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[X86] Refine "Support -march=alderlake"

Authored by FreddyYe on Mar 3 2021, 12:17 AM.

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[X86] Refine "Support -march=alderlake"

Refine "Support -march=alderlake"
Compare with tremont, it includes 25 more new features. They are
adx, aes, avx, avx2, avxvnni, bmi, bmi2, cldemote, f16c, fma, hreset, invpcid,
kl, lzcnt, movdir64b, movdiri, pclmulqdq, pconfig, pku, serialize, shstk, vaes,
vpclmulqdq, waitpkg, widekl.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D97832

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