private void copyStoredIntoLoadedforBlock(IfBlock block) { if (block.end >= getPC()) { for (Map.Entry<Integer, Integer> storeEntry : block.storeRegs.entrySet()) { loadedRegs.put(storeEntry.getKey(), storeEntry.getValue()); } } }
private void copyStoredIntoLoadedforBlock(IfBlock block) { if (block.end >= getPC()) { for (Map.Entry<Integer, Integer> storeEntry : block.storeRegs.entrySet()) { loadedRegs.put(storeEntry.getKey(), storeEntry.getValue()); } } }
private void processLoad(int seen) { if (OpcodeUtils.isLoad(seen)) { int reg = RegisterUtils.getLoadReg(this, seen); loadedRegs.put(reg, getPC()); } }
private void processLoad(int seen) { if (OpcodeUtils.isLoad(seen)) { int reg = RegisterUtils.getLoadReg(this, seen); loadedRegs.put(reg, getPC()); } }
private void sawOpcodeAfterEquals(int seen) { if (seen == Const.IFEQ) { if (getBranchOffset() > 0) { state = State.SAW_IFEQ; int target = getBranchTarget(); ifBlocks.add(new IfBlock(getPC(), target)); } else { state = State.SAW_NOTHING; } } else { state = State.SAW_NOTHING; } }
private void sawOpcodeAfterEquals(int seen) { if (seen == IFEQ) { if (getBranchOffset() > 0) { state = State.SAW_IFEQ; int target = getBranchTarget(); ifBlocks.add(new IfBlock(getPC(), target)); } else { state = State.SAW_NOTHING; } } else { state = State.SAW_NOTHING; } }
private void sawOpcodeAfterNothing(int seen) { if ((seen == Const.INVOKEVIRTUAL) && "equals".equals(getNameConstantOperand()) && SignatureBuilder.SIG_OBJECT_TO_BOOLEAN.equals(getSigConstantOperand())) { state = State.SAW_EQUALS; } else if (seen == Const.IF_ICMPNE) { if (getBranchOffset() > 0) { state = State.SAW_IFEQ; int target = getBranchTarget(); ifBlocks.add(new IfBlock(getPC(), target)); } else { state = State.SAW_NOTHING; } } }
private void sawOpcodeAfterNothing(int seen) { if ((seen == INVOKEVIRTUAL) && "equals".equals(getNameConstantOperand()) && SignatureBuilder.SIG_OBJECT_TO_BOOLEAN.equals(getSigConstantOperand())) { state = State.SAW_EQUALS; } else if (seen == IF_ICMPNE) { if (getBranchOffset() > 0) { state = State.SAW_IFEQ; int target = getBranchTarget(); ifBlocks.add(new IfBlock(getPC(), target)); } else { state = State.SAW_NOTHING; } } }
private void processLoop(int seen) { if (isBranch(seen) && (getBranchOffset() < 0)) { loopLocations.set(getPC()); List<IfBlock> blocksInLoop = new ArrayList<>(4); while (it.hasNext()) { IfBlock block = it.next(); if ((target <= block.start) && (getPC() >= block.end)) { if (block.storeRegs.size() == 1) { blocksInLoop.add(block); if ((loopPos > target) && (loopPos < getPC())) { state = State.SAW_NOTHING; return;
private void processLoop(int seen) { if (isBranch(seen) && (getBranchOffset() < 0)) { loopLocations.set(getPC()); List<IfBlock> blocksInLoop = new ArrayList<>(4); while (it.hasNext()) { IfBlock block = it.next(); if ((target <= block.start) && (getPC() >= block.end)) { if (block.storeRegs.size() == 1) { blocksInLoop.add(block); if ((loopPos > target) && (loopPos < getPC())) { state = State.SAW_NOTHING; return;
private void sawOpcodeAfterBranch(int seen) { if (!ifBlocks.isEmpty()) { IfBlock block = ifBlocks.get(ifBlocks.size() - 1); if (OpcodeUtils.isStore(seen)) { int reg = RegisterUtils.getStoreReg(this, seen); if (!loadedRegs.containsKey(reg)) { LocalVariableTable lvt = getMethod().getLocalVariableTable(); String sig = ""; if (lvt != null) { LocalVariable lv = lvt.getLocalVariable(reg, getPC()); if (lv != null) { sig = lv.getSignature(); } } // ignore boolean flag stores, as this is a // relatively normal occurrence if (!Values.SIG_PRIMITIVE_BOOLEAN.equals(sig) && !Values.SIG_JAVA_LANG_BOOLEAN.equals(sig)) { block.storeRegs.put(Integer.valueOf(RegisterUtils.getStoreReg(this, seen)), Integer.valueOf(getPC())); } } } else if (OpcodeUtils.isReturn(seen)) { copyStoredIntoLoadedforBlock(block); } if (block.end <= getPC()) { state = State.SAW_NOTHING; } } }
private void sawOpcodeAfterBranch(int seen) { if (!ifBlocks.isEmpty()) { IfBlock block = ifBlocks.get(ifBlocks.size() - 1); if (OpcodeUtils.isStore(seen)) { int reg = RegisterUtils.getStoreReg(this, seen); if (!loadedRegs.containsKey(reg)) { LocalVariableTable lvt = getMethod().getLocalVariableTable(); String sig = ""; if (lvt != null) { LocalVariable lv = lvt.getLocalVariable(reg, getPC()); if (lv != null) { sig = lv.getSignature(); } } // ignore boolean flag stores, as this is a // relatively normal occurrence if (!Values.SIG_PRIMITIVE_BOOLEAN.equals(sig) && !Values.SIG_JAVA_LANG_BOOLEAN.equals(sig)) { block.storeRegs.put(Integer.valueOf(RegisterUtils.getStoreReg(this, seen)), Integer.valueOf(getPC())); } } } else if (OpcodeUtils.isReturn(seen)) { copyStoredIntoLoadedforBlock(block); } if (block.end <= getPC()) { state = State.SAW_NOTHING; } } }