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[X86][MMX] Optimize MMX shift intrinsics.

Authored by pengfei on Jul 9 2020, 11:12 PM.

Description

[X86][MMX] Optimize MMX shift intrinsics.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D83534

Details

Committed
pengfeiJul 10 2020, 8:16 PM
Reviewer
craig.topper
Differential Revision
D83534: [X86][MMX] Optimize MMX shift intrinsics.
Parents
rG3e3acc1cc773: [PowerPC][MachinePipeliner] Enable pipeliner if hasInstrSchedModel
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