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1617 lines (1457 loc) · 37.7 KB
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# Copyright (C) 2018-2026 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# This file us consumed by generator/main.rb in order to generate Bytecodes.h/BytecodeStructs.h
types [
:VirtualRegister,
:BasicBlockLocation,
:BoundLabel,
:DataOnlyCallLinkInfo,
:DebugHookType,
:ECMAMode,
:ErrorTypeWithExtension,
:EnumeratorMetadata,
:GetByIdMode,
:GetByIdModeMetadata,
:GetPutInfo,
:IndexingType,
:IterationModeMetadata,
:JSCell,
:JSGlobalLexicalEnvironment,
:JSGlobalObject,
:JSModuleEnvironment,
:JSObject,
:JSScope,
:JSType,
:JSValue,
:ResultType,
:OperandTypes,
:PrivateFieldPutKind,
:ProfileTypeBytecodeFlag,
:PropertyOffset,
:PutByIdFlags,
:ResolveType,
# FIXME: We should use WriteBarrierStructureID instead.
:StructureID,
:StructureChain,
:SymbolTable,
:SymbolTableOrScopeDepth,
:ToThisStatus,
:TypeLocation,
:InlineWatchpointSet,
:WriteBarrierStructureID,
:ValueProfileAndVirtualRegisterBuffer,
:ArrayProfile,
:ArrayAllocationProfile,
:ObjectAllocationProfile,
]
templates [
:WriteBarrier,
:WriteBarrierBase,
]
begin_section :Bytecode,
emit_in_h_file: true,
emit_in_structs_file: true,
emit_in_asm_file: true,
emit_opcode_id_string_values_in_h_file: true,
macro_name_component: :BYTECODE,
asm_prefix: "llint_",
op_prefix: "op_",
preserve_order: true
# Ops with checkpoint must come first
op :tail_call_varargs,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
thisValue?: VirtualRegister,
arguments?: VirtualRegister,
firstFree: VirtualRegister,
firstVarArg: int,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
},
tmps: {
argCountIncludingThis: unsigned
},
checkpoints: {
determiningArgCount: nil,
makeCall: nil,
}
op :call_varargs,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
thisValue?: VirtualRegister,
arguments?: VirtualRegister,
firstFree: VirtualRegister,
firstVarArg: int,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
},
tmps: {
argCountIncludingThis: unsigned,
},
checkpoints: {
determiningArgCount: nil,
makeCall: nil,
}
op :call_varargs_with_spread,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
thisValue?: VirtualRegister,
firstFree: VirtualRegister,
argv: VirtualRegister,
argc: unsigned,
bitVector: unsigned,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
},
tmps: {
argCountIncludingThis: unsigned,
},
checkpoints: {
determiningArgCount: nil,
makeCall: nil,
}
# Semantically, this is nextResult = next.@call(iterator); done = nextResult.done; value = done ? undefined : nextResult.value;
op :iterator_next,
args: {
done: VirtualRegister,
value: VirtualRegister,
iterable: VirtualRegister,
next: VirtualRegister,
iterator: VirtualRegister,
stackOffset: unsigned,
nextResultValueProfile: unsigned,
doneValueProfile: unsigned,
valueValueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
doneModeMetadata: GetByIdModeMetadata,
valueModeMetadata: GetByIdModeMetadata,
iterableProfile: ArrayProfile,
iterationMetadata: IterationModeMetadata,
},
tmps: {
nextResult: JSValue,
},
checkpoints: {
computeNext: nil,
getDone: nil,
getValue: nil,
}
op :construct_varargs,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
thisValue?: VirtualRegister,
arguments?: VirtualRegister,
firstFree: VirtualRegister,
firstVarArg: int,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
},
tmps: {
argCountIncludingThis: unsigned
},
checkpoints: {
determiningArgCount: nil,
makeCall: nil,
}
op :super_construct_varargs,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
