Examples with SubExpr soot.jimple.SubExpr used on opensource projects

Example 6 with SubExpr

use of soot.jimple.SubExpr in project soot by Sable.

the class SimplifyExpressions method getResult.

public NumericConstant getResult(BinopExpr binop) {
    if (DEBUG)
        System.out.println("Binop expr" + binop);
    Value leftOp = binop.getOp1();
    Value rightOp = binop.getOp2();
    int op = 0;
    if (binop instanceof AddExpr) {
        op = 1;
    } else if (binop instanceof SubExpr || binop instanceof DCmpExpr || binop instanceof DCmpgExpr || binop instanceof DCmplExpr) {
        op = 2;
    } else if (binop instanceof MulExpr) {
        op = 3;
    }
    if (op == 0) {
        if (DEBUG) {
            System.out.println("not add sub or mult");
            System.out.println(binop.getClass().getName());
        }
        return null;
    }
    NumericConstant constant = null;
    if (leftOp instanceof LongConstant && rightOp instanceof LongConstant) {
        if (DEBUG)
            System.out.println("long constants!!");
        if (op == 1)
            constant = ((LongConstant) leftOp).add((LongConstant) rightOp);
        else if (op == 2)
            constant = ((LongConstant) leftOp).subtract((LongConstant) rightOp);
        else if (op == 3)
            constant = ((LongConstant) leftOp).multiply((LongConstant) rightOp);
    } else if (leftOp instanceof DoubleConstant && rightOp instanceof DoubleConstant) {
        if (DEBUG)
            System.out.println("double constants!!");
        if (op == 1)
            constant = ((DoubleConstant) leftOp).add((DoubleConstant) rightOp);
        else if (op == 2)
            constant = ((DoubleConstant) leftOp).subtract((DoubleConstant) rightOp);
        else if (op == 3)
            constant = ((DoubleConstant) leftOp).multiply((DoubleConstant) rightOp);
    } else if (leftOp instanceof FloatConstant && rightOp instanceof FloatConstant) {
        if (DEBUG)
            System.out.println("Float constants!!");
        if (op == 1)
            constant = ((FloatConstant) leftOp).add((FloatConstant) rightOp);
        else if (op == 2)
            constant = ((FloatConstant) leftOp).subtract((FloatConstant) rightOp);
        else if (op == 3)
            constant = ((FloatConstant) leftOp).multiply((FloatConstant) rightOp);
    } else if (leftOp instanceof IntConstant && rightOp instanceof IntConstant) {
        if (DEBUG)
            System.out.println("Integer constants!!");
        if (op == 1)
            constant = ((IntConstant) leftOp).add((IntConstant) rightOp);
        else if (op == 2)
            constant = ((IntConstant) leftOp).subtract((IntConstant) rightOp);
        else if (op == 3)
            constant = ((IntConstant) leftOp).multiply((IntConstant) rightOp);
    }
    return constant;
}

Example 7 with SubExpr

use of soot.jimple.SubExpr in project soot by Sable.

the class UseChecker method handleBinopExpr.

private void handleBinopExpr(BinopExpr be, Stmt stmt, Type tlhs) {
    Value opl = be.getOp1(), opr = be.getOp2();
    Type tl = AugEvalFunction.eval_(this.tg, opl, stmt, this.jb), tr = AugEvalFunction.eval_(this.tg, opr, stmt, this.jb);
    if (be instanceof AddExpr || be instanceof SubExpr || be instanceof MulExpr || be instanceof DivExpr || be instanceof RemExpr || be instanceof GeExpr || be instanceof GtExpr || be instanceof LeExpr || be instanceof LtExpr || be instanceof ShlExpr || be instanceof ShrExpr || be instanceof UshrExpr) {
        if (tlhs instanceof IntegerType) {
            be.setOp1(this.uv.visit(opl, IntType.v(), stmt));
            be.setOp2(this.uv.visit(opr, IntType.v(), stmt));
        }
    } else if (be instanceof CmpExpr || be instanceof CmpgExpr || be instanceof CmplExpr) {
    // No checks in the original assigner
    } else if (be instanceof AndExpr || be instanceof OrExpr || be instanceof XorExpr) {
        be.setOp1(this.uv.visit(opl, tlhs, stmt));
        be.setOp2(this.uv.visit(opr, tlhs, stmt));
    } else if (be instanceof EqExpr || be instanceof NeExpr) {
        if (tl instanceof BooleanType && tr instanceof BooleanType) {
        } else if (tl instanceof Integer1Type || tr instanceof Integer1Type) {
        } else if (tl instanceof IntegerType) {
            be.setOp1(this.uv.visit(opl, IntType.v(), stmt));
            be.setOp2(this.uv.visit(opr, IntType.v(), stmt));
        }
    }
}

