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Commit f1ee2738 authored by Alexey Bataev's avatar Alexey Bataev
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[SLP]Fix a crash when insert subvector is out of range. 

If the OffsetBeg + InsertVecSz is greater than VecSz, need to estimate
the cost as shuffle of 2 vector, not as insert of subvector. Otherwise,
the inserted subvector is out of range and compiler may crash.

Differential Revision: https://reviews.llvm.org/D128071
parent ac4cb177
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