tree a8dcaaa77d257428be22be164c2bac7bf5598f61
parent b8453b53a1f5e2e940b7a2b083c098e44bca1d6e
author Sam Parker <sam.parker@arm.com> 1585317530 +0000
committer Copybara-Service <copybara-worker@google.com> 1603367748 -0700

[ARM][LowOverheadLoops] DoubleWidthResult instructions canGenerateZeros

Given that some instructions generate wider result elements than
their inputs, flag them as being able to generate non zeros in the
false lanes.

Differential Revision: https://reviews.llvm.org/D76766

GitOrigin-RevId: d7084fa34aea7ac9ddf18fbe25731d2c8d291db0