compiler-rt/test/builtins/Unit/clzsi2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_clzsi2
   3 //===-- clzsi2_test.c - Test __clzsi2 -------------------------------------===//
   4 //
   5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   6 // See https://llvm.org/LICENSE.txt for license information.
   7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file tests __clzsi2 for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "int_lib.h"
  16 #include <stdio.h>
  17
  18 // Returns: the number of leading 0-bits
  19
  20 // Precondition: a != 0
  21
  22 COMPILER_RT_ABI si_int __clzsi2(si_int a);
  23
  24 int test__clzsi2(si_int a, si_int expected)
  25 {
  26     si_int x = __clzsi2(a);
  27     if (x != expected)
  28         printf("error in __clzsi2(0x%X) = %d, expected %d\n", a, x, expected);
  29     return x != expected;
  30 }
  31
  32 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
  33 char assumption_2[sizeof(si_int)*CHAR_BIT == 32] = {0};
  34
  35 int main()
  36 {
  37 //    if (test__clzsi2(0x00000000, 32))  // undefined
  38 //        return 1;
  39     if (test__clzsi2(0x00800000, 8))
  40         return 1;
  41     if (test__clzsi2(0x01000000, 7))
  42         return 1;
  43     if (test__clzsi2(0x02000000, 6))
  44         return 1;
  45     if (test__clzsi2(0x03000000, 6))
  46         return 1;
  47     if (test__clzsi2(0x04000000, 5))
  48         return 1;
  49     if (test__clzsi2(0x05000000, 5))
  50         return 1;
  51     if (test__clzsi2(0x06000000, 5))
  52         return 1;
  53     if (test__clzsi2(0x07000000, 5))
  54         return 1;
  55     if (test__clzsi2(0x08000000, 4))
  56         return 1;
  57     if (test__clzsi2(0x09000000, 4))
  58         return 1;
  59     if (test__clzsi2(0x0A000000, 4))
  60         return 1;
  61     if (test__clzsi2(0x0B000000, 4))
  62         return 1;
  63     if (test__clzsi2(0x0C000000, 4))
  64         return 1;
  65     if (test__clzsi2(0x0D000000, 4))
  66         return 1;
  67     if (test__clzsi2(0x0E000000, 4))
  68         return 1;
  69     if (test__clzsi2(0x0F000000, 4))
  70         return 1;
  71     if (test__clzsi2(0x10000000, 3))
  72         return 1;
  73     if (test__clzsi2(0x11000000, 3))
  74         return 1;
  75     if (test__clzsi2(0x12000000, 3))
  76         return 1;
  77     if (test__clzsi2(0x13000000, 3))
  78         return 1;
  79     if (test__clzsi2(0x14000000, 3))
  80         return 1;
  81     if (test__clzsi2(0x15000000, 3))
  82         return 1;
  83     if (test__clzsi2(0x16000000, 3))
  84         return 1;
  85     if (test__clzsi2(0x17000000, 3))
  86         return 1;
  87     if (test__clzsi2(0x18000000, 3))
  88         return 1;
  89     if (test__clzsi2(0x19000000, 3))
  90         return 1;
  91     if (test__clzsi2(0x1A000000, 3))
  92         return 1;
  93     if (test__clzsi2(0x1B000000, 3))
  94         return 1;
  95     if (test__clzsi2(0x1C000000, 3))
  96         return 1;
  97     if (test__clzsi2(0x1D000000, 3))
  98         return 1;
  99     if (test__clzsi2(0x1E000000, 3))
 100         return 1;
 101     if (test__clzsi2(0x1F000000, 3))
 102         return 1;
 103     if (test__clzsi2(0x20000000, 2))
