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/*
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===============================================================================
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|
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This C source file is part of TestFloat, Release 2a, a package of programs
|
|
for testing the correctness of floating-point arithmetic complying to the
|
|
IEC/IEEE Standard for Floating-Point.
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|
|
Written by John R. Hauser. More information is available through the Web
|
|
page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'.
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|
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THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
|
|
has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
|
|
TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
|
|
PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
|
|
AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
|
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|
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Derivative works are acceptable, even for commercial purposes, so long as
|
|
(1) they include prominent notice that the work is derivative, and (2) they
|
|
include prominent notice akin to these four paragraphs for those parts of
|
|
this code that are retained.
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|
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Modified for use with or1ksim's testsuite.
|
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|
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Contributor Julius Baxter <julius.baxter@orsoc.se>
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|
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===============================================================================
|
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*/
|
|
/*
|
|
#include <stdlib.h>
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
*/
|
|
#include "or32-utils.h" // OR1k support C library
|
|
#include "milieu.h"
|
|
#include "fail.h"
|
|
#include "softfloat.h"
|
|
#include "slowfloat.h"
|
|
#include "testCases.h"
|
|
#include "testLoops.h"
|
|
|
|
int8 clearFlags( void )
|
|
{
|
|
int8 flags;
|
|
|
|
flags = float_exception_flags;
|
|
float_exception_flags = 0;
|
|
return flags;
|
|
|
|
}
|
|
|
|
enum {
|
|
INT32_TO_FLOAT32 = 1,
|
|
FLOAT32_TO_INT32,
|
|
FLOAT32_TO_INT32_ROUND_TO_ZERO,
|
|
FLOAT32_ROUND_TO_INT,
|
|
FLOAT32_ADD,
|
|
FLOAT32_SUB,
|
|
FLOAT32_MUL,
|
|
FLOAT32_DIV,
|
|
FLOAT32_REM,
|
|
// FLOAT32_SQRT,
|
|
FLOAT32_EQ,
|
|
FLOAT32_LE,
|
|
FLOAT32_LT,
|
|
FLOAT32_EQ_SIGNALING,
|
|
FLOAT32_LE_QUIET,
|
|
FLOAT32_LT_QUIET,
|
|
NUM_FUNCTIONS
|
|
};
|
|
static struct {
|
|
char *name;
|
|
int8 numInputs;
|
|
flag roundingPrecision, roundingMode;
|
|
flag tininessMode, tininessModeAtReducedPrecision;
|
|
} functions[ NUM_FUNCTIONS ] = {
|
|
{ 0, 0, 0, 0, 0, 0 },
|
|
{ "int32_to_float32", 1, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_to_int32", 1, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_to_int32_round_to_zero", 1, FALSE, FALSE, FALSE, FALSE },
