[all-commits] [llvm/llvm-project] f85575: Fix openmp CMake build on non-Linux AArch64 systems.

[Chandler Carruth via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f855751c1284c82c1c46b98f6d1b3ca2021d6cb9
      https://github.com/llvm/llvm-project/commit/f855751c1284c82c1c46b98f6d1b3ca2021d6cb9
  Author: Chandler Carruth <chandlerc at gmail.com>
  Date:   2021-01-17 (Sun, 17 Jan 2021)

  Changed paths:
    M openmp/runtime/cmake/LibompGetArchitecture.cmake

  Log Message:
  -----------
  Fix openmp CMake build on non-Linux AArch64 systems.

This just checks for `/proc/cpuinfo` existing before reading it.

Tested on an ARM macOS machine.