[PATCH] D52484: [ARM][v8.5A] Add speculation barriers SSBB and PSSBB

[Oliver Stannard via Phabricator via llvm-commits]

olista01 created this revision.
Herald added a reviewer: javed.absar.
Herald added subscribers: llvm-commits, chrib, kristof.beyls.

This adds two new barrier instructions which can be used to restrict
speculative execution of load instructions.

Patch by Pablo Barrio!


Repository:
  rL LLVM

https://reviews.llvm.org/D52484

Files:
  lib/Target/ARM/ARMInstrInfo.td
  lib/Target/ARM/ARMInstrThumb2.td
  lib/Target/ARM/AsmParser/ARMAsmParser.cpp
  lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
  test/MC/ARM/basic-arm-instructions.s
  test/MC/ARM/basic-thumb2-instructions.s
  test/MC/ARM/csdb-errors.s
  test/MC/ARM/csdb.s
  test/MC/ARM/speculation-barriers-errors.s
  test/MC/ARM/speculation-barriers.s
  test/MC/Disassembler/ARM/basic-arm-instructions.txt
  test/MC/Disassembler/ARM/thumb2.txt

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