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-rw-r--r--test/tsan/stack_sync_reuse.cc8
1 files changed, 5 insertions, 3 deletions
diff --git a/test/tsan/stack_sync_reuse.cc b/test/tsan/stack_sync_reuse.cc
index 5ea9e84b085a..d2bc5cb1b282 100644
--- a/test/tsan/stack_sync_reuse.cc
+++ b/test/tsan/stack_sync_reuse.cc
@@ -1,7 +1,7 @@
// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
#include "test.h"
-// Test case https://code.google.com/p/thread-sanitizer/issues/detail?id=87
+// Test case https://github.com/google/sanitizers/issues/494
// Tsan sees false HB edge on address pointed to by syncp variable.
// It is false because when acquire is done syncp points to a var in one frame,
// and during release it points to a var in a different frame.
@@ -31,7 +31,8 @@ void *Thread(void *x) {
}
void __attribute__((noinline)) foobar() {
- long s;
+ __attribute__((aligned(64))) long s;
+
addr = &s;
__atomic_store_n(&s, 0, __ATOMIC_RELAXED);
__atomic_store_n(&syncp, &s, __ATOMIC_RELEASE);
@@ -40,7 +41,8 @@ void __attribute__((noinline)) foobar() {
}
void __attribute__((noinline)) barfoo() {
- long s;
+ __attribute__((aligned(64))) long s;
+
if (addr != &s) {
printf("address mismatch addr=%p &s=%p\n", addr, &s);
exit(1);