Example 8 with SubExpr

use of soot.jimple.SubExpr in project soot by Sable.

the class ConstraintChecker method caseAssignStmt.

public void caseAssignStmt(AssignStmt stmt) {
    Value l = stmt.getLeftOp();
    Value r = stmt.getRightOp();
    TypeNode left = null;
    TypeNode right = null;
    if (l instanceof ArrayRef) {
        ArrayRef ref = (ArrayRef) l;
        Type baset = ((Local) ref.getBase()).getType();
        if (baset instanceof ArrayType) {
            ArrayType base = (ArrayType) baset;
            Value index = ref.getIndex();
            if ((base.numDimensions == 1) && (base.baseType instanceof IntegerType)) {
                left = ClassHierarchy.v().typeNode(base.baseType);
            }
            if (index instanceof Local) {
                if (!ClassHierarchy.v().typeNode(((Local) index).getType()).hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        ref.setIndex(insertCast((Local) index, IntType.v(), stmt));
                    } else {
                        error("Type Error(5)");
                    }
                }
            }
        }
    } else if (l instanceof Local) {
        if (((Local) l).getType() instanceof IntegerType) {
            left = ClassHierarchy.v().typeNode(((Local) l).getType());
        }
    } else if (l instanceof InstanceFieldRef) {
        InstanceFieldRef ref = (InstanceFieldRef) l;
        if (ref.getFieldRef().type() instanceof IntegerType) {
            left = ClassHierarchy.v().typeNode(ref.getFieldRef().type());
        }
    } else if (l instanceof StaticFieldRef) {
        StaticFieldRef ref = (StaticFieldRef) l;
        if (ref.getFieldRef().type() instanceof IntegerType) {
            left = ClassHierarchy.v().typeNode(ref.getFieldRef().type());
        }
    } else {
        throw new RuntimeException("Unhandled assignment left hand side type: " + l.getClass());
    }
    if (r instanceof ArrayRef) {
        ArrayRef ref = (ArrayRef) r;
        Type baset = ((Local) ref.getBase()).getType();
        if (!(baset instanceof NullType)) {
            ArrayType base = (ArrayType) baset;
            Value index = ref.getIndex();
            if ((base.numDimensions == 1) && (base.baseType instanceof IntegerType)) {
                right = ClassHierarchy.v().typeNode(base.baseType);
            }
            if (index instanceof Local) {
                if (!ClassHierarchy.v().typeNode(((Local) index).getType()).hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        ref.setIndex(insertCast((Local) index, IntType.v(), stmt));
                    } else {
                        error("Type Error(6)");
                    }
                }
            }
        }
    } else if (r instanceof DoubleConstant) {
    } else if (r instanceof FloatConstant) {
    } else if (r instanceof IntConstant) {
        int value = ((IntConstant) r).value;
        if (value < -32768) {
            right = ClassHierarchy.v().INT;
        } else if (value < -128) {
            right = ClassHierarchy.v().SHORT;
        } else if (value < 0) {
            right = ClassHierarchy.v().BYTE;
        } else if (value < 2) {
            right = ClassHierarchy.v().R0_1;
        } else if (value < 128) {
            right = ClassHierarchy.v().R0_127;
        } else if (value < 32768) {
            right = ClassHierarchy.v().R0_32767;
        } else if (value < 65536) {
            right = ClassHierarchy.v().CHAR;
        } else {
            right = ClassHierarchy.v().INT;
        }
    } else if (r instanceof LongConstant) {
    } else if (r instanceof NullConstant) {
    } else if (r instanceof StringConstant) {
    } else if (r instanceof ClassConstant) {
    } else if (r instanceof BinopExpr) {
        // ******** BINOP EXPR ********
        BinopExpr be = (BinopExpr) r;
        Value lv = be.getOp1();
        Value rv = be.getOp2();
        TypeNode lop = null;
        TypeNode rop = null;
        // ******** LEFT ********
        if (lv instanceof Local) {
            if (((Local) lv).getType() instanceof IntegerType) {
                lop = ClassHierarchy.v().typeNode(((Local) lv).getType());
            }
        } else if (lv instanceof DoubleConstant) {
        } else if (lv instanceof FloatConstant) {
        } else if (lv instanceof IntConstant) {
            int value = ((IntConstant) lv).value;
            if (value < -32768) {
                lop = ClassHierarchy.v().INT;
            } else if (value < -128) {
                lop = ClassHierarchy.v().SHORT;
            } else if (value < 0) {
                lop = ClassHierarchy.v().BYTE;
            } else if (value < 2) {
                lop = ClassHierarchy.v().R0_1;
            } else if (value < 128) {
                lop = ClassHierarchy.v().R0_127;
            } else if (value < 32768) {
                lop = ClassHierarchy.v().R0_32767;
            } else if (value < 65536) {
                lop = ClassHierarchy.v().CHAR;
            } else {
                lop = ClassHierarchy.v().INT;
            }
        } else if (lv instanceof LongConstant) {
        } else if (lv instanceof NullConstant) {
