[X86] Remove unnecessary SUBV_BROADCAST combines. NFCI.
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 15 Dec 2020 13:36:22 +0000 (13:36 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 15 Dec 2020 16:54:34 +0000 (16:54 +0000)
commitb0e5aea5572bbfaef1ad47777a7089b2879d2df4
tree748de426039b2c3edfbbf18a99bc35bfcfa59ec0
parenta00290ed10a6b4e9f6e9be44ceec367562f270c6
[X86] Remove unnecessary SUBV_BROADCAST combines. NFCI.

Noticed while dealing with D92645 - these are now handled by getFauxShuffleMask + shuffle combining code.
llvm/lib/Target/X86/X86ISelLowering.cpp