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Justine Tunney 2020-06-15 07:18:57 -07:00
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test/libc/nexgen32e/crc32_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/str/str.h"
#include "libc/testlib/hyperion.h"
#include "libc/testlib/testlib.h"
uint32_t crc32(uint32_t, const void *, int);
uint32_t crc32$pclmul(uint32_t, const void *, size_t);
uint32_t crc32$pclmul2(uint32_t, const void *, size_t);
TEST(crc32, testBigText) {
size_t size;
size = kHyperionSize;
EXPECT_EQ(0xe9ded8e6, crc32(0, kHyperion, size));
EXPECT_EQ(0xe9ded8e6, crc32_z(0, kHyperion, size));
if (X86_HAVE(PCLMUL)) {
size = ROUNDDOWN(size, 64);
EXPECT_EQ(0xc7adc04f, crc32(0, kHyperion, size));
EXPECT_EQ(0xc7adc04f, crc32_z(0, kHyperion, size));
EXPECT_EQ(0xc7adc04f,
0xffffffffu ^ crc32$pclmul(0 ^ 0xffffffffu, kHyperion, size));
}
}