[BC ABI] Merged with HEAD

[Andrew Haley]

Tom Tromey writes:
 > >>>>> "Ranjit" == Ranjit Mathew <rmathew@gmail.com> writes:
 > 
 > >> 1.  a definite assignment issue for which I've created a PR,
 > >> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15650
 > 
 > Ranjit> Is this a BC-only issue?
 > 
 > Yes, as the otable is only meaningful for the BC ABI.
 > 
 > I wonder if we could generate ordinary trees for the purposes of
 > check-init, then lower to BC trees afterward.

We could certainly do it in the gimplify pass.

Andrew.