1 files changed, 14 insertions, 3 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVMachineFunctionInfo.h b/llvm/lib/Target/RISCV/RISCVMachineFunctionInfo.h
index 433a3fb1543..2fea3a1bdd2 100644
--- a/llvm/lib/Target/RISCV/RISCVMachineFunctionInfo.h
+++ b/llvm/lib/Target/RISCV/RISCVMachineFunctionInfo.h
@@ -14,6 +14,7 @@
 #ifndef LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H
 #define LLVM_LIB_TARGET_RISCV_RISCVMACHINEFUNCTIONINFO_H
 
+#include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 
 namespace llvm {
@@ -21,22 +22,32 @@ namespace llvm {
 /// RISCVMachineFunctionInfo - This class is derived from MachineFunctionInfo
 /// and contains private RISCV-specific information for each MachineFunction.
 class RISCVMachineFunctionInfo : public MachineFunctionInfo {
-
+private:
+  MachineFunction &MF;
   /// FrameIndex for start of varargs area
   int VarArgsFrameIndex = 0;
   /// Size of the save area used for varargs
   int VarArgsSaveSize = 0;
+  /// FrameIndex used for transferring values between 64-bit FPRs and a pair
+  /// of 32-bit GPRs via the stack.
+  int MoveF64FrameIndex = -1;
 
 public:
-  RISCVMachineFunctionInfo() = default;
+  //  RISCVMachineFunctionInfo() = default;
 
-  explicit RISCVMachineFunctionInfo(MachineFunction &MF) {}
+  RISCVMachineFunctionInfo(MachineFunction &MF) : MF(MF) {}
 
   int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
   void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
 
   unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; }
   void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; }
+
+  int getMoveF64FrameIndex() {
+    if (MoveF64FrameIndex == -1)
+      MoveF64FrameIndex = MF.getFrameInfo().CreateStackObject(8, 8, false);
+    return MoveF64FrameIndex;
+  }
 };
 
 } // end namespace llvm