From: Paul E Murphy <murphyp@linux.ibm.com>
To: Amrita H S <amritahs@linux.vnet.ibm.com>, libc-alpha@sourceware.org
Subject: Re: [PATCH V2] powerpc: Optimized strncmp for power10
Date: Thu, 25 Apr 2024 11:49:46 -0500 [thread overview]
Message-ID: <0e78bb99-c506-412d-898b-c2b9c10c7409@linux.ibm.com> (raw)
In-Reply-To: <20231218152847.1764760-1-amritahs@linux.vnet.ibm.com>
On 12/18/23 9:28 AM, Amrita H S wrote:
> +#define TAIL_FIRST_16B(vreg1,vreg2) \
> + vctzlsbb r6,v7; \
> + cmpld cr7,r5,r6; \
> + ble cr7,L(ret0); \
> + vextubrx r5,r6,vreg1; \
> + vextubrx r4,r6,vreg2; \
> + subf r3,r4,r5; \
> + blr;
> +
> +#define TAIL_SECOND_16B(vreg1,vreg2) \
> + vctzlsbb r6,v7; \
> + addi r0,r6,16; \
> + cmplw cr7,r5,r0; \
Should this be cmpld?
> + ble cr7,L(ret0); \
> + vextubrx r5,r6,vreg1; \
> + vextubrx r4,r6,vreg2; \
> + subf r3,r4,r5; \
> + blr;
Otherwise, LGTM.
next prev parent reply other threads:[~2024-04-25 16:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-18 15:28 [PATCH V2] powerpc: Optimized strncmp for power10 Amrita H S
2024-04-25 16:49 ` Paul E Murphy [this message]
2024-04-29 10:00 ` Amrita H S
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/libc/involved.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0e78bb99-c506-412d-898b-c2b9c10c7409@linux.ibm.com \
--to=murphyp@linux.ibm.com \
--cc=amritahs@linux.vnet.ibm.com \
--cc=libc-alpha@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).