ghc

Compiler for the functional language Haskell

The Glasgow Haskell Compiler is a state-of-the-art, open source, compiler and interactive environment for the functional language Haskell. Highlights: * Supports the entire Haskell 2010 language plus a wide variety of extensions. * Has particularly good support for concurrency and parallelism, including support for Software Transactional Memory (STM). * Generates fast code, particularly for concurrent programs. * Works on several platforms including FreeBSD, Windows, Mac, Linux, most varieties of Unix, and several different processor architectures. * Has extensive optimisation capabilities, including inter-module optimisation. * Compiles Haskell code either directly to native code or using LLVM as a back-end. It can also generate C code as an intermediate target for porting to new platforms. The interactive environment compiles Haskell to bytecode, and supports execution of mixed bytecode/compiled programs. * Profiling is supported, both by time/allocation and various kinds of heap profiling. * Comes with several libraries, and thousands more are available on Hackage.