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v8/test/cctest/interpreter/bytecode_expectations/ForOf.golden
Swapnil Gaikwad 91e3243d60 Extend GetIterator bytecode to perform JSReceiver check on object[Symbol.iterator]() 
Current GetIterator bytecode loads and calls @@iterator property on a
given object. This change extends the bytecode functionality to check
whether the value returned after calling @@iterator property is a valid
JSReceiver. The bytecode throws SymbolIteratorInvalid exception if the
returned value is not a valid JSReceiver. This change absorbs the
functionality of additional two bytecodes - JumpIfJSReceiver and
CallRuntime, that are part of the iterator protocol in the GetIterator
bytecode.

Bug: v8:9489
Change-Id: I9e84cfe85eeb9a1b8a97ca0595375ac26ba1bbfd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792905
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Swapnil Gaikwad <swapnilgaikwad@google.com>
Cr-Commit-Position: refs/heads/master@{#63704}
2019-09-12 08:51:35 +00:00

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#
# Autogenerated by generate-bytecode-expectations.
#
---
wrap: yes
---
snippet: "
for (var p of [0, 1, 2]) {}
"
frame size: 13
parameter count: 1
bytecode array length: 158
bytecodes: [
/* 30 E> */ B(StackCheck),
/* 48 S> */ B(CreateArrayLiteral), U8(0), U8(0), U8(37),
B(Star), R(4),
B(GetIterator), R(4), U8(1), U8(3),
B(Star), R(3),
B(LdaNamedProperty), R(3), U8(1), U8(5),
B(Star), R(2),
B(LdaFalse),
B(Star), R(4),
B(Mov), R(context), R(7),
B(LdaTrue),
B(Star), R(4),
/* 43 S> */ B(CallProperty0), R(2), R(3), U8(7),
B(Star), R(8),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(8), U8(1),
B(LdaNamedProperty), R(8), U8(2), U8(9),
B(JumpIfToBooleanTrue), U8(23),
B(LdaNamedProperty), R(8), U8(3), U8(11),
B(Star), R(8),
B(LdaFalse),
B(Star), R(4),
B(Mov), R(8), R(1),
/* 34 E> */ B(StackCheck),
/* 43 S> */ B(Mov), R(1), R(0),
B(Ldar), R(8),
B(JumpLoop), U8(40), 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),
/* 43 E> */ B(SetPendingMessage),
B(Star), R(7),
B(Ldar), R(4),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(3), U8(4), U8(13),
B(Star), R(9),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(10),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(159),
B(Star), R(11),
B(LdaConstant), U8(5),
B(Star), R(12),
B(CallRuntime), U16(Runtime::kNewTypeError), R(11), U8(2),
B(Throw),
B(CallProperty0), R(9), R(3), U8(15),
B(JumpIfJSReceiver), U8(21),
B(Star), R(11),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
B(Jump), U8(12),
B(Star), R(10),
B(LdaZero),
B(TestReferenceEqual), R(5),
B(JumpIfTrue), U8(5),
B(Ldar), R(10),
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),
/* 62 S> */ B(Return),
]
constant pool: [
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 ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
]
handlers: [
[25, 68, 76],
[100, 133, 135],
]
---
snippet: "
var x = 'potatoes';
for (var p of x) { return p; }
"
frame size: 14
parameter count: 1
bytecode array length: 166
bytecodes: [
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(LdaConstant), U8(0),
B(Star), R(0),
/* 68 S> */ B(GetIterator), R(0), U8(0), U8(2),
B(Star), R(4),
B(LdaNamedProperty), R(4), U8(1), U8(4),
B(Star), R(3),
B(LdaFalse),
B(Star), R(5),
B(Mov), R(context), R(8),
B(LdaTrue),
B(Star), R(5),
/* 63 S> */ B(CallProperty0), R(3), R(4), U8(6),
B(Star), R(9),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(9), U8(1),
B(LdaNamedProperty), R(9), U8(2), U8(8),
B(JumpIfToBooleanTrue), U8(27),
B(LdaNamedProperty), R(9), U8(3), U8(10),
B(Star), R(9),
B(LdaFalse),
B(Star), R(5),
B(Mov), R(9), R(2),
/* 54 E> */ B(StackCheck),
/* 63 S> */ B(Mov), R(2), R(1),
/* 73 S> */ B(LdaSmi), I8(1),
B(Mov), R(9), R(7),
B(Star), R(6),
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(4), U8(12),
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(159),
B(Star), R(12),
B(LdaConstant), U8(5),
B(Star), R(13),
B(CallRuntime), U16(Runtime::kNewTypeError), R(12), U8(2),
B(Throw),
B(CallProperty0), R(10), R(4), U8(14),
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(6),
B(JumpIfTrue), U8(5),
B(Ldar), R(11),
B(ReThrow),
B(Ldar), R(8),
B(SetPendingMessage),
B(Ldar), R(6),
B(SwitchOnSmiNoFeedback), U8(6), U8(2), I8(0),
B(Jump), U8(8),
B(Ldar), R(7),
B(ReThrow),
B(Ldar), R(7),
/* 85 S> */ B(Return),
