Nick Lewycky 39b12c059d Add a constant folding of casts from zero to zero. Fixes PR9011!
While here, I'd like to complain about how vector is not an aggregate type
according to llvm::Type::isAggregateType(), but they're listed under aggregate
types in the LangRef and zero vectors are stored as ConstantAggregateZero.

llvm-svn: 123956
2011-01-21 01:12:09 +00:00
..
2007-04-14 23:04:54 +00:00
2010-11-14 07:03:49 +00:00