[all-commits] [llvm/llvm-project] 910a64: [compiler-rt] Implement ARM atomic operations for...

[Pavel Kosov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 910a642c0a5b66a8d2517026b890a1acdc447f19
      https://github.com/llvm/llvm-project/commit/910a642c0a5b66a8d2517026b890a1acdc447f19
  Author: Pavel Kosov <kosov.pavel at huawei.com>
  Date:   2022-02-17 (Thu, 17 Feb 2022)

  Changed paths:
    M compiler-rt/cmake/Modules/CompilerRTUtils.cmake
    M compiler-rt/cmake/config-ix.cmake
    M compiler-rt/lib/builtins/CMakeLists.txt
    M compiler-rt/lib/builtins/arm/sync-ops.h

  Log Message:
  -----------
  [compiler-rt] Implement  ARM atomic operations for architectures without SMP support

ARMv5 and older architectures don’t  support SMP and do not have atomic instructions. Still they’re in use in IoT world, where one has to stick to libgcc.

Reviewed By: mstorsjo

Differential Revision: https://reviews.llvm.org/D116088