qemu/tests/fp/fp-test.c
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   1/*
   2 * fp-test.c - test QEMU's softfloat implementation using Berkeley's Testfloat
   3 *
   4 * Copyright (C) 2018, Emilio G. Cota <cota@braap.org>
   5 *
   6 * License: GNU GPL, version 2 or later.
   7 *   See the COPYING file in the top-level directory.
   8 *
   9 * This file is derived from testfloat/source/testsoftfloat.c. Its copyright
  10 * info follows:
  11 *
  12 * Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
  13 * University of California.  All rights reserved.
  14 *
  15 * Redistribution and use in source and binary forms, with or without
  16 * modification, are permitted provided that the following conditions are met:
  17 *
  18 *  1. Redistributions of source code must retain the above copyright notice,
  19 *     this list of conditions, and the following disclaimer.
  20 *
  21 *  2. Redistributions in binary form must reproduce the above copyright notice,
  22 *     this list of conditions, and the following disclaimer in the
  23 *     documentation and/or other materials provided with the distribution.
  24 *
  25 *  3. Neither the name of the University nor the names of its contributors may
  26 *     be used to endorse or promote products derived from this software without
  27 *     specific prior written permission.
  28 *
  29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
  30 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  31 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
  32 * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
  33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  35 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  36 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  39 */
  40#ifndef HW_POISON_H
  41#error Must define HW_POISON_H to work around TARGET_* poisoning
  42#endif
  43
  44#include "qemu/osdep.h"
  45#include "qemu/cutils.h"
  46#include <math.h>
  47#include "fpu/softfloat.h"
  48#include "platform.h"
  49
  50#include "fail.h"
  51#include "slowfloat.h"
  52#include "functions.h"
  53#include "genCases.h"
  54#include "verCases.h"
  55#include "writeCase.h"
  56#include "testLoops.h"
  57
  58typedef float16_t (*abz_f16)(float16_t, float16_t);
  59typedef bool (*ab_f16_z_bool)(float16_t, float16_t);
  60typedef float32_t (*abz_f32)(float32_t, float32_t);
  61typedef bool (*ab_f32_z_bool)(float32_t, float32_t);
  62typedef float64_t (*abz_f64)(float64_t, float64_t);
  63typedef bool (*ab_f64_z_bool)(float64_t, float64_t);
  64typedef void (*abz_extF80M)(const extFloat80_t *, const extFloat80_t *,
  65                            extFloat80_t *);
  66typedef bool (*ab_extF80M_z_bool)(const extFloat80_t *, const extFloat80_t *);
  67typedef void (*abz_f128M)(const float128_t *, const float128_t *, float128_t *);
  68typedef bool (*ab_f128M_z_bool)(const float128_t *, const float128_t *);
  69
  70static const char * const round_mode_names[] = {
  71    [ROUND_NEAR_EVEN] = "even",
  72    [ROUND_MINMAG] = "zero",
  73    [ROUND_MIN] = "down",
  74    [ROUND_MAX] = "up",
  75    [ROUND_NEAR_MAXMAG] = "tieaway",
  76    [ROUND_ODD] = "odd",
  77};
  78static unsigned int *test_ops;
  79static unsigned int n_test_ops;
  80static unsigned int n_max_errors = 20;
  81static unsigned int test_round_mode = ROUND_NEAR_EVEN;
  82static unsigned int *round_modes;
  83static unsigned int n_round_modes;
  84static int test_level = 1;
  85static uint8_t slow_init_flags;
  86static uint8_t qemu_init_flags;
  87
  88/* qemu softfloat status */
  89static float_status qsf;
  90
  91static const char commands_string[] =
  92    "operations:\n"
  93    "    <int>_to_<float>            <float>_add      <float>_eq\n"
  94    "    <float>_to_<int>            <float>_sub      <float>_le\n"
  95    "    <float>_to_<int>_r_minMag   <float>_mul      <float>_lt\n"
  96    "    <float>_to_<float>          <float>_mulAdd   <float>_eq_signaling\n"
  97    "    <float>_roundToInt          <float>_div      <float>_le_quiet\n"
  98    "                                <float>_rem      <float>_lt_quiet\n"
  99    "                                <float>_sqrt\n"
 100    "    Where <int>: ui32, ui64, i32, i64\n"
 101    "          <float>: f16, f32, f64, extF80, f128\n"
 102    "    If no operation is provided, all the above are tested\n"
 103    "options:\n"
 104    " -e = max error count per test. Default: 20. Set no limit with 0\n"
 105    " -f = initial FP exception flags (vioux). Default: none\n"
 106    " -l = thoroughness level (1 (default), 2)\n"
 107    " -r = rounding mode (even (default), zero, down, up, tieaway, odd)\n"
 108    "      Set to 'all' to test all rounding modes, if applicable\n"
