| // RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -analyzer-constraints=basic -verify %s && |
| // RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -analyzer-constraints=range -verify %s && |
| // RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -analyzer-constraints=basic -verify %s && |
| // RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -analyzer-constraints=range -verify %s |
| |
| #include <stdint.h> |
| |
| 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}} |
| } |