|
|
{ "float32_round_to_int", 1, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_add", 2, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_sub", 2, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_mul", 2, FALSE, TRUE, TRUE, FALSE },
|
|
{ "float32_div", 2, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_rem", 2, FALSE, FALSE, FALSE, FALSE },
|
|
//{ "float32_sqrt", 1, FALSE, TRUE, FALSE, FALSE },
|
|
{ "float32_eq", 2, FALSE, FALSE, FALSE, FALSE },
|
|
{ "float32_le", 2, FALSE, FALSE, FALSE, FALSE },
|
|
{ "float32_lt", 2, FALSE, FALSE, FALSE, FALSE },
|
|
{ "float32_eq_signaling", 2, FALSE, FALSE, FALSE, FALSE },
|
|
{ "float32_le_quiet", 2, FALSE, FALSE, FALSE, FALSE },
|
|
{ "float32_lt_quiet", 2, FALSE, FALSE, FALSE, FALSE }
|
|
};
|
|
|
|
enum {
|
|
ROUND_NEAREST_EVEN = 1,
|
|
ROUND_TO_ZERO,
|
|
ROUND_DOWN,
|
|
ROUND_UP,
|
|
NUM_ROUNDINGMODES
|
|
};
|
|
enum {
|
|
TININESS_BEFORE_ROUNDING = 1,
|
|
TININESS_AFTER_ROUNDING,
|
|
NUM_TININESSMODES
|
|
};
|
|
|
|
static void
|
|
testFunctionVariety(
|
|
uint8 functionCode,
|
|
int8 roundingPrecision,
|
|
int8 roundingMode,
|
|
int8 tininessMode
|
|
)
|
|
{
|
|
uint8 roundingCode;
|
|
int8 tininessCode;
|
|
|
|
functionName = functions[ functionCode ].name;
|
|
if ( roundingPrecision == 32 ) {
|
|
roundingPrecisionName = "32";
|
|
}
|
|
else {
|
|
roundingPrecisionName = 0;
|
|
}
|
|
switch ( roundingMode ) {
|
|
case 0:
|
|
roundingModeName = 0;
|
|
roundingCode = float_round_nearest_even;
|
|
break;
|
|
case ROUND_NEAREST_EVEN:
|
|
roundingModeName = "nearest_even";
|
|
roundingCode = float_round_nearest_even;
|
|
break;
|
|
case ROUND_TO_ZERO:
|
|
roundingModeName = "to_zero";
|
|
roundingCode = float_round_to_zero;
|
|
break;
|
|
case ROUND_DOWN:
|
|
roundingModeName = "down";
|
|
roundingCode = float_round_down;
|
|
break;
|
|
case ROUND_UP:
|
|
roundingModeName = "up";
|
|
roundingCode = float_round_up;
|
|
break;
|
|
default: // To keep GCC happy
|
|
roundingModeName = "nearest_even";
|
|
roundingCode = float_round_nearest_even;
|
|
break;
|
|
}
|
|
float_rounding_mode = roundingCode;
|
|
slow_float_rounding_mode = roundingCode;
|
|
switch ( tininessMode ) {
|
|
case 0:
|
|
tininessModeName = 0;
|
|
tininessCode = float_tininess_after_rounding;
|
|
break;
|
|
case TININESS_BEFORE_ROUNDING:
|
|
tininessModeName = "before";
|
|
tininessCode = float_tininess_before_rounding;
|
|
break;
|
|
case TININESS_AFTER_ROUNDING:
|
|
tininessModeName = "after";
|
|
tininessCode = float_tininess_after_rounding;
|
|
break;
|
|
default:
|
|
tininessCode = -1; // to keep GCC happy
|
|
}
|
|
float_detect_tininess = tininessCode;
|
|
slow_float_detect_tininess = tininessCode;
|
|
printf( "Testing "/*, stderr*/ );
|
|
writeFunctionName( /*stderr*/ );
|
|
printf( ".\n"/*, stderr*/ );
|
|
switch ( functionCode ) {
|
|
case INT32_TO_FLOAT32:
|
|
test_a_int32_z_float32( slow_int32_to_float32, int32_to_float32 );
|
|
break;
|
|
case FLOAT32_TO_INT32:
|
|
test_a_float32_z_int32( slow_float32_to_int32, float32_to_int32 );
|
|
break;
|
|
case FLOAT32_TO_INT32_ROUND_TO_ZERO:
|
|
test_a_float32_z_int32(
|
|
slow_float32_to_int32_round_to_zero,
