MOVDQA

401397: callq 400ec8 begin timestamp <clock_get time@plt> Overhead 40139c: mov 0x20285d C = (%rip),%rcx bigGlobal Vector_M_start 4013a3: mov 0x20285e(%rip),%rdx D = bigGlobal Vector_M_finish 4013aa: mov %eax,%r12d save begin timestamp 4013ad: movdqa (%rsp),%xmm2 restore xmm2 4013b2: xor %eax,%eax A = 0 4013b4: sub %rcx,%rdx D = vector size in bytes 4013b7: movdqa 0x10(%rsp),%xmm1 restore xmm1 4013bd: sar $0x2,%rdx D = vector size in elements 4013c1: nopl 0x0(%rax) Inner loop for big vector 4013c8: cmp %rax,%rdx bounds check A vs.