[PATCH] D122063: [X86] Simplify function isDataInvariant by using X86MnemonicTables

[Kan Shengchen via Phabricator via llvm-commits]

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This is not a NFC change b/c we add more instructions like
IMUL16/32/64r, MOV16ao16 and MOV16rr_REV etc to the list.
But I think it's reasonable.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D122063

Files:
  llvm/lib/Target/X86/X86InstrInfo.cpp
  llvm/test/CodeGen/X86/speculative-load-hardening.ll

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