re PR middle-end/37293 (r139762 breaks libstdc++ build on darwin)

2008-09-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/37293
        * cgraphunit.c (update_call_expr): Remove eh regions from statements
        which become non throw.
        (cgraph_function_versioning): Also clear DECL_WEAK.  Call
        update_call_expr after updating the flags on the decl.

2008-09-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/37293
        * g++.dg/torture/ipa-cp-1.C: New test.

From-SVN: r139946