sysio::vm::bitcode_writer Class Reference

#include <bitcode_writer.hpp>

Classes
struct	br_table_parser

Public Member Functions
	bitcode_writer (growable_allocator &alloc, std::size_t source_bytes, module &mod)
	~bitcode_writer ()
void	emit_unreachable ()
void	emit_nop ()
uint32_t	emit_end ()
uint32_t *	emit_return (uint32_t depth_change)
void	emit_block ()
uint32_t	emit_loop ()
uint32_t *	emit_if ()
uint32_t *	emit_else (uint32_t *if_loc)
uint32_t *	emit_br (uint32_t depth_change)
uint32_t *	emit_br_if (uint32_t depth_change)
auto	emit_br_table (uint32_t table_size)
void	emit_call (const func_type &ft, uint32_t funcnum)
void	emit_call_indirect (const func_type &ft, uint32_t functypeidx)
void	emit_drop ()
void	emit_select ()
void	emit_get_local (uint32_t localidx)
void	emit_set_local (uint32_t localidx)
void	emit_tee_local (uint32_t localidx)
void	emit_get_global (uint32_t localidx)
void	emit_set_global (uint32_t localidx)
void	emit_current_memory ()
void	emit_grow_memory ()
void	emit_i32_const (uint32_t value)
void	emit_i64_const (uint64_t value)
void	emit_f32_const (float value)
void	emit_f64_const (double value)
void	emit_error ()
void	fix_branch (uint32_t *branch, uint32_t target)
void	emit_prologue (const func_type &ft, const guarded_vector< local_entry > &, uint32_t idx)
void	emit_epilogue (const func_type &ft, const guarded_vector< local_entry > &locals, uint32_t idx)
void	finalize (function_body &body)
const void *	get_addr () const
const void *	get_base_addr () const
	bitcode_writer (growable_allocator &alloc, std::size_t source_bytes, module &mod)
	~bitcode_writer ()
void	emit_unreachable ()
void	emit_nop ()
uint32_t	emit_end ()
uint32_t *	emit_return (uint32_t depth_change)
void	emit_block ()
uint32_t	emit_loop ()
uint32_t *	emit_if ()
uint32_t *	emit_else (uint32_t *if_loc)
uint32_t *	emit_br (uint32_t depth_change)
uint32_t *	emit_br_if (uint32_t depth_change)
auto	emit_br_table (uint32_t table_size)
void	emit_call (const func_type &ft, uint32_t funcnum)
void	emit_call_indirect (const func_type &ft, uint32_t functypeidx)
void	emit_drop ()
void	emit_select ()
void	emit_get_local (uint32_t localidx)
void	emit_set_local (uint32_t localidx)
void	emit_tee_local (uint32_t localidx)
void	emit_get_global (uint32_t localidx)
void	emit_set_global (uint32_t localidx)
void	emit_current_memory ()
void	emit_grow_memory ()
void	emit_i32_const (uint32_t value)
void	emit_i64_const (uint64_t value)
void	emit_f32_const (float value)
void	emit_f64_const (double value)
void	emit_error ()
void	fix_branch (uint32_t *branch, uint32_t target)
void	emit_prologue (const func_type &ft, const guarded_vector< local_entry > &, uint32_t idx)
void	emit_epilogue (const func_type &ft, const guarded_vector< local_entry > &locals, uint32_t idx)
void	finalize (function_body &body)
const void *	get_addr () const
const void *	get_base_addr () const

Friends
struct	br_table_parser

Detailed Description

Definition at line 14 of file bitcode_writer.hpp.

Constructor & Destructor Documentation

bitcode_writer() [1/2]

sysio::vm::bitcode_writer::bitcode_writer ( growable_allocator & alloc, std::size_t source_bytes, module & mod )

inlineexplicit

Definition at line 22 of file bitcode_writer.hpp.

                                                                                              :
         _allocator(alloc),
         _code_segment_base(alloc.start_code()),
         fb(alloc, source_bytes),
         _mod(&mod) {}

~bitcode_writer() [1/2]

sysio::vm::bitcode_writer::~bitcode_writer ( )

inline

Definition at line 27 of file bitcode_writer.hpp.

{ _allocator.end_code<false>(_code_segment_base); }

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bitcode_writer() [2/2]

sysio::vm::bitcode_writer::bitcode_writer ( growable_allocator & alloc, std::size_t source_bytes, module & mod )

inlineexplicit

Definition at line 22 of file bitcode_writer.hpp.

