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This snapshot has been generated from the GCC 12 git branch
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The first release candidate for GCC 15.1 is available from
https://gcc.gnu.org/pub/gcc/snapshots/15.1.0-RC-20250418/
ftp://gcc.gnu.org/pub/gcc/snapshots/15.1.0-RC-20250418/
and shortly its mirrors. It has been generated from git commit
r15-9556-g96171a5cc7b99cb6.
I have so far bootstrapped
Status
==
We have reached zero P1 regressions and branched for the GCC 15
release. This leaves trunk which is to become GCC 16 next year
open for general development, Stage 1, again. Please refrain
from disrupting git master too much so that last-minute fixes
for GCC 15.1 can be staged
We have branched for the GCC 15 release. All changes on the releases/gcc-15
branch require release manager approval now.
Quality Data
Priority # Change from last report
--- ---
P1 - 17
P2 580
++ gcc@gcc.gnu.org
> -Original Message-
> From: Wasim Khan
> Sent: 15 April 2025 12:41
> To: gcc-h...@gcc.gnu.org
> Subject: GCOV issue with GCC-14.2
>
> Hi,
>
> I am using GCOV for test coverage in a project using instructions for
> freestanding environm
Hi, sorry for bumping this again
I forgot to mention that Windows inlining, from what I remember, was
ok before gcc 14 landed. It seemed that only once gcc 14 came about
that the insane inlining started happening. This might point to the
inlining heuristics having changed, but unfortunately gcc
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Thanks a lot, Andi!
I’ve submitted the final version of the proposal on the GSoC platform. I
really appreciate your feedback, as well as the input from everyone who
took the time to review and help refine the idea. It made a significant
difference.
I hope for the opportunity to contribute to GCC
Hello
Apologies for sending my draft proposal so close to the deadline. You
can find it here:
https://docs.google.com/document/d/1UL-mGDWyfEjne3f6uEZOI5KG4s9XTP53QZ_LJjoqn-s/edit?usp=sharing
Please share any comments or suggestions you might have. If any
section needs more clarity, do let me know,
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On 2025-04-06 10:46, Eldar Kusdavletov wrote:
Thanks, Andi — I’ve updated the proposal to reflect your feedback,
especially around separating frontend and backend phases. I now
describe the backend instrumentation as building on existing
per-function timevars and focusing on trace formatting and
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hear that LTO support on Windows is behind Linux though. I'd help
> get that up to speed if I could, but I don't even know where to start
> or look :(
You can see what -fuse-linker-plugin says, what gcc/auto-host.h contains
for HAVE_LTO_PLUGIN. I don't know whether the BFD linke
On Mon, Mar 31, 2025 at 11:14:47PM +0300, Eldar Kusdavletov wrote:
> I wanted to follow up on my previous email regarding my interest in
> participating in Google Summer of Code with GCC. I saw the discussion in the
> thread, but it seems there was no final confirmation.
>
> Could
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> You can see what -fuse-linker-plugin says, what gcc/auto-host.h contains
> for HAVE_LTO_PLUGIN. I don't know whether the BFD linker (or mold)
> supports linker plugins on windows. I do know that libiberty simple-object
> does not support PE, that is, at _least_ (DWARF) debugin
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Hello,
and sorry for a somewhat late reply.
On Fri, Mar 28 2025, Ansh Jaiswar via Gcc wrote:
> Dear GCC Developers,
>
> I am Ansh Jaiswar , a second-year Computer Science student interested in
> compilers and systems programming. I have experience with C/C++ and basic
> kn
On Fri, Apr 04, 2025 at 07:21:47AM +0300, Eldar Kusdavletov wrote:
> Thanks. I’ve submitted a more concrete version of the proposal — attaching it
> here.
>
> I’ve taken a brief look at Clang’s implementation, but the idea isn’t to
> follow
> it exactly — rather, to provide a similar kind of trac
mber
> of passes there At that level you (and likely should) account
> below functions to individual statements and declarations.
