dart::compiler::target Namespace Reference

Functions
bool	IsSmi (int64_t v)
bool	WillAllocateNewOrRememberedObject (intptr_t instance_size)
bool	WillAllocateNewOrRememberedContext (intptr_t num_context_variables)
bool	WillAllocateNewOrRememberedArray (intptr_t length)
static word	TranslateOffsetInWordsToHost (word offset)
bool	SizeFitsInSizeTag (uword instance_size)
uword	MakeTagWordForNewSpaceObject (classid_t cid, uword instance_size)
bool	IsTypedDataClassId (intptr_t cid)
static word	TranslateOffsetInWords (word offset)
static uword	GetInstanceSizeImpl (const dart::Class &handle)
	JIT_OFFSETS_LIST (DEFINE_JIT_FIELD, DEFINE_JIT_ARRAY, DEFINE_JIT_SIZEOF, DEFINE_ARRAY_SIZEOF, DEFINE_PAYLOAD_SIZEOF, DEFINE_JIT_RANGE, DEFINE_CONSTANT) AOT_OFFSETS_LIST(DEFINE_AOT_FIELD
static DART_FORCE_INLINE bool	BareInstructionsPayloads ()
bool	CanLoadFromThread (const dart::Object &object, intptr_t *offset)
bool	IsSmi (const dart::Object &a)
word	ToRawSmi (const dart::Object &a)
word	ToRawSmi (intptr_t value)
word	SmiValue (const dart::Object &a)
bool	IsDouble (const dart::Object &a)
double	DoubleValue (const dart::Object &a)
void	UnboxFieldIfSupported (const dart::Field &field, const dart::AbstractType &type)

Variables
const word	kPageSize = dart::kPageSize
const word	kPageSizeInWords = dart::kPageSize / kWordSize
const word	kPageMask = dart::kPageMask
	DEFINE_AOT_ARRAY
	DEFINE_AOT_SIZEOF
	DEFINE_ARRAY_SIZEOF
	DEFINE_PAYLOAD_SIZEOF
	DEFINE_AOT_RANGE

Function Documentation

BareInstructionsPayloads()

static DART_FORCE_INLINE bool dart::compiler::target::BareInstructionsPayloads ( )

static

Definition at line 868 of file runtime_api.cc.

                                                         {
  return FLAG_precompiled_mode;
}

CanLoadFromThread()

bool dart::compiler::target::CanLoadFromThread	(	const dart::Object &	object,
		intptr_t *	offset
	)

Definition at line 940 of file runtime_api.cc.

                                           {
  if (dart::Thread::CanLoadFromThread(object)) {
    if (offset != nullptr) {
      *offset = Thread::OffsetFromThread(object);
    }
    return true;
  }
  return false;
}

DoubleValue()

double dart::compiler::target::DoubleValue

(

const dart::Object &

a

)

Definition at line 977 of file runtime_api.cc.

                                        {
  RELEASE_ASSERT(IsDouble(a));
  return dart::Double::Cast(a).value();
}

GetInstanceSizeImpl()

static uword dart::compiler::target::GetInstanceSizeImpl ( const dart::Class &  handle )

static

Definition at line 449 of file runtime_api.cc.

                                                          {
  switch (handle.id()) {
    case kMintCid:
      return Mint::InstanceSize();
    case kDoubleCid:
      return Double::InstanceSize();
    case kInt32x4Cid:
      return Int32x4::InstanceSize();
    case kFloat32x4Cid:
      return Float32x4::InstanceSize();
    case kFloat64x2Cid:
      return Float64x2::InstanceSize();
    case kObjectCid:
      return Object::InstanceSize();
    case kInstanceCid:
      return Instance::InstanceSize();
    case kGrowableObjectArrayCid:
      return GrowableObjectArray::InstanceSize();
    case kClosureCid:
      return Closure::InstanceSize();
    case kTypedDataBaseCid:
      return TypedDataBase::InstanceSize();
    case kMapCid:
      return Map::InstanceSize();
    case kSetCid:
      return Set::InstanceSize();
    case kUnhandledExceptionCid:
      return UnhandledException::InstanceSize();
    case kWeakPropertyCid:
      return WeakProperty::InstanceSize();
    case kWeakReferenceCid:
      return WeakReference::InstanceSize();
    case kFinalizerCid:
      return Finalizer::InstanceSize();
    case kFinalizerEntryCid:
      return FinalizerEntry::InstanceSize();
    case kNativeFinalizerCid:
      return NativeFinalizer::InstanceSize();
    case kByteBufferCid:
    case kByteDataViewCid:
    case kUnmodifiableByteDataViewCid:
    case kPointerCid:
    case kDynamicLibraryCid:
#define HANDLE_CASE(clazz) case kFfi##clazz##Cid:
      CLASS_LIST_FFI_TYPE_MARKER(HANDLE_CASE)
#undef HANDLE_CASE
#define HANDLE_CASE(clazz)                                                     \
  case kTypedData##clazz##Cid:                                                 \
  case kTypedData##clazz##ViewCid:                                             \
  case kExternalTypedData##clazz##Cid:                                         \
  case kUnmodifiableTypedData##clazz##ViewCid:
      CLASS_LIST_TYPED_DATA(HANDLE_CASE)
#undef HANDLE_CASE
      return handle.target_instance_size();
    default:
      if (handle.id() >= kNumPredefinedCids) {
        return handle.target_instance_size();
      }
  }
  FATAL("Unsupported class for size translation: %s (id=%" Pd
        ", kNumPredefinedCids=%" Pd ")\n",
        handle.ToCString(), handle.id(), kNumPredefinedCids);
  return -1;
}

