From 364bf01ff254f9fa01e14f24002af682a51b4883 Mon Sep 17 00:00:00 2001 From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> Date: Fri, 12 Apr 2024 09:52:06 +0200 Subject: [PATCH] build: Fix false positive `CHECK_ATOMIC` test for clang-15 Github-Pull: #29859 Rebased-From: dd3e0fa12534c9e782dc9c24d2e30b70a0d73176 --- build-aux/m4/l_atomic.m4 | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/build-aux/m4/l_atomic.m4 b/build-aux/m4/l_atomic.m4 index aa00168fce..859ddaabbb 100644 --- a/build-aux/m4/l_atomic.m4 +++ b/build-aux/m4/l_atomic.m4 @@ -7,7 +7,7 @@ dnl warranty. # Clang, when building for 32-bit, # and linking against libstdc++, requires linking with # -latomic if using the C++ atomic library. -# Can be tested with: clang++ test.cpp -m32 +# Can be tested with: clang++ -std=c++20 test.cpp -m32 # # Sourced from http://bugs.debian.org/797228 @@ -27,8 +27,11 @@ m4_define([_CHECK_ATOMIC_testbody], [[ auto t1 = t.load(); t.compare_exchange_strong(t1, 3s); - std::atomic a{}; + std::atomic d{}; + d.store(3.14); + auto d1 = d.load(); + std::atomic a{}; int64_t v = 5; int64_t r = a.fetch_add(v); return static_cast(r);