|
|
float32_to_int32_round_to_zero
|
|
);
|
|
break;
|
|
case FLOAT32_ROUND_TO_INT:
|
|
test_az_float32( slow_float32_round_to_int, float32_round_to_int );
|
|
break;
|
|
case FLOAT32_ADD:
|
|
test_abz_float32( slow_float32_add, float32_add );
|
|
break;
|
|
case FLOAT32_SUB:
|
|
test_abz_float32( slow_float32_sub, float32_sub );
|
|
break;
|
|
case FLOAT32_MUL:
|
|
test_abz_float32( slow_float32_mul, float32_mul );
|
|
break;
|
|
case FLOAT32_DIV:
|
|
test_abz_float32( slow_float32_div, float32_div );
|
|
break;
|
|
case FLOAT32_REM:
|
|
test_abz_float32( slow_float32_rem, float32_rem );
|
|
break;
|
|
// case FLOAT32_SQRT:
|
|
// test_az_float32( slow_float32_sqrt, float32_sqrt );
|
|
// break;
|
|
case FLOAT32_EQ:
|
|
test_ab_float32_z_flag( slow_float32_eq, float32_eq );
|
|
break;
|
|
case FLOAT32_LE:
|
|
test_ab_float32_z_flag( slow_float32_le, float32_le );
|
|
break;
|
|
case FLOAT32_LT:
|
|
test_ab_float32_z_flag( slow_float32_lt, float32_lt );
|
|
break;
|
|
case FLOAT32_EQ_SIGNALING:
|
|
test_ab_float32_z_flag(
|
|
slow_float32_eq_signaling, float32_eq_signaling );
|
|
break;
|
|
case FLOAT32_LE_QUIET:
|
|
test_ab_float32_z_flag( slow_float32_le_quiet, float32_le_quiet );
|
|
break;
|
|
case FLOAT32_LT_QUIET:
|
|
test_ab_float32_z_flag( slow_float32_lt_quiet, float32_lt_quiet );
|
|
break;
|
|
}
|
|
if ( ( errorStop && anyErrors ) || stop ) exitWithStatus();
|
|
|
|
}
|
|
|
|
static void
|
|
testFunction(
|
|
uint8 functionCode,
|
|
int8 roundingPrecisionIn,
|
|
int8 roundingModeIn,
|
|
int8 tininessModeIn
|
|
)
|
|
{
|
|
int8 roundingPrecision, roundingMode, tininessMode;
|
|
|
|
roundingPrecision = 32;
|
|
for (;;) {
|
|
if ( ! functions[ functionCode ].roundingPrecision ) {
|
|
roundingPrecision = 0;
|
|
}
|
|
else if ( roundingPrecisionIn ) {
|
|
roundingPrecision = roundingPrecisionIn;
|
|
}
|
|
for ( roundingMode = 1;
|
|
roundingMode < NUM_ROUNDINGMODES;
|
|
++roundingMode
|
|
) {
|
|
if ( ! functions[ functionCode ].roundingMode ) {
|
|
roundingMode = 0;
|
|
}
|
|
else if ( roundingModeIn ) {
|
|
roundingMode = roundingModeIn;
|
|
}
|
|
for ( tininessMode = 1;
|
|
tininessMode < NUM_TININESSMODES;
|
|
++tininessMode
|
|
) {
|
|
if ( ( roundingPrecision == 32 )
|
|
|| ( roundingPrecision == 64 ) ) {
|
|
if ( ! functions[ functionCode ]
|
|
.tininessModeAtReducedPrecision
|
|
) {
|
|
tininessMode = 0;
|
|
}
|
|
else if ( tininessModeIn ) {
|
|
tininessMode = tininessModeIn;
|
|
}
|
|
}
|
|
else {
|
|
if ( ! functions[ functionCode ].tininessMode ) {
|
|
tininessMode = 0;
|
|
}
|
|
else if ( tininessModeIn ) {
|
|
tininessMode = tininessModeIn;
|
|
}
|
|
}
|
|
testFunctionVariety(
|
|
functionCode, roundingPrecision, roundingMode, tininessMode
|
|
);
|
|
if ( tininessModeIn || ! tininessMode ) break;
|
|
}
|
|
if ( roundingModeIn || ! roundingMode ) break;
|
|
}
|
|
if ( roundingPrecisionIn || ! roundingPrecision ) break;
|
|
if ( roundingPrecision == 80 ) {
|
|
break;
|
|
}
|
|
else if ( roundingPrecision == 64 ) {
|
|
roundingPrecision = 80;
|
|
}
|
|
else if ( roundingPrecision == 32 ) {
|
|
roundingPrecision = 64;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
int
|
|
main( int argc, char **argv )
|
|
{
|
|
//char *argPtr;
