Alexander Markov
51d1c8923a
This is a reland of commit 88496ba1c3
Fixes on top of the original change:
* Closure layout is changed to avoid gap between fixed fields and
variable-length elements on compressed pointers architecture.
This gap was causing crashes in the GC when scanning closure
objects.
* pkg/vm_snapshot_analysis/test/instruction_sizes_test is fixed
on arm64 by decreasing threshold for detecting size changes.
Original change's description:
> [vm,dart2bytecode,modular_aot] Variable-length closure objects
>
> Extend closure objects with variable number of elements to capture.
> This is needed to support capturing multiple independent contexts
> after capturing is computed in the front-end.
>
> The following fixed Closure fields are moved into variable-length
> elements:
> - delayed type arguments;
> - instantiator type arguments;
> - function type arguments;
> - context.
>
> Number of elements and presence/indices of various type arguments
> are encoded into the new length_and_flags field in the Closure.
>
> Most closure objects don't need any of the type arguments so this
> change will reduce average Closure object size.
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/61572
Issue: https://github.com/dart-lang/sdk/issues/61635
Change-Id: I8685e632e2d0832766ecdc470f3cf9a6b880de48
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/494243
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
201 lines
15 KiB
C++
201 lines
15 KiB
C++
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_VM_STUB_CODE_LIST_H_
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#define RUNTIME_VM_STUB_CODE_LIST_H_
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namespace dart {
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#define VM_TYPE_TESTING_STUB_CODE_LIST(V) \
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V(DefaultTypeTest) \
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V(DefaultNullableTypeTest) \
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V(TopTypeTypeTest) \
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V(UnreachableTypeTest) \
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V(TypeParameterTypeTest) \
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V(NullableTypeParameterTypeTest) \
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V(SlowTypeTest) \
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V(LazySpecializeTypeTest) \
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V(LazySpecializeNullableTypeTest)
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#if (defined(DART_TARGET_OS_LINUX) || defined(DART_TARGET_OS_ANDROID)) && \
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(defined(TARGET_ARCH_X64) || defined(TARGET_ARCH_ARM64))
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// Currently we support probe points only Linux and Android (X64 and ARM64).
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#define DART_TARGET_SUPPORTS_PROBE_POINTS 1
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#endif
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#define PROBE_POINT_STUBS_LIST(V) V(AllocationProbePoint)
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// List of stubs created in the VM isolate, these stubs are shared by different
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// isolates running in this dart process.
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#define VM_STUB_CODE_LIST(V) \
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V(JumpToFrame) \
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V(RunExceptionHandler) \
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V(RunExceptionHandlerUnbox) \
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V(DeoptForRewind) \
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V(WriteBarrier) \
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V(WriteBarrierWrappers) \
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V(ArrayWriteBarrier) \
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PROBE_POINT_STUBS_LIST(V) \
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V(AllocateArray) \
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V(AllocateMint) \
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V(AllocateDouble) \
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V(AllocateFloat32x4) \
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V(AllocateFloat64x2) \
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V(AllocateInt32x4) \
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V(AllocateInt8Array) \
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V(AllocateUint8Array) \
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V(AllocateUint8ClampedArray) \
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V(AllocateInt16Array) \
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V(AllocateUint16Array) \
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V(AllocateInt32Array) \
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V(AllocateUint32Array) \
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V(AllocateInt64Array) \
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V(AllocateUint64Array) \
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V(AllocateFloat32Array) \
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V(AllocateFloat64Array) \
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V(AllocateFloat32x4Array) \
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V(AllocateInt32x4Array) \
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V(AllocateFloat64x2Array) \
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V(AllocateMintSharedWithFPURegs) \
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V(AllocateMintSharedWithoutFPURegs) \
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V(AllocateClosure1) \
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V(AllocateClosure2) \
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V(AllocateClosure3) \
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V(AllocateClosure4) \
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V(AllocateContext) \
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V(AllocateGrowableArray) \
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V(AllocateObject) \
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V(AllocateObjectParameterized) \
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V(AllocateObjectSlow) \
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V(AllocateRecord) \
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V(AllocateRecord2) \
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V(AllocateRecord2Named) \
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V(AllocateRecord3) \
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V(AllocateRecord3Named) \
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V(AllocateUnhandledException) \
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V(BoxDouble) \
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V(BoxFloat32x4) \
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V(BoxFloat64x2) \
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V(CloneContext) \
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V(CallToRuntime) \
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V(LazyCompile) \
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V(InterpretCall) \
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V(ResumeInterpreter) \
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V(CallBootstrapNative) \
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V(CallNoScopeNative) \
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V(CallAutoScopeNative) \
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V(FixCallersTarget) \
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V(CallStaticFunction) \
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V(OptimizeFunction) \
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V(InvokeDartCode) \
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V(InvokeDartCodeFromBytecode) \
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V(DebugStepCheck) \
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V(SwitchableCallMiss) \
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V(MonomorphicSmiableCheck) \
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V(SingleTargetCall) \
