if (!self) { \
return NULL; \
} \
- ast_node_init((ast_node*)self, ctx); \
+ ast_node_init((ast_node*)self, ctx, TYPE_##T); \
( (ast_node*)self )->node.destroy = (ast_node_delete*)destroyfn
+/* error handling */
+static void asterror(lex_ctx ctx, const char *msg, ...)
+{
+ va_list ap;
+ va_start(ap, msg);
+ cvprintmsg(ctx, LVL_ERROR, "error", msg, ap);
+ va_end(ap);
+}
+
/* It must not be possible to get here. */
static GMQCC_NORETURN void _ast_node_destroy(ast_node *self)
{
}
/* Initialize main ast node aprts */
-static void ast_node_init(ast_node *self, lex_ctx ctx)
+static void ast_node_init(ast_node *self, lex_ctx ctx, int nodetype)
{
self->node.context = ctx;
self->node.destroy = &_ast_node_destroy;
self->node.keep = false;
+ self->node.nodetype = nodetype;
}
/* General expression initialization */
self->expression.codegen = codegen;
self->expression.vtype = TYPE_VOID;
self->expression.next = NULL;
+ self->expression.outl = NULL;
+ self->expression.outr = NULL;
MEM_VECTOR_INIT(&self->expression, params);
}
return cp;
}
+static ast_expression* ast_shallow_type(lex_ctx ctx, int vtype)
+{
+ ast_instantiate(ast_expression, ctx, ast_expression_delete_full);
+ self->expression.codegen = NULL;
+ self->expression.next = NULL;
+ self->expression.vtype = vtype;
+ return self;
+}
+
static ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
{
size_t i;
}
}
+bool ast_compare_type(ast_expression *a, ast_expression *b)
+{
+ if (a->expression.vtype != b->expression.vtype)
+ return false;
+ if (!a->expression.next != !b->expression.next)
+ return false;
+ if (a->expression.params_count != b->expression.params_count)
+ return false;
+ if (a->expression.params_count) {
+ size_t i;
+ for (i = 0; i < a->expression.params_count; ++i) {
+ if (!ast_compare_type((ast_expression*)a->expression.params[i],
+ (ast_expression*)b->expression.params[i]))
+ return false;
+ }
+ }
+ if (a->expression.next)
+ return ast_compare_type(a->expression.next, b->expression.next);
+ return true;
+}
+
ast_value* ast_value_new(lex_ctx ctx, const char *name, int t)
{
ast_instantiate(ast_value, ctx, ast_value_delete);
self->left = left;
self->right = right;
+ if (op >= INSTR_EQ_F && op <= INSTR_GT)
+ self->expression.vtype = TYPE_FLOAT;
+ else if (op == INSTR_AND || op == INSTR_OR ||
+ op == INSTR_BITAND || op == INSTR_BITOR)
+ self->expression.vtype = TYPE_FLOAT;
+ else if (op == INSTR_MUL_VF || op == INSTR_MUL_FV)
+ self->expression.vtype = TYPE_VECTOR;
+ else if (op == INSTR_MUL_V)
+ self->expression.vtype = TYPE_FLOAT;
+ else
+ self->expression.vtype = left->expression.vtype;
+
return self;
}
mem_d(self);
}
+ast_binstore* ast_binstore_new(lex_ctx ctx, int storop, int op,
+ ast_expression* left, ast_expression* right)
+{
+ ast_instantiate(ast_binstore, ctx, ast_binstore_delete);
+ ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_binstore_codegen);
+
+ self->opstore = storop;
+ self->opbin = op;
+ self->dest = left;
+ self->source = right;
+
+ self->expression.vtype = left->expression.vtype;
+ if (left->expression.next) {
+ self->expression.next = ast_type_copy(ctx, left);
+ if (!self->expression.next) {
+ ast_delete(self);
+ return NULL;