|
|
flag functionArgument;
|
|
uint8 functionCode;
|
|
int8 operands, roundingPrecision, roundingMode, tininessMode;
|
|
/*
|
|
fail_programName = "testsoftfloat";
|
|
if ( argc <= 1 ) goto writeHelpMessage;
|
|
*/
|
|
testCases_setLevel( 1 );
|
|
trueName = "true";
|
|
testName = "soft";
|
|
errorStop = FALSE;
|
|
forever = FALSE;
|
|
maxErrorCount = 5000;
|
|
trueFlagsPtr = &slow_float_exception_flags;
|
|
testFlagsFunctionPtr = clearFlags;
|
|
functionArgument = TRUE;
|
|
functionCode = 0;
|
|
operands = 0;
|
|
roundingPrecision = 0;
|
|
roundingMode = 0;
|
|
tininessMode = 0;
|
|
/*
|
|
--argc;
|
|
++argv;
|
|
while ( argc && ( argPtr = argv[ 0 ] ) ) {
|
|
if ( argPtr[ 0 ] == '-' ) ++argPtr;
|
|
if ( strcmp( argPtr, "help" ) == 0 ) {
|
|
writeHelpMessage:
|
|
fputs(
|
|
"testsoftfloat [<option>...] <function>\n"
|
|
" <option>: (* is default)\n"
|
|
" -help --Write this message and exit.\n"
|
|
" -level <num> --Testing level <num> (1 or 2).\n"
|
|
" * -level 1\n"
|
|
" -errors <num> --Stop each function test after <num> errors.\n"
|
|
" * -errors 20\n"
|
|
" -errorstop --Exit after first function with any error.\n"
|
|
" -forever --Test one function repeatedly (implies `-level 2').\n"
|
|
#ifdef FLOATX80
|
|
" -precision32 --Only test rounding precision equivalent to float32.\n"
|
|
" -precision64 --Only test rounding precision equivalent to float64.\n"
|
|
" -precision80 --Only test maximum rounding precision.\n"
|
|
#endif
|
|
" -nearesteven --Only test rounding to nearest/even.\n"
|
|
" -tozero --Only test rounding to zero.\n"
|
|
" -down --Only test rounding down.\n"
|
|
" -up --Only test rounding up.\n"
|
|
" -tininessbefore --Only test underflow tininess before rounding.\n"
|
|
" -tininessafter --Only test underflow tininess after rounding.\n"
|
|
" <function>:\n"
|
|
" int32_to_<float> <float>_add <float>_eq\n"
|
|
" <float>_to_int32 <float>_sub <float>_le\n"
|
|
" <float>_to_int32_round_to_zero <float>_mul <float>_lt\n"
|
|
#ifdef BITS64
|
|
" int64_to_<float> <float>_div <float>_eq_signaling\n"
|
|
" <float>_to_int64 <float>_rem <float>_le_quiet\n"
|
|
" <float>_to_int64_round_to_zero <float>_lt_quiet\n"
|
|
" <float>_to_<float>\n"
|
|
" <float>_round_to_int\n"
|
|
" <float>_sqrt\n"
|
|
#else
|
|
" <float>_to_<float> <float>_div <float>_eq_signaling\n"
|
|
" <float>_round_to_int <float>_rem <float>_le_quiet\n"
|
|
" <float>_sqrt <float>_lt_quiet\n"
|
|
#endif
|
|
" -all1 --All 1-operand functions.\n"
|
|
" -all2 --All 2-operand functions.\n"
|
|
" -all --All functions.\n"
|
|
" <float>:\n"
|
|
" float32 --Single precision.\n"
|
|
" float64 --Double precision.\n"
|
|
#ifdef FLOATX80
|
|
" floatx80 --Extended double precision.\n"
|
|
#endif
|
|
#ifdef FLOAT128
|
|
" float128 --Quadruple precision.\n"
|
|
#endif
|
|
,
|
|
stdout
|
|
);
|
|
return EXIT_SUCCESS;
|
|
}
|
|
else if ( strcmp( argPtr, "level" ) == 0 ) {
|
|
if ( argc < 2 ) goto optionError;
|
|
testCases_setLevel( atoi( argv[ 1 ] ) );
|
|
--argc;
|
|
++argv;
|
|
}
|
|
else if ( strcmp( argPtr, "level1" ) == 0 ) {
|
|
testCases_setLevel( 1 );
|
|
}
|
|
else if ( strcmp( argPtr, "level2" ) == 0 ) {
|
|
testCases_setLevel( 2 );
|
|
}
|
|
else if ( strcmp( argPtr, "errors" ) == 0 ) {
