------- Comment #6 from sascha-web-gcc dot gnu dot org at silbe dot org
2009-05-10 10:07 -------
> /* X86_TUNE_USE_FFREEP */
> m_AMD_MULTIPLE,
Without having dug into the source, I'd guess that this is the exact location
of the bug.
> #define m_AMD_MULTIPLE (m_K8 | m_ATHLON | m_AMDFAM10)
If AMDFAM10 is the AMD Geode series of processors and all of them don't support
ffreep (needs checking), then the above line should read
/* X86_TUNE_USE_FFREEP */
(m_K8 | m_ATHLON),
instead.
The bug indeed seems only to happen for -march=native (haven't tested anything
besides native yet), BTW. I.e. if you don't specify an architecture at all,
ffreep won't get issued.
--
sascha-web-gcc dot gnu dot org at silbe dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC build triplet|vortex86-pc-linux |
GCC target triplet|vortex86-pc-linux |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37179
