Re: why aarch64 doesn't support V4QI.

On 15/12/2020 14:26, 172060...@hdu.edu.cn wrote: > Hi, > > I have some problems in gcc development about aarch64. I saw it doesn't > support > V4QI machine mode in aarch64-modes.def, but it has V4QI in arm-modes.def. > > I want to know why it doesn't? > &

I want to sponsor post at these sites

*Hi Dear,* *I hope you are doing well.* What's is the price at this sitehttps://gcc.gnu.org/ I am interested in guest posting service. Please tell me your price for *Sponsor Post*

GSoC 2021 project help

Hi everyone I came across the list of project ideas that were selected for GSoC 2020 and I'm interested in contributing to the project regarding the *Implementation of OMPD in GCC, libgomp, and GDB. * I was able to build GCC from source, as specified in the *Before you apply* section. Is

Re: C++11 code in the gcc 10 branch

FX via Gcc writes: > I’m trying to bootstrap a GCC 10 compiler on macOS with clang, and I am > getting errors in stage 1, because there is C++11 code that is rejected by > clang (because the bootstrap involves compiling stage 1 with -std=gnu++98, > online on master (see top-level

Re: GSoC 2021 project help

Hi Martin, Thank you very much for the detailed response. On Tue, Dec 22, 2020 at 3:37 AM Martin Jambor wrote: > > Hi Adharsh, > > I will be the GSoC organizer for GCC the next year (unless someone else > wants to be). > > On Sun, Dec 20 2020, Adharsh Kamath via Gcc wrote:

Re: Add -fdirect-access-external-data

On Sat, Dec 26, 2020 at 7:32 AM Florian Weimer wrote: > > * Fangrui Song: > > > Hi, I filed https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98112 which > > proposes -fdirect-access-external-data to address some x86-64 > > GCC/binutils pain[1] and also benefit non-x86

Re: Potential bug in GCC when compiling C to a flat binary

On Sat, Dec 26, 2020 at 5:41 PM Rhys Rustad-Elliott wrote: > > Hi all, > > I've encountered a strange issue when compiling C to a flat binary with GCC. > It's questionably a bug, but I hesitate to strongly say that due to my lack of > familiarity with the GCC cod

Re: Potential bug in GCC when compiling C to a flat binary

On Sat, 26 Dec 2020, Andrew Pinski via Gcc wrote: > Two things, this should really be on the binutils mailing list rather > than the GCC mailing list. Second you can't generate a flat binary > which has a GOT as it requires relocations and there is no way to > represent re

Google GSOC Idea

in js. Therefore, I want to create a subset of gcc that can be statically compiled and contains the ecmascript standards required to run common js frameworks native. What are your comments on this idea? What can we say about the acceptability for gsoc? It is comprehensive , but I think it will come

Any possibility to support link with msvc stl just like clang??

That would be fun. Sent from Mail for Windows 10

Re: More consistency for Git log messages?

On Mon, 28 Dec 2020, 23:55 Gerald Pfeifer, wrote: > Having spent a bit more time with GCC sources (as opposed to wwwdocs) > recently and looking for prior art to guide me, I noticed there's a > lot of options to specific the ChangeLog file(s) to use. > > And corr

Re: Any possibility to support link with msvc stl just like clang??

On Tue, 29 Dec 2020, 05:23 sotrdg sotrdg via Gcc, wrote: > That would be fun. > First you'd need to patch GCC to understand all the MSVC intrinsics or patch MS STL to use GCC intrinsics. Both are open source so it is probably possible, but you should be prepared do the work your

What is the type of vector signed + vector unsigned?

Any thoughts on what f should return in the following testcase, given the usual GNU behaviour of treating signed >> as arithmetic shift right? typedef int vs4 __attribute__((vector_size(16))); typedef unsigned int vu4 __attribute__((vector_size(16))); int f (void) { vs4 x

Re: What is the type of vector signed + vector unsigned?

