diff --git a/generator.c b/generator.c
index 07e7bc470ee1b1fb9a337810e695fce530bf16d3..4ffba1173bf23582df014dea6d89d290656afcd3 100644 (file)
--- a/generator.c
+++ b/generator.c
#include <libgccjit.h>
-/*
- * oberon_object_t -> gen_var == gcc_jit_lvalue;
- * oberon_type_t -> gen_type == gcc_jit_type;
- * oberon_context_t -> gen_context == gen_context_t;
- */
-
-typedef struct
-{
- gcc_jit_context * gcc_context;
- gcc_jit_block * gcc_block;
- gcc_jit_result * gcc_result;
-} gen_context_t;
-
static void printcontext(oberon_context_t * ctx, char * s)
{
/*
void
oberon_generator_init_type(oberon_context_t * ctx, oberon_type_t * type)
{
- printcontext(ctx, "oberon_generator_init_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 * gen_type;
- if(type -> class == OBERON_TYPE_INTEGER)
+ gcc_jit_type * gcc_type = NULL;
+ gcc_jit_struct * gcc_struct = NULL;
+ if(type -> class == OBERON_TYPE_VOID)
{
- gen_type = gcc_jit_context_get_int_type(gcc_context, type -> size, 1);
+ 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)
{
- gen_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_BOOL);
+ gcc_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_BOOL);
+ }
+ 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 if(type -> class == OBERON_TYPE_ARRAY)
+ {
+ if(type -> dim != 1)
+ {
+ oberon_error(ctx, "multidimension and open arrays not supported");
+ }
+
+ 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)
+ {
+ // 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_struct = gcc_jit_context_new_struct_type(gcc_context, NULL, "", num_fields, fields);
+ gcc_type = gcc_jit_struct_as_type(gcc_struct);
}
else
{
oberon_error(ctx, "oberon_generator_init_type: invalid type class %i", type -> class);
}
- type -> gen_type = gen_type;
+ gen_type -> gcc_type = gcc_type;
+ gen_type -> gcc_struct = gcc_struct;
}
void
oberon_generator_init_var(oberon_context_t * ctx, oberon_object_t * var)
{
- printcontext(ctx, "oberon_generator_init_var");
- assert(var -> class == OBERON_CLASS_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 * gen_type = var -> type -> gen_type;
+ gcc_jit_type * gcc_type = gen_type -> gcc_type;
const char * name = var -> name;
- gcc_jit_lvalue * gen_var;
- gen_var = gcc_jit_context_new_global(gcc_context, NULL, GCC_JIT_GLOBAL_INTERNAL, gen_type, name);
+ // TODO var param
+ gcc_jit_lvalue * gcc_lvalue = NULL;
+ gcc_jit_param * gcc_param = NULL;
+ gcc_jit_field * gcc_field = NULL;
+ if(var -> class == OBERON_CLASS_VAR)
+ {
+ gcc_lvalue = gcc_jit_context_new_global(
+ gcc_context, NULL, GCC_JIT_GLOBAL_INTERNAL, 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_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);
+ }
- var -> gen_var = gen_var;
+ gen_var -> gcc_lvalue = gcc_lvalue;
+ gen_var -> gcc_param = gcc_param;
+ gen_var -> gcc_field = gcc_field;
}
void
gen_context_t * gen_context = ctx -> gen_context;
gcc_jit_context * gcc_context = gen_context -> gcc_context;
- //gcc_jit_type * gen_type = proc -> type -> gen_type;
- const char * name = proc -> name;
- gcc_jit_function * gen_proc;
+ gen_proc_t * gen_proc = malloc(sizeof *gen_proc);
+ memset(gen_proc, 0, sizeof *gen_proc);
+ proc -> gen_proc = gen_proc;
- // TODO make real signature
- gcc_jit_type * void_type = gcc_jit_context_get_type(gcc_context, GCC_JIT_TYPE_VOID);
- gen_proc = gcc_jit_context_new_function(
- gcc_context, NULL, GCC_JIT_FUNCTION_EXPORTED, void_type, name, 0, NULL, 0
+ const char * name = proc -> name;
+ 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
);
- proc -> gen_proc = gen_proc;
+ 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);
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 = proc -> gen_proc;
+ gcc_jit_function * func = gen_proc -> gcc_func;
gcc_jit_block * gcc_block = gcc_jit_function_new_block(func, NULL);
// TODO make stack for block
void
oberon_generate_end_proc(oberon_context_t * ctx)
+{
+ gen_context_t * gen_context = ctx -> gen_context;
+ gen_context -> gcc_block = NULL;
+}
+
+void
+oberon_generate_return(oberon_context_t * ctx, oberon_expr_t * expr)
{
gen_context_t * gen_context = ctx -> gen_context;
gcc_jit_block * gcc_block = gen_context -> gcc_block;
- gcc_jit_block_end_with_void_return(gcc_block, NULL);
+ 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);
+ }
+}
- gen_context -> gcc_block = NULL;
+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)
+ {
+ gen_var_t * gen_var = item -> var -> gen_var;
+ left = gen_var -> gcc_lvalue;
+ }
+ 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)
+ {
+ 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
+ {
+ oberon_error(ctx, "invalid lvalue expression");
+ }
+
+ return left;
}
static gcc_jit_lvalue *
if(expr -> is_item)
{
item = (oberon_item_t *) expr;
- if(item -> mode != MODE_VAR)
- {
- oberon_error(ctx, "invalid lvalue expression");
- }
- left = item -> var -> gen_var;
+ left = lvalue_from_item(ctx, item);
}
else
{
gcc_jit_rvalue * right;
if(item -> mode == MODE_VAR)
{
- assert(item -> var -> class == OBERON_CLASS_VAR);
- gcc_jit_lvalue * gen_var = item -> var -> gen_var;
- right = gcc_jit_lvalue_as_rvalue(gen_var);
+ assert(item -> var -> class == OBERON_CLASS_VAR
+ || item -> var -> class == OBERON_CLASS_PARAM);
+ gen_var_t * gen_var = item -> var -> gen_var;
+ right = gcc_jit_lvalue_as_rvalue(gen_var -> gcc_lvalue);
}
else if(item -> mode == MODE_INTEGER)
{
else if(item -> mode == MODE_CALL)
{
assert(item -> var -> class == OBERON_CLASS_PROC);
- /* TODO args */
- gcc_jit_function * func = item -> var -> gen_proc;
+
+ 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;
+ for(int i = 0; i < num_args; i++)
+ {
+ args[i] = rvalue_from_expr(ctx, expr);
+ expr = expr -> next;
+ }
+
+ gcc_jit_function * func = gen_proc -> gcc_func;
right = gcc_jit_context_new_call(
- gcc_context, NULL, func, 0, NULL
+ gcc_context, NULL, func, num_args, args
);
}
+ 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
{
- oberon_error(ctx, "oberon_generate_push: invalid mode %i", item -> mode);
+ oberon_error(ctx, "rvalue_from_item: invalid mode %i", item -> mode);
}
return right;
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 = operator -> result -> gen_type;
+ gcc_jit_type * result_type = gen_type -> gcc_type;
int expr_type = op_table[operator -> op].type;
if(expr_type == 0)