Hi,while working on a faster auto-decoding it became oblivous that branch-prediction primitives such as the llvm_expect or builtin_expect are quite useful and should be avilable in a cross-platform compatible way.
I propose to add a new module to to druntime called core.intrinsics that would have functions like
bool likely (bool expr); bool unlikely (bool expr); and maybe void prefetch(void* mem)Please share your thoughts and tell me what other intrincic functions could/should be added.
