diff --git a/generator.c b/generator.c
index 21506b0626fe5db7cfbd117a444d2295de3448a2..709e5a65cbfb513cd502e2bf7d70383b89468449 100644 (file)
--- a/generator.c
+++ b/generator.c
#include "oberon.h"
#include "generator.h"
-#include <libgccjit.h>
-
-/*
- * oberon_var_t -> gvar == gcc_jit_lvalue;
- * oberon_type_t -> gtype == gcc_jit_type;
- * oberon_context_t -> gctx == 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)
{
/*
// 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)
{
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_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);
}
- type -> gen_type = gen_type;
+ assert(gcc_type);
+ gen_type -> gcc_type = gcc_type;
+ gen_type -> gcc_struct = gcc_struct;
}
void
-oberon_generator_init_var(oberon_context_t * ctx, oberon_var_t * var)
+oberon_generator_init_record(oberon_context_t * ctx, oberon_type_t * type)
{
- printcontext(ctx, "oberon_generator_init_var");
+ 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);
+}
+
+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 * 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);
+ 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_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_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);
+ }
- var -> gen_var = gen_var;
+ 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;
+
+ 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
+ );
+
+ 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_module(oberon_context_t * ctx)
{
);
gcc_jit_block * gcc_block = gcc_jit_function_new_block(func, NULL);
- gen_context -> gcc_block = gcc_block;
+ oberon_generator_open_block(gen_context, gcc_block);
}
void
printcontext(ctx, "oberon_generate_end_module");
gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_block * gcc_block = gen_context -> gcc_block;
+ gcc_jit_block * gcc_block = gen_context -> block -> gcc_block;
gcc_jit_block_end_with_void_return(gcc_block, NULL);
- gen_context -> 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)
+ {
+ 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, "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
{
return left;
}
-static gcc_jit_rvalue * rvalue_from_expr(oberon_context_t * ctx, oberon_expr_t * expr);
-
static gcc_jit_rvalue *
rvalue_from_item(oberon_context_t * ctx, oberon_item_t * item)
{
gcc_jit_rvalue * right;
if(item -> mode == MODE_VAR)
{
- gcc_jit_lvalue * gen_var = item -> var -> gen_var;
- right = gcc_jit_lvalue_as_rvalue(gen_var);
+ gcc_jit_lvalue * left = lvalue_from_item(ctx, item);
+ right = gcc_jit_lvalue_as_rvalue(left);
}
else if(item -> mode == MODE_INTEGER)
{
right = gcc_jit_context_zero(gcc_context, bool_type);
}
}
+ else if(item -> mode == MODE_CALL)
+ {
+ assert(item -> var -> class == OBERON_CLASS_PROC);
+
+ 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_function * func = gen_proc -> gcc_func;
+ right = gcc_jit_context_new_call(
+ 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 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
{
- oberon_error(ctx, "oberon_generate_push: invalid mode %i", item -> mode);
+ oberon_error(ctx, "rvalue_from_item: invalid mode %i", item -> mode);
}
return right;
enum gcc_jit_comparison comp_op;
};
} op_table[] = {
- { 0, .unary_op = GCC_JIT_UNARY_OP_LOGICAL_NEGATE },
{ 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 },
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)
@@ -297,8 +610,21 @@ oberon_generate_assign(oberon_context_t * ctx, oberon_expr_t * src, oberon_expr_
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);
+ }
+ }
+
gen_context_t * gen_context = ctx -> gen_context;
- gcc_jit_block * gcc_block = gen_context -> gcc_block;
+ 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);
}
gen_context -> gcc_result = gcc_result;
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);
+}