cebfde6769
The function-entry stack check should dominate all other
instructions in a function. Prior to this CL it was possible to create
paths not including a stack check due to SwitchOnGeneratorState: the
generator-creation branch had a stack check, while generator-resume
branches did not.
0 : af fb 00 01 SwitchOnGeneratorState r0, [0], [1] { 0: @22 }
4 : 27 fe fa Mov <closure>, r1
7 : 27 02 f9 Mov <this>, r2
10 : 64 0a fa 02 InvokeIntrinsic [_CreateJSGeneratorObject], r1-r2
14 : 26 fb Star r0
16 : a7 StackCheck
17 : b0 fb fb 01 00 SuspendGenerator r0, r0-r0, [0]
22 : b1 fb fb 01 ResumeGenerator r0, r0-r0
[... no stack check here ...]
This CL moves the stack check to the beginning of the bytecode array,
i.e. before SwitchOnGeneratorState.
Bug: chromium:1020031
Change-Id: I8ba8cba99611ddbe50c76023129d926cc84b1d5e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1903440
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64888}
664 lines
24 KiB
Plaintext
664 lines
24 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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async iteration: yes
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---
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snippet: "
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async function f() {
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for await (let x of [1, 2, 3]) {}
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}
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f();
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"
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frame size: 19
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parameter count: 1
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bytecode array length: 321
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bytecodes: [
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/* 16 E> */ B(StackCheck),
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B(SwitchOnGeneratorState), R(0), U8(0), U8(2),
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B(Mov), R(closure), R(4),
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|
B(Mov), R(this), R(5),
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|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionEnter), R(4), U8(2),
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|
B(Star), R(0),
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|
B(Mov), R(context), R(4),
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|
/* 43 S> */ B(CreateArrayLiteral), U8(2), U8(0), U8(37),
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B(Star), R(7),
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|
B(LdaNamedProperty), R(7), U8(3), U8(1),
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|
B(JumpIfUndefinedOrNull), U8(15),
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|
B(Star), R(8),
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|
B(CallProperty0), R(8), R(7), U8(3),
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|
B(JumpIfJSReceiver), U8(23),
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|
B(CallRuntime), U16(Runtime::kThrowSymbolAsyncIteratorInvalid), R(0), U8(0),
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|
B(LdaNamedProperty), R(7), U8(4), U8(5),
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|
B(Star), R(8),
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|
B(CallProperty0), R(8), R(7), U8(7),
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|
B(Star), R(8),
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|
B(InvokeIntrinsic), U8(Runtime::k_CreateAsyncFromSyncIterator), R(8), U8(1),
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|
B(Star), R(6),
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|
B(LdaNamedProperty), R(6), U8(5), U8(9),
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|
B(Star), R(5),
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|
B(LdaFalse),
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|
B(Star), R(7),
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|
B(Mov), R(context), R(10),
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B(LdaTrue),
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|
B(Star), R(7),
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|
/* 38 S> */ B(CallProperty0), R(5), R(6), U8(11),
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B(Star), R(13),
