1 /*
  2  * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
  8  *
  9  * This code is distributed in the hope that it will be useful, but WITHOUT
 10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 12  * version 2 for more details (a copy is included in the LICENSE file that
 13  * accompanied this code).
 14  *
 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 18  *
 19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 20  * or visit www.oracle.com if you need additional information or have any
 21  * questions.
 22  *
 23  */
 24 
 25 #ifndef SHARE_C1_C1_CANONICALIZER_HPP
 26 #define SHARE_C1_C1_CANONICALIZER_HPP
 27 
 28 #include "c1/c1_Instruction.hpp"
 29 
 30 class Canonicalizer: InstructionVisitor {
 31  private:
 32   Compilation *_compilation;
 33   Instruction* _canonical;
 34   int _bci;
 35 
 36   Compilation *compilation()                     { return _compilation; }
 37   void set_canonical(Value x);
 38   void set_bci(int bci)                          { _bci = bci; }
 39   void set_constant(jint x)                      { set_canonical(new Constant(new IntConstant(x))); }
 40   void set_constant(jlong x)                     { set_canonical(new Constant(new LongConstant(x))); }
 41   void set_constant(jfloat x)                    { set_canonical(new Constant(new FloatConstant(x))); }
 42   void set_constant(jdouble x)                   { set_canonical(new Constant(new DoubleConstant(x))); }
 43 #ifdef _WINDOWS
 44   // jint is defined as long in jni_md.h, so convert from int to jint
 45   void set_constant(int x)                       { set_constant((jint)x); }
 46 #endif
 47   void move_const_to_right(Op2* x);
 48   void do_Op2(Op2* x);
 49 
 50  public:
 51   Canonicalizer(Compilation* c, Value x, int bci) : _compilation(c), _canonical(x), _bci(bci) {
 52     NOT_PRODUCT(x->set_printable_bci(bci));
 53     if (CanonicalizeNodes) x->visit(this);
 54   }
 55   Value canonical() const                        { return _canonical; }
 56   int bci() const                                { return _bci; }
 57 
 58   virtual void do_Phi            (Phi*             x);
 59   virtual void do_Constant       (Constant*        x);
 60   virtual void do_Local          (Local*           x);
 61   virtual void do_LoadField      (LoadField*       x);
 62   virtual void do_StoreField     (StoreField*      x);
 63   virtual void do_ArrayLength    (ArrayLength*     x);
 64   virtual void do_LoadIndexed    (LoadIndexed*     x);
 65   virtual void do_StoreIndexed   (StoreIndexed*    x);
 66   virtual void do_NegateOp       (NegateOp*        x);
 67   virtual void do_ArithmeticOp   (ArithmeticOp*    x);
 68   virtual void do_ShiftOp        (ShiftOp*         x);
 69   virtual void do_LogicOp        (LogicOp*         x);
 70   virtual void do_CompareOp      (CompareOp*       x);
 71   virtual void do_IfOp           (IfOp*            x);
 72   virtual void do_Convert        (Convert*         x);
 73   virtual void do_NullCheck      (NullCheck*       x);
 74   virtual void do_TypeCast       (TypeCast*        x);
 75   virtual void do_Invoke         (Invoke*          x);
 76   virtual void do_NewInstance    (NewInstance*     x);
 77   virtual void do_NewInlineTypeInstance(NewInlineTypeInstance* x);
 78   virtual void do_NewTypeArray   (NewTypeArray*    x);
 79   virtual void do_NewObjectArray (NewObjectArray*  x);
 80   virtual void do_NewMultiArray  (NewMultiArray*   x);
 81   virtual void do_Deoptimize     (Deoptimize*      x);
 82   virtual void do_CheckCast      (CheckCast*       x);
 83   virtual void do_InstanceOf     (InstanceOf*      x);
 84   virtual void do_MonitorEnter   (MonitorEnter*    x);
 85   virtual void do_MonitorExit    (MonitorExit*     x);
 86   virtual void do_Intrinsic      (Intrinsic*       x);
 87   virtual void do_BlockBegin     (BlockBegin*      x);
 88   virtual void do_Goto           (Goto*            x);
 89   virtual void do_If             (If*              x);
 90   virtual void do_TableSwitch    (TableSwitch*     x);
 91   virtual void do_LookupSwitch   (LookupSwitch*    x);
 92   virtual void do_Return         (Return*          x);
 93   virtual void do_Throw          (Throw*           x);
 94   virtual void do_Base           (Base*            x);
 95   virtual void do_OsrEntry       (OsrEntry*        x);
 96   virtual void do_ExceptionObject(ExceptionObject* x);
 97   virtual void do_RoundFP        (RoundFP*         x);
 98   virtual void do_UnsafeGet      (UnsafeGet*       x);
 99   virtual void do_UnsafePut      (UnsafePut*       x);
100   virtual void do_UnsafeGetAndSet(UnsafeGetAndSet* x);
101   virtual void do_ProfileCall    (ProfileCall*     x);
102   virtual void do_ProfileReturnType (ProfileReturnType*  x);
103   virtual void do_ProfileACmpTypes(ProfileACmpTypes*  x);
104   virtual void do_ProfileInvoke  (ProfileInvoke*   x);
105   virtual void do_RuntimeCall    (RuntimeCall*     x);
106   virtual void do_MemBar         (MemBar*          x);
107   virtual void do_RangeCheckPredicate(RangeCheckPredicate* x);
108 #ifdef ASSERT
109   virtual void do_Assert         (Assert*          x);
110 #endif
111 };
112 
113 #endif // SHARE_C1_C1_CANONICALIZER_HPP