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
@@ -15197,6 +15197,12 @@
     }
   }
 
+  if (LocVT == MVT::f16) {
+    unsigned Offset2 = State.AllocateStack(2, Align(2));
+    State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset2, LocVT, LocInfo));
+    return false;
+  }
+
   if (LocVT == MVT::i32 || LocVT == MVT::f32) {
     unsigned Offset4 = State.AllocateStack(4, Align(4));
     State.addLoc(CCValAssign::getMem(ValNo, ValVT, Offset4, LocVT, LocInfo));