From: Segher Boessenkool <segher@kernel.crashing.org>
To: Michael Meissner <meissner@linux.vnet.ibm.com>,
gcc-patches@gcc.gnu.org, dje.gcc@gmail.com
Subject: Re: [PATCH], Add power9 support to GCC, patch #3 (scalar count trailing zeros)
Date: Mon, 09 Nov 2015 19:33:00 -0000 [thread overview]
Message-ID: <20151109193311.GB29439@gate.crashing.org> (raw)
In-Reply-To: <20151109171748.GA32705@ibm-tiger.the-meissners.org>
On Mon, Nov 09, 2015 at 12:17:49PM -0500, Michael Meissner wrote:
> > > + "TARGET_CTZ"
> > > + "cnttz<wd> %0,%1"
> > > + [(set_attr "type" "cntlz")])
> >
> > We should probably rename this attr value now. "cntz" maybe? Could be
> > later of course.
>
> I don't see a need to add another type attribute for count trailing zeros
> unless count leading zeros has a different timing than count trailing zeros.
I didn't suggest adding a "cnttz"; I suggested renaming "cntlz". Maybe
"ctz" is better, that's what the target flag is as well.
Cheers,
Segher
next prev parent reply other threads:[~2015-11-09 19:33 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-03 20:29 [PATCH], Add power9 support to GCC, patch #1 Michael Meissner
2015-11-04 21:16 ` Segher Boessenkool
2015-11-04 21:27 ` Michael Meissner
2015-11-09 0:33 ` [PATCH], Add power9 support to GCC, patch #1 (revised) Michael Meissner
2015-11-09 16:12 ` David Edelsohn
2015-11-10 18:39 ` [PATCH], Add power9 support to GCC, patch #8 (add integer multiply/add) Michael Meissner
2015-11-12 20:39 ` David Edelsohn
2015-11-09 0:36 ` [PATCH], Add power9 support to GCC, patch #2 (add modulus instructions) Michael Meissner
2015-11-09 15:48 ` Segher Boessenkool
2015-11-09 18:07 ` Michael Meissner
2015-11-09 16:14 ` David Edelsohn
2015-11-10 0:17 ` [PATCH], Add power9 support to GCC, patches #2-5 committed Michael Meissner
2015-11-10 0:20 ` Michael Meissner
2015-11-09 0:38 ` [PATCH], Add power9 support to GCC, patch #3 (scalar count trailing zeros) Michael Meissner
2015-11-09 15:59 ` Segher Boessenkool
2015-11-09 17:18 ` Michael Meissner
2015-11-09 19:33 ` Segher Boessenkool [this message]
2015-11-09 18:02 ` David Edelsohn
2015-11-09 0:39 ` [PATCH], Add power9 support to GCC, patch #4 Michael Meissner
2015-11-09 16:29 ` Segher Boessenkool
2015-11-09 17:27 ` Michael Meissner
2015-11-09 19:48 ` Segher Boessenkool
2015-11-09 18:03 ` David Edelsohn
2015-11-09 0:42 ` [PATCH], Add power9 support to GCC, patch #5 (ISA 3.0 fusion) Michael Meissner
2015-11-09 17:16 ` Segher Boessenkool
2015-11-09 17:34 ` Michael Meissner
2015-11-09 19:57 ` Segher Boessenkool
2015-11-09 21:11 ` David Edelsohn
2015-11-09 22:17 ` Michael Meissner
2015-11-09 22:33 ` David Edelsohn
2015-11-09 18:57 ` David Edelsohn
2015-11-14 22:58 ` Segher Boessenkool
2015-11-09 0:45 ` [PATCH], Add power9 support to GCC, patch #6 (IEEE 128-bit hardware support) Michael Meissner
2015-11-09 19:29 ` Segher Boessenkool
2015-11-10 0:41 ` Joseph Myers
2015-11-10 18:41 ` Michael Meissner
2015-11-12 20:47 ` David Edelsohn
2015-11-13 22:13 ` [PATCH applied], Power9 patches #6-8 (IEEE 128-bit h/w, 128-bit direct move, integer mult/add) Michael Meissner
2015-11-09 0:49 ` [PATCH], Add power9 support to GCC, patch #7 (direct move enhancements) Michael Meissner
2015-11-09 20:00 ` Segher Boessenkool
2015-11-09 21:06 ` Michael Meissner
2015-11-12 20:43 ` David Edelsohn
2015-11-10 20:56 ` [PATCH, applied], Add power9 support to GCC, patch #9 (config.gcc) Michael Meissner
2015-11-10 21:56 ` [PATCH], Add power9 support to GCC, patch #10 (SFmode/DFmode d-form addressing) Michael Meissner
2015-11-11 0:19 ` Segher Boessenkool
2015-11-11 0:26 ` Michael Meissner
2015-11-24 18:08 ` David Edelsohn
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