summaryrefslogtreecommitdiff
path: root/libgomp/testsuite/libgomp.c/critical-1.c
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libgomp/testsuite/libgomp.c/critical-1.c
downloadcbb-gcc-4.6.4-upstream.tar.bz2
cbb-gcc-4.6.4-upstream.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
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.
Diffstat (limited to 'libgomp/testsuite/libgomp.c/critical-1.c')
-rw-r--r--libgomp/testsuite/libgomp.c/critical-1.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/libgomp/testsuite/libgomp.c/critical-1.c b/libgomp/testsuite/libgomp.c/critical-1.c
new file mode 100644
index 000000000..2b8503be7
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c/critical-1.c
@@ -0,0 +1,39 @@
+/* Trivial test of critical sections. */
+
+/* { dg-require-effective-target sync_int_long } */
+
+#include <omp.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <assert.h>
+#include "libgomp_g.h"
+
+
+static volatile int test = -1;
+
+static void function(void *dummy)
+{
+ int iam = omp_get_thread_num ();
+ int old;
+
+ GOMP_critical_start ();
+
+ old = __sync_lock_test_and_set (&test, iam);
+ assert (old == -1);
+
+ usleep (10);
+ test = -1;
+
+ GOMP_critical_end ();
+}
+
+int main()
+{
+ omp_set_dynamic (0);
+
+ GOMP_parallel_start (function, NULL, 3);
+ function (NULL);
+ GOMP_parallel_end ();
+
+ return 0;
+}