[PATCH] D111517: [X86] Remove little support we had for MPX

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: craig.topper, pengfei, skan.
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GCC 9.1 removed Intel MPX support. Linux kernel removed MPX in 2019.
Our support is limited: we support assembling of bndmov but not bnd.

Just remove MPX code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111517

Files:
  llvm/lib/Target/X86/X86InstrInfo.cpp
  llvm/lib/Target/X86/X86InstrInfo.td
  llvm/lib/Target/X86/X86InstrMPX.td
  llvm/test/MC/X86/mpx-encodings.s
  llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp

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