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sdk/runtime/vm/stub_code_list.h
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Tess Strickland 37d45743e1 [vm] Avoid calling runtime when lazily initializing late static fields. 
This CL changes the handling of late static fields to be similar to the
handling of late instance fields. That is, if the field does not need a
load guard and has an initializer, the new InitLateStaticField and
InitLateFinalStaticField stubs are used, which directly call the
initializer function instead of going to the runtime. Thus, the only
runtime call left in these cases is when a late final static field is
modified by the initializer function, in which case an appropiate
exception is thrown.

In the case where a late static field might call the initializer
function but no initializer exists, a LateInitializationErrorSlowPath is
generated to be called if the field value is the sentinel, also similar
to the late instance field case.

TEST=Refactoring, so existing tests.

Change-Id: I95887022d8ece1164a8f7c34b77d9de8c53aa898
Bug: https://github.com/dart-lang/sdk/issues/45138
Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-linux-release-ia32-try,vm-kernel-linux-release-x64-try,vm-kernel-nnbd-linux-release-ia32-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm_x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/220009
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-12-01 08:51:49 +00:00

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// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_VM_STUB_CODE_LIST_H_
#define RUNTIME_VM_STUB_CODE_LIST_H_
namespace dart {
#define VM_TYPE_TESTING_STUB_CODE_LIST(V) \
V(DefaultTypeTest) \
V(DefaultNullableTypeTest) \
V(TopTypeTypeTest) \
V(UnreachableTypeTest) \
V(TypeParameterTypeTest) \
V(NullableTypeParameterTypeTest) \
V(SlowTypeTest) \
V(LazySpecializeTypeTest) \
V(LazySpecializeNullableTypeTest)
// List of stubs created in the VM isolate, these stubs are shared by different
// isolates running in this dart process.
#define VM_STUB_CODE_LIST(V) \
V(GetCStackPointer) \
V(JumpToFrame) \
V(RunExceptionHandler) \
V(DeoptForRewind) \
V(WriteBarrier) \
V(WriteBarrierWrappers) \
V(ArrayWriteBarrier) \
V(AllocateArray) \
V(AllocateMint) \
V(AllocateDouble) \
V(AllocateFloat32x4) \
V(AllocateFloat64x2) \
V(AllocateInt32x4) \
V(AllocateInt8Array) \
V(AllocateUint8Array) \
V(AllocateUint8ClampedArray) \
V(AllocateInt16Array) \
V(AllocateUint16Array) \
V(AllocateInt32Array) \
V(AllocateUint32Array) \
V(AllocateInt64Array) \
V(AllocateUint64Array) \
V(AllocateFloat32Array) \
V(AllocateFloat64Array) \
V(AllocateFloat32x4Array) \
V(AllocateInt32x4Array) \
V(AllocateFloat64x2Array) \
V(AllocateMintSharedWithFPURegs) \
V(AllocateMintSharedWithoutFPURegs) \
V(AllocateClosure) \
V(AllocateContext) \
V(AllocateObject) \
V(AllocateObjectParameterized) \
V(AllocateObjectSlow) \
V(AllocateUnhandledException) \
V(BoxDouble) \
V(CloneContext) \
V(CallToRuntime) \
V(LazyCompile) \
V(CallBootstrapNative) \
V(CallNoScopeNative) \
V(CallAutoScopeNative) \
V(FixCallersTarget) \
V(CallStaticFunction) \
V(OptimizeFunction) \
V(InvokeDartCode) \
V(DebugStepCheck) \
V(SwitchableCallMiss) \
V(MonomorphicSmiableCheck) \
V(SingleTargetCall) \
V(ICCallThroughCode) \
V(MegamorphicCall) \
V(FixAllocationStubTarget) \
V(Deoptimize) \
V(DeoptimizeLazyFromReturn) \
V(DeoptimizeLazyFromThrow) \
V(UnoptimizedIdenticalWithNumberCheck) \
V(OptimizedIdenticalWithNumberCheck) \
V(ICCallBreakpoint) \
V(UnoptStaticCallBreakpoint) \
V(RuntimeCallBreakpoint) \
V(OneArgCheckInlineCache) \
V(TwoArgsCheckInlineCache) \
V(SmiAddInlineCache) \
V(SmiLessInlineCache) \
V(SmiEqualInlineCache) \
V(OneArgOptimizedCheckInlineCache) \
V(TwoArgsOptimizedCheckInlineCache) \
V(ZeroArgsUnoptimizedStaticCall) \
V(OneArgUnoptimizedStaticCall) \
V(TwoArgsUnoptimizedStaticCall) \
V(AssertSubtype) \
V(AssertAssignable) \
V(TypeIsTopTypeForSubtyping) \
V(TypeIsTopTypeForSubtypingNullSafe) \
V(NullIsAssignableToType) \
V(NullIsAssignableToTypeNullSafe) \
V(Subtype1TestCache) \
V(Subtype3TestCache) \
V(Subtype5TestCache) \
V(Subtype7TestCache) \
VM_TYPE_TESTING_STUB_CODE_LIST(V) \
V(CallClosureNoSuchMethod) \
V(FrameAwaitingMaterialization) \
V(AsynchronousGapMarker) \
V(NotLoaded) \
V(DispatchTableNullError) \
V(LateInitializationErrorSharedWithFPURegs) \
V(LateInitializationErrorSharedWithoutFPURegs) \
V(NullErrorSharedWithFPURegs) \
V(NullErrorSharedWithoutFPURegs) \
V(NullArgErrorSharedWithFPURegs) \
V(NullArgErrorSharedWithoutFPURegs) \
V(NullCastErrorSharedWithFPURegs) \
V(NullCastErrorSharedWithoutFPURegs) \
V(RangeErrorSharedWithFPURegs) \
V(RangeErrorSharedWithoutFPURegs) \
V(StackOverflowSharedWithFPURegs) \
V(StackOverflowSharedWithoutFPURegs) \
V(DoubleToInteger) \
V(OneArgCheckInlineCacheWithExactnessCheck) \
V(OneArgOptimizedCheckInlineCacheWithExactnessCheck) \
V(EnterSafepoint) \
V(ExitSafepoint) \
V(CallNativeThroughSafepoint) \
V(InitStaticField) \
V(InitLateStaticField) \
V(InitLateFinalStaticField) \
V(InitInstanceField) \
V(InitLateInstanceField) \
V(InitLateFinalInstanceField) \
V(Throw) \
V(ReThrow) \
V(AssertBoolean) \
V(InstanceOf) \
V(InstantiateType) \
V(InstantiateTypeArguments) \
V(InstantiateTypeArgumentsMayShareInstantiatorTA) \
V(InstantiateTypeArgumentsMayShareFunctionTA) \
V(NoSuchMethodDispatcher) \
V(UnknownDartCode)
} // namespace dart
#endif // RUNTIME_VM_STUB_CODE_LIST_H_
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