1 //===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the target intrinsic instructions to the code generator.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_TARGET_TARGETINTRINSICINFO_H
15 #define LLVM_TARGET_TARGETINTRINSICINFO_H
25 //---------------------------------------------------------------------------
27 /// TargetIntrinsicInfo - Interface to description of machine instruction set
29 class TargetIntrinsicInfo {
30 TargetIntrinsicInfo(const TargetIntrinsicInfo &); // DO NOT IMPLEMENT
31 void operator=(const TargetIntrinsicInfo &); // DO NOT IMPLEMENT
33 TargetIntrinsicInfo();
34 virtual ~TargetIntrinsicInfo();
36 /// Return the name of a target intrinsic, e.g. "llvm.bfin.ssync".
37 /// The Tys and numTys parameters are for intrinsics with overloaded types
38 /// (e.g., those using iAny or fAny). For a declaration for an overloaded
39 /// intrinsic, Tys should point to an array of numTys pointers to Type,
40 /// and must provide exactly one type for each overloaded type in the
42 virtual std::string getName(unsigned IID, Type **Tys = 0,
43 unsigned numTys = 0) const = 0;
45 /// Look up target intrinsic by name. Return intrinsic ID or 0 for unknown
47 virtual unsigned lookupName(const char *Name, unsigned Len) const =0;
49 /// Return the target intrinsic ID of a function, or 0.
50 virtual unsigned getIntrinsicID(Function *F) const;
52 /// Returns true if the intrinsic can be overloaded.
53 virtual bool isOverloaded(unsigned IID) const = 0;
55 /// Create or insert an LLVM Function declaration for an intrinsic,
56 /// and return it. The Tys and numTys are for intrinsics with overloaded
57 /// types. See above for more information.
58 virtual Function *getDeclaration(Module *M, unsigned ID, Type **Tys = 0,
59 unsigned numTys = 0) const = 0;
62 } // End llvm namespace