On December 29, 2020 6:42:30 PM GMT+01:00, Marc Glisse wrote: >On Tue, 29 Dec 2020, Richard Sandiford via Gcc wrote: > >> Any thoughts on what f should return in the following testcase, given >the >> usual GNU behaviour of treating signed >> as arithmetic shift righ

Re: What is the type of vector signed + vector unsigned?

On Tue, 29 Dec 2020, Richard Biener via Gcc wrote: > >I think clang follows gcc and uses the type of the first operand. > > The desired behavior is the one that OpenCL specifies. If it is implementation > defined we should document behavior. I agree symmetry is nice but eventuall

Re: More consistency for Git log messages?

On Wed, Dec 30, 2020 at 6:21 AM Segher Boessenkool wrote: > > On Tue, Dec 29, 2020 at 12:54:53AM +0100, Gerald Pfeifer wrote: > > Having spent a bit more time with GCC sources (as opposed to wwwdocs) > > recently and looking for prior art to guide me, I noticed there's

Re: More consistency for Git log messages?

On Tue, Dec 29, 2020 at 12:54:53AM +0100, Gerald Pfeifer wrote: > Having spent a bit more time with GCC sources (as opposed to wwwdocs) > recently and looking for prior art to guide me, I noticed there's a > lot of options to specific the ChangeLog file(s) to use. > > And c

Re: More consistency for Git log messages?

On 12/29/20 1:49 AM, Jonathan Wakely via Gcc wrote: On Mon, 28 Dec 2020, 23:55 Gerald Pfeifer, wrote: Having spent a bit more time with GCC sources (as opposed to wwwdocs) recently and looking for prior art to guide me, I noticed there's a lot of options to specific the ChangeLog file(

Re: ftpmirror.gnu.org mirrors failing

On Wed, 30 Dec 2020, 21:20 Insurgo via Gcc, wrote: > Hello there, > > Since a couple of days, it seems that http://ftpmirror.gnu.org/ randomly > points to non-functional mirrors to download coreboot relative packages > in CI builds. > Those is the mailing list for the GC

A problem with field decl offsets in newly minted types

I'm having some grief with creating/using some modified types. I problem occurs in tree-ssa-sccvn.c when some code tries to take a DECL_FIELD_OFFSET and unfortuenately gets a null that causes a crash. So, I traced this back the to types I created. Note, the method I used has seemed to be fairly r

Can you GCC folks provide a macro to learn the code knows the name of input-charset, exec-charset and wide-exec-charset?

I desperately need to know exec-charset to do the correct codecvt. Macros like __GNU_INPUT_CHARSET, __GNU_EXEC_CHARSET and __GNU_WIDE_EXEC_CHARSET would be great Sent from Mail for Windows 10

Re: C++11 code in the gcc 10 branch

nd SVN times. > > I also wanted to ask approval to commit this diff below, fixing > aarch64_get_extension_string_for_isa_flags()’s prototype to align it with the > actual function definition: > > diff --git a/gcc/config/aarch64/driver-aarch64.c > b/gcc/config/aarch64/driver-aarch6

Re: A problem with field decl offsets in newly minted types

ation optimization, this is occurring with the Mcf sources from SPEC17. From: Gary Oblock Sent: Wednesday, December 30, 2020 11:00 PM To: gcc@gcc.gnu.org Subject: A problem with field decl offsets in newly minted types I'm having some grief with creating/using som

Time to update all licenses in code to 2021

Update copyright years. · gcc-mirror/gcc@8d9254f (github.com)<https://github.com/gcc-mirror/gcc/commit/8d9254fc8aa32619f640efb01cfe87cc6cdc9ce1> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

Security vulnerabilities affects core API authorization of gnu.org

Hi Janus, How can I report some high impact security vulnerabilities that I have found on gnu.org web app? Also, does gnu.org has a bug bounty program or reporting bugs reward policy? The vulnerabilities that I have found affects the core API of gnu.org which allows unauthorized users to get acc

Copyright assignment for Rust-GCC

Hi Folks! This mail is about the development of Rust frontend of GCC. To avoid misunderstanding, please let me introduce Rust-GCC briefly. In 2013, Philip Herron had announced the project in GCC mailing-list: https://gcc.gnu.org/legacy-ml/gcc/2013-12/msg00017.html In 2019, @SimplyTheOther had

Re: What is the type of vector signed + vector unsigned?

