On Sat, Jan 24, 2015 at 2:16 AM, Uros Bizjak <ubiz...@gmail.com> wrote: > On Sat, Jan 24, 2015 at 11:13 AM, Uros Bizjak <ubiz...@gmail.com> wrote: >> On Sat, Jan 24, 2015 at 3:50 AM, H.J. Lu <hjl.to...@gmail.com> wrote: >>> On Fri, Jan 23, 2015 at 06:37:01PM -0800, H.J. Lu wrote: >>>> The new Silvermont aswell and Broadwell model numbers are in >>>> >>>> http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-optimization-manual.pdf >>>> >>>> This patch updates host_detect_local_cpu to check new Silvermont, Haswell >>>> and Broadwell model numbers. OK for trunk and 4.9 branch? >>>> >>>> Thanks. >>>> >>> >>> There are more model numbers in CHAPTER 35 MODEL-SPECIFIC REGISTERS (MSRS): >>> >>> http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-system-programming-manual-325384.pdf >>> >>> OK for trunk and 4.9 branch? >>> >>> Thanks. >>> >>> >>> H.J. >>> --- >>> 2015-01-23 H.J. Lu <hongjiu...@intel.com> >>> >>> * config/i386/driver-i386.c (host_detect_local_cpu): Check new >>> Silvermont, Haswell, Broadwell and Knights Landing model numbers. >> >> Please also update /libgcc/config/i386/cpuinfo.c and relevant testsuite >> files. > > Huh, complete AVX512 handling is missing in the above file. Adding Kirill to > CC: > > Uros.
Yes, model 0x4d is Sky Lake. Kirill, I don't think we want to tune it like KNL. I think it is closer to Broadwell than KNL. Before we have -mtune=skylake, we should make -mtune=native as -mtune=broadwell on Sky Lake. -- H.J.
