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279 lines
13 KiB
279 lines
13 KiB
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_PY_EMIT_H
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#define MICROPY_INCLUDED_PY_EMIT_H
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#include "py/lexer.h"
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#include "py/scope.h"
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/* Notes on passes:
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* We don't know exactly the opcodes in pass 1 because they depend on the
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* closing over of variables (LOAD_CLOSURE, BUILD_TUPLE, MAKE_CLOSURE), which
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* depends on determining the scope of variables in each function, and this
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* is not known until the end of pass 1.
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* As a consequence, we don't know the maximum stack size until the end of pass 2.
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* This is problematic for some emitters (x64) since they need to know the maximum
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* stack size to compile the entry to the function, and this affects code size.
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*/
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typedef enum {
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MP_PASS_SCOPE = 1, // work out id's and their kind, and number of labels
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MP_PASS_STACK_SIZE = 2, // work out maximum stack size
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MP_PASS_CODE_SIZE = 3, // work out code size and label offsets
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MP_PASS_EMIT = 4, // emit code
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} pass_kind_t;
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#define MP_EMIT_STAR_FLAG_SINGLE (0x01)
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#define MP_EMIT_STAR_FLAG_DOUBLE (0x02)
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#define MP_EMIT_BREAK_FROM_FOR (0x8000)
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#define MP_EMIT_NATIVE_TYPE_ENABLE (0)
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#define MP_EMIT_NATIVE_TYPE_RETURN (1)
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#define MP_EMIT_NATIVE_TYPE_ARG (2)
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// Kind for emit_id_ops->local()
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#define MP_EMIT_IDOP_LOCAL_FAST (0)
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#define MP_EMIT_IDOP_LOCAL_DEREF (1)
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// Kind for emit_id_ops->global()
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#define MP_EMIT_IDOP_GLOBAL_NAME (0)
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#define MP_EMIT_IDOP_GLOBAL_GLOBAL (1)
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// Kind for emit->import()
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#define MP_EMIT_IMPORT_NAME (0)
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#define MP_EMIT_IMPORT_FROM (1)
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#define MP_EMIT_IMPORT_STAR (2)
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// Kind for emit->subscr()
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#define MP_EMIT_SUBSCR_LOAD (0)
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#define MP_EMIT_SUBSCR_STORE (1)
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#define MP_EMIT_SUBSCR_DELETE (2)
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// Kind for emit->attr()
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#define MP_EMIT_ATTR_LOAD (0)
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#define MP_EMIT_ATTR_STORE (1)
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#define MP_EMIT_ATTR_DELETE (2)
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// Kind for emit->setup_block()
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#define MP_EMIT_SETUP_BLOCK_WITH (0)
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#define MP_EMIT_SETUP_BLOCK_EXCEPT (2)
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#define MP_EMIT_SETUP_BLOCK_FINALLY (3)
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// Kind for emit->build()
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#define MP_EMIT_BUILD_TUPLE (0)
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#define MP_EMIT_BUILD_LIST (1)
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#define MP_EMIT_BUILD_MAP (3)
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#define MP_EMIT_BUILD_SET (6)
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#define MP_EMIT_BUILD_SLICE (8)
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// Kind for emit->yield()
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#define MP_EMIT_YIELD_VALUE (0)
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#define MP_EMIT_YIELD_FROM (1)
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typedef struct _emit_t emit_t;
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typedef struct _mp_emit_method_table_id_ops_t {
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void (*local)(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);
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void (*global)(emit_t *emit, qstr qst, int kind);
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} mp_emit_method_table_id_ops_t;
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typedef struct _emit_method_table_t {
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void (*set_native_type)(emit_t *emit, mp_uint_t op, mp_uint_t arg1, qstr arg2);
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void (*start_pass)(emit_t *emit, pass_kind_t pass, scope_t *scope);
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void (*end_pass)(emit_t *emit);
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bool (*last_emit_was_return_value)(emit_t *emit);
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void (*adjust_stack_size)(emit_t *emit, mp_int_t delta);
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void (*set_source_line)(emit_t *emit, mp_uint_t line);
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mp_emit_method_table_id_ops_t load_id;
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mp_emit_method_table_id_ops_t store_id;
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mp_emit_method_table_id_ops_t delete_id;
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void (*label_assign)(emit_t *emit, mp_uint_t l);
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void (*import)(emit_t *emit, qstr qst, int kind);
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void (*load_const_tok)(emit_t *emit, mp_token_kind_t tok);
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void (*load_const_small_int)(emit_t *emit, mp_int_t arg);
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void (*load_const_str)(emit_t *emit, qstr qst);
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void (*load_const_obj)(emit_t *emit, mp_obj_t obj);
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void (*load_null)(emit_t *emit);
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void (*load_method)(emit_t *emit, qstr qst, bool is_super);
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void (*load_build_class)(emit_t *emit);
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void (*subscr)(emit_t *emit, int kind);