|
|
if ( argc < 2 ) {
|
|
optionError:
|
|
fail( "`%s' option requires numeric argument", argv[ 0 ] );
|
|
}
|
|
maxErrorCount = atoi( argv[ 1 ] );
|
|
--argc;
|
|
++argv;
|
|
}
|
|
else if ( strcmp( argPtr, "errorstop" ) == 0 ) {
|
|
errorStop = TRUE;
|
|
}
|
|
else if ( strcmp( argPtr, "forever" ) == 0 ) {
|
|
testCases_setLevel( 2 );
|
|
forever = TRUE;
|
|
}
|
|
#ifdef FLOATX80
|
|
else if ( strcmp( argPtr, "precision32" ) == 0 ) {
|
|
roundingPrecision = 32;
|
|
}
|
|
else if ( strcmp( argPtr, "precision64" ) == 0 ) {
|
|
roundingPrecision = 64;
|
|
}
|
|
else if ( strcmp( argPtr, "precision80" ) == 0 ) {
|
|
roundingPrecision = 80;
|
|
}
|
|
#endif
|
|
else if ( ( strcmp( argPtr, "nearesteven" ) == 0 )
|
|
|| ( strcmp( argPtr, "nearest_even" ) == 0 ) ) {
|
|
roundingMode = ROUND_NEAREST_EVEN;
|
|
}
|
|
else if ( ( strcmp( argPtr, "tozero" ) == 0 )
|
|
|| ( strcmp( argPtr, "to_zero" ) == 0 ) ) {
|
|
roundingMode = ROUND_TO_ZERO;
|
|
}
|
|
else if ( strcmp( argPtr, "down" ) == 0 ) {
|
|
roundingMode = ROUND_DOWN;
|
|
}
|
|
else if ( strcmp( argPtr, "up" ) == 0 ) {
|
|
roundingMode = ROUND_UP;
|
|
}
|
|
else if ( strcmp( argPtr, "tininessbefore" ) == 0 ) {
|
|
tininessMode = TININESS_BEFORE_ROUNDING;
|
|
}
|
|
else if ( strcmp( argPtr, "tininessafter" ) == 0 ) {
|
|
tininessMode = TININESS_AFTER_ROUNDING;
|
|
}
|
|
else if ( strcmp( argPtr, "all1" ) == 0 ) {
|
|
functionArgument = TRUE;
|
|
functionCode = 0;
|
|
operands = 1;
|
|
}
|
|
else if ( strcmp( argPtr, "all2" ) == 0 ) {
|
|
functionArgument = TRUE;
|
|
functionCode = 0;
|
|
operands = 2;
|
|
}
|
|
else if ( strcmp( argPtr, "all" ) == 0 ) {
|
|
functionArgument = TRUE;
|
|
functionCode = 0;
|
|
operands = 0;
|
|
}
|
|
else {
|
|
for ( functionCode = 1;
|
|
functionCode < NUM_FUNCTIONS;
|
|
++functionCode
|
|
) {
|
|
if ( strcmp( argPtr, functions[ functionCode ].name ) == 0 ) {
|
|
break;
|
|
}
|
|
}
|
|
if ( functionCode == NUM_FUNCTIONS ) {
|
|
fail( "Invalid option or function `%s'", argv[ 0 ] );
|
|
}
|
|
functionArgument = TRUE;
|
|
}
|
|
--argc;
|
|
++argv;
|
|
}
|
|
|
|
*/
|
|
|
|
// Test just a single function
|
|
if ( functionCode ) {
|
|
testFunction(
|
|
functionCode, roundingPrecision, roundingMode, tininessMode );
|
|
}
|
|
else {
|
|
if ( operands == 1 ) {
|
|
for ( functionCode = 1;
|
|
functionCode < NUM_FUNCTIONS;
|
|
++functionCode
|
|
) {
|
|
if ( functions[ functionCode ].numInputs == 1 ) {
|
|
testFunction(
|
|
functionCode,
|
|
roundingPrecision,
|
|
roundingMode,
|
|
tininessMode
|
|
);
|
|
}
|
|
}
|
|
}
|
|
else if ( operands == 2 ) {
|
|
for ( functionCode = 1;
|
|
functionCode < NUM_FUNCTIONS;
|
|
++functionCode
|
|
) {
|
|
if ( functions[ functionCode ].numInputs == 2 ) {
|
|
testFunction(
|
|
functionCode,
|
|
roundingPrecision,
|
|
roundingMode,
|
|
tininessMode
|
|
);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
for ( functionCode = 1;
|
|
functionCode < NUM_FUNCTIONS;
|
|
++functionCode
|
|
) {
|
|
testFunction(
|
|
functionCode, roundingPrecision, roundingMode, tininessMode
|
|
);
|
|
}
|
|
}
|
|
}
|
|
exitWithStatus();
|
|
|
|
// Shouldn't reach here.
|
|
return 1;
|
|
}
|
|
|
|
|
No newline at end of file
|
No newline at end of file
|
