On Wed, Apr 24, 2013 at 5:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:35 PM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 09:36 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 2:44
On Wed, Apr 24, 2013 at 5:55 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 5:00 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at
On Thu, Apr 25, 2013 at 1:18 AM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 11:13 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:00 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Bienerrichard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:29
On 05/03/2013 07:34 AM, Richard Biener wrote:
On Thu, Apr 25, 2013 at 1:18 AM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 11:13 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:00 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard
On Fri, May 3, 2013 at 1:49 PM, Kenneth Zadeck zad...@naturalbridge.com wrote:
On 05/03/2013 07:34 AM, Richard Biener wrote:
On Thu, Apr 25, 2013 at 1:18 AM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 11:13 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:00 PM,
On 05/03/2013 08:12 AM, Richard Biener wrote:
On Fri, May 3, 2013 at 1:49 PM, Kenneth Zadeck zad...@naturalbridge.com wrote:
On 05/03/2013 07:34 AM, Richard Biener wrote:
On Thu, Apr 25, 2013 at 1:18 AM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 11:13 AM, Richard Biener
Richard Biener richard.guent...@gmail.com writes:
See e.g. the hoops that cselib has to jump through:
/* We need to pass down the mode of constants through the hash table
functions. For that purpose, wrap them in a CONST of the appropriate
mode. */
static rtx
wrap_constant (enum
On Fri, May 3, 2013 at 2:31 PM, Kenneth Zadeck zad...@naturalbridge.com wrote:
On 05/03/2013 08:12 AM, Richard Biener wrote:
On Fri, May 3, 2013 at 1:49 PM, Kenneth Zadeck zad...@naturalbridge.com
wrote:
On 05/03/2013 07:34 AM, Richard Biener wrote:
On Thu, Apr 25, 2013 at 1:18 AM, Kenneth
On 05/03/2013 07:19 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:35 PM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 09:36 AM, Richard
Kenneth Zadeck zad...@naturalbridge.com writes:
There are several problems with just dropping a mode into the already
existing mode field of an rtx constant.
1) There may be places where the a back end is testing equality to see
if constants of different modes are in fact the same value.
2)
On Fri, May 3, 2013 at 2:37 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
See e.g. the hoops that cselib has to jump through:
/* We need to pass down the mode of constants through the hash table
functions. For that purpose, wrap
On Fri, May 3, 2013 at 2:45 PM, Kenneth Zadeck zad...@naturalbridge.com wrote:
On 05/03/2013 07:19 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:35
On Fri, May 3, 2013 at 2:48 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Kenneth Zadeck zad...@naturalbridge.com writes:
There are several problems with just dropping a mode into the already
existing mode field of an rtx constant.
1) There may be places where the a back end is
Richard Biener richard.guent...@gmail.com writes:
5) All const_ints in the .md files would need to be given a mode
(except for those places where const_int actually represents
a C++ constant, such as in attributes).
I realise your list wasn't supposed to be exhaustive, and neither's
Richard Biener richard.guent...@gmail.com writes:
But storing the mode in the rtx is orthogonal to what Kenny is doing.
The mode of each rtx constant is already available in the places
that Kenny is changing, because we already do the work to keep track
of the mode separately. Being able to
On 05/03/2013 08:40 AM, Richard Biener wrote:
On Fri, May 3, 2013 at 2:31 PM, Kenneth Zadeck zad...@naturalbridge.com wrote:
On 05/03/2013 08:12 AM, Richard Biener wrote:
On Fri, May 3, 2013 at 1:49 PM, Kenneth Zadeck zad...@naturalbridge.com
wrote:
On 05/03/2013 07:34 AM, Richard Biener
On 05/03/2013 08:53 AM, Richard Biener wrote:
On Fri, May 3, 2013 at 2:37 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
See e.g. the hoops that cselib has to jump through:
/* We need to pass down the mode of constants through the
On 05/03/2013 09:02 AM, Richard Biener wrote:
On Fri, May 3, 2013 at 2:45 PM, Kenneth Zadeck zad...@naturalbridge.com wrote:
On 05/03/2013 07:19 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener
Richi,
I also think that it is a digression to have this discussion about
rtl.The root problem is really that Mike, Richard, and myself do not
believe that infinite precision math is the proper way to do math for
the majority of the compiler. Most of the compiler, at both the rtl
and
Richard Biener richard.guent...@gmail.com writes:
I suppose the above should use immed_double_int_const (v, mode), too,
In practice it doesn't matter, because...
which oddly only ever truncates to mode for modes = HOST_BITS_PER_WIDE_INT
via gen_int_mode.
...right. That's because there's not
On 04/24/2013 09:36 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 2:44 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
Can we in such cases please to a preparatory patch and change the
CONST_INT/CONST_DOUBLE paths to do an explicit
On Wed, Apr 24, 2013 at 4:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
I suppose the above should use immed_double_int_const (v, mode), too,
In practice it doesn't matter, because...
which oddly only ever truncates to mode for
On 04/24/2013 10:42 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 4:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
I suppose the above should use immed_double_int_const (v, mode), too,
In practice it doesn't matter, because...
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
In other words, one of the reasons wide_int can't be exactly 1:1
in practice is because it is clearing out these mistakes (GEN_INT
rather than gen_int_mode)
On Wed, Apr 24, 2013 at 4:35 PM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 09:36 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 2:44 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
Can we in such cases please
On Wed, Apr 24, 2013 at 5:00 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
In other words, one of the reasons wide_int can't be exactly 1:1
in
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:35 PM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
On 04/24/2013 09:36 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 2:44 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 5:00 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
In other words, one of
On 04/24/2013 11:13 AM, Richard Biener wrote:
On Wed, Apr 24, 2013 at 5:00 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Bienerrichard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 4:29 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
In other words, one of
On Tue, Apr 16, 2013 at 10:17 PM, Kenneth Zadeck
zad...@naturalbridge.com wrote:
Here is a refreshed version of the rtl changes for wide-int. the only
change from the previous versions is that the wide-int binary operations
have been simplified to use the new wide-int binary templates.
Richard Biener richard.guent...@gmail.com writes:
Can we in such cases please to a preparatory patch and change the
CONST_INT/CONST_DOUBLE paths to do an explicit [sz]ext to
mode precision first?
I'm not sure what you mean here. CONST_INT HWIs are already sign-extended
from mode precision to
On Wed, Apr 24, 2013 at 2:44 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
Can we in such cases please to a preparatory patch and change the
CONST_INT/CONST_DOUBLE paths to do an explicit [sz]ext to
mode precision first?
I'm not
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 2:44 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
Can we in such cases please to a preparatory patch and change the
CONST_INT/CONST_DOUBLE paths to do an
On Wed, Apr 24, 2013 at 4:03 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
On Wed, Apr 24, 2013 at 2:44 PM, Richard Sandiford
rdsandif...@googlemail.com wrote:
Richard Biener richard.guent...@gmail.com writes:
Can we in such cases
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