IsDouble()

bool dart::compiler::target::IsDouble

(

const dart::Object &

a

)

Definition at line 973 of file runtime_api.cc.

                                   {
  return a.IsDouble();
}

IsSmi() [1/2]

bool dart::compiler::target::IsSmi

(

const dart::Object &

a

)

Definition at line 955 of file runtime_api.cc.

                                {
  return a.IsSmi() && IsSmi(dart::Smi::Cast(a).Value());
}

IsSmi() [2/2]

bool dart::compiler::target::IsSmi

(

int64_t

v

)

Definition at line 31 of file runtime_api.cc.

                      {
  return Utils::IsInt(kSmiBits + 1, v);
}

IsTypedDataClassId()

bool dart::compiler::target::IsTypedDataClassId

(

intptr_t

cid

)

Definition at line 434 of file runtime_api.cc.

                                      {
  return dart::IsTypedDataClassId(cid);
}

JIT_OFFSETS_LIST()

dart::compiler::target::JIT_OFFSETS_LIST	(	DEFINE_JIT_FIELD	,
		DEFINE_JIT_ARRAY	,
		DEFINE_JIT_SIZEOF	,
		DEFINE_ARRAY_SIZEOF	,
		DEFINE_PAYLOAD_SIZEOF	,
		DEFINE_JIT_RANGE	,
		DEFINE_CONSTANT
	)

MakeTagWordForNewSpaceObject()

uword dart::compiler::target::MakeTagWordForNewSpaceObject	(	classid_t	cid,
		uword	instance_size
	)

Definition at line 360 of file runtime_api.cc.

                                                                       {
  return dart::UntaggedObject::SizeTag::encode(
             TranslateOffsetInWordsToHost(instance_size)) |
         dart::UntaggedObject::ClassIdTag::encode(cid) |
         dart::UntaggedObject::NewBit::encode(true) |
         dart::UntaggedObject::AlwaysSetBit::encode(true) |
         dart::UntaggedObject::NotMarkedBit::encode(true) |
         dart::UntaggedObject::ImmutableBit::encode(
             dart::Object::ShouldHaveImmutabilityBitSet(cid));
}

SizeFitsInSizeTag()

bool dart::compiler::target::SizeFitsInSizeTag

(

uword

instance_size

)

Definition at line 355 of file runtime_api.cc.

                                            {
  return dart::UntaggedObject::SizeTag::SizeFits(
      TranslateOffsetInWordsToHost(instance_size));
}

SmiValue()

word dart::compiler::target::SmiValue

(

const dart::Object &

a

)

Definition at line 968 of file runtime_api.cc.

                                   {
  RELEASE_ASSERT(IsSmi(a));
  return static_cast<word>(dart::Smi::Cast(a).Value());
}

ToRawSmi() [1/2]

word dart::compiler::target::ToRawSmi

(

const dart::Object &

a

)

Definition at line 959 of file runtime_api.cc.

                                   {
  RELEASE_ASSERT(IsSmi(a));
  return static_cast<compressed_word>(static_cast<intptr_t>(a.ptr()));
}

ToRawSmi() [2/2]

word dart::compiler::target::ToRawSmi

(

intptr_t

value

)

Definition at line 964 of file runtime_api.cc.

