Hi gcc developers!
Tl;DR:
I would like to implement a scalable way to pass `-fmacro-prefix-map=`
for `NixOS` distribution to avoid leaking build-time paths generated by
`__FILE__` macros used by various libraries.
I need some guidance what path to take to be acceptable for `gcc`
upstream.
I hav
I completed a Fedora rawhide rebuild with an instrumented GCC (~14,500
packages). 156 packages failed to build with a logged -Wint-conversion
error. This number is much lower than what I expected, and I think we
should include -Wint-conversion in the GCC 14 changes.
My instrumentation isn't very
> Am 04.10.2023 um 16:16 schrieb Hanke Zhang :
>
> Richard Biener 于2023年10月4日周三 16:43写道：
>>
>>> On Wed, Oct 4, 2023 at 10:37 AM Richard Biener
>>> wrote:
>>>
>>> On Tue, Oct 3, 2023 at 6:30 PM Hanke Zhang via Gcc wrote:
Hi, I'm a little confused about the behavior of gcc when t
But when I change the code 'opstatus = rand()' to 'opstatus = rand()
%2', the probability of opstatus being 0 should be 50%, but the result
remains the same, i.e. still split at that point.
And the specific information can be found in Bugzilla, the link is
https://gcc.gnu.org/bugzilla/show_bug.cgi
Richard Biener 于2023年10月4日周三 16:43写道：
>
> On Wed, Oct 4, 2023 at 10:37 AM Richard Biener
> wrote:
> >
> > On Tue, Oct 3, 2023 at 6:30 PM Hanke Zhang via Gcc wrote:
> > >
> > > Hi, I'm a little confused about the behavior of gcc when the function
> > > is not inlined.
> > >
> > > Here is an examp
من الـ iPhone الخاص
* Richard Biener:
>> By disassembling the exe file generated by icc, I found that icc will
>> merge these two blocks with the example code below. So I think there
>> maybe some ways to make it.
>
> ... glibc for example allows user-provided printf format callbacks so
> printf might call back into
On Wed, 4 Oct 2023 at 09:04, Richard Biener via Gcc wrote:
>
> On Sun, Oct 1, 2023 at 9:20 PM Thomas Koenig via Gcc wrote:
> >
> > Hi,
> >
> > is there some sort of concise explanation of how to use the
> > scripts in contrib/reghunt? There is no real documentation
> > for what is in the directo
On Wed, Oct 4, 2023 at 10:37 AM Richard Biener
wrote:
>
> On Tue, Oct 3, 2023 at 6:30 PM Hanke Zhang via Gcc wrote:
> >
> > Hi, I'm a little confused about the behavior of gcc when the function
> > is not inlined.
> >
> > Here is an example code:
> >
> > int __attribute__((noinline)) foo() {
> >
On Tue, Oct 3, 2023 at 6:30 PM Hanke Zhang via Gcc wrote:
>
> Hi, I'm a little confused about the behavior of gcc when the function
> is not inlined.
>
> Here is an example code:
>
> int __attribute__((noinline)) foo() {
> return 1;
> }
>
> int main() {
> if (foo()) {
> printf("foo
On Mon, Oct 2, 2023 at 7:15 PM Hanke Zhang via Gcc wrote:
>
> Martin Jambor 于2023年10月3日周二 00:34写道：
> >
> > Hello,
> >
> > On Mon, Oct 02 2023, Hanke Zhang via Gcc wrote:
> > > Hi, I have some questions about the strategy and behavior of function
> > > splitting in gcc, like the following code:
>
On Sun, Oct 1, 2023 at 9:20 PM Thomas Koenig via Gcc wrote:
>
> Hi,
>
> is there some sort of concise explanation of how to use the
> scripts in contrib/reghunt? There is no real documentation
> for what is in the directory, specifically not how to invoke
> them, and which directory to invoke the
On Sun, Oct 1, 2023 at 6:13 AM Hanke Zhang wrote:
>
> Richard Biener 于2023年9月27日周三 15:30写道：
> >
> > On Wed, Sep 27, 2023 at 7:21 AM Hanke Zhang via Gcc wrote:
> > >
> > > Thanks! I understand what you mean, then can I think that if the
> > > function here is not an external function, but a funct
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