| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core,debug.ExprInspection -analyzer-store=region -verify -analyzer-config eagerly-assume=false %s |
| 2 | |
| 3 | void clang_analyzer_eval(int); |
| 4 | void clang_analyzer_warnIfReached(); |
| 5 | |
| 6 | void f(void) { |
| 7 | void (*p)(void); |
| 8 | p = f; |
| 9 | p = &f; |
| 10 | p(); |
| 11 | (*p)(); |
| 12 | } |
| 13 | |
| 14 | void g(void (*fp)(void)); |
| 15 | |
| 16 | void f2() { |
| 17 | g(f); |
| 18 | } |
| 19 | |
| 20 | void f3(void (*f)(void), void (*g)(void)) { |
| 21 | clang_analyzer_eval(!f); // expected-warning{{UNKNOWN}} |
| 22 | f(); |
| 23 | clang_analyzer_eval(!f); // expected-warning{{FALSE}} |
| 24 | |
| 25 | clang_analyzer_eval(!g); // expected-warning{{UNKNOWN}} |
| 26 | (*g)(); |
| 27 | clang_analyzer_eval(!g); // expected-warning{{FALSE}} |
| 28 | } |
| 29 | |
| 30 | void nullFunctionPointerConstant() { |
| 31 | void (*f)(void) = 0; |
| 32 | f(); // expected-warning{{Called function pointer is null}} |
| 33 | clang_analyzer_warnIfReached(); // no-warning |
| 34 | } |
| 35 | |
| 36 | void nullFunctionPointerConstraint(void (*f)(void)) { |
| 37 | if (f) |
| 38 | return; |
| 39 | f(); // expected-warning{{Called function pointer is null}} |
| 40 | clang_analyzer_warnIfReached(); // no-warning |
| 41 | } |
| 42 | |