glsl2: fix signed/unsigned comparison warning

diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 2edf01b..227dfdb 100644 (file)
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -898,8 +898,8 @@ ir_to_mesa_visitor::visit(ir_variable *ir)
               if (storage->index == -1) {
                  storage->index = index;
               } else {
-                 assert(index == ((int)storage->index +
-                                  a * statevar->num_elements + i));
+                 assert(index ==
+                         (int)(storage->index + a * statevar->num_elements + i));
               }
            } else {
               ir_to_mesa_src_reg src(PROGRAM_STATE_VAR, index, NULL);