| // RUN: %clang_analyze_cc1 -verify %s \ |
| // RUN: -Wno-unreachable-code -ffreestanding \ |
| // RUN: -analyzer-checker=core \ |
| // RUN: -analyzer-checker=debug.ExprInspection |
| |
| #include <stdint.h> |
| |
| int clang_analyzer_eval(int); |
| |
| void f1(int * p) { |
| // This branch should be infeasible |
| // because __imag__ p is 0. |
| if (!p && __imag__ (intptr_t) p) |
| *p = 1; // no-warning |
| |
| // If p != 0 then this branch is feasible; otherwise it is not. |
| if (__real__ (intptr_t) p) |
| *p = 1; // no-warning |
| |
| *p = 2; // expected-warning{{Dereference of null pointer}} |
| } |
| |
| void complexFloat(__complex__ float f) { |
| clang_analyzer_eval(__real__(f) == 1); // expected-warning{{UNKNOWN}} |
| clang_analyzer_eval(__imag__(f) == 1); // expected-warning{{UNKNOWN}} |
| |
| __real__(f) = 1; |
| __imag__(f) = 1; |
| |
| clang_analyzer_eval(__real__(f) == 1); // expected-warning{{UNKNOWN}} |
| clang_analyzer_eval(__imag__(f) == 1); // expected-warning{{UNKNOWN}} |
| } |
| |
| void complexInt(__complex__ int f) { |
| clang_analyzer_eval(__real__(f) == 1); // expected-warning{{UNKNOWN}} |
| clang_analyzer_eval(__imag__(f) == 1); // expected-warning{{UNKNOWN}} |
| |
| __real__(f) = 1; |
| __imag__(f) = 1; |
| |
| clang_analyzer_eval(__real__(f) == 1); // expected-warning{{UNKNOWN}} |
| clang_analyzer_eval(__imag__(f) == 1); // expected-warning{{UNKNOWN}} |
| } |
