lestes::backend_v2::workers::memory_inliner Class Reference

Performs inlining of memory operands. More...

#include <memory_inliner.g.hh>

Inheritance diagram for lestes::backend_v2::workers::memory_inliner:

List of all members.

Public Member Functions
void	process ()
	Performs inlining of memory operands.
ptr< ::lestes::backend_v2::structs::func_data >	get_result ()
	Returns data of the currently processed function with immediates inlined whereever possible.
bool	find_compatible_version (ptr< ::lestes::backend_v2::intercode::ge_pi > ge)
virtual ptr< reflection_list >	reflection_get () const
	for purposes of dumping
virtual ptr< field_list_list >	field_values_get () const
	for purposes of dumping
Static Public Member Functions
static ptr< memory_inliner >	create (ptr< ::lestes::backend_v2::structs::func_data > a__worker_base__data)
	First generated factory method for class memory_inliner.
Protected Member Functions
	memory_inliner (ptr< ::lestes::backend_v2::structs::func_data > a__worker_base__data)
	Generated constructor for class memory_inliner.
virtual void	gc_mark ()
	Marking routine for class memory_inliner.
Static Private Attributes
static ptr< reflection_list >	reflection = reflection

---

Detailed Description

Performs inlining of memory operands.

Definition at line 40 of file memory_inliner.g.hh.

---

Constructor & Destructor Documentation

lestes::backend_v2::workers::memory_inliner::memory_inliner

(

ptr< ::lestes::backend_v2::structs::func_data >

a__worker_base__data

)

[protected]

Generated constructor for class memory_inliner.

Generated constructor for class memory_inliner.

Author:

lsg

Definition at line 37 of file memory_inliner.g.cc.

Referenced by create().

        : worker_base(a__worker_base__data)
{}

---

Member Function Documentation

void lestes::backend_v2::workers::memory_inliner::process

(

)

[virtual]

Performs inlining of memory operands.

Implements lestes::backend_v2::workers::worker_base.

Definition at line 27 of file memory_inliner.cc.

References lestes::backend_v2::workers::worker_base::data_get(), and find_compatible_version().

                             {
        
        ptr<reg2mem__type> reg2mem = reg2mem__type::create();
        
        ptr<ge_pi_list__type> body = data_get()->ge_body_get(); 

        for(ge_pi_list__type::iterator it = body->begin(); it!=body->end(); ++it) {
                ptr<ge_pi> ge = *it;
                ptr<tm_instr_base> tm = ge->instruction_get();
                
                if ( !tm ) {
                        continue;
                }
                
                if ( tm->is_load() 
                        && ge->operands_input_get()->front()->kind_get()==ge_operand::MEMORY
                        && ge->operands_output_get()->front()->kind_get()==ge_operand::REGISTER ) {
                                //The instruction is load instruction that loads memory operand to register.
                                ptr<ge_operand_mem> mem = ge->operands_input_get()->front().dncast<ge_operand_mem>();
                                
                                //Note: Do not inline pi_mf_ptr_deref.
                                if ( mem->factory_get() && mem->factory_get()->kind_get()!=pi_mem_factory::MF_PTR_DEREF ) {
                                        (*reg2mem)[ge->operands_output_get()->front().dncast<ge_operand_reg>()] = mem;
                                }
                } else if ( tm->versions_get() ) {
                        //The instruction has exchangeable tm_instr version available.
                        //Go through input operands and search for a register operand that can be echanged for its immediate source.
                        ptr<ge_op_vector__type> operands = ge->operands_input_get();
                        for(ge_op_vector__type::iterator it_op = operands->begin(); it_op!=operands->end();) {
                                if ( (*it_op)->kind_get()!=ge_operand::REGISTER ) {
                                        ++it_op;
                                        continue;
                                }
                                
                                ptr<ge_operand_reg> reg = (*it_op).dncast<ge_operand_reg>();
                                
                                reg2mem__type::iterator it_mem = reg2mem->find(reg);
                                
