From: "H.J. Lu" <hjl.tools@gmail.com>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: libc-alpha@sourceware.org
Subject: Re: [PATCH 02/12] powerpc: Add missing arch flags on rounding ifunc variants
Date: Mon, 1 Apr 2024 06:59:39 -0700 [thread overview]
Message-ID: <CAMe9rOrX=eL5t+cFoJqMTMb_w6rAsPpyFd_kd9GHg4O_v9hzbg@mail.gmail.com> (raw)
In-Reply-To: <20231228172026.2013007-3-adhemerval.zanella@linaro.org>
On Thu, Dec 28, 2023 at 9:21 AM Adhemerval Zanella
<adhemerval.zanella@linaro.org> wrote:
>
> The ifunc variants now uses the powerpc implementation which in turn
> uses the compiler builtin. Without the proper -mcpu switch the builtin
> does not generate the expected optimization.
>
> Checked on powerpc-linux-gnu.
> ---
> sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
> index 64317506c6..2f5c0eded6 100644
> --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
> +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
> @@ -34,6 +34,12 @@ CFLAGS-s_modff-power5+.c = -mcpu=power5+
> CFLAGS-s_logbl-power7.c = -mcpu=power7
> CFLAGS-s_logb-power7.c = -mcpu=power7
> CFLAGS-s_logbf-power7.c = -mcpu=power7
> +CFLAGS-s_round-power5+.c += -mcpu=power5+
> +CFLAGS-s_roundf-power5+.c += -mcpu=power5+
> +CFLAGS-s_floor-power5+.c += -mcpu=power5+
> +CFLAGS-s_floorf-power5+.c += -mcpu=power5+
> +CFLAGS-s_trunc-power5+.c += -mcpu=power5+
> +CFLAGS-s_truncf-power5+.c += -mcpu=power5+
>
> # These files quiet sNaNs in a way that is optimized away without
> # -fsignaling-nans.
> --
> 2.34.1
>
LGTM.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Thanks.
--
H.J.
next prev parent reply other threads:[~2024-04-01 14:00 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-28 17:20 [PATCH 00/12] Improve rounding to interger function for C23 Adhemerval Zanella
2023-12-28 17:20 ` [PATCH 01/12] math: Reformat Makefile Adhemerval Zanella
2024-04-01 13:57 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 02/12] powerpc: Add missing arch flags on rounding ifunc variants Adhemerval Zanella
2024-04-01 13:59 ` H.J. Lu [this message]
2024-04-01 16:50 ` Peter Bergner
2023-12-28 17:20 ` [PATCH 03/12] math: Add test to check if ceil raise inexact floating-point exception Adhemerval Zanella
2024-04-01 14:01 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 04/12] math: Add test to check if floor " Adhemerval Zanella
2024-04-01 14:02 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 05/12] math: Add test to check if trunc " Adhemerval Zanella
2024-04-01 14:03 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 06/12] math: Add test to check if round " Adhemerval Zanella
2024-04-01 14:02 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 07/12] x86: Do not raise inexact exception on ceill Adhemerval Zanella
2024-04-01 14:12 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 08/12] x86: Do not raise inexact exception on floorl Adhemerval Zanella
2024-04-01 14:13 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 09/12] x86: Do not raise inexact exception on truncl Adhemerval Zanella
2024-04-01 14:14 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 10/12] x86: Do not raise inexact exception on floor/floorf Adhemerval Zanella
2024-04-01 14:15 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 11/12] i386: Do not raise inexact exception on ceil/ceilf Adhemerval Zanella
2024-04-01 14:16 ` H.J. Lu
2023-12-28 17:20 ` [PATCH 12/12] i386: Do not raise inexact exception on trunc/truncf Adhemerval Zanella
2024-04-01 14:17 ` H.J. Lu
2024-02-16 17:47 ` [PATCH 00/12] Improve rounding to interger function for C23 Adhemerval Zanella Netto
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