Description:

GHC is a state-of-the-art, open source, compiler and interactive environment
for the functional language Haskell. Highlights:

- GHC supports the entire Haskell 2010 language plus various extensions.
- GHC has particularly good support for concurrency and parallelism,
including support for Software Transactional Memory (STM).
- GHC generates fast code, particularly for concurrent programs
(check the results on the "Computer Language Benchmarks Game").
- GHC works on several platforms including Windows, Mac, Linux,
most varieties of Unix, and several different processor architectures.
- GHC has extensive optimisation capabilities,
including inter-module optimisation.
- GHC compiles Haskell code either directly to native code or using LLVM
as a back-end. GHC 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 heap profiling.
- GHC comes with core libraries, and thousands more are available on Hackage.