[all-commits] [llvm/llvm-project] b43078: [ARM] emit PACBTI-M build attributes

[Ties Stuij via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b430782be34b1fa8be8ccfd6dcc13d524e905f23
      https://github.com/llvm/llvm-project/commit/b430782be34b1fa8be8ccfd6dcc13d524e905f23
  Author: Ties Stuij <ties.stuij at arm.com>
  Date:   2021-12-01 (Wed, 01 Dec 2021)

  Changed paths:
    M llvm/include/llvm/Support/ARMAttributeParser.h
    M llvm/include/llvm/Support/ARMBuildAttributes.h
    M llvm/lib/Support/ARMAttributeParser.cpp
    M llvm/lib/Support/ARMBuildAttrs.cpp
    M llvm/lib/Target/ARM/ARMAsmPrinter.cpp
    M llvm/lib/Target/ARM/MCTargetDesc/ARMTargetStreamer.cpp
    M llvm/test/CodeGen/ARM/build-attributes-encoding.s
    M llvm/test/CodeGen/ARM/build-attributes.ll
    A llvm/test/CodeGen/ARM/pacbti-module-attrs.ll
    M llvm/test/MC/ARM/directive-eabi_attribute.s

  Log Message:
  -----------
  [ARM] emit PACBTI-M build attributes

This patch is part of a series that adds support for the PACBTI-M extension of
the Armv8.1-M architecture, as detailed here:

https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/armv8-1-m-pointer-authentication-and-branch-target-identification-extension

The PACBTI-M specification can be found in the Armv8-M Architecture Reference
Manual:

https://developer.arm.com/documentation/ddi0553/latest

The following people contributed to this patch:

- Victor Campos
- Ties Stuij

Reviewed By: ostannard

Differential Revision: https://reviews.llvm.org/D112425