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From: "ian at airs dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug go/98504] [11 Regression] bootstrap broken in libgo on ia64-linux-gnu
Date: Mon, 04 Jan 2021 21:16:19 +0000	[thread overview]
Message-ID: <bug-98504-4-Rls1DjvR9W@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98504-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98504

--- Comment #3 from Ian Lance Taylor <ian at airs dot com> ---
Maybe I'm missing something obvious, but I don't see how this is possible.  The
code in the Go frontend is

  if (suffix.compare(2, 5, "thunk") == 0
      && Gogo::is_digits(suffix.substr(7)))
    return pos;

The crash is apparently occurring on the call to suffix.substr(7).  Given that
suffix.compare already worked, there should be no way that that code could
crash.

So to me this looks like a miscompilation of the Go frontend code, rather than
a bug in the Go frontend.

  parent reply	other threads:[~2021-01-04 21:16 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-03 12:08 [Bug go/98504] New: " doko at debian dot org
2021-01-03 12:10 ` [Bug go/98504] " doko at debian dot org
2021-01-03 12:17 ` schwab@linux-m68k.org
2021-01-04 21:16 ` ian at airs dot com [this message]
2021-01-05 11:17 ` rguenth at gcc dot gnu.org
2021-02-01 15:55 ` [Bug lto/98504] " doko at debian dot org
2021-04-09  8:02 ` rguenth at gcc dot gnu.org
2021-04-09  8:34 ` glaubitz at physik dot fu-berlin.de
2021-04-27 11:40 ` [Bug lto/98504] [11/12 " jakub at gcc dot gnu.org
2021-07-28  7:05 ` rguenth at gcc dot gnu.org
2022-01-17 15:05 ` rguenth at gcc dot gnu.org
2022-01-17 15:07 ` glaubitz at physik dot fu-berlin.de
2022-01-18 19:06 ` glaubitz at physik dot fu-berlin.de
2022-01-18 21:25 ` ian at airs dot com
2022-01-18 22:02 ` glaubitz at physik dot fu-berlin.de
2022-01-19  7:33 ` rguenth at gcc dot gnu.org
2022-04-21  7:48 ` rguenth at gcc dot gnu.org
2023-05-29 10:03 ` [Bug lto/98504] [11/12/13/14 " jakub at gcc dot gnu.org

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