src/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonBaseInfo.h

   1 //===-- HexagonBaseInfo.h - Top level definitions for Hexagon --*- 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 contains small standalone helper functions and enum definitions for
  11 // the Hexagon target useful for the compiler back-end and the MC libraries.
  12 // As such, it deliberately does not include references to LLVM core
  13 // code gen types, passes, etc..
  14 //
  15 //===----------------------------------------------------------------------===//
  16
  17 #ifndef HEXAGONBASEINFO_H
  18 #define HEXAGONBASEINFO_H
  19
  20 namespace llvm {
  21
  22 /// HexagonII - This namespace holds all of the target specific flags that
  23 /// instruction info tracks.
  24 ///
  25 namespace HexagonII {
  26   // *** The code below must match HexagonInstrFormat*.td *** //
  27
  28   // Insn types.
  29   // *** Must match HexagonInstrFormat*.td ***
  30   enum Type {
  31     TypePSEUDO = 0,
  32     TypeALU32  = 1,
  33     TypeCR     = 2,
  34     TypeJR     = 3,
  35     TypeJ      = 4,
  36     TypeLD     = 5,
  37     TypeST     = 6,
  38     TypeSYSTEM = 7,
  39     TypeXTYPE  = 8,
  40     TypeMEMOP  = 9,
  41     TypeNV     = 10,
  42     TypePREFIX = 30, // Such as extenders.
  43     TypeMARKER = 31  // Such as end of a HW loop.
  44   };
  45
  46
  47
  48   // MCInstrDesc TSFlags
  49   // *** Must match HexagonInstrFormat*.td ***
  50   enum {
  51     // This 5-bit field describes the insn type.
  52     TypePos  = 0,
  53     TypeMask = 0x1f,
  54
  55     // Solo instructions.
  56     SoloPos  = 5,
  57     SoloMask = 0x1,
  58
  59     // Predicated instructions.
  60     PredicatedPos  = 6,
  61     PredicatedMask = 0x1
  62   };
  63
  64   // *** The code above must match HexagonInstrFormat*.td *** //
  65
  66 } // End namespace HexagonII.
  67
  68 } // End namespace llvm.
  69
  70 #endif