builtins.c (expand_builtin_return_addr): Only use frame_pointer_rtx when count…

builtins.c (expand_builtin_return_addr): Only use frame_pointer_rtx when count == 0 and we are expanding...

gcc/
	* builtins.c (expand_builtin_return_addr): Only use
	frame_pointer_rtx when count == 0 and we are expanding
	__builtin_return_address.

From-SVN: r114567

gcc/ChangeLog

+2006-06-12  Mark Shinwell  <shinwell@codesourcery.com>
+
+	* builtins.c (expand_builtin_return_addr): Only use
+	frame_pointer_rtx when count == 0 and we are expanding
+	__builtin_return_address.
+
 2006-06-12  Fred Fish  <fnf@specifix.com>
 
 	* config/mips/mips.c (mips_file_start): Create special section

gcc/builtins.c

@@ -509,12 +509,16 @@ expand_builtin_return_addr (enum built_in_function fndecl_code, int count)
 #else
   rtx tem;
 
-  /* For a zero count, we don't care what frame address we return, so frame
-     pointer elimination is OK, and using the soft frame pointer is OK.
-     For a nonzero count, we require a stable offset from the current frame
-     pointer to the previous one, so we must use the hard frame pointer, and
+  /* For a zero count with __builtin_return_address, we don't care what
+     frame address we return, because target-specific definitions will
+     override us.  Therefore frame pointer elimination is OK, and using
+     the soft frame pointer is OK.
+
+     For a non-zero count, or a zero count with __builtin_frame_address,
+     we require a stable offset from the current frame pointer to the
+     previous one, so we must use the hard frame pointer, and
      we must disable frame pointer elimination.  */
-  if (count == 0)
+  if (count == 0 && fndecl_code == BUILT_IN_RETURN_ADDRESS)
     tem = frame_pointer_rtx;
   else
     {