thisValue?: VirtualRegister,
arguments?: VirtualRegister,
firstFree: VirtualRegister,
firstVarArg: int,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
cachedCallee: WriteBarrier[JSCell],
},
tmps: {
argCountIncludingThis: unsigned
},
checkpoints: {
determiningArgCount: nil,
makeCall: nil,
}
# Semantically, this is iterator = symbolIterator.@call(iterable); next = iterator.next;
# where symbolIterator the result of iterable[Symbol.iterator] (which is done in a different bytecode).
# For builtin iterators, however, this has special behavior where next becomes a sentinel, which
# indicates that we are in a known iteration mode to op_iterator_next. In IterationMode::FastArray
# and IterationMode::FastString iterator becomes the sentinel instead, and next is the index into iterable.
op :iterator_open,
args: {
iterator: VirtualRegister,
next: VirtualRegister,
symbolIterator: VirtualRegister,
iterable: VirtualRegister,
stackOffset: unsigned,
iterableValueProfile: unsigned,
iteratorValueProfile: unsigned,
nextValueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
modeMetadata: GetByIdModeMetadata,
arrayProfile: ArrayProfile,
iterationMetadata: IterationModeMetadata,
},
checkpoints: {
symbolCall: nil,
getNext: nil,
}
# iterator = symbolIterator.@call(iterable); next = iterator.next. Mirrors op_iterator_open; the fast
# path skips the call for a genuine async generator, leaving the driver sentinel in next.
op :async_iterator_open,
args: {
iterator: VirtualRegister,
next: VirtualRegister,
symbolIterator: VirtualRegister,
iterable: VirtualRegister,
stackOffset: unsigned,
iterableValueProfile: unsigned,
iteratorValueProfile: unsigned,
nextValueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
modeMetadata: GetByIdModeMetadata,
iterationMetadata: IterationModeMetadata,
},
checkpoints: {
symbolCall: nil,
getNext: nil,
}
# Semantically, this is dst = value instanceof constructor.
op :instanceof,
args: {
dst: VirtualRegister,
value: VirtualRegister,
constructor: VirtualRegister,
hasInstanceOrPrototype: VirtualRegister,
hasInstanceValueProfile: unsigned,
prototypeValueProfile: unsigned,
},
metadata: {
hasInstanceModeMetadata: GetByIdModeMetadata,
prototypeModeMetadata: GetByIdModeMetadata,
},
checkpoints: {
getHasInstance: nil,
getPrototype: nil,
instanceof: nil,
}
# Opcodes with metadata come next, in decreasing order of metadata alignment requirements
# Alignment: 8
op :set_private_brand, args: {
base: VirtualRegister,
brand: VirtualRegister,
},
metadata: {
oldStructureID: StructureID,
newStructureID: StructureID,
brand: WriteBarrier[JSCell],
}
op :check_private_brand,
args: {
base: VirtualRegister,
brand: VirtualRegister,
},
metadata: {
structureID: StructureID,
brand: WriteBarrier[JSCell],
}
op :put_by_id,
args: {
base: VirtualRegister,
property: unsigned,
value: VirtualRegister,
flags: PutByIdFlags,
},
metadata: {
oldStructureID: StructureID,
offset: unsigned,
newStructureID: StructureID,
structureChain: WriteBarrierBase[StructureChain],
}
op :construct,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
argc: unsigned,
argv: unsigned,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
}
op :super_construct,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
argc: unsigned,
argv: unsigned,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
cachedCallee: WriteBarrier[JSCell],
}
op :tail_call,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
argc: unsigned,
argv: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
arrayProfile: ArrayProfile,
