rdar-6541136-region.c revision 58e689fead1490611bcd114fb707bfc08a12049e 
1// RUN: clang-cc -verify -analyze -checker-cfref -analyzer-store=region %s
2
3struct tea_cheese { unsigned magic; };
4typedef struct tea_cheese kernel_tea_cheese_t;
5extern kernel_tea_cheese_t _wonky_gesticulate_cheese;
6
7// This test case exercises the ElementRegion::getRValueType() logic.
8
9
10void foo( void )
11{
12  kernel_tea_cheese_t *wonky = &_wonky_gesticulate_cheese;
13  struct load_wine *cmd = (void*) &wonky[1];
14  cmd = cmd;
15  char *p = (void*) &wonky[1];
16  //*p = 1;  // this is also an out-of-bound access.
17  kernel_tea_cheese_t *q = &wonky[1];
18  // This test case tests both the RegionStore logic (doesn't crash) and
19  // the out-of-bounds checking.  We don't expect the warning for now since
20  // out-of-bound checking is temporarily disabled.
21  kernel_tea_cheese_t r = *q; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
22}
23