[Bug target/41989] Code optimized for AMD Geode is slower than generic

Mon Nov 9 09:02:00 GMT 2009

------- Comment #9 from rootkit85 at yahoo dot it  2009-11-09 09:01 -------
Read here pag. 15:
http://www.amd.com/files/connectivitysolutions/geode/geode_lx/33234F_LX_databook.pdf

"The instruction set supported by the core is a combination
of Intel PentiumÂ® processor, AMD AthlonÂ™ processor, and
AMD Geode LX processor specific instructions. Specifi-
cally, it supports the Pentium, Pentium Pro, AMD 3DNow!Â™
technology and MMXÂ™ instructions for the AMD Athlon
processor. It supports a subset of the specialized
AMD Geode LX processor instructions including special
SMM instructions. The CPU Core does not support the
entire Katmai New Instruction (KNI) set as implemented in
the Pentium 3. It does support the MMX instructions for the
AMD Athlon processor, which are a subset of the
Pentium 3 KNI instructions."

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41989