 109    " -s = stop when a test fails";
 110
 111static void usage_complete(int argc, char *argv[])
 112{
 113    fprintf(stderr, "Usage: %s [options] [operation1 ...]\n", argv[0]);
 114    fprintf(stderr, "%s\n", commands_string);
 115    exit(EXIT_FAILURE);
 116}
 117
 118/* keep wrappers separate but do not bother defining headers for all of them */
 119#include "wrap.inc.c"
 120
 121static void not_implemented(void)
 122{
 123    fprintf(stderr, "Not implemented.\n");
 124}
 125
 126static bool blacklisted(unsigned op, int rmode)
 127{
 128    /* odd has not been implemented for any 80-bit ops */
 129    if (rmode == softfloat_round_odd) {
 130        switch (op) {
 131        case EXTF80_TO_UI32:
 132        case EXTF80_TO_UI64:
 133        case EXTF80_TO_I32:
 134        case EXTF80_TO_I64:
 135        case EXTF80_TO_UI32_R_MINMAG:
 136        case EXTF80_TO_UI64_R_MINMAG:
 137        case EXTF80_TO_I32_R_MINMAG:
 138        case EXTF80_TO_I64_R_MINMAG:
 139        case EXTF80_TO_F16:
 140        case EXTF80_TO_F32:
 141        case EXTF80_TO_F64:
 142        case EXTF80_TO_F128:
 143        case EXTF80_ROUNDTOINT:
 144        case EXTF80_ADD:
 145        case EXTF80_SUB:
 146        case EXTF80_MUL:
 147        case EXTF80_DIV:
 148        case EXTF80_REM:
 149        case EXTF80_SQRT:
 150        case EXTF80_EQ:
 151        case EXTF80_LE:
 152        case EXTF80_LT:
 153        case EXTF80_EQ_SIGNALING:
 154        case EXTF80_LE_QUIET:
 155        case EXTF80_LT_QUIET:
 156        case UI32_TO_EXTF80:
 157        case UI64_TO_EXTF80:
 158        case I32_TO_EXTF80:
 159        case I64_TO_EXTF80:
 160        case F16_TO_EXTF80:
 161        case F32_TO_EXTF80:
 162        case F64_TO_EXTF80:
 163        case F128_TO_EXTF80:
 164            return true;
 165        }
 166    }
 167    return false;
 168}
 169
 170static void do_testfloat(int op, int rmode, bool exact)
 171{
 172    abz_f16 true_abz_f16;
 173    abz_f16 subj_abz_f16;
 174    ab_f16_z_bool true_f16_z_bool;
 175    ab_f16_z_bool subj_f16_z_bool;
 176    abz_f32 true_abz_f32;
 177    abz_f32 subj_abz_f32;
 178    ab_f32_z_bool true_ab_f32_z_bool;
 179    ab_f32_z_bool subj_ab_f32_z_bool;
 180    abz_f64 true_abz_f64;
 181    abz_f64 subj_abz_f64;
 182    ab_f64_z_bool true_ab_f64_z_bool;
 183    ab_f64_z_bool subj_ab_f64_z_bool;
 184    abz_extF80M true_abz_extF80M;
 185    abz_extF80M subj_abz_extF80M;
 186    ab_extF80M_z_bool true_ab_extF80M_z_bool;
 187    ab_extF80M_z_bool subj_ab_extF80M_z_bool;
 188    abz_f128M true_abz_f128M;
 189    abz_f128M subj_abz_f128M;
 190    ab_f128M_z_bool true_ab_f128M_z_bool;
 191    ab_f128M_z_bool subj_ab_f128M_z_bool;
 192
 193    fputs(">> Testing ", stderr);
 194    verCases_writeFunctionName(stderr);
 195    fputs("\n", stderr);
 196
 197    if (blacklisted(op, rmode)) {
 198        not_implemented();
 199        return;
 200    }
 201
 202    switch (op) {
 203    case UI32_TO_F16:
 204        test_a_ui32_z_f16(slow_ui32_to_f16, qemu_ui32_to_f16);
 205        break;
 206    case UI32_TO_F32:
 207        test_a_ui32_z_f32(slow_ui32_to_f32, qemu_ui32_to_f32);
 208        break;
 209    case UI32_TO_F64:
 210        test_a_ui32_z_f64(slow_ui32_to_f64, qemu_ui32_to_f64);
 211        break;
 212    case UI32_TO_EXTF80:
 213        not_implemented();
 214        break;
 215    case UI32_TO_F128:
 216        not_implemented();
 217        break;
 218    case UI64_TO_F16:
 219        test_a_ui64_z_f16(slow_ui64_to_f16, qemu_ui64_to_f16);
 220        break;
 221    case UI64_TO_F32:
 222        test_a_ui64_z_f32(slow_ui64_to_f32, qemu_ui64_to_f32);
 223        break;
 224    case UI64_TO_F64:
 225        test_a_ui64_z_f64(slow_ui64_to_f64, qemu_ui64_to_f64);
 226        break;
 227    case UI64_TO_EXTF80:
 228        not_implemented();
 229        break;
 230    case UI64_TO_F128:
 231        test_a_ui64_z_f128(slow_ui64_to_f128M, qemu_ui64_to_f128M);
 232        break;
 233    case I32_TO_F16:
 234        test_a_i32_z_f16(slow_i32_to_f16, qemu_i32_to_f16);
 235        break;
 236    case I32_TO_F32:
 237        test_a_i32_z_f32(slow_i32_to_f32, qemu_i32_to_f32);
 238        break;
 239    case I32_TO_F64:
 240        test_a_i32_z_f64(slow_i32_to_f64, qemu_i32_to_f64);
 241        break;
 242    case I32_TO_EXTF80:
 243        test_a_i32_z_extF80(slow_i32_to_extF80M, qemu_i32_to_extF80M);
 244        break;
 245    case I32_TO_F128:
 246        test_a_i32_z_f128(slow_i32_to_f128M, qemu_i32_to_f128M);
 247        break;
 248    case I64_TO_F16:
 249        test_a_i64_z_f16(slow_i64_to_f16, qemu_i64_to_f16);
 250        break;
 251    case I64_TO_F32:
 252        test_a_i64_z_f32(slow_i64_to_f32, qemu_i64_to_f32);