> You may also need to limit yourself to specific
> languages (e.g. C/C++ only)
>
> I would separate these two cases in the project plan because
>
On Mon, Mar 31, 2025 at 1:20 PM Julian Waters via Gcc wrote:
>
> Hi all,
>
> I've been trying to chase down an issue that's been driving me insane
> for a while now. It has to do with the flatten attribute being
> combined with LTO. I've heard that flatten a
> On Tue, Apr 1, 2025 at 8:07 PM Jose E. Marchesi
> wrote:
>>
>> Hello Piyush.
> Hello Jose,
>
>> Sounds like a quite good background.
> Thank you!
>
>> Have you built GCC from sources?
> Yes, I have. I built GCC while working on LFS and recently reb
On Tue, Apr 1, 2025 at 8:07 PM Jose E. Marchesi
wrote:
>
> Hello Piyush.
Hello Jose,
> Sounds like a quite good background.
Thank you!
> Have you built GCC from sources?
Yes, I have. I built GCC while working on LFS and recently rebuilt it,
running the test suite while going through
On Wed, Apr 2, 2025 at 6:35 AM Thomas Schwinge wrote:
>
> On 2025-03-31T19:48:16+0530, Astha Pipania via Gcc wrote:
> > I hope you're doing well!
>
> Astha, welcome to GCC!
>
> > I'm incredibly excited about the "GCC Go Escape
> > Analysis&qu
Hi Astha, Ian!
On 2025-03-31T19:48:16+0530, Astha Pipania via Gcc wrote:
> I hope you're doing well!
Astha, welcome to GCC!
> I'm incredibly excited about the "GCC Go Escape
> Analysis" project for GSoC 2025.
... which is listed on
<https://gcc.gnu.org/
Hello Piyush.
> I’m resending this email from my university account as my previous
> message isn’t showing in the GCC mailing list archives. I’ve cc’d the
> project mentors in case this email also fails to deliver. Apologies
> for any duplicate notifications, and thank
On Mon, Mar 31, 2025 at 9:15 PM Eric Botcazou wrote:
>
> > You can see what -fuse-linker-plugin says, what gcc/auto-host.h contains
> > for HAVE_LTO_PLUGIN. I don't know whether the BFD linker (or mold)
> > supports linker plugins on windows. I do know that libiberty
I wanted to follow up on my previous email regarding my interest in
participating in Google Summer of Code with GCC. I saw the discussion in
the thread, but it seems there was no final confirmation.
Could you please let me know if everything is in order and whether I can
proceed with submitting
I hope you're doing well! I'm incredibly excited about the "GCC Go Escape
Analysis" project for GSoC 2025. I've spent time reviewing past
contributions, including the 2024 work related to Go in GCC, and I’m eager
to build on that progress in a meaningful way.
After going
p to speed if I could, but I don't even know where to start
or look :(
best regards,
Julian
On Mon, Mar 31, 2025 at 8:09 PM Richard Biener
wrote:
>
> On Mon, Mar 31, 2025 at 1:20 PM Julian Waters via Gcc wrote:
> >
> > Hi all,
> >
> > I've been trying to ch
ining works on the 2 platforms, what
are the differences (If any) between Linux and Windows when it comes
to inlining, particularly involving the flatten attribute? Is there a
list of differences that is easily accessible somewhere, or
alternatively is there somewhere in the gcc source where the
he
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Dear GCC Mentors,
I hope this email finds you well.
My name is Harsh Gupta, and I am a second-year BTech Computer Science and
Design student at Madhav Institute of Technology and Science in Gwalior,
India. I am passionate about systems programming, compilers, and
open-source software. I am
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Hey folks,
My colleague Nicolas Savoire created a compiler reproducer[0] for the
effect -- you can see a side-by-side comparison of code compiled with GCC
8.x and 9.x where 8.x emits fmov instructions and 9.x does not. He further
used this example as a git bisect criteria and eventually found the
Dear GCC Developers,
I am Ansh Jaiswar , a second-year Computer Science student interested in
compilers and systems programming. I have experience with C/C++ and basic
knowledge of Rust.