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void (*attr)(emit_t *emit, qstr qst, int kind);
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void (*dup_top)(emit_t *emit);
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void (*dup_top_two)(emit_t *emit);
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void (*pop_top)(emit_t *emit);
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void (*rot_two)(emit_t *emit);
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void (*rot_three)(emit_t *emit);
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void (*jump)(emit_t *emit, mp_uint_t label);
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void (*pop_jump_if)(emit_t *emit, bool cond, mp_uint_t label);
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void (*jump_if_or_pop)(emit_t *emit, bool cond, mp_uint_t label);
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void (*unwind_jump)(emit_t *emit, mp_uint_t label, mp_uint_t except_depth);
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void (*setup_block)(emit_t *emit, mp_uint_t label, int kind);
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void (*with_cleanup)(emit_t *emit, mp_uint_t label);
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void (*end_finally)(emit_t *emit);
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void (*get_iter)(emit_t *emit, bool use_stack);
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void (*for_iter)(emit_t *emit, mp_uint_t label);
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void (*for_iter_end)(emit_t *emit);
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void (*pop_block)(emit_t *emit);
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void (*pop_except)(emit_t *emit);
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void (*unary_op)(emit_t *emit, mp_unary_op_t op);
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void (*binary_op)(emit_t *emit, mp_binary_op_t op);
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void (*build)(emit_t *emit, mp_uint_t n_args, int kind);
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void (*store_map)(emit_t *emit);
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void (*store_comp)(emit_t *emit, scope_kind_t kind, mp_uint_t set_stack_index);
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void (*unpack_sequence)(emit_t *emit, mp_uint_t n_args);
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void (*unpack_ex)(emit_t *emit, mp_uint_t n_left, mp_uint_t n_right);
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void (*make_function)(emit_t *emit, scope_t *scope, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);
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void (*make_closure)(emit_t *emit, scope_t *scope, mp_uint_t n_closed_over, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);
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void (*call_function)(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);
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void (*call_method)(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);
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void (*return_value)(emit_t *emit);
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void (*raise_varargs)(emit_t *emit, mp_uint_t n_args);
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void (*yield)(emit_t *emit, int kind);
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// these methods are used to control entry to/exit from an exception handler
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// they may or may not emit code
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void (*start_except_handler)(emit_t *emit);
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void (*end_except_handler)(emit_t *emit);
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} emit_method_table_t;
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void mp_emit_common_get_id_for_load(scope_t *scope, qstr qst);
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void mp_emit_common_get_id_for_modification(scope_t *scope, qstr qst);
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void mp_emit_common_id_op(emit_t *emit, const mp_emit_method_table_id_ops_t *emit_method_table, scope_t *scope, qstr qst);
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extern const emit_method_table_t emit_bc_method_table;
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extern const emit_method_table_t emit_native_x64_method_table;
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extern const emit_method_table_t emit_native_x86_method_table;
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extern const emit_method_table_t emit_native_thumb_method_table;
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extern const emit_method_table_t emit_native_arm_method_table;
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extern const emit_method_table_t emit_native_xtensa_method_table;
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extern const mp_emit_method_table_id_ops_t mp_emit_bc_method_table_load_id_ops;
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extern const mp_emit_method_table_id_ops_t mp_emit_bc_method_table_store_id_ops;
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extern const mp_emit_method_table_id_ops_t mp_emit_bc_method_table_delete_id_ops;
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emit_t *emit_bc_new(void);
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emit_t *emit_native_x64_new(mp_obj_t *error_slot, mp_uint_t max_num_labels);
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emit_t *emit_native_x86_new(mp_obj_t *error_slot, mp_uint_t max_num_labels);
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emit_t *emit_native_thumb_new(mp_obj_t *error_slot, mp_uint_t max_num_labels);
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emit_t *emit_native_arm_new(mp_obj_t *error_slot, mp_uint_t max_num_labels);
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emit_t *emit_native_xtensa_new(mp_obj_t *error_slot, mp_uint_t max_num_labels);
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void emit_bc_set_max_num_labels(emit_t* emit, mp_uint_t max_num_labels);
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void emit_bc_free(emit_t *emit);
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void emit_native_x64_free(emit_t *emit);
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void emit_native_x86_free(emit_t *emit);
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void emit_native_thumb_free(emit_t *emit);
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void emit_native_arm_free(emit_t *emit);
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void emit_native_xtensa_free(emit_t *emit);
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void mp_emit_bc_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scope);
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void mp_emit_bc_end_pass(emit_t *emit);
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bool mp_emit_bc_last_emit_was_return_value(emit_t *emit);
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void mp_emit_bc_adjust_stack_size(emit_t *emit, mp_int_t delta);
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void mp_emit_bc_set_source_line(emit_t *emit, mp_uint_t line);
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void mp_emit_bc_load_local(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);
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void mp_emit_bc_load_global(emit_t *emit, qstr qst, int kind);