On Tue, Dec 29, 2020 at 8:19 PM Alexander Monakov wrote: > > On Tue, 29 Dec 2020, Richard Biener via Gcc wrote: > > > >I think clang follows gcc and uses the type of the first operand. > > > > The desired behavior is the one that OpenCL specifies. If it is >

Re: A problem with field decl offsets in newly minted types

On Fri, Jan 1, 2021 at 10:16 PM Gary Oblock via Gcc wrote: > > The offsets seem to actually be created. However, > they are almost immediately are being deleted. Use a watchpoint to see where. > Any ideas what's going on? Has some kind > of memory management gizmo gone awry?

Re: Copyright assignment for Rust-GCC

On 1/4/21 3:28 AM, Nala Ginrut via Gcc wrote: > Hi Folks! > This mail is about the development of Rust frontend of GCC. > > To avoid misunderstanding, please let me introduce Rust-GCC briefly. > In 2013, Philip Herron had announced the project in GCC mailing-list: > https://

Re: Security vulnerabilities affects core API authorization of gnu.org

On 1/4/21 3:23 AM, Salah Mosbah via Gcc wrote: > Hi Janus, > > How can I report some high impact security vulnerabilities that I have > found on gnu.org > web app? > > Also, does gnu.org has a bug bounty program or reporting bugs reward policy? > > The vulnerabilitie

Re: Copyright assignment for Rust-GCC

On Mon, Jan 4, 2021 at 5:29 AM Nala Ginrut via Gcc wrote: > > Hi Folks! > This mail is about the development of Rust frontend of GCC. > > To avoid misunderstanding, please let me introduce Rust-GCC briefly. > In 2013, Philip Herron had announced the project in GCC mai

[no subject]

gengtype and automatically generated files

added to target_gtfiles in config.gcc.  However, I can't come up with a syntax for describing a file in the gcc/ build subdirectory.  Some places in config.gcc allow "./filename" as shorthand for "filename" being in the current build directory, but that doesn'

Re: Security vulnerabilities affects core API authorization of gnu.org

Hi Jeff, Does gnu.org has a bug bounty program or reporting bugs reward policy? On Mon, Jan 4, 2021 at 6:06 PM Jeff Law wrote: > > > On 1/4/21 3:23 AM, Salah Mosbah via Gcc wrote: > > Hi Janus, > > > > How can I report some high impact security vulnerabilities that

Re: Security vulnerabilities affects core API authorization of gnu.org

On 1/4/21 10:40 AM, Salah Mosbah wrote: > Hi Jeff, > > Does gnu.org  has a bug bounty program or reporting > bugs reward policy? I have no idea. jeff >

Re: gengtype and automatically generated files

On 1/4/21 10:40 AM, Bill Schmidt via Gcc wrote: > Hi!  I'm attempting to do something that may not have been done > before, so I'm looking for advice, or a pointer to where, in fact, it > has been done before. :) > > I'm automatically generating a back-end

Re: gengtype and automatically generated files

but I also need to teach the garbage collector that this file exists. Most back-end files are automatically scanned by gengtype.  Per the documentation, anything that isn't handled automatically needs to be added to target_gtfiles in config.gcc.  However, I can't come up with a syntax

Re: Copyright assignment for Rust-GCC

On Mon, Jan 4, 2021 at 11:13 AM David Edelsohn via Gcc wrote: > On Mon, Jan 4, 2021 at 5:29 AM Nala Ginrut via Gcc > wrote: > > > > Hi Folks! > > This mail is about the development of Rust frontend of GCC. > > > > To avoid misunderstanding, please let me int

