#include <frame_rebase.h>

Inheritance diagram for dart::compiler::ffi::FrameRebase:

Public Member Functions
	FrameRebase (Zone *zone, const Register old_base, const Register new_base, intptr_t stack_delta_in_bytes)

const NativeLocation &	Rebase (const NativeLocation &loc) const

Location	Rebase (const Location loc) const

Public Member Functions inherited from dart::ValueObject
	ValueObject ()

	~ValueObject ()

Detailed Description

Definition at line 32 of file frame_rebase.h.

Constructor & Destructor Documentation

◆ FrameRebase()

dart::compiler::ffi::FrameRebase::FrameRebase	(	Zone *	zone,
		const Register	old_base,
		const Register	new_base,
		intptr_t	stack_delta_in_bytes
	)

inline

Definition at line 34 of file frame_rebase.h.

      : zone_(zone),
        old_base_(old_base),
        new_base_(new_base),
        stack_delta_in_bytes_(stack_delta_in_bytes) {}

Member Function Documentation

◆ Rebase() [1/2]

Location dart::compiler::ffi::FrameRebase::Rebase ( const Location loc ) const

Definition at line 23 of file frame_rebase.cc.

                                                     {
  if (loc.IsPairLocation()) {
    return Location::Pair(Rebase(loc.Component(0)), Rebase(loc.Component(1)));
  }
  if (!loc.HasStackIndex() || loc.base_reg() != old_base_) {
    return loc;
  }
 
  const intptr_t new_stack_index =
      loc.stack_index() + stack_delta_in_bytes_ / compiler::target::kWordSize;
  if (loc.IsStackSlot()) {
    return Location::StackSlot(new_stack_index, new_base_);
  }
  if (loc.IsDoubleStackSlot()) {
    return Location::DoubleStackSlot(new_stack_index, new_base_);
  }
  ASSERT(loc.IsQuadStackSlot());
  return Location::QuadStackSlot(new_stack_index, new_base_);
}

◆ Rebase() [2/2]

const NativeLocation & dart::compiler::ffi::FrameRebase::Rebase ( const NativeLocation & loc ) const

Definition at line 13 of file frame_rebase.cc.

                                                                         {
  if (!loc.IsStack() || loc.AsStack().base_register() != old_base_) {
    return loc;
  }
 
  return *new (zone_) NativeStackLocation(
      loc.payload_type(), loc.container_type(), new_base_,
      loc.AsStack().offset_in_bytes() + stack_delta_in_bytes_);
}

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