[PATCH] D97581: [SystemZ] Introduce distinction between the jg/jl family of mnemonics for GNU as vs HLASM

[Anirudh Prasad via Phabricator via llvm-commits]

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- This patch adds in the distinction between jg[*] and jl[*] pc-relative mnemonics based on the variant/dialect.
- Under the hlasm variant, we use the jl[*] family of mnemonics and under the att (GNU as) variant, we use the jg[*] family of mnemonics.
- jgnop which was added in https://reviews.llvm.org/D92185, is now restricted to att variant. jlnop is introduced and restricted to hlasm variant.
- The br[*]l additional mnemonics are mapped to either jl[*]/jg[*] based on the variant.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97581

Files:
  llvm/lib/Target/SystemZ/SystemZInstrFormats.td
  llvm/lib/Target/SystemZ/SystemZInstrInfo.td
  llvm/test/MC/SystemZ/insn-bad.s

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