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raw | patch | inline | side by side (parent: d11b76d)
raw | patch | inline | side by side (parent: d11b76d)
author | DeaDDooMER <deaddoomer@deadsoftware.ru> | |
Sun, 30 Jul 2017 15:01:53 +0000 (18:01 +0300) | ||
committer | DeaDDooMER <deaddoomer@deadsoftware.ru> | |
Sun, 30 Jul 2017 15:01:53 +0000 (18:01 +0300) |
make.sh | patch | blob | history | |
src/backends/dummy/generator-dummy.c | [deleted file] | patch | blob | history |
src/backends/dummy/generator-dummy.h | [deleted file] | patch | blob | history |
src/backends/libgccjit/generator-libgccjit.c | [deleted file] | patch | blob | history |
src/backends/libgccjit/generator-libgccjit.h | [deleted file] | patch | blob | history |
src/backends/libgccjit/notes | [deleted file] | patch | blob | history |
index 561238eda9798416c20e73fb5c80f65c3312c8f5..64ae77f1716f1efecbd865152c6f4f83fd448fa5 100755 (executable)
--- a/make.sh
+++ b/make.sh
CFLAGS="-g -Wall -Werror -std=c11 -lgc"
case "$1" in
- dummy)
- $CC $CFLAGS src/*.c src/backends/dummy/*.c
- ;;
jvm)
$CC $CFLAGS src/*.c src/backends/jvm/*.c
;;
- libgccjit)
- CFLAGS="-lgccjit $CFLAGS"
- $CC $CFLAGS src/*.c src/backends/libgccjit/*.c
- ;;
***)
echo "use: make.sh <backend>"
- echo "list of backends: dummy jvm libgccjit"
+ echo "list of backends: jvm"
esac
diff --git a/src/backends/dummy/generator-dummy.c b/src/backends/dummy/generator-dummy.c
+++ /dev/null
@@ -1,118 +0,0 @@
-#include <string.h>
-#include <assert.h>
-
-#include <gc.h>
-
-#include "../../../include/oberon.h"
-#include "../../oberon-internals.h"
-#include "generator-dummy.h"
-
-void
-oberon_generator_init_context(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = GC_MALLOC(sizeof *gen_context);
- memset(gen_context, 0, sizeof *gen_context);
-
- ctx -> gen_context = gen_context;
-}
-
-void
-oberon_generator_destroy_context(oberon_context_t * ctx)
-{
- ctx -> gen_context = NULL;
-}
-
-void
-oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
-{
- type -> gen_type = NULL;
-}
-
-void
-oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * type)
-{
- assert(type -> class == OBERON_TYPE_RECORD);
- // init record fields
-}
-
-void
-oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
-{
- var -> gen_var = NULL;
-}
-
-void
-oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
-{
- proc -> gen_proc = NULL;
-}
-
-// =======================================================================
-// GENERATOR
-// =======================================================================
-
-void
-oberon_generate_begin_module(oberon_context_t * ctx)
-{
-
-}
-
-void
-oberon_generate_end_module(oberon_context_t * ctx)
-{
-
-}
-
-void
-oberon_generate_begin_proc(oberon_context_t * ctx, oberon_object_t * proc)
-{
-
-}
-
-void
-oberon_generate_call_proc(oberon_context_t * ctx, oberon_expr_t * desig)
-{
-
-}
-
-void
-oberon_generate_end_proc(oberon_context_t * ctx)
-{
-
-}
-
-void
-oberon_generate_return(oberon_context_t * ctx, oberon_expr_t * expr)
-{
-
-}
-
-void
-oberon_generate_assign(oberon_context_t * ctx, oberon_expr_t * src, oberon_expr_t * dst)
-{
-
-}
-
-void
-oberon_generate_code(oberon_context_t * ctx)
-{
-
-}
-
-void
-oberon_generator_dump(oberon_context_t * ctx, char * path)
-{
-
-}
-
-void *
-oberon_generator_get_procedure(oberon_context_t * ctx, const char * name)
-{
- return NULL;
-}
-
-void *
-oberon_generator_get_var(oberon_context_t * ctx, const char * name)
-{
- return NULL;
-}
diff --git a/src/backends/dummy/generator-dummy.h b/src/backends/dummy/generator-dummy.h
+++ /dev/null
@@ -1,24 +0,0 @@
-struct gen_proc_t
-{
-
-};
-
-struct gen_type_t
-{
-
-};
-
-struct gen_var_t
-{
-
-};
-
-struct gen_block_t
-{
-
-};
-
-struct gen_context_t
-{
-
-};
diff --git a/src/backends/libgccjit/generator-libgccjit.c b/src/backends/libgccjit/generator-libgccjit.c
