| // RUN: %clang_analyze_cc1 %s \ |
| // RUN: -analyzer-checker=core \ |
| // RUN: -analyzer-checker=debug.ExprInspection \ |
| // RUN: -analyzer-config eagerly-assume=false \ |
| // RUN: -verify |
| |
| // In this test we check whether the solver's symbol simplification mechanism |
| // is capable of re-assuming simiplified symbols. |
| |
| void clang_analyzer_eval(bool); |
| void clang_analyzer_warnIfReached(); |
| |
| void test_reassume_false_range(int x, int y) { |
| if (x + y != 0) // x + y == 0 |
| return; |
| if (x != 1) // x == 1 |
| return; |
| clang_analyzer_eval(y == -1); // expected-warning{{TRUE}} |
| } |
| |
| void test_reassume_true_range(int x, int y) { |
| if (x + y != 1) // x + y == 1 |
| return; |
| if (x != 1) // x == 1 |
| return; |
| clang_analyzer_eval(y == 0); // expected-warning{{TRUE}} |
| } |
| |
| void test_reassume_inclusive_range(int x, int y) { |
| if (x + y < 0 || x + y > 1) // x + y: [0, 1] |
| return; |
| if (x != 1) // x == 1 |
| return; |
| // y: [-1, 0] |
| clang_analyzer_eval(y > 0); // expected-warning{{FALSE}} |
| clang_analyzer_eval(y < -1);// expected-warning{{FALSE}} |
| } |