------- Comment #4 from avi at argo dot co dot il 2006-04-11 15:36 ------- Benchmark results, 32 bit code, various methods
On an athlon 64: bts reg, (reg): 1 cycle bts reg, (mem): 3 cycles C code (reg): 1 cycle C code (mem): 5 cycles On a Xeon: bts reg, (reg): 6 cycles bts reg, (mem): 15 cycles C code (reg): 1 cycle C code (mem): 5 cycles Looks like a very small win on athlon 64 when modifying memory. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25671
