On 09/10/2013 05:57 AM, Kirill Yukhin wrote: > + { OPTION_MASK_ISA_AVX512F, CODE_FOR_andhi_1, "__builtin_ia32_kandhi", IX86_BUILTIN_KAND16, UNKNOWN, (int) HI_FTYPE_HI_HI }, Alternately, why not use the standard CODE_FOR_andhi3 expander? r~