                                if ( it_mem==reg2mem->end() ) {
                                        ++it_op;
                                        continue;
                                }
                                
                                //Ok, the immediate source has been found.
                                ptr<ge_operand_mem> mem = it_mem->second;
                                
                                //Exchange immediate after register.
                                *it_op = mem;
                                
                                //Try to find compatible tm_instr version that is compatible with this operand.
                                if ( find_compatible_version(ge) ) {
                                        //Compatible version exists and it has been set to the ge_pi. 
                                        //Remove dependence on the origin of the register (load of immediate).
                                        ge->dependencies_get()->erase(reg->origin_get());
                                        
                                        //Restart search for exchangeable operans.
                                        it_op = operands->begin();
                                } else {
                                        //Restore operands.
                                        *it_op = reg;
                                        ++it_op;
                                }
                        }
                }
        }
}

ptr< func_data > lestes::backend_v2::workers::memory_inliner::get_result

(

)

[virtual]

Returns data of the currently processed function with immediates inlined whereever possible.

Implements lestes::backend_v2::workers::worker_base.

Definition at line 119 of file memory_inliner.cc.

References lestes::backend_v2::workers::worker_base::data_get().

                                          {
        return data_get();
}

bool lestes::backend_v2::workers::memory_inliner::find_compatible_version

(

ptr< ::lestes::backend_v2::intercode::ge_pi >

ge

)

Referenced by process().

ptr< memory_inliner > lestes::backend_v2::workers::memory_inliner::create

(

ptr< ::lestes::backend_v2::structs::func_data >

a__worker_base__data

)

[static]

First generated factory method for class memory_inliner.

This factory method for class memory_inliner takes values of all fields as arguments.

Author:

lsg

Definition at line 28 of file memory_inliner.g.cc.

References memory_inliner().

{
        return ptr< memory_inliner > ( new memory_inliner(a__worker_base__data) );
}

ptr< object::reflection_list > lestes::backend_v2::workers::memory_inliner::reflection_get

(

)

const [virtual]

for purposes of dumping

Reimplemented from lestes::backend_v2::workers::worker_base.

Definition at line 41 of file memory_inliner.g.cc.

References lestes::std::list< T >::create(), reflection, and lestes::backend_v2::workers::worker_base::reflection_get().

{
        if (!reflection) {
                typedef class_reflection::field_metadata md;
                typedef class_reflection::field_metadata_list mdlist;
                ptr<mdlist> mdl = mdlist::create();
                reflection = reflection_list::create( worker_base::reflection_get() );
                reflection->push_back( class_reflection::create( "memory_inliner", mdl ) );
        }
        return reflection;
}

ptr< object::field_list_list > lestes::backend_v2::workers::memory_inliner::field_values_get

(

)

const [virtual]

for purposes of dumping

Reimplemented from lestes::backend_v2::workers::worker_base.

Definition at line 53 of file memory_inliner.g.cc.

References lestes::backend_v2::workers::worker_base::field_values_get().

{
        ptr < field_list_list > result = worker_base::field_values_get();
        return result;
}

void lestes::backend_v2::workers::memory_inliner::gc_mark

(

void

)

[protected, virtual]

Marking routine for class memory_inliner.

Marking routine is used for garbage collection.

Author:

lsg

Reimplemented from lestes::backend_v2::workers::worker_base.

Definition at line 64 of file memory_inliner.g.cc.

References lestes::backend_v2::workers::worker_base::gc_mark().

{
        worker_base::gc_mark();
}

---

Member Data Documentation

ptr< object::reflection_list > lestes::backend_v2::workers::memory_inliner::reflection = reflection [static, private]

Reimplemented from lestes::backend_v2::workers::worker_base.

Definition at line 69 of file memory_inliner.g.hh.

Referenced by reflection_get().

---

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

• memory_inliner.g.hh
• memory_inliner.cc
• memory_inliner.g.cc

---