Ask HN: List of (open source) C compilers

Over the years I found quite some interesting C compiler projects here on HN, sometimes introduced as its on thread, sometimes buried as a simple link deep down in some comments. Here and there I bookmarked them, but certainly not all.

It would be cool if we had one single page where all the wonderful compiler projects are collected, so my question is: can we somehow compile/assemble/put together a list of C compilers in this thread in the form of

  *) Name of the project
  *) Link to homepage/sourcecode
  *) programming language used for the compiler
  *) compiles to … (x86 binary, asm-text, etc…)
  *) whatever else might be interesting 

Tiny compilers / unfinished projects / educational projects / subsets of C / etc… are also very welcome.