47 lines
2.7 KiB
C
47 lines
2.7 KiB
C
|
/*-*- 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/intrin/phaddsw.h"
|
||
|
|
#include "libc/str/str.h"
|
||
|
|
#include "libc/testlib/testlib.h"
|
||
|
|
#include "tool/viz/lib/formatstringtable-testlib.h"
|
||
|
|
/* clang-format off */
|
||
|
|
|
||
|
|
FIXTURE(phaddsw, disableHardwareExtensions) {
|
||
|
|
memset((/*unconst*/ void *)kCpuids, 0, sizeof(kCpuids));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(phaddsw, testOverflow_saturates) {
|
||
|
|
short M[2][8] = {
|
||
|
|
{0x7fff, 0, 0x7fff, 1, 0x7fff, 0x7fff, 20777, -16389},
|
||
|
|
{-28040, 13318, -1336, -24798, -13876, 3599, -7346, -23575},
|
||
|
|
};
|
||
|
|
phaddsw(M[0], M[0], M[1]);
|
||
|
|
EXPECT_SHRTMATRIXEQ(2, 8, M, "\n\
|
||
|
|
32767 32767 32767 4388 -14722 -26134 -10277 -30921\n\
|
||
|
|
-28040 13318 -1336 -24798 -13876 3599 -7346 -23575");
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(phaddsw, testAliasing_isOk) {
|
||
|
|
short M[1][8] = {{0,1,2,3,4,5,6,7}};
|
||
|
|
phaddsw(M[0],M[0],M[0]);
|
||
|
|
EXPECT_SHRTMATRIXEQ(1, 8, M, "\n\
|
||
|
|
1 5 9 13 1 5 9 13");
|
||
|
|
}
|