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sdk/pkg/vm/testcases/bytecode/instance_creation.dart.expect
T
Alexander Markov 9f49b47823 [vm/bytecode] Revise representation of objects and strings in bytecode 
This is a major revamp of bytecode metadata format. Now bytecode has
its own serialization mechanisms.

This CL adds 'bytecode component' metadata, which contains bytecode
object table and string table. All references from bytecode (constant
pools) to libraries, classes, members, types and strings now have a new
format. References to frequently used objects are represented as indices
in object table, while rarely used objects are written inline.
This allows VM to cache frequently used objects while reading bytecode.

Representation of strings is aligned with VM - string characters are
stored in separate pools of one-byte and two-byte strings. This allows
VM to avoid UTF-8 decoding and extra copying.

Closure declarations are now explicit. Type parameters no longer require
enslosing scopes when reading/writing them.

Benchmarks:
GenKernelKernelReadAllBytecode (Intel Core i5) +29.84%
GenKernelKernelReadAllBytecode (Intel Xeon) +28.74%
Change-Id: I4b80009733a8f8c038264af74f97c4e094b9e311
Reviewed-on: https://dart-review.googlesource.com/c/85469
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
2018-12-03 19:08:42 +00:00

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library #lib;
import self as self;
import "dart:core" as core;
import "dart:_internal" as _in;
class Base<T1 extends core::Object = dynamic, T2 extends core::Object = dynamic> extends core::Object {
generic-covariant-impl field self::Base::T1 t1 = null;
generic-covariant-impl field self::Base::T2 t2 = null;
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
PushInt 4
CreateArrayTOS
StoreLocal r0
Push r0
PushInt 0
PushConstant CP#2
StoreIndexedTOS
Push r0
PushInt 1
Push FP[-5]
LoadTypeArgumentsField CP#4
PushNull
InstantiateType CP#3
StoreIndexedTOS
Push r0
PushInt 2
PushConstant CP#5
StoreIndexedTOS
Push r0
PushInt 3
Push FP[-5]
LoadTypeArgumentsField CP#4
PushNull
InstantiateType CP#6
StoreIndexedTOS
PushConstant CP#7
IndirectStaticCall 1, CP#0
PushConstant CP#8
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
Nullable fields: [#lib::Base::t1 (field), #lib::Base::t2 (field)]}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target 'dart:core::Object::'' (constructor)', arg-desc CP#0
[2] = String 'Base: '
[3] = Type #lib::Base::TypeParam/0
[4] = TypeArgumentsField #lib::Base
[5] = String ', '
[6] = Type #lib::Base::TypeParam/1
[7] = StaticICData target 'dart:core::_StringBase::_interpolate', arg-desc CP#0
[8] = StaticICData target 'dart:core::print', arg-desc CP#0
}
] constructor •() → self::Base<self::Base::T1, self::Base::T2>
: super core::Object::•() {
core::print("Base: ${self::Base::T1}, ${self::Base::T2}");
}
}
class A extends self::Base<core::int, core::String> {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-6]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target '#lib::Base::'' (constructor)', arg-desc CP#0
}
] constructor •(core::String s) → self::A
: super self::Base::•()
;
}
class B<T extends core::Object = dynamic> extends self::Base<core::List<self::B::T>, core::String> {
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
PushInt 2
CreateArrayTOS
StoreLocal r0
Push r0
PushInt 0
PushConstant CP#2
StoreIndexedTOS
Push r0
PushInt 1
Push FP[-5]
LoadTypeArgumentsField CP#4
PushNull
InstantiateType CP#3
StoreIndexedTOS
PushConstant CP#5
IndirectStaticCall 1, CP#0
PushConstant CP#6
