Mike Stump 33270211a0 More exception handling improvements... WIP. ...

Highlights include:

  Add a helper to generate __cxa_free_exception and _ZSt9terminatev.
  Add a region to handle EH object deallocation for ctor failures for throw.
  Add a terminate handler for __cxa_end_catch.
  A framework for adding cleanup actions for the exceptional edges only.

llvm-svn: 90305

2009-12-02 07:41:41 +00:00

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