2011/5/17 H.J. Lu <hjl.to...@gmail.com>: > On Mon, May 16, 2011 at 7:41 PM, Zuxy Meng <zuxy.m...@gmail.com> wrote: >> 2011/5/16 H.J. Lu <hjl.to...@gmail.com>: >>> On Sun, May 15, 2011 at 10:03 PM, Zuxy Meng <zuxy.m...@gmail.com> wrote: >>>> Misdetected as Athlon by GCC, K6-2+ and K6-3+ are processors that support >>>> extended 3DNow! but don't support extended MMX or CMOV. >>>> >>>> I don't own a K6-2 or Athlon machine. Can anybody have the patch tested? >>>> >>>> 2011-05-16 Zuxy Meng <zuxy.m...@gmail.com> >>>> PR i386/48743 >>>> * config/i386/cpuid.h (bit_MMXEXT): New >>>> * config/i386/cpuid.h (bit_3DNOWP): Deleted >>> >>> Why do you remove bit_3DNOWP? <cpuid.h> is a public header file. >> >> Because this bit was added to detect Athlon and not used elsewhere. > > The first part might be true and the second part is false. Since > <cpuid.h> is a public header file, it may be used in any software > packages. > >> cpuid.h doesn't define all the feature bits available in the output of >> CPUID instruction so I thought only the actually used bits are to be >> included. > > That is false. I would appreciate a patch to define all feature bits.
OK. Resending patch. 2011-05-16 Zuxy Meng <zuxy.m...@gmail.com> PR i386/48743 * config/i386/cpuid.h (bit_MMXEXT): New * config/i386/driver-i386.c (host_detect_local_cpu): Detect Athlon by the presence of extended MMX instead of extended 3DNow! -- Zuxy Beauty is truth, While truth is beauty. PGP KeyID: E8555ED6
k6-3+.diff
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