[all-commits] [llvm/llvm-project] 033138: [IR] make stack-protector-guard-* flags into modul...

[Nick Desaulniers via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 033138ea452f5f493fb5095e5963419905ad12e1
      https://github.com/llvm/llvm-project/commit/033138ea452f5f493fb5095e5963419905ad12e1
  Author: Nick Desaulniers <ndesaulniers at google.com>
  Date:   2021-05-21 (Fri, 21 May 2021)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/CodeGen/BackendUtil.cpp
    M clang/lib/CodeGen/CodeGenModule.cpp
    A clang/test/CodeGen/stack-protector-guard.c
    M llvm/include/llvm/CodeGen/CommandFlags.h
    M llvm/include/llvm/IR/Module.h
    M llvm/include/llvm/Target/TargetOptions.h
    M llvm/lib/CodeGen/CommandFlags.cpp
    M llvm/lib/CodeGen/StackProtector.cpp
    M llvm/lib/IR/Module.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/stack-guard-sysreg.ll
    M llvm/test/CodeGen/X86/stack-protector-3.ll
    A llvm/test/Linker/stack-protector-guard-module-attrs.ll

  Log Message:
  -----------
  [IR] make stack-protector-guard-* flags into module attrs

D88631 added initial support for:

- -mstack-protector-guard=
- -mstack-protector-guard-reg=
- -mstack-protector-guard-offset=

flags, and D100919 extended these to AArch64. Unfortunately, these flags
aren't retained for LTO. Make them module attributes rather than
TargetOptions.

Link: https://github.com/ClangBuiltLinux/linux/issues/1378

Reviewed By: tejohnson

Differential Revision: https://reviews.llvm.org/D102742