 104         return 1;
 105     if (test__clzsi2(0x21000000, 2))
 106         return 1;
 107     if (test__clzsi2(0x22000000, 2))
 108         return 1;
 109     if (test__clzsi2(0x23000000, 2))
 110         return 1;
 111     if (test__clzsi2(0x24000000, 2))
 112         return 1;
 113     if (test__clzsi2(0x25000000, 2))
 114         return 1;
 115     if (test__clzsi2(0x26000000, 2))
 116         return 1;
 117     if (test__clzsi2(0x27000000, 2))
 118         return 1;
 119     if (test__clzsi2(0x28000000, 2))
 120         return 1;
 121     if (test__clzsi2(0x29000000, 2))
 122         return 1;
 123     if (test__clzsi2(0x2A000000, 2))
 124         return 1;
 125     if (test__clzsi2(0x2B000000, 2))
 126         return 1;
 127     if (test__clzsi2(0x2C000000, 2))
 128         return 1;
 129     if (test__clzsi2(0x2D000000, 2))
 130         return 1;
 131     if (test__clzsi2(0x2E000000, 2))
 132         return 1;
 133     if (test__clzsi2(0x2F000000, 2))
 134         return 1;
 135     if (test__clzsi2(0x30000000, 2))
 136         return 1;
 137     if (test__clzsi2(0x31000000, 2))
 138         return 1;
 139     if (test__clzsi2(0x32000000, 2))
 140         return 1;
 141     if (test__clzsi2(0x33000000, 2))
 142         return 1;
 143     if (test__clzsi2(0x34000000, 2))
 144         return 1;
 145     if (test__clzsi2(0x35000000, 2))
 146         return 1;
 147     if (test__clzsi2(0x36000000, 2))
 148         return 1;
 149     if (test__clzsi2(0x37000000, 2))
 150         return 1;
 151     if (test__clzsi2(0x38000000, 2))
 152         return 1;
 153     if (test__clzsi2(0x39000000, 2))
 154         return 1;
 155     if (test__clzsi2(0x3A000000, 2))
 156         return 1;
 157     if (test__clzsi2(0x3B000000, 2))
 158         return 1;
 159     if (test__clzsi2(0x3C000000, 2))
 160         return 1;
 161     if (test__clzsi2(0x3D000000, 2))
 162         return 1;
 163     if (test__clzsi2(0x3E000000, 2))
 164         return 1;
 165     if (test__clzsi2(0x3F000000, 2))
 166         return 1;
 167     if (test__clzsi2(0x40000000, 1))
 168         return 1;
 169     if (test__clzsi2(0x41000000, 1))
 170         return 1;
 171     if (test__clzsi2(0x42000000, 1))
 172         return 1;
 173     if (test__clzsi2(0x43000000, 1))
 174         return 1;
 175     if (test__clzsi2(0x44000000, 1))
 176         return 1;
 177     if (test__clzsi2(0x45000000, 1))
 178         return 1;
 179     if (test__clzsi2(0x46000000, 1))
 180         return 1;
 181     if (test__clzsi2(0x47000000, 1))
 182         return 1;
 183     if (test__clzsi2(0x48000000, 1))
 184         return 1;
 185     if (test__clzsi2(0x49000000, 1))
 186         return 1;
 187     if (test__clzsi2(0x4A000000, 1))
 188         return 1;
 189     if (test__clzsi2(0x4B000000, 1))
 190         return 1;
 191     if (test__clzsi2(0x4C000000, 1))
 192         return 1;
 193     if (test__clzsi2(0x4D000000, 1))
 194         return 1;
 195     if (test__clzsi2(0x4E000000, 1))
 196         return 1;
 197     if (test__clzsi2(0x4F000000, 1))
 198         return 1;
 199     if (test__clzsi2(0x50000000, 1))
 200         return 1;
 201     if (test__clzsi2(0x51000000, 1))
 202         return 1;
