[all-commits] [llvm/llvm-project] 79f9c7: [AArch64][MC] Merge FeaturePMU into FeaturePerfMon

[Victor Campos via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 79f9c79aaf84c831e660b9065ea15ab1d249927e
      https://github.com/llvm/llvm-project/commit/79f9c79aaf84c831e660b9065ea15ab1d249927e
  Author: Victor Campos <victor.campos at arm.com>
  Date:   2021-09-06 (Mon, 06 Sep 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64.td
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/lib/Target/AArch64/AArch64Subtarget.h
    M llvm/lib/Target/AArch64/AArch64SystemOperands.td
    R llvm/test/MC/AArch64/armv8.4a-pmu.s
    M llvm/test/MC/AArch64/basic-a64-instructions.s
    R llvm/test/MC/Disassembler/AArch64/armv8.4a-pmu.txt
    M llvm/test/MC/Disassembler/AArch64/basic-a64-instructions.txt

  Log Message:
  -----------
  [AArch64][MC] Merge FeaturePMU into FeaturePerfMon

FeaturePMU was created in AArch64 to accommodate one missing system
register, PMMIR_EL1, in commit ffcd7698aea7bcbb2b4edffc484793e1ff47b85d.

However, the Performance Monitors extension already had a target
feature, which is called FeaturePerfMon. Therefore, FeaturePMU is
redundant.

This patch removes FeaturePMU and merges its contents into
FeaturePerfMon.

Reviewed By: dnsampaio

Differential Revision: https://reviews.llvm.org/D109246