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
6struct iphdr {
7 unsigned char pad1: 2, ihl:4, pad2: 2;
8};
9
10int 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
18int main(int argc, char *argv[]) {
19 return raw_send_hdrinc(length: 12);
20}
21
22// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
23

source code of compiler-rt/test/msan/pr32842.c