        } else if (lv instanceof StringConstant) {
        } else if (lv instanceof ClassConstant) {
        } else {
            throw new RuntimeException("Unhandled binary expression left operand type: " + lv.getClass());
        }
        // ******** RIGHT ********
        if (rv instanceof Local) {
            if (((Local) rv).getType() instanceof IntegerType) {
                rop = ClassHierarchy.v().typeNode(((Local) rv).getType());
            }
        } else if (rv instanceof DoubleConstant) {
        } else if (rv instanceof FloatConstant) {
        } else if (rv instanceof IntConstant) {
            int value = ((IntConstant) rv).value;
            if (value < -32768) {
                rop = ClassHierarchy.v().INT;
            } else if (value < -128) {
                rop = ClassHierarchy.v().SHORT;
            } else if (value < 0) {
                rop = ClassHierarchy.v().BYTE;
            } else if (value < 2) {
                rop = ClassHierarchy.v().R0_1;
            } else if (value < 128) {
                rop = ClassHierarchy.v().R0_127;
            } else if (value < 32768) {
                rop = ClassHierarchy.v().R0_32767;
            } else if (value < 65536) {
                rop = ClassHierarchy.v().CHAR;
            } else {
                rop = ClassHierarchy.v().INT;
            }
        } else if (rv instanceof LongConstant) {
        } else if (rv instanceof NullConstant) {
        } else if (rv instanceof StringConstant) {
        } else if (rv instanceof ClassConstant) {
        } else {
            throw new RuntimeException("Unhandled binary expression right operand type: " + rv.getClass());
        }
        if ((be instanceof AddExpr) || (be instanceof SubExpr) || (be instanceof MulExpr) || (be instanceof DivExpr) || (be instanceof RemExpr)) {
            if (lop != null && rop != null) {
                if (!lop.hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        be.setOp1(insertCast(be.getOp1(), getTypeForCast(lop), IntType.v(), stmt));
                    } else {
                        error("Type Error(7)");
                    }
                }
                if (!rop.hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        be.setOp2(insertCast(be.getOp2(), getTypeForCast(rop), IntType.v(), stmt));
                    } else {
                        error("Type Error(8)");
                    }
                }
            }
            right = ClassHierarchy.v().INT;
        } else if ((be instanceof AndExpr) || (be instanceof OrExpr) || (be instanceof XorExpr)) {
            if (lop != null && rop != null) {
                TypeNode lca = lop.lca_1(rop);
                if (lca == ClassHierarchy.v().TOP) {
                    if (fix) {
                        if (!lop.hasAncestor_1(ClassHierarchy.v().INT)) {
                            be.setOp1(insertCast(be.getOp1(), getTypeForCast(lop), getTypeForCast(rop), stmt));
                            lca = rop;
                        }
                        if (!rop.hasAncestor_1(ClassHierarchy.v().INT)) {
                            be.setOp2(insertCast(be.getOp2(), getTypeForCast(rop), getTypeForCast(lop), stmt));
                            lca = lop;
                        }
                    } else {
                        error("Type Error(11)");
                    }
                }
                right = lca;
            }
        } else if (be instanceof ShlExpr) {
            if (lop != null) {
                if (!lop.hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        be.setOp1(insertCast(be.getOp1(), getTypeForCast(lop), IntType.v(), stmt));
                    } else {
                        error("Type Error(9)");
                    }
                }
            }
            if (!rop.hasAncestor_1(ClassHierarchy.v().INT)) {
                if (fix) {
                    be.setOp2(insertCast(be.getOp2(), getTypeForCast(rop), IntType.v(), stmt));
                } else {
                    error("Type Error(10)");
                }
            }
            right = (lop == null) ? null : ClassHierarchy.v().INT;
        } else if ((be instanceof ShrExpr) || (be instanceof UshrExpr)) {
            if (lop != null) {
                if (!lop.hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        be.setOp1(insertCast(be.getOp1(), getTypeForCast(lop), ByteType.v(), stmt));
                        lop = ClassHierarchy.v().BYTE;
                    } else {
                        error("Type Error(9)");
                    }
                }
            }
            if (!rop.hasAncestor_1(ClassHierarchy.v().INT)) {
                if (fix) {
                    be.setOp2(insertCast(be.getOp2(), getTypeForCast(rop), IntType.v(), stmt));
                } else {
                    error("Type Error(10)");
                }
            }
            right = lop;
        } else if ((be instanceof CmpExpr) || (be instanceof CmpgExpr) || (be instanceof CmplExpr)) {
            right = ClassHierarchy.v().BYTE;
