gcc is perfectly cromulent on Power (speaking from experience with my own PowerPC and POWER6 systems, and when I had time on one of Raptor's POWER8 systems). Th

gcc is perfectly cromulent on Power (speaking from experience with my own PowerPC and POWER6 systems, and when I had time on one of Raptor's POWER8 systems). The speed differential between that and IBM xlc is pretty small IME nowadays, too. I'm more hesitant to say the same about clang/llvm but it's been awhile and I'm probably not current.