tcctest.c

   1 /*
   2  * TCC auto test program
   3  */
   4 #include "config.h"
   5
   6 #if GCC_MAJOR >= 3
   7
   8 /* Unfortunately, gcc version < 3 does not handle that! */
   9 #define ALL_ISOC99
  10
  11 /* only gcc 3 handles _Bool correctly */
  12 #define BOOL_ISOC99
  13
  14 /* gcc 2.95.3 does not handle correctly CR in strings or after strays */
  15 #define CORRECT_CR_HANDLING
  16
  17 #endif
  18
  19 /* __VA_ARGS__ and __func__ support */
  20 #define C99_MACROS
  21
  22 /* test various include syntaxes */
  23
  24 #define TCCLIB_INC <tcclib.h>
  25 #define TCCLIB_INC1 <tcclib
  26 #define TCCLIB_INC2 h>
  27 #define TCCLIB_INC3 "tcclib"
  28
  29 #include TCCLIB_INC
  30
  31 #include TCCLIB_INC1.TCCLIB_INC2
  32
  33 #include TCCLIB_INC1.h>
  34
  35 /* gcc 3.2 does not accept that (bug ?) */
  36 //#include TCCLIB_INC3 ".h"
  37
  38 #include <tcclib.h>
  39
  40 #include "tcclib.h"
  41
  42 void string_test();
  43 void expr_test();
  44 void macro_test();
  45 void scope_test();
  46 void forward_test();
  47 void funcptr_test();
  48 void loop_test();
  49 void switch_test();
  50 void goto_test();
  51 void enum_test();
  52 void typedef_test();
  53 void struct_test();
  54 void array_test();
  55 void expr_ptr_test();
  56 void bool_test();
  57 void expr2_test();
  58 void constant_expr_test();
  59 void expr_cmp_test();
  60 void char_short_test();
  61 void init_test(void);
  62 void compound_literal_test(void);
  63 int kr_test();
  64 void struct_assign_test(void);
  65 void cast_test(void);
  66 void bitfield_test(void);
  67 void c99_bool_test(void);
  68 void float_test(void);
  69 void longlong_test(void);
  70 void stdarg_test(void);
  71 void whitespace_test(void);
  72 void relocation_test(void);
  73 void old_style_function(void);
  74 void sizeof_test(void);
  75 void typeof_test(void);
  76 void local_label_test(void);
  77 void statement_expr_test(void);
  78 void asm_test(void);
  79
  80 int fib(int n);
  81 void num(int n);
  82 void forward_ref(void);
  83 int isid(int c);
  84
  85 #define A 2
  86 #define N 1234 + A
  87 #define pf printf
  88 #define M1(a, b)  (a) + (b)
  89
  90 #define str\
  91 (s) # s
  92 #define glue(a, b) a ## b
  93 #define xglue(a, b) glue(a, b)
  94 #define HIGHLOW "hello"
  95 #define LOW LOW ", world"
  96
  97 #define min(a, b) ((a) < (b) ? (a) : (b))
  98
  99 #ifdef C99_MACROS
 100 #define dprintf(level,...) printf(__VA_ARGS__)
 101 #endif
 102
 103 /* gcc vararg macros */
 104 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 105
 106 #define MACRO_NOARGS()
 107
 108 #define AAA 3
 109 #undef AAA
 110 #define AAA 4
 111
 112 #if 1
 113 #define B3 1
 114 #elif 1
 115 #define B3 2
 116 #elif 0
 117 #define B3 3
 118 #else
 119 #define B3 4
 120 #endif
 121
 122 #define __INT64_C(c)    c ## LL
 123 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 124
 125 void macro_test(void)
 126 {
 127     printf("macro:\n");\f\v
 128     pf("N=%d\n", N);
 129     printf("aaa=%d\n", AAA);
 130
 131     printf("min=%d\n", min(1, min(2, -1)));
 132
 133     printf("s1=%s\n", glue(HIGH, LOW));
 134     printf("s2=%s\n", xglue(HIGH, LOW));
 135     printf("s3=%s\n", str("c"));
 136     printf("s4=%s\n", str(a1));
 137     printf("B3=%d\n", B3);
 138
 139 #ifdef A
 140     printf("A defined\n");
 141 #endif
 142 #ifdef B
 143     printf("B defined\n");
 144 #endif
 145 #ifdef A
 146     printf("A defined\n");
 147 #else
 148     printf("A not defined\n");
 149 #endif
 150 #ifdef B
 151     printf("B defined\n");
