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}
109 lines
2.3 KiB
Plaintext
109 lines
2.3 KiB
Plaintext
#
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# Autogenerated by generate-bytecode-expectations.
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#
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---
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wrap: no
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test function name: f
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---
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snippet: "
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function f(arg1) { return function() { arg1 = 2; }; }
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f();
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"
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frame size: 1
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parameter count: 2
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bytecode array length: 15
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bytecodes: [
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B(CreateFunctionContext), U8(0), U8(1),
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B(PushContext), R(0),
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B(Ldar), R(arg0),
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B(StaCurrentContextSlot), U8(2),
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/* 10 E> */ B(StackCheck),
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/* 19 S> */ B(CreateClosure), U8(1), U8(0), U8(2),
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/* 51 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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function f(arg1) { var a = function() { arg1 = 2; }; return arg1; }
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f();
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"
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frame size: 2
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parameter count: 2
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bytecode array length: 19
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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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B(Ldar), R(arg0),
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B(StaCurrentContextSlot), U8(2),
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/* 10 E> */ B(StackCheck),
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/* 27 S> */ B(CreateClosure), U8(1), U8(0), U8(2),
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B(Star), R(0),
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/* 53 S> */ B(LdaCurrentContextSlot), U8(2),
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/* 65 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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function f(a1, a2, a3, a4) { return function() { a1 = a3; }; }
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f();
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"
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frame size: 1
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parameter count: 5
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bytecode array length: 19
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bytecodes: [
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B(CreateFunctionContext), U8(0), U8(2),
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B(PushContext), R(0),
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B(Ldar), R(arg0),
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B(StaCurrentContextSlot), U8(3),
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B(Ldar), R(arg2),
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B(StaCurrentContextSlot), U8(2),
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/* 10 E> */ B(StackCheck),
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/* 29 S> */ B(CreateClosure), U8(1), U8(0), U8(2),
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/* 60 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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function f() { var self = this; return function() { self = 2; }; }
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f();
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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: 15
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bytecodes: [
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B(CreateFunctionContext), U8(0), U8(1),
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B(PushContext), R(0),
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/* 10 E> */ B(StackCheck),
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/* 26 S> */ B(Ldar), R(this),
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/* 26 E> */ B(StaCurrentContextSlot), U8(2),
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/* 32 S> */ B(CreateClosure), U8(1), U8(0), U8(2),
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/* 64 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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