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1. Enable MOVDIRI, MOVDIR64B, CLDEMOTE and WAITPKG for march=tremont 2. Move PREFETCHW from march=broadwell to march=silvermont. 3. Add PREFETCHWT1 to march=knl gcc/ChangeLog: 2020-11-09 Lili Cui <lili.cui@intel.com> PR target/97685 * config/i386/i386.h: (PTA_BROADWELL): Delete PTA_PRFCHW. (PTA_SILVERMONT): Add PTA_PRFCHW. (PTA_KNL): Add PTA_PREFETCHWT1. (PTA_TREMONT): Add PTA_MOVDIRI, PTA_MOVDIR64B, PTA_CLDEMOTE and PTA_WAITPKG. * doc/invoke.texi: Delete PREFETCHW for broadwell, skylake, knl, knm, skylake-avx512, cannonlake, icelake-client, icelake-server, cascadelake, cooperlake, tigerlake and sapphirerapids. Add PREFETCHW for silvermont, goldmont, goldmont-plus and tremont. Add XSAVEC and XSAVES for goldmont, goldmont-plus and tremont. Add MOVDIRI, MOVDIR64B, CLDEMOTE and WAITPKG for tremont. Add KEYLOCKER and HREST for alderlake. Add AMX-BF16, AMX-TILE, AMX-INT8 and UINTR for sapphirerapids. Add KEYLOCKER for tigerlake.
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