On SH, there are many new warnings like
note: non-delegitimized UNSPEC 46 found in variable location
which are reported by dwarf2out.c:const_ok_for_output_1.
The attached patch is a minimal fix. It's tested with
the top level "make -k check" on cross sh4-unknown-linux-gnu.
Currently, it's hard to test with the native bootstrap on
this target for the periodic long power outage here.
Applied on trunk.
Regards,
kaz
--
2011-03-18 Kaz Kojima <kkoj...@gcc.gnu.org>
* config/sh/sh.c (sh_delegitimize_address): Handle UNSPEC_SYMOFF
and UNSPEC_PCREL_SYMOFF.
diff -uprN ORIG/trunk/gcc/config/sh/sh.c LOCAL/trunk/gcc/config/sh/sh.c
--- ORIG/trunk/gcc/config/sh/sh.c 2010-12-24 09:56:26.000000000 +0900
+++ LOCAL/trunk/gcc/config/sh/sh.c 2011-03-18 08:05:03.000000000 +0900
@@ -1,6 +1,6 @@
/* Output routines for GCC for Renesas / SuperH SH.
Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+ 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Steve Chamberlain (s...@cygnus.com).
Improved by Jim Wilson (wil...@cygnus.com).
@@ -10019,8 +10019,20 @@ sh_delegitimize_address (rtx orig_x)
if (GET_CODE (y) == UNSPEC)
{
if (XINT (y, 1) == UNSPEC_GOT
- || XINT (y, 1) == UNSPEC_GOTOFF)
+ || XINT (y, 1) == UNSPEC_GOTOFF
+ || XINT (y, 1) == UNSPEC_SYMOFF)
return XVECEXP (y, 0, 0);
+ else if (XINT (y, 1) == UNSPEC_PCREL_SYMOFF)
+ {
+ if (GET_CODE (XVECEXP (y, 0, 0)) == CONST)
+ {
+ rtx symplt = XEXP (XVECEXP (y, 0, 0), 0);
+
+ if (GET_CODE (symplt) == UNSPEC
+ && XINT (symplt, 1) == UNSPEC_PLT)
+ return XVECEXP (symplt, 0, 0);
+ }
+ }
else if (TARGET_SHMEDIA
&& (XINT (y, 1) == UNSPEC_EXTRACT_S16
|| XINT (y, 1) == UNSPEC_EXTRACT_U16))