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V(ICCallThroughCode) \
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V(MegamorphicCall) \
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V(FixAllocationStubTarget) \
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V(FixParameterizedAllocationStubTarget) \
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V(Deoptimize) \
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V(DeoptimizeLazyFromReturn) \
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V(DeoptimizeLazyFromThrow) \
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V(UnoptimizedIdenticalWithNumberCheck) \
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V(OptimizedIdenticalWithNumberCheck) \
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V(ICCallBreakpoint) \
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V(UnoptStaticCallBreakpoint) \
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V(RuntimeCallBreakpoint) \
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V(OneArgCheckInlineCache) \
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V(TwoArgsCheckInlineCache) \
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V(SmiAddInlineCache) \
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V(SmiLessInlineCache) \
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V(SmiEqualInlineCache) \
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V(OneArgOptimizedCheckInlineCache) \
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V(TwoArgsOptimizedCheckInlineCache) \
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V(ZeroArgsUnoptimizedStaticCall) \
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V(OneArgUnoptimizedStaticCall) \
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V(TwoArgsUnoptimizedStaticCall) \
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V(AssertSubtype) \
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V(AssertAssignable) \
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V(TypeIsTopTypeForSubtyping) \
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V(NullIsAssignableToType) \
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V(Subtype1TestCache) \
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V(Subtype2TestCache) \
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V(Subtype3TestCache) \
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V(Subtype4TestCache) \
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V(Subtype6TestCache) \
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V(Subtype7TestCache) \
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VM_TYPE_TESTING_STUB_CODE_LIST(V) \
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V(CallClosureNoSuchMethod) \
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V(FrameAwaitingMaterialization) \
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V(AsynchronousGapMarker) \
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V(NotLoaded) \
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V(DispatchTableNullError) \
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V(LateInitializationErrorSharedWithFPURegs) \
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V(LateInitializationErrorSharedWithoutFPURegs) \
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V(NullErrorSharedWithFPURegs) \
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V(NullErrorSharedWithoutFPURegs) \
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V(NullArgErrorSharedWithFPURegs) \
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V(NullArgErrorSharedWithoutFPURegs) \
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V(NullCastErrorSharedWithFPURegs) \
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V(NullCastErrorSharedWithoutFPURegs) \
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V(RangeErrorSharedWithFPURegs) \
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V(RangeErrorSharedWithoutFPURegs) \
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V(WriteErrorSharedWithFPURegs) \
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V(WriteErrorSharedWithoutFPURegs) \
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V(FieldAccessErrorSharedWithFPURegs) \
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V(FieldAccessErrorSharedWithoutFPURegs) \
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V(StackOverflowSharedWithFPURegs) \
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V(StackOverflowSharedWithoutFPURegs) \
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V(DoubleToInteger) \
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V(OneArgCheckInlineCacheWithExactnessCheck) \
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V(OneArgOptimizedCheckInlineCacheWithExactnessCheck) \
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V(EnterSafepoint) \
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V(ExitSafepoint) \
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V(CallNativeThroughSafepoint) \
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V(FfiCallTrampoline) \
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V(FfiCallbackTrampoline) \
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V(InitStaticField) \
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V(InitLateStaticField) \
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V(InitLateFinalStaticField) \
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V(InitInstanceField) \
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V(InitLateInstanceField) \
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V(InitLateFinalInstanceField) \
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V(InitSharedLateStaticField) \
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V(Throw) \
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V(ReThrow) \
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V(InstanceOf) \
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V(InstantiateType) \
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V(InstantiateTypeNonNullableClassTypeParameter) \
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V(InstantiateTypeNullableClassTypeParameter) \
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V(InstantiateTypeNonNullableFunctionTypeParameter) \
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V(InstantiateTypeNullableFunctionTypeParameter) \
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V(InstantiateTypeArguments) \
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V(InstantiateTypeArgumentsMayShareInstantiatorTA) \
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V(InstantiateTypeArgumentsMayShareFunctionTA) \
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V(NoSuchMethodDispatcher) \
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V(Await) \
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V(AwaitWithTypeCheck) \
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V(InitAsync) \
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V(Resume) \
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V(ReturnAsync) \
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V(ReturnAsyncNotFuture) \
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V(InitAsyncStar) \
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V(YieldAsyncStar) \
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V(ReturnAsyncStar) \
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V(InitSyncStar) \
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V(SuspendSyncStarAtStart) \
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V(SuspendSyncStarAtYield) \
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V(AsyncExceptionHandler) \
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V(CloneSuspendState) \
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V(FfiAsyncCallbackSend) \
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V(CheckIsolateFieldAccess) \
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V(CheckedStoreIntoShared) \
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V(EnsureDeeplyImmutable) \
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V(UnknownDartCode)
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} // namespace dart
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#endif // RUNTIME_VM_STUB_CODE_LIST_H_
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