utils/TableGen/NeonEmitter.h

   1 //===- NeonEmitter.h - Generate arm_neon.h for use with clang ---*- 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 tablegen backend is responsible for emitting arm_neon.h, which includes
  11 // a declaration and definition of each function specified by the ARM NEON
  12 // compiler interface.  See ARM document DUI0348B.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #ifndef NEON_EMITTER_H
  17 #define NEON_EMITTER_H
  18
  19 #include "Record.h"
  20 #include "TableGenBackend.h"
  21 #include "llvm/ADT/DenseMap.h"
  22 #include "llvm/ADT/StringMap.h"
  23
  24 enum OpKind {
  25   OpNone,
  26   OpAdd,
  27   OpSub,
  28   OpMul,
  29   OpMla,
  30   OpMls,
  31   OpMulN,
  32   OpMlaN,
  33   OpMlsN,
  34   OpEq,
  35   OpGe,
  36   OpLe,
  37   OpGt,
  38   OpLt,
  39   OpNeg,
  40   OpNot,
  41   OpAnd,
  42   OpOr,
  43   OpXor,
  44   OpAndNot,
  45   OpOrNot,
  46   OpCast,
  47   OpConcat,
  48   OpDup,
  49   OpHi,
  50   OpLo,
  51   OpSelect,
  52   OpRev16,
  53   OpRev32,
  54   OpRev64
  55 };
  56
  57 enum ClassKind {
  58   ClassNone,
  59   ClassI,
  60   ClassS,
  61   ClassW,
  62   ClassB
  63 };
  64
  65 namespace llvm {
  66
  67   class NeonEmitter : public TableGenBackend {
  68     RecordKeeper &Records;
  69     StringMap<OpKind> OpMap;
  70     DenseMap<Record*, ClassKind> ClassMap;
  71
  72   public:
  73     NeonEmitter(RecordKeeper &R) : Records(R) {
  74       OpMap["OP_NONE"]  = OpNone;
  75       OpMap["OP_ADD"]   = OpAdd;
  76       OpMap["OP_SUB"]   = OpSub;
  77       OpMap["OP_MUL"]   = OpMul;
  78       OpMap["OP_MLA"]   = OpMla;
  79       OpMap["OP_MLS"]   = OpMls;
  80       OpMap["OP_MUL_N"] = OpMulN;
  81       OpMap["OP_MLA_N"] = OpMlaN;
  82       OpMap["OP_MLS_N"] = OpMlsN;
  83       OpMap["OP_EQ"]    = OpEq;
  84       OpMap["OP_GE"]    = OpGe;
  85       OpMap["OP_LE"]    = OpLe;
  86       OpMap["OP_GT"]    = OpGt;
  87       OpMap["OP_LT"]    = OpLt;
  88       OpMap["OP_NEG"]   = OpNeg;
  89       OpMap["OP_NOT"]   = OpNot;
  90       OpMap["OP_AND"]   = OpAnd;
  91       OpMap["OP_OR"]    = OpOr;
  92       OpMap["OP_XOR"]   = OpXor;
  93       OpMap["OP_ANDN"]  = OpAndNot;
  94       OpMap["OP_ORN"]   = OpOrNot;
  95       OpMap["OP_CAST"]  = OpCast;
  96       OpMap["OP_CONC"]  = OpConcat;
  97       OpMap["OP_HI"]    = OpHi;
  98       OpMap["OP_LO"]    = OpLo;
  99       OpMap["OP_DUP"]   = OpDup;
 100       OpMap["OP_SEL"]   = OpSelect;
 101       OpMap["OP_REV16"] = OpRev16;
 102       OpMap["OP_REV32"] = OpRev32;
 103       OpMap["OP_REV64"] = OpRev64;
 104
 105       Record *SI = R.getClass("SInst");
 106       Record *II = R.getClass("IInst");
 107       Record *WI = R.getClass("WInst");
 108       ClassMap[SI] = ClassS;
 109       ClassMap[II] = ClassI;
 110       ClassMap[WI] = ClassW;
 111     }
 112
 113     // run - Emit arm_neon.h.inc
 114     void run(raw_ostream &o);
 115
 116     // runHeader - Emit all the __builtin prototypes used in arm_neon.h
 117     void runHeader(raw_ostream &o);
 118   };
 119
 120 } // End llvm namespace
 121
 122 #endif