From: Segher Boessenkool <segher@kernel.crashing.org>
To: HAO CHEN GUI <guihaoc@linux.ibm.com>
Cc: gcc-patches <gcc-patches@gcc.gnu.org>, David <dje.gcc@gmail.com>,
"Kewen.Lin" <linkw@linux.ibm.com>,
Peter Bergner <bergner@linux.ibm.com>
Subject: Re: [PATCH v4, rs6000] Implemented f[min/max]_optab by xs[min/max]dp [PR103605]
Date: Wed, 8 Jun 2022 08:24:35 -0500 [thread overview]
Message-ID: <20220608132435.GN25951@gate.crashing.org> (raw)
In-Reply-To: <cf9a8958-c46d-2c09-ce99-fc3136366863@linux.ibm.com>
On Wed, Jun 08, 2022 at 11:28:11AM +0800, HAO CHEN GUI wrote:
> This patch implements optab f[min/max]_optab by xs[min/max]dp on rs6000.
> Tests show that outputs of xs[min/max]dp are consistent with the standard
> of C99 fmin/max.
But it regresses the code quality generated with -ffast-math (because
the new unspecs arent't optimised like standard rtl is). This can be
follow-up work of course -- and the best direction is to make fmin/fmax
generic, even! :-)
Segher
next prev parent reply other threads:[~2022-06-08 13:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-08 3:28 HAO CHEN GUI
2022-06-08 7:44 ` Kewen.Lin
2022-06-08 13:24 ` Segher Boessenkool [this message]
2022-06-09 1:24 ` HAO CHEN GUI
2022-06-09 15:07 ` Segher Boessenkool
2022-06-10 0:47 ` HAO CHEN GUI
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