+++ /dev/null
@@ -1,852 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <string.h>
-#include <assert.h>
-#include <stdbool.h>
-
-#include <gc.h>
-
-#include "../../../include/oberon.h"
-#include "../../oberon-internals.h"
-#include "generator-libgccjit.h"
-
-// =======================================================================
-// INTERNAL FUNCTIONS
-// =======================================================================
-
-static void *
-__OBERON_ALLOC__ (size_t bytes)
-{
- void * p = GC_MALLOC(bytes);
- memset(p, 0, bytes);
- printf("allocated %lu bytes\n", bytes);
- return p;
-}
-
-// =======================================================================
-// ALLOC
-// =======================================================================
-
-static void
-oberon_generator_open_block(gen_context_t * gen_context, gcc_jit_block * gcc_block)
-{
- gen_block_t * block = malloc(sizeof *block);
- memset(block, 0, sizeof *block);
-
- block -> gcc_block = gcc_block;
- block -> up = gen_context -> block;
-
- gen_context -> block = block;
-}
-
-static void
-oberon_generator_close_block(gen_context_t * gen_context)
-{
- gen_context -> block = gen_context -> block -> up;
-}
-
-void
-oberon_generator_init_context(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = malloc(sizeof *gen_context);
- memset(gen_context, 0, sizeof *gen_context);
-
- gcc_jit_context * gcc_context;
- gcc_context = gcc_jit_context_acquire();
-
- ctx -> gen_context = gen_context;
- gen_context -> gcc_context = gcc_context;
-
- gcc_jit_type * void_ptr_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_VOID_PTR);
- gcc_jit_type * size_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_SIZE_T);
- gcc_jit_type * alloc_ptr_type = gcc_jit_context_new_function_ptr_type(
- gcc_context, NULL, void_ptr_type, 1, &size_type, 0
- );
- gen_context -> gcc_alloc = gcc_jit_context_new_global(
- gcc_context, NULL, GCC_JIT_GLOBAL_EXPORTED, alloc_ptr_type, "__OBERON_ALLOC__"
- );
-}
-
-void
-oberon_generator_destroy_context(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- gcc_jit_context_release(gcc_context);
-}
-
-void
-oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
-{
- gen_type_t * gen_type = malloc(sizeof *gen_type);
- memset(gen_type, 0, sizeof *gen_type);
- type -> gen_type = gen_type;
-
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- gcc_jit_type * gcc_type = NULL;
- gcc_jit_struct * gcc_struct = NULL;
- if(type -> class == OBERON_TYPE_VOID)
- {
- gcc_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_VOID);
- }
- else if(type -> class == OBERON_TYPE_INTEGER)
- {
- gcc_type = gcc_jit_context_get_int_type(gcc_context, type -> size, 1);
- }
- else if(type -> class == OBERON_TYPE_BOOLEAN)
- {
- if(type -> size == sizeof(bool))
- {
- gcc_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_BOOL);
- }
- else
- {
- oberon_error(ctx, "generator: unsupported boolean size");
- }
- }
- else if(type -> class == OBERON_TYPE_REAL)
- {
- if(type -> size == sizeof(float))
- {
- gcc_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_FLOAT);
- }
- else if(type -> size == sizeof(double))
- {
- gcc_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_DOUBLE);
- }
- else if(type -> size == sizeof(long double))
- {
- gcc_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_LONG_DOUBLE);
- }
- else
- {
- oberon_error(ctx, "generator: unsupported real size");
- }
- }
- else if(type -> class == OBERON_TYPE_ARRAY)
- {
- gen_type_t * gen_base = type -> base -> gen_type;
- gcc_jit_type * gcc_base = gen_base -> gcc_type;
- gcc_type = gcc_jit_context_new_array_type(gcc_context, NULL, gcc_base, type -> size);
- }
- else if(type -> class == OBERON_TYPE_RECORD)
- {
- char name[32];
- snprintf(name, 32, "RECORD%u", gen_context -> record_count);
