Imported gcc-4.4.3

[msp430-gcc.git] / libmudflap / testsuite / libmudflap.cth / pass37-frag.c

diff --git a/libmudflap/testsuite/libmudflap.cth/pass37-frag.c b/libmudflap/testsuite/libmudflap.cth/pass37-frag.c
new file mode 100644 (file)
index 0000000..877803c
--- /dev/null
+++ b/libmudflap/testsuite/libmudflap.cth/pass37-frag.c
@@ -0,0 +1,58 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <sched.h>
+
+static void *
+func (void *p)
+{
+  int *counter = (int *) p;
+  unsigned i;
+  
+  for (i=0; i<100; i++)
+    {
+      (*counter) ++;
+      {
+       int array[17];
+       unsigned x = i % (sizeof(array)/sizeof(array[0]));
+       /* VRP could prove that x is within [0,16], but until then, the
+          following access will ensure that array[] is registered to
+          libmudflap. */
+       array[x] = i;
+      }
+      sched_yield (); /* sleep (1); */
+    }
+
+  return (NULL);
+}
+
+
+int main ()
+{
+  int rc;
+  unsigned i;
+  enum foo { NT=10 };
+  pthread_t threads[NT];
+  int counts[NT];
+
+
+  for (i=0; i<NT; i++)
+    {
+      counts[i] = 0;
+      rc = pthread_create (& threads[i], NULL, func, (void *) & counts[i]);
+      if (rc) abort();
+    }
+
+  for (i=0; i<NT; i++)
+    {
+      rc = pthread_join (threads[i], NULL);
+      if (rc) abort();      
+      printf ("%d%s", counts[i], (i==NT-1) ? "\n" : " ");
+    }
+
+  return 0;
+}
+
+/* { dg-output "100 100 100 100 100 100 100 100 100 100" } */
+/* { dg-repetitions 20 } */
+/* { dg-timeout 10 } */