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authorAlexey Samsonov <samsonov@google.com>2014-02-14 14:35:48 +0000
committerAlexey Samsonov <samsonov@google.com>2014-02-14 14:35:48 +0000
commite951fe4eec98de20b9b843f97fec2cca84c48b9c (patch)
treee5d5d3dbf11683bfde3cfd829ccea8ddbbc0dd0e /test/tsan/sleep_sync.cc
parentba2d0d7b386f38c97eee11749f2fc75449c2b253 (diff)
Move TSan lit-tests under test/tsan
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201414 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/tsan/sleep_sync.cc')
-rw-r--r--test/tsan/sleep_sync.cc30
1 files changed, 30 insertions, 0 deletions
diff --git a/test/tsan/sleep_sync.cc b/test/tsan/sleep_sync.cc
new file mode 100644
index 000000000..217a52a09
--- /dev/null
+++ b/test/tsan/sleep_sync.cc
@@ -0,0 +1,30 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <unistd.h>
+
+int X = 0;
+
+void MySleep() {
+ sleep(1);
+}
+
+void *Thread(void *p) {
+ MySleep(); // Assume the main thread has done the write.
+ X = 42;
+ return 0;
+}
+
+int main() {
+ pthread_t t;
+ pthread_create(&t, 0, Thread, 0);
+ X = 43;
+ pthread_join(t, 0);
+ return 0;
+}
+
+// CHECK: WARNING: ThreadSanitizer: data race
+// ...
+// CHECK: As if synchronized via sleep:
+// CHECK-NEXT: #0 sleep
+// CHECK-NEXT: #1 MySleep
+// CHECK-NEXT: #2 Thread