On Fri, Dec 9, 2022 at 7:17 PM 刘畅 via Gcc wrote:
>
> Hi all,
>
> I met a problem when I was testing the weak attribute and the weakref
> attribute of GCC. I've read the documentation and in the 6.33.1 Common
> Function Attributes - weakref part I found:
>
> Without a target given as an argumen
Hi all,
I met a problem when I was testing the weak attribute and the weakref
attribute of GCC. I've read the documentation and in the 6.33.1 Common
Function Attributes - weakref part I found:
Without a target given as an argument to weakref or to alias,
weakref is equivalent to weak (in that
Thank you for your response.
Jonathan Wakely 于2022年12月9日周五 22:40写道：
> This question belongs on the gcc-help mailing list, not here.
>
> On Fri, 9 Dec 2022 at 12:01, hongjie wu via Gcc wrote:
> >
> > Dear Sir or Madam，
> > I want to know how to obtain optimal level of the value of the
>
Snapshot gcc-11-20221209 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/11-20221209/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 11 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
On 2022-12-09 14:23, Georg-Johann Lay wrote:
There is the following code size regression, filed as
https://gcc.gnu.org/PR90706
I am sorry, I feel your frustration. I was not aware of this PR.
Unfortunately, the PR was marked as P4 and I have too many open PRs and
should prioritize them.
On 12/9/22 21:19, Alejandro Colomar wrote:
Hi Martin,
On 12/9/22 21:04, mse...@gmail.com wrote:
Most of these warnings are designed to find simple mistakes in common use
cases so "tricky," unusual, or otherwise unexpected code is likely to lead to
surprises. This warning expects that in c
Hi Martin,
On 12/9/22 21:04, mse...@gmail.com wrote:
Most of these warnings are designed to find simple mistakes in common use cases so
"tricky," unusual, or otherwise unexpected code is likely to lead to surprises.
This warning expects that in calls to a function, every parameter declared u
> On Dec 6, 2022, at 9:22 AM, Alejandro Colomar via Gcc wrote:
>
> Hi!
>
> In the following function, past_end is a pointer to one-past-the-end of the
> array. Holding such a pointer is legal in C. I use it as a sentinel value
> that helps (1) avoid overrunning the buffer, and (2) detect tr
There is the following code size regression, filed as
https://gcc.gnu.org/PR90706
Simple test cases are, for example
#define PORT (*((unsigned char volatile*) 0x24))
unsigned short var16;
void func (void)
{
if (2048000ul * var16 > 120ul)
PORT |= 1;
}
When I compile it with
$
Thanks Iain for the summary/thanks everyone for the discussion!
On Fri, Dec 9, 2022 at 9:33 AM Iain Sandoe wrote:
>
> Hello all.
>
> > On 9 Dec 2022, at 01:58, chuanqi.xcq wrote:
> >
> > It looks like `-fmodule-file` is better from the discussion. So let's take
> > it. Thanks for everyone here
Hello all.
> On 9 Dec 2022, at 01:58, chuanqi.xcq wrote:
>
> It looks like `-fmodule-file` is better from the discussion. So let's take
> it. Thanks for everyone here
So FAOD (after this discussion) Chuanqi's current patchset implements the
following in clang:
-fmodule-output
- this cause
Hi Richard,
On 12/7/22 09:17, Richard Biener wrote:
[...]
The warnings are invalid. While it's true that I'm referencing a pointer of
size 0, it's false that I'm "accessing 1 byte" in that region. I guess this is
all about the bogus design of 'static' in ISO C, where you can have an array
par
Hi!
I expect mempcpy(3) to be at least as fast as memcpy(3), since it performs the
same operations, with the exception that mempcpy(3) returns something useful (as
opposed to memcpy(3), which could perfectly return void), and in fact something
more likely to be in cache, if the copy is perform
This question belongs on the gcc-help mailing list, not here.
On Fri, 9 Dec 2022 at 12:01, hongjie wu via Gcc wrote:
>
> Dear Sir or Madam，
> I want to know how to obtain optimal level of the value of the
What do you mean by optimal?
They have pros and cons.
> specific compiler options
Dear Sir or Madam，
I want to know how to obtain optimal level of the value of the
specific compiler options, for example - fexcess - precision = [fast |
standard] [default], including the default represent？Or how to determine?
I am looking forward to your favorable replay.
Dear team,
I am working in the compiler domain.
Can you please provide the source application where the mis-compilation
errors occurred which has been detected by the GCC compiler.
This support is very helpful for my PHD work.
-
P Rajshekhar Rao
Thanks and Regards
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