From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- third_party/highway/hwy/tests/swizzle_test.cc | 272 ++++++++++++++++++++++++++ 1 file changed, 272 insertions(+) create mode 100644 third_party/highway/hwy/tests/swizzle_test.cc (limited to 'third_party/highway/hwy/tests/swizzle_test.cc') diff --git a/third_party/highway/hwy/tests/swizzle_test.cc b/third_party/highway/hwy/tests/swizzle_test.cc new file mode 100644 index 0000000000..f447f7a800 --- /dev/null +++ b/third_party/highway/hwy/tests/swizzle_test.cc @@ -0,0 +1,272 @@ +// Copyright 2019 Google LLC +// SPDX-License-Identifier: Apache-2.0 +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include +#include // memset + +#include "hwy/base.h" + +#undef HWY_TARGET_INCLUDE +#define HWY_TARGET_INCLUDE "tests/swizzle_test.cc" +#include "hwy/foreach_target.h" // IWYU pragma: keep +#include "hwy/highway.h" +#include "hwy/tests/test_util-inl.h" + +HWY_BEFORE_NAMESPACE(); +namespace hwy { +namespace HWY_NAMESPACE { + +struct TestGetLane { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const auto v = Iota(d, T(1)); + HWY_ASSERT_EQ(T(1), GetLane(v)); + } +}; + +HWY_NOINLINE void TestAllGetLane() { + ForAllTypes(ForPartialVectors()); +} + +struct TestExtractLane { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const auto v = Iota(d, T(1)); + for (size_t i = 0; i < Lanes(d); ++i) { + const T actual = ExtractLane(v, i); + HWY_ASSERT_EQ(static_cast(i + 1), actual); + } + } +}; + +HWY_NOINLINE void TestAllExtractLane() { + ForAllTypes(ForPartialVectors()); +} + +struct TestInsertLane { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + using V = Vec; + const V v = Iota(d, T(1)); + const size_t N = Lanes(d); + auto lanes = AllocateAligned(N); + Store(v, d, lanes.get()); + + for (size_t i = 0; i < Lanes(d); ++i) { + lanes[i] = T{0}; + const V actual = InsertLane(v, i, static_cast(i + 1)); + HWY_ASSERT_VEC_EQ(d, v, actual); + Store(v, d, lanes.get()); // restore lane i + } + } +}; + +HWY_NOINLINE void TestAllInsertLane() { + ForAllTypes(ForPartialVectors()); +} + +struct TestDupEven { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const size_t N = Lanes(d); + auto expected = AllocateAligned(N); + for (size_t i = 0; i < N; ++i) { + expected[i] = static_cast((static_cast(i) & ~1) + 1); + } + HWY_ASSERT_VEC_EQ(d, expected.get(), DupEven(Iota(d, 1))); + } +}; + +HWY_NOINLINE void TestAllDupEven() { + ForUIF3264(ForShrinkableVectors()); +} + +struct TestDupOdd { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { +#if HWY_TARGET != HWY_SCALAR + const size_t N = Lanes(d); + auto expected = AllocateAligned(N); + for (size_t i = 0; i < N; ++i) { + expected[i] = static_cast((static_cast(i) & ~1) + 2); + } + HWY_ASSERT_VEC_EQ(d, expected.get(), DupOdd(Iota(d, 1))); +#else + (void)d; +#endif + } +}; + +HWY_NOINLINE void TestAllDupOdd() { + ForUIF3264(ForShrinkableVectors()); +} + +struct TestOddEven { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const size_t N = Lanes(d); + const auto even = Iota(d, 1); + const auto odd = Iota(d, static_cast(1 + N)); + auto expected = AllocateAligned(N); + for (size_t i = 0; i < N; ++i) { + expected[i] = static_cast(1 + i + ((i & 1) ? N : 0)); + } + HWY_ASSERT_VEC_EQ(d, expected.get(), OddEven(odd, even)); + } +}; + +HWY_NOINLINE void TestAllOddEven() { + ForAllTypes(ForShrinkableVectors()); +} + +struct TestOddEvenBlocks { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const size_t N = Lanes(d); + const auto even = Iota(d, 1); + const auto odd = Iota(d, static_cast(1 + N)); + auto expected = AllocateAligned(N); + for (size_t i = 0; i < N; ++i) { + const size_t idx_block = i / (16 / sizeof(T)); + expected[i] = static_cast(1 + i + ((idx_block & 1) ? N : 0)); + } + HWY_ASSERT_VEC_EQ(d, expected.get(), OddEvenBlocks(odd, even)); + } +}; + +HWY_NOINLINE void TestAllOddEvenBlocks() { + ForAllTypes(ForGEVectors<128, TestOddEvenBlocks>()); +} + +struct