glsl: Reject structure constructors that have too many arguments.

Fixes piglit test constructor-27.vert.

diff --git a/src/glsl/ast_function.cpp b/src/glsl/ast_function.cpp
index 1cd300c382d6bb214411caacf52d63c160558637..c3b4441435fdce54f3cf4affb335e0e891b62d0c 100644 (file)
--- a/src/glsl/ast_function.cpp
+++ b/src/glsl/ast_function.cpp
@@ -1207,6 +1207,12 @@ ast_function_expression::hir(exec_list *instructions,
            node = node->next;
         }
 
+        if (!node->is_tail_sentinel()) {
+           _mesa_glsl_error(&loc, state, "too many parameters in constructor "
+                            "for `%s'", type->name);
+           return ir_call::get_error_instruction(ctx);
+        }
+
         ir_rvalue *const constant =
            constant_record_constructor(type, &actual_parameters, state);