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sdk/pkg/vm/lib/bytecode/dbc.dart
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Alexander Markov 741f662a60 [vm/kernel/bytecode] Fix number of checked arguments in bytecode calls 
Number of checked arguments is corrected in ICData objects created when
reading bytecode, both for instance and static calls.

InstanceCall1 and InstanceCall2 bytecode instructions are replaced with
InstanceCall which works for any number of checked arguments. This makes
decision on number of checked arguments internal to VM and it is no longer
exposed to bytecode.

Change-Id: I0bba01eca6347336f3832de863b2ce4715fda04a
Reviewed-on: https://dart-review.googlesource.com/69421
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2018-08-13 17:50:21 +00:00

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// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library vm.bytecode.dbc;
// List of changes from original DBC (described in runtime/vm/constants_dbc.h):
//
// 1. StoreFieldTOS, LoadFieldTOS instructions:
// D = index of constant pool entry with InstanceField tag.
// (instead of field offset in words).
//
// 2. EntryOptional instruction is revived in order to re-shuffle optional
// parameters. This DBC instruction was removed at
// https://github.com/dart-lang/sdk/commit/cf1de7d46cd88e204380e8f96a993439be56b24c
//
// 3. NativeCall instruction is modified to have 'D' format and take 1 argument:
// D = index of NativeEntry constant pool entry
//
// 4. JumpIfNoAsserts instruction is added. This instruction jumps to the given
// target if assertions are not enabled. It has the same format as Jump
// instruction.
//
// 5. StoreContextParent stores context SP[0] into `parent` field of context SP[-1].
//
// 6. LoadContextParent loads parent from context SP[0].
//
// 7. StoreContextVar stores value SP[0] into context SP[-1] at index D.
//
// 8. LoadContextVar loads value from context SP[0] at index D.
//
// 9. LoadTypeArgumentsField loads instantiator type arguments from an
// instance SP[0].
// D = index of TypeArgumentsField constant pool entry corresponding
// to an instance's class.
//
// 10. InstanceCall1 and InstanceCall2 instructions are superseded by
// InstanceCall which works for any number of checked arguments.
//
enum Opcode {
kTrap,
kNop,
kCompile,
kHotCheck,
kIntrinsic,
kDrop1,
kDropR,
kDrop,
kJump,
kJumpIfNoAsserts,
kReturn,
kReturnTOS,
kMove,
kSwap,
kPush,
kLoadConstant,
kLoadClassId,
kLoadClassIdTOS,
kPushConstant,
kStoreLocal,
kPopLocal,
kIndirectStaticCall,
kStaticCall,
kInstanceCall,
kInstanceCall1Opt,
kInstanceCall2Opt,
kPushPolymorphicInstanceCall,
kPushPolymorphicInstanceCallByRange,
kNativeCall,
kOneByteStringFromCharCode,
kStringToCharCode,
kAddTOS,
kSubTOS,
kMulTOS,
kBitOrTOS,
kBitAndTOS,
kEqualTOS,
kLessThanTOS,
kGreaterThanTOS,
kSmiAddTOS,
kSmiSubTOS,
kSmiMulTOS,
kSmiBitAndTOS,
kAdd,
kSub,
kMul,
kDiv,
kMod,
kShl,
kShr,
kShlImm,
kNeg,
kBitOr,
kBitAnd,
kBitXor,
kBitNot,
kMin,
kMax,
kWriteIntoDouble,
kUnboxDouble,
kCheckedUnboxDouble,
kUnboxInt32,
kBoxInt32,
kBoxUint32,
kSmiToDouble,
kDoubleToSmi,
kDAdd,
kDSub,
kDMul,
kDDiv,
kDNeg,
kDSqrt,
kDMin,
kDMax,
kDCos,
kDSin,
kDPow,
kDMod,
kDTruncate,
kDFloor,
kDCeil,
kDoubleToFloat,
kFloatToDouble,
kDoubleIsNaN,
kDoubleIsInfinite,
kStoreStaticTOS,
kPushStatic,
kInitStaticTOS,
kIfNeStrictTOS,
kIfEqStrictTOS,
kIfNeStrictNumTOS,
kIfEqStrictNumTOS,
kIfSmiLtTOS,
kIfSmiLeTOS,
kIfSmiGeTOS,
kIfSmiGtTOS,
kIfNeStrict,
kIfEqStrict,
kIfLe,
kIfLt,
kIfGe,
kIfGt,
kIfULe,
kIfULt,
kIfUGe,
kIfUGt,
kIfDNe,
kIfDEq,
kIfDLe,
kIfDLt,
kIfDGe,
kIfDGt,
kIfNeStrictNum,
kIfEqStrictNum,
kIfEqNull,
kIfNeNull,
kCreateArrayTOS,
kCreateArrayOpt,
kAllocate,
kAllocateT,
kAllocateOpt,
kAllocateTOpt,
kStoreIndexedTOS,
kStoreIndexed,
kStoreIndexedUint8,
kStoreIndexedExternalUint8,
kStoreIndexedOneByteString,
kStoreIndexedUint32,
kStoreIndexedFloat32,
kStoreIndexed4Float32,
kStoreIndexedFloat64,
kStoreIndexed8Float64,
kNoSuchMethod,
kTailCall,
kTailCallOpt,
kLoadArgDescriptor,
kLoadArgDescriptorOpt,
kLoadFpRelativeSlot,
kLoadFpRelativeSlotOpt,
kStoreFpRelativeSlot,
kStoreFpRelativeSlotOpt,
kLoadIndexedTOS,
kLoadIndexed,
kLoadIndexedUint8,
kLoadIndexedInt8,
kLoadIndexedInt32,
kLoadIndexedUint32,
kLoadIndexedExternalUint8,
kLoadIndexedExternalInt8,
kLoadIndexedFloat32,
kLoadIndexed4Float32,
kLoadIndexedFloat64,
kLoadIndexed8Float64,
kLoadIndexedOneByteString,
kLoadIndexedTwoByteString,
kStoreField,
kStoreFieldExt,
kStoreFieldTOS,
kStoreContextParent,
kStoreContextVar,
kLoadField,
kLoadFieldExt,
kLoadUntagged,
kLoadFieldTOS,
kLoadTypeArgumentsField,
kLoadContextParent,
kLoadContextVar,
kBooleanNegateTOS,
kBooleanNegate,
kThrow,
kEntry,
kEntryOptional,
kEntryOptimized,
kFrame,
kSetFrame,
kAllocateContext,
kAllocateUninitializedContext,
kCloneContext,
kMoveSpecial,
kInstantiateType,
kInstantiateTypeArgumentsTOS,
kInstanceOf,
kBadTypeError,
kAssertAssignable,
kAssertSubtype,
kAssertBoolean,
kTestSmi,
kTestCids,
kCheckSmi,
kCheckEitherNonSmi,
kCheckClassId,
kCheckClassIdRange,
kCheckBitTest,
kCheckCids,
