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-rw-r--r--compiler-rt/test/tsan/stack_sync_reuse.cc9
1 files changed, 3 insertions, 6 deletions
diff --git a/compiler-rt/test/tsan/stack_sync_reuse.cc b/compiler-rt/test/tsan/stack_sync_reuse.cc
index b1d5619df27..5ea9e84b085 100644
--- a/compiler-rt/test/tsan/stack_sync_reuse.cc
+++ b/compiler-rt/test/tsan/stack_sync_reuse.cc
@@ -1,8 +1,5 @@
// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
+#include "test.h"
// Test case https://code.google.com/p/thread-sanitizer/issues/detail?id=87
// Tsan sees false HB edge on address pointed to by syncp variable.
@@ -26,7 +23,7 @@ long sink;
void *Thread(void *x) {
while (__atomic_load_n(&syncp, __ATOMIC_ACQUIRE) == 0)
- usleep(1000);
+ usleep(1000); // spin wait
global = 42;
__atomic_store_n(syncp, 1, __ATOMIC_RELEASE);
__atomic_store_n(&syncp, 0, __ATOMIC_RELAXED);
@@ -39,7 +36,7 @@ void __attribute__((noinline)) foobar() {
__atomic_store_n(&s, 0, __ATOMIC_RELAXED);
__atomic_store_n(&syncp, &s, __ATOMIC_RELEASE);
while (__atomic_load_n(&syncp, __ATOMIC_RELAXED) != 0)
- usleep(1000);
+ usleep(1000); // spin wait
}
void __attribute__((noinline)) barfoo() {
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