Begin refactoring ir_dereference

Create separate subclasses of ir_dereference for variable, array, and
record dereferences.  As a side effect, array and record dereferences
no longer point to ir_variable objects directly.  Instead they each
point to an ir_dereference_variable object.

This is the first of several steps in the refactoring process.  The
intention is that ir_dereference will eventually become an abstract
base class.

1 files changed, 1 insertions, 1 deletions

diff --git a/ast_function.cpp b/ast_function.cpp
index 7931633c5a1..300108cb73e 100644
--- a/ast_function.cpp
+++ b/ast_function.cpp
@@ -200,7 +200,7 @@ dereference_component(ir_rvalue *src, unsigned component)
       const int c = component / src->type->column_type()->vector_elements;
       const int r = component % src->type->column_type()->vector_elements;
       ir_constant *const col_index = new ir_constant(glsl_type::int_type, &c);
-      ir_dereference *const col = new ir_dereference(src, col_index);
+      ir_dereference *const col = new ir_dereference_array(src, col_index);
 
       col->type = src->type->column_type();