1 // RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-store=region -analyzer-constraints=basic -verify -Wno-unreachable-code -ffreestanding %s
2 // RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-store=region -analyzer-constraints=range -verify -Wno-unreachable-code -ffreestanding %s
3 
4 #include <stdint.h>
5 
6 void f1(int * p) {
7 
8   // This branch should be infeasible
9   // because __imag__ p is 0.
10   if (!p && __imag__ (intptr_t) p)
11     *p = 1; // no-warning
12 
13   // If p != 0 then this branch is feasible; otherwise it is not.
14   if (__real__ (intptr_t) p)
15     *p = 1; // no-warning
16 
17   *p = 2; // expected-warning{{Dereference of null pointer}}
18 }
19