LLVM

LLVM is an abbreviation of "Low Level Virtual Machine"; LLVM is:

• A compilation strategy
• A virtual instruction set
• A compiler infrastructure

It is developed by the University of Illinois. It is implemented on many platforms, amongst others the iPhone.

You can use this from a Haskell program using the Haskell package llvm. There is

• a cabal package at Hackage,
• a darcs repository,
• a mailing list,
• a blog article with examples,
• the article "A performance update" that describes, how LLVM can improve performance

Additional stuff

• llvm-extra provides high-level control structures (ifThenElse, whileLoop, Maybe), vector instructions, automatic adaption to target specific extensions

Applications

• synthesizer-llvm provides efficient signal processing using vector instructions, including a realtime software synthesizer