[llvm-branch-commits] [llvm] [RISCV] Support non-power-of-2 types when expanding memcmp (PR #114971)

[Pengcheng Wang via llvm-branch-commits]

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@@ -16190,13 +16186,20 @@ combineVectorSizedSetCCEquality(EVT VT, SDValue X, SDValue Y, ISD::CondCode CC,
     return SDValue();
 
   unsigned VecSize = OpSize / 8;
-  EVT VecVT = MVT::getVectorVT(MVT::i8, VecSize);
-  EVT CmpVT = MVT::getVectorVT(MVT::i1, VecSize);
+  EVT VecVT = EVT::getVectorVT(*DAG.getContext(), MVT::i8, VecSize);
+  EVT CmpVT = EVT::getVectorVT(*DAG.getContext(), MVT::i1, VecSize);
 
   SDValue VecX = DAG.getBitcast(VecVT, X);
   SDValue VecY = DAG.getBitcast(VecVT, Y);
-  SDValue Cmp = DAG.getSetCC(DL, CmpVT, VecX, VecY, ISD::SETNE);
-  return DAG.getSetCC(DL, VT, DAG.getNode(ISD::VECREDUCE_OR, DL, XLenVT, Cmp),
+  SDValue Mask = DAG.getAllOnesConstant(DL, CmpVT);
+  SDValue VL = DAG.getConstant(VecSize, DL, XLenVT);
+
+  SDValue Cmp = DAG.getNode(ISD::VP_SETCC, DL, CmpVT, VecX, VecY,
+                            DAG.getCondCode(ISD::SETNE), Mask, VL);
+  return DAG.getSetCC(DL, VT,
+                      DAG.getNode(ISD::VP_REDUCE_OR, DL, XLenVT,
+                                  DAG.getConstant(0, DL, XLenVT), Cmp, Mask,
+                                  VL),
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wangpc-pp wrote:

I think so, because this PR was done several months later after that commit. 

https://github.com/llvm/llvm-project/pull/114971