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v8/test/cctest/interpreter/bytecode_expectations/ForOfLoop.golden
Santiago Aboy Solanes a447a44f31 [interpreter] Make IterationBody StackChecks implicit within JumpLoop 
Since now the IterationBody StackChecks are implicit within JumpLoops,
we are able to eagerly deopt in them. If we do that, whenever we advance
to the next bytecode we don't have to advance to the next literal
bytecode, but instead "advance" in the sense of doing the JumpLoop.

Adding tests that test this advancing for wide and extra wide JumpLoops.

Also, marking JumpLoop as needing source positions since now it has
the ability of causing an interrupt.

Bug: v8:10149, v8:9960
Fixes: v8:10149
Change-Id: Ib0d9efdfb379e0dfbba7a7f67cba9262668813b0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2064226
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66809}
2020-03-20 13:22:41 +00:00

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#
# Autogenerated by generate-bytecode-expectations.
#
---
wrap: no
test function name: f
---
snippet: "
function f(arr) {
for (let x of arr) { let y = x; }
}
f([1, 2, 3]);
"
frame size: 15
parameter count: 2
bytecode array length: 160
bytecodes: [
/* 34 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(5),
B(LdaNamedProperty), R(5), U8(0), U8(4),
B(Star), R(4),
B(LdaFalse),
B(Star), R(6),
B(Mov), R(context), R(9),
B(LdaTrue),
B(Star), R(6),
/* 29 S> */ B(CallProperty0), R(4), R(5), U8(6),
B(Star), R(10),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(10), U8(1),
B(LdaNamedProperty), R(10), U8(1), U8(8),
B(JumpIfToBooleanTrue), U8(25),
B(LdaNamedProperty), R(10), U8(2), U8(10),
B(Star), R(10),
B(LdaFalse),
B(Star), R(6),
B(Mov), R(10), R(0),
/* 29 S> */ B(Mov), R(0), R(2),
/* 49 S> */ B(Mov), R(2), R(3),
B(Ldar), R(10),
/* 20 E> */ B(JumpLoop), U8(42), I8(0),
B(LdaSmi), I8(-1),
B(Star), R(8),
B(Star), R(7),
B(Jump), U8(7),
B(Star), R(8),
B(LdaZero),
B(Star), R(7),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(9),
B(Ldar), R(6),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(5), U8(3), U8(12),
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(160),
B(Star), R(13),
B(LdaConstant), U8(4),
B(Star), R(14),
B(CallRuntime), U16(Runtime::kNewTypeError), R(13), U8(2),
B(Throw),
B(CallProperty0), R(11), R(5), U8(14),
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(7),
B(JumpIfTrue), U8(5),
B(Ldar), R(12),
B(ReThrow),
B(Ldar), R(9),
B(SetPendingMessage),
B(LdaZero),
B(TestReferenceEqual), R(7),
B(JumpIfFalse), U8(5),
B(Ldar), R(8),
B(ReThrow),
B(LdaUndefined),
/* 54 S> */ B(Return),
]
constant pool: [
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 [""],
]
handlers: [
[25, 70, 78],
[102, 135, 137],
]
---
snippet: "
function f(arr) {
for (let x of arr) { eval('1'); }
}
f([1, 2, 3]);
"
frame size: 20
parameter count: 2
bytecode array length: 244
bytecodes: [
/* 10 E> */ B(CreateFunctionContext), U8(0), U8(5),
B(PushContext), R(2),
B(Ldar), R(this),
B(StaCurrentContextSlot), U8(4),
B(Ldar), R(arg0),
B(StaCurrentContextSlot), U8(3),
B(CreateMappedArguments),
B(StaCurrentContextSlot), U8(6),
B(Ldar), R(1),
B(StaCurrentContextSlot), U8(5),
B(CreateBlockContext), U8(1),
B(PushContext), R(3),
B(LdaTheHole),
B(StaCurrentContextSlot), U8(2),
/* 34 S> */ B(LdaContextSlot), R(3), U8(3), U8(0),
