+//===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file describes the target intrinsic instructions to the code generator.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_TARGETINTRINSICINFO_H
+#define LLVM_TARGET_TARGETINTRINSICINFO_H
+
+#include "llvm/Support/Compiler.h"
+#include <string>
+
+namespace llvm {
+
+class Function;
+class Module;
+class Type;
+
+//---------------------------------------------------------------------------
+///
+/// TargetIntrinsicInfo - Interface to description of machine instruction set
+///
+class TargetIntrinsicInfo {
+ TargetIntrinsicInfo(const TargetIntrinsicInfo &) = delete;
+ void operator=(const TargetIntrinsicInfo &) = delete;
+public:
+ TargetIntrinsicInfo();
+ virtual ~TargetIntrinsicInfo();
+
+ /// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync".
+ /// The Tys and numTys parameters are for intrinsics with overloaded types
+ /// (e.g., those using iAny or fAny). For a declaration for an overloaded
+ /// intrinsic, Tys should point to an array of numTys pointers to Type,
+ /// and must provide exactly one type for each overloaded type in the
+ /// intrinsic.
+ virtual std::string getName(unsigned IID, Type **Tys = nullptr,
+ unsigned numTys = 0) const = 0;
+
+ /// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown
+ /// names.
+ virtual unsigned lookupName(const char *Name, unsigned Len) const =0;
+
+ /// Return the target intrinsic ID of a function, or 0.
+ virtual unsigned getIntrinsicID(Function *F) const;
+
+ /// Returns true if the intrinsic can be overloaded.
+ virtual bool isOverloaded(unsigned IID) const = 0;
+
+ /// Create or insert an LLVM Function declaration for an intrinsic,
+ /// and return it. The Tys and numTys are for intrinsics with overloaded
+ /// types. See above for more information.
+ virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = nullptr,
+ unsigned numTys = 0) const = 0;
+};
+
+} // End llvm namespace
+
+#endif