I am applying for GSoC 2025 and am particularly interested in the "Rewrite Rust
Lints" project
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Jakub Jelinek via Gcc writes:
> On Tue, Mar 25, 2025 at 07:21:32AM +0300, Eldar Kusdavletov via Gcc wrote:
>> *Dear GCC Mentoring Team,*
>> I am writing to submit my proposal for the Google Summer of Code (GSoC)
>> 2025 program, aiming to contribute to the GCC proj
On Tue, Mar 25, 2025 at 07:21:32AM +0300, Eldar Kusdavletov via Gcc wrote:
> *Dear GCC Mentoring Team,*
> I am writing to submit my proposal for the Google Summer of Code (GSoC)
> 2025 program, aiming to contribute to the GCC project by implementing a
> feature similar to Clang&#x
al shortly.
Take care,
-Tuck
On Mon, Mar 24, 2025 at 10:02 PM Tucker Taft wrote:
> Thanks, Martin. We expect it to be a medium size project. And we will be
> sure that Ethan can build, test, and debug the GNAT-FE and other GCC
> components.
>
> Take care,
> -Tuck
>
> On M
*Dear GCC Mentoring Team,*
I am writing to submit my proposal for the Google Summer of Code (GSoC)
2025 program, aiming to contribute to the GCC project by implementing a
feature similar to Clang's -ftime-trace. This feature generates performance
reports detailing the compiler's time di
Thanks, Martin. We expect it to be a medium size project. And we will be
sure that Ethan can build, test, and debug the GNAT-FE and other GCC
components.
Take care,
-Tuck
On Mon, Mar 24, 2025 at 7:23 PM Martin Jambor wrote:
> Hello,
>
> in general the project proposal looks very goo
Hello,
in general the project proposal looks very good. A few comments inline:
On Tue, Mar 18 2025, Tucker Taft via Gcc wrote:
>
[...]
> The GNAT front end is organized into three basic phases, a parser, a
> semantic analyzer, and an expander. In the sources, these are represented
&g
On Sun, 2025-03-23 at 09:21 +0530, mannem navyasree via Gcc wrote:
> Hi, I’m Navya sree mannem , new to GCC. I’d like to learn how to
> contribute, maybe in improving GCC’s optimization passes to make
> compiled
> code faster. Can anyone suggest a starting point or mentor me?”
Hi!
Title: Type-Based Alias Analysis in GCC using TySan
Overview
Both LLVM and GCC share a common sanitizer library called libsanitizer.
Recently, libsanitizer has introduced support for Type-Based Sanitization
(TySan). The goal of this project is to investigate and prototype the use of
type
Thank you! Yes, I realize we need to submit the proposal to the GSoC
program, and I believe we can do so starting today.
Take care,
-Tuck
On Sun, Mar 23, 2025 at 11:28 PM Sam James wrote:
> Tucker Taft via Gcc writes:
>
> > Proposal: Google Summer of Code on GCC A
Tucker Taft via Gcc writes:
> Proposal: Google Summer of Code on GCC Ada Front end
>
>-
>
>Goal : Implement some of the light-weight parallelism features of Ada
>2022 in the GNAT front end
>-
>
>Contributor: Ethan Luis McDonough, PSU '2025 (
&
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Hi, I’m Navya sree mannem , new to GCC. I’d like to learn how to
contribute, maybe in improving GCC’s optimization passes to make compiled
code faster. Can anyone suggest a starting point or mentor me?”
Snapshot gcc-12-20250320 is now available on
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Hi there,
Our first-ever [Live Memorabilia Auction][1] features many enticing
pieces of free software history. We think that members of the Gcc
mailing list might be especially interested in the original [GCC GNU
letter drawings by Etienne Suvasa][2].
[1]: https://www.fsf.org/news/fsf-40
Hello
Antoni Boucher wrote:
> We're trying to remove the duplication of the attributes code between
> the C and libgccjit frontend.
> The attached patch shows a draft of this attempt that only supports a
> few attributes.
> Would that kind of approach be acceptable (I'm not sure since this
> in
Proposal: Google Summer of Code on GCC Ada Front end
-
Goal : Implement some of the light-weight parallelism features of Ada
2022 in the GNAT front end
-
Contributor: Ethan Luis McDonough, PSU '2025 (
ethanluismcdono...@gmail.com)
-
Mentors: S. Tucker Taft (Lexi
know if these bugs
>> have been fixed or are unnecessary.