B(Star), R(6),
B(GetIterator), R(6), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(5),
B(LdaNamedProperty), R(5), U8(2), U8(4),
B(Star), R(4),
B(LdaFalse),
B(Star), R(6),
B(Mov), R(context), R(9),
B(LdaTrue),
B(Star), R(6),
/* 29 S> */ B(CallProperty0), R(4), R(5), U8(6),
B(Star), R(10),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(10), U8(1),
B(LdaNamedProperty), R(10), U8(3), U8(8),
B(JumpIfToBooleanTrue), U8(74),
B(LdaNamedProperty), R(10), U8(4), U8(10),
B(Star), R(10),
B(LdaFalse),
B(Star), R(6),
B(Mov), R(10), R(0),
B(CreateBlockContext), U8(5),
B(PushContext), R(11),
B(LdaTheHole),
B(StaCurrentContextSlot), U8(2),
/* 29 S> */ B(Ldar), R(0),
/* 29 E> */ B(StaCurrentContextSlot), U8(2),
/* 41 S> */ B(LdaLookupGlobalSlot), U8(6), U8(12), U8(3),
B(Star), R(12),
B(LdaConstant), U8(7),
B(Star), R(13),
B(LdaZero),
B(Star), R(17),
B(LdaSmi), I8(37),
B(Star), R(18),
B(LdaSmi), I8(41),
B(Star), R(19),
B(Mov), R(12), R(14),
B(Mov), R(13), R(15),
B(Mov), R(closure), R(16),
B(CallRuntime), U16(Runtime::kResolvePossiblyDirectEval), R(14), U8(6),
B(Star), R(12),
/* 41 E> */ B(CallUndefinedReceiver1), R(12), R(13), U8(14),
B(PopContext), R(11),
B(Mov), R(0), R(10),
/* 20 E> */ B(JumpLoop), U8(91), I8(0),
B(LdaSmi), I8(-1),
B(Star), R(8),
B(Star), R(7),
B(Jump), U8(7),
B(Star), R(8),
B(LdaZero),
B(Star), R(7),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(9),
B(Ldar), R(6),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(5), U8(8), U8(16),
B(Star), R(12),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(13),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(160),
B(Star), R(14),
B(LdaConstant), U8(9),
B(Star), R(15),
B(CallRuntime), U16(Runtime::kNewTypeError), R(14), U8(2),
B(Throw),
B(CallProperty0), R(12), R(5), U8(18),
B(JumpIfJSReceiver), U8(21),
B(Star), R(14),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(14), U8(1),
B(Jump), U8(12),
B(Star), R(13),
B(LdaZero),
B(TestReferenceEqual), R(7),
B(JumpIfTrue), U8(5),
B(Ldar), R(13),
B(ReThrow),
B(Ldar), R(9),
B(SetPendingMessage),
B(LdaZero),
B(TestReferenceEqual), R(7),
B(JumpIfFalse), U8(5),
B(Ldar), R(8),
B(ReThrow),
B(PopContext), R(3),
B(LdaUndefined),
/* 54 S> */ B(Return),
]
constant pool: [
SCOPE_INFO_TYPE,
SCOPE_INFO_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
SCOPE_INFO_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["eval"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["1"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
]
handlers: [
[58, 152, 160],
[184, 217, 219],
]
---
snippet: "
function f(arr) {
for (let x of arr) { (function() { return x; })(); }
}
f([1, 2, 3]);
"
frame size: 14
parameter count: 2
bytecode array length: 177
bytecodes: [
/* 34 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(3),
B(LdaNamedProperty), R(3), U8(0), U8(4),
B(Star), R(2),
B(LdaFalse),
B(Star), R(4),
B(Mov), R(context), R(7),
B(LdaTrue),
B(Star), R(4),
/* 29 S> */ B(CallProperty0), R(2), R(3), U8(6),
B(Star), R(8),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(8), U8(1),
B(LdaNamedProperty), R(8), U8(1), U8(8),
B(JumpIfToBooleanTrue), U8(42),
B(LdaNamedProperty), R(8), U8(2), U8(10),
B(Star), R(8),
B(LdaFalse),
B(Star), R(4),
B(Mov), R(8), R(0),
B(CreateBlockContext), U8(3),
B(PushContext), R(9),
B(LdaTheHole),
