On Fri, Jan 16, 2009 at 11:35 AM, Jack Lloyd <ll...@randombit.net> wrote: > According to the info docs, the Alpha has __builtin_alpha_rpcc which > doesn't take any inputs either, and should just call rpcc much as an > rdtsc intrinsic would, so it may provide a more direct model.
(define_insn "builtin_rpcc" [(set (match_operand:DI 0 "register_operand" "=r") (unspec_volatile:DI [(const_int 0)] UNSPECV_RPCC))] "" "rpcc %0" [(set_attr "type" "ilog")]) So yes this is exactly what I was mentioning to do ... -- Pinski