1*67e74705SXin Li // RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-store=region -analyzer-constraints=range -verify -Wno-unreachable-code -ffreestanding %s 2*67e74705SXin Li 3*67e74705SXin Li #include <stdint.h> 4*67e74705SXin Li f1(int * p)5*67e74705SXin Livoid f1(int * p) { 6*67e74705SXin Li 7*67e74705SXin Li // This branch should be infeasible 8*67e74705SXin Li // because __imag__ p is 0. 9*67e74705SXin Li if (!p && __imag__ (intptr_t) p) 10*67e74705SXin Li *p = 1; // no-warning 11*67e74705SXin Li 12*67e74705SXin Li // If p != 0 then this branch is feasible; otherwise it is not. 13*67e74705SXin Li if (__real__ (intptr_t) p) 14*67e74705SXin Li *p = 1; // no-warning 15*67e74705SXin Li 16*67e74705SXin Li *p = 2; // expected-warning{{Dereference of null pointer}} 17*67e74705SXin Li } 18