On 03/18/10 08:30, Frank Isamov wrote:
From the h file:
#define REG_CLASS_CONTENTS \
{
\
{0x, 0x, 0x}, /* NO_REGS*/ \
{0x, 0x, 0x}, /* D_REGS*/ \
Hi,
In my backend, I have a problem with the pass which determines the
best register class for a virtual register (Pass 0 for finding allocno
costs).
In all insns in this example both R_REGS and D_REGS register classes
are applicable (but all registers in an insn should be from the same
register
The problem I see is that for registers 100,101 I get best register
class D instead of R - actually they get the same cost and D is chosen
(maybe because it is first).
Hi Frank.
Do D and R overlap? It would be useful to know which regs are in
which class, before trying to understand what is
-- Forwarded message --
From: Frank Isamov frank.isa...@gmail.com
Date: Thu, Mar 18, 2010 at 4:28 PM
Subject: Re: Coloring problem - Pass 0 for finding allocno costs
To: Ian Bolton bol...@icerasemi.com
On Thu, Mar 18, 2010 at 3:51 PM, Ian Bolton bol...@icerasemi.com wrote
-Original Message-
From: Frank Isamov [mailto:frank.isa...@gmail.com]
Sent: 18 March 2010 14:29
To: Ian Bolton
Subject: Re: Coloring problem - Pass 0 for finding allocno costs
On Thu, Mar 18, 2010 at 3:51 PM, Ian Bolton bol...@icerasemi.com
wrote:
The problem I see
Hi,
On Thu, 18 Mar 2010, Frank Isamov wrote:
From the h file:
#define REG_CLASS_CONTENTS \
{
\
{0x, 0x, 0x}, /* NO_REGS*/ \
{0x, 0x, 0x}, /* D_REGS*/ \
-Original Message-
From: gcc-ow...@gcc.gnu.org [mailto:gcc-ow...@gcc.gnu.org] On Behalf Of
Michael Matz
Sent: 18 March 2010 15:13
To: Frank Isamov
Cc: gcc@gcc.gnu.org
Subject: Re: Coloring problem - Pass 0 for finding allocno costs
Hi,
On Thu, 18 Mar 2010, Frank Isamov wrote