Query about compatibility

Does M1 MacBooks support GCC compilers ,if not will M1 MacBooks ever get compatibility of GCC compilers

Re: Query about compatibility

Chirumamilla Ganesh via Gcc wrote: Does M1 MacBooks support GCC compilers ,if not will M1 MacBooks ever get compatibility of GCC compilers See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96168 and https://github.com/iains/gcc-darwin-arm64 This is experimental at present, support for macOS

Fwd: git commit hook does not record my patches to PRs

Sorry for spamming gcc-patches@ ML, this message should go to gcc@. -- Forwarded message - From: Uros Bizjak Date: Tue, Jan 5, 2021 at 3:04 PM Subject: git commit hook does not record my patches to PRs To: gcc-patc...@gcc.gnu.org Cc: Martin Liska Hello! For some reason git

Re: Copyright assignment for Rust-GCC

On 1/4/21 11:01 PM, Eric Gallager via Gcc wrote: > On Mon, Jan 4, 2021 at 11:13 AM David Edelsohn via Gcc > wrote: > >> On Mon, Jan 4, 2021 at 5:29 AM Nala Ginrut via Gcc >> wrote: >>> Hi Folks! >>> This mail is about the development of Rust frontend of

Re: Copyright assignment for Rust-GCC

On Tue, Jan 5, 2021 at 10:48 AM Jeff Law wrote: > > On 1/4/21 11:01 PM, Eric Gallager via Gcc wrote: > > On Mon, Jan 4, 2021 at 11:13 AM David Edelsohn via Gcc > > wrote: > > > >> On Mon, Jan 4, 2021 at 5:29 AM Nala Ginrut via Gcc > >> wrote: &g

Re: Copyright assignment for Rust-GCC

Thanks for all the replies, I've contacted ass...@gnu.org but no reply for 2 days. Should I get the form from GCC folks? Best regards. Eric Gallager writes: > On Mon, Jan 4, 2021 at 11:13 AM David Edelsohn via Gcc > wrote: > >> On Mon, Jan 4, 2021 at 5:29 AM Nala Ginr

Re: Copyright assignment for Rust-GCC

transfer your information to the form and send it. It isn't a click-through CLA. Thanks, David On Tue, Jan 5, 2021 at 11:25 AM Nala Ginrut wrote: > > > Thanks for all the replies, I've contacted ass...@gnu.org but no reply > for 2 days. > Should I get the form from GC

Re: Google GSOC Idea

I wanted to talk about a gcc front-end with the syntax js / ts, which is ahead-of-time. The standard library will also contain basic functions that will enable the use of several basic frameworks that can be used in standard output. It was an e-mail that I could not fully explain because I tried

Re: Google GSOC Idea

Are you trying to propose a JavaScript / TypeScript front-end and associated runtime for GCC? I don't believe that anyone would object to that. It probably is much too ambitious for a GSoC project. You could propose a subset as a GSoC project. It's unclear if you already have a p

Re: Google GSOC Idea

ciated runtime for GCC? > > I don't believe that anyone would object to that. It probably is much > too ambitious for a GSoC project. You could propose a subset as a > GSoC project. > > It's unclear if you already have a preliminary implementation and want > to increm

Re: gengtype and automatically generated files

On 1/4/21 1:36 PM, Jeff Law wrote: On 1/4/21 10:40 AM, Bill Schmidt via Gcc wrote: Hi!  I'm attempting to do something that may not have been done before, so I'm looking for advice, or a pointer to where, in fact, it has been done before. :) I'm automatically generating a

Fwd: 50 % off Hair extensions

[no subject]

Trying to get hold Mike need 1hour every day

[RFC] restricting aliasing by standard containers (PR 98465)

d due to a missing aliasing constraint: because GCC doesn't know that the member pointer to the memory managed by the container cannot alias other objects, it emits code that can never be executed in a valid program and that's prone to causing false positives. To illustrate, at

