skip -O2 via-C

2008-09-20 Thread Serge D. Mechveliani
I take back my two recent reports about the effect of -O2, -fvia-C. Because 1) -O is sufficient, 2) there are too many issues that are more important than the behavior under -O2 and via-C. So, it is a good idea to save effort. Regards, - Serge Mechveliani [EMAIL PROTECTED]

Re: testing ghc-6.10-candidate

2008-09-20 Thread Serge D. Mechveliani
On Sat, Sep 20, 2008 at 11:25:57AM +0100, Simon Marlow wrote: > Serge D. Mechveliani wrote: > > >5. The same is for -O2. But this does not gain more performance. > > -O2 -fvia-C also does not gain more performance, but leads to 7 times > > longer compilation. > > Just to be sure: are you sa

Re: testing ghc-6.10-candidate

2008-09-20 Thread Simon Marlow
Serge D. Mechveliani wrote: 5. The same is for -O2. But this does not gain more performance. -O2 -fvia-C also does not gain more performance, but leads to 7 times longer compilation. Just to be sure: are you saying that with -O2 the compile time is ok, but when you add -fvia-C it take

Re: Instances and DoCon

2008-09-20 Thread Jason Dagit
On Sat, Sep 20, 2008 at 12:52 AM, Serge D. Mechveliani <[EMAIL PROTECTED]> wrote: > On Fri, Sep 19, 2008 at 08:17:12PM +0100, Ian Lynagh wrote: >> On Tue, Sep 16, 2008 at 10:44:53AM +0100, Simon Peyton-Jones wrote: >> > | >> > | And still ghc-6.8.3 builds itself from source. >> > >> > I have no id

Re: Instances and DoCon

2008-09-20 Thread Serge D. Mechveliani
On Fri, Sep 19, 2008 at 08:17:12PM +0100, Ian Lynagh wrote: > On Tue, Sep 16, 2008 at 10:44:53AM +0100, Simon Peyton-Jones wrote: > > | > > | And still ghc-6.8.3 builds itself from source. > > > > I have no idea how -- Happy has been needed for some time. Maybe someone > > else does. > > It's n