 203     if (test__clzsi2(0x52000000, 1))
 204         return 1;
 205     if (test__clzsi2(0x53000000, 1))
 206         return 1;
 207     if (test__clzsi2(0x54000000, 1))
 208         return 1;
 209     if (test__clzsi2(0x55000000, 1))
 210         return 1;
 211     if (test__clzsi2(0x56000000, 1))
 212         return 1;
 213     if (test__clzsi2(0x57000000, 1))
 214         return 1;
 215     if (test__clzsi2(0x58000000, 1))
 216         return 1;
 217     if (test__clzsi2(0x59000000, 1))
 218         return 1;
 219     if (test__clzsi2(0x5A000000, 1))
 220         return 1;
 221     if (test__clzsi2(0x5B000000, 1))
 222         return 1;
 223     if (test__clzsi2(0x5C000000, 1))
 224         return 1;
 225     if (test__clzsi2(0x5D000000, 1))
 226         return 1;
 227     if (test__clzsi2(0x5E000000, 1))
 228         return 1;
 229     if (test__clzsi2(0x5F000000, 1))
 230         return 1;
 231     if (test__clzsi2(0x60000000, 1))
 232         return 1;
 233     if (test__clzsi2(0x61000000, 1))
 234         return 1;
 235     if (test__clzsi2(0x62000000, 1))
 236         return 1;
 237     if (test__clzsi2(0x63000000, 1))
 238         return 1;
 239     if (test__clzsi2(0x64000000, 1))
 240         return 1;
 241     if (test__clzsi2(0x65000000, 1))
 242         return 1;
 243     if (test__clzsi2(0x66000000, 1))
 244         return 1;
 245     if (test__clzsi2(0x67000000, 1))
 246         return 1;
 247     if (test__clzsi2(0x68000000, 1))
 248         return 1;
 249     if (test__clzsi2(0x69000000, 1))
 250         return 1;
 251     if (test__clzsi2(0x6A000000, 1))
 252         return 1;
 253     if (test__clzsi2(0x6B000000, 1))
 254         return 1;
 255     if (test__clzsi2(0x6C000000, 1))
 256         return 1;
 257     if (test__clzsi2(0x6D000000, 1))
 258         return 1;
 259     if (test__clzsi2(0x6E000000, 1))
 260         return 1;
 261     if (test__clzsi2(0x6F000000, 1))
 262         return 1;
 263     if (test__clzsi2(0x70000000, 1))
 264         return 1;
 265     if (test__clzsi2(0x71000000, 1))
 266         return 1;
 267     if (test__clzsi2(0x72000000, 1))
 268         return 1;
 269     if (test__clzsi2(0x73000000, 1))
 270         return 1;
 271     if (test__clzsi2(0x74000000, 1))
 272         return 1;
 273     if (test__clzsi2(0x75000000, 1))
 274         return 1;
 275     if (test__clzsi2(0x76000000, 1))
 276         return 1;
 277     if (test__clzsi2(0x77000000, 1))
 278         return 1;
 279     if (test__clzsi2(0x78000000, 1))
 280         return 1;
 281     if (test__clzsi2(0x79000000, 1))
 282         return 1;
 283     if (test__clzsi2(0x7A000000, 1))
 284         return 1;
 285     if (test__clzsi2(0x7B000000, 1))
 286         return 1;
 287     if (test__clzsi2(0x7C000000, 1))
 288         return 1;
 289     if (test__clzsi2(0x7D000000, 1))
 290         return 1;
 291     if (test__clzsi2(0x7E000000, 1))
 292         return 1;
 293     if (test__clzsi2(0x7F000000, 1))
 294         return 1;
 295     if (test__clzsi2(0x80000000, 0))
 296         return 1;
 297     if (test__clzsi2(0x81000000, 0))
 298         return 1;
 299     if (test__clzsi2(0x82000000, 0))
 300         return 1;
 301     if (test__clzsi2(0x83000000, 0))
