Re: Is this a bug: -mregparm=0 doesn't work with -O3?

I am actually doing some instrumentation on the binary code generated by gcc. I did it successfully for class methods and external functions but failed on the static functions. On Wed, Aug 28, 2013 at 3:12 PM, wrote: > > On Aug 28, 2013, at 3:02 PM, Wei Li wrote: > >> It'

Re: Is this a bug: -mregparm=0 doesn't work with -O3?

It's a static function. 32bit x86. I tried both gcc4.5.2 and gcc4.7.2, the behavior is same. On Wed, Aug 28, 2013 at 3:00 PM, wrote: > > > Sent from my iPad > > On Aug 28, 2013, at 2:57 PM, Wei Li wrote: > >> Hi, >> >> I am trying to disable pa

Is this a bug: -mregparm=0 doesn't work with -O3?

Hi, I am trying to disable pass arguments by register in my project. I suppose -mregparm=0 can do this but unfortunately it doesn't work with -O3. The arguments are still through registers even I specified -mregparm=0. I am not sure if this intentional or a bug? -mregparm is a specific option.