[PATCH] D52482: [AArch64][v8.5A] Add speculation restriction system registers

[Oliver Stannard via Phabricator via llvm-commits]

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

This adds some new system registers which can be used to restrict
certain types of speculative execution.

Patch by Pablo Barrio and David Spickett!


Repository:
  rL LLVM

https://reviews.llvm.org/D52482

Files:
  lib/Target/AArch64/AArch64.td
  lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  lib/Target/AArch64/AArch64Subtarget.h
  lib/Target/AArch64/AArch64SystemOperands.td
  lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
  lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp
  test/MC/AArch64/armv8.5a-specrestrict-error.s
  test/MC/AArch64/armv8.5a-specrestrict.s
  test/MC/Disassembler/AArch64/armv8.5a-specrestrict.txt

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