Re: [PATCH RFC] Finer grained reg classes.

2013-04-27 Thread Richard Sandiford
David Miller writes: > So this patch tries to rework the semantics of hard register classes, > such that if a hard register is present in the set it is implied that > the rest of the registers in a multi-register group are present as > well. So we can add a register class called EVEN_REGS and onl

Re: [PATCH RFC] Finer grained reg classes.

2013-03-19 Thread Steven Bosscher
On Tue, Mar 19, 2013 at 7:31 PM, Jeff Law wrote: > On 03/19/2013 11:58 AM, Ian Lance Taylor wrote: >> >> On Tue, Mar 19, 2013 at 8:33 AM, David Miller wrote: >>> >>> >>> So this patch tries to rework the semantics of hard register classes, >>> such that if a hard register is present in the set it i

Re: [PATCH RFC] Finer grained reg classes.

2013-03-19 Thread Jeff Law
On 03/19/2013 11:58 AM, Ian Lance Taylor wrote: On Tue, Mar 19, 2013 at 8:33 AM, David Miller wrote: So this patch tries to rework the semantics of hard register classes, such that if a hard register is present in the set it is implied that the rest of the registers in a multi-register group a

Re: [PATCH RFC] Finer grained reg classes.

2013-03-19 Thread Ian Lance Taylor
On Tue, Mar 19, 2013 at 8:33 AM, David Miller wrote: > > So this patch tries to rework the semantics of hard register classes, > such that if a hard register is present in the set it is implied that > the rest of the registers in a multi-register group are present as > well. So we can add a regis