Updating SVN tree U gcc/DATESTAMP U gcc/ChangeLog U gcc/common/config/i386/i386-common.c U gcc/config/i386/avx512bitalgintrin.h U gcc/config/i386/i386.opt U gcc/config/i386/i386-c.c U gcc/config/i386/i386-builtin.def U gcc/config/i386/avx512vbmi2intrin.h U gcc/config/i386/i386.c Updated to revision 255997. Adjusting file timestamps