On Donnerstag 12 Februar 2009, Zhang Jun wrote: > Hi list, > > my laptop's cpu is AMD Turion64x2, I've installed both 32bits Debian > testing and Gentoo on it, > from Debian there is no SSE3 in /proc/cpuinfo,
I am sure there is. But it is called 'pni' - its original name. > and I used CFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer -pipe" on > gentoo, and I can not see SSE3 in cpuinfo also, > > I emerged x86info, and SSE3 is in its output: > > #x86info > x86info v1.21. Dave Jones 2001-2007 > Feedback to <da...@redhat.com>. > > Found 2 CPUs > -------------------------------------------------------------------------- > CPU #1 > Family: 15 Model: 72 Stepping: 2 > CPU Model : Turion 64 X2 (BH-F2) > Processor name string: AMD Turion(tm) 64 X2 Mobile Technology TL-52 > > Feature flags: > fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat > pse36 clflsh mmx fxsr sse sse2 ht sse3 cmpxchg16b > Extended feature flags: > fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat > pse36 nx mmxext mmx fxsr ffxsr rdtscp lm 3dnowext 3dnow lahf/sahf > CmpLegacy svm ExtApicSpace LockMovCr0 > > SVM: revision 1, 64 ASIDs > Address Size: 48 bits virtual, 40 bits physical > The physical package has 2 of 2 possible cores implemented. > ... > ... > > > my question is: I can not see SSE3 in cpuinfo because I did not use > "-msse3" in CFLAGS ? no. Because it is called 'pni'. How about this cflags: march=k8-sse3 -O2 -msse3 (in case march gets filtered) -pipe ? on amd64 fomit-frame-pointer isn't needed anymore.
