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Author SHA1 Message Date
Richard Smith 72db888389 PR35039: Materialize temporary objects before wrapping them in an 
OpaqueValueExpr in a GNU binary conditional expression.

It's not meaningful for a non-materialized temporary object to be used as a
common subexpression of multiple expressions.

llvm-svn: 316836
 2017-10-28 18:59:51 +00:00
Richard Smith 122f88d481 [c++17] P0135R1: Guaranteed copy elision. 
When an object of class type is initialized from a prvalue of the same type
(ignoring cv qualifications), use the prvalue to initialize the object directly
instead of inserting a redundant elidable call to a copy constructor.

llvm-svn: 288866
 2016-12-06 23:52:28 +00:00