From: Ian Romanick <ian.d.romanick@intel.com>
Date: Wed, 7 Apr 2010 23:53:54 +0000 (-0700)
Subject: Add tracking for extension based warnings
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c178c74c27ab292651dcf7da02a7d035366cae04;p=mesa.git

Add tracking for extension based warnings

Using '#extension foo: warn' instructs the compiler to generate a
warning when some feature of the extension 'foo' is used.  This patch
adds some infrastructure needed to support that for variables.

Similar changes will be needed for types and built-in functions.
---

diff --git a/ir.h b/ir.h
index fee23b25829..13d07155a42 100644
--- a/ir.h
+++ b/ir.h
@@ -156,6 +156,11 @@ public:
     */
    unsigned array_lvalue:1;
 
+   /**
+    * Emit a warning if this variable is accessed.
+    */
+   const char *warn_extension;
+
    /**
     * Value assigned in the initializer of a variable declared "const"
     */