[PATCH] D52479: [AArch64][v8.5A] Add prediction invalidation instructions to AArch64

[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 new system instructions which act as barriers to speculative
execution based on earlier execution within a particular execution
context.

Patch by Pablo Barrio!


Repository:
  rL LLVM

https://reviews.llvm.org/D52479

Files:
  lib/Target/AArch64/AArch64.td
  lib/Target/AArch64/AArch64InstrInfo.td
  lib/Target/AArch64/AArch64Subtarget.h
  lib/Target/AArch64/AArch64SystemOperands.td
  lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
  lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
  lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
  lib/Target/AArch64/Utils/AArch64BaseInfo.h
  test/MC/AArch64/armv8.5a-predctrl-error.s
  test/MC/AArch64/armv8.5a-predctrl.s
  test/MC/Disassembler/AArch64/armv8.5a-predctrl.txt

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