1 //===- unittests/AST/DeclTest.cpp --- Declaration tests -------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Unit tests for Decl nodes in the AST. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "clang/ASTMatchers/ASTMatchFinder.h" 15 #include "clang/Tooling/Tooling.h" 16 #include "gtest/gtest.h" 17 18 using namespace clang::ast_matchers; 19 using namespace clang::tooling; 20 21 TEST(Decl, CleansUpAPValues) { 22 MatchFinder Finder; 23 llvm::OwningPtr<FrontendActionFactory> Factory( 24 newFrontendActionFactory(&Finder)); 25 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 28 // checking enabled. 29 std::vector<std::string> Args(1, "-std=c++11"); 30 Args.push_back("-fno-ms-extensions"); 31 ASSERT_TRUE(runToolOnCodeWithArgs( 32 Factory->create(), 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;" 40 "\n#endif\n" 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; }", 51 Args)); 52 53 // FIXME: Once this test starts breaking we can test APValue::needsCleanup 54 // for ComplexInt. 55 ASSERT_FALSE(runToolOnCodeWithArgs( 56 Factory->create(), 57 "constexpr _Complex __uint128_t c = 0xffffffffffffffff;", 58 Args)); 59 } 60