Douglas Gregor 21d3fca917 When producing IR for a lvalue-to-rvalue cast *as an lvalue*, only ...

non-class prvalues actually require the realization of a
temporary. For everything else, we already have an lvalue (or class
prvalue) in the subexpression.

Note: we're missing some move elision in this case. I'll tackle that next.
llvm-svn: 124453

2011-01-27 23:22:05 +00:00

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