rs6000-c.c (rs6000_cpu_cpp_builtins): Add builtin_define __CMODEL_MEDIUM__ and __CMODEL_LARGE__.

	* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Add
	builtin_define __CMODEL_MEDIUM__ and __CMODEL_LARGE__.

From-SVN: r169077

gcc/ChangeLog

+2011-01-21  Alan Modra  <amodra@gmail.com>
+
+	* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Add
+	builtin_define __CMODEL_MEDIUM__ and __CMODEL_LARGE__.
+
 2011-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 
 	* config/arm/arm.md (define_attr type): Rename f_load

gcc/config/rs6000/rs6000-c.c

 /* Subroutines for the C front end on the POWER and PowerPC architectures.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
    Contributed by Zack Weinberg <zack@codesourcery.com>
@@ -385,6 +385,20 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfile)
       builtin_define ("__LONGDOUBLE128");
     }
 
+  switch (TARGET_CMODEL)
+    {
+      /* Deliberately omit __CMODEL_SMALL__ since that was the default
+	 before --mcmodel support was added.  */
+    case CMODEL_MEDIUM:
+      builtin_define ("__CMODEL_MEDIUM__");
+      break;
+    case CMODEL_LARGE:
+      builtin_define ("__CMODEL_LARGE__");
+      break;
+    default:
+      break;
+    }
+
   switch (rs6000_current_abi)
     {
     case ABI_V4: