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-rw-r--r--gcc/testsuite/gcc.dg/pointer-counted-by-8.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pointer-counted-by-8.c b/gcc/testsuite/gcc.dg/pointer-counted-by-8.c
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+++ b/gcc/testsuite/gcc.dg/pointer-counted-by-8.c
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+/* Additional test of the attribute counted_by for pointer field and its usage
+ in __builtin_dynamic_object_size. */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+#include "builtin-object-size-common.h"
+
+struct annotated {
+ int b;
+ int *c __attribute__ ((counted_by (b)));
+};
+
+
+void __attribute__((__noinline__)) setup (int **ptr, int attr_count)
+{
+ *ptr = (int *) malloc (sizeof (int) * attr_count);
+}
+
+int main(int argc, char *argv[])
+{
+ struct annotated *f
+ = (struct annotated *) __builtin_malloc (sizeof (struct annotated));
+ setup (&f->c, 10);
+ f->b = 10;
+ EXPECT(__builtin_dynamic_object_size (f->c, 1), 10 * sizeof (int));
+ free (f->c);
+ free (f);
+ DONE ();
+}