 253        break;
 254    case I64_TO_F64:
 255        test_a_i64_z_f64(slow_i64_to_f64, qemu_i64_to_f64);
 256        break;
 257    case I64_TO_EXTF80:
 258        test_a_i64_z_extF80(slow_i64_to_extF80M, qemu_i64_to_extF80M);
 259        break;
 260    case I64_TO_F128:
 261        test_a_i64_z_f128(slow_i64_to_f128M, qemu_i64_to_f128M);
 262        break;
 263    case F16_TO_UI32:
 264        test_a_f16_z_ui32_rx(slow_f16_to_ui32, qemu_f16_to_ui32, rmode, exact);
 265        break;
 266    case F16_TO_UI64:
 267        test_a_f16_z_ui64_rx(slow_f16_to_ui64, qemu_f16_to_ui64, rmode, exact);
 268        break;
 269    case F16_TO_I32:
 270        test_a_f16_z_i32_rx(slow_f16_to_i32, qemu_f16_to_i32, rmode, exact);
 271        break;
 272    case F16_TO_I64:
 273        test_a_f16_z_i64_rx(slow_f16_to_i64, qemu_f16_to_i64, rmode, exact);
 274        break;
 275    case F16_TO_UI32_R_MINMAG:
 276        test_a_f16_z_ui32_x(slow_f16_to_ui32_r_minMag,
 277                            qemu_f16_to_ui32_r_minMag, exact);
 278        break;
 279    case F16_TO_UI64_R_MINMAG:
 280        test_a_f16_z_ui64_x(slow_f16_to_ui64_r_minMag,
 281                            qemu_f16_to_ui64_r_minMag, exact);
 282        break;
 283    case F16_TO_I32_R_MINMAG:
 284        test_a_f16_z_i32_x(slow_f16_to_i32_r_minMag, qemu_f16_to_i32_r_minMag,
 285                           exact);
 286        break;
 287    case F16_TO_I64_R_MINMAG:
 288        test_a_f16_z_i64_x(slow_f16_to_i64_r_minMag, qemu_f16_to_i64_r_minMag,
 289                           exact);
 290        break;
 291    case F16_TO_F32:
 292        test_a_f16_z_f32(slow_f16_to_f32, qemu_f16_to_f32);
 293        break;
 294    case F16_TO_F64:
 295        test_a_f16_z_f64(slow_f16_to_f64, qemu_f16_to_f64);
 296        break;
 297    case F16_TO_EXTF80:
 298        not_implemented();
 299        break;
 300    case F16_TO_F128:
 301        not_implemented();
 302        break;
 303    case F16_ROUNDTOINT:
 304        test_az_f16_rx(slow_f16_roundToInt, qemu_f16_roundToInt, rmode, exact);
 305        break;
 306    case F16_ADD:
 307        true_abz_f16 = slow_f16_add;
 308        subj_abz_f16 = qemu_f16_add;
 309        goto test_abz_f16;
 310    case F16_SUB:
 311        true_abz_f16 = slow_f16_sub;
 312        subj_abz_f16 = qemu_f16_sub;
 313        goto test_abz_f16;
 314    case F16_MUL:
 315        true_abz_f16 = slow_f16_mul;
 316        subj_abz_f16 = qemu_f16_mul;
 317        goto test_abz_f16;
 318    case F16_DIV:
 319        true_abz_f16 = slow_f16_div;
 320        subj_abz_f16 = qemu_f16_div;
 321        goto test_abz_f16;
 322    case F16_REM:
 323        not_implemented();
 324        break;
 325    test_abz_f16:
 326        test_abz_f16(true_abz_f16, subj_abz_f16);
 327        break;
 328    case F16_MULADD:
 329        test_abcz_f16(slow_f16_mulAdd, qemu_f16_mulAdd);
 330        break;
 331    case F16_SQRT:
 332        test_az_f16(slow_f16_sqrt, qemu_f16_sqrt);
 333        break;
 334    case F16_EQ:
 335        true_f16_z_bool = slow_f16_eq;
 336        subj_f16_z_bool = qemu_f16_eq;
 337        goto test_ab_f16_z_bool;
 338    case F16_LE:
 339        true_f16_z_bool = slow_f16_le;
 340        subj_f16_z_bool = qemu_f16_le;
 341        goto test_ab_f16_z_bool;
 342    case F16_LT:
 343        true_f16_z_bool = slow_f16_lt;
 344        subj_f16_z_bool = qemu_f16_lt;
 345        goto test_ab_f16_z_bool;
 346    case F16_EQ_SIGNALING:
 347        true_f16_z_bool = slow_f16_eq_signaling;
 348        subj_f16_z_bool = qemu_f16_eq_signaling;
 349        goto test_ab_f16_z_bool;
 350    case F16_LE_QUIET:
 351        true_f16_z_bool = slow_f16_le_quiet;
 352        subj_f16_z_bool = qemu_f16_le_quiet;
 353        goto test_ab_f16_z_bool;
 354    case F16_LT_QUIET:
 355        true_f16_z_bool = slow_f16_lt_quiet;
 356        subj_f16_z_bool = qemu_f16_lt_quiet;
 357    test_ab_f16_z_bool:
 358        test_ab_f16_z_bool(true_f16_z_bool, subj_f16_z_bool);
 359        break;
 360    case F32_TO_UI32:
 361        test_a_f32_z_ui32_rx(slow_f32_to_ui32, qemu_f32_to_ui32, rmode, exact);
 362        break;
 363    case F32_TO_UI64:
 364        test_a_f32_z_ui64_rx(slow_f32_to_ui64, qemu_f32_to_ui64, rmode, exact);
 365        break;
 366    case F32_TO_I32:
 367        test_a_f32_z_i32_rx(slow_f32_to_i32, qemu_f32_to_i32, rmode, exact);
 368        break;
 369    case F32_TO_I64:
 370        test_a_f32_z_i64_rx(slow_f32_to_i64, qemu_f32_to_i64, rmode, exact);
 371        break;
 372    case F32_TO_UI32_R_MINMAG:
 373        test_a_f32_z_ui32_x(slow_f32_to_ui32_r_minMag,
 374                            qemu_f32_to_ui32_r_minMag, exact);
 375        break;
 376    case F32_TO_UI64_R_MINMAG:
