diff --git a/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp b/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp
index 834575ca2d1c8cc10645a870aceea791675c977a..d5b7bddcb4a805cdb27bb312bf3d905c8072cb41 100644
--- a/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp
+++ b/src/mapleall/maple_be/src/cg/aarch64/aarch64_cgfunc.cpp
@@ -9336,12 +9336,15 @@ RegOperand *AArch64CGFunc::AdjustOneElementVectorOperand(PrimType oType, RegOper
 }
 
 RegOperand *AArch64CGFunc::SelectVectorFromScalar(PrimType rType, Operand *src, PrimType sType) {
-  if (!IsPrimitiveVector(rType)) {
-    RegOperand *res = &CreateRegisterOperandOfType(PTY_f64);
-    Insn *insn = &GetCG()->BuildInstruction<AArch64Insn>(MOP_xvmovdr, *res, *src);
-    GetCurBB()->AppendInsn(*insn);                                       /* move xreg to dreg */
-    static_cast<AArch64RegOperand *>(res)->SetIF64Vec();
-    return static_cast<RegOperand *>(res);
+  if (!IsPrimitiveVector(rType)) { /* 64x1 type */
+    if (src->IsConstImmediate()) {
+      RegOperand *res = &CreateRegisterOperandOfType(rType);
+      Insn *insn = &GetCG()->BuildInstruction<AArch64Insn>(MOP_xmovri64, *res, *src);
+      GetCurBB()->AppendInsn(*insn);
+      return static_cast<RegOperand *>(res);
+    } else {
+      return &SelectCopy(*src, rType, rType);
+    }
   }
   RegOperand *res = &CreateRegisterOperandOfType(rType);                 /* result operand */
   VectorRegSpec *vecSpec = GetMemoryPool()->New<VectorRegSpec>();