kCheckCidsByRange,
kCheckStack,
kCheckStackAlwaysExit,
kCheckFunctionTypeArgs,
kDebugStep,
kDebugBreak,
kDeopt,
kDeoptRewind,
}
enum Encoding {
k0,
kA,
kAD,
kAX,
kD,
kX,
kABC,
kABY,
kT,
}
enum Operand {
none, // ignored / non-existent operand
imm, // immediate operand
lit, // constant literal from object pool
reg, // register (unsigned FP relative local)
xeg, // x-register (signed FP relative local)
tgt, // jump target relative to the PC of the current instruction
spe, // SpecialIndex
}
class Format {
final Encoding encoding;
final List<Operand> operands;
const Format(this.encoding, this.operands);
}
const Map<Opcode, Format> BytecodeFormats = const {
Opcode.kTrap: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kNop: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kCompile: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kHotCheck: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kIntrinsic: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kDrop1: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kDropR: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kDrop: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kJump: const Format(
Encoding.kT, const [Operand.tgt, Operand.none, Operand.none]),
Opcode.kJumpIfNoAsserts: const Format(
Encoding.kT, const [Operand.tgt, Operand.none, Operand.none]),
Opcode.kReturn: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kReturnTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kMove: const Format(
Encoding.kAX, const [Operand.reg, Operand.xeg, Operand.none]),
Opcode.kSwap: const Format(
Encoding.kAX, const [Operand.reg, Operand.xeg, Operand.none]),
Opcode.kPush: const Format(
Encoding.kX, const [Operand.xeg, Operand.none, Operand.none]),
Opcode.kLoadConstant: const Format(
Encoding.kAD, const [Operand.reg, Operand.lit, Operand.none]),
Opcode.kLoadClassId: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kLoadClassIdTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kPushConstant: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kStoreLocal: const Format(
Encoding.kX, const [Operand.xeg, Operand.none, Operand.none]),
Opcode.kPopLocal: const Format(
Encoding.kX, const [Operand.xeg, Operand.none, Operand.none]),
Opcode.kIndirectStaticCall: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kStaticCall: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kInstanceCall: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kInstanceCall1Opt: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kInstanceCall2Opt: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kPushPolymorphicInstanceCall: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kPushPolymorphicInstanceCallByRange: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kNativeCall: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kOneByteStringFromCharCode: const Format(
Encoding.kAX, const [Operand.reg, Operand.xeg, Operand.none]),
Opcode.kStringToCharCode: const Format(
Encoding.kAX, const [Operand.reg, Operand.xeg, Operand.none]),
Opcode.kAddTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kSubTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kMulTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kBitOrTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kBitAndTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kEqualTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kLessThanTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kGreaterThanTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kSmiAddTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kSmiSubTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kSmiMulTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kSmiBitAndTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kAdd: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kSub: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kMul: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDiv: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kMod: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kShl: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kShr: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kShlImm: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.imm]),
Opcode.kNeg: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kBitOr: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kBitAnd: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kBitXor: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kBitNot: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kMin: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kMax: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kWriteIntoDouble: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kUnboxDouble: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kCheckedUnboxDouble: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kUnboxInt32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.imm]),
