[all-commits] [llvm/llvm-project] 16fe74: [PowerPC] Add ROP Protection Instructions for PowerPC

[stefanp-ibm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 16fe741c69429235210c03c46420f8fa6aece4a1
      https://github.com/llvm/llvm-project/commit/16fe741c69429235210c03c46420f8fa6aece4a1
  Author: Stefan Pintilie <stefanp at oc4686768078.ibm.com>
  Date:   2021-04-09 (Fri, 09 Apr 2021)

  Changed paths:
    M llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
    M llvm/lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp
    M llvm/lib/Target/PowerPC/MCTargetDesc/PPCInstPrinter.cpp
    M llvm/lib/Target/PowerPC/MCTargetDesc/PPCInstPrinter.h
    M llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.cpp
    M llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.h
    M llvm/lib/Target/PowerPC/P9InstrResources.td
    M llvm/lib/Target/PowerPC/PPCInstr64Bit.td
    M llvm/lib/Target/PowerPC/PPCInstrFormats.td
    M llvm/lib/Target/PowerPC/PPCInstrInfo.td
    M llvm/test/MC/Disassembler/PowerPC/ppc64-encoding-ISA31.txt
    M llvm/test/MC/PowerPC/ppc64-encoding-ISA31.s

  Log Message:
  -----------
  [PowerPC] Add ROP Protection Instructions for PowerPC

There are four new PowerPC instructions that are introduced in
Power 10. They are hashst, hashchk, hashstp, hashchkp.

These instructions will be used for ROP Protection.
This patch adds the four instructions.

Reviewed By: nemanjai, amyk, #powerpc

Differential Revision: https://reviews.llvm.org/D99375