Open64
Open64 is an open source, optimizing compiler for the Itanium and x86-64 microprocessor architectures. It supports Fortran 77/95 and C/C++, as well as the shared memory programming model OpenMP.
LLVM
LLVM is a compiler infrastructure designed for compile-time, link-time, run-time, and "idle-time" optimization of programs wri ...
GNU Compiler Collection
The GNU Compiler Collection (GCC) is a compiler system produced by the GNU Project supporting various programming languages. G ...
clang
C, C++, Objective C and Objective C++ front-end for the LLVM compiler.
Portable C Compiler
pcc is a C99 compiler which aims to be small, simple, fast and understandable.