lib2funcs.S (__xtensa_nonlocal_goto): Use unsigned comparison for frame pointers.

2008-06-04  Junjie Gu <jgu@tensilica.com>
	* config/xtensa/lib2funcs.S (__xtensa_nonlocal_goto): Use unsigned
	comparison for frame pointers.

From-SVN: r136386

gcc/ChangeLog

+2008-06-04  Junjie Gu <jgu@tensilica.com>
+
+	* config/xtensa/lib2funcs.S (__xtensa_nonlocal_goto): Use unsigned
+	comparison for frame pointers.
+
 2008-06-04  Andy Hutchinson  <hutchinsonandy@aim.com>
 
 	PR target/27386

gcc/config/xtensa/lib2funcs.S

 /* Assembly functions for libgcc2.
-   Copyright (C) 2001, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2006, 2007, 2008 Free Software Foundation, Inc.
    Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
 
 This file is part of GCC.
@@ -105,7 +105,7 @@ __xtensa_nonlocal_goto:
 	addi	a6, a7, -16	/* advance cur */
 .Lfirstframe:
 	l32i	a7, a6, 4	/* a7 = next */
-	bge	a2, a7, .Lnextframe
+	bgeu	a2, a7, .Lnextframe
 
 	/* At this point, prev (a5) points to the save area with the saved
 	   values of a0-a3.  Copy those values into the save area at the