129f7a1d8e
On 64-bit walleye, improves the linker relocation benchmark from 71.9ms to 70.7ms (1.7% of the run-time). On a 32-bit device, it improves the linker relocation benchmark from 205.5ms to 201.2ms (2.1% of the run-time). $ adb shell taskset 10 /data/benchmarktest64/linker-benchmarks/linker-benchmarks --benchmark_repetitions=100 --benchmark_display_aggregates_only -------------------------------------------------------------------- Benchmark Time CPU Iterations -------------------------------------------------------------------- BM_gnu_hash_simple_mean 15232 ns 15212 ns 100 BM_gnu_hash_simple_median 15176 ns 15159 ns 100 BM_gnu_hash_simple_stddev 111 ns 110 ns 100 BM_gnu_hash_neon_mean 10265 ns 10252 ns 100 BM_gnu_hash_neon_median 10261 ns 10249 ns 100 BM_gnu_hash_neon_stddev 28.1 ns 23.9 ns 100 Bug: none Test: linker-unit-tests Test: linker-benchmarks Change-Id: I3983bca1dddc9241bb70290ad3651d895f046660
59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <gtest/gtest.h>
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#include "linker_gnu_hash.h"
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TEST(linker_gnu_hash, compare_neon_to_simple) {
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#if USE_GNU_HASH_NEON
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auto check_input = [&](const char* name) {
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auto expected = calculate_gnu_hash_simple(name);
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auto actual = calculate_gnu_hash_neon(name);
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EXPECT_EQ(expected.first, actual.first) << name;
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EXPECT_EQ(expected.second, actual.second) << name;
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};
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__attribute__((aligned(8))) const char test1[] = "abcdefghijklmnop\0qrstuvwxyz";
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for (size_t i = 0; i < sizeof(test1) - 1; ++i) {
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check_input(&test1[i]);
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}
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__attribute__((aligned(8))) const char test2[] = "abcdefghijklmnopqrs\0tuvwxyz";
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for (size_t i = 0; i < sizeof(test2) - 1; ++i) {
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check_input(&test2[i]);
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}
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__attribute__((aligned(8))) const char test3[] = "abcdefghijklmnopqrstuv\0wxyz";
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for (size_t i = 0; i < sizeof(test3) - 1; ++i) {
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check_input(&test3[i]);
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}
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#else
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GTEST_SKIP() << "This test is only implemented on arm/arm64";
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#endif
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}
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