From: Matthias Kretz <m.kretz@gsi.de>
To: <gcc-patches@gcc.gnu.org>, <libstdc++@gcc.gnu.org>
Subject: [PATCH 8/8] libstdc++: Test that integral simd reductions are precise
Date: Thu, 23 Feb 2023 09:50:16 +0100 [thread overview]
Message-ID: <2166927.NgBsaNRSFp@minbar> (raw)
In-Reply-To: <2218250.iZASKD2KPV@minbar>
[-- Attachment #1: Type: text/plain, Size: 918 bytes --]
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.
---
libstdc++-v3/testsuite/experimental/simd/tests/reductions.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--
──────────────────────────────────────────────────────────────────────────
Dr. Matthias Kretz https://mattkretz.github.io
GSI Helmholtz Centre for Heavy Ion Research https://gsi.de
stdₓ::simd
──────────────────────────────────────────────────────────────────────────
[-- Attachment #2: 0008-libstdc-Test-that-integral-simd-reductions-are-preci.patch --]
[-- Type: text/x-patch, Size: 665 bytes --]
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);
});
}
next prev parent reply other threads:[~2023-02-23 8:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-23 8:48 [PATCH 0/8] std::experimental::simd patchset Matthias Kretz
2023-02-23 8:49 ` [PATCH 1/8] libstdc++: Simplify three helper functions into one Matthias Kretz
2023-02-23 11:05 ` Jonathan Wakely
2023-02-23 8:49 ` [PATCH 2/8] libstdc++: Fix simd build failure on clang Matthias Kretz
2023-02-23 11:06 ` Jonathan Wakely
2023-02-23 8:49 ` [PATCH 3/8] libstdc++: More efficient masked inc-/decrement implementation Matthias Kretz
2023-02-24 17:12 ` Jonathan Wakely
2023-02-23 8:49 ` [PATCH 4/8] libstdc++: Add missing constexpr on simd shift implementation Matthias Kretz
2023-02-23 11:07 ` Jonathan Wakely
2023-02-23 11:33 ` Matthias Kretz
2023-02-23 8:49 ` [PATCH 5/8] libstdc++: Always-inline most of non-cmath fixed_size implementation Matthias Kretz
2023-02-24 17:10 ` Jonathan Wakely
2023-02-23 8:50 ` [PATCH 6/8] libstdc++: Fix formatting Matthias Kretz
2023-02-24 17:14 ` Jonathan Wakely
2023-02-24 18:44 ` Matthias Kretz
2023-02-23 8:50 ` [PATCH 7/8] libstdc++: Fix -Wsign-compare issue Matthias Kretz
2023-02-23 11:07 ` Jonathan Wakely
2023-02-23 8:50 ` Matthias Kretz [this message]
2023-02-23 11:08 ` [PATCH 8/8] libstdc++: Test that integral simd reductions are precise Jonathan Wakely
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