Bug#431139: help with mplayer bug 431139

2007-09-01 Thread Tom Evans
This is all correct, but again, the mplayer code explicitly checks the cputype at runtime and dyanmically uses the most efficient code. So, it should be possible to build for all systems (ev5) and yet maintain the performance of MVI for systems that support it. ...tom Helge Kreutzmann wro

Bug#431139: help with mplayer bug 431139

2007-09-01 Thread Helge Kreutzmann
Hello, On Sun, Aug 26, 2007 at 04:15:27PM -0700, Steve Langasek wrote: > On Sun, Aug 26, 2007 at 09:12:27PM +0200, A Mennucc wrote: > > By looking in > > http://buildd.debian.org/fetch.cgi?pkg=mplayer;ver=1.0%7Erc1-15;arch=alpha;stamp=1185972985 > > I deduced that indeed "configure" detects the CPU

Bug#431139: help with mplayer bug 431139

2007-08-27 Thread Steve Langasek
On Mon, Aug 27, 2007 at 12:33:44PM +0200, A Mennucc wrote: > I am currently tryin to figure out what I should set in '-mcpu' : is it > DEB_HOST_GNU_CPU ? Er, preferably nothing at all. There's no good reason to be overriding gcc's default optimization here; your package should be targetting the

Bug#431139: help with mplayer bug 431139

2007-08-26 Thread Tom Evans
Turns out it was simple to find the code in question. The code already checks the amask bits for MVI availability with CAN_COMPILE_ALPHA_MVI . So, there should be a way to keep CAN_COMPILE_ALPHA_MVI set but keep the rest of the program from using ev67 specific instructions - the mvi acceler

Bug#431139: help with mplayer bug 431139

2007-08-26 Thread Steve Langasek
On Sun, Aug 26, 2007 at 09:12:27PM +0200, A Mennucc wrote: > I add another info > By looking in > http://buildd.debian.org/fetch.cgi?pkg=mplayer;ver=1.0%7Erc1-15;arch=alpha;stamp=1185972985 > I deduced that indeed "configure" detects the CPU of the buildd , as follows > > Checking for GCC & CPU o

Bug#431139: help with mplayer bug 431139

2007-08-26 Thread Tom Evans
Alternatively the code could have checks for the appropriate features by using the amask instruction and chose the correct code sequences - probably a win in the MVI cases, unclear about the itoft cases. It would have to be looked at to see what code path tricks could be played. Is this code i

Bug#431139: help with mplayer bug 431139

2007-08-26 Thread A Mennucc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 hi I add another info By looking in http://buildd.debian.org/fetch.cgi?pkg=mplayer;ver=1.0%7Erc1-15;arch=alpha;stamp=1185972985 I deduced that indeed "configure" detects the CPU of the buildd , as follows > Checking for GCC & CPU optimization abiliti