--- a/cpuid.c 2018-01-11 01:12:46.460684517 -0500 +++ b/cpuid.c 2018-01-11 01:12:58.906709082 -0500 @@ -4200,6 +4200,7 @@ print_7_edx(unsigned int value) static named_item names[] = { { "AVX512_4VNNIW: neural network instrs" , 2, 2, bools }, { "AVX512_4FMAPS: multiply acc single prec" , 3, 3, bools }, + { "SPEC_CTRL: Speculation Control (IBRS and IBPB)" , 26, 26, bools }, }; print_names(value, names, LENGTH(names, named_item), /* max_len => */ 40);