CLWB isn't supported on Ice Lake client. But Ice Lake server support it.
Move PTA_CLWB to PTA_ICELAKE_SERVER.
PR target/95874
* config/i386/i386.h (PTA_ICELAKE_CLIENT): Remove PTA_CLWB.
(PTA_ICELAKE_SERVER): Add PTA_CLWB.
(cherry picked from commit
c422e5f81f42a0fc197f0715f4fcd81f1be90bff)
| PTA_AVX512VBMI | PTA_AVX512IFMA | PTA_SHA;
const wide_int_bitmask PTA_ICELAKE_CLIENT = PTA_CANNONLAKE | PTA_AVX512VNNI
| PTA_GFNI | PTA_VAES | PTA_AVX512VBMI2 | PTA_VPCLMULQDQ | PTA_AVX512BITALG
- | PTA_RDPID | PTA_CLWB | PTA_AVX512VPOPCNTDQ;
+ | PTA_RDPID | PTA_AVX512VPOPCNTDQ;
const wide_int_bitmask PTA_ICELAKE_SERVER = PTA_ICELAKE_CLIENT | PTA_PCONFIG
- | PTA_WBNOINVD;
+ | PTA_WBNOINVD | PTA_CLWB;
const wide_int_bitmask PTA_KNL = PTA_BROADWELL | PTA_AVX512PF | PTA_AVX512ER
| PTA_AVX512F | PTA_AVX512CD;
const wide_int_bitmask PTA_BONNELL = PTA_CORE2 | PTA_MOVBE;