 302         return 1;
 303     if (test__clzsi2(0x84000000, 0))
 304         return 1;
 305     if (test__clzsi2(0x85000000, 0))
 306         return 1;
 307     if (test__clzsi2(0x86000000, 0))
 308         return 1;
 309     if (test__clzsi2(0x87000000, 0))
 310         return 1;
 311     if (test__clzsi2(0x88000000, 0))
 312         return 1;
 313     if (test__clzsi2(0x89000000, 0))
 314         return 1;
 315     if (test__clzsi2(0x8A000000, 0))
 316         return 1;
 317     if (test__clzsi2(0x8B000000, 0))
 318         return 1;
 319     if (test__clzsi2(0x8C000000, 0))
 320         return 1;
 321     if (test__clzsi2(0x8D000000, 0))
 322         return 1;
 323     if (test__clzsi2(0x8E000000, 0))
 324         return 1;
 325     if (test__clzsi2(0x8F000000, 0))
 326         return 1;
 327     if (test__clzsi2(0x90000000, 0))
 328         return 1;
 329     if (test__clzsi2(0x91000000, 0))
 330         return 1;
 331     if (test__clzsi2(0x92000000, 0))
 332         return 1;
 333     if (test__clzsi2(0x93000000, 0))
 334         return 1;
 335     if (test__clzsi2(0x94000000, 0))
 336         return 1;
 337     if (test__clzsi2(0x95000000, 0))
 338         return 1;
 339     if (test__clzsi2(0x96000000, 0))
 340         return 1;
 341     if (test__clzsi2(0x97000000, 0))
 342         return 1;
 343     if (test__clzsi2(0x98000000, 0))
 344         return 1;
 345     if (test__clzsi2(0x99000000, 0))
 346         return 1;
 347     if (test__clzsi2(0x9A000000, 0))
 348         return 1;
 349     if (test__clzsi2(0x9B000000, 0))
 350         return 1;
 351     if (test__clzsi2(0x9C000000, 0))
 352         return 1;
 353     if (test__clzsi2(0x9D000000, 0))
 354         return 1;
 355     if (test__clzsi2(0x9E000000, 0))
 356         return 1;
 357     if (test__clzsi2(0x9F000000, 0))
 358         return 1;
 359     if (test__clzsi2(0xA0000000, 0))
 360         return 1;
 361     if (test__clzsi2(0xA1000000, 0))
 362         return 1;
 363     if (test__clzsi2(0xA2000000, 0))
 364         return 1;
 365     if (test__clzsi2(0xA3000000, 0))
 366         return 1;
 367     if (test__clzsi2(0xA4000000, 0))
 368         return 1;
 369     if (test__clzsi2(0xA5000000, 0))
 370         return 1;
 371     if (test__clzsi2(0xA6000000, 0))
 372         return 1;
 373     if (test__clzsi2(0xA7000000, 0))
 374         return 1;
 375     if (test__clzsi2(0xA8000000, 0))
 376         return 1;
 377     if (test__clzsi2(0xA9000000, 0))
 378         return 1;
 379     if (test__clzsi2(0xAA000000, 0))
 380         return 1;
 381     if (test__clzsi2(0xAB000000, 0))
 382         return 1;
 383     if (test__clzsi2(0xAC000000, 0))
 384         return 1;
 385     if (test__clzsi2(0xAD000000, 0))
 386         return 1;
 387     if (test__clzsi2(0xAE000000, 0))
 388         return 1;
 389     if (test__clzsi2(0xAF000000, 0))
 390         return 1;
 391     if (test__clzsi2(0xB0000000, 0))
 392         return 1;
 393     if (test__clzsi2(0xB1000000, 0))
 394         return 1;
 395     if (test__clzsi2(0xB2000000, 0))
 396         return 1;
 397     if (test__clzsi2(0xB3000000, 0))
 398         return 1;
 399     if (test__clzsi2(0xB4000000, 0))
 400         return 1;
