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37023003ea
Need to fix several cost-related problems. The final type may be defined incorrectly because of to early definition (we may end up with the wider type), the CommonCost should not be redefined in ExtractElements cost related calculations and the shuffle of the final insertelements vectors should be calculated as a cost of single vector permutations + costs of two vector permutations for other n-1 incoming vectors. Differential Revision: https://reviews.llvm.org/D106578
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