}
op :call_direct_eval,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
argc: unsigned,
argv: unsigned,
thisValue: VirtualRegister,
scope: VirtualRegister,
lexicallyScopedFeatures: unsigned,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
}
op_group :CreateInternalFieldObjectOp,
[
:create_generator,
:create_async_generator,
],
args: {
dst: VirtualRegister,
callee: VirtualRegister,
},
metadata: {
cachedCallee: WriteBarrier[JSCell]
}
op :create_promise,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
},
metadata: {
cachedCallee: WriteBarrier[JSCell]
}
op :catch,
args: {
exception: VirtualRegister,
thrownValue: VirtualRegister,
},
metadata: {
buffer: ValueProfileAndVirtualRegisterBuffer.*,
}
op :new_array_with_size,
args: {
dst: VirtualRegister,
length: VirtualRegister,
},
metadata: {
arrayAllocationProfile: ArrayAllocationProfile,
}
op :new_array_buffer,
args: {
dst: VirtualRegister,
immutableButterfly: VirtualRegister,
recommendedIndexingType: IndexingType
},
metadata: {
arrayAllocationProfile: ArrayAllocationProfile,
}
op :get_by_id,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: unsigned,
valueProfile: unsigned,
},
metadata: {
modeMetadata: GetByIdModeMetadata,
}
op :get_length,
args: {
dst: VirtualRegister,
base: VirtualRegister,
valueProfile: unsigned,
},
metadata: {
modeMetadata: GetByIdModeMetadata,
arrayProfile: ArrayProfile,
}
op :profile_type,
args: {
targetVirtualRegister: VirtualRegister,
symbolTableOrScopeDepth: SymbolTableOrScopeDepth,
flag: ProfileTypeBytecodeFlag,
identifier?: unsigned,
resolveType: ResolveType,
},
metadata: {
typeLocation: TypeLocation.*,
}
op :profile_control_flow,
args: {
textOffset: int,
},
metadata: {
basicBlockLocation: BasicBlockLocation.*,
}
op :new_array_with_species,
args: {
dst: VirtualRegister,
length: VirtualRegister,
array: VirtualRegister,
valueProfile: unsigned,
},
metadata: {
arrayAllocationProfile: ArrayAllocationProfile,
arrayProfile: ArrayProfile,
}
# op_call variations
op :call,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
argc: unsigned,
argv: unsigned,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
arrayProfile: ArrayProfile,
}
op :call_ignore_result,
args: {
callee: VirtualRegister,
argc: unsigned,
argv: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
arrayProfile: ArrayProfile,
}
# dst = next.call(iterator [, value]), or -- if next is the fast async generator driver sentinel --
# enqueue value onto the producer instead (dst unused; the result is awaited via a separate op_yield).
# The resume value (yield* passes the received value; for-await leaves hasValue false, so next() is
# called with just `this`) is call argument index 1: like op_call's argc/argv model, there's no separate
# VirtualRegister field for it -- its register is derived from stackOffset via
# virtualRegisterForArgumentIncludingThis(1, -stackOffset) whenever hasValue is set. This keeps every
# arg field a plain unsigned/bool, so an absent resume value never forces this bytecode to Wide32
# encoding. Unlike op_iterator_next there are no getDone/getValue checkpoints: the intervening await
# makes .done/.value separate get_by_id bytecodes after suspension.
op :async_iterator_next,
args: {
dst: VirtualRegister,
next: VirtualRegister,
iterator: VirtualRegister,
driver: VirtualRegister,
hasValue: bool,
stackOffset: unsigned,
valueProfile: unsigned,
},
metadata: {
callLinkInfo: DataOnlyCallLinkInfo,
iterationMetadata: IterationModeMetadata,
}
op :resolve_scope,
args: {
