1 // RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-store=region -analyzer-constraints=range -verify -Wno-unreachable-code -ffreestanding %s
2
3 #include <stdint.h>
4
f1(int * p)5 void f1(int * p) {
6
7 // This branch should be infeasible
8 // because __imag__ p is 0.
9 if (!p && __imag__ (intptr_t) p)
10 *p = 1; // no-warning
11
12 // If p != 0 then this branch is feasible; otherwise it is not.
13 if (__real__ (intptr_t) p)
14 *p = 1; // no-warning
15
16 *p = 2; // expected-warning{{Dereference of null pointer}}
17 }
18