Anders Carlsson | abea951 | 2011-02-28 00:40:07 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -Wunreachable-code -fblocks -verify %s |
Mike Stump | fa6ef18 | 2010-01-13 02:59:54 +0000 | [diff] [blame] | 2 | |
| 3 | int j; |
| 4 | void bar() { } |
| 5 | int test1() { |
| 6 | for (int i = 0; |
| 7 | i != 10; |
| 8 | ++i) { // expected-warning {{will never be executed}} |
| 9 | if (j == 23) // missing {}'s |
| 10 | bar(); |
| 11 | return 1; |
| 12 | } |
| 13 | return 0; |
| 14 | return 1; // expected-warning {{will never be executed}} |
| 15 | } |
| 16 | |
| 17 | void test2(int i) { |
| 18 | switch (i) { |
| 19 | case 0: |
| 20 | break; |
| 21 | bar(); // expected-warning {{will never be executed}} |
| 22 | case 2: |
| 23 | switch (i) { |
| 24 | default: |
| 25 | a: goto a; |
| 26 | } |
| 27 | bar(); // expected-warning {{will never be executed}} |
| 28 | } |
| 29 | b: goto b; |
| 30 | bar(); // expected-warning {{will never be executed}} |
| 31 | } |
| 32 | |
| 33 | void test3() { |
| 34 | ^{ return; |
| 35 | bar(); // expected-warning {{will never be executed}} |
| 36 | }(); |
| 37 | while (++j) { |
| 38 | continue; |
| 39 | bar(); // expected-warning {{will never be executed}} |
| 40 | } |
| 41 | } |
Ted Kremenek | 47e331e | 2010-08-28 00:19:02 +0000 | [diff] [blame] | 42 | |
| 43 | // PR 6130 - Don't warn about bogus unreachable code with throw's and |
| 44 | // temporary objects. |
| 45 | class PR6130 { |
| 46 | public: |
| 47 | PR6130(); |
| 48 | ~PR6130(); |
| 49 | }; |
| 50 | |
| 51 | int pr6130(unsigned i) { |
| 52 | switch(i) { |
| 53 | case 0: return 1; |
| 54 | case 1: return 2; |
| 55 | default: |
| 56 | throw PR6130(); // no-warning |
| 57 | } |
| 58 | } |