                                                                                              :
         _allocator(alloc),
         _code_segment_base(alloc.start_code()),
         fb(alloc, source_bytes),
         _mod(&mod) {}

~bitcode_writer() [2/2]

sysio::vm::bitcode_writer::~bitcode_writer ( )

inline

Definition at line 27 of file bitcode_writer.hpp.

{ _allocator.end_code<false>(_code_segment_base); }

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Member Function Documentation

emit_block() [1/2]

void sysio::vm::bitcode_writer::emit_block ( )

inline

Definition at line 34 of file bitcode_writer.hpp.

{}

emit_block() [2/2]

void sysio::vm::bitcode_writer::emit_block ( )

inline

Definition at line 34 of file bitcode_writer.hpp.

{}

emit_br() [1/2]

uint32_t * sysio::vm::bitcode_writer::emit_br ( uint32_t depth_change )

inline

Definition at line 45 of file bitcode_writer.hpp.

                                                {
         auto& instr = append_instr(br_t{});
         instr.data = depth_change;
         return &instr.pc;
      }

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emit_br() [2/2]

uint32_t * sysio::vm::bitcode_writer::emit_br ( uint32_t depth_change )

inline

Definition at line 45 of file bitcode_writer.hpp.

                                                {
         auto& instr = append_instr(br_t{});
         instr.data = depth_change;
         return &instr.pc;
      }

emit_br_if() [1/2]

uint32_t * sysio::vm::bitcode_writer::emit_br_if ( uint32_t depth_change )

inline

Definition at line 50 of file bitcode_writer.hpp.

                                                   {
         auto& instr = append_instr(br_if_t{});
         instr.data = depth_change;
         return &instr.pc;
      }

emit_br_if() [2/2]

uint32_t * sysio::vm::bitcode_writer::emit_br_if ( uint32_t depth_change )

inline

Definition at line 50 of file bitcode_writer.hpp.

                                                   {
         auto& instr = append_instr(br_if_t{});
         instr.data = depth_change;
         return &instr.pc;
      }

emit_br_table() [1/2]

auto sysio::vm::bitcode_writer::emit_br_table ( uint32_t table_size )

inline

Definition at line 91 of file bitcode_writer.hpp.

{ return br_table_parser{ *this, table_size }; }

emit_br_table() [2/2]

auto sysio::vm::bitcode_writer::emit_br_table ( uint32_t table_size )

inline

Definition at line 91 of file bitcode_writer.hpp.

{ return br_table_parser{ *this, table_size }; }

emit_call() [1/2]

void sysio::vm::bitcode_writer::emit_call ( const func_type & ft, uint32_t funcnum )

inline

Definition at line 92 of file bitcode_writer.hpp.

{ fb[op_index++] = call_t{ funcnum }; }

emit_call() [2/2]

void sysio::vm::bitcode_writer::emit_call ( const func_type & ft, uint32_t funcnum )

inline

Definition at line 92 of file bitcode_writer.hpp.

{ fb[op_index++] = call_t{ funcnum }; }

emit_call_indirect() [1/2]

void sysio::vm::bitcode_writer::emit_call_indirect ( const func_type & ft, uint32_t functypeidx )

inline

Definition at line 93 of file bitcode_writer.hpp.

{ fb[op_index++] = call_indirect_t{ functypeidx }; }

emit_call_indirect() [2/2]

void sysio::vm::bitcode_writer::emit_call_indirect ( const func_type & ft, uint32_t functypeidx )

inline

Definition at line 93 of file bitcode_writer.hpp.

{ fb[op_index++] = call_indirect_t{ functypeidx }; }

emit_current_memory() [1/2]

void sysio::vm::bitcode_writer::emit_current_memory ( )

inline

Definition at line 135 of file bitcode_writer.hpp.

{ fb[op_index++] = current_memory_t{}; }

emit_current_memory() [2/2]

void sysio::vm::bitcode_writer::emit_current_memory ( )

inline

Definition at line 135 of file bitcode_writer.hpp.

{ fb[op_index++] = current_memory_t{}; }

emit_drop() [1/2]

void sysio::vm::bitcode_writer::emit_drop ( )

inline

Definition at line 96 of file bitcode_writer.hpp.

{ fb[op_index++] = drop_t{}; }

emit_drop() [2/2]

void sysio::vm::bitcode_writer::emit_drop ( )

inline

Definition at line 96 of file bitcode_writer.hpp.