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|
B(Mov), R(0), R(12),
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|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(12), U8(2),
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B(SuspendGenerator), R(0), R(0), U8(12), U8(0),
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B(ResumeGenerator), R(0), R(0), U8(12),
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|
B(Star), R(12),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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|
B(Star), R(13),
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|
B(LdaZero),
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|
B(TestReferenceEqual), R(13),
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|
B(JumpIfTrue), U8(5),
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|
B(Ldar), R(12),
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|
B(ReThrow),
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|
B(Ldar), R(12),
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|
B(Mov), R(12), R(11),
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|
B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
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B(LdaNamedProperty), R(11), U8(6), U8(13),
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B(JumpIfToBooleanTrue), U8(23),
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|
B(LdaNamedProperty), R(11), U8(7), U8(15),
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B(Star), R(11),
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B(LdaFalse),
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B(Star), R(7),
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B(Mov), R(11), R(1),
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/* 23 E> */ B(StackCheck),
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/* 38 S> */ B(Mov), R(1), R(3),
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B(Ldar), R(11),
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|
B(JumpLoop), U8(77), I8(0),
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B(LdaSmi), I8(-1),
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B(Star), R(9),
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|
B(Star), R(8),
|
|
B(Jump), U8(7),
|
|
B(Star), R(9),
|
|
B(LdaZero),
|
|
B(Star), R(8),
|
|
B(LdaTheHole),
|
|
/* 38 E> */ B(SetPendingMessage),
|
|
B(Star), R(10),
|
|
B(Ldar), R(7),
|
|
B(JumpIfToBooleanTrue), U8(94),
|
|
B(LdaNamedProperty), R(6), U8(8), U8(17),
|
|
B(Star), R(14),
|
|
B(JumpIfUndefinedOrNull), U8(86),
|
|
B(Mov), R(context), R(15),
|
|
B(TestTypeOf), U8(6),
|
|
B(JumpIfTrue), U8(18),
|
|
B(Wide), B(LdaSmi), I16(159),
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B(Star), R(16),
|
|
B(LdaConstant), U8(9),
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B(Star), R(17),
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B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
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B(Throw),
|
|
B(CallProperty0), R(14), R(6), U8(19),
|
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B(Star), R(17),
|
|
B(Mov), R(0), R(16),
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B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(16), U8(2),
|
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B(SuspendGenerator), R(0), R(0), U8(16), U8(1),
|
|
B(ResumeGenerator), R(0), R(0), U8(16),
|
|
B(Star), R(16),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
|
|
B(Star), R(17),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(17),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(16),
|
|
B(ReThrow),
|
|
B(Ldar), R(16),
|
|
B(JumpIfJSReceiver), U8(21),
|
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B(Star), R(18),
|
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(18), U8(1),
|
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B(Jump), U8(12),
|
|
B(Star), R(15),
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B(LdaZero),
|
|
B(TestReferenceEqual), R(8),
|
|
B(JumpIfTrue), U8(5),
|
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B(Ldar), R(15),
|
|
B(ReThrow),
|
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B(Ldar), R(10),
|
|
B(SetPendingMessage),
|
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B(LdaZero),
|
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B(TestReferenceEqual), R(8),
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B(JumpIfFalse), U8(5),
