glsl: introduce data section to ir_variable

Data section helps serialization and cloning of a ir_variable. This
patch includes the helper bits used for read only ir_variables.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/glsl/opt_cse.cpp b/src/glsl/opt_cse.cpp
index 8f73940..a2b63ee 100644
--- a/src/glsl/opt_cse.cpp
+++ b/src/glsl/opt_cse.cpp
@@ -193,7 +193,7 @@ is_cse_candidate_visitor::visit(ir_dereference_variable *ir)
    /* Currently, since we don't handle kills of the ae based on variables
     * getting assigned, we can only handle constant variables.
     */
-   if (ir->var->read_only) {
+   if (ir->var->data.read_only) {
       return visit_continue;
    } else {
       ok = false;