nadav256

Grep the code for rand_reset. The code uses a fixed seed, fixed sizes for all programs, stable nop baseline, etc. also the pointer indirection blocks compiler optimizations.

I guess that you are referring to other projects because the benchmarks in this repo use a stable seed, turbo disabled, physical machine, both random and stable sizes, etc.

We plan to open source the code ASAP. It will take us a few days to finish the paperwork. The repo is already ready. So hang on.

Danny, you mentioned loop and SLP vectorization. One thing that bothered me while watching the development of the SLP and Loop vectorizers over the last two years was that developers who cared about SPEC added functionality that increased compile time. I remember one change that added a second phase that scans the entire IR in the SLP vectorizer to get a 1.4% win in one of the SPEC programs. I hoped the FTL project would be able to enable the vectorizers, but to my disappointment the vectorizers are too slow to justify the boost on javascript workloads.

IACA is a very useful tool. When working on the LLVM compiler I've used it extensively.

I don't think that OpenShadingLanguage is dynamic.

This project is such a great technological achievement for both the Webkit and LLVM communities. There are so many 'first times' in this project. This is the first time profile guided information is used inside the LLVM _JIT_. This is the first time the LLVM infrastructure supported self-modifying code. This is one of the very few successful projects that used LLVM to accelerate a dynamic language. This is the first time Webkit integrated their runtime (JITs and garbage collector) with an external JIT. This is the first JavaScript implementation that has advance features such as auto-vectorization. Congrats guys!