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/*
+--------------------------------------------------------------------------+
| CHStone : a suite of benchmark programs for C-based High-Level Synthesis |
| ======================================================================== |
| |
| * Collected and Modified : Y. Hara, H. Tomiyama, S. Honda, |
| H. Takada and K. Ishii |
| Nagoya University, Japan |
| |
| * Remark : |
| 1. This source code is modified to unify the formats of the benchmark |
| programs in CHStone. |
| 2. Test vectors are added for CHStone. |
| 3. If "main_result" is 0 at the end of the program, the program is |
| correctly executed. |
| 4. Please follow the copyright of each benchmark program. |
+--------------------------------------------------------------------------+
*/
/*
* Copyright (C) 2008
* Y. Hara, H. Tomiyama, S. Honda, H. Takada and K. Ishii
* Nagoya University, Japan
* All rights reserved.
*
* Disclaimer of Warranty
*
* These software programs are available to the user without any license fee or
* royalty on an "as is" basis. The authors disclaims any and all warranties,
* whether express, implied, or statuary, including any implied warranties or
* merchantability or of fitness for a particular purpose. In no event shall the
* copyright-holder be liable for any incidental, punitive, or consequential damages
* of any kind whatsoever arising from the use of these programs. This disclaimer
* of warranty extends to the user of these programs and user's customers, employees,
* agents, transferees, successors, and assigns.
*
*/
#include <stdio.h>
#include "softfloat.c"
float64
float64_abs (float64 x)
{
return (x & 0x7fffffffffffffffULL);
}
float64
local_sin (float64 rad)
{
float64 app;
float64 diff;
float64 m_rad2;
int inc;
app = diff = rad;
inc = 1;
m_rad2 = float64_neg (float64_mul (rad, rad));
do
{
diff = float64_div (float64_mul (diff, m_rad2),
int32_to_float64 ((2 * inc) * (2 * inc + 1)));
app = float64_add (app, diff);
inc++;
}
while (float64_ge (float64_abs (diff), 0x3ee4f8b588e368f1ULL)); /* 0.00001 */
return app;
}
double
ullong_to_double (unsigned long long x)
{
union
{
double d;
unsigned long long ll;
} t;
t.ll = x;
return t.d;
}
/*
+--------------------------------------------------------------------------+
| * Test Vectors (added for CHStone) |
| test_in : input data |
| test_out : expected output data |
+--------------------------------------------------------------------------+
*/
#define N 36
const float64 test_in[N] = {
0x0000000000000000ULL, /* 0 */
0x3fc65717fced55c1ULL, /* PI/18 */
0x3fd65717fced55c1ULL, /* PI/9 */
0x3fe0c151fdb20051ULL, /* PI/6 */
0x3fe65717fced55c1ULL, /* 2PI/9 */
0x3febecddfc28ab31ULL, /* 5PI/18 */
0x3ff0c151fdb20051ULL, /* PI/3 */
0x3ff38c34fd4fab09ULL, /* 7PI/18 */
