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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/100604] GCC generates invalid LO_SYM for unaligned global
Date: Fri, 14 May 2021 19:34:17 +0000	[thread overview]
Message-ID: <bug-100604-4-4a6SBcBCHK@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-100604-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100604

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|riscv,mips                  |riscv-*-*,mips64r6-*-*
           Keywords|                            |wrong-code

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this comes from emit-rtl.c:
      /* If MEMREF is a LO_SUM and the offset is within the alignment of the
         object, we can merge it into the LO_SUM.  */
      if (GET_MODE (memref) != BLKmode
          && GET_CODE (addr) == LO_SUM
          && known_in_range_p (offset,
                               0, (GET_MODE_ALIGNMENT (GET_MODE (memref))
                                   / BITS_PER_UNIT)))
        addr = gen_rtx_LO_SUM (address_mode, XEXP (addr, 0),
                               plus_constant (address_mode,
                                              XEXP (addr, 1), offset));

  reply	other threads:[~2021-05-14 19:34 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-14 15:15 [Bug middle-end/100604] New: " dragan.mladjenovic at syrmia dot com
2021-05-14 19:34 ` pinskia at gcc dot gnu.org [this message]
2021-05-14 21:28 ` [Bug middle-end/100604] " dragan.mladjenovic at syrmia dot com
2021-05-17 12:24 ` rguenth at gcc dot gnu.org
2021-05-22 16:21 ` dragan.mladjenovic at syrmia dot com
2023-11-29 18:45 ` pinskia at gcc dot gnu.org
2023-11-29 18:45 ` pinskia at gcc dot gnu.org
2024-04-17 19:31 ` pinskia at gcc dot gnu.org
2024-04-17 19:37 ` pinskia at gcc dot gnu.org

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