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Re: [PATCH] [x86_32] Don't use SSE4_2 instructions on Intel Silvermont Micro Architecture.
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Liubov Dmitrieva <liubov dot dmitrieva at gmail dot com>
- Cc: "Carlos O'Donell" <carlos at redhat dot com>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Mon, 1 Jul 2013 12:47:45 -0700
- Subject: Re: [PATCH] [x86_32] Don't use SSE4_2 instructions on Intel Silvermont Micro Architecture.
- References: <CAHjhQ93YUtMz14Aj7JfhJ7Tq++eC+23cA6yubh1KPRpKTvvkaw at mail dot gmail dot com> <51D0967A dot 7050102 at redhat dot com> <CAHjhQ92mTi8OmY7RBC3=sCaX=-xbgGH82pCBz4fCQkBLJcNqOA at mail dot gmail dot com> <CAMe9rOr8o7OnB0T0tG50J7oXmJJF_XOiUDLK6Gsc1tMu-NOFrQ at mail dot gmail dot com> <CAHjhQ90Hrj78WYJ_sQ2Eu7mzf63Wbnuihcv88KBMdxJo5q1Yxg at mail dot gmail dot com> <CAMe9rOojGtDZcb6Phk3a1sp+B3XhQwRJo9ZjovC==1OG2_8k=g at mail dot gmail dot com>
On Mon, Jul 1, 2013 at 12:31 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Mon, Jul 1, 2013 at 12:27 PM, Liubov Dmitrieva
> <liubov.dmitrieva@gmail.com> wrote:
>> It is disabled for both. Where do you see it doesn't?
>>
>
> From:
>
> http://sourceware.org/git/?p=glibc.git;a=blob_plain;f=sysdeps/i386/i686/multiarch/strcasecmp.S;hb=HEAD
>
> I see __strcasecmp_sse4_2 is used when SHARED is define.
>
I see what is going on. This commit:
http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=6abf346582ba678f4850a88b4a5950593841df1d
missed the "#if 0" removal for libc.a in strncase.S and
strcasecmp.S. "#if 0" should be removed when SHARED
is defined.
--
H.J.