{ fb[op_index++] = drop_t{}; }

emit_else() [1/2]

uint32_t * sysio::vm::bitcode_writer::emit_else ( uint32_t * if_loc )

inline

Definition at line 40 of file bitcode_writer.hpp.

                                              {
         auto& else_ = append_instr(else_t{});
         *if_loc = _base_offset + op_index;
         return &else_.pc;
      }

emit_else() [2/2]

uint32_t * sysio::vm::bitcode_writer::emit_else ( uint32_t * if_loc )

inline

Definition at line 40 of file bitcode_writer.hpp.

                                              {
         auto& else_ = append_instr(else_t{});
         *if_loc = _base_offset + op_index;
         return &else_.pc;
      }

emit_end() [1/2]

uint32_t sysio::vm::bitcode_writer::emit_end ( )

inline

Definition at line 30 of file bitcode_writer.hpp.

{ return op_index; }

emit_end() [2/2]

uint32_t sysio::vm::bitcode_writer::emit_end ( )

inline

Definition at line 30 of file bitcode_writer.hpp.

{ return op_index; }

emit_epilogue() [1/2]

void sysio::vm::bitcode_writer::emit_epilogue ( const func_type & ft, const guarded_vector< local_entry > & locals, uint32_t idx )

inline

Definition at line 288 of file bitcode_writer.hpp.

                                                                                                      {
         fb.resize(op_index + 1);
         uint32_t locals_count = 0;
         for(uint32_t i = 0; i < locals.size(); ++i) {
            locals_count += locals[i].count;
         }
         fb[fb.size() - 1] = return_t{ static_cast<uint32_t>(locals_count + ft.param_types.size()), ft.return_count, 0, 0 };
      }

emit_epilogue() [2/2]

void sysio::vm::bitcode_writer::emit_epilogue ( const func_type & ft, const guarded_vector< local_entry > & locals, uint32_t idx )

inline

Definition at line 288 of file bitcode_writer.hpp.

                                                                                                      {
         fb.resize(op_index + 1);
         uint32_t locals_count = 0;
         for(uint32_t i = 0; i < locals.size(); ++i) {
            locals_count += locals[i].count;
         }
         fb[fb.size() - 1] = return_t{ static_cast<uint32_t>(locals_count + ft.param_types.size()), ft.return_count, 0, 0 };
      }

emit_error() [1/2]

void sysio::vm::bitcode_writer::emit_error ( )

inline

Definition at line 280 of file bitcode_writer.hpp.

{ fb[op_index++] = error_t{}; }

emit_error() [2/2]

void sysio::vm::bitcode_writer::emit_error ( )

inline

Definition at line 280 of file bitcode_writer.hpp.

{ fb[op_index++] = error_t{}; }

emit_f32_const() [1/2]

void sysio::vm::bitcode_writer::emit_f32_const ( float value )

inline

Definition at line 140 of file bitcode_writer.hpp.

{ fb[op_index++] = f32_const_t{ value }; }

emit_f32_const() [2/2]

void sysio::vm::bitcode_writer::emit_f32_const ( float value )

inline

Definition at line 140 of file bitcode_writer.hpp.

{ fb[op_index++] = f32_const_t{ value }; }

emit_f64_const() [1/2]

void sysio::vm::bitcode_writer::emit_f64_const ( double value )

inline

Definition at line 141 of file bitcode_writer.hpp.

{ fb[op_index++] = f64_const_t{ value }; }

emit_f64_const() [2/2]

void sysio::vm::bitcode_writer::emit_f64_const ( double value )

inline

Definition at line 141 of file bitcode_writer.hpp.

{ fb[op_index++] = f64_const_t{ value }; }

emit_get_global() [1/2]

void sysio::vm::bitcode_writer::emit_get_global ( uint32_t localidx )

inline

Definition at line 101 of file bitcode_writer.hpp.

{ fb[op_index++] = get_global_t{localidx}; }

emit_get_global() [2/2]

void sysio::vm::bitcode_writer::emit_get_global ( uint32_t localidx )

inline

Definition at line 101 of file bitcode_writer.hpp.

{ fb[op_index++] = get_global_t{localidx}; }

emit_get_local() [1/2]

void sysio::vm::bitcode_writer::emit_get_local ( uint32_t localidx )

inline

Definition at line 98 of file bitcode_writer.hpp.

{ fb[op_index++] = get_local_t{localidx}; }

emit_get_local() [2/2]

void sysio::vm::bitcode_writer::emit_get_local ( uint32_t localidx )

inline

Definition at line 98 of file bitcode_writer.hpp.

