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/* Test the attribute counted_by and its usage in
* __builtin_dynamic_object_size. */
/* { dg-do run } */
/* { dg-options "-O2" } */
#include "builtin-object-size-common.h"
struct flex {
int b;
int c[];
} *array_flex;
struct annotated {
int b;
int c[] __attribute__ ((counted_by (b)));
} *array_annotated;
struct nested_annotated {
struct {
union {
int b;
float f;
};
int n;
};
int c[] __attribute__ ((counted_by (b)));
} *array_nested_annotated;
void __attribute__((__noinline__)) setup (int normal_count, int attr_count)
{
array_flex
= (struct flex *)malloc (sizeof (struct flex)
+ normal_count * sizeof (int));
array_flex->b = normal_count;
array_annotated
= (struct annotated *)malloc (sizeof (struct annotated)
+ attr_count * sizeof (int));
array_annotated->b = attr_count;
array_nested_annotated
= (struct nested_annotated *)malloc (sizeof (struct nested_annotated)
+ attr_count * sizeof (int));
array_nested_annotated->b = attr_count;
return;
}
void __attribute__((__noinline__)) test ()
{
EXPECT(__builtin_dynamic_object_size(array_flex->c, 1), -1);
EXPECT(__builtin_dynamic_object_size(array_annotated->c, 1),
array_annotated->b * sizeof (int));
EXPECT(__builtin_dynamic_object_size(array_nested_annotated->c, 1),
array_nested_annotated->b * sizeof (int));
}
int main(int argc, char *argv[])
{
setup (10,10);
test ();
DONE ();
}
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