Opcode.kBoxInt32: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kBoxUint32: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kSmiToDouble: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDoubleToSmi: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDAdd: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDSub: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDMul: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDDiv: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDNeg: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDSqrt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDMin: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDMax: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDCos: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDSin: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDPow: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDMod: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kDTruncate: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDFloor: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDCeil: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDoubleToFloat: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kFloatToDouble: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kDoubleIsNaN: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kDoubleIsInfinite: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kStoreStaticTOS: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kPushStatic: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kInitStaticTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfNeStrictTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfEqStrictTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfNeStrictNumTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfEqStrictNumTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfSmiLtTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfSmiLeTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfSmiGeTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfSmiGtTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kIfNeStrict: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfEqStrict: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfLe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfLt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfGe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfGt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfULe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfULt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfUGe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfUGt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfDNe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfDEq: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfDLe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfDLt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfDGe: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfDGt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfNeStrictNum: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfEqStrictNum: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kIfEqNull: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kIfNeNull: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kCreateArrayTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kCreateArrayOpt: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kAllocate: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kAllocateT: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kAllocateOpt: const Format(
Encoding.kAD, const [Operand.reg, Operand.lit, Operand.none]),
Opcode.kAllocateTOpt: const Format(
Encoding.kAD, const [Operand.reg, Operand.lit, Operand.none]),
Opcode.kStoreIndexedTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kStoreIndexed: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexedUint8: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexedExternalUint8: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexedOneByteString: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexedUint32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexedFloat32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexed4Float32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexedFloat64: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreIndexed8Float64: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kNoSuchMethod: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kTailCall: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kTailCallOpt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kLoadArgDescriptor: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kLoadArgDescriptorOpt: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kLoadFpRelativeSlot: const Format(
Encoding.kX, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kLoadFpRelativeSlotOpt: const Format(
Encoding.kABY, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreFpRelativeSlot: const Format(
Encoding.kX, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kStoreFpRelativeSlotOpt: const Format(
