Experts work to aid compiler behind open source GCC is used to produce most programs in the open-source movement, so a little improvement or degradation can propagate widely.

A senior Google database expert loves the JIT compiler, but others doubt its worth and say it could be hard to maintain.

Programmers release version 3.0 of GCC, a software project not as well-known as open-source projects such as Linux but one that's key to all of them.