@Override
public boolean perform() {
madeChanges = false;
TIntList addresses = getValidAddresses();
addresses.sort();
addresses.reverse();
for (int address : addresses.toArray()) {
madeChanges = true;
BuilderInstruction original = manipulator.getInstruction(address);
BuilderInstruction constInstruction = ConstantBuilder.buildConstant(address, manipulator);
boolean isReturn = original.getOpcode().name().startsWith("RETURN");
if (isReturn) {
manipulator.addInstruction(address, constInstruction);
} else {
manipulator.replaceInstruction(address, constInstruction);
}
constantCount++;
}
return madeChanges;
}
private void doTest(
Object value1, Object value2, Opcode opcode, String inputType, int cmpValue) {
when(itemB.getValue()).thenReturn(value1);
when(itemC.getValue()).thenReturn(value2);
when(itemB.getType()).thenReturn(inputType);
when(itemC.getType()).thenReturn(inputType);
when(instruction.getOpcode()).thenReturn(opcode);
op = (CmpOp) opFactory.create(instruction, ADDRESS);
op.execute(node, mState);
verify(mState, times(1)).assignRegister(eq(REGISTER_A), setItem.capture());
assertEquals(cmpValue, setItem.getValue().getValue());
assertEquals(CMP_TYPE, setItem.getValue().getType());
}
@Test
public void testArg2IsUnknownReturnsUnknown() {
long value1 = 1149239296L;
Object value2 = new UnknownValue();
when(itemC.isUnknown()).thenReturn(true);
when(itemB.getValue()).thenReturn(value1);
when(itemC.getValue()).thenReturn(value2);
when(itemB.getType()).thenReturn("J");
when(itemC.getType()).thenReturn("J");
when(instruction.getOpcode()).thenReturn(Opcode.CMP_LONG);
op = (CmpOp) opFactory.create(instruction, ADDRESS);
op.execute(node, mState);
Object cmpValue = new UnknownValue();
verify(mState, times(1)).assignRegister(eq(REGISTER_A), setItem.capture());
assertEquals(cmpValue.getClass(), setItem.getValue().getValue().getClass());
assertEquals(CMP_TYPE, setItem.getValue().getType());
}
