commit f3a030510b2554fa6657e32fd35aae8ddbb142b4
author Jessica Paquette <jpaquette@apple.com> Thu Apr 18 21:15:48 2019 +0000
committer Jessica Paquette <jpaquette@apple.com> Thu Apr 18 21:15:48 2019 +0000
tree d8cbbfb0b291ce1eb0ef3bd85ee1c02deca656af
parent d49ac7f542c29cd27c16d592b35946113d4943ab

[GlobalISel][AArch64] Legalize/select G_(S/Z/ANY)_EXT for v8s8s

This adds legalization for G_SEXT, G_ZEXT, and G_ANYEXT for v8s8s.

We were falling back on G_ZEXT in arm64-vabs.ll before, preventing us from
selecting the @llvm.aarch64.neon.sabd.v8i8 intrinsic.

This adds legalizer support for those 3, which gives us selection via the
importer. Update the relevant tests (legalize-ext.mir, select-int-ext.mir) and
add a GISel line to arm64-vabs.ll.

Differential Revision: https://reviews.llvm.org/D60881

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358715 91177308-0d34-0410-b5e6-96231b3b80d8