1 //===- unittests/AST/DeclTest.cpp --- Declaration tests -------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Unit tests for Decl nodes in the AST.
12 //===----------------------------------------------------------------------===//
14 #include "clang/ASTMatchers/ASTMatchFinder.h"
15 #include "clang/Tooling/Tooling.h"
16 #include "gtest/gtest.h"
18 using namespace clang::ast_matchers;
19 using namespace clang::tooling;
21 TEST(Decl, CleansUpAPValues) {
23 llvm::OwningPtr<FrontendActionFactory> Factory(
24 newFrontendActionFactory(&Finder));
26 // This is a regression test for a memory leak in APValues for structs that
27 // allocate memory. This test only fails if run under valgrind with full leak
29 std::vector<std::string> Args(1, "-std=c++11");
30 Args.push_back("-fno-ms-extensions");
31 ASSERT_TRUE(runToolOnCodeWithArgs(
33 "struct X { int a; }; constexpr X x = { 42 };"
34 "union Y { constexpr Y(int a) : a(a) {} int a; }; constexpr Y y = { 42 };"
35 "constexpr int z[2] = { 42, 43 };"
36 "constexpr int __attribute__((vector_size(16))) v1 = {};"
37 "\n#ifdef __SIZEOF_INT128__\n"
38 "constexpr __uint128_t large_int = 0xffffffffffffffff;"
39 "constexpr __uint128_t small_int = 1;"
41 "constexpr double d1 = 42.42;"
42 "constexpr long double d2 = 42.42;"
43 "constexpr _Complex long double c1 = 42.0i;"
44 "constexpr _Complex long double c2 = 42.0;"
45 "template<int N> struct A : A<N-1> {};"
46 "template<> struct A<0> { int n; }; A<50> a;"
47 "constexpr int &r = a.n;"
48 "constexpr int A<50>::*p = &A<50>::n;"
49 "void f() { foo: bar: constexpr int k = __builtin_constant_p(0) ?"
50 " (char*)&&foo - (char*)&&bar : 0; }",
53 // FIXME: Once this test starts breaking we can test APValue::needsCleanup
55 ASSERT_FALSE(runToolOnCodeWithArgs(
57 "constexpr _Complex __uint128_t c = 0xffffffffffffffff;",