// RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1 // RUN: FileCheck %s < %t.out // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1 // RUN: FileCheck %s < %t.out #include #include #include #include volatile int z; int main(void) { struct addrinfo *ai; struct addrinfo hint; int res = getaddrinfo("localhost", NULL, NULL, &ai); if (ai) z = 1; // OK res = getaddrinfo("localhost", NULL, &hint, &ai); // CHECK: Uninitialized bytes in __interceptor_getaddrinfo at offset 0 inside [0x{{.*}}, 48) // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value // CHECK: #0 {{.*}} in main {{.*}}getaddrinfo-positive.cc:[[@LINE-3]] return 0; }