Checking in some checks...

[repair.git] / Repair / RepairCompiler / MCC / IR / OpExpr.java

diff --git a/Repair/RepairCompiler/MCC/IR/OpExpr.java b/Repair/RepairCompiler/MCC/IR/OpExpr.java
index 8693aa3965a77d8ff08cc692b9c5b18f96040143..c7cdd0d4cad9718e3f408a98ff314e63c902d556 100755 (executable)
--- a/Repair/RepairCompiler/MCC/IR/OpExpr.java
+++ b/Repair/RepairCompiler/MCC/IR/OpExpr.java
@@ -15,6 +15,8 @@ public class OpExpr extends Expr {
     }
 
     public static boolean isInt(Expr e) {
+       if (e==null)
+           return false;
        if ((e instanceof IntegerLiteralExpr)||
            ((e instanceof OpExpr)&&(((OpExpr)e).opcode==Opcode.NOP)&&(((OpExpr)e).getLeftExpr() instanceof IntegerLiteralExpr)))
            return true;
@@ -35,8 +37,8 @@ public class OpExpr extends Expr {
            (isInt(left)&&(opcode==Opcode.RND))) {
            this.opcode=Opcode.NOP;
            this.right=null;
-           int lint=getInt(left);
-           int rint=getInt(right);
+           int lint=isInt(left)?getInt(left):0;
+           int rint=isInt(right)?getInt(right):0;
            int value=0;
            if (opcode==Opcode.ADD) {
                value=lint+rint;