 377        test_a_f32_z_ui64_x(slow_f32_to_ui64_r_minMag,
 378                            qemu_f32_to_ui64_r_minMag, exact);
 379        break;
 380    case F32_TO_I32_R_MINMAG:
 381        test_a_f32_z_i32_x(slow_f32_to_i32_r_minMag, qemu_f32_to_i32_r_minMag,
 382                           exact);
 383        break;
 384    case F32_TO_I64_R_MINMAG:
 385        test_a_f32_z_i64_x(slow_f32_to_i64_r_minMag, qemu_f32_to_i64_r_minMag,
 386                           exact);
 387        break;
 388    case F32_TO_F16:
 389        test_a_f32_z_f16(slow_f32_to_f16, qemu_f32_to_f16);
 390        break;
 391    case F32_TO_F64:
 392        test_a_f32_z_f64(slow_f32_to_f64, qemu_f32_to_f64);
 393        break;
 394    case F32_TO_EXTF80:
 395        test_a_f32_z_extF80(slow_f32_to_extF80M, qemu_f32_to_extF80M);
 396        break;
 397    case F32_TO_F128:
 398        test_a_f32_z_f128(slow_f32_to_f128M, qemu_f32_to_f128M);
 399        break;
 400    case F32_ROUNDTOINT:
 401        test_az_f32_rx(slow_f32_roundToInt, qemu_f32_roundToInt, rmode, exact);
 402        break;
 403    case F32_ADD:
 404        true_abz_f32 = slow_f32_add;
 405        subj_abz_f32 = qemu_f32_add;
 406        goto test_abz_f32;
 407    case F32_SUB:
 408        true_abz_f32 = slow_f32_sub;
 409        subj_abz_f32 = qemu_f32_sub;
 410        goto test_abz_f32;
 411    case F32_MUL:
 412        true_abz_f32 = slow_f32_mul;
 413        subj_abz_f32 = qemu_f32_mul;
 414        goto test_abz_f32;
 415    case F32_DIV:
 416        true_abz_f32 = slow_f32_div;
 417        subj_abz_f32 = qemu_f32_div;
 418        goto test_abz_f32;
 419    case F32_REM:
 420        true_abz_f32 = slow_f32_rem;
 421        subj_abz_f32 = qemu_f32_rem;
 422    test_abz_f32:
 423        test_abz_f32(true_abz_f32, subj_abz_f32);
 424        break;
 425    case F32_MULADD:
 426        test_abcz_f32(slow_f32_mulAdd, qemu_f32_mulAdd);
 427        break;
 428    case F32_SQRT:
 429        test_az_f32(slow_f32_sqrt, qemu_f32_sqrt);
 430        break;
 431    case F32_EQ:
 432        true_ab_f32_z_bool = slow_f32_eq;
 433        subj_ab_f32_z_bool = qemu_f32_eq;
 434        goto test_ab_f32_z_bool;
 435    case F32_LE:
 436        true_ab_f32_z_bool = slow_f32_le;
 437        subj_ab_f32_z_bool = qemu_f32_le;
 438        goto test_ab_f32_z_bool;
 439    case F32_LT:
 440        true_ab_f32_z_bool = slow_f32_lt;
 441        subj_ab_f32_z_bool = qemu_f32_lt;
 442        goto test_ab_f32_z_bool;
 443    case F32_EQ_SIGNALING:
 444        true_ab_f32_z_bool = slow_f32_eq_signaling;
 445        subj_ab_f32_z_bool = qemu_f32_eq_signaling;
 446        goto test_ab_f32_z_bool;
 447    case F32_LE_QUIET:
 448        true_ab_f32_z_bool = slow_f32_le_quiet;
 449        subj_ab_f32_z_bool = qemu_f32_le_quiet;
 450        goto test_ab_f32_z_bool;
 451    case F32_LT_QUIET:
 452        true_ab_f32_z_bool = slow_f32_lt_quiet;
 453        subj_ab_f32_z_bool = qemu_f32_lt_quiet;
 454    test_ab_f32_z_bool:
 455        test_ab_f32_z_bool(true_ab_f32_z_bool, subj_ab_f32_z_bool);
 456        break;
 457    case F64_TO_UI32:
 458        test_a_f64_z_ui32_rx(slow_f64_to_ui32, qemu_f64_to_ui32, rmode, exact);
 459        break;
 460    case F64_TO_UI64:
 461        test_a_f64_z_ui64_rx(slow_f64_to_ui64, qemu_f64_to_ui64, rmode, exact);
 462        break;
 463    case F64_TO_I32:
 464        test_a_f64_z_i32_rx(slow_f64_to_i32, qemu_f64_to_i32, rmode, exact);
 465        break;
 466    case F64_TO_I64:
 467        test_a_f64_z_i64_rx(slow_f64_to_i64, qemu_f64_to_i64, rmode, exact);
 468        break;
 469    case F64_TO_UI32_R_MINMAG:
 470        test_a_f64_z_ui32_x(slow_f64_to_ui32_r_minMag,
 471                            qemu_f64_to_ui32_r_minMag, exact);
 472        break;
 473    case F64_TO_UI64_R_MINMAG:
 474        test_a_f64_z_ui64_x(slow_f64_to_ui64_r_minMag,
 475                            qemu_f64_to_ui64_r_minMag, exact);
 476        break;
 477    case F64_TO_I32_R_MINMAG:
 478        test_a_f64_z_i32_x(slow_f64_to_i32_r_minMag, qemu_f64_to_i32_r_minMag,
 479                           exact);
 480        break;
 481    case F64_TO_I64_R_MINMAG:
 482        test_a_f64_z_i64_x(slow_f64_to_i64_r_minMag, qemu_f64_to_i64_r_minMag,
 483                           exact);
 484        break;
 485    case F64_TO_F16:
 486        test_a_f64_z_f16(slow_f64_to_f16, qemu_f64_to_f16);
 487        break;
 488    case F64_TO_F32:
 489        test_a_f64_z_f32(slow_f64_to_f32, qemu_f64_to_f32);
 490        break;
 491    case F64_TO_EXTF80:
 492        test_a_f64_z_extF80(slow_f64_to_extF80M, qemu_f64_to_extF80M);
 493        break;
 494    case F64_TO_F128:
 495        test_a_f64_z_f128(slow_f64_to_f128M, qemu_f64_to_f128M);
 496        break;
