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, 11 insertions, 5 deletions

diff --git a/src/glsl/glsl_symbol_table.cpp b/src/glsl/glsl_symbol_table.cpp
index 2294dda..536f0a3 100644
--- a/src/glsl/glsl_symbol_table.cpp
+++ b/src/glsl/glsl_symbol_table.cpp
@@ -36,6 +36,9 @@ public:
       case ir_var_uniform:
          dest = &ibu;
          break;
+      case ir_var_shader_storage:
+         dest = &iss;
+         break;
       case ir_var_shader_in:
          dest = &ibi;
          break;
@@ -60,6 +63,8 @@ public:
       switch (mode) {
       case ir_var_uniform:
          return ibu;
+      case ir_var_shader_storage:
+         return iss;
       case ir_var_shader_in:
          return ibi;
       case ir_var_shader_out:
@@ -71,24 +76,25 @@ public:
    }
 
    symbol_table_entry(ir_variable *v)               :
-      v(v), f(0), t(0), ibu(0), ibi(0), ibo(0), a(0) {}
+      v(v), f(0), t(0), ibu(0), iss(0), ibi(0), ibo(0), a(0) {}
    symbol_table_entry(ir_function *f)               :
-      v(0), f(f), t(0), ibu(0), ibi(0), ibo(0), a(0) {}
+      v(0), f(f), t(0), ibu(0), iss(0), ibi(0), ibo(0), a(0) {}
    symbol_table_entry(const glsl_type *t)           :
-      v(0), f(0), t(t), ibu(0), ibi(0), ibo(0), a(0) {}
+      v(0), f(0), t(t), ibu(0), iss(0), ibi(0), ibo(0), a(0) {}
    symbol_table_entry(const glsl_type *t, enum ir_variable_mode mode) :
-      v(0), f(0), t(0), ibu(0), ibi(0), ibo(0), a(0)
+      v(0), f(0), t(0), ibu(0), iss(0), ibi(0), ibo(0), a(0)
    {
       assert(t->is_interface());
       add_interface(t, mode);
    }
    symbol_table_entry(const class ast_type_specifier *a):
-      v(0), f(0), t(0), ibu(0), ibi(0), ibo(0), a(a) {}
+      v(0), f(0), t(0), ibu(0), iss(0), ibi(0), ibo(0), a(a) {}
 
    ir_variable *v;
    ir_function *f;
    const glsl_type *t;
    const glsl_type *ibu;
+   const glsl_type *iss;
    const glsl_type *ibi;
    const glsl_type *ibo;
    const class ast_type_specifier *a;