ac8acab28f
This is the first in a series of changes to reduce the number of bytecodes generated for the iteration protocol based operations. The GetIterator bytecode introduced in this change currently loads the @@iterator symbol from an object that was previously done using the LdaNamedProperty bytecode. This change uses builtin-based mechanism that would be extended to perform additional operations in the future on absorbing the bytecodes associated with the GetIterator operation from the iteration protocol. Bug: v8:9489 Change-Id: I83b8b55c27bae8260bf227f355eeca1ba80cd8f0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1701852 Commit-Queue: Swapnil Gaikwad <swapnilgaikwad@google.com> Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#63139}
124 lines
3.6 KiB
Plaintext
124 lines
3.6 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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Math.max(...[1, 2, 3]);
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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: 25
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 34 S> */ B(LdaGlobal), U8(0), U8(0),
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B(Star), R(1),
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/* 39 E> */ B(LdaNamedProperty), R(1), U8(1), U8(2),
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B(Star), R(0),
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B(CreateArrayLiteral), U8(2), U8(4), U8(37),
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B(Star), R(2),
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/* 39 E> */ B(CallWithSpread), R(0), R(1), U8(2), U8(5),
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B(LdaUndefined),
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/* 58 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["Math"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["max"],
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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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---
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snippet: "
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Math.max(0, ...[1, 2, 3]);
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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: 28
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 34 S> */ B(LdaGlobal), U8(0), U8(0),
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B(Star), R(1),
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/* 39 E> */ B(LdaNamedProperty), R(1), U8(1), U8(2),
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B(Star), R(0),
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B(LdaZero),
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B(Star), R(2),
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B(CreateArrayLiteral), U8(2), U8(4), U8(37),
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B(Star), R(3),
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/* 39 E> */ B(CallWithSpread), R(0), R(1), U8(3), U8(5),
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B(LdaUndefined),
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/* 61 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["Math"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["max"],
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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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---
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snippet: "
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Math.max(0, ...[1, 2, 3], 4);
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"
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frame size: 10
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parameter count: 1
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bytecode array length: 106
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bytecodes: [
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/* 30 E> */ B(StackCheck),
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/* 34 S> */ B(LdaGlobal), U8(0), U8(0),
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B(Star), R(0),
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B(LdaNamedProperty), R(0), U8(1), U8(2),
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B(Star), R(1),
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B(CreateArrayLiteral), U8(2), U8(4), U8(37),
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B(Star), R(4),
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B(LdaConstant), U8(3),
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B(Star), R(3),
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/* 49 S> */ B(CreateArrayLiteral), U8(4), U8(5), U8(37),
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B(Star), R(7),
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B(GetIterator), R(7), U8(6),
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B(Star), R(8),
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B(CallProperty0), R(8), R(7), U8(8),
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B(Mov), R(0), R(2),
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B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
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B(Star), R(6),
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B(LdaNamedProperty), R(6), U8(5), U8(10),
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B(Star), R(5),
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B(CallProperty0), R(5), R(6), U8(19),
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B(Star), R(9),
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B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(9), U8(1),
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B(LdaNamedProperty), R(9), U8(6), U8(21),
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B(JumpIfToBooleanTrue), U8(19),
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B(LdaNamedProperty), R(9), U8(7), U8(12),
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B(StaInArrayLiteral), R(4), R(3), U8(17),
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B(Ldar), R(3),
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B(Inc), U8(16),
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B(Star), R(3),
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B(JumpLoop), U8(33), I8(0),
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B(LdaSmi), I8(4),
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B(StaInArrayLiteral), R(4), R(3), U8(17),
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B(Mov), R(4), R(3),
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B(CallJSRuntime), U8(%reflect_apply), R(1), U8(3),
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B(LdaUndefined),
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/* 64 S> */ B(Return),
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]
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constant pool: [
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["Math"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["max"],
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ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
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Smi [1],
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ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
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]
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handlers: [
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]
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