 497    case F64_ROUNDTOINT:
 498        test_az_f64_rx(slow_f64_roundToInt, qemu_f64_roundToInt, rmode, exact);
 499        break;
 500    case F64_ADD:
 501        true_abz_f64 = slow_f64_add;
 502        subj_abz_f64 = qemu_f64_add;
 503        goto test_abz_f64;
 504    case F64_SUB:
 505        true_abz_f64 = slow_f64_sub;
 506        subj_abz_f64 = qemu_f64_sub;
 507        goto test_abz_f64;
 508    case F64_MUL:
 509        true_abz_f64 = slow_f64_mul;
 510        subj_abz_f64 = qemu_f64_mul;
 511        goto test_abz_f64;
 512    case F64_DIV:
 513        true_abz_f64 = slow_f64_div;
 514        subj_abz_f64 = qemu_f64_div;
 515        goto test_abz_f64;
 516    case F64_REM:
 517        true_abz_f64 = slow_f64_rem;
 518        subj_abz_f64 = qemu_f64_rem;
 519    test_abz_f64:
 520        test_abz_f64(true_abz_f64, subj_abz_f64);
 521        break;
 522    case F64_MULADD:
 523        test_abcz_f64(slow_f64_mulAdd, qemu_f64_mulAdd);
 524        break;
 525    case F64_SQRT:
 526        test_az_f64(slow_f64_sqrt, qemu_f64_sqrt);
 527        break;
 528    case F64_EQ:
 529        true_ab_f64_z_bool = slow_f64_eq;
 530        subj_ab_f64_z_bool = qemu_f64_eq;
 531        goto test_ab_f64_z_bool;
 532    case F64_LE:
 533        true_ab_f64_z_bool = slow_f64_le;
 534        subj_ab_f64_z_bool = qemu_f64_le;
 535        goto test_ab_f64_z_bool;
 536    case F64_LT:
 537        true_ab_f64_z_bool = slow_f64_lt;
 538        subj_ab_f64_z_bool = qemu_f64_lt;
 539        goto test_ab_f64_z_bool;
 540    case F64_EQ_SIGNALING:
 541        true_ab_f64_z_bool = slow_f64_eq_signaling;
 542        subj_ab_f64_z_bool = qemu_f64_eq_signaling;
 543        goto test_ab_f64_z_bool;
 544    case F64_LE_QUIET:
 545        true_ab_f64_z_bool = slow_f64_le_quiet;
 546        subj_ab_f64_z_bool = qemu_f64_le_quiet;
 547        goto test_ab_f64_z_bool;
 548    case F64_LT_QUIET:
 549        true_ab_f64_z_bool = slow_f64_lt_quiet;
 550        subj_ab_f64_z_bool = qemu_f64_lt_quiet;
 551    test_ab_f64_z_bool:
 552        test_ab_f64_z_bool(true_ab_f64_z_bool, subj_ab_f64_z_bool);
 553        break;
 554    case EXTF80_TO_UI32:
 555        not_implemented();
 556        break;
 557    case EXTF80_TO_UI64:
 558        not_implemented();
 559        break;
 560    case EXTF80_TO_I32:
 561        test_a_extF80_z_i32_rx(slow_extF80M_to_i32, qemu_extF80M_to_i32, rmode,
 562                               exact);
 563        break;
 564    case EXTF80_TO_I64:
 565        test_a_extF80_z_i64_rx(slow_extF80M_to_i64, qemu_extF80M_to_i64, rmode,
 566                               exact);
 567        break;
 568    case EXTF80_TO_UI32_R_MINMAG:
 569        not_implemented();
 570        break;
 571    case EXTF80_TO_UI64_R_MINMAG:
 572        not_implemented();
 573        break;
 574    case EXTF80_TO_I32_R_MINMAG:
 575        test_a_extF80_z_i32_x(slow_extF80M_to_i32_r_minMag,
 576                              qemu_extF80M_to_i32_r_minMag, exact);
 577        break;
 578    case EXTF80_TO_I64_R_MINMAG:
 579        test_a_extF80_z_i64_x(slow_extF80M_to_i64_r_minMag,
 580                              qemu_extF80M_to_i64_r_minMag, exact);
 581        break;
 582    case EXTF80_TO_F16:
 583        not_implemented();
 584        break;
 585    case EXTF80_TO_F32:
 586        test_a_extF80_z_f32(slow_extF80M_to_f32, qemu_extF80M_to_f32);
 587        break;
 588    case EXTF80_TO_F64:
 589        test_a_extF80_z_f64(slow_extF80M_to_f64, qemu_extF80M_to_f64);
 590        break;
 591    case EXTF80_TO_F128:
 592        test_a_extF80_z_f128(slow_extF80M_to_f128M, qemu_extF80M_to_f128M);
 593        break;
 594    case EXTF80_ROUNDTOINT:
 595        test_az_extF80_rx(slow_extF80M_roundToInt, qemu_extF80M_roundToInt,
 596                          rmode, exact);
 597        break;
 598    case EXTF80_ADD:
 599        true_abz_extF80M = slow_extF80M_add;
 600        subj_abz_extF80M = qemu_extF80M_add;
 601        goto test_abz_extF80;
 602    case EXTF80_SUB:
 603        true_abz_extF80M = slow_extF80M_sub;
 604        subj_abz_extF80M = qemu_extF80M_sub;
 605        goto test_abz_extF80;
 606    case EXTF80_MUL:
 607        true_abz_extF80M = slow_extF80M_mul;
 608        subj_abz_extF80M = qemu_extF80M_mul;
 609        goto test_abz_extF80;
 610    case EXTF80_DIV:
 611        true_abz_extF80M = slow_extF80M_div;
 612        subj_abz_extF80M = qemu_extF80M_div;
 613        goto test_abz_extF80;
 614    case EXTF80_REM:
 615        true_abz_extF80M = slow_extF80M_rem;
 616        subj_abz_extF80M = qemu_extF80M_rem;
 617    test_abz_extF80:
 618        test_abz_extF80(true_abz_extF80M, subj_abz_extF80M);
 619        break;
 620    case EXTF80_SQRT:
