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// RUN: %clang_dfsan %s -O1 -o %t && %run %t
// RUN: %clang_dfsan %s -O0 -DO0 -o %t && %run %t
#include <assert.h>
#include <sanitizer/dfsan_interface.h>
typedef struct Pair {
int i;
char *ptr;
} Pair;
__attribute__((noinline))
Pair make_pair(int i, char *ptr) {
Pair pair;
pair.i = i;
pair.ptr = ptr;
return pair;
}
__attribute__((noinline))
Pair copy_pair1(const Pair *pair0) {
Pair pair;
pair.i = pair0->i;
pair.ptr = pair0->ptr;
return pair;
}
__attribute__((noinline))
Pair copy_pair2(const Pair pair0) {
Pair pair;
pair.i = pair0.i;
pair.ptr = pair0.ptr;
return pair;
}
int main(void) {
int i = 1;
char *ptr = NULL;
dfsan_label i_label = 1;
dfsan_label ptr_label = 2;
dfsan_set_label(i_label, &i, sizeof(i));
dfsan_set_label(ptr_label, &ptr, sizeof(ptr));
Pair pair1 = make_pair(i, ptr);
int i1 = pair1.i;
char *ptr1 = pair1.ptr;
dfsan_label i1_label = dfsan_read_label(&i1, sizeof(i1));
dfsan_label ptr1_label = dfsan_read_label(&ptr1, sizeof(ptr1));
#if defined(O0)
assert(i1_label == (i_label | ptr_label));
assert(ptr1_label == (i_label | ptr_label));
#else
assert(i1_label == i_label);
assert(ptr1_label == ptr_label);
#endif
Pair pair2 = copy_pair1(&pair1);
int i2 = pair2.i;
char *ptr2 = pair2.ptr;
dfsan_label i2_label = dfsan_read_label(&i2, sizeof(i2));
dfsan_label ptr2_label = dfsan_read_label(&ptr2, sizeof(ptr2));
#if defined(O0)
assert(i2_label == (i_label | ptr_label));
assert(ptr2_label == (i_label | ptr_label));
#else
assert(i2_label == i_label);
assert(ptr2_label == ptr_label);
#endif
Pair pair3 = copy_pair2(pair1);
int i3 = pair3.i;
char *ptr3 = pair3.ptr;
dfsan_label i3_label = dfsan_read_label(&i3, sizeof(i3));
dfsan_label ptr3_label = dfsan_read_label(&ptr3, sizeof(ptr3));
#if defined(O0)
assert(i3_label == (i_label | ptr_label));
assert(ptr3_label == (i_label | ptr_label));
#else
assert(i3_label == i_label);
assert(ptr3_label == ptr_label);
#endif
return 0;
}
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