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From: Matthias Kretz <mkretz@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r13-6302] libstdc++: Test that integral simd reductions are precise Date: Thu, 23 Feb 2023 14:04:17 +0000 (GMT) [thread overview] Message-ID: <20230223140417.F19933850425@sourceware.org> (raw) https://gcc.gnu.org/g:8fda668e0919af9ceda9435f02a1708b375b2913 commit r13-6302-g8fda668e0919af9ceda9435f02a1708b375b2913 Author: Matthias Kretz <m.kretz@gsi.de> Date: Tue Feb 21 10:43:13 2023 +0100 libstdc++: Test that integral simd reductions are precise Signed-off-by: Matthias Kretz <m.kretz@gsi.de> libstdc++-v3/ChangeLog: * testsuite/experimental/simd/tests/reductions.cc: Introduce max_distance as the type-dependent max error. Diff: --- libstdc++-v3/testsuite/experimental/simd/tests/reductions.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libstdc++-v3/testsuite/experimental/simd/tests/reductions.cc b/libstdc++-v3/testsuite/experimental/simd/tests/reductions.cc index 0c4c79feb20..fed164314d7 100644 --- a/libstdc++-v3/testsuite/experimental/simd/tests/reductions.cc +++ b/libstdc++-v3/testsuite/experimental/simd/tests/reductions.cc @@ -112,6 +112,7 @@ template <typename V> T acc = x[0]; for (size_t i = 1; i < V::size(); ++i) acc += x[i]; - ULP_COMPARE(reduce(x), acc, V::size() / 2).on_failure("x = ", x); + const T max_distance = std::is_integral_v<T> ? 0 : V::size() / 2; + ULP_COMPARE(reduce(x), acc, max_distance).on_failure("x = ", x); }); }
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