dbbdd0eca2
Original change's description: > [runtime] Remove extension slots from context objects > > Context objects have an extension slot, which contains further > additional data that depends on the type of the context. > > This CL removes the extension slot from contexts that don't need > them, hence reducing memory. > > The following contexts will still have an extension slot: native, > module, await, block and with contexts. See objects/contexts.h for > what the slot is used for. > The following contexts will not have an extension slot anymore (they > were not used before): script, catch and builtin contexts. > Eval and function contexts only have the extension slot if they > contain a sloppy eval. > > Bug: v8:9744 > Change-Id: I8ca56c22fa02437bbac392ea72174ebfca80e030 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863191 > Commit-Queue: Victor Gomes <victorgomes@google.com> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Auto-Submit: Victor Gomes <victorgomes@google.com> > Cr-Commit-Position: refs/heads/master@{#64372} TBR=verwaest@chromium.org,jgruber@chromium.org,ulan@chromium.org,leszeks@chromium.org,petermarshall@chromium.org Bug: v8:9744 Change-Id: I8700ed2fa62c89e86c39bb16ac3167f38ea8d63f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1873695 Commit-Queue: Victor Gomes <victorgomes@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#64477}
328 lines
10 KiB
Plaintext
328 lines
10 KiB
Plaintext
#
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# Autogenerated by generate-bytecode-expectations.
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#
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---
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wrap: yes
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---
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snippet: "
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{
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class A {
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a;
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['b'];
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static c;
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static ['d'];
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}
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class B {
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a = 1;
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['b'] = this.a;
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static c = 3;
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static ['d'] = this.c;
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}
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new A;
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new B;
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}
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"
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frame size: 9
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parameter count: 1
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bytecode array length: 185
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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B(CreateBlockContext), U8(0),
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B(PushContext), R(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(3),
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B(LdaTheHole),
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B(Star), R(6),
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B(CreateClosure), U8(2), U8(0), U8(2),
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B(Star), R(3),
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B(LdaConstant), U8(1),
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B(Star), R(4),
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/* 60 S> */ B(LdaConstant), U8(3),
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B(StaCurrentContextSlot), U8(2),
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B(Star), R(7),
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/* 92 S> */ B(LdaConstant), U8(4),
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B(Star), R(8),
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B(LdaConstant), U8(5),
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B(TestEqualStrict), R(8), U8(0),
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B(Mov), R(3), R(5),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
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B(Ldar), R(8),
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B(StaCurrentContextSlot), U8(3),
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B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(5),
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B(Star), R(4),
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B(CreateClosure), U8(6), U8(1), U8(2),
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B(Star), R(5),
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B(StaNamedProperty), R(3), U8(7), U8(1),
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B(CreateClosure), U8(8), U8(2), U8(2),
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B(Star), R(7),
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B(CallProperty0), R(7), R(3), U8(3),
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B(PopContext), R(2),
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B(Mov), R(3), R(0),
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/* 38 E> */ B(CreateBlockContext), U8(9),
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B(PushContext), R(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(3),
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B(LdaTheHole),
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B(Star), R(6),
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B(CreateClosure), U8(11), U8(3), U8(2),
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B(Star), R(3),
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B(LdaConstant), U8(10),
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B(Star), R(4),
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/* 131 S> */ B(LdaConstant), U8(3),
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B(StaCurrentContextSlot), U8(2),
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B(Star), R(7),
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/* 176 S> */ B(LdaConstant), U8(4),
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B(Star), R(8),
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B(LdaConstant), U8(5),
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B(TestEqualStrict), R(8), U8(0),
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B(Mov), R(3), R(5),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
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B(Ldar), R(8),
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B(StaCurrentContextSlot), U8(3),
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B(CallRuntime), U16(Runtime::kDefineClass), R(4), U8(5),
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B(Star), R(4),
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B(CreateClosure), U8(12), U8(4), U8(2),
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B(Star), R(5),
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B(StaNamedProperty), R(3), U8(7), U8(5),
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B(CreateClosure), U8(13), U8(5), U8(2),
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B(Star), R(7),
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B(CallProperty0), R(7), R(3), U8(7),
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B(PopContext), R(2),
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B(Mov), R(3), R(1),
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/* 197 S> */ B(Ldar), R(0),
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/* 197 E> */ B(Construct), R(0), R(0), U8(0), U8(9),
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/* 206 S> */ B(Ldar), R(1),
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/* 206 E> */ B(Construct), R(1), R(0), U8(0), U8(11),
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B(LdaUndefined),
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/* 215 S> */ B(Return),
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]
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constant pool: [
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["b"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["d"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["prototype"],
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SHARED_FUNCTION_INFO_TYPE,
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SYMBOL_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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]
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handlers: [
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]
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---
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snippet: "
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{
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class A extends class {} {
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a;
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['b'];
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static c;
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static ['d'];
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}
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class B extends class {} {
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a = 1;
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['b'] = this.a;
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static c = 3;
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static ['d'] = this.c;
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foo() { return 1; }
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constructor() {
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super();
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}
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}
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class C extends B {
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a = 1;
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['b'] = this.a;
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static c = 3;
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static ['d'] = super.foo();
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constructor() {
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(() => super())();
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}
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}
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new A;
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new B;
