dart::NativeEntryInstr Class Reference

#include <il.h>

Inheritance diagram for dart::NativeEntryInstr:

Public Member Functions
	NativeEntryInstr (const compiler::ffi::CallbackMarshaller &marshaller, GraphEntryInstr *graph_entry, intptr_t block_id, intptr_t try_index, intptr_t deopt_id)
DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS(NativeEntryInstr, FunctionEntryInstr, FIELD_LIST) private void	SaveArgument (FlowGraphCompiler *compiler, const compiler::ffi::NativeLocation &loc) const
Public Member Functions inherited from dart::FunctionEntryInstr
	FunctionEntryInstr (GraphEntryInstr *graph_entry, intptr_t block_id, intptr_t try_index, intptr_t deopt_id)
virtual intptr_t	PredecessorCount () const
virtual BlockEntryInstr *	PredecessorAt (intptr_t index) const
GraphEntryInstr *	graph_entry () const
Public Member Functions inherited from dart::BlockEntryWithInitialDefs
	BlockEntryWithInitialDefs (intptr_t block_id, intptr_t try_index, intptr_t deopt_id, intptr_t stack_depth)
GrowableArray< Definition * > *	initial_definitions ()
const GrowableArray< Definition * > *	initial_definitions () const
virtual BlockEntryWithInitialDefs *	AsBlockEntryWithInitialDefs ()
virtual const BlockEntryWithInitialDefs *	AsBlockEntryWithInitialDefs () const
Public Member Functions inherited from dart::BlockEntryInstr
intptr_t	preorder_number () const
void	set_preorder_number (intptr_t number)
intptr_t	postorder_number () const
void	set_postorder_number (intptr_t number)
intptr_t	block_id () const
void	set_start_pos (intptr_t pos)
intptr_t	start_pos () const
void	set_end_pos (intptr_t pos)
intptr_t	end_pos () const
BlockEntryInstr *	dominator () const
BlockEntryInstr *	ImmediateDominator () const
const GrowableArray< BlockEntryInstr * > &	dominated_blocks ()
void	AddDominatedBlock (BlockEntryInstr *block)
void	ClearDominatedBlocks ()
bool	Dominates (BlockEntryInstr *other) const
Instruction *	last_instruction () const
void	set_last_instruction (Instruction *instr)
ParallelMoveInstr *	parallel_move () const
bool	HasParallelMove () const
bool	HasNonRedundantParallelMove () const
ParallelMoveInstr *	GetParallelMove ()
bool	DiscoverBlock (BlockEntryInstr *predecessor, GrowableArray< BlockEntryInstr * > *preorder, GrowableArray< intptr_t > *parent)
virtual bool	CanBecomeDeoptimizationTarget () const
virtual bool	ComputeCanDeoptimize () const
virtual bool	HasUnknownSideEffects () const
intptr_t	try_index () const
void	set_try_index (intptr_t index)
bool	InsideTryBlock () const
LoopInfo *	loop_info () const
void	set_loop_info (LoopInfo *loop_info)
bool	IsLoopHeader () const
intptr_t	NestingDepth () const
virtual BlockEntryInstr *	GetBlock ()
virtual TokenPosition	token_pos () const
void	ReplaceAsPredecessorWith (BlockEntryInstr *new_block)
void	set_block_id (intptr_t block_id)
intptr_t	stack_depth () const
void	set_stack_depth (intptr_t s)
void	ClearAllInstructions ()
InstructionsIterable	instructions ()
Public Member Functions inherited from dart::TemplateInstruction< 0, NoThrow >
	TemplateInstruction (intptr_t deopt_id=DeoptId::kNone)
	TemplateInstruction (const InstructionSource &source, intptr_t deopt_id=DeoptId::kNone)
virtual intptr_t	InputCount () const
virtual Value *	InputAt (intptr_t i) const
virtual bool	MayThrow () const

Additional Inherited Members
Public Types inherited from dart::TemplateInstruction< 0, NoThrow >
using	BaseClass = typename NoCSE< Instruction, PureInstruction >::Base
Protected Member Functions inherited from dart::BlockEntryWithInitialDefs
void	PrintInitialDefinitionsTo (BaseTextBuffer *f) const
Protected Member Functions inherited from dart::BlockEntryInstr
	BlockEntryInstr (intptr_t block_id, intptr_t try_index, intptr_t deopt_id, intptr_t stack_depth)
bool	FindOsrEntryAndRelink (GraphEntryInstr *graph_entry, Instruction *parent, BitVector *block_marks)
Protected Attributes inherited from dart::TemplateInstruction< 0, NoThrow >
EmbeddedArray< Value *, N >	inputs_

Detailed Description

Definition at line 2218 of file il.h.

Constructor & Destructor Documentation

NativeEntryInstr()

dart::NativeEntryInstr::NativeEntryInstr ( const compiler::ffi::CallbackMarshaller &  marshaller, GraphEntryInstr *  graph_entry, intptr_t  block_id, intptr_t  try_index, intptr_t  deopt_id  )

inline

Definition at line 2220 of file il.h.

      : FunctionEntryInstr(graph_entry, block_id, try_index, deopt_id),
        marshaller_(marshaller) {}

Member Function Documentation

SaveArgument()

void dart::NativeEntryInstr::SaveArgument	(	FlowGraphCompiler *	compiler,
		const compiler::ffi::NativeLocation &	loc
	)		const

Definition at line 4423 of file il.cc.

                                                 {
  if (nloc.IsStack()) return;
 
  if (nloc.IsRegisters()) {
    const auto& reg_loc = nloc.WidenTo4Bytes(compiler->zone()).AsRegisters();
    const intptr_t num_regs = reg_loc.num_regs();
    // Save higher-order component first, so bytes are in little-endian layout
    // overall.
    for (intptr_t i = num_regs - 1; i >= 0; i--) {
      __ PushRegister(reg_loc.reg_at(i));
    }
  } else if (nloc.IsFpuRegisters()) {
    // TODO(dartbug.com/40469): Reduce code size.
    __ AddImmediate(SPREG, -8);
    NoTemporaryAllocator temp_alloc;
    const auto& dst = compiler::ffi::NativeStackLocation(
        nloc.payload_type(), nloc.payload_type(), SPREG, 0);
    compiler->EmitNativeMove(dst, nloc, &temp_alloc);
  } else if (nloc.IsPointerToMemory()) {
    const auto& pointer_loc = nloc.AsPointerToMemory().pointer_location();
    if (pointer_loc.IsRegisters()) {
      const auto& regs_loc = pointer_loc.AsRegisters();
      ASSERT(regs_loc.num_regs() == 1);
      __ PushRegister(regs_loc.reg_at(0));
    } else {
      ASSERT(pointer_loc.IsStack());
      // It's already on the stack, so we don't have to save it.
    }
  } else if (nloc.IsMultiple()) {
    const auto& multiple = nloc.AsMultiple();
    const intptr_t num = multiple.locations().length();
    // Save the argument registers, in reverse order.
    for (intptr_t i = num; i-- > 0;) {
      SaveArgument(compiler, *multiple.locations().At(i));
    }
  } else {
    ASSERT(nloc.IsBoth());
    const auto& both = nloc.AsBoth();
    SaveArgument(compiler, both.location(0));
  }
}

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The documentation for this class was generated from the following files:

• third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.h
• third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.cc