From d22cc284647c2f660e0055b6d9e4b8d02d2a3563 Mon Sep 17 00:00:00 2001
From: fruffy <fruffy@google.com>
Date: Mon, 25 Mar 2024 20:38:42 +0000
Subject: [PATCH] Add a missing nullopt check.

---
 backends/p4tools/modules/testgen/testgen.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/backends/p4tools/modules/testgen/testgen.cpp b/backends/p4tools/modules/testgen/testgen.cpp
index 9324031a95..935d6a052c 100644
--- a/backends/p4tools/modules/testgen/testgen.cpp
+++ b/backends/p4tools/modules/testgen/testgen.cpp
@@ -171,6 +171,11 @@ std::optional<AbstractTestList> generateTestsImpl(std::optional<std::string_view
         compilerResultOpt = P4Tools::CompilerTarget::runCompiler();
     }
 
+    if (!compilerResultOpt.has_value()) {
+        ::error("Failed to run the compiler.");
+        return std::nullopt;
+    }
+
     const auto *testgenCompilerResult =
         compilerResultOpt.value().get().checkedTo<TestgenCompilerResult>();