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B(Ldar), R(9),
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|
B(ReThrow),
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B(LdaUndefined),
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B(Star), R(6),
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B(LdaTrue),
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B(Star), R(7),
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B(Mov), R(0), R(5),
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B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(5), U8(3),
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/* 57 S> */ B(Return),
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B(Star), R(5),
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B(CreateCatchContext), R(5), U8(10),
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B(Star), R(4),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Ldar), R(4),
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B(PushContext), R(5),
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B(LdaImmutableCurrentContextSlot), U8(2),
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B(Star), R(7),
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B(LdaTrue),
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B(Star), R(8),
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B(Mov), R(0), R(6),
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B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionReject), R(6), U8(3),
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/* 57 S> */ B(Return),
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]
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constant pool: [
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Smi [95],
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Smi [224],
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ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
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SYMBOL_TYPE,
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|
SYMBOL_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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ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
SCOPE_INFO_TYPE,
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|
]
|
|
handlers: [
|
|
[20, 293, 293],
|
|
[75, 155, 163],
|
|
[187, 256, 258],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
async function f() {
|
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for await (let x of [1, 2, 3]) { return x; }
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|
}
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f();
|
|
"
|
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frame size: 19
|
|
parameter count: 1
|
|
bytecode array length: 342
|
|
bytecodes: [
|
|
/* 16 E> */ B(StackCheck),
|
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B(SwitchOnGeneratorState), R(0), U8(0), U8(2),
|
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B(Mov), R(closure), R(4),
|
|
B(Mov), R(this), R(5),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionEnter), R(4), U8(2),
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B(Star), R(0),
|
|
B(Mov), R(context), R(4),
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/* 43 S> */ B(CreateArrayLiteral), U8(2), U8(0), U8(37),
|
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B(Star), R(7),
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B(LdaNamedProperty), R(7), U8(3), U8(1),
|
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B(JumpIfUndefinedOrNull), U8(15),
|
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B(Star), R(8),
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B(CallProperty0), R(8), R(7), U8(3),
|
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B(JumpIfJSReceiver), U8(23),
|
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B(CallRuntime), U16(Runtime::kThrowSymbolAsyncIteratorInvalid), R(0), U8(0),
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B(LdaNamedProperty), R(7), U8(4), U8(5),
|
|
B(Star), R(8),
|
|
B(CallProperty0), R(8), R(7), U8(7),
|
|
B(Star), R(8),
|
|
B(InvokeIntrinsic), U8(Runtime::k_CreateAsyncFromSyncIterator), R(8), U8(1),
|
|
B(Star), R(6),
|
|
B(LdaNamedProperty), R(6), U8(5), U8(9),
|
|
B(Star), R(5),
|
|
B(LdaFalse),
|
|
B(Star), R(7),
|
|
B(Mov), R(context), R(10),
|
|
B(LdaTrue),
|
|
