From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libmudflap/testsuite/libmudflap.cth/pass37-frag.c | 58 +++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 libmudflap/testsuite/libmudflap.cth/pass37-frag.c

(limited to '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
index 000000000..877803c1e
--- /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 } */
-- 
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