8b89a7c32d
The functionality of the GetIterator bytecode introduced previously is now extended from loading the @@iterator property to calling the property as well. This change basically absorbs the functionality of additional two bytecodes - Star, CallProperty0 in the GetIterator bytecode. Importantly, this change handles the cases of eager and lazy deoptimization in the middle of the bytecode, i.e., lazy deopt for LdaNamedProperty and eager deopt of the CallProperty0 bytecode, using the continuation builtins. This mechanism can work as a template for the future bytecode that require handling such inter-bytecode deopt scenario. The tests evaluating the eager and lazy deopt scenarios are also included. Bug: v8:9489 Change-Id: I93eb022bbc3d37582407820aa8482a343cac6c12 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1758313 Commit-Queue: Swapnil Gaikwad <swapnilgaikwad@google.com> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#63528}
334 lines
11 KiB
Plaintext
334 lines
11 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() { }
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f();
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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: 44
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bytecodes: [
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B(SwitchOnGeneratorState), R(0), U8(0), U8(1),
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B(Mov), R(closure), R(1),
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B(Mov), R(this), R(2),
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B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(1), U8(2),
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B(Star), R(0),
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/* 11 E> */ B(StackCheck),
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/* 11 E> */ B(SuspendGenerator), R(0), R(0), U8(1), U8(0),
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B(ResumeGenerator), R(0), R(0), U8(1),
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B(Star), R(1),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(SwitchOnSmiNoFeedback), U8(1), U8(2), I8(0),
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B(Ldar), R(1),
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/* 11 E> */ B(Throw),
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B(Ldar), R(1),
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/* 16 S> */ B(Return),
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B(LdaUndefined),
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/* 16 S> */ B(Return),
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]
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constant pool: [
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Smi [22],
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Smi [10],
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Smi [7],
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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() { yield 42 }
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f();
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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: 80
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bytecodes: [
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B(SwitchOnGeneratorState), R(0), U8(0), U8(2),
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B(Mov), R(closure), R(1),
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B(Mov), R(this), R(2),
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B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(1), U8(2),
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B(Star), R(0),
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/* 11 E> */ B(StackCheck),
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/* 11 E> */ B(SuspendGenerator), R(0), R(0), U8(1), U8(0),
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B(ResumeGenerator), R(0), R(0), U8(1),
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B(Star), R(1),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0),
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B(Ldar), R(1),
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/* 11 E> */ B(Throw),
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B(Ldar), R(1),
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/* 25 S> */ B(Return),
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/* 16 S> */ B(LdaSmi), I8(42),
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B(Star), R(1),
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B(LdaFalse),
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B(Star), R(2),
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B(InvokeIntrinsic), U8(Runtime::k_CreateIterResultObject), R(1), U8(2),
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/* 16 E> */ B(SuspendGenerator), R(0), R(0), U8(1), U8(1),
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B(ResumeGenerator), R(0), R(0), U8(1),
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B(Star), R(1),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(SwitchOnSmiNoFeedback), U8(4), U8(2), I8(0),
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B(Ldar), R(1),
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/* 16 E> */ B(Throw),
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B(Ldar), R(1),
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/* 25 S> */ B(Return),
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B(LdaUndefined),
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/* 25 S> */ B(Return),
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]
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constant pool: [
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Smi [22],
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Smi [58],
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Smi [10],
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Smi [7],
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Smi [10],
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Smi [7],
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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() { for (let x of [42]) yield x }
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f();
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"
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frame size: 15
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parameter count: 1
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bytecode array length: 253
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bytecodes: [
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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_CreateJSGeneratorObject), R(4), U8(2),
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B(Star), R(0),
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/* 11 E> */ B(StackCheck),
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/* 11 E> */ B(SuspendGenerator), R(0), R(0), U8(4), U8(0),
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B(ResumeGenerator), R(0), R(0), U8(4),
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B(Star), R(4),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0),
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B(Ldar), R(4),
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/* 11 E> */ B(Throw),
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B(Ldar), R(4),
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/* 44 S> */ B(Return),
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/* 30 S> */ B(CreateArrayLiteral), U8(4), U8(0), U8(37),
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B(Star), R(6),
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B(GetIterator), R(6), U8(1), U8(3),
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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(5),
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B(LdaNamedProperty), R(5), U8(5), U8(5),
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B(Star), R(4),
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B(LdaFalse),
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B(Star), R(6),
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B(Mov), R(context), R(9),
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B(LdaTrue),
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B(Star), R(6),
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/* 25 S> */ B(CallProperty0), R(4), R(5), U8(7),
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B(Star), R(10),
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B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(10), U8(1),
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B(LdaNamedProperty), R(10), U8(6), U8(9),
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B(JumpIfToBooleanTrue), U8(64),
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B(LdaNamedProperty), R(10), U8(7), U8(11),
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B(Star), R(10),
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B(LdaFalse),
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B(Star), R(6),
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B(Mov), R(10), R(1),
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/* 16 E> */ B(StackCheck),
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/* 25 S> */ B(Mov), R(1), R(3),
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/* 36 S> */ B(LdaFalse),
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B(Star), R(12),
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B(Mov), R(3), R(11),
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B(InvokeIntrinsic), U8(Runtime::k_CreateIterResultObject), R(11), U8(2),
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/* 36 E> */ B(SuspendGenerator), R(0), R(0), U8(11), U8(1),
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B(ResumeGenerator), R(0), R(0), U8(11),
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B(Star), R(11),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(SwitchOnSmiNoFeedback), U8(8), U8(2), I8(0),
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B(Ldar), R(11),
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/* 36 E> */ B(Throw),
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B(LdaSmi), I8(1),
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B(Star), R(7),
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B(Mov), R(11), R(8),
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B(Jump), U8(20),
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B(Ldar), R(11),
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B(JumpLoop), U8(81), I8(0),
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B(LdaSmi), I8(-1),
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B(Star), R(8),
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B(Star), R(7),
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B(Jump), U8(7),
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B(Star), R(8),
