am b3641da0: am 147eb41b: (-s ours) Revert "Revert "Revert "Revert "Add implicit null and stack checks for x86""""

* commit 'b3641da04bc0f9538368f817b528e8ec55bf9eea':
  Revert "Revert "Revert "Revert "Add implicit null and stack checks for x86""""