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new C;
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}
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"
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frame size: 12
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parameter count: 1
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bytecode array length: 334
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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B(CreateBlockContext), U8(0),
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B(PushContext), R(3),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(3),
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B(LdaTheHole),
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B(Star), R(11),
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B(CreateClosure), U8(3), U8(0), U8(2),
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B(Star), R(8),
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B(LdaConstant), U8(2),
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B(Star), R(9),
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B(Mov), R(8), R(10),
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B(CallRuntime), U16(Runtime::kDefineClass), R(9), U8(3),
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B(Star), R(9),
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B(CreateClosure), U8(4), U8(1), U8(2),
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B(Star), R(4),
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B(LdaConstant), U8(1),
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B(Star), R(5),
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/* 77 S> */ B(LdaConstant), U8(5),
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B(StaCurrentContextSlot), U8(2),
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B(Star), R(8),
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/* 109 S> */ B(LdaConstant), U8(6),
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B(Star), R(9),
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B(LdaConstant), U8(7),
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B(TestEqualStrict), R(9), U8(0),
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B(Mov), R(10), R(7),
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B(Mov), R(4), R(6),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
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B(Ldar), R(9),
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B(StaCurrentContextSlot), U8(3),
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B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(5),
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B(Star), R(5),
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B(CreateClosure), U8(8), U8(2), U8(2),
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B(Star), R(6),
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B(StaNamedProperty), R(4), U8(9), U8(1),
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B(CreateClosure), U8(10), U8(3), U8(2),
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B(Star), R(8),
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B(CallProperty0), R(8), R(4), U8(3),
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B(PopContext), R(3),
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B(Mov), R(4), R(0),
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/* 38 E> */ B(CreateBlockContext), U8(11),
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B(PushContext), R(3),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(3),
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B(LdaTheHole),
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B(Star), R(11),
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B(CreateClosure), U8(14), U8(4), U8(2),
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B(Star), R(8),
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B(LdaConstant), U8(13),
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B(Star), R(9),
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B(Mov), R(8), R(10),
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B(CallRuntime), U16(Runtime::kDefineClass), R(9), U8(3),
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B(Star), R(9),
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B(CreateClosure), U8(15), U8(5), U8(2),
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B(Star), R(4),
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B(LdaConstant), U8(12),
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B(Star), R(5),
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/* 165 S> */ B(LdaConstant), U8(5),
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B(StaCurrentContextSlot), U8(2),
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B(Star), R(8),
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/* 210 S> */ B(LdaConstant), U8(6),
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B(Star), R(9),
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B(LdaConstant), U8(7),
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B(TestEqualStrict), R(9), U8(0),
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B(Mov), R(4), R(6),
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B(Mov), R(10), R(7),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
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B(Ldar), R(9),
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B(StaCurrentContextSlot), U8(3),
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B(CreateClosure), U8(16), U8(6), U8(2),
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B(Star), R(10),
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B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(6),
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B(Star), R(5),
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B(CreateClosure), U8(17), U8(7), U8(2),
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B(Star), R(6),
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B(StaNamedProperty), R(4), U8(9), U8(5),
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B(CreateClosure), U8(18), U8(8), U8(2),
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B(Star), R(8),
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B(CallProperty0), R(8), R(4), U8(7),
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B(PopContext), R(3),
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B(Mov), R(4), R(1),
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/* 122 E> */ B(CreateBlockContext), U8(19),
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B(PushContext), R(3),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(2),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(3),
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/* 313 E> */ B(CreateClosure), U8(21), U8(9), U8(2),
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B(Star), R(4),
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B(LdaConstant), U8(20),
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B(Star), R(5),
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/* 333 S> */ B(LdaConstant), U8(5),
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B(StaCurrentContextSlot), U8(2),
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B(Star), R(8),
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/* 378 S> */ B(LdaConstant), U8(6),
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B(Star), R(9),
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B(LdaConstant), U8(7),
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B(TestEqualStrict), R(9), U8(0),
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B(Mov), R(4), R(6),
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B(Mov), R(1), R(7),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowStaticPrototypeError), R(0), U8(0),
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B(Ldar), R(9),
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B(StaCurrentContextSlot), U8(3),
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B(CallRuntime), U16(Runtime::kDefineClass), R(5), U8(5),
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B(Star), R(5),
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B(CreateClosure), U8(22), U8(10), U8(2),
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B(Star), R(6),
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B(StaNamedProperty), R(4), U8(9), U8(9),
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B(CreateClosure), U8(23), U8(11), U8(2),
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B(Star), R(8),
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B(Ldar), R(4),
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B(StaNamedProperty), R(8), U8(24), U8(11),
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B(CallProperty0), R(8), R(4), U8(13),
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B(PopContext), R(3),
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B(Mov), R(4), R(2),
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/* 456 S> */ B(Ldar), R(0),
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/* 456 E> */ B(Construct), R(0), R(0), U8(0), U8(15),
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/* 465 S> */ B(Ldar), R(1),
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/* 465 E> */ B(Construct), R(1), R(0), U8(0), U8(17),
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/* 474 S> */ B(Ldar), R(2),
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/* 474 E> */ B(Construct), R(2), R(0), U8(0), U8(19),
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B(LdaUndefined),
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/* 483 S> */ B(Return),
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]
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constant pool: [
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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FIXED_ARRAY_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["b"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["d"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["prototype"],
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SHARED_FUNCTION_INFO_TYPE,
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SYMBOL_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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FIXED_ARRAY_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SCOPE_INFO_TYPE,
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FIXED_ARRAY_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SHARED_FUNCTION_INFO_TYPE,
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SYMBOL_TYPE,
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]
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handlers: [
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]
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