        } else if ((be instanceof EqExpr) || (be instanceof GeExpr) || (be instanceof GtExpr) || (be instanceof LeExpr) || (be instanceof LtExpr) || (be instanceof NeExpr)) {
            if (rop != null) {
                TypeNode lca = lop.lca_1(rop);
                if (lca == ClassHierarchy.v().TOP) {
                    if (fix) {
                        if (!lop.hasAncestor_1(ClassHierarchy.v().INT)) {
                            be.setOp1(insertCast(be.getOp1(), getTypeForCast(lop), getTypeForCast(rop), stmt));
                        }
                        if (!rop.hasAncestor_1(ClassHierarchy.v().INT)) {
                            be.setOp2(insertCast(be.getOp2(), getTypeForCast(rop), getTypeForCast(lop), stmt));
                        }
                    } else {
                        error("Type Error(11)");
                    }
                }
            }
            right = ClassHierarchy.v().BOOLEAN;
        } else {
            throw new RuntimeException("Unhandled binary expression type: " + be.getClass());
        }
    } else if (r instanceof CastExpr) {
        CastExpr ce = (CastExpr) r;
        if (ce.getCastType() instanceof IntegerType) {
            right = ClassHierarchy.v().typeNode(ce.getCastType());
        }
    } else if (r instanceof InstanceOfExpr) {
        right = ClassHierarchy.v().BOOLEAN;
    } else if (r instanceof InvokeExpr) {
        InvokeExpr ie = (InvokeExpr) r;
        handleInvokeExpr(ie, stmt);
        if (ie.getMethodRef().returnType() instanceof IntegerType) {
            right = ClassHierarchy.v().typeNode(ie.getMethodRef().returnType());
        }
    } else if (r instanceof NewArrayExpr) {
        NewArrayExpr nae = (NewArrayExpr) r;
        Value size = nae.getSize();
        if (size instanceof Local) {
            if (!ClassHierarchy.v().typeNode(((Local) size).getType()).hasAncestor_1(ClassHierarchy.v().INT)) {
                if (fix) {
                    nae.setSize(insertCast((Local) size, IntType.v(), stmt));
                } else {
                    error("Type Error(12)");
                }
            }
        }
    } else if (r instanceof NewExpr) {
    } else if (r instanceof NewMultiArrayExpr) {
        NewMultiArrayExpr nmae = (NewMultiArrayExpr) r;
        for (int i = 0; i < nmae.getSizeCount(); i++) {
            Value size = nmae.getSize(i);
            if (size instanceof Local) {
                if (!ClassHierarchy.v().typeNode(((Local) size).getType()).hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        nmae.setSize(i, insertCast((Local) size, IntType.v(), stmt));
                    } else {
                        error("Type Error(13)");
                    }
                }
            }
        }
    } else if (r instanceof LengthExpr) {
        right = ClassHierarchy.v().INT;
    } else if (r instanceof NegExpr) {
        NegExpr ne = (NegExpr) r;
        if (ne.getOp() instanceof Local) {
            Local local = (Local) ne.getOp();
            if (local.getType() instanceof IntegerType) {
                TypeNode ltype = ClassHierarchy.v().typeNode(local.getType());
                if (!ltype.hasAncestor_1(ClassHierarchy.v().INT)) {
                    if (fix) {
                        ne.setOp(insertCast(local, IntType.v(), stmt));
                        ltype = ClassHierarchy.v().BYTE;
                    } else {
                        error("Type Error(14)");
                    }
                }
                right = (ltype == ClassHierarchy.v().CHAR) ? ClassHierarchy.v().INT : ltype;
            }
        } else if (ne.getOp() instanceof DoubleConstant) {
        } else if (ne.getOp() instanceof FloatConstant) {
        } else if (ne.getOp() instanceof IntConstant) {
            right = ClassHierarchy.v().INT;
        } else if (ne.getOp() instanceof LongConstant) {
        } else {
            throw new RuntimeException("Unhandled neg expression operand type: " + ne.getOp().getClass());
        }
    } else if (r instanceof Local) {
        Local local = (Local) r;
        if (local.getType() instanceof IntegerType) {
            right = ClassHierarchy.v().typeNode(local.getType());
        }
    } else if (r instanceof InstanceFieldRef) {
        InstanceFieldRef ref = (InstanceFieldRef) r;
        if (ref.getFieldRef().type() instanceof IntegerType) {
            right = ClassHierarchy.v().typeNode(ref.getFieldRef().type());
        }
    } else if (r instanceof StaticFieldRef) {
        StaticFieldRef ref = (StaticFieldRef) r;
        if (ref.getFieldRef().type() instanceof IntegerType) {
            right = ClassHierarchy.v().typeNode(ref.getFieldRef().type());
        }
    } else {
        throw new RuntimeException("Unhandled assignment right hand side type: " + r.getClass());
    }
    if (left != null && right != null) {
        if (!right.hasAncestor_1(left)) {
            if (fix) {
                stmt.setRightOp(insertCast(stmt.getRightOp(), getTypeForCast(right), getTypeForCast(left), stmt));
            } else {
                error("Type Error(15)");
            }
        }
    }
}