 621        test_az_extF80(slow_extF80M_sqrt, qemu_extF80M_sqrt);
 622        break;
 623    case EXTF80_EQ:
 624        true_ab_extF80M_z_bool = slow_extF80M_eq;
 625        subj_ab_extF80M_z_bool = qemu_extF80M_eq;
 626        goto test_ab_extF80_z_bool;
 627    case EXTF80_LE:
 628        true_ab_extF80M_z_bool = slow_extF80M_le;
 629        subj_ab_extF80M_z_bool = qemu_extF80M_le;
 630        goto test_ab_extF80_z_bool;
 631    case EXTF80_LT:
 632        true_ab_extF80M_z_bool = slow_extF80M_lt;
 633        subj_ab_extF80M_z_bool = qemu_extF80M_lt;
 634        goto test_ab_extF80_z_bool;
 635    case EXTF80_EQ_SIGNALING:
 636        true_ab_extF80M_z_bool = slow_extF80M_eq_signaling;
 637        subj_ab_extF80M_z_bool = qemu_extF80M_eq_signaling;
 638        goto test_ab_extF80_z_bool;
 639    case EXTF80_LE_QUIET:
 640        true_ab_extF80M_z_bool = slow_extF80M_le_quiet;
 641        subj_ab_extF80M_z_bool = qemu_extF80M_le_quiet;
 642        goto test_ab_extF80_z_bool;
 643    case EXTF80_LT_QUIET:
 644        true_ab_extF80M_z_bool = slow_extF80M_lt_quiet;
 645        subj_ab_extF80M_z_bool = qemu_extF80M_lt_quiet;
 646    test_ab_extF80_z_bool:
 647        test_ab_extF80_z_bool(true_ab_extF80M_z_bool, subj_ab_extF80M_z_bool);
 648        break;
 649    case F128_TO_UI32:
 650        test_a_f128_z_ui32_rx(slow_f128M_to_ui32, qemu_f128M_to_ui32, rmode,
 651                              exact);
 652        break;
 653    case F128_TO_UI64:
 654        test_a_f128_z_ui64_rx(slow_f128M_to_ui64, qemu_f128M_to_ui64, rmode,
 655                              exact);
 656        break;
 657    case F128_TO_I32:
 658        test_a_f128_z_i32_rx(slow_f128M_to_i32, qemu_f128M_to_i32, rmode,
 659                             exact);
 660        break;
 661    case F128_TO_I64:
 662        test_a_f128_z_i64_rx(slow_f128M_to_i64, qemu_f128M_to_i64, rmode,
 663                             exact);
 664        break;
 665    case F128_TO_UI32_R_MINMAG:
 666        test_a_f128_z_ui32_x(slow_f128M_to_ui32_r_minMag,
 667                             qemu_f128M_to_ui32_r_minMag, exact);
 668        break;
 669    case F128_TO_UI64_R_MINMAG:
 670        test_a_f128_z_ui64_x(slow_f128M_to_ui64_r_minMag,
 671                             qemu_f128M_to_ui64_r_minMag, exact);
 672        break;
 673    case F128_TO_I32_R_MINMAG:
 674        test_a_f128_z_i32_x(slow_f128M_to_i32_r_minMag,
 675                            qemu_f128M_to_i32_r_minMag, exact);
 676        break;
 677    case F128_TO_I64_R_MINMAG:
 678        test_a_f128_z_i64_x(slow_f128M_to_i64_r_minMag,
 679                            qemu_f128M_to_i64_r_minMag, exact);
 680        break;
 681    case F128_TO_F16:
 682        not_implemented();
 683        break;
 684    case F128_TO_F32:
 685        test_a_f128_z_f32(slow_f128M_to_f32, qemu_f128M_to_f32);
 686        break;
 687    case F128_TO_F64:
 688        test_a_f128_z_f64(slow_f128M_to_f64, qemu_f128M_to_f64);
 689        break;
 690    case F128_TO_EXTF80:
 691        test_a_f128_z_extF80(slow_f128M_to_extF80M, qemu_f128M_to_extF80M);
 692        break;
 693    case F128_ROUNDTOINT:
 694        test_az_f128_rx(slow_f128M_roundToInt, qemu_f128M_roundToInt, rmode,
 695                        exact);
 696        break;
 697    case F128_ADD:
 698        true_abz_f128M = slow_f128M_add;
 699        subj_abz_f128M = qemu_f128M_add;
 700        goto test_abz_f128;
 701    case F128_SUB:
 702        true_abz_f128M = slow_f128M_sub;
 703        subj_abz_f128M = qemu_f128M_sub;
 704        goto test_abz_f128;
 705    case F128_MUL:
 706        true_abz_f128M = slow_f128M_mul;
 707        subj_abz_f128M = qemu_f128M_mul;
 708        goto test_abz_f128;
 709    case F128_DIV:
 710        true_abz_f128M = slow_f128M_div;
 711        subj_abz_f128M = qemu_f128M_div;
 712        goto test_abz_f128;
 713    case F128_REM:
 714        true_abz_f128M = slow_f128M_rem;
 715        subj_abz_f128M = qemu_f128M_rem;
 716    test_abz_f128:
 717        test_abz_f128(true_abz_f128M, subj_abz_f128M);
 718        break;
 719    case F128_MULADD:
 720        not_implemented();
 721        break;
 722    case F128_SQRT:
 723        test_az_f128(slow_f128M_sqrt, qemu_f128M_sqrt);
 724        break;
 725    case F128_EQ:
 726        true_ab_f128M_z_bool = slow_f128M_eq;
 727        subj_ab_f128M_z_bool = qemu_f128M_eq;
 728        goto test_ab_f128_z_bool;
 729    case F128_LE:
 730        true_ab_f128M_z_bool = slow_f128M_le;
 731        subj_ab_f128M_z_bool = qemu_f128M_le;
 732        goto test_ab_f128_z_bool;
 733    case F128_LT:
 734        true_ab_f128M_z_bool = slow_f128M_lt;
 735        subj_ab_f128M_z_bool = qemu_f128M_lt;
 736        goto test_ab_f128_z_bool;
 737    case F128_EQ_SIGNALING:
