codegen is a big one, as are inference.jl, gf.c, and cgutils.cpp. But there are optimization sprinkled throughout (e.g., ccall.cpp).
You might be interested in this: https://github.com/JuliaLang/julia/issues/3440 Most of the optimizations so far are low level; most of the higher-level stuff tends to be macros in packages (@devec being a prime example, I'm working on another now). The fact that @devec didn't work for you is evidence that this is nontrivial (I bet that Dahua would be interested in contributions that improve it). In the longer run, it might be interesting to experiment with LLVM's Polly, but I'm not very clear on how far that project has gotten in practice. --Tim On Monday, July 21, 2014 03:51:11 PM Andrei wrote: > Could you please point me to where these optimizations take place? I see > some other transformations (like escape analysis, for example) happening in > codegen, are there any other places I should look at? > > On Mon, Jul 21, 2014 at 2:43 PM, Tim Holy <tim.h...@gmail.com> wrote: > > On Monday, July 21, 2014 02:33:26 PM Andrei wrote: > > > I see one disadvantage of using these tools, however - they are much > > > > harder > > > > > to read. Are there any plans for automatic code optimization on compiler > > > level? > > > > There are already many optimizations in place. But there's always more you > > could do. > > > > --Tim