TestSwapAdjacentBlocks { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const size_t N = Lanes(d); + constexpr size_t kLanesPerBlock = 16 / sizeof(T); + if (N < 2 * kLanesPerBlock) return; + const auto vi = Iota(d, 1); + auto expected = AllocateAligned(N); + for (size_t i = 0; i < N; ++i) { + const size_t idx_block = i / kLanesPerBlock; + const size_t base = (idx_block ^ 1) * kLanesPerBlock; + const size_t mod = i % kLanesPerBlock; + expected[i] = static_cast(1 + base + mod); + } + HWY_ASSERT_VEC_EQ(d, expected.get(), SwapAdjacentBlocks(vi)); + } +}; + +HWY_NOINLINE void TestAllSwapAdjacentBlocks() { + ForAllTypes(ForGEVectors<128, TestSwapAdjacentBlocks>()); +} + +struct TestTableLookupLanes { + template + HWY_NOINLINE void operator()(T /*unused*/, D d) { + const RebindToSigned di; + using TI = TFromD; +#if HWY_TARGET != HWY_SCALAR + const size_t N = Lanes(d); + auto idx = AllocateAligned(N); + memset(idx.get(), 0, N * sizeof(TI)); + auto expected = AllocateAligned(N); + const auto v = Iota(d, 1); + + if (N <= 8) { // Test all permutations + for (size_t i0 = 0; i0 < N; ++i0) { + idx[0] = static_cast(i0); + + for (size_t i1 = 0; i1 < N; ++i1) { + if (N >= 2) idx[1] = static_cast(i1); + for (size_t i2 = 0; i2 < N; ++i2) { + if (N >= 4) idx[2] = static_cast(i2); + for (size_t i3 = 0; i3 < N; ++i3) { + if (N >= 4) idx[3] = static_cast(i3); + + for (size_t i = 0; i < N; ++i) { + expected[i] = static_cast(idx[i] + 1); // == v[idx[i]] + } + + const auto opaque1 = IndicesFromVec(d, Load(di, idx.get())); + const auto actual1 = TableLookupLanes(v, opaque1); + HWY_ASSERT_VEC_EQ(d, expected.get(), actual1); + + const auto opaque2 = SetTableIndices(d, idx.get()); + const auto actual2 = TableLookupLanes(v, opaque2); + HWY_ASSERT_VEC_EQ(d, expected.get(), actual2); + } + } + } + } + } else { + // Too many permutations to test exhaustively; choose one with repeated + // and cross-block indices and ensure indices do not exceed #lanes. + // For larger vectors, upper lanes will be zero. + HWY_ALIGN TI idx_source[16] = {1, 3, 2, 2, 8, 1, 7, 6, + 15, 14, 14, 15, 4, 9, 8, 5}; + for (size_t i = 0; i < N; ++i) { + idx[i] = (i < 16) ? idx_source[i] : 0; + // Avoid undefined results / asan error for scalar by capping indices. + if (idx[i] >= static_cast(N)) { + idx[i] = static_cast(N - 1); + } + expected[i] = static_cast(idx[i] + 1); // == v[idx[i]] + } + + const auto opaque1 = IndicesFromVec(d, Load(di, idx.get())); + const auto actual1 = TableLookupLanes(v, opaque1); + HWY_ASSERT_VEC_EQ(d, expected.get(), actual1); + + const auto opaque2 = SetTableIndices(d, idx.get()); + const auto actual2 = TableLookupLanes(v, opaque2); + HWY_ASSERT_VEC_EQ(d, expected.get(), actual2); + } +#else + const TI index = 0; + const auto v = Set(d, 1); + const auto opaque1 = SetTableIndices(d, &index); + HWY_ASSERT_VEC_EQ(d, v, TableLookupLanes(v, opaque1)); + const auto opaque2 = IndicesFromVec(d, Zero(di)); + HWY_ASSERT_VEC_EQ(d, v, TableLookupLanes(v, opaque2)); +#endif + } +}; + +HWY_NOINLINE void TestAllTableLookupLanes() { + ForUIF3264(ForPartialVectors()); +} + + +// NOLINTNEXTLINE(google-readability-namespace-comments) +} // namespace HWY_NAMESPACE +} // namespace hwy +HWY_AFTER_NAMESPACE(); + +#if HWY_ONCE + +namespace hwy { +HWY_BEFORE_TEST(HwySwizzleTest); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllGetLane); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllExtractLane); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllInsertLane); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllDupEven); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllDupOdd); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllOddEven); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllOddEvenBlocks); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllSwapAdjacentBlocks); +HWY_EXPORT_AND_TEST_P(HwySwizzleTest, TestAllTableLookupLanes); +} // namespace hwy + +#endif -- cgit v1.2.3