{ fb[op_index++] = get_local_t{localidx}; }

emit_grow_memory() [1/2]

void sysio::vm::bitcode_writer::emit_grow_memory ( )

inline

Definition at line 136 of file bitcode_writer.hpp.

{ fb[op_index++] = grow_memory_t{}; }

emit_grow_memory() [2/2]

void sysio::vm::bitcode_writer::emit_grow_memory ( )

inline

Definition at line 136 of file bitcode_writer.hpp.

{ fb[op_index++] = grow_memory_t{}; }

emit_i32_const() [1/2]

void sysio::vm::bitcode_writer::emit_i32_const ( uint32_t value )

inline

Definition at line 138 of file bitcode_writer.hpp.

{ fb[op_index++] = i32_const_t{ value }; }

emit_i32_const() [2/2]

void sysio::vm::bitcode_writer::emit_i32_const ( uint32_t value )

inline

Definition at line 138 of file bitcode_writer.hpp.

{ fb[op_index++] = i32_const_t{ value }; }

emit_i64_const() [1/2]

void sysio::vm::bitcode_writer::emit_i64_const ( uint64_t value )

inline

Definition at line 139 of file bitcode_writer.hpp.

{ fb[op_index++] = i64_const_t{ value }; }

emit_i64_const() [2/2]

void sysio::vm::bitcode_writer::emit_i64_const ( uint64_t value )

inline

Definition at line 139 of file bitcode_writer.hpp.

{ fb[op_index++] = i64_const_t{ value }; }

emit_if() [1/2]

uint32_t * sysio::vm::bitcode_writer::emit_if ( )

inline

Definition at line 36 of file bitcode_writer.hpp.

                          { 
         if_t& instr = append_instr(if_t{});
         return &instr.pc;
      }

emit_if() [2/2]

uint32_t * sysio::vm::bitcode_writer::emit_if ( )

inline

Definition at line 36 of file bitcode_writer.hpp.

                          { 
         if_t& instr = append_instr(if_t{});
         return &instr.pc;
      }

emit_loop() [1/2]

uint32_t sysio::vm::bitcode_writer::emit_loop ( )

inline

Definition at line 35 of file bitcode_writer.hpp.

{ return op_index; }

emit_loop() [2/2]

uint32_t sysio::vm::bitcode_writer::emit_loop ( )

inline

Definition at line 35 of file bitcode_writer.hpp.

{ return op_index; }

emit_nop() [1/2]

void sysio::vm::bitcode_writer::emit_nop ( )

inline

Definition at line 29 of file bitcode_writer.hpp.

{ fb[op_index++] = nop_t{}; }

emit_nop() [2/2]

void sysio::vm::bitcode_writer::emit_nop ( )

inline

Definition at line 29 of file bitcode_writer.hpp.

{ fb[op_index++] = nop_t{}; }

emit_prologue() [1/2]

void sysio::vm::bitcode_writer::emit_prologue ( const func_type & ft, const guarded_vector< local_entry > & , uint32_t idx )

inline

Definition at line 283 of file bitcode_writer.hpp.

                                                                                                {
         op_index = 0;
         // pre-allocate for the function body code, so we have a big blob of memory to work with during function code parsing
         fb = guarded_vector<opcode>{_allocator, _mod->code[idx].size };
      }

emit_prologue() [2/2]

void sysio::vm::bitcode_writer::emit_prologue ( const func_type & ft, const guarded_vector< local_entry > & , uint32_t idx )

inline

Definition at line 283 of file bitcode_writer.hpp.

                                                                                                {
         op_index = 0;
         // pre-allocate for the function body code, so we have a big blob of memory to work with during function code parsing
         fb = guarded_vector<opcode>{_allocator, _mod->code[idx].size };
      }

emit_return() [1/2]

uint32_t * sysio::vm::bitcode_writer::emit_return ( uint32_t depth_change )

inline

Definition at line 31 of file bitcode_writer.hpp.

                                                   {
         return emit_br(depth_change);
      }

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emit_return() [2/2]

uint32_t * sysio::vm::bitcode_writer::emit_return ( uint32_t depth_change )

inline

Definition at line 31 of file bitcode_writer.hpp.

                                                   {
         return emit_br(depth_change);
      }

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emit_select() [1/2]

void sysio::vm::bitcode_writer::emit_select ( )

inline

Definition at line 97 of file bitcode_writer.hpp.