+ }
+ }
+ else
+ self->expression.next = NULL;
+
+ return self;
+}
+
+void ast_binstore_delete(ast_binstore *self)
+{
+ ast_unref(self->dest);
+ ast_unref(self->source);
+ ast_expression_delete((ast_expression*)self);
+ mem_d(self);
+}
+
ast_unary* ast_unary_new(lex_ctx ctx, int op,
ast_expression *expr)
{
mem_d(self);
}
+ast_member* ast_member_new(lex_ctx ctx, ast_expression *owner, unsigned int field)
+{
+ ast_instantiate(ast_member, ctx, ast_member_delete);
+ if (field >= 3) {
+ mem_d(self);
+ return NULL;
+ }
+
+ if (owner->expression.vtype != TYPE_VECTOR &&
+ owner->expression.vtype != TYPE_FIELD) {
+ asterror(ctx, "member-access on an invalid owner of type %s\n", type_name[owner->expression.vtype]);
+ mem_d(self);
+ return NULL;
+ }
+
+ ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_member_codegen);
+
+ if (owner->expression.vtype == TYPE_VECTOR) {
+ self->expression.vtype = TYPE_FLOAT;
+ self->expression.next = NULL;
+ } else {
+ self->expression.vtype = TYPE_FIELD;
+ self->expression.next = ast_shallow_type(ctx, TYPE_FLOAT);
+ }
+
+ self->owner = owner;
+ self->field = field;
+
+ return self;
+}
+
+void ast_member_delete(ast_member *self)
+{
+ ast_unref(self->owner);
+ ast_expression_delete((ast_expression*)self);
+ mem_d(self);
+}
+
ast_ifthen* ast_ifthen_new(lex_ctx ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse)
{
ast_instantiate(ast_ifthen, ctx, ast_ifthen_delete);
}
ast_store* ast_store_new(lex_ctx ctx, int op,
- ast_value *dest, ast_expression *source)
+ ast_expression *dest, ast_expression *source)
{
ast_instantiate(ast_store, ctx, ast_store_delete);
ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_store_codegen);
}
MEM_VEC_FUNCTIONS(ast_block, ast_value*, locals)
MEM_VEC_FUNCTIONS(ast_block, ast_expression*, exprs)
+MEM_VEC_FUNCTIONS(ast_block, ast_expression*, collect)
void ast_block_delete(ast_block *self)
{
size_t i;
+ for (i = 0; i < self->collect_count; ++i)
+ ast_unref(self->collect[i]);
+ MEM_VECTOR_CLEAR(self, collect);
for (i = 0; i < self->exprs_count; ++i)
ast_unref(self->exprs[i]);
MEM_VECTOR_CLEAR(self, exprs);
* on all the globals.
*/
if (!self->ir_v) {
- printf("ast_value used before generated (%s)\n", self->name);
+ asterror(ast_ctx(self), "ast_value used before generated (%s)\n", self->name);
return false;
}
*out = self->ir_v;
return true;
}
+ if (self->expression.vtype == TYPE_FIELD) {
+ v = ir_builder_create_field(ir, self->name, self->expression.next->expression.vtype);
+ if (!v)
+ return false;
+ if (self->isconst) {
+ asterror(ast_ctx(self), "TODO: constant field pointers with value\n");
+ goto error;
+ }
+ self->ir_v = v;
+ return true;
+ }
+
v = ir_builder_create_global(ir, self->name, self->expression.vtype);
- if (!v)
+ if (!v) {
+ asterror(ast_ctx(self), "ir_builder_create_global failed\n");
return false;
+ }
if (self->isconst) {
switch (self->expression.vtype)
goto error;
break;
case TYPE_FUNCTION:
- printf("global of type function not properly generated\n");
+ asterror(ast_ctx(self), "global of type function not properly generated\n");
goto error;
/* Cannot generate an IR value for a function,
* need a pointer pointing to a function rather.
