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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/112740] [14 Regression] wrong code with vector compare on riscv64 at -O0
Date: Fri, 01 Dec 2023 11:46:33 +0000	[thread overview]
Message-ID: <bug-112740-4-MBaqGps0Xs@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-112740-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112740

--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
The only thing that's maybe suspicious is that

        machine_mode mode = GET_MODE (target);

but we test

        /* Use sign-extension for uniform boolean vectors with
           integer modes.  Effectively "vec_duplicate" for bitmasks.  */
        if (!TREE_SIDE_EFFECTS (exp)
            && VECTOR_BOOLEAN_TYPE_P (type)
            && SCALAR_INT_MODE_P (mode)

where we might want to test SCALAR_INT_MODE_P (TYPE_MODE (type)) instead.
Not sure if we ever call store_constructor with target not having the same
mode as 'exp' though ...  Or we should check that mode == TYPE_MODE (type)
since we're moving to target anyway.

  parent reply	other threads:[~2023-12-01 11:46 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-28  6:34 [Bug target/112740] New: " zsojka at seznam dot cz
2023-11-28  7:07 ` [Bug target/112740] " pinskia at gcc dot gnu.org
2023-11-30  0:23 ` pinskia at gcc dot gnu.org
2023-11-30  8:17 ` zsojka at seznam dot cz
2023-11-30  8:20 ` pinskia at gcc dot gnu.org
2023-11-30 18:47 ` pinskia at gcc dot gnu.org
2023-11-30 21:50 ` pinskia at gcc dot gnu.org
2023-11-30 21:57 ` [Bug middle-end/112740] " pinskia at gcc dot gnu.org
2023-11-30 22:02 ` pinskia at gcc dot gnu.org
2023-11-30 22:15 ` pinskia at gcc dot gnu.org
2023-11-30 22:35 ` pinskia at gcc dot gnu.org
2023-12-01 11:46 ` rguenth at gcc dot gnu.org [this message]
2024-01-10 13:42 ` rguenth at gcc dot gnu.org
2024-01-10 13:56 ` rguenth at gcc dot gnu.org
2024-01-11  8:15 ` cvs-commit at gcc dot gnu.org
2024-01-11  8:15 ` rguenth at gcc dot gnu.org

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