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[X86] Add support for folding (insert_subvector vec1, (extract_subvector vec2…

Authored by craig.topper on Feb 4 2017, 3:26 PM.

Description

[X86] Add support for folding (insert_subvector vec1, (extract_subvector vec2, idx1), idx1) -> (blendi vec2, vec1).

llvm-svn: 294112

Details

Committed
craig.topperFeb 4 2017, 3:26 PM
Parents
rG3d95228dbef0: [X86] Simplify the code that turns INSERT_SUBVECTOR into BLENDI. NFCI
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