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dim
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2019-02-09T12:01:10.310330Z
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MFC r342592:

Pull in r342397 from upstream llvm trunk (by Amara Emerson):

  Revert "Revert r342183 "[DAGCombine] Fix crash when store merging
  created an extract_subvector with invalid index.""

  Fixed the assertion failure.

  Differential Revision: https://reviews.llvm.org/D51831

This fixes 'Assertion failed: ((VT.getVectorNumElements() +
N2C->getZExtValue() <= N1.getValueType().getVectorNumElements()) &&
"Extract subvector overflow!"), function getNode' when building the
multimedia/aom port (with AVX2 enabled).

Reported by:	jbeich
PR:		234480

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