                              {
  return dart::Smi::RawValue(value);
}

TranslateOffsetInWords()

static word dart::compiler::target::TranslateOffsetInWords ( word  offset )

static

Definition at line 444 of file runtime_api.cc.

                                                {
  RELEASE_ASSERT((offset % dart::kWordSize) == 0);
  return (offset / dart::kWordSize) * kWordSize;
}

TranslateOffsetInWordsToHost()

static word dart::compiler::target::TranslateOffsetInWordsToHost ( word  offset )

static

Definition at line 350 of file runtime_api.cc.

                                                      {
  RELEASE_ASSERT((offset % kCompressedWordSize) == 0);
  return (offset / kCompressedWordSize) * dart::kCompressedWordSize;
}

UnboxFieldIfSupported()

void dart::compiler::target::UnboxFieldIfSupported	(	const dart::Field &	field,
		const dart::AbstractType &	type
	)

Definition at line 1081 of file runtime_api.cc.

                                                         {
  if (field.is_static() || field.is_late()) {
    return;
  }
 
  if (type.IsNullable()) {
    return;
  }
 
  classid_t cid = kIllegalCid;
  if (type.IsDoubleType()) {
    if (FlowGraphCompiler::SupportsUnboxedDoubles()) {
      cid = kDoubleCid;
    }
  } else if (type.IsFloat32x4Type()) {
    if (FlowGraphCompiler::SupportsUnboxedSimd128()) {
      cid = kFloat32x4Cid;
    }
  } else if (type.IsFloat64x2Type()) {
    if (FlowGraphCompiler::SupportsUnboxedSimd128()) {
      cid = kFloat64x2Cid;
    }
  }
 
  if (cid != kIllegalCid) {
    field.set_guarded_cid(cid);
    field.set_is_nullable(false);
    field.set_is_unboxed(true);
    field.set_guarded_list_length(dart::Field::kNoFixedLength);
    field.set_guarded_list_length_in_object_offset(
        dart::Field::kUnknownLengthOffset);
  }
}

WillAllocateNewOrRememberedArray()

bool dart::compiler::target::WillAllocateNewOrRememberedArray

(

intptr_t

length

)

Definition at line 46 of file runtime_api.cc.

                                                       {
  if (!dart::Array::IsValidLength(length)) return false;
  return !dart::Array::UseCardMarkingForAllocation(length);
}

WillAllocateNewOrRememberedContext()

bool dart::compiler::target::WillAllocateNewOrRememberedContext

(

intptr_t

num_context_variables

)

Definition at line 40 of file runtime_api.cc.

                                                                        {
  if (!dart::Context::IsValidLength(num_context_variables)) return false;
  return dart::IsAllocatableInNewSpace(
      dart::Context::InstanceSize(num_context_variables));
}

WillAllocateNewOrRememberedObject()

bool dart::compiler::target::WillAllocateNewOrRememberedObject

(

intptr_t

instance_size

)

Definition at line 35 of file runtime_api.cc.

                                                               {
  ASSERT(Utils::IsAligned(instance_size, ObjectAlignment::kObjectAlignment));
  return dart::IsAllocatableInNewSpace(instance_size);
}

Variable Documentation

DEFINE_AOT_ARRAY

dart::compiler::target::DEFINE_AOT_ARRAY

Definition at line 799 of file runtime_api.cc.

DEFINE_AOT_RANGE

dart::compiler::target::DEFINE_AOT_RANGE

Definition at line 803 of file runtime_api.cc.

DEFINE_AOT_SIZEOF

dart::compiler::target::DEFINE_AOT_SIZEOF

Definition at line 800 of file runtime_api.cc.

DEFINE_ARRAY_SIZEOF

dart::compiler::target::DEFINE_ARRAY_SIZEOF

Definition at line 801 of file runtime_api.cc.

DEFINE_PAYLOAD_SIZEOF

dart::compiler::target::DEFINE_PAYLOAD_SIZEOF

Definition at line 802 of file runtime_api.cc.

kPageMask

const word dart::compiler::target::kPageMask = dart::kPageMask

Definition at line 348 of file runtime_api.cc.

kPageSize

const word dart::compiler::target::kPageSize = dart::kPageSize

Definition at line 346 of file runtime_api.cc.

kPageSizeInWords

const word dart::compiler::target::kPageSizeInWords = dart::kPageSize / kWordSize

Definition at line 347 of file runtime_api.cc.