tree 940be26cc6980396d7c80609106757b98901de5b
parent c66b9564b9348a365f0a98867c275915cec26528
author Zaara Syeda <syzaara@ca.ibm.com> 1511802663 +0000
committer Zaara Syeda <syzaara@ca.ibm.com> 1511802663 +0000

[Power9] Improvements to vector extract with variable index exploitation

This patch extends on to rL307174 to not use the power9 vector extract with
variable index instructions when extracting word element 1. For such cases,
the existing selection of MFVSRWZ provides a better sequence.

Differential Revision: https://reviews.llvm.org/D38287

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319049 91177308-0d34-0410-b5e6-96231b3b80d8