- gen_context -> record_count += 1;
-
- gcc_struct = gcc_jit_context_new_opaque_struct(gcc_context, NULL, name);
- gcc_type = gcc_jit_struct_as_type(gcc_struct);
- }
- else if(type -> class == OBERON_TYPE_POINTER)
- {
- gen_type_t * gen_base = type -> base -> gen_type;
- gcc_jit_type * gcc_base = gen_base -> gcc_type;
- gcc_type = gcc_jit_type_get_pointer(gcc_base);
- }
- else if(type -> class == OBERON_TYPE_PROCEDURE)
- {
- int num_params = type -> num_decl;
- gcc_jit_type * params[num_params];
- oberon_object_t * o = type -> decl;
- for(int i = 0; i < num_params; i++)
- {
- gen_type_t * gen_type = o -> type -> gen_type;
- params[i] = gen_type -> gcc_type;
- o = o -> next;
- }
-
- gen_type_t * base = type -> base -> gen_type;
- gcc_jit_type * result_type = base -> gcc_type;
-
- gcc_type = gcc_jit_context_new_function_ptr_type(
- gcc_context, NULL, result_type, num_params, params, 0
- );
- }
- else
- {
- oberon_error(ctx, "oberon_generator_init_type: invalid type class %i", type -> class);
- }
-
- assert(gcc_type);
- gen_type -> gcc_type = gcc_type;
- gen_type -> gcc_struct = gcc_struct;
-}
-
-void
-oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * type)
-{
- assert(type -> class == OBERON_TYPE_RECORD);
-
- gen_type_t * gen_type = type -> gen_type;
- gcc_jit_struct * gcc_struct = gen_type -> gcc_struct;
-
- // TODO type exstension
-
- int num_fields = type -> num_decl;
- gcc_jit_field * fields[num_fields];
- oberon_object_t * o = type -> decl;
- for(int i = 0; i < num_fields; i++)
- {
- assert(o -> class == OBERON_CLASS_FIELD);
- gen_var_t * var = o -> gen_var;
- fields[i] = var -> gcc_field;
- o = o -> next;
- }
-
- gcc_jit_struct_set_fields (gcc_struct, NULL, num_fields, fields);
-
- //gcc_struct = gcc_jit_context_new_struct_type(gcc_context, NULL, "", num_fields, fields);
-}
-
-static void
-oberon_generator_get_full_name(char * name, int max_len, oberon_object_t * x)
-{
- if(!x)
- {
- name[0] = 0;
- return;
- }
-
- int add_module_prefix;
- switch(x -> class)
- {
- case OBERON_CLASS_FIELD:
- case OBERON_CLASS_PARAM:
- case OBERON_CLASS_VAR_PARAM:
- /* В локальных областях префиксы излишни */
- add_module_prefix = 0;
- break;
- default:
- add_module_prefix = 1;
- break;
- }
-
- char parent[256];
- oberon_generator_get_full_name(parent, 256, x -> parent);
-
- if(strlen(parent) > 0)
- {
- snprintf(name, max_len, "%s_%s", parent, x -> name);
- }
- else if(add_module_prefix)
- {
- snprintf(name, max_len, "%s_%s", x -> module -> name, x -> name);
- }
- else
- {
- snprintf(name, max_len, "%s", x -> name);
- }
-}
-
-void
-oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gen_type_t * gen_type = var -> type -> gen_type;
-
- gen_var_t * gen_var = malloc(sizeof *gen_var);
- memset(gen_var, 0, sizeof *gen_var);
- var -> gen_var = gen_var;
-
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
- gcc_jit_type * gcc_type = gen_type -> gcc_type;
-
- char name[256];
- oberon_generator_get_full_name(name, 256, var);
-
- gcc_jit_lvalue * gcc_lvalue = NULL;
- gcc_jit_param * gcc_param = NULL;
- gcc_jit_field * gcc_field = NULL;
- if(var -> class == OBERON_CLASS_VAR)
- {
- if(var -> local)
- {
- gen_proc_t * gen_func = var -> parent -> gen_proc;
- gcc_jit_function * func = gen_func -> gcc_func;
-
- gcc_lvalue = gcc_jit_function_new_local(func, NULL, gcc_type, name);
- }
- else
- {
- gcc_lvalue = gcc_jit_context_new_global(
- gcc_context, NULL, GCC_JIT_GLOBAL_EXPORTED, gcc_type, name
- );
- }
- }
- else if(var -> class == OBERON_CLASS_PARAM)
- {
- gcc_param = gcc_jit_context_new_param(gcc_context, NULL, gcc_type, name);
- gcc_lvalue = gcc_jit_param_as_lvalue(gcc_param);
- }
- else if(var -> class == OBERON_CLASS_VAR_PARAM)
- {
- gcc_type = gcc_jit_type_get_pointer(gcc_type);
- gcc_param = gcc_jit_context_new_param(gcc_context, NULL, gcc_type, name);
