Benjamin Kramer 1ca66919a5 CodeGen: Copy tail padding when we're not dealing with a trivial copy assign or move assign operator. ...

This fixes a regression from r162254, the optimizer has problems reasoning
about the smaller memcpy as it's often not safe to widen a store but making it
smaller is.

llvm-svn: 164917

2012-09-30 12:43:37 +00:00

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