0x3ff65717fced55c1ULL, /* 4PI/9 */
0x3ff921fafc8b0079ULL, /* PI/2 */
0x3ffbecddfc28ab31ULL, /* 5PI/9 */
0x3ffeb7c0fbc655e9ULL, /* 11PI/18 */
0x4000c151fdb20051ULL, /* 2PI/3 */
0x400226c37d80d5adULL, /* 13PI/18 */
0x40038c34fd4fab09ULL, /* 7PI/9 */
0x4004f1a67d1e8065ULL, /* 5PI/6 */
0x40065717fced55c1ULL, /* 8PI/9 */
0x4007bc897cbc2b1dULL, /* 17PI/18 */
0x400921fafc8b0079ULL, /* PI */
0x400a876c7c59d5d5ULL, /* 19PI/18 */
0x400becddfc28ab31ULL, /* 10PI/9 */
0x400d524f7bf7808dULL, /* 7PI/6 */
0x400eb7c0fbc655e9ULL, /* 11PI/9 */
0x40100e993dca95a3ULL, /* 23PI/18 */
0x4010c151fdb20051ULL, /* 8PI/6 */
0x4011740abd996affULL, /* 25PI/18 */
0x401226c37d80d5adULL, /* 13PI/9 */
0x4012d97c3d68405bULL, /* 3PI/2 */
0x40138c34fd4fab09ULL, /* 14PI/9 */
0x40143eedbd3715b7ULL, /* 29PI/18 */
0x4014f1a67d1e8065ULL, /* 15PI/9 */
0x4015a45f3d05eb13ULL, /* 31PI/18 */
0x40165717fced55c1ULL, /* 16PI/9 */
0x401709d0bcd4c06fULL, /* 33PI/18 */
0x4017bc897cbc2b1dULL, /* 17PI/9 */
0x40186f423ca395cbULL
}; /* 35PI/18 */
const float64 test_out[N] = {
0x0000000000000000ULL, /* 0.000000 */
0x3fc63a1a335aadcdULL, /* 0.173648 */
0x3fd5e3a82b09bf3eULL, /* 0.342020 */
0x3fdfffff91f9aa91ULL, /* 0.500000 */
0x3fe491b716c242e3ULL, /* 0.642787 */
0x3fe8836f672614a6ULL, /* 0.766044 */
0x3febb67ac40b2bedULL, /* 0.866025 */
0x3fee11f6127e28adULL, /* 0.939693 */
0x3fef838b6adffac0ULL, /* 0.984808 */
0x3fefffffe1cbd7aaULL, /* 1.000000 */
0x3fef838bb0147989ULL, /* 0.984808 */
0x3fee11f692d962b4ULL, /* 0.939693 */
0x3febb67b77c0142dULL, /* 0.866026 */
0x3fe883709d4ea869ULL, /* 0.766045 */
0x3fe491b81d72d8e8ULL, /* 0.642788 */
0x3fe00000ea5f43c8ULL, /* 0.500000 */
0x3fd5e3aa4e0590c5ULL, /* 0.342021 */
0x3fc63a1d2189552cULL, /* 0.173648 */
0x3ea6aedffc454b91ULL, /* 0.000001 */
0xbfc63a1444ddb37cULL, /* -0.173647 */
0xbfd5e3a4e68f8f3eULL, /* -0.342019 */
0xbfdffffd494cf96bULL, /* -0.499999 */
0xbfe491b61cb9a3d3ULL, /* -0.642787 */
0xbfe8836eb2dcf815ULL, /* -0.766044 */
0xbfebb67a740aae32ULL, /* -0.866025 */
0xbfee11f5912d2157ULL, /* -0.939692 */
0xbfef838b1ac64afcULL, /* -0.984808 */
0xbfefffffc2e5dc8fULL, /* -1.000000 */
0xbfef838b5ea2e7eaULL, /* -0.984808 */
0xbfee11f7112dae27ULL, /* -0.939693 */
0xbfebb67c2c31cb4aULL, /* -0.866026 */
0xbfe883716e6fd781ULL, /* -0.766045 */
0xbfe491b9cd1b5d56ULL, /* -0.642789 */
0xbfe000021d0ca30dULL, /* -0.500001 */
0xbfd5e3ad0a69caf7ULL, /* -0.342021 */
0xbfc63a23c48863ddULL
}; /* -0.173649 */
int
main ()
{
int main_result;
int i;
main_result = 0;
for (i = 0; i < N; i++)
{
float64 result;
result = local_sin (test_in[i]);
main_result += (result != test_out[i]);
printf
("input=%016llx expected=%016llx output=%016llx (%lf)\n",
test_in[i], test_out[i], result, ullong_to_double (result));
}
printf ("%d\n", main_result);
return main_result;
}
|
