Add extensive Interpreter tests for Cpp::Evaluate

Author: aaronj0

unittests/CppInterOp/InterpreterTest.cpp

@@ -83,6 +83,40 @@ TYPED_TEST(CppInterOpTest, InterpreterTestEvaluate) {
   EXPECT_FALSE(HadError) ;
 }
 
+TYPED_TEST(CppInterOpTest, InterpreterTestEvaluateExtensive) {
+#ifdef EMSCRIPTEN
+  GTEST_SKIP() << "Test fails for Emscipten builds";
+#endif
+#ifdef _WIN32
+  GTEST_SKIP() << "Disabled on Windows. Needs fixing.";
+#endif
+  if (llvm::sys::RunningOnValgrind())
+    GTEST_SKIP() << "XFAIL due to Valgrind report";
+  if (TypeParam::isOutOfProcess)
+    GTEST_SKIP() << "Test fails for OOP JIT builds";
+
+  Cpp::CreateInterpreter();
+  EXPECT_TRUE(Cpp::Evaluate("__cplusplus") == 201402);
+
+  bool HadError;
+  EXPECT_TRUE(Cpp::Evaluate("#error", &HadError) == (intptr_t)~0UL);
+  EXPECT_TRUE(HadError);
+  // for llvm < 19 this tests different overloads of
+  // __clang_Interpreter_SetValueNoAlloc
+  EXPECT_EQ(Cpp::Evaluate("double a = 12.; a", &HadError), 12.);
+  EXPECT_FALSE(HadError);
+  EXPECT_EQ(Cpp::Evaluate("float b = 13.; b", &HadError), 13.);
+  EXPECT_FALSE(HadError);
+  EXPECT_EQ(Cpp::Evaluate("long double c = 14.; c", &HadError), 14.);
+  EXPECT_FALSE(HadError);
+  EXPECT_EQ(Cpp::Evaluate("long double d = 15.; d", &HadError), 15.);
+  EXPECT_FALSE(HadError);
+  EXPECT_EQ(Cpp::Evaluate("unsigned long long e = 16; e", &HadError), 16);
+  EXPECT_FALSE(HadError);
+  EXPECT_NE(Cpp::Evaluate("struct S{} s; s", &HadError), (intptr_t)~0UL);
+  EXPECT_FALSE(HadError);
+}
+
 TYPED_TEST(CppInterOpTest, InterpreterTestDeleteInterpreter) {
   if (TypeParam::isOutOfProcess)
     GTEST_SKIP() << "Test fails for OOP JIT builds";