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 raw_send_hdrinc(unsigned long int length)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 main(int argc,char * argv[])18int main(int argc, char *argv[]) { 19 return raw_send_hdrinc(12); 20 } 21 22 // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value 23