[PATCH] D14877: Fix ICE on lowering of constexpr vector splats

[George Burgess IV via cfe-commits]

george.burgess.iv added a comment.

> Maybe we could remove CK_BooleanToSignedFloating and model that conversion as a sequence of CK_BooleanToSignedIntegral followed by CK_IntegralToFloating? I don't imagine it's a common operation, so the simpler AST representation is probably worth more than the minor memory savings.


SGTM.


http://reviews.llvm.org/D14877