// RUN: %clang_dfsan %s -fsanitize-ignorelist=%S/Inputs/flags_abilist.txt -DFORCE_ZERO_LABELS -o %t && %run %t // RUN: %clang_dfsan %s -o %t && %run %t #include #include int function_to_force_zero(int i, int* out) { *out = i; return i; } int main(void) { int i = 1; dfsan_label i_label = 2; dfsan_set_label(i_label, &i, sizeof(i)); int out = 0; int ret = function_to_force_zero(i, &out); #ifdef FORCE_ZERO_LABELS assert(dfsan_get_label(out) == 0); assert(dfsan_get_label(ret) == 0); #else assert(dfsan_get_label(out) == i_label); assert(dfsan_get_label(ret) == i_label); #endif return 0; }