If you're an open source developer and don't feel like registering on AMD developer central website just to download their version of Open64. Please feel free to directly pull AMD's Open64 based release here.
http://download2-developer.amd.com/amd/open64/x86_open64-4.2.2.1-1.src.tar.bz2
If for some reason it's not there or moves often leave a comment here and I'll ensure anything that can be legally mirrored is done promptly.
