[GlobalISel] Implement narrowScalar for SADDE/SSUBE/UADDE/USUBE
authorCassie Jones <code@witchoflight.com>
Mon, 22 Feb 2021 22:11:35 +0000 (17:11 -0500)
committerCassie Jones <code@witchoflight.com>
Tue, 23 Feb 2021 00:59:36 +0000 (19:59 -0500)
commit8f956a5e8f5a64064ba62d0c503d80f5dc44564a
tree2a4e61d7047d2f780f936c0cc9c2503fa6925340
parente1532649cb2af05991b62fe177e19f9c8ce212de
[GlobalISel] Implement narrowScalar for SADDE/SSUBE/UADDE/USUBE

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D96673
llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
llvm/unittests/CodeGen/GlobalISel/LegalizerHelperTest.cpp