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From: Matthias Kretz <mkretz@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r14-1408] libstdc++: Simplify calculation of expected value in simd test Date: Tue, 30 May 2023 14:21:46 +0000 (GMT) [thread overview] Message-ID: <20230530142146.80827385773C@sourceware.org> (raw) https://gcc.gnu.org/g:3e2689e568425f14d6728504ad6f5d32b90320ad commit r14-1408-g3e2689e568425f14d6728504ad6f5d32b90320ad Author: Matthias Kretz <m.kretz@gsi.de> Date: Thu May 25 12:53:06 2023 +0200 libstdc++: Simplify calculation of expected value in simd test This avoids a failure on PR109964. Signed-off-by: Matthias Kretz <m.kretz@gsi.de> libstdc++-v3/ChangeLog: * testsuite/experimental/simd/tests/integer_operators.cc: Compute expected value differently to avoid getting turned into a vector shift. Diff: --- .../testsuite/experimental/simd/tests/integer_operators.cc | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc b/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc index 7a2bc085e49..08ad49ca710 100644 --- a/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc +++ b/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc @@ -179,11 +179,10 @@ template <typename V> for (int j = 0; j < 100; ++j) { const V seq([&](auto i) -> T { return (j + i) % n_promo_bits; }); - COMPARE(V(1) >> seq, V([&](auto i) { return T(T(1) >> seq[i]); })) - << "seq = " << seq; - COMPARE(make_value_unknown(V(1)) >> make_value_unknown(seq), - V([&](auto i) { return T(T(1) >> seq[i]); })) - << "seq = " << seq; + const V expect([&](auto i) { return seq[i] == 0 ? T(1) : T(0); }); + COMPARE(V(1) >> seq, expect) << "\nseq = " << seq; + COMPARE(make_value_unknown(V(1)) >> make_value_unknown(seq), expect) + << "\nseq = " << seq; } for_constexpr<int, 0, n_promo_bits - 1>([](auto shift_ic) { constexpr int shift = shift_ic;
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