_op: WasmStore
- name: WasmCompareExchangeI64
result_type: Int64
operands:
memoryBase: WordSized
ptr: WordSized
expected: Int64
replacement: Int64
mir_op: WasmCompareExchangeHeap
- name: WasmAtomicBinopI64
result_type: Int64
operands:
memoryBase: WordSized
ptr: WordSized
value: Int64
arguments:
access: const wasm::MemoryAccessDesc&
operation: AtomicOp
- name: WasmAtomicExchangeI64
result_type: Int64
operands:
memoryBase: WordSized
ptr: WordSized
value: Int64
arguments:
access: const wasm::MemoryAccessDesc&
#endif
#ifdef JS_CODEGEN_X64
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: DivOrModConstantI
gen_boilerplate: false
- name: UDivOrMod
gen_boilerplate: false
- name: UDivOrModConstant
gen_boilerplate: false
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
num_temps: 1
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
num_temps: 1
mir_op: true
#endif
#ifdef JS_CODEGEN_ARM
- name: BoxFloatingPoint
result_type: BoxedValue
operands:
input: WordSized
arguments:
type: MIRType
num_temps: 1
extra_name: true
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
# LSoftDivI is a software divide for ARM cores that don't support a hardware
# divide instruction, implemented as a C++ native call.
- name: SoftDivI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: Div
- name: SoftModI
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 1
call_instruction: true
mir_op: Mod
- name: ModMaskI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
num_temps: 2
mir_op: Mod
- name: UDiv
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: Div
defer_init: true
- name: UMod
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: Mod
defer_init: true
- name: SoftUDivOrMod
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
call_instruction: true
mir_op: Instruction
- name: Int64ToFloatingPointCall
result_type: WordSized
operands:
input: Int64
instance: WordSized
call_instruction: true
mir_op: BuiltinInt64ToFloatingPoint
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
instance: WordSized
call_instruction: true
mir_op: WasmBuiltinTruncateToInt64
- name: WasmAtomicLoadI64
result_type: Int64
operands:
ptr: WordSized
memoryBase: WordSized
mir_op: WasmLoad
- name: WasmAtomicStoreI64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps64: 1
mir_op: WasmStore
- name: WasmCompareExchangeI64
result_type: Int64
operands:
ptr: WordSized
expected: Int64
replacement: Int64
memoryBase: WordSized
mir_op: WasmCompareExchangeHeap
- name: WasmAtomicBinopI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
arguments:
access: const wasm::MemoryAccessDesc&
operation: AtomicOp
num_temps64: 1
- name: WasmAtomicExchangeI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
arguments:
access: const wasm::MemoryAccessDesc&
#endif
#ifdef JS_CODEGEN_ARM64
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: DivConstantI
result_type: WordSized
operands:
numerator: WordSized
arguments:
denominator: int32_t
num_temps: 1
mir_op: Div
- name: UDivConstantI
result_type: WordSized
operands:
numerator: WordSized
arguments:
denominator: int32_t
num_temps: 1
mir_op: Div
- name: ModMaskI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
num_temps: 2
mir_op: Mod
- name: UDiv
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
num_temps: 1
mir_op: Div
- name: UMod
result_type: WordSized
operands:
lhs: WordSized
rhs: WordSized
mir_op: Mod
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
mir_op: true
#endif
#ifdef JS_CODEGEN_MIPS32
- name: BoxFloatingPoint
result_type: BoxedValue
operands:
input: WordSized
arguments:
type: MIRType
num_temps: 1
extra_name: true
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: UDivOrMod
gen_boilerplate: false
- name: ModMaskI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
num_temps: 2
mir_op: Mod
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
call_instruction: true
mir_op: true
- name: WasmUnalignedLoad
result_type: WordSized
operands:
ptr: WordSized
memoryBase: WordSized
num_temps: 2
mir_op: WasmLoad
- name: WasmUnalignedLoadI64
result_type: Int64
operands:
ptr: WordSized
memoryBase: WordSized
num_temps: 2
mir_op: WasmLoad
- name: WasmUnalignedStore
operands:
ptr: WordSized
value: WordSized
memoryBase: WordSized
