Update IR's helper functions

examples/logical_op.c

@@ -0,0 +1,16 @@
+int main() {
+    int a = 0;
+    int b = 0;
+    int c = 0;
+    int d = 0;
+
+    if ((a = 1) || (b = 1)) {
+        b++;
+    }
+
+    if ((c = 1) && (d = 1)) {
+        d++;
+    }
+
+    return b == 1 && d == 2;
+}