Don't crash when constant folding an integer division by zero.

Signed-off-by: Tiago Trevisan Jost <tiago.trevisanjost@amd.com>
Co-authored-by: Matthias Gehre <matthias.gehre@amd.com>

src/Dialect/ONNX/Transforms/ConstProp.cpp

@@ -254,7 +254,16 @@ struct ElementWiseBinaryOpImpl<ONNXMulOp, T, EnableNotBool<T>> {
 
 template <typename T>
 struct ElementWiseBinaryOpImpl<ONNXDivOp, T, EnableNotBool<T>> {
-  static T eval(T lhs, T rhs) { return lhs / rhs; }
+  static T eval(T lhs, T rhs) {
+    if constexpr (std::is_integral_v<T>) {
+      if (rhs == 0) {
+        // Undefined behavior. We can return any value.
+        // Performing the divison would crash.
+        return lhs;
+      }
+    }
+    return lhs / rhs;
+  }
 };
 
 template <typename T>