YYLTYPE loc = actual_ast->get_location();
/* Verify that 'const_in' parameters are ir_constants. */
- if (formal->mode == ir_var_const_in &&
+ if (formal->data.mode == ir_var_const_in &&
actual->ir_type != ir_type_constant) {
_mesa_glsl_error(&loc, state,
"parameter `in %s' must be a constant expression",
}
/* Verify that 'out' and 'inout' actual parameters are lvalues. */
- if (formal->mode == ir_var_function_out
- || formal->mode == ir_var_function_inout) {
+ if (formal->data.mode == ir_var_function_out
+ || formal->data.mode == ir_var_function_inout) {
const char *mode = NULL;
- switch (formal->mode) {
+ switch (formal->data.mode) {
case ir_var_function_out: mode = "out"; break;
case ir_var_function_inout: mode = "inout"; break;
default: assert(false); break;
ir_variable *var = actual->variable_referenced();
if (var)
- var->assigned = true;
+ var->data.assigned = true;
- if (var && var->read_only) {
+ if (var && var->data.read_only) {
_mesa_glsl_error(&loc, state,
"function parameter '%s %s' references the "
"read-only variable '%s'",
}
/**
- * If a function call is generated, \c call_ir will point to it on exit.
- * Otherwise \c call_ir will be set to \c NULL.
+ * Generate a function call.
+ *
+ * For non-void functions, this returns a dereference of the temporary variable
+ * which stores the return value for the call. For void functions, this returns
+ * NULL.
*/
static ir_rvalue *
generate_call(exec_list *instructions, ir_function_signature *sig,
exec_list *actual_parameters,
- ir_call **call_ir,
struct _mesa_glsl_parse_state *state)
{
void *ctx = state;
exec_list post_call_conversions;
- *call_ir = NULL;
-
/* Perform implicit conversion of arguments. For out parameters, we need
* to place them in a temporary variable and do the conversion after the
* call takes place. Since we haven't emitted the call yet, we'll place
* the post-call conversions in a temporary exec_list, and emit them later.
*/
- exec_list_iterator actual_iter = actual_parameters->iterator();
- exec_list_iterator formal_iter = sig->parameters.iterator();
-
- while (actual_iter.has_next()) {
- ir_rvalue *actual = (ir_rvalue *) actual_iter.get();
- ir_variable *formal = (ir_variable *) formal_iter.get();
-
- assert(actual != NULL);
- assert(formal != NULL);
+ foreach_two_lists(formal_node, &sig->parameters,
+ actual_node, actual_parameters) {
+ ir_rvalue *actual = (ir_rvalue *) actual_node;
+ ir_variable *formal = (ir_variable *) formal_node;
if (formal->type->is_numeric() || formal->type->is_boolean()) {
- switch (formal->mode) {
+ switch (formal->data.mode) {
case ir_var_const_in:
case ir_var_function_in: {
ir_rvalue *converted
case ir_var_function_inout:
fix_parameter(ctx, actual, formal->type,
instructions, &post_call_conversions,
- formal->mode == ir_var_function_inout);
+ formal->data.mode == ir_var_function_inout);
break;
default:
assert (!"Illegal formal parameter mode");
break;
}
}
-
- actual_iter.next();
- formal_iter.next();
}
/* If the function call is a constant expression, don't generate any
if (f != NULL) {
/* Look for a match in the local shader. If exact, we're done. */
bool is_exact = false;
- sig = local_sig = f->matching_signature(actual_parameters, &is_exact);
+ sig = local_sig = f->matching_signature(state, actual_parameters,
+ &is_exact);
if (is_exact)
goto done;
}
/* Local shader has no exact candidates; check the built-ins. */
- _mesa_glsl_initialize_functions(state);
- for (unsigned i = 0; i < state->num_builtins_to_link; i++) {
- ir_function *builtin =
- state->builtins_to_link[i]->symbols->get_function(name);
- if (builtin == NULL)
- continue;
-
- bool is_exact = false;
- ir_function_signature *builtin_sig =
- builtin->matching_signature(actual_parameters, &is_exact);
-
- if (builtin_sig == NULL)
- continue;
-
- /* If the built-in signature is exact, we can stop. */
- if (is_exact) {
- sig = builtin_sig;
- goto done;
- }
-
- if (sig == NULL) {
- /* We found an inexact match, which is better than nothing. However,
- * we should keep searching for an exact match.