 401     if (test__clzsi2(0xB5000000, 0))
 402         return 1;
 403     if (test__clzsi2(0xB6000000, 0))
 404         return 1;
 405     if (test__clzsi2(0xB7000000, 0))
 406         return 1;
 407     if (test__clzsi2(0xB8000000, 0))
 408         return 1;
 409     if (test__clzsi2(0xB9000000, 0))
 410         return 1;
 411     if (test__clzsi2(0xBA000000, 0))
 412         return 1;
 413     if (test__clzsi2(0xBB000000, 0))
 414         return 1;
 415     if (test__clzsi2(0xBC000000, 0))
 416         return 1;
 417     if (test__clzsi2(0xBD000000, 0))
 418         return 1;
 419     if (test__clzsi2(0xBE000000, 0))
 420         return 1;
 421     if (test__clzsi2(0xBF000000, 0))
 422         return 1;
 423     if (test__clzsi2(0xC0000000, 0))
 424         return 1;
 425     if (test__clzsi2(0xC1000000, 0))
 426         return 1;
 427     if (test__clzsi2(0xC2000000, 0))
 428         return 1;
 429     if (test__clzsi2(0xC3000000, 0))
 430         return 1;
 431     if (test__clzsi2(0xC4000000, 0))
 432         return 1;
 433     if (test__clzsi2(0xC5000000, 0))
 434         return 1;
 435     if (test__clzsi2(0xC6000000, 0))
 436         return 1;
 437     if (test__clzsi2(0xC7000000, 0))
 438         return 1;
 439     if (test__clzsi2(0xC8000000, 0))
 440         return 1;
 441     if (test__clzsi2(0xC9000000, 0))
 442         return 1;
 443     if (test__clzsi2(0xCA000000, 0))
 444         return 1;
 445     if (test__clzsi2(0xCB000000, 0))
 446         return 1;
 447     if (test__clzsi2(0xCC000000, 0))
 448         return 1;
 449     if (test__clzsi2(0xCD000000, 0))
 450         return 1;
 451     if (test__clzsi2(0xCE000000, 0))
 452         return 1;
 453     if (test__clzsi2(0xCF000000, 0))
 454         return 1;
 455     if (test__clzsi2(0xD0000000, 0))
 456         return 1;
 457     if (test__clzsi2(0xD1000000, 0))
 458         return 1;
 459     if (test__clzsi2(0xD2000000, 0))
 460         return 1;
 461     if (test__clzsi2(0xD3000000, 0))
 462         return 1;
 463     if (test__clzsi2(0xD4000000, 0))
 464         return 1;
 465     if (test__clzsi2(0xD5000000, 0))
 466         return 1;
 467     if (test__clzsi2(0xD6000000, 0))
 468         return 1;
 469     if (test__clzsi2(0xD7000000, 0))
 470         return 1;
 471     if (test__clzsi2(0xD8000000, 0))
 472         return 1;
 473     if (test__clzsi2(0xD9000000, 0))
 474         return 1;
 475     if (test__clzsi2(0xDA000000, 0))
 476         return 1;
 477     if (test__clzsi2(0xDB000000, 0))
 478         return 1;
 479     if (test__clzsi2(0xDC000000, 0))
 480         return 1;
 481     if (test__clzsi2(0xDD000000, 0))
 482         return 1;
 483     if (test__clzsi2(0xDE000000, 0))
 484         return 1;
 485     if (test__clzsi2(0xDF000000, 0))
 486         return 1;
 487     if (test__clzsi2(0xE0000000, 0))
 488         return 1;
 489     if (test__clzsi2(0xE1000000, 0))
 490         return 1;
 491     if (test__clzsi2(0xE2000000, 0))
 492         return 1;
 493     if (test__clzsi2(0xE3000000, 0))
 494         return 1;
 495     if (test__clzsi2(0xE4000000, 0))
 496         return 1;
 497     if (test__clzsi2(0xE5000000, 0))
 498         return 1;
 499     if (test__clzsi2(0xE6000000, 0))