num_temps: 2
mir_op: WasmStore
- name: WasmUnalignedStoreI64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps: 2
mir_op: WasmStore
- name: WasmAtomicLoadI64
result_type: Int64
operands:
ptr: WordSized
mir_op: WasmLoad
- name: WasmAtomicStoreI64
operands:
ptr: WordSized
value: Int64
num_temps: 1
mir_op: WasmStore
- name: WasmCompareExchangeI64
result_type: Int64
operands:
ptr: WordSized
oldValue: Int64
newValue: Int64
memoryBase: WordSized
mir_op: WasmCompareExchangeHeap
- name: WasmAtomicBinopI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps64: 1
mir_op: WasmAtomicBinopHeap
- name: WasmAtomicExchangeI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
mir_op: WasmAtomicExchangeHeap
#endif
#ifdef JS_CODEGEN_MIPS64
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrMod
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: ModMaskI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
num_temps: 2
mir_op: Mod
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
mir_op: true
- name: WasmUnalignedLoad
result_type: WordSized
operands:
ptr: WordSized
memoryBase: WordSized
num_temps: 2
mir_op: WasmLoad
- name: WasmUnalignedLoadI64
result_type: Int64
operands:
ptr: WordSized
memoryBase: WordSized
num_temps: 2
mir_op: WasmLoad
- name: WasmUnalignedStore
operands:
ptr: WordSized
value: WordSized
memoryBase: WordSized
num_temps: 2
mir_op: WasmStore
- name: WasmUnalignedStoreI64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps: 2
mir_op: WasmStore
- name: WasmCompareExchangeI64
result_type: Int64
operands:
ptr: WordSized
oldValue: Int64
newValue: Int64
memoryBase: WordSized
mir_op: WasmCompareExchangeHeap
- name: WasmAtomicBinopI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps64: 1
mir_op: WasmAtomicBinopHeap
- name: WasmAtomicExchangeI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
mir_op: WasmAtomicExchangeHeap
#endif
#ifdef JS_CODEGEN_LOONG64
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrMod
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: ModMaskI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
num_temps: 2
mir_op: Mod
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
mir_op: true
- name: WasmCompareExchangeI64
result_type: Int64
operands:
ptr: WordSized
oldValue: Int64
newValue: Int64
memoryBase: WordSized
mir_op: WasmCompareExchangeHeap
- name: WasmAtomicBinopI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps64: 1
mir_op: WasmAtomicBinopHeap
- name: WasmAtomicExchangeI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
mir_op: WasmAtomicExchangeHeap
#endif
#ifdef JS_CODEGEN_RISCV64
- name: DivOrModI64
gen_boilerplate: false
- name: UDivOrMod
gen_boilerplate: false
- name: UDivOrModI64
gen_boilerplate: false
- name: ModMaskI
result_type: WordSized
operands:
input: WordSized
arguments:
shift: int32_t
num_temps: 2
mir_op: Mod
- name: WasmTruncateToInt64
result_type: Int64
operands:
input: WordSized
mir_op: true
- name: Int64ToFloatingPoint
result_type: WordSized
operands:
input: Int64
mir_op: true
- name: WasmCompareExchangeI64
result_type: Int64
operands:
ptr: WordSized
oldValue: Int64
newValue: Int64
memoryBase: WordSized
mir_op: WasmCompareExchangeHeap
- name: WasmAtomicBinopI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
num_temps64: 1
mir_op: WasmAtomicBinopHeap
- name: WasmAtomicExchangeI64
result_type: Int64
operands:
ptr: WordSized
value: Int64
memoryBase: WordSized
mir_op: WasmAtomicExchangeHeap
#endif
#ifdef FUZZING_JS_FUZZILLI
- name: FuzzilliHashT
result_type: WordSized
operands:
value: WordSized
num_temps: 2
mir_op: FuzzilliHash
- name: FuzzilliHashV
result_type: WordSized
operands:
value: BoxedValue
num_temps: 2
mir_op: FuzzilliHash
- name: FuzzilliHashStore
operands:
value: WordSized
num_temps: 2
mir_op: FuzzilliHashStore
#endif
#ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT
- name: AddDisposableResource
operands:
environment: WordSized
resource: BoxedValue
method: BoxedValue
needsClosure: WordSized
arguments:
hint: uint8_t
call_instruction: true
- name: TakeDisposeCapability
operands:
environment: WordSized
result_type: BoxedValue
- name: CreateSuppressedError
operands:
error: BoxedValue
suppressed: BoxedValue
result_type: WordSized
call_instruction: true
#endif
