1 | // Regression test for https://bugs.llvm.org/show_bug.cgi?id=32842 |
2 | // |
3 | // RUN: %clang_msan -g %s -o %t |
4 | // RUN: not %run %t 2>&1 | FileCheck %s |
5 | |
6 | struct iphdr { |
7 | unsigned char pad1: 2, ihl:4, pad2: 2; |
8 | }; |
9 | |
10 | int raw_send_hdrinc(unsigned long int length) { |
11 | struct iphdr iph; |
12 | if (iph.ihl * 4 > length) { |
13 | return 1; |
14 | } |
15 | return 0; |
16 | } |
17 | |
18 | int main(int argc, char *argv[]) { |
19 | return raw_send_hdrinc(length: 12); |
20 | } |
21 | |
22 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
23 | |