[PATCH] D73950: [AArch64] Make Read Write System Registers Read Only

[Luke Geeson via Phabricator via llvm-commits]

LukeGeeson created this revision.
LukeGeeson added a reviewer: simon_tatham.
Herald added subscribers: llvm-commits, hiraditya, kristof.beyls.
Herald added a project: LLVM.

This patch makes the following System Registers Read Only:

- CurrentEL
- ICH_MISR_EL2
- PMBIDR_EL1
- PMSIDR_EL1

  as found in: https://developer.arm.com/docs/ddi0595/e/aarch64-system-registers

  Relative line numbers were also added to the tests so we get more informative error messages on failure.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73950

Files:
  llvm/lib/Target/AArch64/AArch64SystemOperands.td
  llvm/test/MC/AArch64/arm64-system-encoding.s
  llvm/test/MC/AArch64/armv8.2a-statistical-profiling.s
  llvm/test/MC/AArch64/basic-a64-instructions.s
  llvm/test/MC/AArch64/gicv3-regs.s
  llvm/test/MC/Disassembler/AArch64/armv8.2a-statistical-profiling.txt
  llvm/test/MC/Disassembler/AArch64/basic-a64-instructions.txt
  llvm/test/MC/Disassembler/AArch64/gicv3-regs.txt

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