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target '#lib::Base::'' (constructor)', arg-desc CP#0
[2] = String 'B: '
[3] = Type #lib::B::TypeParam/0
[4] = TypeArgumentsField #lib::B
[5] = StaticICData target 'dart:core::_StringBase::_interpolate', arg-desc CP#0
[6] = StaticICData target 'dart:core::print', arg-desc CP#0
}
] constructor •() → self::B<self::B::T>
: super self::Base::•() {
core::print("B: ${self::B::T}");
}
}
class C extends core::Object {
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
Push FP[-6]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
PushInt 2
CreateArrayTOS
StoreLocal r0
Push r0
PushInt 0
PushConstant CP#2
StoreIndexedTOS
Push r0
PushInt 1
Push FP[-5]
StoreIndexedTOS
PushConstant CP#3
IndirectStaticCall 1, CP#0
PushConstant CP#4
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target 'dart:core::Object::'' (constructor)', arg-desc CP#0
[2] = String 'C: '
[3] = StaticICData target 'dart:core::_StringBase::_interpolate', arg-desc CP#0
[4] = StaticICData target 'dart:core::print', arg-desc CP#0
}
] constructor •(core::String s) → self::C
: super core::Object::•() {
core::print("C: ${s}");
}
}
class E<K extends core::Object = dynamic, V extends core::Object = dynamic> extends core::Object {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target 'dart:core::Object::'' (constructor)', arg-desc CP#0
}
] synthetic constructor •() → self::E<self::E::K, self::E::V>
: super core::Object::•()
;
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
LoadTypeArgumentsField CP#0
PushConstant CP#2
IndirectStaticCall 1, CP#1
ReturnTOS
}
ConstantPool {
[0] = TypeArgumentsField #lib::E
[1] = ArgDesc num-args 1, num-type-args 0, names []
[2] = StaticICData target 'dart:core::Map::'' (constructor)', arg-desc CP#1
}
] method test_reuse1() → dynamic
return core::Map::•<self::E::K, self::E::V>();
}
class F<K extends core::Object = dynamic, V extends core::Object = dynamic> extends self::E<core::String, core::List<self::F::V>> {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target '#lib::E::'' (constructor)', arg-desc CP#0
}
] synthetic constructor •() → self::F<self::F::K, self::F::V>
: super self::E::•()
;
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
LoadTypeArgumentsField CP#0
PushConstant CP#2
IndirectStaticCall 1, CP#1
ReturnTOS
}
ConstantPool {
[0] = TypeArgumentsField #lib::F
[1] = ArgDesc num-args 1, num-type-args 0, names []
[2] = StaticICData target 'dart:core::Map::'' (constructor)', arg-desc CP#1
}
] method test_reuse2() → dynamic
return core::Map::•<core::String, core::List<self::F::V>>();
}
class G<K extends core::Object = dynamic, V extends core::Object = dynamic> extends core::Object {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target 'dart:core::Object::'' (constructor)', arg-desc CP#0
}
] constructor •() → self::G<self::G::K, self::G::V>
: super core::Object::•()
;
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
Push FP[-5]
PushNull
InstantiateTypeArgumentsTOS 0, CP#1
PushConstant CP#0
AllocateT
StoreLocal r0
Push r0
PushConstant CP#3
IndirectStaticCall 1, CP#2
Drop1
ReturnTOS
}
ConstantPool {
[0] = Class #lib::H
[1] = TypeArgumentsForInstanceAllocation #lib::H [dart:core::String, #lib::G::test_factory (constructor)::TypeParam/0, #lib::G::test_factory (constructor)::TypeParam/1]
[2] = ArgDesc num-args 1, num-type-args 0, names []
[3] = StaticICData target '#lib::H::'' (constructor)', arg-desc CP#2
}
] static factory test_factory<K extends core::Object = dynamic, V extends core::Object = dynamic>() → self::G<self::G::test_factory::K, self::G::test_factory::V>
return new self::H::•<core::String, self::G::test_factory::K, self::G::test_factory::V>();
