[gcc/aoliva/heads/testme] hardcfr: add optional checkpoints

[Alexandre Oliva]

The branch 'aoliva/heads/testme' was updated to point to:

 a24f0b8b806... hardcfr: add optional checkpoints

It previously pointed to:

 d3696cfc39a... hardcfr: check before potential sibcalls

Diff:

!!! WARNING: THE FOLLOWING COMMITS ARE NO LONGER ACCESSIBLE (LOST):
-------------------------------------------------------------------

  d3696cf... hardcfr: check before potential sibcalls
  6ae17fd... hardcfr: add checking at exceptions and noreturn calls


Summary of changes (added commits):
-----------------------------------

  a24f0b8... hardcfr: add optional checkpoints