- gcc_lvalue = gcc_jit_param_as_lvalue(gcc_param);
- }
- else if(var -> class == OBERON_CLASS_FIELD)
- {
- gcc_field = gcc_jit_context_new_field(gcc_context, NULL, gcc_type, name);
- }
- else
- {
- oberon_error(ctx, "oberon_generator_init_var: invalid class %i", var -> class);
- }
-
- gen_var -> gcc_lvalue = gcc_lvalue;
- gen_var -> gcc_param = gcc_param;
- gen_var -> gcc_field = gcc_field;
-}
-
-void
-oberon_generator_init_proc(oberon_context_t * ctx, oberon_object_t * proc)
-{
- if(proc -> local)
- {
- oberon_error(ctx, "generator: local procedures not supported");
- }
-
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- gen_proc_t * gen_proc = malloc(sizeof *gen_proc);
- memset(gen_proc, 0, sizeof *gen_proc);
- proc -> gen_proc = gen_proc;
-
- char name[256];
- oberon_generator_get_full_name(name, 256, proc);
-
- gen_type_t * gen_result_type = proc -> type -> base -> gen_type;
- gcc_jit_type * result_type = gen_result_type -> gcc_type;
-
- /* Строим список параметров */
- int num_param = proc -> type -> num_decl;
- oberon_object_t * o = proc -> type -> decl;
- gcc_jit_param * params[num_param];
- for(int i = 0; i < num_param; i++)
- {
- gen_var_t * param_var = o -> gen_var;
- params[i] = param_var -> gcc_param;
- o = o -> next;
- }
-
- gcc_jit_function * gcc_func;
- gcc_func = gcc_jit_context_new_function(
- gcc_context, NULL, GCC_JIT_FUNCTION_EXPORTED, result_type, name, num_param, params, 0
- );
-
- gen_proc -> gcc_func = gcc_func;
-}
-
-// =======================================================================
-// GENERATOR
-// =======================================================================
-
-static gcc_jit_rvalue * rvalue_from_item(oberon_context_t * ctx, oberon_item_t * item);
-static gcc_jit_rvalue * rvalue_from_expr(oberon_context_t * ctx, oberon_expr_t * expr);
-
-static int
-oberon_generator_get_type_size(oberon_context_t * ctx, oberon_type_t * type)
-{
- int size = 0;
- switch(type -> class)
- {
- case OBERON_TYPE_INTEGER:
- size = type -> size;
- printf("int size: %i\n", size);
- break;
- case OBERON_TYPE_BOOLEAN:
- size = sizeof(bool);
- printf("bool size: %i\n", size);
- break;
- case OBERON_TYPE_PROCEDURE:
- case OBERON_TYPE_POINTER:
- size = sizeof(void*);
- printf("ptr size: %i\n", size);
- break;
- case OBERON_TYPE_ARRAY:
- size = type -> size;
- type = type -> base;
- size = (size == 0) ? (1) : (size);
- size *= oberon_generator_get_type_size(ctx, type);
- printf("array size: %i\n", size);
- break;
- case OBERON_TYPE_RECORD:
- {
- int num = type -> num_decl;
- oberon_object_t * arg = type -> decl;
- for(int i = 0; i < num; i++)
- {
- oberon_type_t * x;
- x = arg -> type;
- size += oberon_generator_get_type_size(ctx, x);
- arg = arg -> next;
- }
- }
- printf("struct size: %i\n", size);
- break;
- default:
- oberon_error(ctx, "oberon_generator_get_type_size: wat");
- break;
- }
-
- return size;
-}
-
-void
-oberon_generate_begin_module(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- char name[256];
- snprintf(name, 256, "%s_BEGIN", ctx -> mod -> name);
-
- gcc_jit_type * void_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_VOID);
- gcc_jit_function * func = gcc_jit_context_new_function(
- gcc_context, NULL, GCC_JIT_FUNCTION_EXPORTED, void_type, name, 0, NULL, 0
- );
- gcc_jit_block * gcc_block = gcc_jit_function_new_block(func, NULL);
-
- oberon_generator_open_block(gen_context, gcc_block);
-}
-
-void
-oberon_generate_end_module(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_block * gcc_block = gen_context -> block -> gcc_block;
-
- gcc_jit_block_end_with_void_return(gcc_block, NULL);
-
- oberon_generator_close_block(gen_context);
-}
-
-void
-oberon_generate_begin_proc(oberon_context_t * ctx, oberon_object_t * proc)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gen_proc_t * gen_proc = proc -> gen_proc;
