Handle constant expressions using derefs of const values.

Fixes CorrectParse1.frag and makes for a ton of folding in CorrectParse2.frag.
2010-04-06 10:30:54 -07:00
parent 3fff009af1
commit 326c676236
4 changed files with 19 additions and 3 deletions
@@ -395,8 +395,15 @@ ir_constant_visitor::visit(ir_swizzle *ir)
 void
 ir_constant_visitor::visit(ir_dereference *ir)
 {
-   (void) ir;
   value = NULL;
+
+   if (ir->mode == ir_dereference::ir_reference_variable) {
+      ir_variable *var = ir->var->as_variable();
+      if (var && var->constant_value) {
+	 value = new ir_constant(ir->type, &var->constant_value->value);
+      }
+   }
+   /* FINISHME: Other dereference modes. */
 }