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authorDimitry Andric <dim@FreeBSD.org>2015-12-30 11:52:19 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-12-30 11:52:19 +0000
commit5c909fa013fc285f010a95e8d387e0ef3412da9c (patch)
tree1059d068ad281f4776ff44cd414574f99a460023 /test/tsan/Darwin/gcd-sync-race.mm
parentf31bcc68c72371a2bf63aead9f3373a1ff2053b6 (diff)
downloadsrc-5c909fa013fc285f010a95e8d387e0ef3412da9c.tar.gz
src-5c909fa013fc285f010a95e8d387e0ef3412da9c.zip
Vendor import of compiler-rt trunk r256633:vendor/compiler-rt/compiler-rt-trunk-r256633
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=292925 svn path=/vendor/compiler-rt/compiler-rt-trunk-r256633/; revision=292926; tag=vendor/compiler-rt/compiler-rt-trunk-r256633
Diffstat (limited to 'test/tsan/Darwin/gcd-sync-race.mm')
-rw-r--r--test/tsan/Darwin/gcd-sync-race.mm44
1 files changed, 44 insertions, 0 deletions
diff --git a/test/tsan/Darwin/gcd-sync-race.mm b/test/tsan/Darwin/gcd-sync-race.mm
new file mode 100644
index 000000000000..62901d9b2612
--- /dev/null
+++ b/test/tsan/Darwin/gcd-sync-race.mm
@@ -0,0 +1,44 @@
+// RUN: %clang_tsan %s -o %t -framework Foundation
+// RUN: %deflake %run %t 2>&1
+
+#import <Foundation/Foundation.h>
+
+#import "../test.h"
+
+long global;
+
+int main() {
+ NSLog(@"Hello world.");
+ NSLog(@"addr=%p\n", &global);
+ barrier_init(&barrier, 2);
+
+ dispatch_queue_t q1 = dispatch_queue_create("my.queue1", DISPATCH_QUEUE_CONCURRENT);
+ dispatch_queue_t q2 = dispatch_queue_create("my.queue2", DISPATCH_QUEUE_CONCURRENT);
+
+ global = 42;
+ dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+ dispatch_sync(q1, ^{
+ global = 43;
+ barrier_wait(&barrier);
+ });
+ });
+ dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+ dispatch_sync(q2, ^{
+ barrier_wait(&barrier);
+ global = 44;
+
+ dispatch_sync(dispatch_get_main_queue(), ^{
+ CFRunLoopStop(CFRunLoopGetCurrent());
+ });
+ });
+ });
+
+ CFRunLoopRun();
+ NSLog(@"Done.");
+}
+
+// CHECK: Hello world.
+// CHECK: addr=[[ADDR:0x[0-9,a-f]+]]
+// CHECK: WARNING: ThreadSanitizer: data race
+// CHECK: Location is global 'global' at [[ADDR]] (global_race.cc.exe+0x{{[0-9,a-f]+}})
+// CHECK: Done.