>
> Finding easy hacks in GCC is difficult. That is why there are so few,
> they are outdated (though if any of the issues has been already solved,
I wanted to write that they are *often* outdated, not that they have
to be.
community .
> > And a developer told me that I can browse this web "
> > https://gcc.gnu.org/bugzilla/buglist.cgi?keywords=easyhack&list_id=113937&resolution=---";
> > .But most of these easyhacks are too old . I don't know if these bugs
> > have been
gcc.gnu.org/bugzilla/buglist.cgi?keywords=easyhack&list_id=113937&resolution=---";
> .But most of these easyhacks are too old . I don't know if these bugs
> have been fixed or are unnecessary.
Finding easy hacks in GCC is difficult. That is why there are so few,
they are ou
Hi,
I trust you're doing well.
The buyer list for MIPIM 2025 is available, featuring 25369 quality contacts
with no restrictions on usage.
If this interests you, kindly let me know, and I can send over the pricing and
additional information.
Looking forward to hearing from you.
Best regards,
Hello,
Your assignment/disclaimer process with the FSF is currently
complete; your fully executed PDF will be sent to you in a separate
email immediately following this one.
Please remember to let us know when your employment status changes, as
this may affect your assignment status.
Thank you f
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ht to be
a pop-up warning you against doing this (I'm not sure why it didn't show
up).
Please use a specific architecture e.g. `-march=skylake-avx512` -
https://godbolt.org/z/GvTcqasqK
Thanks, Matt :)
On Mon, Mar 10, 2025 at 10:47 AM Qwert Nerdish via Gcc
wrote:
> Correct link i
Correct link is https://godbolt.org/z/GfeTobMvs
On Mon, Mar 10, 2025 at 4:45 PM Qwert Nerdish wrote:
> On this godbolt link at https://godbolt.org/z/GfeTobMvs, the two C source
> codes behave identical.
> Yet the second source code does not use vectors and is 30% slower when I
> tested it.
>
Thanks for the report! Please file it at
https://gcc.gnu.org/bugzilla/enter_bug.cgi?product=gcc
On Mon, Mar 10, 2025 at 10:47 AM Qwert Nerdish via Gcc
> wrote:
>
> > Correct link is https://godbolt.org/z/GfeTobMvs
> >
> > On Mon, Mar 10, 2025 at 4:45 PM Qwert Nerdish
On this godbolt link at https://godbolt.org/z/GfeTobMvs, the two C source
codes behave identical.
Yet the second source code does not use vectors and is 30% slower when I
tested it.
On Mon, 10 Mar 2025 at 09:09, Gwen Fu wrote:
>
> Thank you! After replacing the outdated centOS operating system and compiling
> for eight hours（That's carzy to me）, I have successfully installed and built
> gcc😂😂
Like it says at https://gcc.gnu.org/wiki/InstallingGCC &quo
Thank you! After replacing the outdated centOS operating system and
compiling for eight hours（That's carzy to me）, I have successfully
installed and built gcc😂😂
Jonathan Wakely 于 2025年3月8日周六 下午5:25写道：
>
>
> On Sat, 8 Mar 2025, 08:43 LIU Hao via Gcc, wrote:
>
>> 在 202
Snapshot gcc-15-20250309 is now available on
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On Sat, 8 Mar 2025, 08:43 LIU Hao via Gcc, wrote:
> 在 2025-3-8 15:20, Gwen Fu 写道:
> > OS : CentOS7
> > The official documentation doesn't mention any installation requirement
> about lib{isl , zstd} .
>
> [please reply to all.]
>
But not on this list, it b
在 2025-3-8 15:20, Gwen Fu 写道:
OS : CentOS7
The official documentation doesn't mention any installation requirement about
lib{isl , zstd} .
[please reply to all.]
They are mentioned, but are optional:
https://gcc.gnu.org/install/prerequisites.html
And I run "../gcc/configure
Also please use the gcc-help list for questions like this.
