From: Ian Romanick <ian.d.romanick@intel.com>
Date: Wed, 21 Apr 2010 18:54:02 +0000 (-0700)
Subject: Implement structures and arrays in ir_dereference::is_lvalue
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ae000fcb2e47a88d507a616709ae42d4aefae7a0;p=mesa.git

Implement structures and arrays in ir_dereference::is_lvalue
---

diff --git a/ir.cpp b/ir.cpp
index 7ada145d53b..6778997ac83 100644
--- a/ir.cpp
+++ b/ir.cpp
@@ -260,22 +260,21 @@ ir_dereference::is_lvalue()
    if (var == NULL)
       return false;
 
+   ir_variable *const as_var = var->as_variable();
    if (mode == ir_reference_variable) {
-      ir_variable *const as_var = var->as_variable();
       if (as_var == NULL)
 	 return false;
 
       if (as_var->type->is_array() && !as_var->array_lvalue)
 	 return false;
+   }
 
+   if (as_var != NULL)
       return !as_var->read_only;
-   } else if (mode == ir_reference_array) {
-      /* FINISHME: Walk up the dereference chain and figure out if
-       * FINISHME: the variable is read-only.
-       */
-   }
 
-   return true;
+   /* Walk up the dereference chain and figure out if the variable is read-only.
+    */
+   return this->var->as_rvalue()->is_lvalue();
 }
 
 ir_swizzle::ir_swizzle(ir_rvalue *val, unsigned x, unsigned y, unsigned z,