- return 1;
-
- case GLSL_TYPE_SAMPLER:
- case GLSL_TYPE_STRUCT:
- /* Samplers and structures must match exactly.
- */
- return -1;
-
- case GLSL_TYPE_ARRAY:
- if ((b->base_type != GLSL_TYPE_ARRAY)
- || (a->length != b->length))
- return -1;
-
- /* From GLSL 1.50 spec, page 27 (page 33 of the PDF):
- * "There are no implicit array or structure conversions."
- *
- * If the comparison of the array element types detects that a conversion
- * would be required, the array types do not match.
- */
- return (type_compare(a->fields.array, b->fields.array) == 0) ? 0 : -1;
-
- case GLSL_TYPE_FUNCTION:
- case GLSL_TYPE_VOID:
- case GLSL_TYPE_ERROR:
- default:
- /* These are all error conditions. It is invalid for a parameter to
- * a function to be declared as error, void, or a function.
- */
- return -1;
- }
-
- /* This point should be unreachable.
- */
- assert(0);
-}
-
-
-static int
-parameter_lists_match(exec_list *list_a, exec_list *list_b)
-{
- exec_list_iterator iter_a = list_a->iterator();
- exec_list_iterator iter_b = list_b->iterator();
- int total_score = 0;
-
- for (/* empty */ ; iter_a.has_next(); iter_a.next(), iter_b.next()) {