glsl: Add ir_var_shader_storage

This will be used to identify buffer variables inside shader storage
buffer objects, which are very similar to uniforms except for a few
differences, most important of which is that they are writable.

Since buffer variables are so similar to uniforms, we will almost always
want them to go through the same paths as uniforms.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index a765d35..aba1750 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -436,11 +436,12 @@ builtin_variable_generator::add_variable(const char *name,
       var->data.read_only = true;
       break;
    case ir_var_shader_out:
+   case ir_var_shader_storage:
       break;
    default:
       /* The only variables that are added using this function should be
-       * uniforms, shader inputs, and shader outputs, constants (which use
-       * ir_var_auto), and system values.
+       * uniforms, shader storage, shader inputs, and shader outputs, constants
+       * (which use ir_var_auto), and system values.
        */
       assert(0);
       break;