1 files changed, 52 insertions, 0 deletions
diff --git a/lib/Target/RISCV/RISCVTargetTransformInfo.h b/lib/Target/RISCV/RISCVTargetTransformInfo.h
new file mode 100644
index 000000000000..f361b25a0c70
--- /dev/null
+++ b/lib/Target/RISCV/RISCVTargetTransformInfo.h
@@ -0,0 +1,52 @@
+//===- RISCVTargetTransformInfo.h - RISC-V specific TTI ---------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file defines a TargetTransformInfo::Concept conforming object specific
+/// to the RISC-V target machine. It uses the target's detailed information to
+/// provide more precise answers to certain TTI queries, while letting the
+/// target independent and default TTI implementations handle the rest.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_RISCV_RISCVTARGETTRANSFORMINFO_H
+#define LLVM_LIB_TARGET_RISCV_RISCVTARGETTRANSFORMINFO_H
+
+#include "RISCVSubtarget.h"
+#include "RISCVTargetMachine.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
+#include "llvm/CodeGen/BasicTTIImpl.h"
+#include "llvm/IR/Function.h"
+
+namespace llvm {
+
+class RISCVTTIImpl : public BasicTTIImplBase<RISCVTTIImpl> {
+  using BaseT = BasicTTIImplBase<RISCVTTIImpl>;
+  using TTI = TargetTransformInfo;
+
+  friend BaseT;
+
+  const RISCVSubtarget *ST;
+  const RISCVTargetLowering *TLI;
+
+  const RISCVSubtarget *getST() const { return ST; }
+  const RISCVTargetLowering *getTLI() const { return TLI; }
+
+public:
+  explicit RISCVTTIImpl(const RISCVTargetMachine *TM, const Function &F)
+      : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
+        TLI(ST->getTargetLowering()) {}
+
+  int getIntImmCost(const APInt &Imm, Type *Ty);
+  int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
+  int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
+                    Type *Ty);
+};
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_TARGET_RISCV_RISCVTARGETTRANSFORMINFO_H
+\ No newline at end of file