From: Louis Dionne <ldionne@apple.com>
Date: Fri, 1 May 2020 15:04:34 +0000 (-0400)
Subject: [libc++] Avoid using GNU extension in test, which triggers a warning
X-Git-Tag: llvmorg-12-init~7228
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9295f356bb30f283219b3fd32542f0096cfb9316;p=platform%2Fupstream%2Fllvm.git

[libc++] Avoid using GNU extension in test, which triggers a warning
---

diff --git a/libcxx/test/libcxx/atomics/atomics.align/align.pass.sh.cpp b/libcxx/test/libcxx/atomics/atomics.align/align.pass.sh.cpp
index 1b2eebc..835475e 100644
--- a/libcxx/test/libcxx/atomics/atomics.align/align.pass.sh.cpp
+++ b/libcxx/test/libcxx/atomics/atomics.align/align.pass.sh.cpp
@@ -28,11 +28,14 @@
 #include <atomic>
 #include <cassert>
 
-template <typename T> struct atomic_test : public std::__atomic_base<T> {
+template <typename T>
+struct atomic_test : public std::__atomic_base<T> {
   atomic_test() {
-    if (this->is_lock_free())
-      assert(alignof(this->__a_) >= sizeof(this->__a_) &&
+    if (this->is_lock_free()) {
+      using AtomicImpl = decltype(this->__a_);
+      assert(alignof(AtomicImpl) >= sizeof(AtomicImpl) &&
              "expected natural alignment for lock-free type");
+    }
   }
 };