utils/TableGen/CodeGenIntrinsics.h

   1 //===- CodeGenIntrinsic.h - Intrinsic Class Wrapper ------------*- C++ -*--===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file defines a wrapper class for the 'Intrinsic' TableGen class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef CODEGEN_INTRINSIC_H
  15 #define CODEGEN_INTRINSIC_H
  16
  17 #include <string>
  18 #include <vector>
  19 #include "llvm/CodeGen/ValueTypes.h"
  20
  21 namespace llvm {
  22   class Record;
  23   class RecordKeeper;
  24   class CodeGenTarget;
  25
  26   struct CodeGenIntrinsic {
  27     Record *TheDef;            // The actual record defining this intrinsic.
  28     std::string Name;          // The name of the LLVM function "llvm.bswap.i32"
  29     std::string EnumName;      // The name of the enum "bswap_i32"
  30     std::string GCCBuiltinName;// Name of the corresponding GCC builtin, or "".
  31     std::string TargetPrefix;  // Target prefix, e.g. "ppc" for t-s intrinsics.
  32
  33     /// ArgVTs - The MVT::ValueType for each argument type.  Note that this list
  34     /// is only populated when in the context of a target .td file.  When
  35     /// building Intrinsics.td, this isn't available, because we don't know the
  36     /// target pointer size.
  37     std::vector<MVT::ValueType> ArgVTs;
  38
  39     /// ArgTypeDefs - The records for each argument type.
  40     ///
  41     std::vector<Record*> ArgTypeDefs;
  42
  43     // Memory mod/ref behavior of this intrinsic.
  44     enum {
  45       NoMem, ReadArgMem, ReadMem, WriteArgMem, WriteMem
  46     } ModRef;
  47
  48     // This is set to true if the intrinsic is overloaded by its argument
  49     // types.
  50     bool isOverloaded;
  51
  52     CodeGenIntrinsic(Record *R, CodeGenTarget *CGT);
  53   };
  54
  55   /// LoadIntrinsics - Read all of the intrinsics defined in the specified
  56   /// .td file.
  57   std::vector<CodeGenIntrinsic> LoadIntrinsics(const RecordKeeper &RC);
  58 }
  59
  60 #endif