-
- gcc_jit_function * func = gen_proc -> gcc_func;
- gcc_jit_block * gcc_block = gcc_jit_function_new_block(func, NULL);
-
- oberon_generator_open_block(gen_context, gcc_block);
-}
-
-void
-oberon_generate_call_proc(oberon_context_t * ctx, oberon_expr_t * desig)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gen_block_t * gen_block = gen_context -> block;
- gcc_jit_block * block = gen_block -> gcc_block;
-
- gcc_jit_rvalue * return_value;
- return_value = rvalue_from_expr(ctx, desig);
- gcc_jit_block_add_eval(block, NULL, return_value);
-}
-
-void
-oberon_generate_end_proc(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- oberon_generator_close_block(gen_context);
-}
-
-void
-oberon_generate_return(oberon_context_t * ctx, oberon_expr_t * expr)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gen_block_t * gen_block = gen_context -> block;
- gcc_jit_block * gcc_block = gen_block -> gcc_block;
-
- if(expr == NULL)
- {
- gcc_jit_block_end_with_void_return(gcc_block, NULL);
- }
- else
- {
- gcc_jit_rvalue * r = rvalue_from_expr(ctx, expr);
- gcc_jit_block_end_with_return(gcc_block, NULL, r);
- }
-}
-
-static gcc_jit_lvalue *
-lvalue_from_item(oberon_context_t * ctx, oberon_item_t * item)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- gcc_jit_lvalue * left;
-
- if(item -> mode == MODE_VAR)
- {
- if(item -> var -> class == OBERON_CLASS_PROC)
- {
- oberon_error(ctx, "casting static procedure to pointer not supported by generator");
- }
-
- gen_var_t * gen_var = item -> var -> gen_var;
- left = gen_var -> gcc_lvalue;
- if(item -> var -> class == OBERON_CLASS_VAR_PARAM)
- {
- gcc_jit_rvalue * r = gcc_jit_lvalue_as_rvalue(left);
- left = gcc_jit_rvalue_dereference(r, NULL);
- }
- }
- else if(item -> mode == MODE_INDEX)
- {
- assert(item -> num_args == 1);
- gcc_jit_rvalue * parent = rvalue_from_item(ctx, item -> parent);
- gcc_jit_rvalue * index = rvalue_from_expr(ctx, item -> args);
- left = gcc_jit_context_new_array_access(gcc_context, NULL, parent, index);
- }
- else if(item -> mode == MODE_FIELD)
- {
- printf("lvalue_from_item: %s\n", item -> var -> name);
- gen_var_t * gen_var = item -> var -> gen_var;
- gcc_jit_field * gcc_field = gen_var -> gcc_field;
-
- gcc_jit_lvalue * parent = lvalue_from_item(ctx, item -> parent);
- left = gcc_jit_lvalue_access_field(parent, NULL, gcc_field);
- }
- else if(item -> mode == MODE_DEREF)
- {
- gcc_jit_rvalue * parent = rvalue_from_item(ctx, item -> parent);
- left = gcc_jit_rvalue_dereference(parent, NULL);
- }
- else
- {
- oberon_error(ctx, "lvalue_from_item: invalid mode %i", item -> mode);
- }
-
- return left;
-}
-
-static gcc_jit_lvalue *
-lvalue_from_expr(oberon_context_t *ctx, oberon_expr_t * expr)
-{
- gcc_jit_lvalue * left;
- oberon_item_t * item;
-
- if(expr -> is_item)
- {
- item = (oberon_item_t *) expr;
- left = lvalue_from_item(ctx, item);
- }
- else
- {
- oberon_error(ctx, "invalid lvalue expression");
- }
-
- return left;
-}
-
-static gcc_jit_rvalue *
-rvalue_from_item(oberon_context_t * ctx, oberon_item_t * item)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- gcc_jit_rvalue * right;
- if(item -> mode == MODE_VAR)
- {
- gcc_jit_lvalue * left = lvalue_from_item(ctx, item);
- right = gcc_jit_lvalue_as_rvalue(left);
- }
- else if(item -> mode == MODE_INTEGER)
- {
- gcc_jit_type * int_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_INT);
- right = gcc_jit_context_new_rvalue_from_int(gcc_context, int_type, item -> integer);
- }
- else if(item -> mode == MODE_BOOLEAN)
- {
- gcc_jit_type * bool_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_BOOL);
- if(item -> boolean)
- {
- right = gcc_jit_context_one(gcc_context, bool_type);
- }
- else
- {
- right = gcc_jit_context_zero(gcc_context, bool_type);
- }
- }
- else if(item -> mode == MODE_CALL)
