Krzysztof Parzyszek fdb7b693a7 Tail duplication can mix incompatible registers in phi nodes ...

Do not tail duplicate blocks where the successor has a phi node,
and the corresponding value in that phi node uses a subregister.

http://reviews.llvm.org/D13922

llvm-svn: 250877

2015-10-21 02:40:06 +00:00

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