B(StaCurrentContextSlot), U8(2),
/* 29 S> */ B(Ldar), R(0),
/* 29 E> */ B(StaCurrentContextSlot), U8(2),
/* 41 S> */ B(CreateClosure), U8(4), U8(0), U8(2),
B(Star), R(10),
/* 67 E> */ B(CallUndefinedReceiver0), R(10), U8(12),
B(PopContext), R(9),
B(Mov), R(0), R(8),
/* 20 E> */ B(JumpLoop), U8(59), I8(0),
B(LdaSmi), I8(-1),
B(Star), R(6),
B(Star), R(5),
B(Jump), U8(7),
B(Star), R(6),
B(LdaZero),
B(Star), R(5),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(7),
B(Ldar), R(4),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(3), U8(5), U8(14),
B(Star), R(10),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(11),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(160),
B(Star), R(12),
B(LdaConstant), U8(6),
B(Star), R(13),
B(CallRuntime), U16(Runtime::kNewTypeError), R(12), U8(2),
B(Throw),
B(CallProperty0), R(10), R(3), U8(16),
B(JumpIfJSReceiver), U8(21),
B(Star), R(12),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(12), U8(1),
B(Jump), U8(12),
B(Star), R(11),
B(LdaZero),
B(TestReferenceEqual), R(5),
B(JumpIfTrue), U8(5),
B(Ldar), R(11),
B(ReThrow),
B(Ldar), R(7),
B(SetPendingMessage),
B(LdaZero),
B(TestReferenceEqual), R(5),
B(JumpIfFalse), U8(5),
B(Ldar), R(6),
B(ReThrow),
B(LdaUndefined),
/* 73 S> */ B(Return),
]
constant pool: [
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
SCOPE_INFO_TYPE,
SHARED_FUNCTION_INFO_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
]
handlers: [
[25, 87, 95],
[119, 152, 154],
]
---
snippet: "
function f(arr) {
for (let { x, y } of arr) { let z = x + y; }
}
f([{ x: 0, y: 3 }, { x: 1, y: 9 }, { x: -12, y: 17 }]);
"
frame size: 17
parameter count: 2
bytecode array length: 171
bytecodes: [
/* 41 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(7),
B(LdaNamedProperty), R(7), U8(0), U8(4),
B(Star), R(6),
B(LdaFalse),
B(Star), R(8),
B(Mov), R(context), R(11),
B(LdaTrue),
B(Star), R(8),
/* 36 S> */ B(CallProperty0), R(6), R(7), U8(6),
B(Star), R(12),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(12), U8(1),
B(LdaNamedProperty), R(12), U8(1), U8(8),
B(JumpIfToBooleanTrue), U8(36),
B(LdaNamedProperty), R(12), U8(2), U8(10),
B(Star), R(12),
B(LdaFalse),
B(Star), R(8),
B(Mov), R(12), R(0),
/* 31 S> */ B(LdaNamedProperty), R(0), U8(3), U8(12),
B(Star), R(3),
/* 34 S> */ B(LdaNamedProperty), R(0), U8(4), U8(14),
B(Star), R(4),
/* 56 S> */ B(Ldar), R(4),
/* 58 E> */ B(Add), R(3), U8(16),
B(Star), R(5),
/* 20 E> */ B(JumpLoop), U8(53), I8(0),
B(LdaSmi), I8(-1),
B(Star), R(10),
B(Star), R(9),
B(Jump), U8(7),
B(Star), R(10),
B(LdaZero),
B(Star), R(9),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(11),
B(Ldar), R(8),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(7), U8(5), U8(17),
B(Star), R(13),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(14),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(160),
B(Star), R(15),
B(LdaConstant), U8(6),
B(Star), R(16),
B(CallRuntime), U16(Runtime::kNewTypeError), R(15), U8(2),
B(Throw),
B(CallProperty0), R(13), R(7), U8(19),
B(JumpIfJSReceiver), U8(21),
B(Star), R(15),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(15), U8(1),
B(Jump), U8(12),
B(Star), R(14),
B(LdaZero),
B(TestReferenceEqual), R(9),
B(JumpIfTrue), U8(5),
B(Ldar), R(14),
B(ReThrow),
B(Ldar), R(11),
B(SetPendingMessage),
B(LdaZero),
B(TestReferenceEqual), R(9),