- {
- oberon_type_t * signature = item -> var -> type;
- gen_proc_t * gen_proc = item -> var -> gen_proc;
-
- int num_args = item -> num_args;
- gcc_jit_rvalue *args[num_args];
-
- oberon_expr_t * expr = item -> args;
- oberon_object_t * arg_param = signature -> decl;
- for(int i = 0; i < num_args; i++)
- {
- if(arg_param -> class == OBERON_CLASS_VAR_PARAM)
- {
- gcc_jit_lvalue * left = lvalue_from_expr(ctx, expr);
- args[i] = gcc_jit_lvalue_get_address(left, NULL);
- }
- else
- {
- args[i] = rvalue_from_expr(ctx, expr);
- }
- expr = expr -> next;
- arg_param = arg_param -> next;
- }
-
- gcc_jit_rvalue * fnptr;
- gcc_jit_function * func;
- switch(item -> var -> class)
- {
- case OBERON_CLASS_PROC:
- func = gen_proc -> gcc_func;
- right = gcc_jit_context_new_call(
- gcc_context, NULL, func, num_args, args
- );
- break;
- case OBERON_CLASS_VAR:
- case OBERON_CLASS_VAR_PARAM:
- case OBERON_CLASS_PARAM:
- fnptr = gcc_jit_lvalue_as_rvalue(item -> var -> gen_var -> gcc_lvalue);
- right = gcc_jit_context_new_call_through_ptr(
- gcc_context, NULL, fnptr, num_args, args
- );
- break;
- default:
- assert(0);
- break;
- }
- }
- else if(item -> mode == MODE_INDEX)
- {
- gcc_jit_lvalue * left = lvalue_from_item(ctx, item);
- right = gcc_jit_lvalue_as_rvalue(left);
- }
- else if(item -> mode == MODE_FIELD)
- {
- gen_var_t * gen_var = item -> var -> gen_var;
- gcc_jit_field * gcc_field = gen_var -> gcc_field;
-
- gcc_jit_rvalue * parent = rvalue_from_item(ctx, item -> parent);
- right = gcc_jit_rvalue_access_field(parent, NULL, gcc_field);
- }
- else if(item -> mode == MODE_DEREF)
- {
- gcc_jit_lvalue * left = lvalue_from_item(ctx, item);
- right = gcc_jit_lvalue_as_rvalue(left);
- }
- else if(item -> mode == MODE_NIL)
- {
- gcc_jit_type * type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_VOID_PTR);
- right = gcc_jit_context_null(gcc_context, type);
- }
- else if(item -> mode == MODE_NEW)
- {
- assert(item -> result -> class == OBERON_TYPE_POINTER);
-
- oberon_type_t * type = item -> result -> base;
- int type_size = oberon_generator_get_type_size(ctx, type);
- int array_size = type_size;
-
- int num = item -> num_args;
- oberon_expr_t * arg = item -> args;
- for(int i = 0; i < num; i++)
- {
- array_size *= arg -> item.integer;
- arg = arg -> next;
- }
-
- gcc_jit_type * size_type;
- size_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_SIZE_T);
-
- gcc_jit_rvalue * fnarg;
- fnarg = gcc_jit_context_new_rvalue_from_int(gcc_context, size_type, array_size);
-
- gcc_jit_type * result_type = item -> result -> gen_type -> gcc_type;
- gcc_jit_rvalue * gcc_alloc = gcc_jit_lvalue_as_rvalue(gen_context -> gcc_alloc);
- right = gcc_jit_context_new_call_through_ptr(gcc_context, NULL, gcc_alloc, 1, &fnarg);
- right = gcc_jit_context_new_cast(gcc_context, NULL, right, result_type);
- }
- else if(item -> mode == MODE_REAL)
- {
- gcc_jit_type * int_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_FLOAT);
- right = gcc_jit_context_new_rvalue_from_int(gcc_context, int_type, item -> real);
- }
- else
- {
- oberon_error(ctx, "rvalue_from_item: invalid mode %i", item -> mode);
- }
-
- return right;
-}
-
-struct {
- int type; // 0 - unary, 1 - binary, 2 - comp
- union {
- enum gcc_jit_unary_op unary_op;
- enum gcc_jit_binary_op binary_op;
- enum gcc_jit_comparison comp_op;
- };
-} op_table[] = {
- { 0, .unary_op = GCC_JIT_UNARY_OP_MINUS },
- { 0, .unary_op = GCC_JIT_UNARY_OP_BITWISE_NEGATE },
- { 0, .unary_op = GCC_JIT_UNARY_OP_LOGICAL_NEGATE },
- { 0, .unary_op = GCC_JIT_UNARY_OP_ABS },
-
- { 1, .binary_op = GCC_JIT_BINARY_OP_PLUS },
- { 1, .binary_op = GCC_JIT_BINARY_OP_MINUS },
- { 1, .binary_op = GCC_JIT_BINARY_OP_MULT },
- { 1, .binary_op = GCC_JIT_BINARY_OP_DIVIDE },
- { 1, .binary_op = GCC_JIT_BINARY_OP_MODULO },
