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From: Jan Beich <jbeich@tormail.org>
To: Jung-uk Kim <jkim@FreeBSD.org>
Subject: Re: svn commit: r243310 - head/share/mk
In-Reply-To: <201211192158.qAJLwEUR048991@svn.freebsd.org> (Jung-uk Kim's
 message of "Mon, 19 Nov 2012 21:58:14 +0000 (UTC)")
Date: Thu, 22 Nov 2012 19:04:14 -0500
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Jung-uk Kim <jkim@FreeBSD.org> writes:

> Author: jkim
> Date: Mon Nov 19 21:58:14 2012
> New Revision: 243310
> URL: http://svnweb.freebsd.org/changeset/base/243310
>
> Log:
>   Add x86 CPUs supported by clang on head.
>   
>   Reviewed by:	arch (silence)
>   X-MFC:		r242624

No penryn? My core2 supports sse41.

  $ clang -v -march=native foo.c
  ... -target-cpu penryn ...

  $ gcc47 -v -march=native foo.c
  ... -march=core2 ...

  $ clang -march=penryn foo.c
  $ gcc47 -march=penryn foo.c
  foo.c:1:0: error: bad value (penryn) for -march= switch

  $ gcc47 -march=core2 -dM -E -</dev/null | fgrep -i sse4
  Exit 1
  $ gcc47 -march=native -dM -E -</dev/null | fgrep -i sse4
  #define __SSE4_1__ 1

Not to mention bsd.cpu.mk still thinks core2 doesn't need ssse3 on i386.

  $ __MAKE_CONF= make -V CFLAGS CPUTYPE=core2 MACHINE_CPUARCH=i386
  -O2 -pipe -march=prescott

  $ /usr/bin/gcc -m32 -march=prescott -dM -E -</dev/null | fgrep -i sse
  #define __SSE__ 1
  #define __SSE2__ 1
  #define __SSE3__ 1
  
  $ /usr/bin/gcc -m32 -march=core2 -dM -E -</dev/null | fgrep -i sse
  #define __SSSE3__ 1
  #define __SSE__ 1
  #define __SSE2__ 1
  #define __SSE3__ 1