B(Star), R(7),
|
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/* 38 S> */ B(CallProperty0), R(5), R(6), U8(11),
|
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B(Star), R(13),
|
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B(Mov), R(0), R(12),
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B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(12), U8(2),
|
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B(SuspendGenerator), R(0), R(0), U8(12), U8(0),
|
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B(ResumeGenerator), R(0), R(0), U8(12),
|
|
B(Star), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
|
|
B(Star), R(13),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(13),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(12),
|
|
B(ReThrow),
|
|
B(Ldar), R(12),
|
|
B(Mov), R(12), R(11),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
|
|
B(LdaNamedProperty), R(11), U8(6), U8(13),
|
|
B(JumpIfToBooleanTrue), U8(27),
|
|
B(LdaNamedProperty), R(11), U8(7), U8(15),
|
|
B(Star), R(11),
|
|
B(LdaFalse),
|
|
B(Star), R(7),
|
|
B(Mov), R(11), R(1),
|
|
/* 23 E> */ B(StackCheck),
|
|
/* 38 S> */ B(Mov), R(1), R(3),
|
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/* 56 S> */ B(LdaSmi), I8(1),
|
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B(Mov), R(11), R(9),
|
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B(Star), R(8),
|
|
B(Jump), U8(15),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(9),
|
|
B(Star), R(8),
|
|
B(Jump), U8(7),
|
|
B(Star), R(9),
|
|
B(LdaZero),
|
|
B(Star), R(8),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(10),
|
|
B(Ldar), R(7),
|
|
B(JumpIfToBooleanTrue), U8(94),
|
|
B(LdaNamedProperty), R(6), U8(8), U8(17),
|
|
B(Star), R(14),
|
|
B(JumpIfUndefinedOrNull), U8(86),
|
|
B(Mov), R(context), R(15),
|
|
B(TestTypeOf), U8(6),
|
|
B(JumpIfTrue), U8(18),
|
|
B(Wide), B(LdaSmi), I16(159),
|
|
B(Star), R(16),
|
|
B(LdaConstant), U8(9),
|
|
B(Star), R(17),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
|
|
B(Throw),
|
|
B(CallProperty0), R(14), R(6), U8(19),
|
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B(Star), R(17),
|
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B(Mov), R(0), R(16),
|
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B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(16), U8(2),
|
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B(SuspendGenerator), R(0), R(0), U8(16), U8(1),
|
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B(ResumeGenerator), R(0), R(0), U8(16),
|
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B(Star), R(16),
|
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
|
|
B(Star), R(17),
|
|
B(LdaZero),
|
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B(TestReferenceEqual), R(17),
|
|
B(JumpIfTrue), U8(5),
|
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B(Ldar), R(16),
|
|
B(ReThrow),
|
|
B(Ldar), R(16),
|
|
B(JumpIfJSReceiver), U8(21),
|
|
B(Star), R(18),
|
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(18), U8(1),
|
|
B(Jump), U8(12),
|
|
B(Star), R(15),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(8),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(15),
|
|
B(ReThrow),
|
|
B(Ldar), R(10),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(8),
|
|
B(SwitchOnSmiNoFeedback), U8(10), U8(2), I8(0),
|
|
B(Jump), U8(19),
|
|
B(Ldar), R(9),
|
|
B(ReThrow),
|
|
B(LdaTrue),
|
|
B(Star), R(16),
|
|
B(Mov), R(0), R(14),
|
|
B(Mov), R(9), R(15),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(14), U8(3),
|
|
/* 68 S> */ B(Return),
|
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B(LdaUndefined),
|
|
B(Star), R(6),
|
|
B(LdaTrue),
|
|
B(Star), R(7),
|
|
B(Mov), R(0), R(5),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(5), U8(3),
|
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/* 68 S> */ B(Return),
|
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B(Star), R(5),
|
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B(CreateCatchContext), R(5), U8(12),
|
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B(Star), R(4),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(4),
|
|
B(PushContext), R(5),
|
|
B(LdaImmutableCurrentContextSlot), U8(2),
|
|
B(Star), R(7),
|
|
B(LdaTrue),
|
|
B(Star), R(8),
|
|
B(Mov), R(0), R(6),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionReject), R(6), U8(3),
|
|
/* 68 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
