GCC 5.1 Released

kthreadd writes: Version 5.1 of GCC, the primary free software compiler for GNU and other operating systems, has been released. Version 5 includes many changes from the 4.x series. Starting with this release the default compiler mode for C is gnu11 instead of the older gnu89. New features include new compiler warnings, support for Cilk Plus. There is a new attribute no_reorder which prevents reordering of selected symbols against other such symbols or inline assembler, enabling link-time optimization of the Linux kernel without having to use -fno-toplevel-reorder. Two new preprocessor directives have also been added, __has_include and __has_include_next, to test the availability of headers. Also, there's a new C++ ABI due to changes to libstdc++. The old ABI is however still supported and can be enabled using a macro. Other changes include full support for C++14. Also the Fortran frontend has received some improvements and users will now be able to have colorized diagnostics, and the Go frontend has been updated to the Go 1.4.2 release.

Comments

What is no_reorder, anyways?

[Anonymous Coward]

It is explained well here: http://www.spinics.net/lists/linux-kbuild/msg11056.html

Re:No disrespect to GCC, but why not LLVM?

[HuguesT]

Missing features maybe. Like OpenMP, which is not there yet. LLVM and GCC feed off each other. Some competition is good.