1 files changed, 75 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVSubtarget.h b/llvm/lib/Target/RISCV/RISCVSubtarget.h
new file mode 100644
index 00000000000..657b0e65620
--- /dev/null
+++ b/llvm/lib/Target/RISCV/RISCVSubtarget.h
@@ -0,0 +1,75 @@
+//===-- RISCVSubtarget.h - Define Subtarget for the RISCV -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the RISCV specific subclass of TargetSubtargetInfo.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_RISCV_RISCVSUBTARGET_H
+#define LLVM_LIB_TARGET_RISCV_RISCVSUBTARGET_H
+
+#include "RISCVFrameLowering.h"
+#include "RISCVISelLowering.h"
+#include "RISCVInstrInfo.h"
+#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
+
+#define GET_SUBTARGETINFO_HEADER
+#include "RISCVGenSubtargetInfo.inc"
+
+namespace llvm {
+class StringRef;
+
+class RISCVSubtarget : public RISCVGenSubtargetInfo {
+  virtual void anchor();
+  bool HasRV64 = false;
+  unsigned XLen = 32;
+  MVT XLenVT = MVT::i32;
+  RISCVFrameLowering FrameLowering;
+  RISCVInstrInfo InstrInfo;
+  RISCVRegisterInfo RegInfo;
+  RISCVTargetLowering TLInfo;
+  SelectionDAGTargetInfo TSInfo;
+
+  /// Initializes using the passed in CPU and feature strings so that we can
+  /// use initializer lists for subtarget initialization.
+  RISCVSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS,
+                                                  bool Is64Bit);
+
+public:
+  // Initializes the data members to match that of the specified triple.
+  RISCVSubtarget(const Triple &TT, const std::string &CPU,
+                 const std::string &FS, const TargetMachine &TM);
+
+  // Parses features string setting specified subtarget options. The
+  // definition of this function is auto-generated by tblgen.
+  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
+
+  const RISCVFrameLowering *getFrameLowering() const override {
+    return &FrameLowering;
+  }
+  const RISCVInstrInfo *getInstrInfo() const override { return &InstrInfo; }
+  const RISCVRegisterInfo *getRegisterInfo() const override {
+    return &RegInfo;
+  }
+  const RISCVTargetLowering *getTargetLowering() const override {
+    return &TLInfo;
+  }
+  const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
+    return &TSInfo;
+  }
+  bool is64Bit() const { return HasRV64; }
+  MVT getXLenVT() const { return XLenVT; }
+  unsigned getXLen() const { return XLen; }
+};
+} // End llvm namespace
+
+#endif