}
class H<P1 extends core::Object = dynamic, P2 extends core::Object = dynamic, P3 extends core::Object = dynamic> extends self::G<self::H::P2, self::H::P3> {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target '#lib::G::'' (constructor)', arg-desc CP#0
}
] synthetic constructor •() → self::H<self::H::P1, self::H::P2, self::H::P3>
: super self::G::•()
;
}
class I extends core::Object {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-6]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target 'dart:core::Object::'' (constructor)', arg-desc CP#0
}
] constructor •(dynamic param) → self::I
: super core::Object::•()
;
[@vm.bytecode=
Bytecode {
EntryOptional 1, 0, 1
LoadConstant r1, CP#0
LoadConstant r1, CP#1
Frame 1
CheckStack 0
Allocate CP#2
StoreLocal r2
Push r2
Push r1
PushConstant CP#4
IndirectStaticCall 2, CP#3
Drop1
ReturnTOS
}
ConstantPool {
[0] = String 'param'
[1] = Null
[2] = Class #lib::I
[3] = ArgDesc num-args 2, num-type-args 0, names []
[4] = StaticICData target '#lib::I::'' (constructor)', arg-desc CP#3
}
] static factory test_factory2({dynamic param = null}) → self::I
return new self::I::•(param);
}
class J extends core::Object {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
NativeCall CP#0
ReturnTOS
}
ConstantPool {
[0] = NativeEntry agent_J
}
] @_in::ExternalName::•("agent_J")
external static factory •() → self::J;
}
abstract class K<A extends core::Object = dynamic, B extends core::Object = dynamic> extends core::Object {
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
Push FP[-5]
PushConstant CP#0
AllocateT
StoreLocal r0
Push r0
PushConstant CP#2
IndirectStaticCall 1, CP#1
Drop1
ReturnTOS
}
ConstantPool {
[0] = Class #lib::TestTypeArgReuse
[1] = ArgDesc num-args 1, num-type-args 0, names []
[2] = StaticICData target '#lib::TestTypeArgReuse::'' (constructor)', arg-desc CP#1
}
] static factory •<A extends core::Object = dynamic, B extends core::Object = dynamic>() → self::K<self::K::•::A, self::K::•::B>
return new self::TestTypeArgReuse::•<self::K::•::A, self::K::•::B>();
}
class TestTypeArgReuse<P extends core::Object = dynamic, Q extends core::Object = dynamic> extends self::Base<self::TestTypeArgReuse::P, self::TestTypeArgReuse::Q> implements self::K<self::TestTypeArgReuse::P, self::TestTypeArgReuse::Q> {
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
Push FP[-5]
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target '#lib::Base::'' (constructor)', arg-desc CP#0
}
] synthetic constructor •() → self::TestTypeArgReuse<self::TestTypeArgReuse::P, self::TestTypeArgReuse::Q>
: super self::Base::•()
;
}
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
Allocate CP#0
StoreLocal r0
Push r0
PushConstant CP#1
PushConstant CP#3
IndirectStaticCall 2, CP#2
Drop1
ReturnTOS
}
ConstantPool {
[0] = Class #lib::C
[1] = String 'hello'
[2] = ArgDesc num-args 2, num-type-args 0, names []
[3] = StaticICData target '#lib::C::'' (constructor)', arg-desc CP#2
}
]static method foo1() → dynamic
return new self::C::•("hello");
[@vm.bytecode=
Bytecode {
Entry 1
CheckStack 0
PushConstant CP#1
PushConstant CP#0
AllocateT
StoreLocal r0
Push r0
PushConstant CP#2
PushConstant CP#4
IndirectStaticCall 2, CP#3
Drop1
Drop1
PushConstant CP#6
PushConstant CP#5
AllocateT
StoreLocal r0
Push r0
PushConstant CP#8
IndirectStaticCall 1, CP#7
Drop1
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = Class #lib::A
[1] = TypeArgumentsForInstanceAllocation #lib::A []
[2] = String 'hi'
[3] = ArgDesc num-args 2, num-type-args 0, names []
[4] = StaticICData target '#lib::A::'' (constructor)', arg-desc CP#3