- */
- sig = builtin_sig;
- }
- }
+ _mesa_glsl_initialize_builtin_functions();
+ sig = _mesa_glsl_find_builtin_function(state, name, actual_parameters);
done:
if (sig != NULL) {
return sig;
}
+static void
+print_function_prototypes(_mesa_glsl_parse_state *state, YYLTYPE *loc,
+ ir_function *f)
+{
+ if (f == NULL)
+ return;
+
+ foreach_list (node, &f->signatures) {
+ ir_function_signature *sig = (ir_function_signature *) node;
+
+ if (sig->is_builtin() && !sig->is_builtin_available(state))
+ continue;
+
+ char *str = prototype_string(sig->return_type, f->name, &sig->parameters);
+ _mesa_glsl_error(loc, state, " %s", str);
+ ralloc_free(str);
+ }
+}
+
/**
* Raise a "no matching function" error, listing all possible overloads the
* compiler considered so developers can figure out what went wrong.
exec_list *actual_parameters,
_mesa_glsl_parse_state *state)
{
- char *str = prototype_string(NULL, name, actual_parameters);
- _mesa_glsl_error(loc, state, "no matching function for call to `%s'", str);
- ralloc_free(str);
-
- const char *prefix = "candidates are: ";
+ gl_shader *sh = _mesa_glsl_get_builtin_function_shader();
- for (int i = -1; i < (int) state->num_builtins_to_link; i++) {
- glsl_symbol_table *syms = i >= 0 ? state->builtins_to_link[i]->symbols
- : state->symbols;
- ir_function *f = syms->get_function(name);
- if (f == NULL)
- continue;
-
- foreach_list (node, &f->signatures) {
- ir_function_signature *sig = (ir_function_signature *) node;
+ if (state->symbols->get_function(name) == NULL
+ && (!state->uses_builtin_functions
+ || sh->symbols->get_function(name) == NULL)) {
+ _mesa_glsl_error(loc, state, "no function with name '%s'", name);
+ } else {
+ char *str = prototype_string(NULL, name, actual_parameters);
+ _mesa_glsl_error(loc, state,
+ "no matching function for call to `%s'; candidates are:",
+ str);
+ ralloc_free(str);
- str = prototype_string(sig->return_type, f->name, &sig->parameters);
- _mesa_glsl_error(loc, state, "%s%s", prefix, str);
- ralloc_free(str);
+ print_function_prototypes(state, loc, state->symbols->get_function(name));
- prefix = " ";
+ if (state->uses_builtin_functions) {
+ print_function_prototypes(state, loc, sh->symbols->get_function(name));
}
}
}
* int i = { 1 }; // illegal, i is not an aggregate"
*/
if (constructor_type->vector_elements <= 1) {
- _mesa_glsl_error(loc, state, "Aggregates can only initialize vectors, "
+ _mesa_glsl_error(loc, state, "aggregates can only initialize vectors, "
"matrices, arrays, and structs");
return ir_rvalue::error_value(ctx);
}
exec_list actual_parameters;
const unsigned parameter_count =
process_parameters(instructions, &actual_parameters, parameters, state);
+ bool is_unsized_array = constructor_type->is_unsized_array();
- if ((parameter_count == 0)
- || ((constructor_type->length != 0)
- && (constructor_type->length != parameter_count))) {
- const unsigned min_param = (constructor_type->length == 0)
- ? 1 : constructor_type->length;
+ if ((parameter_count == 0) ||
+ (!is_unsized_array && (constructor_type->length != parameter_count))) {
+ const unsigned min_param = is_unsized_array
+ ? 1 : constructor_type->length;
_mesa_glsl_error(loc, state, "array constructor must have %s %u "
"parameter%s",
- (constructor_type->length == 0) ? "at least" : "exactly",
+ is_unsized_array ? "at least" : "exactly",
min_param, (min_param <= 1) ? "" : "s");
return ir_rvalue::error_value(ctx);
}
- if (constructor_type->length == 0) {
+ if (is_unsized_array) {
constructor_type =
glsl_type::get_array_instance(constructor_type->element_type(),
parameter_count);
} else {
const ast_expression *id = subexpressions[0];
const char *func_name = id->primary_expression.identifier;
- YYLTYPE loc = id->get_location();
+ YYLTYPE loc = get_location();
exec_list actual_parameters;
process_parameters(instructions, &actual_parameters, &this->expressions,
ir_function_signature *sig =
match_function_by_name(func_name, &actual_parameters, state);
- ir_call *call = NULL;
ir_rvalue *value = NULL;
if (sig == NULL) {
no_matching_function_error(func_name, &loc, &actual_parameters, state);
/* an error has already been emitted */
value = ir_rvalue::error_value(ctx);
} else {
- value = generate_call(instructions, sig, &actual_parameters,
- &call, state);
+ value = generate_call(instructions, sig, &actual_parameters, state);
}
return value;
void *ctx = state;
YYLTYPE loc = this->get_location();
const char *name;
+
+ if (!this->constructor_type) {
+ _mesa_glsl_error(&loc, state, "type of C-style initializer unknown");
+ return ir_rvalue::error_value(ctx);
+ }
const glsl_type *const constructor_type =
this->constructor_type->glsl_type(&name, state);
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