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void mp_emit_bc_store_local(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);
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void mp_emit_bc_store_global(emit_t *emit, qstr qst, int kind);
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void mp_emit_bc_delete_local(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);
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void mp_emit_bc_delete_global(emit_t *emit, qstr qst, int kind);
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void mp_emit_bc_label_assign(emit_t *emit, mp_uint_t l);
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void mp_emit_bc_import(emit_t *emit, qstr qst, int kind);
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void mp_emit_bc_load_const_tok(emit_t *emit, mp_token_kind_t tok);
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void mp_emit_bc_load_const_small_int(emit_t *emit, mp_int_t arg);
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void mp_emit_bc_load_const_str(emit_t *emit, qstr qst);
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void mp_emit_bc_load_const_obj(emit_t *emit, mp_obj_t obj);
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void mp_emit_bc_load_null(emit_t *emit);
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void mp_emit_bc_load_method(emit_t *emit, qstr qst, bool is_super);
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void mp_emit_bc_load_build_class(emit_t *emit);
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void mp_emit_bc_subscr(emit_t *emit, int kind);
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void mp_emit_bc_attr(emit_t *emit, qstr qst, int kind);
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void mp_emit_bc_dup_top(emit_t *emit);
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void mp_emit_bc_dup_top_two(emit_t *emit);
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void mp_emit_bc_pop_top(emit_t *emit);
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void mp_emit_bc_rot_two(emit_t *emit);
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void mp_emit_bc_rot_three(emit_t *emit);
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void mp_emit_bc_jump(emit_t *emit, mp_uint_t label);
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void mp_emit_bc_pop_jump_if(emit_t *emit, bool cond, mp_uint_t label);
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void mp_emit_bc_jump_if_or_pop(emit_t *emit, bool cond, mp_uint_t label);
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void mp_emit_bc_unwind_jump(emit_t *emit, mp_uint_t label, mp_uint_t except_depth);
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void mp_emit_bc_setup_block(emit_t *emit, mp_uint_t label, int kind);
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void mp_emit_bc_with_cleanup(emit_t *emit, mp_uint_t label);
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void mp_emit_bc_end_finally(emit_t *emit);
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void mp_emit_bc_get_iter(emit_t *emit, bool use_stack);
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void mp_emit_bc_for_iter(emit_t *emit, mp_uint_t label);
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void mp_emit_bc_for_iter_end(emit_t *emit);
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void mp_emit_bc_pop_block(emit_t *emit);
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void mp_emit_bc_pop_except(emit_t *emit);
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void mp_emit_bc_unary_op(emit_t *emit, mp_unary_op_t op);
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void mp_emit_bc_binary_op(emit_t *emit, mp_binary_op_t op);
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void mp_emit_bc_build(emit_t *emit, mp_uint_t n_args, int kind);
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void mp_emit_bc_store_map(emit_t *emit);
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void mp_emit_bc_store_comp(emit_t *emit, scope_kind_t kind, mp_uint_t list_stack_index);
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void mp_emit_bc_unpack_sequence(emit_t *emit, mp_uint_t n_args);
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void mp_emit_bc_unpack_ex(emit_t *emit, mp_uint_t n_left, mp_uint_t n_right);
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void mp_emit_bc_make_function(emit_t *emit, scope_t *scope, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);
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void mp_emit_bc_make_closure(emit_t *emit, scope_t *scope, mp_uint_t n_closed_over, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);
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void mp_emit_bc_call_function(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);
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void mp_emit_bc_call_method(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);
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void mp_emit_bc_return_value(emit_t *emit);
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void mp_emit_bc_raise_varargs(emit_t *emit, mp_uint_t n_args);
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void mp_emit_bc_yield(emit_t *emit, int kind);
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void mp_emit_bc_start_except_handler(emit_t *emit);
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void mp_emit_bc_end_except_handler(emit_t *emit);
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typedef struct _emit_inline_asm_t emit_inline_asm_t;
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typedef struct _emit_inline_asm_method_table_t {
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void (*start_pass)(emit_inline_asm_t *emit, pass_kind_t pass, mp_obj_t *error_slot);
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void (*end_pass)(emit_inline_asm_t *emit, mp_uint_t type_sig);
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mp_uint_t (*count_params)(emit_inline_asm_t *emit, mp_uint_t n_params, mp_parse_node_t *pn_params);
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bool (*label)(emit_inline_asm_t *emit, mp_uint_t label_num, qstr label_id);
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void (*op)(emit_inline_asm_t *emit, qstr op, mp_uint_t n_args, mp_parse_node_t *pn_args);
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} emit_inline_asm_method_table_t;
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extern const emit_inline_asm_method_table_t emit_inline_thumb_method_table;
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extern const emit_inline_asm_method_table_t emit_inline_xtensa_method_table;
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emit_inline_asm_t *emit_inline_thumb_new(mp_uint_t max_num_labels);
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emit_inline_asm_t *emit_inline_xtensa_new(mp_uint_t max_num_labels);
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void emit_inline_thumb_free(emit_inline_asm_t *emit);
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void emit_inline_xtensa_free(emit_inline_asm_t *emit);
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#if MICROPY_WARNINGS
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void mp_emitter_warning(pass_kind_t pass, const char *msg);
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#else
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#define mp_emitter_warning(pass, msg)
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#endif
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#endif // MICROPY_INCLUDED_PY_EMIT_H
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