Add method for getting raw operand from llil operation

Author: james-a-johnson

rust/src/low_level_il/operation.rs

@@ -88,6 +88,22 @@ where
         };
         PossibleValueSet::from_owned_core_raw(raw_pvs)
     }
+
+    /// Get the raw operand from the operand list.
+    ///
+    /// This has no type information associated with it. It's up to the caller to know what the correct type of the
+    /// underlying u64 should be.
+    ///
+    /// # Panic
+    /// `idx` must be less than 4. This is to protect against an out of bounds access.
+    ///
+    /// # Safety
+    /// Even if `idx` is valid, it may index to an unitialized or unused value. Make sure you index into an operand that
+    /// you know should be initialized properly.
+    pub unsafe fn get_operand(&self, idx: usize) -> u64 {
+        assert!(idx < 4);
+        self.op.operands[idx]
+    }
 }
 
 impl<M, O> Operation<'_, M, NonSSA, O>