GCC 4.9 Stacks Up ADA, Fortran Changes
Written by Michael Larabel in Compiler on 29 August 2013 at 11:17 AM EDT. 1 Comment
GCC 4.9 isn't anticipated for release until H1'2014, but it's already been stacking up changes for several months. We have covered some of the new GCC 4.9 work already on Phoronix for this open-source compiler, but here's an overview of some of the other changes.

Among the changes covered so far for the GCC 4.9 compiler, which will compete with the LLVM/Clang 3.4 compiler due out at the end of this year, includes:

- Colored diagnostics support.

- Continued support for recent CPUs and their new instruction set extensions, including Intel "Core-AVX2" Haswell.

- Better support for C++14, the next evolutionary standard to the C++ programming language.

- Intel Silvermont CPU support.

Some other GNU Compiler Collection 4.9 improvements that have already been merged into their SVN code-base but not yet covered on Phoronix includes:

- The GNAT ADA compiler that is part of GCC will now default to the ADA 2012 language. Up to now the ADA 2005 standard has been the default, but GCC 4.9 will up it to the latest 2012 specification. ADA 2012 presents improved concurrency / multi-core support, container enhancements, increased expressiveness, and other new features.

- Support for Solaris 9 has been obsoleted.

- AddressSanitizer is supported by the ARM target in GCC 4.9. AddressSanitizer was ported from LLVM in GCC 4.8 for x86 architectures and with this new release it will work for GCC on ARM hardware.

- The GCC Fortran compiler now supports "Finalization" from the Fortran 2003 language and there's also changes for Fortran 2008. Various other Fortran compiler changes are also present.

More details on the current GCC 4.9 changes are outlined in the online documentation at gcc.gnu.org.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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