B(JumpIfFalse), U8(5),
B(Ldar), R(10),
B(ReThrow),
B(LdaUndefined),
/* 65 S> */ B(Return),
]
constant pool: [
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["x"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["y"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
]
handlers: [
[25, 81, 89],
[113, 146, 148],
]
---
snippet: "
function* f(arr) {
for (let x of arr) { let y = x; }
}
f([1, 2, 3]);
"
frame size: 16
parameter count: 2
bytecode array length: 201
bytecodes: [
B(SwitchOnGeneratorState), R(0), U8(0), U8(1),
B(Mov), R(closure), R(5),
B(Mov), R(this), R(6),
/* 11 E> */ B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(5), U8(2),
B(Star), R(0),
/* 11 E> */ B(SuspendGenerator), R(0), R(0), U8(5), U8(0),
B(ResumeGenerator), R(0), R(0), U8(5),
B(Star), R(5),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
B(SwitchOnSmiNoFeedback), U8(1), U8(2), I8(0),
B(Ldar), R(5),
/* 11 E> */ B(Throw),
B(Ldar), R(5),
/* 55 S> */ B(Return),
/* 35 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(6),
B(LdaNamedProperty), R(6), U8(3), U8(4),
B(Star), R(5),
B(LdaFalse),
B(Star), R(7),
B(Mov), R(context), R(10),
B(LdaTrue),
B(Star), R(7),
/* 30 S> */ B(CallProperty0), R(5), R(6), U8(6),
B(Star), R(11),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
B(LdaNamedProperty), R(11), U8(4), U8(8),
B(JumpIfToBooleanTrue), U8(25),
B(LdaNamedProperty), R(11), U8(5), U8(10),
B(Star), R(11),
B(LdaFalse),
B(Star), R(7),
B(Mov), R(11), R(1),
/* 30 S> */ B(Mov), R(1), R(3),
/* 50 S> */ B(Mov), R(3), R(4),
B(Ldar), R(11),
/* 21 E> */ B(JumpLoop), U8(42), 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(58),
B(LdaNamedProperty), R(6), U8(6), U8(12),
B(Star), R(12),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(13),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(160),
B(Star), R(14),
B(LdaConstant), U8(7),
B(Star), R(15),
B(CallRuntime), U16(Runtime::kNewTypeError), R(14), U8(2),
B(Throw),
B(CallProperty0), R(12), R(6), U8(14),
B(JumpIfJSReceiver), U8(21),
B(Star), R(14),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(14), U8(1),
B(Jump), U8(12),
B(Star), R(13),
B(LdaZero),
B(TestReferenceEqual), R(8),
B(JumpIfTrue), U8(5),
B(Ldar), R(13),
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),
/* 55 S> */ B(Return),
]
constant pool: [
Smi [21],
Smi [10],
Smi [7],
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 [""],
]
handlers: [
[66, 111, 119],
[143, 176, 178],
]
---
snippet: "
function* f(arr) {
for (let x of arr) yield x;
}
f([1, 2, 3]);
"
frame size: 15
parameter count: 2
bytecode array length: 245
bytecodes: [
B(SwitchOnGeneratorState), R(0), U8(0), U8(2),
B(Mov), R(closure), R(4),
B(Mov), R(this), R(5),
/* 11 E> */ B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(4), U8(2),
B(Star), R(0),
/* 11 E> */ B(SuspendGenerator), R(0), R(0), U8(4), U8(0),
B(ResumeGenerator), R(0), R(0), U8(4),
B(Star), R(4),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0),
B(Ldar), R(4),
/* 11 E> */ B(Throw),
B(Ldar), R(4),
/* 49 S> */ B(Return),
/* 35 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(5),
B(LdaNamedProperty), R(5), U8(4), U8(4),
B(Star), R(4),
B(LdaFalse),
B(Star), R(6),
B(Mov), R(context), R(9),
B(LdaTrue),
B(Star), R(6),
/* 30 S> */ B(CallProperty0), R(4), R(5), U8(6),
