.Lnocacheinfo:
mov \$1,%eax
cpuid
+ movd %eax,%xmm0 # put aside processor id
and \$0xbfefffff,%edx # force reserved bits to 0
cmp \$0,%r9d
jne .Lnotintel
jc .Lnotknights
and \$0xfff7ffff,%ebx # clear ADCX/ADOX flag
.Lnotknights:
+ movd %xmm0,%eax # restore processor id
+ and \$0x0fff0ff0,%eax
+ cmp \$0x00050650,%eax # Skylake-X
+ jne .Lnotskylakex
+ and \$0xfffeffff,%ebx # ~(1<<16)
+ # suppress AVX512F flag on Skylake-X
+.Lnotskylakex:
mov %ebx,8(%rdi) # save extended feature flags
mov %ecx,12(%rdi)
.Lno_extended_info: