[已解决]CFLAGS变量里的 -march值：k8, opteron, athlon64, athlon-fx 是一个意思吗？

bijianing

如题，
在gcc的手册里这样写的：

1. 
   
2. -mtune=cpu-type
   
3. Tune to cpu-type everything applicable about the generated code, except for the ABI and the set of available instructions. The choices for cpu-type are:
   
4. ...
   
5. k6
   
6. AMD K6 CPU with MMX instruction set support.
   
7. 
   
8. k6-2, k6-3
   
9. Improved versions of AMD K6 CPU with MMX and 3dNOW! instruction set support.
   
10. 
    
11. athlon, athlon-tbird
    
12. AMD Athlon CPU with MMX, 3dNOW!, enhanced 3dNOW! and SSE prefetch instructions support.
    
13. 
    
14. athlon-4, athlon-xp, athlon-mp
    
15. Improved AMD Athlon CPU with MMX, 3dNOW!, enhanced 3dNOW! and full SSE instruction set support.
    
16. 
    
17. k8, opteron, athlon64, athlon-fx
    
18. AMD K8 core based CPUs with x86-64 instruction set support. (This supersets MMX, SSE, SSE2, 3dNOW!, enhanced 3dNOW! and 64-bit instruction set extensions.)
    
19. 
    
20. ...
    

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谢谢先，，，

coderoar

他不是说了吗，只不过起了N个名而已，不过这马甲也太多了

poet

Post by bijianing;1948652
如题，
在gcc的手册里这样写的：
谢谢先，，，

从 gcc 4.2.1 以上版本开始都不用考虑这些， -march=native 就足够了，自动检测。

bijianing

现在都忽略啦? 我还是设置一下把.谢谢啦…
对了,我想问一下,怎么在标题里加上[以解决]

coderoar

“编辑” ---》“高级模式”

bijianing

谢谢，，，，，，，，