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 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
