[PATCH] D15020: [AArch64] Add ARMv8.2-A UAO PSTATE bit

[Oliver Stannard via llvm-commits]

olista01 created this revision.
olista01 added a reviewer: t.p.northover.
olista01 added a subscriber: llvm-commits.
olista01 set the repository for this revision to rL LLVM.
Herald added subscribers: rengolin, aemerson.

ARMv8.2-A adds a new PSTATE bit, PSTATE.UAO, which allows the LDTR/STTR
instructions to behave the same as LDR/STR with respect to execute-only
pages at higher privilege levels. New variants of the MSR/MRS
instructions are added to allow reading and writing this bit. It is a
required part of ARMv8.2-A, so no additional subtarget features are
required.

Repository:
  rL LLVM

http://reviews.llvm.org/D15020

Files:
  lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
  lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp
  lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
  lib/Target/AArch64/Utils/AArch64BaseInfo.h
  test/MC/AArch64/armv8.2a-uao.s
  test/MC/Disassembler/AArch64/armv8.2a-uao.txt

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