1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
index f7deeaf..ca4a655 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -2614,6 +2614,9 @@ static SDValue lower256BitShuffle(const SDLoc &DL, ArrayRef<int> Mask, MVT VT,
     if ((Result = lowerVECTOR_SHUFFLE_XVSHUF4I(DL, Mask, VT, V1, V2, DAG,
                                                Subtarget)))
       return Result;
+    // Try to widen vectors to gain more optimization opportunities.
+    if (SDValue NewShuffle = widenShuffleMask(DL, Mask, VT, V1, V2, DAG))
+      return NewShuffle;
     if ((Result =
              lowerVECTOR_SHUFFLE_XVPERMI(DL, Mask, VT, V1, DAG, Subtarget)))
       return Result;