diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -527,7 +527,9 @@
     // RISC-V target uses at least 5 instructions to lower rounding intrinsics.
     unsigned Cost = 5;
     auto LT = getTypeLegalizationCost(RetTy);
-    return Cost * LT.first;
+    if (TLI->isOperationCustom(ISD::VP_FRINT, LT.second))
+      return Cost * LT.first;
+    break;
   }
   }