| // RUN: %clang_analyze_cc1 -analyzer-output=text \ |
| // RUN: -analyzer-checker=core -verify %s |
| |
| int assuming_unsigned_ge_0(unsigned arg) { |
| // TODO This testcase demonstrates the current incorrect behavior of Clang |
| // Static Analyzer: here 'arg' is unsigned, so "arg >= 0" is not a fresh |
| // assumption, but it still appears in the diagnostics as if it's fresh: |
| // expected-note@+2 {{Assuming 'arg' is >= 0}} |
| // expected-note@+1 {{Taking false branch}} |
| if (arg < 0) |
| return 0; |
| // expected-note@+2 {{Assuming 'arg' is <= 0}} |
| // expected-note@+1 {{Taking false branch}} |
| if (arg > 0) |
| return 0; |
| // expected-note@+2 {{Division by zero}} |
| // expected-warning@+1 {{Division by zero}} |
| return 100 / arg; |
| } |