Smi [95],
|
|
Smi [228],
|
|
ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
|
|
SYMBOL_TYPE,
|
|
SYMBOL_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
Smi [6],
|
|
Smi [9],
|
|
SCOPE_INFO_TYPE,
|
|
]
|
|
handlers: [
|
|
[20, 314, 314],
|
|
[75, 159, 167],
|
|
[191, 260, 262],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
async function f() {
|
|
for await (let x of [10, 20, 30]) {
|
|
if (x == 10) continue;
|
|
if (x == 20) break;
|
|
}
|
|
}
|
|
f();
|
|
"
|
|
frame size: 19
|
|
parameter count: 1
|
|
bytecode array length: 337
|
|
bytecodes: [
|
|
/* 16 E> */ B(StackCheck),
|
|
B(SwitchOnGeneratorState), R(0), U8(0), U8(2),
|
|
B(Mov), R(closure), R(4),
|
|
B(Mov), R(this), R(5),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionEnter), R(4), U8(2),
|
|
B(Star), R(0),
|
|
B(Mov), R(context), R(4),
|
|
/* 43 S> */ B(CreateArrayLiteral), U8(2), U8(0), U8(37),
|
|
B(Star), R(7),
|
|
B(LdaNamedProperty), R(7), U8(3), U8(1),
|
|
B(JumpIfUndefinedOrNull), U8(15),
|
|
B(Star), R(8),
|
|
B(CallProperty0), R(8), R(7), U8(3),
|
|
B(JumpIfJSReceiver), U8(23),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolAsyncIteratorInvalid), R(0), U8(0),
|
|
B(LdaNamedProperty), R(7), U8(4), U8(5),
|
|
B(Star), R(8),
|
|
B(CallProperty0), R(8), R(7), U8(7),
|
|
B(Star), R(8),
|
|
B(InvokeIntrinsic), U8(Runtime::k_CreateAsyncFromSyncIterator), R(8), U8(1),
|
|
B(Star), R(6),
|
|
B(LdaNamedProperty), R(6), U8(5), U8(9),
|
|
B(Star), R(5),
|
|
B(LdaFalse),
|
|
B(Star), R(7),
|
|
B(Mov), R(context), R(10),
|
|
B(LdaTrue),
|
|
B(Star), R(7),
|
|
/* 38 S> */ B(CallProperty0), R(5), R(6), U8(11),
|
|
B(Star), R(13),
|
|
B(Mov), R(0), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(12), U8(2),
|
|
B(SuspendGenerator), R(0), R(0), U8(12), U8(0),
|
|
B(ResumeGenerator), R(0), R(0), U8(12),
|
|
B(Star), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
|
|
B(Star), R(13),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(13),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(12),
|
|
B(ReThrow),
|
|
B(Ldar), R(12),
|
|
B(Mov), R(12), R(11),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
|
|
B(LdaNamedProperty), R(11), U8(6), U8(13),
|
|
B(JumpIfToBooleanTrue), U8(39),
|
|
B(LdaNamedProperty), R(11), U8(7), U8(15),
|
|
B(Star), R(11),
|
|
B(LdaFalse),
|
|
B(Star), R(7),
|
|
B(Mov), R(11), R(1),
|
|
/* 23 E> */ B(StackCheck),
|
|
/* 38 S> */ B(Mov), R(1), R(3),
|
|
/* 63 S> */ B(LdaSmi), I8(10),
|
|
/* 69 E> */ B(TestEqual), R(3), U8(17),
|
|
B(JumpIfFalse), U8(4),
|
|
/* 76 S> */ B(Jump), U8(11),
|
|
/* 90 S> */ B(LdaSmi), I8(20),
|
|
/* 96 E> */ B(TestEqual), R(3), U8(18),
|
|
B(JumpIfFalse), U8(4),
|
|
/* 103 S> */ B(Jump), U8(5),
|
|
B(JumpLoop), U8(93), I8(0),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(9),
|
|
B(Star), R(8),
|
|
B(Jump), U8(7),
|
|
B(Star), R(9),
|
|
B(LdaZero),
|
|
B(Star), R(8),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(10),
|
|
B(Ldar), R(7),
|
|
B(JumpIfToBooleanTrue), U8(94),
|
|
B(LdaNamedProperty), R(6), U8(8), U8(19),
|
|
B(Star), R(14),
|
|
B(JumpIfUndefinedOrNull), U8(86),
|
|
B(Mov), R(context), R(15),
|
|
B(TestTypeOf), U8(6),
|
|
B(JumpIfTrue), U8(18),
|
|
B(Wide), B(LdaSmi), I16(159),
|
|
B(Star), R(16),
|
|
B(LdaConstant), U8(9),
|
|
B(Star), R(17),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
|
|
B(Throw),
|
|
B(CallProperty0), R(14), R(6), U8(21),
|
|
B(Star), R(17),
|
|
B(Mov), R(0), R(16),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(16), U8(2),
|
|
B(SuspendGenerator), R(0), R(0), U8(16), U8(1),
|
|
B(ResumeGenerator), R(0), R(0), U8(16),
|
|
B(Star), R(16),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
|
|
B(Star), R(17),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(17),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(16),
|
|
B(ReThrow),
|
|
B(Ldar), R(16),
|
|
B(JumpIfJSReceiver), U8(21),
|
|
B(Star), R(18),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(18), U8(1),
|
|
B(Jump), U8(12),
|
|
B(Star), R(15),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(8),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(15),
|
|
B(ReThrow),
|
|
B(Ldar), R(10),
|
|
B(SetPendingMessage),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(8),
|
|
B(JumpIfFalse), U8(5),
|
|
B(Ldar), R(9),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
B(Star), R(6),
|
|
B(LdaTrue),
|
|
B(Star), R(7),
|
|
B(Mov), R(0), R(5),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(5), U8(3),
