From: Richard Henderson <richard.henderson@linaro.org>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>,
libc-alpha@sourceware.org
Cc: Richard Henderson <rth@twiddle.net>,
Joseph Myers <joseph@codesourcery.com>,
caiyinyu <caiyinyu@loongson.cn>
Subject: Re: [PATCH 09/17] string: Improve generic strcmp
Date: Sat, 3 Sep 2022 09:54:57 +0100 [thread overview]
Message-ID: <095dbb7a-27bc-5866-98cd-cfedb84dbfdb@linaro.org> (raw)
In-Reply-To: <20220902203940.2385967-10-adhemerval.zanella@linaro.org>
On 9/2/22 21:39, Adhemerval Zanella via Libc-alpha wrote:
> +static inline int
> +final_cmp (const op_t w1, const op_t w2)
> +{
> + unsigned char c1, c2;
> + for (size_t i = 0; i < sizeof (op_t); i++)
> + {
> + c1 = extractbyte (w1, i);
> + c2 = extractbyte (w2, i);
> + if (c1 == '\0' || c1 != c2)
> + return c1 - c2;
> + }
> + return c1 - c2;
> +}
The loop should be replaced by
i = index_first_zero_ne(w1, w2);
r~
next prev parent reply other threads:[~2022-09-03 8:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 20:39 [PATCH 00/17] Improve generic string routines Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 01/17] Parameterize op_t from memcopy.h Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 02/17] Parameterize OP_T_THRES " Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 03/17] Add string-maskoff.h generic header Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 04/17] Add string vectorized find and detection functions Adhemerval Zanella
2022-09-03 3:20 ` Noah Goldstein
2022-09-19 14:00 ` Adhemerval Zanella Netto
2022-09-02 20:39 ` [PATCH 05/17] string: Improve generic strlen Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 06/17] string: Improve generic strnlen Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 07/17] string: Improve generic strchr Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 08/17] string: Improve generic strchrnul Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 09/17] string: Improve generic strcmp Adhemerval Zanella
2022-09-03 3:31 ` Noah Goldstein
2022-09-19 14:04 ` Adhemerval Zanella Netto
2022-09-03 8:54 ` Richard Henderson [this message]
2022-09-02 20:39 ` [PATCH 10/17] string: Improve generic memchr Adhemerval Zanella
2022-09-03 3:47 ` Noah Goldstein
2022-09-19 19:17 ` Adhemerval Zanella Netto
2022-09-19 21:59 ` Noah Goldstein
2022-09-22 17:51 ` Adhemerval Zanella Netto
2022-09-02 20:39 ` [PATCH 11/17] string: Improve generic memrchr Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 12/17] hppa: Add memcopy.h Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 13/17] hppa: Add string-fzb.h and string-fzi.h Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 14/17] alpha: " Adhemerval Zanella
2022-09-02 20:39 ` [PATCH 15/17] arm: Add string-fza.h Adhemerval Zanella
2022-09-05 15:40 ` Richard Earnshaw
2022-09-05 15:50 ` Richard Earnshaw
2022-09-02 20:39 ` [PATCH 16/17] powerpc: " Adhemerval Zanella
2022-09-06 14:48 ` Paul E Murphy
2022-09-19 19:55 ` Adhemerval Zanella Netto
2022-09-02 20:39 ` [PATCH 17/17] sh: Add string-fzb.h Adhemerval Zanella
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