Benjamin Kramer 11be760757 X86: When combining shuffles just remove shuffles that are completely redundant.
CombineTo doesn't allow replacing a node with itself so this would crash if the
combined shuffle is the same as the input shuffle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212181 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-02 15:09:44 +00:00
..
2014-06-27 18:19:56 +00:00
2014-06-27 18:19:56 +00:00
2014-07-02 06:45:26 +00:00
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