| // RUN: %clang_analyze_cc1 -analyzer-checker debug.ExprInspection -Wno-deprecated-non-prototype -verify %s |
| // RUN: %clang_analyze_cc1 -analyzer-checker debug.ExprInspection -Wno-deprecated-non-prototype -verify %s \ |
| // RUN: -analyzer-config support-symbolic-integer-casts=true |
| |
| void clang_analyzer_denote(int, const char *); |
| void clang_analyzer_express(int); |
| void clang_analyzer_dump(int); |
| void clang_analyzer_dump_ptr(int *); |
| |
| void SymbolCast_of_float_type_aux(int *p) { |
| clang_analyzer_dump_ptr(p); // expected-warning {{&x}} |
| clang_analyzer_dump(*p); // expected-warning {{Unknown}} |
| // Storing to the memory region of 'float x' as 'int' will |
| // materialize a fresh conjured symbol to regain accuracy. |
| *p += 0; |
| clang_analyzer_dump_ptr(p); // expected-warning {{&x}} |
| clang_analyzer_dump(*p); // expected-warning {{conj_$0{int}} |
| clang_analyzer_denote(*p, "$x"); |
| |
| *p += 1; |
| // This should NOT be (float)$x + 1. Symbol $x was never casted to float. |
| clang_analyzer_express(*p); // expected-warning{{$x + 1}} |
| } |
| |
| void SymbolCast_of_float_type(void) { |
| extern float x; |
| void (*f)() = SymbolCast_of_float_type_aux; |
| f(&x); |
| } |