 500         return 1;
 501     if (test__clzsi2(0xE7000000, 0))
 502         return 1;
 503     if (test__clzsi2(0xE8000000, 0))
 504         return 1;
 505     if (test__clzsi2(0xE9000000, 0))
 506         return 1;
 507     if (test__clzsi2(0xEA000000, 0))
 508         return 1;
 509     if (test__clzsi2(0xEB000000, 0))
 510         return 1;
 511     if (test__clzsi2(0xEC000000, 0))
 512         return 1;
 513     if (test__clzsi2(0xED000000, 0))
 514         return 1;
 515     if (test__clzsi2(0xEE000000, 0))
 516         return 1;
 517     if (test__clzsi2(0xEF000000, 0))
 518         return 1;
 519     if (test__clzsi2(0xF0000000, 0))
 520         return 1;
 521     if (test__clzsi2(0xF1000000, 0))
 522         return 1;
 523     if (test__clzsi2(0xF2000000, 0))
 524         return 1;
 525     if (test__clzsi2(0xF3000000, 0))
 526         return 1;
 527     if (test__clzsi2(0xF4000000, 0))
 528         return 1;
 529     if (test__clzsi2(0xF5000000, 0))
 530         return 1;
 531     if (test__clzsi2(0xF6000000, 0))
 532         return 1;
 533     if (test__clzsi2(0xF7000000, 0))
 534         return 1;
 535     if (test__clzsi2(0xF8000000, 0))
 536         return 1;
 537     if (test__clzsi2(0xF9000000, 0))
 538         return 1;
 539     if (test__clzsi2(0xFA000000, 0))
 540         return 1;
 541     if (test__clzsi2(0xFB000000, 0))
 542         return 1;
 543     if (test__clzsi2(0xFC000000, 0))
 544         return 1;
 545     if (test__clzsi2(0xFD000000, 0))
 546         return 1;
 547     if (test__clzsi2(0xFE000000, 0))
 548         return 1;
 549     if (test__clzsi2(0xFF000000, 0))
 550         return 1;
 551
 552     if (test__clzsi2(0x00000001, 31))
 553         return 1;
 554     if (test__clzsi2(0x00000002, 30))
 555         return 1;
 556     if (test__clzsi2(0x00000004, 29))
 557         return 1;
 558     if (test__clzsi2(0x00000008, 28))
 559         return 1;
 560     if (test__clzsi2(0x00000010, 27))
 561         return 1;
 562     if (test__clzsi2(0x00000020, 26))
 563         return 1;
 564     if (test__clzsi2(0x00000040, 25))
 565         return 1;
 566     if (test__clzsi2(0x00000080, 24))
 567         return 1;
 568     if (test__clzsi2(0x00000100, 23))
 569         return 1;
 570     if (test__clzsi2(0x00000200, 22))
 571         return 1;
 572     if (test__clzsi2(0x00000400, 21))
 573         return 1;
 574     if (test__clzsi2(0x00000800, 20))
 575         return 1;
 576     if (test__clzsi2(0x00001000, 19))
 577         return 1;
 578     if (test__clzsi2(0x00002000, 18))
 579         return 1;
 580     if (test__clzsi2(0x00004000, 17))
 581         return 1;
 582     if (test__clzsi2(0x00008000, 16))
 583         return 1;
 584     if (test__clzsi2(0x00010000, 15))
 585         return 1;
 586     if (test__clzsi2(0x00020000, 14))
 587         return 1;
 588     if (test__clzsi2(0x00040000, 13))
 589         return 1;
 590     if (test__clzsi2(0x00080000, 12))
 591         return 1;
 592     if (test__clzsi2(0x00100000, 11))
 593         return 1;
 594     if (test__clzsi2(0x00200000, 10))
 595         return 1;
 596     if (test__clzsi2(0x00400000, 9))
 597         return 1;
 598
 599    return 0;
 600 }