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[X86] Improve lower1BitShuffle handling for KSHIFTL on narrow vectors.
authorCraig Topper <craig.topper@intel.com>
Sun, 18 Aug 2019 18:52:46 +0000 (18:52 +0000)
committerCraig Topper <craig.topper@intel.com>
Sun, 18 Aug 2019 18:52:46 +0000 (18:52 +0000)
commit9b62c8ee424e72799c32ca7756b15d21fdf777f2
tree03d7e02b3a4121607de6c57692056193b52cd162tree | snapshot
parent67570bd6bce44f742390f791234054975d1c151dcommit | diff
[X86] Improve lower1BitShuffle handling for KSHIFTL on narrow vectors.

We can insert the value into a larger legal type and shift that
by the desired amount.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369215 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
test/CodeGen/X86/kshift.ll diff | blob | history
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