Stephen Hines | 651f13c | 2014-04-23 16:59:28 -0700 | [diff] [blame] | 1 | // RUN: %clang -target x86_64-unknown-freebsd --analyze %s |
| 2 | |
| 3 | #include "Inputs/system-header-simulator.h" |
| 4 | |
| 5 | #define M_ZERO 0x0100 |
| 6 | #define NULL ((void *)0) |
| 7 | |
| 8 | void *malloc(size_t, void *, int); |
| 9 | |
| 10 | struct test { |
| 11 | }; |
| 12 | |
| 13 | void foo(struct test *); |
| 14 | |
| 15 | void test_zeroed() { |
| 16 | struct test **list, *t; |
| 17 | int i; |
| 18 | |
| 19 | list = malloc(sizeof(*list) * 10, NULL, M_ZERO); |
| 20 | if (list == NULL) |
| 21 | return; |
| 22 | |
| 23 | for (i = 0; i < 10; i++) { |
| 24 | t = list[i]; |
| 25 | foo(t); |
| 26 | } |
| 27 | free(list); // no-warning |
| 28 | } |
| 29 | |
| 30 | void test_nonzero() { |
| 31 | struct test **list, *t; |
| 32 | int i; |
| 33 | |
| 34 | list = malloc(sizeof(*list) * 10, NULL, 0); |
| 35 | if (list == NULL) |
| 36 | return; |
| 37 | |
| 38 | for (i = 0; i < 10; i++) { |
| 39 | t = list[i]; // expected-warning{{undefined}} |
| 40 | foo(t); |
| 41 | } |
| 42 | free(list); |
| 43 | } |
| 44 | |
| 45 | void test_indeterminate(int flags) { |
| 46 | struct test **list, *t; |
| 47 | int i; |
| 48 | |
| 49 | list = malloc(sizeof(*list) * 10, NULL, flags); |
| 50 | if (list == NULL) |
| 51 | return; |
| 52 | |
| 53 | for (i = 0; i < 10; i++) { |
| 54 | t = list[i]; // expected-warning{{undefined}} |
| 55 | foo(t); |
| 56 | } |
| 57 | free(list); |
| 58 | } |