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B(LdaZero),
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B(Star), R(7),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Star), R(9),
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B(Ldar), R(6),
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B(JumpIfToBooleanTrue), U8(58),
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B(LdaNamedProperty), R(5), U8(10), U8(13),
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B(Star), R(11),
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B(JumpIfUndefinedOrNull), U8(50),
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B(Mov), R(context), R(12),
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B(TestTypeOf), U8(6),
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B(JumpIfTrue), U8(18),
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B(Wide), B(LdaSmi), I16(159),
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B(Star), R(13),
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B(LdaConstant), U8(11),
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B(Star), R(14),
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B(CallRuntime), U16(Runtime::kNewTypeError), R(13), U8(2),
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B(Throw),
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B(CallProperty0), R(11), R(5), U8(15),
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B(JumpIfJSReceiver), U8(21),
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B(Star), R(13),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(13), U8(1),
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B(Jump), U8(12),
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B(Star), R(12),
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B(LdaZero),
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B(TestReferenceEqual), R(7),
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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(9),
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B(SetPendingMessage),
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B(Ldar), R(7),
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B(SwitchOnSmiNoFeedback), U8(12), U8(2), I8(0),
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B(Jump), U8(8),
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B(Ldar), R(8),
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B(ReThrow),
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B(Ldar), R(8),
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/* 44 S> */ B(Return),
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B(LdaUndefined),
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/* 44 S> */ B(Return),
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]
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constant pool: [
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Smi [22],
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Smi [126],
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Smi [10],
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Smi [7],
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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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Smi [16],
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Smi [7],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
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Smi [6],
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Smi [9],
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]
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handlers: [
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[73, 157, 165],
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[189, 222, 224],
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]
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---
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snippet: "
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function* g() { yield 42 }
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function* f() { yield* g() }
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f();
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"
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frame size: 7
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parameter count: 1
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bytecode array length: 205
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bytecodes: [
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B(SwitchOnGeneratorState), R(0), U8(0), U8(2),
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B(Mov), R(closure), R(1),
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B(Mov), R(this), R(2),
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B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(1), U8(2),
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B(Star), R(0),
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/* 38 E> */ B(StackCheck),
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/* 38 E> */ B(SuspendGenerator), R(0), R(0), U8(1), U8(0),
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B(ResumeGenerator), R(0), R(0), U8(1),
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B(Star), R(1),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0),
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B(Ldar), R(1),
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/* 38 E> */ B(Throw),
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B(Ldar), R(1),
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/* 54 S> */ B(Return),
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/* 43 S> */ B(LdaGlobal), U8(4), U8(0),
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B(Star), R(5),
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/* 50 E> */ B(CallUndefinedReceiver0), R(5), U8(2),
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B(Star), R(6),
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B(GetIterator), R(6), U8(4), U8(6),
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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(3),
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B(LdaNamedProperty), R(3), U8(5), U8(8),
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B(Star), R(5),
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B(LdaUndefined),
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B(Star), R(4),
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B(LdaZero),
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B(Star), R(2),
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B(Ldar), R(2),
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B(SwitchOnSmiNoFeedback), U8(6), U8(2), I8(1),
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B(CallProperty1), R(5), R(3), R(4), U8(10),
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B(Jump), U8(63),
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B(LdaNamedProperty), R(3), U8(8), U8(12),
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B(JumpIfUndefinedOrNull), U8(11),
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B(Star), R(6),
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B(CallProperty1), R(6), R(3), R(4), U8(14),
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B(Jump), U8(48),
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B(Ldar), R(4),
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/* 54 S> */ B(Return),
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B(LdaNamedProperty), R(3), U8(9), U8(16),
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B(JumpIfUndefinedOrNull), U8(11),
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B(Star), R(6),
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B(CallProperty1), R(6), R(3), R(4), U8(18),
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B(Jump), U8(30),
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B(LdaNamedProperty), R(3), U8(8), U8(20),
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B(JumpIfUndefinedOrNull), U8(19),
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B(Star), R(6),
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B(CallProperty0), R(6), R(3), U8(22),
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B(Jump), U8(2),
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B(JumpIfJSReceiver), U8(9),
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B(Star), R(6),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(6), U8(1),
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B(CallRuntime), U16(Runtime::kThrowThrowMethodMissing), R(0), U8(0),
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B(Star), R(1),
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B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(1), U8(1),
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B(LdaNamedProperty), R(1), U8(10), U8(24),
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B(JumpIfToBooleanTrue), U8(24),
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B(Ldar), R(1),
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/* 43 E> */ B(SuspendGenerator), R(0), R(0), U8(6), U8(1),
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B(ResumeGenerator), R(0), R(0), U8(6),
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B(Star), R(4),
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B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
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B(Star), R(2),
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B(JumpLoop), U8(108), I8(0),
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B(LdaNamedProperty), R(1), U8(11), U8(26),
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B(Star), R(3),
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B(LdaSmi), I8(1),
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B(TestReferenceEqual), R(2),
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B(JumpIfFalse), U8(5),
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B(Ldar), R(3),
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/* 54 S> */ B(Return),
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B(LdaUndefined),
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/* 54 S> */ B(Return),
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]
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constant pool: [
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Smi [22],
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Smi [173],
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Smi [10],
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Smi [7],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["g"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
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Smi [11],
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Smi [29],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["throw"],
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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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