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Adds code to PPC ISEL lowering to recognize half-word inserts from…

Authored by Graham Yiu <gyiu@ca.ibm.com> on Nov 1 2017, 11:06 AM.

Description

Adds code to PPC ISEL lowering to recognize half-word inserts from vector_shuffles, and use P9 shift and vector insert instructions instead of vperm.

Differential Revision: https://reviews.llvm.org/D34160

llvm-svn: 317111

Details

Committed
Graham Yiu <gyiu@ca.ibm.com>Nov 1 2017, 11:06 AM
Differential Revision
D34160: [Power9] Exploit vinserth instruction
Parents
rGc8516346e4b6: Revert r317105 to investigate bot breakage.
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Event Timeline

Graham Yiu <gyiu@ca.ibm.com> committed rG671526148c54: Adds code to PPC ISEL lowering to recognize half-word inserts from… (authored by Graham Yiu <gyiu@ca.ibm.com>).Nov 1 2017, 11:06 AM