Robert Stevenson <9goli...@gmail.com> writes: > I am planning to begin a project to explore the space of tuning gcc > internals in an effort to increase performance. I am wondering if > anyone can point to me any parameterizations, heuristics, or > priorities functions within gcc that can be tuned/adjusted. Some > general areas I am considering include register allocation and data > prefetching.
gcc has lots of params (see gcc -v --help=params) for different areas that can be tuned. If you need more there's a generic parameters frame work to add. And of course there are lots of command line flags (see --help) One example of an existing autotuner is the gccflags tuner in opentuner. -Andi -- a...@linux.intel.com -- Speaking for myself only
