lib/Target/CellSPU/SPU.h

   1 //===-- SPU.h - Top-level interface for Cell SPU Target ----------*- 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 the entry points for global functions defined in the LLVM
  11 // Cell SPU back-end.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_TARGET_IBMCELLSPU_H
  16 #define LLVM_TARGET_IBMCELLSPU_H
  17
  18 #include "llvm/Support/DataTypes.h"
  19
  20 namespace llvm {
  21   class SPUTargetMachine;
  22   class FunctionPass;
  23   class raw_ostream;
  24
  25   FunctionPass *createSPUISelDag(SPUTargetMachine &TM);
  26   FunctionPass *createSPUAsmPrinterPass(raw_ostream &o,
  27                                         SPUTargetMachine &tm,
  28                                         bool fast, bool verbose);
  29
  30   /*--== Utility functions/predicates/etc used all over the place: --==*/
  31   //! Predicate test for a signed 10-bit value
  32   /*!
  33     \param Value The input value to be tested
  34
  35     This predicate tests for a signed 10-bit value, returning the 10-bit value
  36     as a short if true.
  37    */
  38   template<typename T>
  39   inline bool isS10Constant(T Value);
  40
  41   template<>
  42   inline bool isS10Constant<short>(short Value) {
  43     int SExtValue = ((int) Value << (32 - 10)) >> (32 - 10);
  44     return ((Value > 0 && Value <= (1 << 9) - 1)
  45             || (Value < 0 && (short) SExtValue == Value));
  46   }
  47
  48   template<>
  49   inline bool isS10Constant<int>(int Value) {
  50     return (Value >= -(1 << 9) && Value <= (1 << 9) - 1);
  51   }
  52
  53   template<>
  54   inline bool isS10Constant<uint32_t>(uint32_t Value) {
  55     return (Value <= ((1 << 9) - 1));
  56   }
  57
  58   template<>
  59   inline bool isS10Constant<int64_t>(int64_t Value) {
  60     return (Value >= -(1 << 9) && Value <= (1 << 9) - 1);
  61   }
  62
  63   template<>
  64   inline bool isS10Constant<uint64_t>(uint64_t Value) {
  65     return (Value <= ((1 << 9) - 1));
  66   }
  67
  68   //! Predicate test for an unsigned 10-bit value
  69   /*!
  70     \param Value The input value to be tested
  71
  72     This predicate tests for an unsigned 10-bit value, returning the 10-bit value
  73     as a short if true.
  74    */
  75   inline bool isU10Constant(short Value) {
  76     return (Value == (Value & 0x3ff));
  77   }
  78
  79   inline bool isU10Constant(int Value) {
  80     return (Value == (Value & 0x3ff));
  81   }
  82
  83   inline bool isU10Constant(uint32_t Value) {
  84     return (Value == (Value & 0x3ff));
  85   }
  86
  87   inline bool isU10Constant(int64_t Value) {
  88     return (Value == (Value & 0x3ff));
  89   }
  90
  91   inline bool isU10Constant(uint64_t Value) {
  92     return (Value == (Value & 0x3ff));
  93   }
  94 }
  95
  96 // Defines symbolic names for the SPU instructions.
  97 //
  98 #include "SPUGenInstrNames.inc"
  99
 100 #endif /* LLVM_TARGET_IBMCELLSPU_H */