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}
291 lines
6.4 KiB
Plaintext
291 lines
6.4 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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var a = 1; return ++a;
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"
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frame size: 1
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parameter count: 1
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bytecode array length: 10
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(LdaSmi), I8(1),
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B(Star), R(0),
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/* 45 S> */ B(Inc), U8(0),
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B(Star), R(0),
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/* 56 S> */ B(Return),
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]
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constant pool: [
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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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var a = 1; return a++;
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"
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frame size: 2
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parameter count: 1
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bytecode array length: 16
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(LdaSmi), I8(1),
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B(Star), R(0),
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/* 45 S> */ B(ToNumeric), U8(0),
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B(Star), R(1),
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B(Inc), U8(0),
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B(Star), R(0),
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B(Ldar), R(1),
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/* 56 S> */ B(Return),
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]
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constant pool: [
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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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var a = 1; return --a;
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"
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frame size: 1
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parameter count: 1
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bytecode array length: 10
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(LdaSmi), I8(1),
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B(Star), R(0),
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/* 45 S> */ B(Dec), U8(0),
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B(Star), R(0),
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/* 56 S> */ B(Return),
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]
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constant pool: [
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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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var a = 1; return a--;
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"
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frame size: 2
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parameter count: 1
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bytecode array length: 16
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(LdaSmi), I8(1),
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B(Star), R(0),
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/* 45 S> */ B(ToNumeric), U8(0),
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B(Star), R(1),
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B(Dec), U8(0),
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B(Star), R(0),
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B(Ldar), R(1),
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/* 56 S> */ B(Return),
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]
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constant pool: [
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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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var a = { val: 1 }; return a.val++;
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"
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frame size: 4
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parameter count: 1
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bytecode array length: 26
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(CreateObjectLiteral), U8(0), U8(0), U8(41),
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B(Star), R(0),
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/* 54 S> */ B(LdaNamedProperty), R(0), U8(1), U8(1),
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B(ToNumeric), U8(3),
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B(Star), R(2),
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B(Inc), U8(3),
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B(Star), R(3),
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/* 66 E> */ B(StaNamedProperty), R(0), U8(1), U8(4),
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B(Ldar), R(2),
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/* 69 S> */ B(Return),
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]
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constant pool: [
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OBJECT_BOILERPLATE_DESCRIPTION_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["val"],
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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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var a = { val: 1 }; return --a.val;
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"
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frame size: 3
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parameter count: 1
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bytecode array length: 22
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(CreateObjectLiteral), U8(0), U8(0), U8(41),
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B(Star), R(0),
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/* 54 S> */ B(LdaNamedProperty), R(0), U8(1), U8(1),
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B(Dec), U8(3),
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B(Star), R(2),
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/* 65 E> */ B(StaNamedProperty), R(0), U8(1), U8(4),
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B(Ldar), R(2),
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/* 69 S> */ B(Return),
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]
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constant pool: [
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OBJECT_BOILERPLATE_DESCRIPTION_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["val"],
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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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var name = 'var'; var a = { val: 1 }; return a[name]--;
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"
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frame size: 6
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parameter count: 1
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bytecode array length: 31
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 45 S> */ B(LdaConstant), U8(0),
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B(Star), R(0),
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/* 60 S> */ B(CreateObjectLiteral), U8(1), U8(0), U8(41),
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B(Star), R(1),
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/* 72 S> */ B(Ldar), R(0),
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/* 81 E> */ B(LdaKeyedProperty), R(1), U8(1),
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B(ToNumeric), U8(3),
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B(Star), R(4),
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B(Dec), U8(3),
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B(Star), R(5),
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/* 86 E> */ B(StaKeyedProperty), R(1), R(0), U8(4),
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B(Ldar), R(4),
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/* 89 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["var"],
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OBJECT_BOILERPLATE_DESCRIPTION_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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var name = 'var'; var a = { val: 1 }; return ++a[name];
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"
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frame size: 5
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parameter count: 1
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bytecode array length: 27
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 45 S> */ B(LdaConstant), U8(0),
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B(Star), R(0),
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/* 60 S> */ B(CreateObjectLiteral), U8(1), U8(0), U8(41),
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B(Star), R(1),
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/* 72 S> */ B(Ldar), R(0),
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/* 83 E> */ B(LdaKeyedProperty), R(1), U8(1),
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B(Inc), U8(3),
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B(Star), R(4),
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/* 87 E> */ B(StaKeyedProperty), R(1), R(0), U8(4),
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B(Ldar), R(4),
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/* 89 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["var"],
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OBJECT_BOILERPLATE_DESCRIPTION_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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var a = 1; var b = function() { return a }; return ++a;
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"
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frame size: 2
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parameter count: 1
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bytecode array length: 23
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bytecodes: [
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B(CreateFunctionContext), U8(0), U8(1),
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B(PushContext), R(1),
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(LdaSmi), I8(1),
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/* 42 E> */ B(StaCurrentContextSlot), U8(2),
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/* 53 S> */ B(CreateClosure), U8(1), U8(0), U8(2),
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B(Star), R(0),
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/* 78 S> */ B(LdaCurrentContextSlot), U8(2),
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B(Inc), U8(0),
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/* 87 E> */ B(StaCurrentContextSlot), U8(2),
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/* 89 S> */ B(Return),
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]
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constant pool: [
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SCOPE_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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var a = 1; var b = function() { return a }; return a--;
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"
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frame size: 3
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parameter count: 1
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bytecode array length: 29
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bytecodes: [
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B(CreateFunctionContext), U8(0), U8(1),
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B(PushContext), R(1),
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/* 30 E> */ B(StackCheck),
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/* 42 S> */ B(LdaSmi), I8(1),
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/* 42 E> */ B(StaCurrentContextSlot), U8(2),
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/* 53 S> */ B(CreateClosure), U8(1), U8(0), U8(2),
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B(Star), R(0),
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/* 78 S> */ B(LdaCurrentContextSlot), U8(2),
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B(ToNumeric), U8(0),
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B(Star), R(2),
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B(Dec), U8(0),
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/* 86 E> */ B(StaCurrentContextSlot), U8(2),
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B(Ldar), R(2),
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/* 89 S> */ B(Return),
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]
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constant pool: [
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SCOPE_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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var idx = 1; var a = [1, 2]; return a[idx++] = 2;
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"
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frame size: 5
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parameter count: 1
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bytecode array length: 32
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 44 S> */ B(LdaSmi), I8(1),
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B(Star), R(0),
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/* 55 S> */ B(CreateArrayLiteral), U8(0), U8(0), U8(37),
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B(Star), R(1),
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/* 63 S> */ B(Ldar), R(0),
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B(ToNumeric), U8(1),
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B(Star), R(3),
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B(Inc), U8(1),
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B(Star), R(0),
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B(LdaSmi), I8(2),
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B(Star), R(4),
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/* 79 E> */ B(StaKeyedProperty), R(1), R(3), U8(2),
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B(Ldar), R(4),
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/* 83 S> */ B(Return),
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]
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constant pool: [
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ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
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]
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handlers: [
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]
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