[PATCH] D33510: [Power9] Exploit vector integer extend instructions

[Zaara Syeda via Phabricator via llvm-commits]

syzaara created this revision.

This patch adds build vector patterns to exploit the vector integer extend instructions:
vextsb2w - Vector Extend Sign Byte To Word
vextsb2d - Vector Extend Sign Byte To Doubleword
vextsh2w - Vector Extend Sign Halfword To Word
vextsh2d - Vector Extend Sign Halfword To Doubleword
vextsw2d - Vector Extend Sign Word To Doubleword


https://reviews.llvm.org/D33510

Files:
  lib/Target/PowerPC/PPCInstrVSX.td
  test/CodeGen/PowerPC/vec_int_ext.ll

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