diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -1669,9 +1669,9 @@
   // Allocate to a register if possible, or else a stack slot.
   Register Reg;
   if (ValVT == MVT::f32 && !UseGPRForF32)
-    Reg = State.AllocateReg(ArgFPR32s, ArgFPR64s);
+    Reg = State.AllocateReg(ArgFPR32s);
   else if (ValVT == MVT::f64 && !UseGPRForF64)
-    Reg = State.AllocateReg(ArgFPR64s, ArgFPR32s);
+    Reg = State.AllocateReg(ArgFPR64s);
   else
     Reg = State.AllocateReg(ArgGPRs);
   unsigned StackOffset =