UNSUBSCRIBE On Fri, 6 May 2022, 14:57 Richard Biener via gcc-announce, < gcc-annou...@gcc.gnu.org> wrote:
> > The GCC developers are proud to announce another major GCC release, 12.1. > > This year we celebrated the 35th anniversary of the first GCC beta release > and this month we will celebrate 35 years since the GCC 1.0 release! > > This release deprecates support for the STABS debugging format and > introduces support for the CTF debugging format [1]. The C and C++ > frontends continue to advance with extending support for features > in the upcoming C2X and C++23 standards and the C++ standard library > improves support for the experimental C++20 and C++23 parts. > The Fortran frontend now fully supports TS 29113 for interoperability with > C. > > GCC now understands clangs __builtin_shufflevector extension making > it easier to share generic vector code. Starting with GCC 12 > vectorization is enabled at the -O2 optimization level using the > very-cheap cost model which puts extra constraints on code size expansion. > > On the security side GCC can now initialize stack variables implicitly > using -ftrivial-auto-var-init to help tracking down and mitigating > uninitialized stack variable flaws. The C and C++ frontends now support > __builtin_dynamic_object_size compatible with the clang extension. > The x86 backend gained mitigations against straight line speculation > with -mharden-sls. The experimental Static Analyzer gained uninitialized > variable use detection and many other improvements. > > The x86 backend gained support for AVX512-FP16 via _Float16. > The BPF backend now supports CO-RE, the RISC-V backend gained support > for many new ISA extensions. > > Some code that compiled successfully with older GCC versions might require > source changes, see http://gcc.gnu.org/gcc-12/porting_to.html for > details. > > See > > https://gcc.gnu.org/gcc-12/changes.html > > for more information about changes in GCC 12.1. > > This release is available from the WWW and FTP servers listed here: > > https://sourceware.org/pub/gcc/releases/gcc-12.1.0/ > https://gcc.gnu.org/mirrors.html > > The release is in the gcc-12.1.0/ subdirectory. > > If you encounter difficulties using GCC 12.1, please do not contact me > directly. Instead, please visit http://gcc.gnu.org for information about > getting help. > > Driving a leading free software project such as GCC would not be possible > without support from its many contributors. > Not only its developers, but especially its regular testers and users which > contribute to its high quality. The list of individuals > is too large to thank individually! > > ---- > > [1] See https://ctfstd.org/ >
