mirror of
https://github.com/VectorCamp/vectorscan.git
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211 lines
7.2 KiB
C++
211 lines
7.2 KiB
C++
/*
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* Copyright (c) 2016, Intel Corporation
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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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* 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 the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "rose/validate_mask.h"
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#include "gtest/gtest.h"
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#define ONES32 0xffffffffu
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union RoseLookaroundMask32 {
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m256 a256;
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u8 a8[32];
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};
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struct ValidateMask32TestInfo {
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RoseLookaroundMask32 data;
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RoseLookaroundMask32 and_mask;
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RoseLookaroundMask32 cmp_mask;
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u32 valid_mask;
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u32 neg_mask;
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};
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struct ValidateMask32InitInfo {
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int idx;
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u8 data;
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u8 and_mask;
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u8 cmp_mask;
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u8 neg_mask;
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};
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static const ValidateMask32InitInfo testBasicIdx[][33] = {
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{
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{1, 0x34, 0xf8, 0x30, 0},
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{2, 0x34, 0xf8, 0x30, 0},
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{8, 0x23, 0xff, 0x23, 0},
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{9, 0x34, 0xf8, 0x30, 0},
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{10, 0x41, 0xdf, 0x41, 0},
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{11, 0x63, 0xdd, 0x41, 0},
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{12, 0x61, 0xdd, 0x41, 0},
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{13, 0x41, 0xdf, 0x41, 0},
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{14, 0x61, 0xdf, 0x41, 0},
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{15, 0x41, 0xdf, 0x41, 0},
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{16, 0x43, 0xdd, 0x41, 0},
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{17, 0x61, 0xdd, 0x41, 0},
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{23, 0x63, 0xdd, 0x41, 0},
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{24, 0x4f, 0xfc, 0x4c, 0},
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{25, 0x4d, 0xfc, 0x4c, 0},
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{26, 0x4d, 0xfc, 0x4c, 0},
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{-1, 0, 0, 0, 0},
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},
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{
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{11, 0, 0xff, 0x55, 1},
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{12, 0, 0xff, 0x36, 1},
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{13, 0, 0xfe, 0x34, 1},
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{14, 0x4d, 0xfe, 0x4c, 0},
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{15, 0x41, 0xbf, 0x01, 0},
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{16, 0x53, 0xdf, 0x73, 1},
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{17, 0x4b, 0, 0, 0},
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{18, 0, 0x2c, 0x2c, 1},
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{-1, 0, 0, 0, 0},
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},
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{
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{15, 0x46, 0xdf, 0x46, 0},
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{16, 0x4f, 0xdf, 0x46, 1},
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{17, 0x6f, 0xff, 0x6f, 0},
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{18, 0x31, 0xfe, 0x30, 0},
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{19, 0x34, 0xf8, 0x30, 0},
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{20, 0x66, 0xc0, 0x40, 0},
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{21, 0x6f, 0xf0, 0x60, 0},
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{22, 0x6f, 0, 0, 0},
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{23, 0x46, 0xdf, 0x44, 1},
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{24, 0x4f, 0xdf, 0x46, 1},
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{25, 0x6f, 0xff, 0x4f, 1},
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{26, 0x31, 0xfe, 0x30, 0},
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{27, 0x34, 0xf8, 0x34, 1},
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{28, 0x66, 0xc0, 0x60, 1},
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{29, 0x6f, 0xf0, 0x6f, 1},
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{30, 0x6f, 0, 0x60, 1},
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{-1, 0, 0, 0, 0},
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},
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{
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{31, 0x4a, 0x80, 0, 0},
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{-1, 0, 0, 0, 1},
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},
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{
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{12, 0x2b, 0x3d, 0x2d, 1},
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{13, 0x2b, 0x3d, 0x4c, 1},
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{23, 0x4a, 0x88, 0x0a, 1},
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{-1, 0, 0, 0, 0},
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},
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};
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static void initTestInfo(ValidateMask32TestInfo &t) {
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t.data.a256 = zeroes256();
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t.valid_mask = 0xffffffff;
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t.and_mask.a256 = zeroes256();
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t.cmp_mask.a256 = zeroes256();
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t.neg_mask = 0;
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};
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static
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int testBasicInit(ValidateMask32TestInfo *testB) {
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int len = 0;
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ValidateMask32TestInfo t;
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for (size_t i = 0; i < ARRAY_LENGTH(testBasicIdx); i++) {
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initTestInfo(t);
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for (const auto &line: testBasicIdx[i]) {
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if (line.idx < 0) {
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break;
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}
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int index = line.idx;
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t.data.a8[index] = line.data;
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t.and_mask.a8[index] = line.and_mask;
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t.cmp_mask.a8[index] = line.cmp_mask;
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t.neg_mask |= line.neg_mask << index;
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}
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testB[i] = t;
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len++;
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}
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return len;
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}
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TEST(ValidateMask32, testMask32_1) {
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ValidateMask32TestInfo testBasic[20];
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int test_len = testBasicInit(testBasic);
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for (int i = 0; i < test_len; i++) {
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const auto t = testBasic[i];
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EXPECT_EQ(1, validateMask32(t.data.a256, t.valid_mask,
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t.and_mask.a256, t.cmp_mask.a256,
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t.neg_mask));
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}
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}
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TEST(ValidateMask32, testMask32_2) {
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ValidateMask32TestInfo testBasic[20];
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int test_len = testBasicInit(testBasic);
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for (int left = 0; left <= 32; left++) {
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for (int right = 0; right + left < 32; right++) {
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u32 valid_mask = ONES32 << (left + right) >> left;
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for (int i = 0; i < test_len; i++) {
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const auto &t = testBasic[i];
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int bool_result;
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bool_result = !(valid_mask & t.neg_mask);
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EXPECT_EQ(bool_result, validateMask32(t.data.a256,
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valid_mask,
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t.and_mask.a256,
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t.cmp_mask.a256,
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0));
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bool_result = (valid_mask & t.neg_mask) == valid_mask;
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EXPECT_EQ(bool_result, validateMask32(t.data.a256,
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valid_mask,
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t.and_mask.a256,
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t.cmp_mask.a256,
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ONES32));
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}
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}
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}
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}
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TEST(ValidateMask32, testMask32_3) {
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ValidateMask32TestInfo testBasic[20];
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testing::internal::Random neg_mask_rand(451);
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int test_len = testBasicInit(testBasic);
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for (int left = 0; left <= 32; left++) {
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for (int right = 0; right + left < 32; right++) {
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u32 valid_mask = ONES32 << (left + right) >> left;
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for (int i = 0; i < test_len; i++) {
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const auto &t = testBasic[i];
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for (int j = 0; j < 5000; j++) {
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u32 neg_mask = neg_mask_rand.Generate(1u << 31);
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int bool_result = (neg_mask & valid_mask) ==
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(t.neg_mask & valid_mask);
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EXPECT_EQ(bool_result, validateMask32(t.data.a256,
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valid_mask,
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t.and_mask.a256,
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t.cmp_mask.a256,
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neg_mask));
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}
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}
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}
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}
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}
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