|
|
/* 114 S> */ B(Return),
|
|
B(Star), R(5),
|
|
B(CreateCatchContext), R(5), U8(10),
|
|
B(Star), R(4),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(4),
|
|
B(PushContext), R(5),
|
|
B(LdaImmutableCurrentContextSlot), U8(2),
|
|
B(Star), R(7),
|
|
B(LdaTrue),
|
|
B(Star), R(8),
|
|
B(Mov), R(0), R(6),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionReject), R(6), U8(3),
|
|
/* 114 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
Smi [95],
|
|
Smi [240],
|
|
ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
|
|
SYMBOL_TYPE,
|
|
SYMBOL_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
SCOPE_INFO_TYPE,
|
|
]
|
|
handlers: [
|
|
[20, 309, 309],
|
|
[75, 171, 179],
|
|
[203, 272, 274],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
async function f() {
|
|
var x = { 'a': 1, 'b': 2 };
|
|
for (x['a'] of [1,2,3]) { return x['a']; }
|
|
}
|
|
f();
|
|
"
|
|
frame size: 15
|
|
parameter count: 1
|
|
bytecode array length: 246
|
|
bytecodes: [
|
|
/* 16 E> */ B(StackCheck),
|
|
B(Mov), R(closure), R(2),
|
|
B(Mov), R(this), R(3),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionEnter), R(2), U8(2),
|
|
B(Star), R(0),
|
|
B(Mov), R(context), R(2),
|
|
/* 31 S> */ B(CreateObjectLiteral), U8(0), U8(0), U8(41),
|
|
B(Star), R(1),
|
|
/* 68 S> */ B(CreateArrayLiteral), U8(1), U8(1), U8(37),
|
|
B(Star), R(5),
|
|
B(GetIterator), R(5), U8(2), U8(4),
|
|
B(Star), R(4),
|
|
B(LdaNamedProperty), R(4), U8(2), U8(6),
|
|
B(Star), R(3),
|
|
B(LdaFalse),
|
|
B(Star), R(5),
|
|
B(Mov), R(context), R(8),
|
|
B(LdaTrue),
|
|
B(Star), R(5),
|
|
/* 59 S> */ B(CallProperty0), R(3), R(4), U8(8),
|
|
B(Star), R(9),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(9), U8(1),
|
|
B(LdaNamedProperty), R(9), U8(3), U8(10),
|
|
B(JumpIfToBooleanTrue), U8(33),
|
|
B(LdaNamedProperty), R(9), U8(4), U8(12),
|
|
B(Star), R(9),
|
|
B(LdaFalse),
|
|
B(Star), R(5),
|
|
B(Ldar), R(9),
|
|
/* 58 E> */ B(StaNamedProperty), R(1), U8(5), U8(14),
|
|
/* 53 E> */ B(StackCheck),
|
|
/* 87 S> */ B(LdaNamedProperty), R(1), U8(5), U8(16),
|
|
B(Star), R(7),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(6),
|
|
B(Mov), R(1), R(10),
|
|
B(Jump), U8(15),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(7),
|
|
B(Star), R(6),
|
|
B(Jump), U8(7),
|
|
B(Star), R(7),
|
|
B(LdaZero),
|
|
B(Star), R(6),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(8),
|
|
B(Ldar), R(5),
|
|
B(JumpIfToBooleanTrue), U8(58),
|
|
B(LdaNamedProperty), R(4), U8(6), U8(18),
|
|
B(Star), R(11),
|
|
B(JumpIfUndefinedOrNull), U8(50),
|
|
B(Mov), R(context), R(12),
|
|
B(TestTypeOf), U8(6),
|
|
B(JumpIfTrue), U8(18),
|
|
B(Wide), B(LdaSmi), I16(159),
|
|
B(Star), R(13),
|
|
B(LdaConstant), U8(7),
|
|
B(Star), R(14),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(13), U8(2),
|
|
B(Throw),
|
|
B(CallProperty0), R(11), R(4), U8(20),
|
|
B(JumpIfJSReceiver), U8(21),
|
|
B(Star), R(13),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(13), U8(1),
|
|
B(Jump), U8(12),
|
|
B(Star), R(12),
|
|
B(LdaZero),
|
|
B(TestReferenceEqual), R(6),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(12),
|
|
B(ReThrow),
|
|
B(Ldar), R(8),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(6),
|
|
B(SwitchOnSmiNoFeedback), U8(8), U8(2), I8(0),
|
|
B(Jump), U8(19),
|
|
B(Ldar), R(7),
|
|
B(ReThrow),
|
|
B(LdaFalse),
|
|
B(Star), R(13),
|
|
B(Mov), R(0), R(11),
|
|
B(Mov), R(7), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(11), U8(3),
|
|
/* 96 S> */ B(Return),
|
|
B(LdaUndefined),
|
|
B(Star), R(4),
|
|
B(LdaFalse),
|
|
B(Star), R(5),
|
|
B(Mov), R(0), R(3),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(3), U8(3),
|
|
/* 96 S> */ B(Return),
|
|
B(Star), R(3),
|
|
B(CreateCatchContext), R(3), U8(10),
|
|
B(Star), R(2),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(2),
|
|
B(PushContext), R(3),
|
|
B(LdaImmutableCurrentContextSlot), U8(2),
|
|
B(Star), R(5),
|
|
B(LdaFalse),
|
|
B(Star), R(6),
|
|
B(Mov), R(0), R(4),
|
|
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionReject), R(4), U8(3),
|
|
/* 96 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
OBJECT_BOILERPLATE_DESCRIPTION_TYPE,
|
|
ARRAY_BOILERPLATE_DESCRIPTION_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["a"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
Smi [6],
|
|
Smi [9],
|
|
SCOPE_INFO_TYPE,
|
|
]
|
|
handlers: [
|
|
[16, 218, 218],
|
|
[46, 99, 107],
|
|
[131, 164, 166],
|
|
]
|
|
|