b09fefd1f6
currently supporting sparc64. After a `make depend all` there are three programs; testsoftfloat for testing against the SoftFloat in src/lib/libc/softfloat for reference purposes, testemufloat for testing the emulator source in src/lib/libc/sparc64/fpu and testfloat for testing with the installed libc. Support for other architectures can be added as needed. PR: 144900 Submitted by: Peter Jeremy
300 lines
10 KiB
C
300 lines
10 KiB
C
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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
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for testing the correctness of floating-point arithmetic complying to the
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IEC/IEEE Standard for Floating-Point.
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Written by John R. Hauser. More information is available through the Web
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page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'.
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THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
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has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
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TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
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PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
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AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
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Derivative works are acceptable, even for commercial purposes, so long as
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(1) they include prominent notice that the work is derivative, and (2) they
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include prominent notice akin to these four paragraphs for those parts of
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this code that are retained.
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===============================================================================
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include "milieu.h"
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#include "fail.h"
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#include "softfloat.h"
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#include "testCases.h"
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#include "testLoops.h"
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#include "systflags.h"
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#include "testFunction.h"
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static void catchSIGINT( int signalCode )
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{
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if ( stop ) exit( EXIT_FAILURE );
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stop = TRUE;
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}
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int
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main( int argc, char **argv )
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{
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char *argPtr;
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flag functionArgument;
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uint8 functionCode;
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int8 operands, roundingPrecision, roundingMode;
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fail_programName = "testfloat";
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if ( argc <= 1 ) goto writeHelpMessage;
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testCases_setLevel( 1 );
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trueName = "soft";
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testName = "syst";
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errorStop = FALSE;
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forever = FALSE;
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maxErrorCount = 20;
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trueFlagsPtr = &float_exception_flags;
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testFlagsFunctionPtr = syst_float_flags_clear;
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tininessModeName = 0;
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functionArgument = FALSE;
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functionCode = 0;
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operands = 0;
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roundingPrecision = 0;
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roundingMode = 0;
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--argc;
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++argv;
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while ( argc && ( argPtr = argv[ 0 ] ) ) {
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if ( argPtr[ 0 ] == '-' ) ++argPtr;
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if ( strcmp( argPtr, "help" ) == 0 ) {
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writeHelpMessage:
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fputs(
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"testfloat [<option>...] <function>\n"
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" <option>: (* is default)\n"
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" -help --Write this message and exit.\n"
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" -list --List all testable functions and exit.\n"
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" -level <num> --Testing level <num> (1 or 2).\n"
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" * -level 1\n"
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" -errors <num> --Stop each function test after <num> errors.\n"
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" * -errors 20\n"
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" -errorstop --Exit after first function with any error.\n"
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" -forever --Test one function repeatedly (implies `-level 2').\n"
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" -checkNaNs --Check for bitwise correctness of NaN results.\n"
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#ifdef FLOATX80
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" -precision32 --Only test rounding precision equivalent to float32.\n"
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" -precision64 --Only test rounding precision equivalent to float64.\n"
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" -precision80 --Only test maximum rounding precision.\n"
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#endif
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" -nearesteven --Only test rounding to nearest/even.\n"
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" -tozero --Only test rounding to zero.\n"
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" -down --Only test rounding down.\n"
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" -up --Only test rounding up.\n"
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" -tininessbefore --Underflow tininess detected before rounding.\n"
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" -tininessafter --Underflow tininess detected after rounding.\n"
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" <function>:\n"
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" int32_to_<float> <float>_add <float>_eq\n"
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" <float>_to_int32 <float>_sub <float>_le\n"
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" <float>_to_int32_round_to_zero <float>_mul <float>_lt\n"
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#ifdef BITS64
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" int64_to_<float> <float>_div <float>_eq_signaling\n"
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" <float>_to_int64 <float>_rem <float>_le_quiet\n"
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" <float>_to_int64_round_to_zero <float>_lt_quiet\n"
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" <float>_to_<float>\n"
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" <float>_round_to_int\n"
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" <float>_sqrt\n"
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#else
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" <float>_to_<float> <float>_div <float>_eq_signaling\n"
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" <float>_round_to_int <float>_rem <float>_le_quiet\n"
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" <float>_sqrt <float>_lt_quiet\n"
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#endif
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" -all1 --All 1-operand functions.\n"
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" -all2 --All 2-operand functions.\n"
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" -all --All functions.\n"
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" <float>:\n"
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" float32 --Single precision.\n"
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" float64 --Double precision.\n"
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#ifdef FLOATX80
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" floatx80 --Extended double precision.\n"
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#endif
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#ifdef FLOAT128
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" float128 --Quadruple precision.\n"
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#endif
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,
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stdout
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);
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return EXIT_SUCCESS;
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}
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else if ( strcmp( argPtr, "list" ) == 0 ) {
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for ( functionCode = 1;
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functionCode < NUM_FUNCTIONS;
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++functionCode
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) {
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if ( functionExists[ functionCode ] ) {
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puts( functions[ functionCode ].name );
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}
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}
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return EXIT_SUCCESS;
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}
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else if ( strcmp( argPtr, "level" ) == 0 ) {
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if ( argc < 2 ) goto optionError;
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testCases_setLevel( atoi( argv[ 1 ] ) );
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--argc;
