gcc optimisation problem

[vikramsp]

no i am not using any -O options. using only individual options
but they are not woking. I also tried -finline-functions but it is
not working too.
Other side I used -fpeephole2 and -da to dump all the passes
of the compiler but peephole2 pass dump is not there. same is for 
-fpeephole. please help me.


Jonathan Wakely-4 wrote:
> 
> On 6 April 2011 13:13, vikramsp wrote:
>>
>> hello there... i am trying my hands on gcc optimisations options.
>> i tried e.g. -finline-functions, -funroll-loops and the likes but none
>> worked for me
> 
> Are you also using -O ?
> 
> As documented in the manual
> "Most optimizations are only enabled if an -O level is set on the
> command line. Otherwise they are disabled, even if individual
> optimization flags are specified. "
> 
> http://gcc.gnu.org/onlinedocs/gcc-4.6.0/gcc/Optimize-Options.html
> 
> 

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