[x86] Make the single-input v8i16 lowering directly recurse rather than

going back through the entire vector shuffle lowering.

This is an important step to being able to re-use this logic.

llvm-svn: 230743

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 6866be74fa0..1bc68f3eaf7 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -7859,8 +7859,8 @@ static SDValue lowerV8I16GeneralSingleInputVectorShuffle(
 
     // Recurse back into this routine to re-compute state now that this isn't
     // a 3 and 1 problem.
-    return DAG.getVectorShuffle(MVT::v8i16, DL, V, DAG.getUNDEF(MVT::v8i16),
-                                Mask);
+    return lowerV8I16GeneralSingleInputVectorShuffle(DL, V, Mask, Subtarget,
+                                                     DAG);
   };
   if ((NumLToL == 3 && NumHToL == 1) || (NumLToL == 1 && NumHToL == 3))
     return balanceSides(LToLInputs, HToLInputs, HToHInputs, LToHInputs, 0, 4);