I'm writing some optimized functions for gcc-arm in a library that obuses
shorts. So the problem I have is that in extremely many places resutls of my
optimized functions are needlessly sign or zero extended. That is, gcc adds
UXTH or SXTH opcode.
For example, imagine if I use clz instructions
On Fri, 18 May 2012, Ian Lance Taylor wrote:
> Joel Sherrill writes:
>
> > On 05/18/2012 08:27 AM, Ian Lance Taylor wrote:
> >> Ralf Corsepius writes:
> >>
> >>> I am not sure, but AFAICT, -pthread is Linux-specific.
> >> It's not properly documented, but -pthread works on a number of hosts,
> >>
On Fri, 18 May 2012, Joel Sherrill wrote:
> I don't mind having -pthread be a noop but the leap
> from a having a header file to having a specific gcc
> option is a stretch IMO. Unless EVERY gcc target with
> pthread support is required by gcc to have that option.
> Is that the undocumented(?) inte
On Fri, 18 May 2012, Ralf Corsepius wrote:
> On 05/18/2012 09:24 AM, Sebastian Huber wrote:
> > Hi,
> >
> > if I run the ARM GCC test suite for C and C++ with the arm-rtemseabi4.11
> > target, then I get several unexpected errors due to:
> >
> > gcc/testsuite/gcc/gcc.log:xgcc: error: unrecognized c
Lemmings,
What is the point of putting such an immense list of fragments of the
manual online? What if we loose out internet? Do you hate the thought of
making one whole file containing the whole manual available because no
one else does it that way? Are you lost in the world if you do not
fol
On 6/2/12 5:34 PM, Eric Botcazou wrote:
What are you after, exactly? Even on modern OSes, there might be glitches or
small incompatibilities that woud need to be fixed in order for GCC to work
properly, and fixincludes is the tried and proven tool to do that. It is
designed to modify only what
Snapshot gcc-4.7-20120602 is now available on
ftp://gcc.gnu.org/pub/gcc/snapshots/4.7-20120602/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 4.7 SVN branch
with the following options: svn://gcc.gnu.org/svn/gcc/branches
> OK, thanks for this reply. For a situation when the only available
> headers are the sanitized Linux headers and those from recent glibc
> (or some other modern libc) am I correct in assuming that this script
> is unnecessary and could, conceivably alter something that shouldn't
> be altered?
Wh
On Sat, 2 Jun 2012 11:47:51 -0700
Brett Foster wrote:
> On Sat, Jun 2, 2012 at 11:31 AM, Basile Starynkevitch
> wrote:
> > In the MELT meta-plugin (recall that MELT is a high-level domain specific
> > language to
> > extend GCC, see http://gcc-melt.org/ for more) we extensively use
> > associa
On Sat, Jun 2, 2012 at 11:31 AM, Basile Starynkevitch
wrote:
> In the MELT meta-plugin (recall that MELT is a high-level domain specific
> language to
> extend GCC, see http://gcc-melt.org/ for more) we extensively use associative
> hash-tables
> for that. MELT offers homogeneous hash-tables, e.
On Sat, 2 Jun 2012 20:31:26 +0200
Basile Starynkevitch wrote:
> In a few words, plugins cannot extend existing GCC data structures, but can
> associate them
> to their own data.
I forgot to mention that gimple-s (but not tree-s) give you a unsigned client
number
called a uid, which a single pas
On Sat, 2 Jun 2012 10:48:47 -0700
Brett Foster wrote:
> Hi all,
>
> I'm working on a GCC plugin, having made a lot of progress on that
> front. So far running my plugin works 'more or less' on things like
> the linux kernel. On the other hand running it on the plugin itself
> causes problems. Gi
On May 28, 2012, at 7:25 PM, Jonathan Wakely wrote:
> The "upstream packages" might be a third-party OS vendor who supply
> their own compiler and have no interest in supporting GCC. Even if the
> OS system headers get changed, that doesn't help users who have the
> unchanged version (e.g. someon
Hi all,
I'm working on a GCC plugin, having made a lot of progress on that
front. So far running my plugin works 'more or less' on things like
the linux kernel. On the other hand running it on the plugin itself
causes problems. Given that some of the data structures are pretty
complicated in GCC I
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