Copyright Forms Request

Hello, Hope all is well. Please could I have a copy of the form to assign copyright of all future changes. Kind regards, Anthony Sharp

Re: Copyright Forms Request

Sent privately. - David On Thu, Jan 7, 2021 at 8:08 PM Anthony Sharp via Gcc wrote: > > Hello, > > Hope all is well. Please could I have a copy of the form to assign > copyright of all future changes. > > Kind regards, > Anthony Sharp

Re: Copyright Forms Request

Thank you! Anthony On Fri, 8 Jan 2021 at 01:14, David Edelsohn wrote: > > Sent privately. > > - David > > On Thu, Jan 7, 2021 at 8:08 PM Anthony Sharp via Gcc wrote: > > > > Hello, > > > > Hope all is well. Please could I have a copy of the form to

Re: Add -fdirect-access-external-data

org/bugzilla/show_bug.cgi?id=98112 which > > > > proposes -fdirect-access-external-data to address some x86-64 > > > > GCC/binutils pain[1] and also benefit non-x86 architectures (also see > > > > [1] > > > > it can prevent copy relocations). > >

Re: Add -fdirect-access-external-data

gt; > > On Sat, Dec 26, 2020 at 7:32 AM Florian Weimer > > > > wrote: > > > > > > > > > > * Fangrui Song: > > > > > > > > > > > Hi, I filed https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98112 which > > > &

Re: [RFC] restricting aliasing by standard containers (PR 98465)

emory) might trigger warnings for unreachable code. > The code is not eliminated due to a missing aliasing constraint: > because GCC doesn't know that the member pointer to the memory > managed by the container cannot alias other objects, it emits code > that can never be executed i

Re: Fw: Problems with compiling autogen with GCC8 or newer versions

maximum of MAXNAMELEN+1 (also provable), meaning that at a minimum there are MAXNAMELEN+6 bytes left in the buffer. That objected-to sprintf can add a maximum of MAXNAMELEN + 4 to where "def_str" points. GCC is wrong. It is unable to figure out how far into the buffer "def_str" c

Re: Fw: Problems with compiling autogen with GCC8 or newer versions

On 1/8/21 10:39 AM, Bruce Korb via Gcc wrote: > Hi, > > You are supposed to be able to post once you've subscribed. > > Also, GCC's code analysis is wrong. "name_bf" contains *NO MORE* than > MAXNAMELEN characters. That is provable. > > "def_s

Re: [RFC] restricting aliasing by standard containers (PR 98465)

s and manages allocated memory) might trigger warnings for unreachable code. The code is not eliminated due to a missing aliasing constraint: because GCC doesn't know that the member pointer to the memory managed by the container cannot alias other objects, it emits code that can never be executed

Adjust offset of array reference in named address space

Hi, I'm implementing named addresses spaces for a Harvard architecture machine to support copying data from instruction memory to data memory. This is achieved via a special instruction. e.g. think AVR and progmem/__flash. However, the instruction memory is narrower than the data memory (12 vs 16

Re: Fw: Problems with compiling autogen with GCC8 or newer versions

On 1/8/21 12:38 PM, Bruce Korb via Gcc wrote:    $ bash cc.sh    + wrn+=' -Werror=format-overflow'    + gcc -DHAVE_CONFIG_H -I. -I.. -I../autoopts    -Wno-format-contains-nul -Wall -Werror -Wcast-align    -Wmissing-prototypes -Wpointer-arith -Wshadow -Wstrict-prototypes    -Wwri

Re: Fw: Problems with compiling autogen with GCC8 or newer versions

Hi Martin, On 1/10/21 11:01 AM, Martin Sebor wrote: On 1/8/21 12:38 PM, Bruce Korb via Gcc wrote: This is the code that must be confusing to GCC. "def_str" points to the second character in the 520 byte buffer. "def_scan" points to a character that we already know we'