Example 9 with SubExpr

use of soot.jimple.SubExpr in project soot by Sable.

the class DecrementIncrementStmtCreation method caseASTStatementSequenceNode.

public void caseASTStatementSequenceNode(ASTStatementSequenceNode node) {
    for (AugmentedStmt as : node.getStatements()) {
        // System.out.println(temp);
        Stmt s = as.get_Stmt();
        if (!(s instanceof DefinitionStmt))
            continue;
        // check if its i= i+1
        Value left = ((DefinitionStmt) s).getLeftOp();
        Value right = ((DefinitionStmt) s).getRightOp();
        if (right instanceof SubExpr) {
            Value op1 = ((SubExpr) right).getOp1();
            Value op2 = ((SubExpr) right).getOp2();
            if (left.toString().compareTo(op1.toString()) != 0) {
                // not the same
                continue;
            }
            // check if op2 is a constant with value 1 or -1
            if (op2 instanceof IntConstant) {
                if (((IntConstant) op2).value == 1) {
                    // this is i = i-1
                    DDecrementStmt newStmt = new DDecrementStmt(left, right);
                    as.set_Stmt(newStmt);
                } else if (((IntConstant) op2).value == -1) {
                    // this is i = i+1
                    DIncrementStmt newStmt = new DIncrementStmt(left, right);
                    as.set_Stmt(newStmt);
                }
            }
        } else if (right instanceof AddExpr) {
            Value op1 = ((AddExpr) right).getOp1();
            Value op2 = ((AddExpr) right).getOp2();
            if (left.toString().compareTo(op1.toString()) != 0) {
                continue;
            }
            // check if op2 is a constant with value 1 or -1
            if (op2 instanceof IntConstant) {
                if (((IntConstant) op2).value == 1) {
                    // this is i = i+1
                    DIncrementStmt newStmt = new DIncrementStmt(left, right);
                    as.set_Stmt(newStmt);
                } else if (((IntConstant) op2).value == -1) {
                    // this is i = i-1
                    DDecrementStmt newStmt = new DDecrementStmt(left, right);
                    as.set_Stmt(newStmt);
                }
            }
        }
    // right expr was addExpr
    }
// going through statements
}