[llvm-commits] [compiler-rt] r170894 - /compiler-rt/trunk/lib/tsan/lit_tests/java_rwlock.cc

[Dmitry Vyukov]

Author: dvyukov
Date: Fri Dec 21 07:31:07 2012
New Revision: 170894

URL: http://llvm.org/viewvc/llvm-project?rev=170894&view=rev
Log:
tsan: add java rwlock test

Added:
    compiler-rt/trunk/lib/tsan/lit_tests/java_rwlock.cc

Added: compiler-rt/trunk/lib/tsan/lit_tests/java_rwlock.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/lit_tests/java_rwlock.cc?rev=170894&view=auto
==============================================================================
--- compiler-rt/trunk/lib/tsan/lit_tests/java_rwlock.cc (added)
+++ compiler-rt/trunk/lib/tsan/lit_tests/java_rwlock.cc Fri Dec 21 07:31:07 2012
@@ -0,0 +1,32 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
+#include "java.h"
+
+jptr varaddr;
+jptr lockaddr;
+
+void *Thread(void *p) {
+  __tsan_java_mutex_read_lock(lockaddr);
+  *(int*)varaddr = 42;
+  __tsan_java_mutex_read_unlock(lockaddr);
+  return 0;
+}
+
+int main() {
+  int const kHeapSize = 1024 * 1024;
+  void *jheap = malloc(kHeapSize);
+  __tsan_java_init((jptr)jheap, kHeapSize);
+  const int kBlockSize = 16;
+  __tsan_java_alloc((jptr)jheap, kBlockSize);
+  varaddr = (jptr)jheap;
+  lockaddr = (jptr)jheap + 8;
+  pthread_t th;
+  pthread_create(&th, 0, Thread, 0);
+  __tsan_java_mutex_lock(lockaddr);
+  *(int*)varaddr = 43;
+  __tsan_java_mutex_unlock(lockaddr);
+  pthread_join(th, 0);
+  __tsan_java_free((jptr)jheap, kBlockSize);
+  return __tsan_java_fini();
+}
+
+// CHECK-NOT: WARNING: ThreadSanitizer: data race