https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110643
--- Comment #5 from Mathieu Malaterre <malat at debian dot org> --- > We are going to need a self contained testcase to figure this out ... You are not going to like it. Anyway here it goes: [using Debian sid/arm64] $ git clone https://github.com/google/highway.git $ export CXX=-O1 $ export CXXFLAGS=g++-13 $ cmake -S highway -B build -DHWY_SYSTEM_GTEST=ON $ cmake --build build -- -j8 math_test $ ctest --test-dir build -R HwyMathTestGroup/HwyMathTest.TestAllAtan2/NEON_WITHOUT_AES I can provide the *.ii file if needed.