Re: Fw: Problems with compiling autogen with GCC8 or newer versions

On 1/10/21 12:28 PM, Bruce Korb wrote: Hi Martin, On 1/10/21 11:01 AM, Martin Sebor wrote: On 1/8/21 12:38 PM, Bruce Korb via Gcc wrote: This is the code that must be confusing to GCC. "def_str" points to the second character in the 520 byte buffer. "def_scan" points to

Re: Fw: Problems with compiling autogen with GCC8 or newer versions

Hi, On 1/10/21 3:56 PM, Martin Sebor wrote: Sure.  I was confirming that based on the GCC dump there is no risk of an overflow in the translation unit, and so there is no warning. OK. :) I didn't understand the GCC dump. Despite having commit privs, I'm not actually a compiler g

Re: [RFC] restricting aliasing by standard containers (PR 98465)

., PR 93971) where a standard container (std::string in > >> this case but the problem applies to any class that owns and manages > >> allocated memory) might trigger warnings for unreachable code. > >> The code is not eliminated due to a missing aliasing constraint: > >

Re: Adjust offset of array reference in named address space

On Sat, Jan 9, 2021 at 12:24 AM Tucker Kern via Gcc wrote: > > Hi, > > I'm implementing named addresses spaces for a Harvard architecture machine > to support copying data from instruction memory to data memory. This is > achieved via a special instruction. e.g. think

Re: GCC GSoC 2021: Call for project ideas and mentors

On Mon, Jan 11, 2021 at 4:09 PM Martin Jambor wrote: > > Hello, > > there have already been some inquiries from prospective students and so > I would like to start preparing for the next year of Google Summer of > Code now. I'll be happy to volunteer to be the main Org Adm

Re: Adjust offset of array reference in named address space

space. This doesn't feel like a far fetched idea as GCC currently supports address space specific legitimization and modes. On Mon, Jan 11, 2021 at 12:50 AM Richard Biener wrote: > On Sat, Jan 9, 2021 at 12:24 AM Tucker Kern via Gcc > wrote: > > > > Hi, > >

Re: Adjust offset of array reference in named address space

eans to augment how addresses (e.g. > array offsets or struct members) are calculated in a non-generic address > space. This doesn't feel like a far fetched idea as GCC currently supports > address space specific legitimization and modes. I think you'd need to hook this up

Re: gccadmin hooks: make it a public git repo

Makes sense to me. On Thu, 7 Jan 2021 at 10:42, Martin Liška wrote: > > Adding GCC ML. > > On 1/7/21 11:41 AM, Martin Liška wrote: > > Hello. > > > > Time to time, I'm debugging git server hooks with Jakub and I'm always > > struggling >

Re: Copyright assignment paperwork request

Sent off-list. - David On Wed, Jan 13, 2021 at 11:43 AM Harris Snyder wrote: > > Hi, > > I would like to start contributing to GCC. As such, from my > understanding, I need to file some paperwork related to copyright > assignment. If there is a set of paperwork that woul

RFC: Add GNU_PROPERTY_UINT32_AND_XXX/GNU_PROPERTY_UINT32_OR_XXX

1. GNU_PROPERTY_UINT32_AND_LO..GNU_PROPERTY_UINT32_AND_HI #define GNU_PROPERTY_UINT32_AND_LO 0xb000 #define GNU_PROPERTY_UINT32_AND_HI 0xb0007fff A bit in the output pr_data field is set only if it is set in all relocatable input pr_data fields. If all bits in the the output pr_data field

gcc can't process some utf-8 characters

I use "gcc -finput-charset=utf-8 -fexec-charset=gb2312" to compile utf-8 encoding source files under windows. Most of the time it works well, but when the source file contains some characters such as "—", gcc will fail and the error message is: "[Error] converting t