*/
default:
- printf("TODO: global constant type %i\n", self->expression.vtype);
+ asterror(ast_ctx(self), "TODO: global constant type %i\n", self->expression.vtype);
break;
}
}
goto error;
break;
default:
- printf("TODO: global constant type %i\n", self->expression.vtype);
+ asterror(ast_ctx(self), "TODO: global constant type %i\n", self->expression.vtype);
break;
}
}
irf = self->ir_func;
if (!irf) {
- printf("ast_function's related ast_value was not generated yet\n");
+ asterror(ast_ctx(self), "ast_function's related ast_value was not generated yet\n");
return false;
}
return true;
}
+ if (!self->blocks_count) {
+ asterror(ast_ctx(self), "function `%s` has no body", self->name);
+ return false;
+ }
+
self->curblock = ir_function_create_block(irf, "entry");
if (!self->curblock)
return false;
else
{
/* error("missing return"); */
+ asterror(ast_ctx(self), "function `%s` missing return value", self->name);
return false;
}
}
* of the form: (a, b, c) = x should not assign to c...
*/
(void)lvalue;
+ if (self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
/* output is NULL at first, we'll have each expression
* assign to out output, thus, a comma-operator represention
return false;
}
+ self->expression.outr = *out;
+
return true;
}
ast_expression_codegen *cgen;
ir_value *left, *right;
+ if (lvalue && self->expression.outl) {
+ *out = self->expression.outl;
+ return true;
+ }
+
+ if (!lvalue && self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
+
cgen = self->dest->expression.codegen;
/* lvalue! */
if (!(*cgen)((ast_expression*)(self->dest), func, true, &left))
return false;
+ self->expression.outl = left;
cgen = self->source->expression.codegen;
/* rvalue! */
if (!ir_block_create_store_op(func->curblock, self->op, left, right))
return false;
+ self->expression.outr = right;
/* Theoretically, an assinment returns its left side as an
* lvalue, if we don't need an lvalue though, we return
/* In the context of a binary operation, we can disregard
* the lvalue flag.
*/
- (void)lvalue;
+ (void)lvalue;
+ if (self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
cgen = self->left->expression.codegen;
/* lvalue! */
self->op, left, right);
if (!*out)
return false;
+ self->expression.outr = *out;
+
+ return true;
+}
+
+bool ast_binstore_codegen(ast_binstore *self, ast_function *func, bool lvalue, ir_value **out)
+{
+ ast_expression_codegen *cgen;
+ ir_value *leftl, *leftr, *right, *bin;
+
+ if (lvalue && self->expression.outl) {
+ *out = self->expression.outl;
+ return true;
+ }
+
+ if (!lvalue && self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
+
+ /* for a binstore we need both an lvalue and an rvalue for the left side */
+ /* rvalue of destination! */
+ cgen = self->dest->expression.codegen;
+ if (!(*cgen)((ast_expression*)(self->dest), func, false, &leftr))
+ return false;
+
+ /* source as rvalue only */
+ cgen = self->source->expression.codegen;
+ if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
+ return false;
+
+ /* now the binary */
+ bin = ir_block_create_binop(func->curblock, ast_function_label(func, "binst"),
+ self->opbin, leftr, right);
+ self->expression.outr = bin;
+
+ /* now store them */
+ cgen = self->dest->expression.codegen;
+ /* lvalue of destination */
+ if (!(*cgen)((ast_expression*)(self->dest), func, true, &leftl))
+ return false;
+ self->expression.outl = leftl;
+
+ if (!ir_block_create_store_op(func->curblock, self->opstore, leftl, bin))
+ return false;
+ self->expression.outr = bin;
+
+ /* Theoretically, an assinment returns its left side as an
+ * lvalue, if we don't need an lvalue though, we return
+ * the right side as an rvalue, otherwise we have to
+ * somehow know whether or not we need to dereference the pointer
+ * on the left side - that is: OP_LOAD if it was an address.
+ * Also: in original QC we cannot OP_LOADP *anyway*.
+ */
+ *out = (lvalue ? leftl : bin);
return true;
}
* the lvalue flag.
*/
(void)lvalue;
+ if (self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
cgen = self->operand->expression.codegen;
/* lvalue! */
self->op, operand);
if (!*out)
return false;
+ self->expression.outr = *out;
return true;
}
* the lvalue flag.