B(Star), R(10),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(10), U8(1),
B(LdaNamedProperty), R(10), U8(5), U8(8),
B(JumpIfToBooleanTrue), U8(63),
B(LdaNamedProperty), R(10), U8(6), U8(10),
B(Star), R(10),
B(LdaFalse),
B(Star), R(6),
B(Mov), R(10), R(1),
/* 30 S> */ B(Mov), R(1), R(3),
/* 40 S> */ B(LdaFalse),
B(Star), R(12),
B(Mov), R(3), R(11),
B(InvokeIntrinsic), U8(Runtime::k_CreateIterResultObject), R(11), U8(2),
/* 40 E> */ B(SuspendGenerator), R(0), R(0), U8(11), U8(1),
B(ResumeGenerator), R(0), R(0), U8(11),
B(Star), R(11),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
B(SwitchOnSmiNoFeedback), U8(7), U8(2), I8(0),
B(Ldar), R(11),
/* 40 E> */ B(Throw),
B(LdaSmi), I8(1),
B(Star), R(7),
B(Mov), R(11), R(8),
B(Jump), U8(20),
B(Ldar), R(11),
/* 21 E> */ B(JumpLoop), U8(80), I8(0),
B(LdaSmi), I8(-1),
B(Star), R(8),
B(Star), R(7),
B(Jump), U8(7),
B(Star), R(8),
B(LdaZero),
B(Star), R(7),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(9),
B(Ldar), R(6),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(5), U8(9), U8(12),
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(160),
B(Star), R(13),
B(LdaConstant), U8(10),
B(Star), R(14),
B(CallRuntime), U16(Runtime::kNewTypeError), R(13), U8(2),
B(Throw),
B(CallProperty0), R(11), R(5), U8(14),
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(7),
B(JumpIfTrue), U8(5),
B(Ldar), R(12),
B(ReThrow),
B(Ldar), R(9),
B(SetPendingMessage),
B(Ldar), R(7),
B(SwitchOnSmiNoFeedback), U8(11), U8(2), I8(0),
B(Jump), U8(8),
B(Ldar), R(8),
B(ReThrow),
B(Ldar), R(8),
/* 49 S> */ B(Return),
B(LdaUndefined),
/* 49 S> */ B(Return),
]
constant pool: [
Smi [21],
Smi [118],
Smi [10],
Smi [7],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
Smi [16],
Smi [7],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
Smi [6],
Smi [9],
]
handlers: [
[66, 149, 157],
[181, 214, 216],
]
---
snippet: "
async function f(arr) {
for (let x of arr) { let y = x; }
}
f([1, 2, 3]);
"
frame size: 17
parameter count: 2
bytecode array length: 215
bytecodes: [
B(Mov), R(closure), R(5),
B(Mov), R(this), R(6),
/* 16 E> */ B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionEnter), R(5), U8(2),
B(Star), R(0),
B(Mov), R(context), R(5),
/* 40 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(7),
B(LdaNamedProperty), R(7), U8(0), U8(4),
B(Star), R(6),
B(LdaFalse),
B(Star), R(8),
B(Mov), R(context), R(11),
B(LdaTrue),
B(Star), R(8),
/* 35 S> */ B(CallProperty0), R(6), R(7), U8(6),
B(Star), R(12),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(12), U8(1),
B(LdaNamedProperty), R(12), U8(1), U8(8),
B(JumpIfToBooleanTrue), U8(25),
B(LdaNamedProperty), R(12), U8(2), U8(10),
B(Star), R(12),
B(LdaFalse),
B(Star), R(8),
B(Mov), R(12), R(1),
/* 35 S> */ B(Mov), R(1), R(3),
/* 55 S> */ B(Mov), R(3), R(4),
B(Ldar), R(12),
/* 26 E> */ B(JumpLoop), U8(42), I8(0),
B(LdaSmi), I8(-1),
B(Star), R(10),
B(Star), R(9),
B(Jump), U8(7),
B(Star), R(10),
B(LdaZero),
B(Star), R(9),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(11),
B(Ldar), R(8),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(7), U8(3), U8(12),
B(Star), R(13),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(14),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(160),
B(Star), R(15),
B(LdaConstant), U8(4),
B(Star), R(16),
B(CallRuntime), U16(Runtime::kNewTypeError), R(15), U8(2),