- { 1, .binary_op = GCC_JIT_BINARY_OP_BITWISE_AND },
- { 1, .binary_op = GCC_JIT_BINARY_OP_BITWISE_XOR },
- { 1, .binary_op = GCC_JIT_BINARY_OP_BITWISE_OR },
- { 1, .binary_op = GCC_JIT_BINARY_OP_LOGICAL_AND },
- { 1, .binary_op = GCC_JIT_BINARY_OP_LOGICAL_OR },
-
- { 2, .comp_op = GCC_JIT_COMPARISON_EQ },
- { 2, .comp_op = GCC_JIT_COMPARISON_NE },
- { 2, .comp_op = GCC_JIT_COMPARISON_LT },
- { 2, .comp_op = GCC_JIT_COMPARISON_LE },
- { 2, .comp_op = GCC_JIT_COMPARISON_GT },
- { 2, .comp_op = GCC_JIT_COMPARISON_GE }
-};
-
-static gcc_jit_rvalue *
-rvalue_from_operator(oberon_context_t * ctx, oberon_oper_t * operator)
-{
- gcc_jit_rvalue * right;
-
- gen_context_t * gen_context = ctx -> gen_context;
- gen_type_t * gen_type = operator -> result -> gen_type;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
- gcc_jit_type * result_type = gen_type -> gcc_type;
-
- int expr_type = op_table[operator -> op].type;
- if(expr_type == 0)
- {
- enum gcc_jit_unary_op op = op_table[operator -> op].unary_op;
- gcc_jit_rvalue * l = rvalue_from_expr(ctx, operator -> left);
- right = gcc_jit_context_new_unary_op(gcc_context, NULL, op, result_type, l);
- }
- else if(expr_type == 1)
- {
- enum gcc_jit_unary_op op = op_table[operator -> op].binary_op;
- gcc_jit_rvalue * l = rvalue_from_expr(ctx, operator -> left);
- gcc_jit_rvalue * r = rvalue_from_expr(ctx, operator -> right);
- right = gcc_jit_context_new_binary_op(gcc_context, NULL, op, result_type, l, r);
- }
- else if(expr_type == 2)
- {
- enum gcc_jit_comparison op = op_table[operator -> op].comp_op;
- gcc_jit_rvalue * l = rvalue_from_expr(ctx, operator -> left);
- gcc_jit_rvalue * r = rvalue_from_expr(ctx, operator -> right);
- right = gcc_jit_context_new_comparison(gcc_context, NULL, op, l, r);
- }
- else
- {
- oberon_error(ctx, "rvalue_from_operator: wat");
- }
-
- return right;
-}
-
-static gcc_jit_rvalue *
-rvalue_from_expr(oberon_context_t * ctx, oberon_expr_t * expr)
-{
- gcc_jit_rvalue * right;
-
- if(expr -> is_item)
- {
- oberon_item_t * item = (oberon_item_t *) expr;
- right = rvalue_from_item(ctx, item);
- }
- else
- {
- oberon_oper_t * operator = (oberon_oper_t *) expr;
- right = rvalue_from_operator(ctx, operator);
- }
-
- return right;
-}
-
-void
-oberon_generate_assign(oberon_context_t * ctx, oberon_expr_t * src, oberon_expr_t * dst)
-{
- gcc_jit_lvalue * left;
- left = lvalue_from_expr(ctx, dst);
-
- gcc_jit_rvalue * right;
- right = rvalue_from_expr(ctx, src);
-
- if(src -> is_item)
- {
- if(src -> item.mode == MODE_NIL)
- {
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
- gen_type_t * gen_type = dst -> result -> gen_type;
- gcc_jit_type * cast_to_type = gen_type -> gcc_type;
- right = gcc_jit_context_new_cast(gcc_context, NULL, right, cast_to_type);
- }
- }
-
- printf("oberon_generate_assign: class %i := class %i\n", dst -> result -> class, src -> result -> class);
-
- gen_context_t * gen_context = ctx -> gen_context;
- gen_block_t * gen_block = gen_context -> block;
- gcc_jit_block * gcc_block = gen_block -> gcc_block;
- gcc_jit_block_add_assignment(gcc_block, NULL, left, right);
-}
-
-void
-oberon_generate_code(oberon_context_t * ctx)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
-
- gcc_jit_result * gcc_result;
- gcc_result = gcc_jit_context_compile(gcc_context);
-
- gen_context -> gcc_result = gcc_result;
-
- typedef void * (*TOberonAlloc)(size_t);
- TOberonAlloc * fn_alloc_ptr = gcc_jit_result_get_global(gcc_result, "__OBERON_ALLOC__");
- *fn_alloc_ptr = __OBERON_ALLOC__;
-
-// ctx -> mod -> begin = gcc_jit_result_get_code(gcc_result, "BEGIN");
-}
-
-void
-oberon_generator_dump(oberon_context_t * ctx, char * path)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_context * gcc_context = gen_context -> gcc_context;
- gcc_jit_context_dump_to_file(gcc_context, path, 0);
-}
-
-void *