B(LdaUndefined),
/* 85 S> */ B(Return),
]
constant pool: [
ONE_BYTE_INTERNALIZED_STRING_TYPE ["potatoes"],
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],
]
handlers: [
[23, 70, 78],
[102, 135, 137],
]
---
snippet: "
for (var x of [10, 20, 30]) {
if (x == 10) continue;
if (x == 20) break;
}
"
frame size: 13
parameter count: 1
bytecode array length: 174
bytecodes: [
/* 30 E> */ B(StackCheck),
/* 48 S> */ B(CreateArrayLiteral), U8(0), U8(0), U8(37),
B(Star), R(4),
B(GetIterator), R(4), U8(1), U8(3),
B(Star), R(3),
B(LdaNamedProperty), R(3), U8(1), U8(5),
B(Star), R(2),
B(LdaFalse),
B(Star), R(4),
B(Mov), R(context), R(7),
B(LdaTrue),
B(Star), R(4),
/* 43 S> */ B(CallProperty0), R(2), R(3), U8(7),
B(Star), R(8),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(8), U8(1),
B(LdaNamedProperty), R(8), U8(2), U8(9),
B(JumpIfToBooleanTrue), U8(39),
B(LdaNamedProperty), R(8), U8(3), U8(11),
B(Star), R(8),
B(LdaFalse),
B(Star), R(4),
B(Mov), R(8), R(1),
/* 34 E> */ B(StackCheck),
/* 43 S> */ B(Mov), R(1), R(0),
/* 66 S> */ B(LdaSmi), I8(10),
/* 72 E> */ B(TestEqual), R(0), U8(13),
B(JumpIfFalse), U8(4),
/* 79 S> */ B(Jump), U8(11),
/* 91 S> */ B(LdaSmi), I8(20),
/* 97 E> */ B(TestEqual), R(0), U8(14),
B(JumpIfFalse), U8(4),
/* 104 S> */ B(Jump), U8(5),
B(JumpLoop), U8(56), 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(4), U8(15),
B(Star), R(9),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(10),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(159),
B(Star), R(11),
B(LdaConstant), U8(5),
B(Star), R(12),
B(CallRuntime), U16(Runtime::kNewTypeError), R(11), U8(2),
B(Throw),
B(CallProperty0), R(9), R(3), U8(17),
B(JumpIfJSReceiver), U8(21),
B(Star), R(11),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
B(Jump), U8(12),
B(Star), R(10),
B(LdaZero),
B(TestReferenceEqual), R(5),
B(JumpIfTrue), U8(5),
B(Ldar), R(10),
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),
/* 113 S> */ B(Return),
]
constant pool: [
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 ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
]
handlers: [
[25, 84, 92],
[116, 149, 151],
]
---
snippet: "
var x = { 'a': 1, 'b': 2 };
for (x['a'] of [1,2,3]) { return x['a']; }
"
frame size: 13
parameter count: 1
bytecode array length: 180
bytecodes: [
/* 30 E> */ B(StackCheck),
/* 42 S> */ B(CreateObjectLiteral), U8(0), U8(0), U8(41),
B(Star), R(0),
/* 77 S> */ B(CreateArrayLiteral), U8(1), U8(1), U8(37),
B(Star), R(3),
B(GetIterator), R(3), U8(2), U8(4),
B(Star), R(2),
B(LdaNamedProperty), R(2), U8(2), U8(6),
B(Star), R(1),
B(LdaFalse),
B(Star), R(3),
B(Mov), R(context), R(6),
B(LdaTrue),
B(Star), R(3),
/* 68 S> */ B(CallProperty0), R(1), R(2), U8(8),
B(Star), R(7),
B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(7), U8(1),
B(LdaNamedProperty), R(7), U8(3), U8(10),
B(JumpIfToBooleanTrue), U8(33),
B(LdaNamedProperty), R(7), U8(4), U8(12),
B(Star), R(7),
B(LdaFalse),
B(Star), R(3),
B(Ldar), R(7),
/* 67 E> */ B(StaNamedProperty), R(0), U8(5), U8(14),
/* 62 E> */ B(StackCheck),
/* 96 S> */ B(LdaNamedProperty), R(0), U8(5), U8(16),
B(Star), R(5),
B(LdaSmi), I8(1),
B(Star), R(4),
B(Mov), R(0), R(8),
B(Jump), U8(15),
B(LdaSmi), I8(-1),
B(Star), R(5),
B(Star), R(4),
B(Jump), U8(7),
B(Star), R(5),
B(LdaZero),
B(Star), R(4),
B(LdaTheHole),
B(SetPendingMessage),
B(Star), R(6),
B(Ldar), R(3),
B(JumpIfToBooleanTrue), U8(58),
B(LdaNamedProperty), R(2), U8(6), U8(18),
B(Star), R(9),
B(JumpIfUndefinedOrNull), U8(50),
B(Mov), R(context), R(10),
B(TestTypeOf), U8(6),
B(JumpIfTrue), U8(18),
B(Wide), B(LdaSmi), I16(159),
B(Star), R(11),
B(LdaConstant), U8(7),
B(Star), R(12),
B(CallRuntime), U16(Runtime::kNewTypeError), R(11), U8(2),
B(Throw),
B(CallProperty0), R(9), R(2), U8(20),
B(JumpIfJSReceiver), U8(21),
B(Star), R(11),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(11), U8(1),
B(Jump), U8(12),
B(Star), R(10),
B(LdaZero),
B(TestReferenceEqual), R(4),
B(JumpIfTrue), U8(5),
B(Ldar), R(10),
B(ReThrow),
B(Ldar), R(6),
B(SetPendingMessage),
B(Ldar), R(4),
B(SwitchOnSmiNoFeedback), U8(8), U8(2), I8(0),
B(Jump), U8(8),
B(Ldar), R(5),
B(ReThrow),
B(Ldar), R(5),
/* 105 S> */ B(Return),
B(LdaUndefined),
/* 105 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],
]
handlers: [
[31, 84, 92],
[116, 149, 151],
]
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