[all-commits] [llvm/llvm-project] cd284b: [clang][ARM] re-use arm::isHardTPSupported for har...

Tue Dec 28 13:29:04 PST 2021

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cd284b7ac0615afc6e0f1a30da2777e361de27a3
      https://github.com/llvm/llvm-project/commit/cd284b7ac0615afc6e0f1a30da2777e361de27a3
  Author: Nick Desaulniers <ndesaulniers at google.com>
  Date:   2021-12-28 (Tue, 28 Dec 2021)

  Changed paths:
    M clang/lib/Driver/ToolChains/Clang.cpp

  Log Message:
  -----------
  [clang][ARM] re-use arm::isHardTPSupported for hardware TLS check

This conditional check for -mstack-protector-guard=tls got out of sync
with the conditional check for -mtp=cp15 by me in D114116, because I
forgot about the similar check added in D113026.

Re-use the code in arm::isHardTPSupported so that these aren't out of
sync.

Interestingly, our CI reported this when testing
-mstack-protector-guard=tls; it was only reproducible with Debian's LLVM
and not upstream LLVM due to this out of tree patch:
https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/blob/snapshot/debian/patches/930008-arm.diff

Fixes: https://github.com/ClangBuiltLinux/linux/issues/1502

Reviewed By: ardb

Differential Revision: https://reviews.llvm.org/D116233