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