{ fb[op_index++] = select_t{}; }

emit_select() [2/2]

void sysio::vm::bitcode_writer::emit_select ( )

inline

Definition at line 97 of file bitcode_writer.hpp.

{ fb[op_index++] = select_t{}; }

emit_set_global() [1/2]

void sysio::vm::bitcode_writer::emit_set_global ( uint32_t localidx )

inline

Definition at line 102 of file bitcode_writer.hpp.

{ fb[op_index++] = set_global_t{localidx}; }

emit_set_global() [2/2]

void sysio::vm::bitcode_writer::emit_set_global ( uint32_t localidx )

inline

Definition at line 102 of file bitcode_writer.hpp.

{ fb[op_index++] = set_global_t{localidx}; }

emit_set_local() [1/2]

void sysio::vm::bitcode_writer::emit_set_local ( uint32_t localidx )

inline

Definition at line 99 of file bitcode_writer.hpp.

{ fb[op_index++] = set_local_t{localidx}; }

emit_set_local() [2/2]

void sysio::vm::bitcode_writer::emit_set_local ( uint32_t localidx )

inline

Definition at line 99 of file bitcode_writer.hpp.

{ fb[op_index++] = set_local_t{localidx}; }

emit_tee_local() [1/2]

void sysio::vm::bitcode_writer::emit_tee_local ( uint32_t localidx )

inline

Definition at line 100 of file bitcode_writer.hpp.

{ fb[op_index++] = tee_local_t{localidx}; }

emit_tee_local() [2/2]

void sysio::vm::bitcode_writer::emit_tee_local ( uint32_t localidx )

inline

Definition at line 100 of file bitcode_writer.hpp.

{ fb[op_index++] = tee_local_t{localidx}; }

emit_unreachable() [1/2]

void sysio::vm::bitcode_writer::emit_unreachable ( )

inline

Definition at line 28 of file bitcode_writer.hpp.

{ fb[op_index++] = unreachable_t{}; };

emit_unreachable() [2/2]

void sysio::vm::bitcode_writer::emit_unreachable ( )

inline

Definition at line 28 of file bitcode_writer.hpp.

{ fb[op_index++] = unreachable_t{}; };

finalize() [1/2]

void sysio::vm::bitcode_writer::finalize ( function_body & body )

inline

Definition at line 297 of file bitcode_writer.hpp.

                                         {
         op_index++;
         fb.resize(op_index);
         body.code = fb.raw();
         body.size = op_index;
         _base_offset += body.size;
      }

finalize() [2/2]

void sysio::vm::bitcode_writer::finalize ( function_body & body )

inline

Definition at line 297 of file bitcode_writer.hpp.

                                         {
         op_index++;
         fb.resize(op_index);
         body.code = fb.raw();
         body.size = op_index;
         _base_offset += body.size;
      }

fix_branch() [1/2]

void sysio::vm::bitcode_writer::fix_branch ( uint32_t * branch, uint32_t target )

inline

Definition at line 282 of file bitcode_writer.hpp.

{ if(branch) *branch = _base_offset + target; }

fix_branch() [2/2]

void sysio::vm::bitcode_writer::fix_branch ( uint32_t * branch, uint32_t target )

inline

Definition at line 282 of file bitcode_writer.hpp.

{ if(branch) *branch = _base_offset + target; }

get_addr() [1/2]

const void * sysio::vm::bitcode_writer::get_addr ( ) const

inline

Definition at line 305 of file bitcode_writer.hpp.

{ return fb.raw() + op_index; }

get_addr() [2/2]

const void * sysio::vm::bitcode_writer::get_addr ( ) const

inline

Definition at line 305 of file bitcode_writer.hpp.

{ return fb.raw() + op_index; }

get_base_addr() [1/2]

const void * sysio::vm::bitcode_writer::get_base_addr ( ) const

inline

Definition at line 306 of file bitcode_writer.hpp.

{ return _code_segment_base; }

get_base_addr() [2/2]

const void * sysio::vm::bitcode_writer::get_base_addr ( ) const

inline

Definition at line 306 of file bitcode_writer.hpp.

{ return _code_segment_base; }

Friends And Related Symbol Documentation

br_table_parser

br_table_parser

friend

Definition at line 57 of file bitcode_writer.hpp.

---

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

• libraries/sys-vm/include/sysio/sysio/vm/bitcode_writer.hpp
• libraries/sys-vm/include/sysio/vm/bitcode_writer.hpp