B(Throw),
B(CallProperty0), R(13), R(7), U8(14),
B(JumpIfJSReceiver), U8(21),
B(Star), R(15),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(15), U8(1),
B(Jump), U8(12),
B(Star), R(14),
B(LdaZero),
B(TestReferenceEqual), R(9),
B(JumpIfTrue), U8(5),
B(Ldar), R(14),
B(ReThrow),
B(Ldar), R(11),
B(SetPendingMessage),
B(LdaZero),
B(TestReferenceEqual), R(9),
B(JumpIfFalse), U8(5),
B(Ldar), R(10),
B(ReThrow),
B(LdaUndefined),
B(Star), R(7),
B(LdaFalse),
B(Star), R(8),
B(Mov), R(0), R(6),
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionResolve), R(6), U8(3),
/* 60 S> */ B(Return),
B(Star), R(6),
B(CreateCatchContext), R(6), U8(5),
B(Star), R(5),
B(LdaTheHole),
B(SetPendingMessage),
B(Ldar), R(5),
B(PushContext), R(6),
B(LdaImmutableCurrentContextSlot), U8(2),
B(Star), R(8),
B(LdaFalse),
B(Star), R(9),
B(Mov), R(0), R(7),
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionReject), R(7), U8(3),
/* 60 S> */ B(Return),
]
constant pool: [
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: [
[15, 187, 187],
[40, 85, 93],
[117, 150, 152],
]
---
snippet: "
async function f(arr) {
for (let x of arr) await x;
}
f([1, 2, 3]);
"
frame size: 16
parameter count: 2
bytecode array length: 251
bytecodes: [
B(SwitchOnGeneratorState), R(0), U8(0), U8(1),
B(Mov), R(closure), R(4),
B(Mov), R(this), R(5),
/* 16 E> */ B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionEnter), R(4), U8(2),
B(Star), R(0),
B(Mov), R(context), R(4),
/* 40 S> */ B(GetIterator), R(arg0), U8(0), U8(2),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(6),
B(LdaNamedProperty), R(6), U8(1), U8(4),
B(Star), R(5),
B(LdaFalse),
B(Star), R(7),
B(Mov), R(context), R(10),
B(LdaTrue),
B(Star), R(7),
/* 35 S> */ B(CallProperty0), R(5), R(6), U8(6),
B(Star), R(11),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
B(LdaNamedProperty), R(11), U8(2), U8(8),
B(JumpIfToBooleanTrue), U8(57),
B(LdaNamedProperty), R(11), U8(3), U8(10),
B(Star), R(11),
B(LdaFalse),
B(Star), R(7),
B(Mov), R(11), R(1),
/* 35 S> */ B(Mov), R(1), R(3),
/* 45 S> */ B(Mov), R(0), R(12),
B(Mov), R(3), R(13),
B(InvokeIntrinsic), U8(Runtime::k_AsyncFunctionAwaitUncaught), R(12), U8(2),
/* 45 E> */ 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),
/* 26 E> */ B(JumpLoop), U8(74), 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(58),
B(LdaNamedProperty), R(6), U8(4), U8(12),
B(Star), R(12),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(13),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(160),
B(Star), R(14),
B(LdaConstant), U8(5),
B(Star), R(15),
B(CallRuntime), U16(Runtime::kNewTypeError), R(14), U8(2),
B(Throw),
B(CallProperty0), R(12), R(6), U8(14),
B(JumpIfJSReceiver), U8(21),
B(Star), R(14),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(14), U8(1),
B(Jump), U8(12),
B(Star), R(13),
B(LdaZero),
B(TestReferenceEqual), R(8),
B(JumpIfTrue), U8(5),
B(Ldar), R(13),
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),
/* 54 S> */ B(Return),
B(Star), R(5),
B(CreateCatchContext), R(5), U8(6),
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),
/* 54 S> */ B(Return),
]
constant pool: [
Smi [96],
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: [
[19, 223, 223],
[44, 121, 129],
[153, 186, 188],
]
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