dst: VirtualRegister, # offset 1
scope: VirtualRegister, # offset 2
var: unsigned, # offset 3
# $begin: :private,
resolveType: ResolveType,
localScopeDepth: unsigned,
},
metadata: {
resolveType: ResolveType, # offset 4
_0: { # offset 5
localScopeDepth: unsigned,
globalLexicalBindingEpoch: unsigned,
},
_1: { # offset 6
# written during linking
lexicalEnvironment: WriteBarrierBase[JSCell], # lexicalEnvironment && type == ModuleVar
symbolTable: WriteBarrierBase[SymbolTable], # lexicalEnvironment && type != ModuleVar
constantScope: WriteBarrierBase[JSScope],
# written from the slow path
globalLexicalEnvironment: WriteBarrierBase[JSGlobalLexicalEnvironment],
globalObject: WriteBarrierBase[JSGlobalObject],
},
}
op :get_from_scope,
args: {
dst: VirtualRegister,
scope: VirtualRegister,
var: unsigned,
getPutInfo: GetPutInfo,
localScopeDepth: unsigned,
offset: unsigned,
valueProfile: unsigned,
},
metadata: {
getPutInfo: GetPutInfo,
_: {
watchpointSet: InlineWatchpointSet.*,
structureID: WriteBarrierStructureID,
},
operand: uintptr_t,
},
metadata_initializers: {
getPutInfo: :getPutInfo,
operand: :offset,
}
op :put_to_scope,
args: {
scope: VirtualRegister,
var: unsigned,
value: VirtualRegister,
getPutInfo: GetPutInfo,
symbolTableOrScopeDepth: SymbolTableOrScopeDepth,
offset: unsigned,
},
metadata: {
getPutInfo: GetPutInfo,
_: {
structureID: WriteBarrierStructureID,
watchpointSet: InlineWatchpointSet.*,
},
operand: uintptr_t,
},
metadata_initializers: {
getPutInfo: :getPutInfo,
operand: :offset,
}
op :create_this,
args: {
dst: VirtualRegister,
callee: VirtualRegister,
inlineCapacity: unsigned,
},
metadata: {
cachedCallee: WriteBarrier[JSCell]
}
op :new_object,
args: {
dst: VirtualRegister,
inlineCapacity: unsigned,
},
metadata: {
objectAllocationProfile: ObjectAllocationProfile,
}
op :new_array,
args: {
dst: VirtualRegister,
argv: VirtualRegister,
argc: unsigned,
recommendedIndexingType: IndexingType,
},
metadata: {
arrayAllocationProfile: ArrayAllocationProfile,
}
op :put_private_name,
args: {
base: VirtualRegister,
property: VirtualRegister,
value: VirtualRegister,
putKind: PrivateFieldPutKind,
},
metadata: {
property: WriteBarrier[JSCell],
oldStructureID: StructureID,
offset: unsigned,
newStructureID: StructureID,
}
op :get_private_name,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: VirtualRegister,
valueProfile: unsigned,
},
metadata: {
structureID: StructureID,
offset: unsigned,
property: WriteBarrier[JSCell],
}
# Alignment: 4
op :get_by_val_with_this,
args: {
dst: VirtualRegister,
base: VirtualRegister,
thisValue: VirtualRegister,
property: VirtualRegister,
valueProfile: unsigned,
},
metadata: {
arrayProfile: ArrayProfile,
}
op :get_by_val,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: VirtualRegister,
valueProfile: unsigned,
},
metadata: {
arrayProfile: ArrayProfile,
}
op :put_by_val,
args: {
base: VirtualRegister,
property: VirtualRegister,
value: VirtualRegister,
ecmaMode: ECMAMode,
},
metadata: {
arrayProfile: ArrayProfile,
}
op :put_by_val_direct,
args: {
base: VirtualRegister,
property: VirtualRegister,
value: VirtualRegister,
ecmaMode: ECMAMode,
},
metadata: {
arrayProfile: ArrayProfile,
}
op :in_by_val,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: VirtualRegister,
},
metadata: {
arrayProfile: ArrayProfile,
}
op :enumerator_next,
args: {
# out
propertyName: VirtualRegister,
# in/out
mode: VirtualRegister, # Will always be a JS UInt32 representing a JSForInMode.
index: VirtualRegister, # Gets reset to zero every time mode changes.