Re: gcc can't process some utf-8 characters

在 2021/1/14 上午9:47, Roy Qu via Gcc 写道: > I use "gcc -finput-charset=utf-8 -fexec-charset=gb2312" to compile utf-8 > encoding source files under windows. Most of the time it works well, but > when the source file contains some characters such as "—", gcc will fa

Re: Adjust offset of array reference in named address space

splitters defined that emit > the correct instructions to read and "pack" the value into a register or > generic memory location. > > > > All I really need at this point is a means to augment how addresses > (e.g. array offsets or struct members) are calculated in a n

GCC GSoC 2021 - Static analyzer project

Hello, I came across the list of possible project ideas for GSoC 2021 and I'd like to contribute to the project regarding the static analysis pass in GCC. How can I get started with this project? Thanks, Adharsh

Re: nios2 -mcustom-round vs. libatomic

ror: switch '-mcustom-round' has no effect unless > > '-fno-math-errno' is specified [-Werror] > > > > I am not sure how to fix this. > Is a compiler warning the right diagnostic for an inconsistent use of > compiler options? This warning is not related to code processed by GCC. > But the options are part of the input provided by the user. I think a warning is appropriate (and I'm not sure what other sensible options there are anyway).

Re: Erroneous results from gfortran

Hello Professor, Shahrooz, Bahram (shahrobm) via Gcc wrote: I’ve used gfortran to compile a program on Mac Big Sur using gcc-10.2 and on Windows 10 using g77. I’ve used -o0 for both cases. The results for identical input values are vastly different between the two executables and

RE: [RFC] A memory gathering optimization for loop

> -Original Message- > From: Feng Xue OS > Sent: Thursday, January 14, 2021 12:28 PM > To: gcc@gcc.gnu.org > Cc: JiangNing OS ; Hao Liu OS > > Subject: [RFC] A memory gathering optimization for loop > > 1. Background > > In a loop, it is optimal if on

RE: [RFC] A memory gathering optimization for loop

On January 17, 2021 2:23:55 AM GMT+01:00, JiangNing OS via Gcc wrote: >> -Original Message- >> From: Feng Xue OS >> Sent: Thursday, January 14, 2021 12:28 PM >> To: gcc@gcc.gnu.org >> Cc: JiangNing OS ; Hao Liu OS >> >> Subject: [RFC] A memor

Building gcc for C and C++ with a custom glibc

Hi all.  I've been trying to build a custom gcc (trunk) with a custom glibc (trunk) with support for C and C++ on x86_64 Linux and have so far been unsuccessful at identifying a sequence of configure/make invocations that completes successfully.  I'm not trying to build a cross compi

Re: Building gcc for C and C++ with a custom glibc

On Sun, Jan 17, 2021 at 1:06 PM Tom Honermann via Gcc wrote: > > Hi all. I've been trying to build a custom gcc (trunk) with a custom > glibc (trunk) with support for C and C++ on x86_64 Linux and have so far > been unsuccessful at identifying a sequence of configure/make &

Re: GCC GSoC 2021 - Static analyzer project

On Thu, 2021-01-14 at 10:45 +0530, Adharsh Kamath wrote: > Hello, > I came across the list of possible project ideas for GSoC 2021 and > I'd > like to contribute to the project regarding the static analysis pass > in GCC. > How can I get started with this project? Hi A

Is that possible to implement deterministic exception easily?

I guess adding calling convention for new C++ deterministic exception option is hard and that requires changes among front-end, middle-end and back-end altogether. However, I desperately need that feature since current C++ exceptions are totally unusable. void f() throws {} The failure bit wi

SanitizerCoverage support

Greetings, can you tell me if support of SanitizerCoverage is planned for gcc in the foreseeable future? Regards

Re: SanitizerCoverage support

Excellent! Since which version is this available? From: Martin Liška Sent: Tuesday, January 19, 2021 10:23 AM To: Roger Phillips ; gcc@gcc.gnu.org Subject: Re: SanitizerCoverage support On 1/19/21 10:07 AM, Roger Phillips via Gcc wrote: > Greetings, > >

Re: SanitizerCoverage support

nough. From: Martin Liška Sent: Tuesday, January 19, 2021 10:40 AM To: Roger Phillips ; gcc@gcc.gnu.org Subject: Re: SanitizerCoverage support On 1/19/21 11:33 AM, Roger Phillips wrote: > Excellent! Since which version is this available? Hello. The option -fsanitize-coverage=trace-pc is a

Should GCC provide __builtin_memcpy_inline like clang does?

