Re: IRA_COVER_CLASSES In gcc47

2012-03-23 Thread Vladimir Makarov
On 12-03-23 3:47 PM, Frédéric RISS wrote: Hi Valdimir Le vendredi 23 mars 2012 à 12:08 -0400, Vladimir Makarov a écrit : Since 4.7 we use more sophisticated trivial coloring criteria which work well even on intersected register classes. To be more accurate, we calculate an approximation of an

Re: IRA_COVER_CLASSES In gcc47

2012-03-23 Thread Frédéric RISS
Hi Valdimir Le vendredi 23 mars 2012 à 12:08 -0400, Vladimir Makarov a écrit : > Since 4.7 we use more sophisticated trivial coloring criteria which work > well even on intersected register classes. To be more accurate, we > calculate an approximation of an profitable hard regs for each pseudo.

Re: IRA_COVER_CLASSES In gcc47

2012-03-23 Thread Paulo J. Matos
Vladimir, Thanks for for the explanation. Cheers, Paulo Matos On 23/03/12 16:08, Vladimir Makarov wrote: On 03/23/2012 11:04 AM, Paulo J. Matos wrote: Hello, I am trying to find exactly what happened to IRA_COVER_CLASSES in gcc47. From what I have seen it seems that it was simply removed

Re: IRA_COVER_CLASSES In gcc47

2012-03-23 Thread Vladimir Makarov
On 03/23/2012 11:04 AM, Paulo J. Matos wrote: Hello, I am trying to find exactly what happened to IRA_COVER_CLASSES in gcc47. From what I have seen it seems that it was simply removed. Does the register allocator now automatically computes the cover classes? No. Before gcc4.7 we use

IRA_COVER_CLASSES In gcc47

2012-03-23 Thread Paulo J. Matos
Hello, I am trying to find exactly what happened to IRA_COVER_CLASSES in gcc47. From what I have seen it seems that it was simply removed. Does the register allocator now automatically computes the cover classes? Cheers, -- PMatos