[CostModel][X86][AArch64] Adjust cost of the scalarization part of min/max reduction.
Summary: The comment says we need 3 extracts and a select at the end. But didn't we just account for the select in the vector cost above. Aren't we just extracting the single element after taking the min/max in the vector register?
Reviewers: RKSimon, spatel, ABataev
Reviewed By: RKSimon
Subscribers: javed.absar, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D55480
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348739
91177308-0d34-0410-b5e6-
96231b3b80d8
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