From: Richard Guenther <rguenther@suse.de>
Date: Fri, 26 Aug 2011 14:02:28 +0000 (+0000)
Subject: varasm.c (decode_addr_const): Handle MEM_REF[&X, OFF].
X-Git-Tag: releases/gcc-4.7.0~4252
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=315036fe5403bf7fe49b4f569b645369c7989aac;p=thirdparty%2Fgcc.git

varasm.c (decode_addr_const): Handle MEM_REF[&X, OFF].

2011-08-26  Richard Guenther  <rguenther@suse.de>

	* varasm.c (decode_addr_const): Handle MEM_REF[&X, OFF].

From-SVN: r178107
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9412f498569f..28c9d2f51074 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2011-08-26  Richard Guenther  <rguenther@suse.de>
+
+	* varasm.c (decode_addr_const): Handle MEM_REF[&X, OFF].
+
 2011-08-26  Zdenek Dvorak  <ook@ucw.cz>
 	    Tom de Vries  <tom@codesourcery.com>
 
diff --git a/gcc/varasm.c b/gcc/varasm.c
index a612888d6f3c..e83bebbb04e6 100644
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -2592,6 +2592,12 @@ decode_addr_const (tree exp, struct addr_const *value)
 		     * tree_low_cst (TREE_OPERAND (target, 1), 0));
 	  target = TREE_OPERAND (target, 0);
 	}
+      else if (TREE_CODE (target) == MEM_REF
+	       && TREE_CODE (TREE_OPERAND (target, 0)) == ADDR_EXPR)
+	{
+	  offset += mem_ref_offset (target).low;
+	  target = TREE_OPERAND (TREE_OPERAND (target, 0), 0);
+	}
       else if (TREE_CODE (target) == INDIRECT_REF
 	       && TREE_CODE (TREE_OPERAND (target, 0)) == NOP_EXPR
 	       && TREE_CODE (TREE_OPERAND (TREE_OPERAND (target, 0), 0))