Ted Kremenek | 8b3b3db | 2011-01-25 22:57:41 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s -Wmissing-noreturn -Wreturn-type |
Anders Carlsson | 4855a52 | 2010-02-06 05:31:15 +0000 | [diff] [blame] | 2 | void f() __attribute__((noreturn)); |
| 3 | |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 4 | template<typename T> void g(T) { |
Anders Carlsson | 4855a52 | 2010-02-06 05:31:15 +0000 | [diff] [blame] | 5 | f(); |
| 6 | } |
| 7 | |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 8 | template void g<int>(int); |
Anders Carlsson | 4855a52 | 2010-02-06 05:31:15 +0000 | [diff] [blame] | 9 | |
| 10 | template<typename T> struct A { |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 11 | void g() { |
Anders Carlsson | 4855a52 | 2010-02-06 05:31:15 +0000 | [diff] [blame] | 12 | f(); |
| 13 | } |
| 14 | }; |
| 15 | |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 16 | template struct A<int>; |
Anders Carlsson | 4855a52 | 2010-02-06 05:31:15 +0000 | [diff] [blame] | 17 | |
| 18 | struct B { |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 19 | template<typename T> void g(T) { |
Anders Carlsson | 4855a52 | 2010-02-06 05:31:15 +0000 | [diff] [blame] | 20 | f(); |
| 21 | } |
| 22 | }; |
| 23 | |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 24 | template void B::g<int>(int); |
Douglas Gregor | ca7eaee | 2010-04-16 23:28:44 +0000 | [diff] [blame] | 25 | |
| 26 | // We don't want a warning here. |
| 27 | struct X { |
| 28 | virtual void g() { f(); } |
| 29 | }; |
John McCall | 259d48e | 2010-04-30 07:10:06 +0000 | [diff] [blame] | 30 | |
| 31 | namespace test1 { |
| 32 | bool condition(); |
| 33 | |
| 34 | // We don't want a warning here. |
| 35 | void foo() { |
| 36 | while (condition()) {} |
| 37 | } |
| 38 | } |
Ted Kremenek | 01b0cfa | 2010-05-13 06:58:45 +0000 | [diff] [blame] | 39 | |
| 40 | |
| 41 | // <rdar://problem/7880658> - This test case previously had a false "missing return" |
| 42 | // warning. |
| 43 | struct R7880658 { |
| 44 | R7880658 &operator++(); |
| 45 | bool operator==(const R7880658 &) const; |
| 46 | bool operator!=(const R7880658 &) const; |
| 47 | }; |
| 48 | |
| 49 | void f_R7880658(R7880658 f, R7880658 l) { // no-warning |
| 50 | for (; f != l; ++f) { |
| 51 | } |
| 52 | } |
Anders Carlsson | 0dc5f9a | 2011-01-16 22:12:43 +0000 | [diff] [blame] | 53 | |
| 54 | namespace test2 { |
| 55 | |
| 56 | bool g(); |
| 57 | void *h() __attribute__((noreturn)); |
| 58 | void *j(); |
| 59 | |
| 60 | struct A { |
| 61 | void *f; |
| 62 | |
| 63 | A() : f(0) { } |
Chandler Carruth | b0656ec | 2011-08-31 09:01:53 +0000 | [diff] [blame] | 64 | A(int) : f(h()) { } // expected-warning {{function 'A' could be declared with attribute 'noreturn'}} |
Anders Carlsson | 0dc5f9a | 2011-01-16 22:12:43 +0000 | [diff] [blame] | 65 | A(char) : f(j()) { } |
| 66 | A(bool b) : f(b ? h() : j()) { } |
| 67 | }; |
Anders Carlsson | 22c4120 | 2011-01-17 19:06:31 +0000 | [diff] [blame] | 68 | } |
Anders Carlsson | 0dc5f9a | 2011-01-16 22:12:43 +0000 | [diff] [blame] | 69 | |
Anders Carlsson | 22c4120 | 2011-01-17 19:06:31 +0000 | [diff] [blame] | 70 | namespace test3 { |
| 71 | struct A { |
| 72 | ~A(); |
| 73 | }; |
| 74 | |
| 75 | struct B { |
| 76 | ~B() { } |
| 77 | |
| 78 | A a; |
| 79 | }; |
| 80 | |
| 81 | struct C : A { |
| 82 | ~C() { } |
| 83 | }; |
Anders Carlsson | 0dc5f9a | 2011-01-16 22:12:43 +0000 | [diff] [blame] | 84 | } |
Ted Kremenek | 8b3b3db | 2011-01-25 22:57:41 +0000 | [diff] [blame] | 85 | |
| 86 | // <rdar://problem/8875247> - Properly handle CFGs with destructors. |
| 87 | struct rdar8875247 { |
| 88 | ~rdar8875247 (); |
| 89 | }; |
| 90 | void rdar8875247_aux(); |
| 91 | |
| 92 | int rdar8875247_test() { |
| 93 | rdar8875247 f; |
| 94 | } // expected-warning{{control reaches end of non-void function}} |
| 95 | |
Ted Kremenek | 5811f59 | 2011-01-26 04:49:52 +0000 | [diff] [blame] | 96 | struct rdar8875247_B { |
| 97 | rdar8875247_B(); |
| 98 | ~rdar8875247_B(); |
| 99 | }; |
| 100 | |
| 101 | rdar8875247_B test_rdar8875247_B() { |
| 102 | rdar8875247_B f; |
| 103 | return f; |
| 104 | } // no-warning |
| 105 | |
Douglas Gregor | fcdd2cb | 2011-10-10 18:15:57 +0000 | [diff] [blame] | 106 | namespace PR10801 { |
| 107 | struct Foo { |
| 108 | void wibble() __attribute((__noreturn__)); |
| 109 | }; |
| 110 | |
| 111 | struct Bar { |
| 112 | void wibble(); |
| 113 | }; |
| 114 | |
| 115 | template <typename T> void thingy(T thing) { |
| 116 | thing.wibble(); |
| 117 | } |
| 118 | |
| 119 | void test() { |
| 120 | Foo f; |
| 121 | Bar b; |
| 122 | thingy(f); |
| 123 | thingy(b); |
| 124 | } |
| 125 | } |