 738        true_ab_f128M_z_bool = slow_f128M_eq_signaling;
 739        subj_ab_f128M_z_bool = qemu_f128M_eq_signaling;
 740        goto test_ab_f128_z_bool;
 741    case F128_LE_QUIET:
 742        true_ab_f128M_z_bool = slow_f128M_le_quiet;
 743        subj_ab_f128M_z_bool = qemu_f128M_le_quiet;
 744        goto test_ab_f128_z_bool;
 745    case F128_LT_QUIET:
 746        true_ab_f128M_z_bool = slow_f128M_lt_quiet;
 747        subj_ab_f128M_z_bool = qemu_f128M_lt_quiet;
 748    test_ab_f128_z_bool:
 749        test_ab_f128_z_bool(true_ab_f128M_z_bool, subj_ab_f128M_z_bool);
 750        break;
 751    }
 752    if ((verCases_errorStop && verCases_anyErrors)) {
 753        verCases_exitWithStatus();
 754    }
 755}
 756
 757static unsigned int test_name_to_op(const char *arg)
 758{
 759    unsigned int i;
 760
 761    /* counting begins at 1 */
 762    for (i = 1; i < NUM_FUNCTIONS; i++) {
 763        const char *name = functionInfos[i].namePtr;
 764
 765        if (name && !strcmp(name, arg)) {
 766            return i;
 767        }
 768    }
 769    return 0;
 770}
 771
 772static unsigned int round_name_to_mode(const char *name)
 773{
 774    int i;
 775
 776    /* counting begins at 1 */
 777    for (i = 1; i < NUM_ROUNDINGMODES; i++) {
 778        if (!strcmp(round_mode_names[i], name)) {
 779            return i;
 780        }
 781    }
 782    return 0;
 783}
 784
 785static int set_init_flags(const char *flags)
 786{
 787    const char *p;
 788
 789    for (p = flags; *p != '\0'; p++) {
 790        switch (*p) {
 791        case 'v':
 792            slow_init_flags |= softfloat_flag_invalid;
 793            qemu_init_flags |= float_flag_invalid;
 794            break;
 795        case 'i':
 796            slow_init_flags |= softfloat_flag_infinite;
 797            qemu_init_flags |= float_flag_divbyzero;
 798            break;
 799        case 'o':
 800            slow_init_flags |= softfloat_flag_overflow;
 801            qemu_init_flags |= float_flag_overflow;
 802            break;
 803        case 'u':
 804            slow_init_flags |= softfloat_flag_underflow;
 805            qemu_init_flags |= float_flag_underflow;
 806            break;
 807        case 'x':
 808            slow_init_flags |= softfloat_flag_inexact;
 809            qemu_init_flags |= float_flag_inexact;
 810            break;
 811        default:
 812            return 1;
 813        }
 814    }
 815    return 0;
 816}
 817
 818static uint_fast8_t slow_clear_flags(void)
 819{
 820    uint8_t prev = slowfloat_exceptionFlags;
 821
 822    slowfloat_exceptionFlags = slow_init_flags;
 823    return prev;
 824}
 825
 826static uint_fast8_t qemu_clear_flags(void)
 827{
 828    uint8_t prev = qemu_flags_to_sf(qsf.float_exception_flags);
 829
 830    qsf.float_exception_flags = qemu_init_flags;
 831    return prev;
 832}
 833
 834static void parse_args(int argc, char *argv[])
 835{
 836    unsigned int i;
 837    int c;
 838
 839    for (;;) {
 840        c = getopt(argc, argv, "he:f:l:r:s");
 841        if (c < 0) {
 842            break;
 843        }
 844        switch (c) {
 845        case 'h':
 846            usage_complete(argc, argv);
 847            exit(EXIT_SUCCESS);
 848        case 'e':
 849            if (qemu_strtoui(optarg, NULL, 0, &n_max_errors)) {
 850                fprintf(stderr, "fatal: invalid max error count\n");
 851                exit(EXIT_FAILURE);
 852            }
 853            break;
 854        case 'f':
 855            if (set_init_flags(optarg)) {
 856                fprintf(stderr, "fatal: flags must be a subset of 'vioux'\n");
 857                exit(EXIT_FAILURE);
 858            }
 859            break;
 860        case 'l':
 861            if (qemu_strtoi(optarg, NULL, 0, &test_level)) {
 862                fprintf(stderr, "fatal: invalid test level\n");
 863                exit(EXIT_FAILURE);
 864            }
 865            break;
 866        case 'r':
 867            if (!strcmp(optarg, "all")) {
 868                test_round_mode = 0;
 869            } else {
 870                test_round_mode = round_name_to_mode(optarg);
 871                if (test_round_mode == 0) {
 872                    fprintf(stderr, "fatal: invalid rounding mode\n");
 873                    exit(EXIT_FAILURE);
 874                }
 875            }
 876            break;
 877        case 's':
 878            verCases_errorStop = true;
 879            break;
 880        case '?':
 881            /* invalid option or missing argument; getopt prints error info */
 882            exit(EXIT_FAILURE);
 883        }
 884    }
 885
 886    /* set rounding modes */
 887    if (test_round_mode == 0) {
 888        /* test all rounding modes; note that counting begins at 1 */