I think __builtin_memmove_inline, __builtin_memset_inline can also get provided. That allows better performance for small size copies and allowing memcpy to be usable without libc. Sent from Mail for Windows 10

Re: SanitizerCoverage support

for sancov. Regards From: Martin Liška Sent: Tuesday, January 19, 2021 10:23 AM To: Roger Phillips ; gcc@gcc.gnu.org Subject: Re: SanitizerCoverage support On 1/19/21 10:07 AM, Roger Phillips via Gcc wrote: > Greetings, > > can you tell me if support of SanitizerCover

RE: Should GCC provide __builtin_memcpy_inline like clang does?

shing.org> Sent: Tuesday, January 19, 2021 13:52 To: unlvsur unlvsur<mailto:unlv...@live.com> Cc: gcc@gcc.gnu.org<mailto:gcc@gcc.gnu.org>; gcc-h...@gcc.gnu.org<mailto:gcc-h...@gcc.gnu.org> Subject: Re: Should GCC provide __builtin_memcpy_inline like clang does? On Tue, Jan 19, 202

Re: Should GCC provide __builtin_memcpy_inline like clang does?

On 1/19/21 12:33 PM, unlvsur unlvsur via Gcc wrote: I think __builtin_memmove_inline, __builtin_memset_inline can also get provided. That allows better performance for small size copies Manual tweaking like that seems a bit ridiculous except in very narrow situations, and just letting GCC

Re: Should GCC provide __builtin_memcpy_inline like clang does?

On Tue, Jan 19, 2021 at 6:44 PM Gabriel Ravier via Gcc wrote: > > On 1/19/21 12:33 PM, unlvsur unlvsur via Gcc wrote: > > I think __builtin_memmove_inline, __builtin_memset_inline can also get > > provided. > > > > That allows better performance for small size copies

Re: Should GCC provide __builtin_memcpy_inline like clang does?

On Tue, Jan 19, 2021 at 9:04 PM unlvsur unlvsur via Gcc wrote: > > That is not for inline. That is to allow implementing memcpy without > introducing any libc runtime which allows us to use it in freestanding > environment. Note that GCC requires memcpy, memmove, memset and mem

Re: SanitizerCoverage support

Would it be possible to replicate the sancov functionality on gcc just through special trace functions? From: Martin Liška Sent: Wednesday, January 20, 2021 11:40 AM To: Roger Phillips ; gcc@gcc.gnu.org Cc: weixi@antfin.com Subject: Re: SanitizerCoverage

Re: Turning off SRA

On Thu, Jan 21, 2021 at 3:31 PM Alan Lehotsky wrote: > > I’m working on performance tuning a gcc 8.3 port and wanted to turn off SRA > for an experiment. But passing both > > -fno-tree-sra > -fno-ipa-sra > > but it’s still tagging compiled functions with a “_i

Re: RFC: Add GNU_PROPERTY_UINT32_AND_XXX/GNU_PROPERTY_UINT32_OR_XXX

On Wed, Jan 13, 2021 at 9:06 AM H.J. Lu wrote: > > 1. GNU_PROPERTY_UINT32_AND_LO..GNU_PROPERTY_UINT32_AND_HI > > #define GNU_PROPERTY_UINT32_AND_LO 0xb000 > #define GNU_PROPERTY_UINT32_AND_HI 0xb0007fff > > A bit in the output pr_data field is set only if it is set in all > relocatable input

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