This isn't specific to D but does anyone know of a compiler or language that optimizes based on profiler output? In other words you run the program a few times through typical usage and collect profiler data and then recompile with that profiler data in order to do more optimizations (or less...). I'm curious how effective it is instead of a JIT, for example.

In article <dfv1c0$2cqa$1@digitaldaemon.com>, Ben Hinkle says...
>
>This isn't specific to D but does anyone know of a compiler or language that optimizes based on profiler output? In other words you run the program a few times through typical usage and collect profiler data and then recompile with that profiler data in order to do more optimizations (or less...). I'm curious how effective it is instead of a JIT, for example.

The Sun compiler does.  There's an article about it here:

http://developers.sun.com/prodtech/cc/articles/codelayout.html


Sean

"Ben Hinkle" <ben.hinkle@gmail.com> wrote in message news:dfv1c0$2cqa$1@digitaldaemon.com...
> This isn't specific to D but does anyone know of a compiler or language
that
> optimizes based on profiler output? In other words you run the program a
few
> times through typical usage and collect profiler data and then recompile with that profiler data in order to do more optimizations (or less...).
I'm
> curious how effective it is instead of a JIT, for example.

You can use the builtin D profiler to order the layout of code to minimize thrashing. See www.digitalmars.com/ctg/trace.html. A linker module definition file, trace.def, will be created which will order the code.