# in
base: VirtualRegister,
enumerator: VirtualRegister,
},
metadata: {
arrayProfile: ArrayProfile,
enumeratorMetadata: EnumeratorMetadata,
}
op :enumerator_in_by_val,
args: {
dst: VirtualRegister,
base: VirtualRegister,
mode: VirtualRegister,
propertyName: VirtualRegister,
index: VirtualRegister,
enumerator: VirtualRegister,
},
metadata: {
arrayProfile: ArrayProfile,
enumeratorMetadata: EnumeratorMetadata,
}
op :enumerator_has_own_property,
args: {
dst: VirtualRegister,
base: VirtualRegister,
mode: VirtualRegister,
propertyName: VirtualRegister,
index: VirtualRegister,
enumerator: VirtualRegister,
},
metadata: {
arrayProfile: ArrayProfile,
enumeratorMetadata: EnumeratorMetadata,
}
op :enumerator_put_by_val,
args: {
base: VirtualRegister,
mode: VirtualRegister,
propertyName: VirtualRegister,
index: VirtualRegister,
enumerator: VirtualRegister,
value: VirtualRegister,
ecmaMode: ECMAMode,
},
metadata: {
arrayProfile: ArrayProfile,
enumeratorMetadata: EnumeratorMetadata,
}
op :to_this,
args: {
srcDst: VirtualRegister,
ecmaMode: ECMAMode,
valueProfile: unsigned,
},
metadata: {
cachedStructureID: StructureID,
toThisStatus: ToThisStatus,
}
op :enumerator_get_by_val,
args: {
dst: VirtualRegister,
base: VirtualRegister,
mode: VirtualRegister,
propertyName: VirtualRegister,
index: VirtualRegister,
enumerator: VirtualRegister,
valueProfile: unsigned,
},
metadata: {
arrayProfile: ArrayProfile,
enumeratorMetadata: EnumeratorMetadata,
}
op :get_by_id_direct,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: unsigned,
valueProfile: unsigned, # not used in llint
},
metadata: {
structureID: StructureID,
offset: unsigned,
}
# Alignment: 1
op :jneq_ptr,
args: {
value: VirtualRegister,
specialPointer: VirtualRegister,
targetLabel: BoundLabel,
},
metadata: {
hasJumped: bool,
}
op :iterator_close_check,
args: {
iterator: VirtualRegister,
next: VirtualRegister,
iterable: VirtualRegister,
targetLabel: BoundLabel,
},
metadata: {
seenModes: uint8_t,
}
# Opcodes without metadata are last
op :get_argument,
args: {
dst: VirtualRegister,
index: int,
valueProfile: unsigned,
}
op :get_from_arguments,
args: {
dst: VirtualRegister,
arguments: VirtualRegister,
index: unsigned,
valueProfile: unsigned,
}
op :get_prototype_of,
args: {
dst: VirtualRegister,
value: VirtualRegister,
valueProfile: unsigned,
}
op :get_internal_field,
args: {
dst: VirtualRegister,
base: VirtualRegister,
index: unsigned,
valueProfile: unsigned,
}
op :get_by_id_with_this,
args: {
dst: VirtualRegister,
base: VirtualRegister,
thisValue: VirtualRegister,
property: unsigned,
valueProfile: unsigned,
}
op :to_object,
args: {
dst: VirtualRegister,
operand: VirtualRegister,
message: unsigned,
valueProfile: unsigned,
}
op :in_by_id,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: unsigned,
}
op :has_private_name,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: VirtualRegister,
}
op :has_private_brand,
args: {
dst: VirtualRegister,
base: VirtualRegister,
brand: VirtualRegister,
}
op :put_by_id_with_this,
args: {
base: VirtualRegister,
thisValue: VirtualRegister,
property: unsigned,
value: VirtualRegister,
ecmaMode: ECMAMode,
}
op :del_by_id,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: unsigned,
ecmaMode: ECMAMode,
}
op :put_by_val_with_this,
args: {
base: VirtualRegister,
thisValue: VirtualRegister,
property: VirtualRegister,
value: VirtualRegister,
ecmaMode: ECMAMode,
}
op :del_by_val,
args: {
dst: VirtualRegister,
base: VirtualRegister,
property: VirtualRegister,
ecmaMode: ECMAMode,
}
op :put_getter_by_id,
args: {
base: VirtualRegister,
property: unsigned,
attributes: unsigned,
accessor: VirtualRegister,
}
op :put_setter_by_id,
args: {
base: VirtualRegister,
property: unsigned,
attributes: unsigned,
accessor: VirtualRegister,
}
op :put_getter_setter_by_id,
args: {
base: VirtualRegister,
property: unsigned,
attributes: unsigned,
getter: VirtualRegister,
setter: VirtualRegister,
}
op :put_getter_by_val,
args: {
base: VirtualRegister,
property: VirtualRegister,
attributes: unsigned,
accessor: VirtualRegister,
}
op :put_setter_by_val,
args: {
base: VirtualRegister,
property: VirtualRegister,
attributes: unsigned,
accessor: VirtualRegister,
}
op :define_data_property,
args: {
base: VirtualRegister,
property: VirtualRegister,
value: VirtualRegister,
attributes: VirtualRegister,
}
op :define_accessor_property,
args: {
base: VirtualRegister,
property: VirtualRegister,
getter: VirtualRegister,
setter: VirtualRegister,
attributes: VirtualRegister,
}