Andrew Hutchinson writes:
> I can use "=" modifier to make operands use same register and early
> clobber "&" to avoid overlaps.
>
> Is it possible to have or construct a contraint that permits partial
> overlap operands. (which neither = or & would allow)
> The case would be wide types taking m
Hi
I can use "=" modifier to make operands use same register and early
clobber "&" to avoid overlaps.
Is it possible to have or construct a contraint that permits partial
overlap operands. (which neither = or & would allow)
The case would be wide types taking multiple hard registers.
eg In
I'm currently porting a plug-in that used to target the 4.3.0-based
plug-in branch to the new top-of-tree plug-in system. I'm really
stymied by a bug whose source I just cannot track down! Usually that
means there is an error in my code, but the problem seems to involve
tree-ssa-dse.c and tree-ss
> "Benjamin" == Benjamin Smedberg writes:
Benjamin> Dehydra is going to switch from the generic user attribute to
Benjamin> specific GCC-registered attributes __attribute__((NS_final))
Benjamin> at some point when one of us can code it up.
Benjamin> I don't particularly like __attribute__((p
Tom Tromey wrote:
"Diego" == Diego Novillo writes:
Diego> void foo(void) __attribute__((user("bleh")));
Diego> foo.cc:1: warning: 'user' attribute directive ignored
Diego> We could change the compiler to never complain about the 'user'
Diego> attribute, unless plugins are loaded,but that als
On 10/16/09 12:11 PM, Tom Tromey wrote:
>> "Diego" == Diego Novillo writes:
>
> Diego> void foo(void) __attribute__((user("bleh")));
>
> Diego> foo.cc:1: warning: 'user' attribute directive ignored
>
> Diego> We could change the compiler to never complain about the 'user'
> Diego> attribute
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> "Diego" == Diego Novillo writes:
Diego> void foo(void) __attribute__((user("bleh")));
Diego> foo.cc:1: warning: 'user' attribute directive ignored
Diego> We could change the compiler to never complain about the 'user'
Diego> attribute, unless plugins are loaded,but that also seems incompl
On 10/16/09 08:53, Vladimir Makarov wrote:
The biggest problem of GCC RA is still reload pass. It frequently
changes decisions of IRA not in a good way.
Agreed. Not only may reload make a bad choice, it's horribly
unpredictable. Trivial changes often lead to drastically different
reloading
> > 9drpc.adb:-- Copyright (C) 1992-2009, Free Software
> > Foundation, Inc. --
> > a-assert.adb:-- Copyright (C) 2007-2009 Free Software
> > Foundation, Inc. --
> >
> > Are both of these OK? Should they be changed
> > to be the same?
> >
> > I doubt it makes any
Ian Bolton wrote:
I hope you could also make some suggestions as to how I might
help IRA work well with our instructions that can only use a subset
of the register bank.
I forgot to write: thanks, it would be interesting for me to see your
suggestions :)
Ian Bolton wrote:
Hi Vladimir,
I have just begun working for Icera Inc, on a private port of GCC,
and my first task has been to investigate the performance impact of
using the Chaitin-Briggs algorithm of IRA vs the priority algorithm
that we currently have enabled in our production compiler (due
Basile STARYNKEVITCH wrote:
A more sophisticated variant would be to have every attribute belonging
to some attribute class, and have Wno-attributes=attributeclass but I
feel that is too complex!
An even more crazy idea would be to interpret the argument to
-Wno-attribute as a regular expre
Joel Sherrill writes:
> In checking my local changes, I noticed a minor
> difference in how the Ada source files have their
> Copyright notice. Some have a comma between the
> years and party, others do not.
>
> 9drpc.adb:-- Copyright (C) 1992-2009, Free Software
> Foundation, Inc.
Hi Vladimir,
I have just begun working for Icera Inc, on a private port of GCC,
and my first task has been to investigate the performance impact of
using the Chaitin-Briggs algorithm of IRA vs the priority algorithm
that we currently have enabled in our production compiler (due to not
defining IRA
Diego Novillo wrote:
On Fri, Oct 16, 2009 at 08:44, Basile STARYNKEVITCH
wrote:
I have a simpler suggestion:
every attribute whose name starts with an underscore like "_user" or
"_foogreen" or "_BORING" never produce any warnings, except perhaps in the
plugin handling it.
Yeah. Or perhaps
Wow, it seems more complicated then me.
I think I will modify my approach to :
- Add a node PRAGMA in the tree level when parsing the loop
- As soon as the loop structures are in place, find the pragma, update
the loop structure, remove the node
- Before the loop structure is lost due to the tr
Hi,
In checking my local changes, I noticed a minor
difference in how the Ada source files have their
Copyright notice. Some have a comma between the
years and party, others do not.
9drpc.adb:-- Copyright (C) 1992-2009, Free Software Foundation,
Inc. --
a-assert.adb:--
[ Posting again to gcc@ ]
On Fri, Oct 16, 2009 at 09:12, Benjamin Smedberg wrote:
> On 10/16/09 8:17 AM, Diego Novillo wrote:
>
>> void foo(void) __attribute__((user("bleh")));
>>
>> GCC will complain
>>
>> foo.cc:1: warning: 'user' attribute directive ignored
>>
>> whenever dehydra is not loaded
On Fri, Oct 16, 2009 at 08:44, Basile STARYNKEVITCH
wrote:
> I am surprised & delighted that Diego mentions Dehydra. I thought it was
> Taras Glek's plugin, so Mozilla (not Google) related.
Dehydra still is developed by Mozilla. We are just starting to use it
internally to implement some analys
Diego Novillo wrote:
Given
void foo(void) __attribute__((user("bleh")));
GCC will complain
foo.cc:1: warning: 'user' attribute directive ignored
whenever dehydra is not loaded.
I am surprised & delighted that Diego mentions Dehydra. I thought it was
Taras Glek's plugin, so Mozilla (not Go
Given
void foo(void) __attribute__((user("bleh")));
GCC will complain
foo.cc:1: warning: 'user' attribute directive ignored
whenever dehydra is not loaded. Since our build system uses -Werror
for every build, users are not really able to use this attribute in
their dehydra scripts. Has anyone
Last news in http://gcc.gnu.org/java/ are dated March 2007.
Also I submitted few PRs a month ago and there is no response at all.
Yuri
The basic idea is the same as what is described in this thread.
http://gcc.gnu.org/ml/gcc/2008-05/msg00436.html
But I made many changes on Alex's method.
Pragmas are encoded into names of the helper functions because
they are not optimized out by tree-level optimizer. These
pseudo functions are
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