[5] = Class #lib::B
[6] = TypeArgumentsForInstanceAllocation #lib::B [dart:core::int]
[7] = ArgDesc num-args 1, num-type-args 0, names []
[8] = StaticICData target '#lib::B::'' (constructor)', arg-desc CP#7
}
]static method foo2() → void {
new self::A::•("hi");
new self::B::•<core::int>();
}
[@vm.bytecode=
Bytecode {
Entry 2
CheckStack 0
CheckFunctionTypeArgs 1, r0
PushNull
Push r0
InstantiateTypeArgumentsTOS 0, CP#1
PushConstant CP#0
AllocateT
StoreLocal r1
Push r1
PushConstant CP#3
IndirectStaticCall 1, CP#2
Drop1
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = Class #lib::B
[1] = TypeArgumentsForInstanceAllocation #lib::B [dart:core::List < #lib::foo3::TypeParam/0 >]
[2] = ArgDesc num-args 1, num-type-args 0, names []
[3] = StaticICData target '#lib::B::'' (constructor)', arg-desc CP#2
}
]static method foo3<T extends core::Object = dynamic>() → void {
new self::B::•<core::List<self::foo3::T>>();
}
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
PushConstant CP#0
PushConstant CP#2
IndirectStaticCall 1, CP#1
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = TypeArgumentsForInstanceAllocation #lib::G [dart:core::int, dart:core::List < dart:core::String >]
[1] = ArgDesc num-args 1, num-type-args 0, names []
[2] = StaticICData target '#lib::G::test_factory (constructor)', arg-desc CP#1
}
]static method foo4() → void {
self::G::test_factory<core::int, core::List<core::String>>();
}
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
PushNull
PushConstant CP#1
IndirectStaticCall 1, CP#0
Drop1
PushNull
PushInt 42
PushConstant CP#3
IndirectStaticCall 2, CP#2
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 1, num-type-args 0, names []
[1] = StaticICData target '#lib::I::test_factory2 (constructor)', arg-desc CP#0
[2] = ArgDesc num-args 2, num-type-args 0, names [param]
[3] = StaticICData target '#lib::I::test_factory2 (constructor)', arg-desc CP#2
}
]static method foo5() → void {
self::I::test_factory2();
self::I::test_factory2(param: 42);
}
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
PushConstant CP#0
PushInt 0
PushConstant CP#2
IndirectStaticCall 2, CP#1
ReturnTOS
}
ConstantPool {
[0] = TypeArgumentsForInstanceAllocation dart:core::_GrowableList [dart:core::String]
[1] = ArgDesc num-args 2, num-type-args 0, names []
[2] = StaticICData target 'dart:core::_GrowableList::'' (constructor)', arg-desc CP#1
}
]static method foo6() → dynamic
return core::_GrowableList::•<core::String>(0);
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
PushConstant CP#0
Push FP[-5]
PushConstant CP#2
IndirectStaticCall 2, CP#1
ReturnTOS
}
ConstantPool {
[0] = TypeArgumentsForInstanceAllocation dart:core::_List [dart:core::int]
[1] = ArgDesc num-args 2, num-type-args 0, names []
[2] = StaticICData target 'dart:core::_List::'' (constructor)', arg-desc CP#1
}
]static method foo7(core::int n) → dynamic
return core::_List::•<core::int>(n);
[@vm.bytecode=
Bytecode {
Entry 0
CheckStack 0
PushConstant CP#1
IndirectStaticCall 0, CP#0
Drop1
PushConstant CP#2
IndirectStaticCall 0, CP#0
Drop1
PushConstant CP#3
PushConstant CP#5
IndirectStaticCall 1, CP#4
Drop1
PushNull
ReturnTOS
}
ConstantPool {
[0] = ArgDesc num-args 0, num-type-args 0, names []
[1] = StaticICData target '#lib::foo1', arg-desc CP#0
[2] = StaticICData target '#lib::foo2', arg-desc CP#0
[3] = TypeArgs [dart:core::String]
[4] = ArgDesc num-args 0, num-type-args 1, names []
[5] = StaticICData target '#lib::foo3', arg-desc CP#4
}
]static method main() → dynamic {
self::foo1();
self::foo2();
self::foo3<core::String>();
}
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