On Sat, 8 Mar 2025, 08:24 Jonathan Wakely, wrote:
>
>
> On Sat, 8 Mar 2025, 06:34 Gwen Fu via Gcc, wrote:
>
>> After I finished ../gcc/configure --prefix=$HOME/GCC-4.6.2
>> --enable-languages=c,c++,fortra
On Sat, 8 Mar 2025, 06:34 Gwen Fu via Gcc, wrote:
> After I finished ../gcc/configure --prefix=$HOME/GCC-4.6.2
> --enable-languages=c,c++,fortran --disable-multilib , I executed "make -j
> 2" . However , error occurred !
>
I assume you copied this from https://GCC.gnu.
On Sat, 8 Mar 2025, 06:55 LIU Hao via Gcc, wrote:
> 在 2025-3-8 14:33, Gwen Fu via Gcc 写道:
> > After I finished ../gcc/configure --prefix=$HOME/GCC-4.6.2
> > --enable-languages=c,c++,fortran --disable-multilib , I executed "make -j
> > 2" . However , error occ
在 2025-3-8 14:33, Gwen Fu via Gcc 写道:
After I finished ../gcc/configure --prefix=$HOME/GCC-4.6.2
--enable-languages=c,c++,fortran --disable-multilib , I executed "make -j
2" . However , error occurred !
What system are you using? You should not specify `--prefix` unless you kn
After I finished ../gcc/configure --prefix=$HOME/GCC-4.6.2
--enable-languages=c,c++,fortran --disable-multilib , I executed "make -j
2" . However , error occurred !
...(,omit unnecessary info)
checking whether gcc -std=gnu99 supports -pedantic -Wlong-long... yes
checking whethe
Snapshot gcc-13-20250307 is now available on
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On Wed, 5 Mar 2025 at 14:05, Richard Earnshaw (lists)
wrote:
>
> On 05/03/2025 13:47, Jonathan Wakely wrote:
> > On Wed, 5 Mar 2025 at 13:37, Richard Earnshaw (lists)
> > wrote:
> >>
> >> On 05/03/2025 13:10, Jonathan Wakely via Gcc wrote:
> >>&g
On 05/03/2025 13:47, Jonathan Wakely wrote:
> On Wed, 5 Mar 2025 at 13:37, Richard Earnshaw (lists)
> wrote:
>>
>> On 05/03/2025 13:10, Jonathan Wakely via Gcc wrote:
>>> While onboarding somebody today we noticed an error in the
>>> customization script if
On Wed, 5 Mar 2025 at 13:37, Richard Earnshaw (lists)
wrote:
>
> On 05/03/2025 13:10, Jonathan Wakely via Gcc wrote:
> > While onboarding somebody today we noticed an error in the
> > customization script if you use a non-default value for the local
> > prefix.
> >
On 05/03/2025 13:10, Jonathan Wakely via Gcc wrote:
> While onboarding somebody today we noticed an error in the
> customization script if you use a non-default value for the local
> prefix.
>
> I reproduced it with bash -x to show where it happens. In the output
> below I e
While onboarding somebody today we noticed an error in the
customization script if you use a non-default value for the local
prefix.
I reproduced it with bash -x to show where it happens. In the output
below I entered "jw" as the local prefix, instead of the default "me":
+ echo 'Setting up track
ear has passed, Google has announced there will be again Google
> Summer of Code (GsoC) in 2025 and the deadline for organizations to
> apply is already approaching (February 11th). I'd like to volunteer to
> be the main org-admin for GCC again but let me know if you think I
> should
> But I have a new emulator called mfemul.c, and it
> isn't very mature and almost certainly has a bug in
> it that is affecting gcc 3.2.3. And since that is the only
> Any suggestions on where to stick some printfs so that
> I can start looking for a divergence, given that
Snapshot gcc-15-20250302 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/15-20250302/
and on various mirrors, see https://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 15 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
Hello.
I have a mainframe operating system called z/PDOS-generic
available from https://pdos.org
I have ported a slightly modified gcc 3.2.3 (called
gccmvs) to it, and when run under Hercules/380
(mainframe emulator) it works fine and gccmvs is
able to reproduce itself byte-exact.
But I have a
Snapshot gcc-14-20250301 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/14-20250301/
and on various mirrors, see https://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 14 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
Snapshot gcc-13-20250301 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/13-20250301/
and on various mirrors, see https://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 13 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
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