Object-oriented modelling and code migration between languages. [Open Source, GPL]

CCured is a source-to-source translator for C. It analyzes the C program to determine the smallest number of run-time checks that must be inserted in the program to prevent all memory safety violations. The resulting program is memory safe, meaning that it will stop rather than overrun a buffer or scribble over memory that it shouldn't touch.

CMI is an optimizing frontend for gcc which allows gcc to inline across module boundaries without requiring you to put inline functions in header files or even mark inline functions for inlining.

Generalized compiler technology for custom parsing, analyzing, transforming, and prettyprinting computer languages, including C, C++, COBOL, Ada, Java, C#, SQL. Tasks range from metrics to migrations. [Commercial]

Spoon is a Java program processor that fully supports Java 5. It provides a complete and fine-grained Java metamodel where any program element (classes, methods, fields, statements, expressions...) can be accessed both for reading and modification.

A modular language for the specificat ion of fully automatic program transformation systems based on the paradigm of rewriting strategies. Free software.

Rule-based structural transformation is utilized as a paradigm for rapid generation of complex programs.

Compiler architecture dynamically optimizes stand-alone programs via staged compiling. Uses run-time values and invariants to improve code as it executes, yielding performance superior to statically optimal code.

A Pattern matching transformation system.

An "integrated compilation and performance monitoring infrastructure", facilitating compiler-optimization research and involves a collaborative effort by Hewlett Packard, University of Illinois and New York University.