1 files changed, 30 insertions, 0 deletions
diff --git a/boehm-gc/tests/trace_test.c b/boehm-gc/tests/trace_test.c
new file mode 100644
index 000000000..b84d53ea9
--- /dev/null
+++ b/boehm-gc/tests/trace_test.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#define GC_DEBUG
+#include "gc.h"
+
+struct treenode {
+    struct treenode *x;
+    struct treenode *y;
+} * root[10];
+
+struct treenode * mktree(int i) {
+  struct treenode * r = GC_MALLOC(sizeof(struct treenode));
+  if (0 == i) return 0;
+  if (1 == i) r = GC_MALLOC_ATOMIC(sizeof(struct treenode));
+  r -> x = mktree(i-1);
+  r -> y = mktree(i-1);
+  return r;
+}
+
+int main()
+{
+  int i;
+  for (i = 0; i < 10; ++i) {
+    root[i] = mktree(12);
+  }
+  GC_generate_random_backtrace();
+  GC_generate_random_backtrace();
+  GC_generate_random_backtrace();
+  GC_generate_random_backtrace();
+  return 0;
+}