1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * you may not use this file except in compliance with the License. 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * You may obtain a copy of the License at 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage com.android.dx.rop.code; 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.type.StdTypeList; 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.type.Type; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.type.TypeList; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.type.TypeBearer; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.cst.Constant; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Plain instruction, which has no embedded data and which cannot possibly 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * throw an exception. 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class PlainInsn 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project extends Insn { 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs an instance. 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3499409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param opcode {@code non-null;} the opcode 3599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param position {@code non-null;} source position 3699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param result {@code null-ok;} spec for the result, if any 3799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param sources {@code non-null;} specs for all the sources 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public PlainInsn(Rop opcode, SourcePosition position, 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpec result, RegisterSpecList sources) { 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(opcode, position, result, sources); 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project switch (opcode.getBranchingness()) { 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case Rop.BRANCH_SWITCH: 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project case Rop.BRANCH_THROW: { 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new IllegalArgumentException("bogus branchingness"); 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (result != null && opcode.getBranchingness() != Rop.BRANCH_NONE) { 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // move-result-pseudo is required here 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new IllegalArgumentException 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ("can't mix branchingness with result"); 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs a single-source instance. 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 6099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param opcode {@code non-null;} the opcode 6199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param position {@code non-null;} source position 6299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param result {@code null-ok;} spec for the result, if any 6399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param source {@code non-null;} spec for the source 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public PlainInsn(Rop opcode, SourcePosition position, RegisterSpec result, 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpec source) { 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project this(opcode, position, result, RegisterSpecList.make(source)); 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public TypeList getCatches() { 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return StdTypeList.EMPTY; 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void accept(Visitor visitor) { 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project visitor.visitPlainInsn(this); 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Insn withAddedCatch(Type type) { 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new UnsupportedOperationException("unsupported"); 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Insn withRegisterOffset(int delta) { 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new PlainInsn(getOpcode(), getPosition(), 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getResult().withOffset(delta), 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getSources().withOffset(delta)); 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Insn withLastSourceLiteral() { 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList sources = getSources(); 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int szSources = sources.size(); 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (szSources == 0) { 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return this; 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project TypeBearer lastType = sources.get(szSources - 1).getTypeBearer(); 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!lastType.isConstant()) { 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return this; 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Constant cst = (Constant) lastType; 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList newSources = sources.withoutLast(); 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Rop newRop; 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project try { 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project newRop = Rops.ropFor(getOpcode().getOpcode(), 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getResult(), newSources, (Constant)lastType); 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } catch (IllegalArgumentException ex) { 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // There's no rop for this case 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return this; 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new PlainCstInsn(newRop, getPosition(), 126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project getResult(), newSources, cst); 127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Insn withNewRegisters(RegisterSpec result, 133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList sources) { 134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new PlainInsn(getOpcode(), getPosition(), 136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project result, 137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sources); 138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 141