From: David Edelsohn <dje.gcc@gmail.com>
To: Richard Biener <richard.guenther@gmail.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>,
"William J. Schmidt" <wschmidt@linux.vnet.ibm.com>,
GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] lround for PowerPC
Date: Sun, 22 Nov 2015 14:39:00 -0000 [thread overview]
Message-ID: <CAGWvnymXW4=sOGnDr-bnBstjLs5Qc9VoUeMCr4Owgw8j_LQPQQ@mail.gmail.com> (raw)
In-Reply-To: <F75D0D75-95E8-4A66-8A17-1976282B462E@gmail.com>
On Sun, Nov 22, 2015 at 2:34 AM, Richard Biener
<richard.guenther@gmail.com> wrote:
> On November 22, 2015 2:52:53 AM GMT+01:00, David Edelsohn <dje.gcc@gmail.com> wrote:
>>PowerPC was missing a definition of the lroundMN pattern, which can be
>>implemented with VSX instructions available in Power7. Below is a
>>first draft.
> Why unsafe-math?
It's a first draft. I want to re-confirm that the combined
instructions set all of the correct flags.
The patterns should work in SF and DF modes, but currently trigger a
reload failure in SFmode.
Thanks, David
next prev parent reply other threads:[~2015-11-22 14:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-22 3:21 David Edelsohn
2015-11-22 8:51 ` Richard Biener
2015-11-22 14:39 ` David Edelsohn [this message]
2015-11-22 20:58 ` David Edelsohn
2015-11-23 22:15 ` Michael Meissner
2015-11-24 0:06 ` David Edelsohn
2015-11-24 18:51 ` Michael Meissner
2015-11-24 19:00 ` Michael Meissner
2015-11-24 19:29 ` David Edelsohn
2015-11-24 23:01 ` Michael Meissner
2015-11-24 0:16 ` Michael Meissner
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