commit 02a0a4ef3b415e82e1f872fac999eb42ce0548a8
author Momchil Velikov <momchil.velikov@arm.com> Wed Feb 05 15:19:03 2020 +0000
committer Copybara-Service <copybara-worker@google.com> Tue Sep 22 03:07:45 2020 -0700
tree eff242effd28469209e819a906f5ff475bf19e1b
parent 06fb8e834aa783a62e64df61b94882eed01d37cc

[ARM][TargetParser] Improve handling of dependencies between target features

The patch at https://reviews.llvm.org/D64048 added "negative"
dependency handling in `ARM::appendArchExtFeatures`: feature "noX"
removes all features, which imply "X".

This patch adds the "positive" handling: feature "X" adds all the
feature strings implied by "X".

(This patch also comes from the suggestion here
https://reviews.llvm.org/D72633#inline-658582)

Differential Revision: https://reviews.llvm.org/D72762

GitOrigin-RevId: 3627c91ead934486fdb3986b911482a78f101309