-oberon_generator_get_procedure(oberon_context_t * ctx, const char * name)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_result * gcc_result = gen_context -> gcc_result;
-
- return gcc_jit_result_get_code(gcc_result, name);
-}
-
-void *
-oberon_generator_get_var(oberon_context_t * ctx, const char * name)
-{
- gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_result * gcc_result = gen_context -> gcc_result;
-
- return gcc_jit_result_get_global(gcc_result, name);
-}
diff --git a/src/backends/libgccjit/generator-libgccjit.h b/src/backends/libgccjit/generator-libgccjit.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#include <libgccjit.h>
-
-struct gen_proc_t
-{
- gcc_jit_function * gcc_func;
-};
-
-struct gen_type_t
-{
- gcc_jit_type * gcc_type;
- gcc_jit_struct * gcc_struct;
-};
-
-struct gen_var_t
-{
- gcc_jit_lvalue * gcc_lvalue;
- gcc_jit_param * gcc_param;
- gcc_jit_field * gcc_field;
-};
-
-struct gen_block_t
-{
- gcc_jit_block * gcc_block;
- gen_block_t * up;
-};
-
-struct gen_context_t
-{
- gcc_jit_context * gcc_context;
- gcc_jit_result * gcc_result;
- gen_block_t * block;
- unsigned record_count;
- gcc_jit_lvalue * gcc_alloc;
-};
diff --git a/src/backends/libgccjit/notes b/src/backends/libgccjit/notes
+++ /dev/null
@@ -1,63 +0,0 @@
-# 24.07.2017
-
-- libgccjit годится разве что для хелловорлдов.
- Переходим на jvm.
-
-- открытые массивы работкают криво как статические аргументы процедур
- Случай 1: не проходит проверки libgccjit
- (*
- TYPE Ar = ARRAY OF INTEGER;
- VAR a : POINTER TO Ar;
-
- (* так же и с VAR-параметром *)
- PROCEDURE Ax(x : Ar);
- END Ax;
-
- Ax(a);
- *)
- Случай 2: массив должен быть указателем, да и ещё копироваться
- (*
- TYPE Ar = ARRAY OF INTEGER;
- VAR a : POINTER TO Ar;
-
- (* при использовании VAR-параметра работает *)
- PROCEDURE Ax(x : Ar);
- END Ax;
-
- Ax(a^);
- *)
-
-- импортируемые модули не инициализируются (секция begin)
-
-- не реализовано расширение типа record:
- libgccjit не умеет в классы. Проверки в рантайме надо делать вручную.
-- нет проверок границ массивов в рантайме:
- Потому что как минимум нет дескрипторов типа.
- Возможно можно заюзать это:
- https://gcc.gnu.org/onlinedocs/gcc/Pointer-Bounds-Checker-builtins.html
-- При вычислении размера структур не учитывается вравнивание.
- в libgccjit нет средств получения размера типов, в т.ч. структур
- Как происходит выравнивание и есть ли оно вообще по дефолту - не понятно:
- Нужно ли для получения выровненных структур использовать gcc_jit_type_get_aligned?
- Пересекается с этим:
- https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html
- Требуемые выравнивания для типов можно получить через встроинную функцию __alignof__(T)
- https://gcc.gnu.org/onlinedocs/gcc/Alignment.html
- Возможный алгоритм выравнивания:
- https://stackoverflow.com/questions/6963998/how-does-gcc-calculate-the-required-space-for-a-structure
- http://www.rendoc.tech/questions/834444/how-does-gcc-calculate-the-required-space-for-a-structure
- Есть ещё что-то для проверки границ объектов:
- https://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html
-- не понятен результат присваивания статических/разыменованных структур и массивов
- (* reca := recb; *) - побайтовое копирование?
-- не реализовано присваивание процедур к переменным-процедурам:
- в libgccjit нет средств получения указателя на функцию.
- Как решение-костыль - получение указателя в основной программе и сохранение в переменной.
-- не реализован автокаст:
- Не критично: libgccjit сам разруливает типы разных размеров.
-- не реализованы локальные процедуры:
- libgccjit не умеет в локальные функции.
- Обойти можно костылём как в jvm.
-- нет проверок переполнения как в рантайме, так и в компилтайме.
- Возможно можно заюзать это:
- https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html