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* [gcc r14-1408] libstdc++: Simplify calculation of expected value in simd test
@ 2023-05-30 14:21 Matthias Kretz
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From: Matthias Kretz @ 2023-05-30 14:21 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
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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