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1 /*
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2 * Copyright 1999-2006 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 class Canonicalizer: InstructionVisitor {
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26 private:
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27 Instruction* _canonical;
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28 int _bci;
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29
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30 void set_canonical(Value x);
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31 void set_bci(int bci) { _bci = bci; }
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32 void set_constant(jint x) { set_canonical(new Constant(new IntConstant(x))); }
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33 void set_constant(jlong x) { set_canonical(new Constant(new LongConstant(x))); }
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34 void set_constant(jfloat x) { set_canonical(new Constant(new FloatConstant(x))); }
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35 void set_constant(jdouble x) { set_canonical(new Constant(new DoubleConstant(x))); }
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36 void move_const_to_right(Op2* x);
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37 void do_Op2(Op2* x);
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38 void do_UnsafeRawOp(UnsafeRawOp* x);
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39
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40 void unsafe_raw_match(UnsafeRawOp* x,
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41 Instruction** base,
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42 Instruction** index,
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43 int* scale);
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44
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45 public:
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46 Canonicalizer(Value x, int bci) { _canonical = x; _bci = bci; if (CanonicalizeNodes) x->visit(this); }
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47 Value canonical() const { return _canonical; }
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48 int bci() const { return _bci; }
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49
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50 virtual void do_Phi (Phi* x);
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51 virtual void do_Constant (Constant* x);
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52 virtual void do_Local (Local* x);
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53 virtual void do_LoadField (LoadField* x);
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54 virtual void do_StoreField (StoreField* x);
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55 virtual void do_ArrayLength (ArrayLength* x);
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56 virtual void do_LoadIndexed (LoadIndexed* x);
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57 virtual void do_StoreIndexed (StoreIndexed* x);
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58 virtual void do_NegateOp (NegateOp* x);
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59 virtual void do_ArithmeticOp (ArithmeticOp* x);
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60 virtual void do_ShiftOp (ShiftOp* x);
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61 virtual void do_LogicOp (LogicOp* x);
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62 virtual void do_CompareOp (CompareOp* x);
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63 virtual void do_IfOp (IfOp* x);
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64 virtual void do_IfInstanceOf (IfInstanceOf* x);
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65 virtual void do_Convert (Convert* x);
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66 virtual void do_NullCheck (NullCheck* x);
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67 virtual void do_Invoke (Invoke* x);
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68 virtual void do_NewInstance (NewInstance* x);
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69 virtual void do_NewTypeArray (NewTypeArray* x);
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70 virtual void do_NewObjectArray (NewObjectArray* x);
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71 virtual void do_NewMultiArray (NewMultiArray* x);
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72 virtual void do_CheckCast (CheckCast* x);
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73 virtual void do_InstanceOf (InstanceOf* x);
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74 virtual void do_MonitorEnter (MonitorEnter* x);
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75 virtual void do_MonitorExit (MonitorExit* x);
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76 virtual void do_Intrinsic (Intrinsic* x);
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77 virtual void do_BlockBegin (BlockBegin* x);
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78 virtual void do_Goto (Goto* x);
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79 virtual void do_If (If* x);
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80 virtual void do_TableSwitch (TableSwitch* x);
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81 virtual void do_LookupSwitch (LookupSwitch* x);
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82 virtual void do_Return (Return* x);
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83 virtual void do_Throw (Throw* x);
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84 virtual void do_Base (Base* x);
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85 virtual void do_OsrEntry (OsrEntry* x);
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86 virtual void do_ExceptionObject(ExceptionObject* x);
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87 virtual void do_RoundFP (RoundFP* x);
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88 virtual void do_UnsafeGetRaw (UnsafeGetRaw* x);
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89 virtual void do_UnsafePutRaw (UnsafePutRaw* x);
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90 virtual void do_UnsafeGetObject(UnsafeGetObject* x);
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91 virtual void do_UnsafePutObject(UnsafePutObject* x);
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92 virtual void do_UnsafePrefetchRead (UnsafePrefetchRead* x);
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93 virtual void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x);
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94 virtual void do_ProfileCall (ProfileCall* x);
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95 virtual void do_ProfileCounter (ProfileCounter* x);
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96 };
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