.class code optimization

Fri Oct 11 12:08:00 GMT 2002

On 11 Oct 2002, Tom Tromey wrote:
> It is probably easier to write a new tool that optimizes the .class
> files directly than it would be to teach gcj how to do optimizations
> before generating .class files.

Someone already mentioned javago.
ISTR that Sun's javac once performed optimizations, including inlining
across translation units. There were problems with it, like unverifiable
bytecode: class A inlines method B.b(), but B.b() accesses fields private
to B, etc.
At some point (1.2?) javac's -O flag became a no-op.
Jeff