Optimal CFLAGS for armv5te?

[Oleg Kravchenko]

What optimal cflags for CPU:

>asusp535 ~ # cat /proc/cpuinfo
>Processor       : XScale-PXA270 rev 7 (v5l)
>BogoMIPS        : 519.37
>Features        : swp half thumb fastmult edsp iwmmxt
>CPU implementer : 0x69
>CPU architecture: 5TE
>CPU variant     : 0x0
>CPU part        : 0x411
>CPU revision    : 7
>Cache type      : undefined 5
>Cache clean     : undefined 5
>Cache lockdown  : undefined 5
>Cache format    : Harvard
>I size          : 32768
>I assoc         : 32
>I line length   : 32
>I sets          : 32
>D size          : 32768
>D assoc         : 32
>D line length   : 32
>D sets          : 32
>
>Hardware        : Asus P535
>Revision        : 0000
>Serial          : 0000000000000000

I am try with this "-pipe -Os -march=armv5te -mtune=iwmmxt -fomit-frame-
pointer" But iwmmxt don't work :(

>asusp535 ~ # cat iwmmxt.c
>#include <mmintrin.h>                                                                                                                                                               
>                                                                                                                                                                                   
>int main(int, char**)                                                                                                                                                               
>{                                                                                                                                                                                   
>    _mm_unpackhi_pi16(_mm_setzero_si64(), _mm_setzero_si64());                                                                                                                      
>    return 0;                                                                                                                                                                       
>}                                                                                                                                                                                   
          

>asusp535 ~ # gcc test_iwmmxt.c -pipe -Os -march=armv5te -mtune=iwmmxt -fomit-
frame-pointer -o /dev/null
>{standard input}: Assembler messages:
>{standard input}:22: Error: selected processor does not support `wunpckelub 
wr6,wr4'

I am try this "-pipe -Os -march=iwmmxt -mtune=iwmmxt -fomit-frame-pointer" but 
i can't get stable software for example gcc can't build them self

I am watch cflags in uCLibc -march=armv5te -Wa,-mcpu=xscale as result:

>asusp535 ~ # gcc test_iwmmxt.c -pipe -Os -march=armv5te -Wa,-mcpu=xscale -
fomit-frame-pointer -o /dev/null
>{standard input}: Assembler messages:
>{standard input}:22: Error: selected processor does not support `wunpckelub 
wr6,wr4'

I am confused :)))

P.S. -march=native work only for x86 ;D