[PATCH] D53665: [X86] Add a common-avx512 CPU to match icc's -xCOMMON-AVX512 option

[Craig Topper via Phabricator via cfe-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, spatel.

This adds a common-avx512 CPU to target the avx512 features common between skylake-avx512 and knl.

This is the clang version of https://reviews.llvm.org/D53663


https://reviews.llvm.org/D53665

Files:
  include/clang/Basic/X86Target.def
  lib/Basic/Targets/X86.cpp
  test/Frontend/x86-target-cpu.c
  test/Misc/target-invalid-cpu-note.c
  test/Preprocessor/predefined-arch-macros.c

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