[Bug middle-end/40952] version 150336 broke bootstrap on ia64-hp-hpux11.23

["bonzini at gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #20 from bonzini at gnu dot org  2009-08-10 20:09 -------
Created an attachment (id=18337)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18337&action=view)
patch fixing hpux differences

This patch squashes in the following too.  It is a stupid used-uninitialized
bug that was not signaled because unsignedp is passed by reference to
promote_function_mode.

Index: gcc/stmt.c
===================================================================
--- gcc/stmt.c  (branch promote-function-mode2)
+++ gcc/stmt.c  (working copy)
@@ -1517,8 +1517,8 @@ expand_value_return (rtx val)
   rtx return_reg = DECL_RTL (decl);
   if (return_reg != val)
     {
-      int unsignedp;
       tree funtype = TREE_TYPE (current_function_decl);
       tree type = TREE_TYPE (decl);
+      int unsignedp = TYPE_UNSIGNED (type);
       enum machine_mode old_mode = DECL_MODE (decl);
       enum machine_mode mode = promote_function_mode (type, old_mode,

I'll also bootstrap the patch overnight on x86_64-pc-linux-gnu, and plan to
rename the last argument of the hook now.


-- 

bonzini at gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #18309|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40952