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8415f84e49
detection. It was incorrectly handling undef lanes by actually treating an undef lane in the first 128-bit lane as a *numeric* shuffle value. Fortunately, this almost always DTRT and disabled detecting repeated patterns. But not always. =/ This patch introduces a much more principled approach and fixes the miscompiles I spotted by inspection previously. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218346 91177308-0d34-0410-b5e6-96231b3b80d8 |
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