GCC 5.1 发布，C/C++ 编译器

GCC 5.1 发布，此版本包括大量新特性及 Bug 修复：

一般优化改进：

• Inter-procedural optimization improvements

• Link-time optimization improvements

• Feedback directed optimization improvements

• Register allocation improvements

• UndefinedBehaviorSanitizer gained a few new sanitization options

• Pointer Bounds Checker, a bounds violation detector, has been added and can be enabled via -fcheck-pointer-bounds. Memory accesses are instrumented with run-time checks of used pointers against their bounds to detect pointer bounds violations (overflows). The Pointer Bounds Checker is available on x86/x86-64 GNU/Linux targets with a new ISA extension Intel MPX support. See the Pointer Bounds Checker Wiki page for more details.

新语言及语言具体改进：

• OpenMP 4.0 specification offloading features are now supported by the C, C++, and Fortran compilers. Generic changes:
       Infrastructure (suitable for any vendor).
       Testsuite which covers offloading from the OpenMP 4.0 Examples document.

• Specific for upcoming Intel Xeon Phi products:
       Run-time library.
       Card emulator.

• GCC 5 includes a preliminary implementation of the OpenACC 2.0a specification. OpenACC is intended for programming accelerator devices such as GPUs. See the OpenACC wiki page for more information.

详细信息请查看发行页面。

此版本现已提供下载：
http://ftp.gnu.org/gnu/gcc/gcc-5.1.0/

GCC（GNU Compiler Collection，GNU编译器套装），是一套由 GNU 开发的编程语言编译器。它是一套以 GPL 及 LGPL 许可证所发行的自由软件，也是 GNU计划 的关键部分，亦是自由的 类Unix 及苹果计算机 Mac OS X 操作系统的标准编译器。GCC（特别是其中的C语言编译器）也常被认为是跨平台编译器的事实标准。

GCC 原名为 GNU C 语言编译器（GNU C Compiler），因为它原本只能处理 C语言。GCC 很快地扩展，变得可处理 C++。之后也变得可处理 Fortran、Pascal、Objective-C、Java, 以及 Ada 与其他语言。