Encoding.kABY, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kLoadIndexed: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedUint8: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedInt8: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedInt32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedUint32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedExternalUint8: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedExternalInt8: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedFloat32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexed4Float32: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedFloat64: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexed8Float64: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedOneByteString: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kLoadIndexedTwoByteString: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.reg]),
Opcode.kStoreField: const Format(
Encoding.kABC, const [Operand.reg, Operand.imm, Operand.reg]),
Opcode.kStoreFieldExt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kStoreFieldTOS: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kStoreContextParent: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kStoreContextVar: const Format(
Encoding.kD, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kLoadField: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.imm]),
Opcode.kLoadFieldExt: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kLoadUntagged: const Format(
Encoding.kABC, const [Operand.reg, Operand.reg, Operand.imm]),
Opcode.kLoadFieldTOS: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kLoadTypeArgumentsField: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kLoadContextParent: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kLoadContextVar: const Format(
Encoding.kD, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kBooleanNegateTOS: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kBooleanNegate: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kThrow: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kEntry: const Format(
Encoding.kD, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kEntryOptimized: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kFrame: const Format(
Encoding.kD, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kSetFrame: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kAllocateContext: const Format(
Encoding.kD, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kAllocateUninitializedContext: const Format(
Encoding.kAD, const [Operand.reg, Operand.imm, Operand.none]),
Opcode.kCloneContext: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kMoveSpecial: const Format(
Encoding.kAD, const [Operand.reg, Operand.spe, Operand.none]),
Opcode.kInstantiateType: const Format(
Encoding.kD, const [Operand.lit, Operand.none, Operand.none]),
Opcode.kInstantiateTypeArgumentsTOS: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kInstanceOf: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kBadTypeError: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kAssertAssignable: const Format(
Encoding.kAD, const [Operand.imm, Operand.lit, Operand.none]),
Opcode.kAssertSubtype: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kAssertBoolean: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kTestSmi: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kTestCids: const Format(
Encoding.kAD, const [Operand.reg, Operand.imm, Operand.none]),
Opcode.kCheckSmi: const Format(
Encoding.kA, const [Operand.reg, Operand.none, Operand.none]),
Opcode.kCheckEitherNonSmi: const Format(
Encoding.kAD, const [Operand.reg, Operand.reg, Operand.none]),
Opcode.kCheckClassId: const Format(
Encoding.kAD, const [Operand.reg, Operand.imm, Operand.none]),
Opcode.kCheckClassIdRange: const Format(
Encoding.kAD, const [Operand.reg, Operand.imm, Operand.none]),
Opcode.kCheckBitTest: const Format(
Encoding.kAD, const [Operand.reg, Operand.imm, Operand.none]),
Opcode.kCheckCids: const Format(
Encoding.kABC, const [Operand.reg, Operand.imm, Operand.imm]),
Opcode.kCheckCidsByRange: const Format(
Encoding.kABC, const [Operand.reg, Operand.imm, Operand.imm]),
Opcode.kCheckStack: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kCheckStackAlwaysExit: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kCheckFunctionTypeArgs: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kDebugStep: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kDebugBreak: const Format(
Encoding.kA, const [Operand.imm, Operand.none, Operand.none]),
Opcode.kDeopt: const Format(
Encoding.kAD, const [Operand.imm, Operand.imm, Operand.none]),
Opcode.kDeoptRewind: const Format(
Encoding.k0, const [Operand.none, Operand.none, Operand.none]),
Opcode.kEntryOptional: const Format(
Encoding.kABC, const [Operand.imm, Operand.imm, Operand.imm]),
};
// Should match constant in runtime/vm/stack_frame_dbc.h.
const int kParamEndSlotFromFp = 4;
enum SpecialIndex {
exception,
stackTrace,
}
bool isJump(Opcode opcode) => BytecodeFormats[opcode].encoding == Encoding.kT;
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