 889        n_round_modes = NUM_ROUNDINGMODES - 1;
 890        round_modes = g_malloc_n(n_round_modes, sizeof(*round_modes));
 891        for (i = 0; i < n_round_modes; i++) {
 892            round_modes[i] = i + 1;
 893        }
 894    } else {
 895        n_round_modes = 1;
 896        round_modes = g_malloc(sizeof(*round_modes));
 897        round_modes[0] = test_round_mode;
 898    }
 899
 900    /* set test ops */
 901    if (optind == argc) {
 902        /* test all ops; note that counting begins at 1 */
 903        n_test_ops = NUM_FUNCTIONS - 1;
 904        test_ops = g_malloc_n(n_test_ops, sizeof(*test_ops));
 905        for (i = 0; i < n_test_ops; i++) {
 906            test_ops[i] = i + 1;
 907        }
 908    } else {
 909        n_test_ops = argc - optind;
 910        test_ops = g_malloc_n(n_test_ops, sizeof(*test_ops));
 911        for (i = 0; i < n_test_ops; i++) {
 912            const char *name = argv[i + optind];
 913            unsigned int op = test_name_to_op(name);
 914
 915            if (op == 0) {
 916                fprintf(stderr, "fatal: invalid op '%s'\n", name);
 917                exit(EXIT_FAILURE);
 918            }
 919            test_ops[i] = op;
 920        }
 921    }
 922}
 923
 924static void QEMU_NORETURN run_test(void)
 925{
 926    unsigned int i;
 927
 928    genCases_setLevel(test_level);
 929    verCases_maxErrorCount = n_max_errors;
 930
 931    testLoops_trueFlagsFunction = slow_clear_flags;
 932    testLoops_subjFlagsFunction = qemu_clear_flags;
 933
 934    for (i = 0; i < n_test_ops; i++) {
 935        unsigned int op = test_ops[i];
 936        int j;
 937
 938        if (functionInfos[op].namePtr == NULL) {
 939            continue;
 940        }
 941        verCases_functionNamePtr = functionInfos[op].namePtr;
 942
 943        for (j = 0; j < n_round_modes; j++) {
 944            int attrs = functionInfos[op].attribs;
 945            int round = round_modes[j];
 946            int rmode = roundingModes[round];
 947            int k;
 948
 949            verCases_roundingCode = 0;
 950            slowfloat_roundingMode = rmode;
 951            qsf.float_rounding_mode = sf_rounding_to_qemu(rmode);
 952
 953            if (attrs & (FUNC_ARG_ROUNDINGMODE | FUNC_EFF_ROUNDINGMODE)) {
 954                /* print rounding mode if the op is affected by it */
 955                verCases_roundingCode = round;
 956            } else if (j > 0) {
 957                /* if the op is not sensitive to rounding, move on */
 958                break;
 959            }
 960
 961            /* QEMU doesn't have !exact */
 962            verCases_exact = true;
 963            verCases_usesExact = !!(attrs & FUNC_ARG_EXACT);
 964
 965            for (k = 0; k < 3; k++) {
 966                int prec80 = 32;
 967                int l;
 968
 969                if (k == 1) {
 970                    prec80 = 64;
 971                } else if (k == 2) {
 972                    prec80 = 80;
 973                }
 974
 975                verCases_roundingPrecision = 0;
 976                slow_extF80_roundingPrecision = prec80;
 977                qsf.floatx80_rounding_precision = prec80;
 978
 979                if (attrs & FUNC_EFF_ROUNDINGPRECISION) {
 980                    verCases_roundingPrecision = prec80;
 981                } else if (k > 0) {
 982                    /* if the op is not sensitive to prec80, move on */
 983                    break;
 984                }
 985
 986                /* note: the count begins at 1 */
 987                for (l = 1; l < NUM_TININESSMODES; l++) {
 988                    int tmode = tininessModes[l];
 989
 990                    verCases_tininessCode = 0;
 991                    slowfloat_detectTininess = tmode;
 992                    qsf.float_detect_tininess = sf_tininess_to_qemu(tmode);
 993
 994                    if (attrs & FUNC_EFF_TININESSMODE ||
 995                        ((attrs & FUNC_EFF_TININESSMODE_REDUCEDPREC) &&
 996                         prec80 && prec80 < 80)) {
 997                        verCases_tininessCode = l;
 998                    } else if (l > 1) {
 999                        /* if the op is not sensitive to tininess, move on */
1000                        break;
1001                    }
1002
1003                    do_testfloat(op, rmode, true);
1004                }
1005            }
1006        }
1007    }
1008    verCases_exitWithStatus();
1009    /* old compilers might miss that we exited */
1010    g_assert_not_reached();
1011}
1012
1013int main(int argc, char *argv[])
1014{
1015    parse_args(argc, argv);
1016    fail_programName = argv[0];
1017    run_test(); /* does not return */
1018}
1019