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++argv;
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}
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else if ( strcmp( argPtr, "level1" ) == 0 ) {
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testCases_setLevel( 1 );
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}
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else if ( strcmp( argPtr, "level2" ) == 0 ) {
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testCases_setLevel( 2 );
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}
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else if ( strcmp( argPtr, "errors" ) == 0 ) {
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if ( argc < 2 ) {
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optionError:
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fail( "`%s' option requires numeric argument", argv[ 0 ] );
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}
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maxErrorCount = atoi( argv[ 1 ] );
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--argc;
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++argv;
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}
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else if ( strcmp( argPtr, "errorstop" ) == 0 ) {
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errorStop = TRUE;
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}
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else if ( strcmp( argPtr, "forever" ) == 0 ) {
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testCases_setLevel( 2 );
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forever = TRUE;
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}
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else if ( ( strcmp( argPtr, "checkNaNs" ) == 0 )
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|| ( strcmp( argPtr, "checknans" ) == 0 ) ) {
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checkNaNs = TRUE;
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}
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#ifdef FLOATX80
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else if ( strcmp( argPtr, "precision32" ) == 0 ) {
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roundingPrecision = 32;
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}
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else if ( strcmp( argPtr, "precision64" ) == 0 ) {
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roundingPrecision = 64;
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}
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else if ( strcmp( argPtr, "precision80" ) == 0 ) {
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roundingPrecision = 80;
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}
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#endif
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else if ( ( strcmp( argPtr, "nearesteven" ) == 0 )
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|| ( strcmp( argPtr, "nearest_even" ) == 0 ) ) {
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roundingMode = ROUND_NEAREST_EVEN;
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}
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else if ( ( strcmp( argPtr, "tozero" ) == 0 )
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|| ( strcmp( argPtr, "to_zero" ) == 0 ) ) {
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roundingMode = ROUND_TO_ZERO;
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}
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else if ( strcmp( argPtr, "down" ) == 0 ) {
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roundingMode = ROUND_DOWN;
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}
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else if ( strcmp( argPtr, "up" ) == 0 ) {
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roundingMode = ROUND_UP;
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}
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else if ( strcmp( argPtr, "tininessbefore" ) == 0 ) {
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float_detect_tininess = float_tininess_before_rounding;
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}
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else if ( strcmp( argPtr, "tininessafter" ) == 0 ) {
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float_detect_tininess = float_tininess_after_rounding;
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}
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else if ( strcmp( argPtr, "all1" ) == 0 ) {
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functionArgument = TRUE;
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functionCode = 0;
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operands = 1;
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}
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else if ( strcmp( argPtr, "all2" ) == 0 ) {
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functionArgument = TRUE;
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functionCode = 0;
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operands = 2;
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}
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else if ( strcmp( argPtr, "all" ) == 0 ) {
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functionArgument = TRUE;
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functionCode = 0;
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operands = 0;
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}
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else {
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for ( functionCode = 1;
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functionCode < NUM_FUNCTIONS;
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++functionCode
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) {
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if ( strcmp( argPtr, functions[ functionCode ].name ) == 0 ) {
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break;
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}
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}
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if ( functionCode == NUM_FUNCTIONS ) {
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fail( "Invalid option or function `%s'", argv[ 0 ] );
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}
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if ( ! functionExists[ functionCode ] ) {
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fail(
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"Function `%s' is not supported or cannot be tested",
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argPtr
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);
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}
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functionArgument = TRUE;
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}
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--argc;
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++argv;
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}
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if ( ! functionArgument ) fail( "Function argument required" );
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(void) signal( SIGINT, catchSIGINT );
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(void) signal( SIGTERM, catchSIGINT );
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if ( functionCode ) {
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if ( forever ) {
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if ( ! roundingPrecision ) roundingPrecision = 80;
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if ( ! roundingMode ) roundingMode = ROUND_NEAREST_EVEN;
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}
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testFunction( functionCode, roundingPrecision, roundingMode );
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}
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else {
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if ( forever ) {
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fail( "Can only test one function with `-forever' option" );
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}
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if ( operands == 1 ) {
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for ( functionCode = 1;
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functionCode < NUM_FUNCTIONS;
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++functionCode
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) {
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if ( functionExists[ functionCode ]
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&& ( functions[ functionCode ].numInputs == 1 ) ) {
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testFunction(
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functionCode, roundingPrecision, roundingMode );
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}
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}
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}
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else if ( operands == 2 ) {
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for ( functionCode = 1;
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functionCode < NUM_FUNCTIONS;
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++functionCode
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) {
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if ( functionExists[ functionCode ]
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&& ( functions[ functionCode ].numInputs == 2 ) ) {
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testFunction(
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functionCode, roundingPrecision, roundingMode );
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}
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}
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}
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else {
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for ( functionCode = 1;
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functionCode < NUM_FUNCTIONS;
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++functionCode
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) {
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if ( functionExists[ functionCode ] ) {
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testFunction(
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functionCode, roundingPrecision, roundingMode );
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}
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}
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}
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}
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exitWithStatus();
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}
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