*/
(void)lvalue;
+ if (self->expression.outr) {
+ asterror(ast_ctx(self), "internal error: ast_return cannot be reused, it bears no result!\n");
+ return false;
+ }
+ self->expression.outr = (ir_value*)1;
cgen = self->operand->expression.codegen;
/* lvalue! */
* value in a temp.
*/
+ if (lvalue && self->expression.outl) {
+ *out = self->expression.outl;
+ return true;
+ }
+
+ if (!lvalue && self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
+
cgen = self->entity->expression.codegen;
if (!(*cgen)((ast_expression*)(self->entity), func, false, &ent))
return false;
*out = ir_block_create_load_from_ent(func->curblock, ast_function_label(func, "efv"),
ent, field, self->expression.vtype);
}
- if (!*out)
+ if (!*out) {
+ asterror(ast_ctx(self), "failed to create %s instruction (output type %s)",
+ (lvalue ? "ADDRESS" : "FIELD"),
+ type_name[self->expression.vtype]);
return false;
+ }
+
+ if (lvalue)
+ self->expression.outl = *out;
+ else
+ self->expression.outr = *out;
/* Hm that should be it... */
return true;
}
+bool ast_member_codegen(ast_member *self, ast_function *func, bool lvalue, ir_value **out)
+{
+ ast_expression_codegen *cgen;
+ ir_value *vec;
+
+ /* in QC this is always an lvalue */
+ (void)lvalue;
+ if (self->expression.outl) {
+ *out = self->expression.outl;
+ return true;
+ }
+
+ cgen = self->owner->expression.codegen;
+ if (!(*cgen)((ast_expression*)(self->owner), func, true, &vec))
+ return false;
+
+ if (vec->vtype != TYPE_VECTOR &&
+ !(vec->vtype == TYPE_FIELD && self->owner->expression.next->expression.vtype == TYPE_VECTOR))
+ {
+ return false;
+ }
+
+ *out = ir_value_vector_member(vec, self->field);
+ self->expression.outl = *out;
+
+ return (*out != NULL);
+}
+
bool ast_ifthen_codegen(ast_ifthen *self, ast_function *func, bool lvalue, ir_value **out)
{
ast_expression_codegen *cgen;
(void)out;
(void)lvalue;
+ if (self->expression.outr) {
+ asterror(ast_ctx(self), "internal error: ast_ifthen cannot be reused, it bears no result!\n");
+ return false;
+ }
+ self->expression.outr = (ir_value*)1;
+
/* generate the condition */
func->curblock = cond;
cgen = self->cond->expression.codegen;
ir_block *onfalse;
ir_block *merge;
+ /* Ternary can never create an lvalue... */
+ if (lvalue)
+ return false;
+
/* In theory it shouldn't be possible to pass through a node twice, but
* in case we add any kind of optimization pass for the AST itself, it
* may still happen, thus we remember a created ir_value and simply return one
return true;
}
- /* Ternary can never create an lvalue... */
- if (lvalue)
- return false;
-
/* In the following, contraty to ast_ifthen, we assume both paths exist. */
/* generate the condition */
(void)lvalue;
(void)out;
+ if (self->expression.outr) {
+ asterror(ast_ctx(self), "internal error: ast_loop cannot be reused, it bears no result!\n");
+ return false;
+ }
+ self->expression.outr = (ir_value*)1;
+
/* NOTE:
* Should we ever need some kind of block ordering, better make this function
* move blocks around than write a block ordering algorithm later... after all
ir_value *funval = NULL;
- /* return values are never rvalues */
+ /* return values are never lvalues */
(void)lvalue;
+ if (self->expression.outr) {
+ *out = self->expression.outr;
+ return true;
+ }
+
cgen = self->func->expression.codegen;
if (!(*cgen)((ast_expression*)(self->func), func, false, &funval))
return false;
}
*out = ir_call_value(callinstr);
+ self->expression.outr = *out;
MEM_VECTOR_CLEAR(¶ms, v);
return true;
projects / xonotic / gmqcc.git / blobdiff