PathScale 4.0.12.1 is a compiler. The PathScale 4.0.12.1 has been tested via the Phoronix Test Suite in the configurations listed below.
PathScale EKOPath 5.0 Beta Compiler Performance: Going on two years ago PathScale open-sourced their EKOPath 4 Compiler Suite. This Fortran/C/C++ compiler suite hasn't seen widespread adoption since then outside of some scientific circles and other select high-performance areas, but PathScale hasn't stalled in advancing their compiler software that is also still available commercially.
PathScale Open-Sources The EKOPath 4 Compiler Suite: Within the free software world, GCC has long been the dominant compiler with it being backed by the Free Software Foundation, it being the most well developed free compiler suite, and is a feature rich offering that is put out under the GNU GPLv3. As of late, LLVM has also been hitting the nail on the head.
PathScale Gives FreeBSD, NetBSD A New C++ Runtime: PathScale, the compiler company that is behind the high-performance 64-bit EKOPath compiler suite and GPGPU computing solutions, has granted the FreeBSD and NetBSD foundations a copy of their libcxxrt C++ runtime. Libcxxrt provides a C++ ABI for Itanium and x86 architectures for BSD.