From: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
To: Kyrill Tkachov <kyrylo.tkachov@foss.arm.com>,
GCC Patches <gcc-patches@gcc.gnu.org>,
Richard Earnshaw <Richard.Earnshaw@arm.com>
Cc: nd <nd@arm.com>
Subject: Re: [PATCH][ARM] Cleanup multiply patterns
Date: Wed, 18 Sep 2019 18:19:00 -0000 [thread overview]
Message-ID: <HE1PR0801MB212134778B514469CA16D8C8838E0@HE1PR0801MB2121.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <efa1d089-fc3e-ed95-214a-d5157b55b767@foss.arm.com>
Hi Kyrill,
>> + (mult:SI (match_operand:SI 3 "s_register_operand" "r")
>> + (match_operand:SI 2 "s_register_operand" "r"))))]
>
> Looks like we'll want to mark operand 2 here with '%' as well?
That doesn't make any difference since both operands are identical.
It only helps if the operands are not the same, eg. rather than
"r,0" "0,r" you can write "%r" "0".
Wilco
next prev parent reply other threads:[~2019-09-18 18:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-03 15:38 Wilco Dijkstra
2019-09-09 17:07 ` Wilco Dijkstra
2019-09-18 16:24 ` Kyrill Tkachov
2019-09-18 18:19 ` Wilco Dijkstra [this message]
2019-09-19 8:31 ` Kyrill Tkachov
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