 152 #else
 153     printf("B not defined\n");
 154 #endif
 155
 156 #ifdef A
 157     printf("A defined\n");
 158 #ifdef B
 159     printf("B1 defined\n");
 160 #else
 161     printf("B1 not defined\n");
 162 #endif
 163 #else
 164     printf("A not defined\n");
 165 #ifdef B
 166     printf("B2 defined\n");
 167 #else
 168     printf("B2 not defined\n");
 169 #endif
 170 #endif
 171
 172 #if 1+1
 173     printf("test true1\n");
 174 #endif
 175 #if 0
 176     printf("test true2\n");
 177 #endif
 178 #if 1-1
 179     printf("test true3\n");
 180 #endif
 181 #if defined(A)
 182     printf("test trueA\n");
 183 #endif
 184 #if defined(B)
 185     printf("test trueB\n");
 186 #endif
 187
 188 #if 0
 189     printf("test 0\n");
 190 #elif 0
 191     printf("test 1\n");
 192 #elif 2
 193     printf("test 2\n");
 194 #else
 195     printf("test 3\n");
 196 #endif
 197
 198     MACRO_NOARGS();
 199
 200 #ifdef __LINE__
 201     printf("__LINE__ defined\n");
 202 #endif
 203
 204     printf("__LINE__=%d __FILE__=%s\n",
 205            __LINE__, __FILE__);
 206 #line 200
 207     printf("__LINE__=%d __FILE__=%s\n",
 208            __LINE__, __FILE__);
 209 #line 203 "test"
 210     printf("__LINE__=%d __FILE__=%s\n",
 211            __LINE__, __FILE__);
 212 #line 206 "tcctest.c"
 213
 214     /* not strictly preprocessor, but we test it there */
 215 #ifdef C99_MACROS
 216     printf("__func__ = %s\n", __func__);
 217     dprintf(1, "vaarg=%d\n", 1);
 218 #endif
 219     dprintf1(1, "vaarg1\n");
 220     dprintf1(1, "vaarg1=%d\n", 2);
 221     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 222
 223     /* gcc extension */
 224     printf("func='%s'\n", __FUNCTION__);
 225
 226     /* complicated macros in glibc */
 227     printf("INT64_MIN=%Ld\n", INT64_MIN);
 228     {
 229         int a;
 230         a = 1;
 231         glue(a+, +);
 232         printf("a=%d\n", a);
 233         glue(a <, <= 2);
 234         printf("a=%d\n", a);
 235     }
 236
 237     /* macro function with argument outside the macro string */
 238 #define MF_s MF_hello
 239 #define MF_hello(msg) printf("%s\n",msg)
 240
 241 #define MF_t printf("tralala\n"); MF_hello
 242
 243     MF_s("hi");
 244     MF_t("hi");
 245
 246     /* comment with stray handling *\
 247 /
 248        /* this is a valid *\/ comment */
 249        /* this is a valid comment *\*/
 250     //  this is a valid\
 251 comment
 252 }
 253
 254 int op(a,b)
 255 {
 256     return a / b;
 257 }
 258
 259 int ret(a)
 260 {
 261     if (a == 2)
 262         return 1;
 263     if (a == 3)
 264         return 2;
 265     return 0;
 266 }
 267
 268 void ps(char *s)
 269 {
 270     int c;
 271     while (1) {
 272         c = *s;
 273         if (c == 0)
 274             break;
 275         printf("%c", c);
 276         s++;
 277     }
 278 }
 279
 280 const char foo1_string[] = "\
 281 bar\n\
 282 test\14\
 283 1";
 284
 285 void string_test()
 286 {
 287     int b;
 288     printf("string:\n");
 289     printf("\141\1423\143\n");/* dezdez test */
 290     printf("\x41\x42\x43\x3a\n");
 291     printf("c=%c\n", 'r');
 292     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 293     printf("foo1_string='%s'\n", foo1_string);
 294 #if 0
 295     printf("wstring=%S\n", L"abc");
 296     printf("wstring=%S\n", L"abc" L"def" "ghi");
 297     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 298     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 299 #endif
 300     ps("test\n");
 301     b = 32;
 302     while ((b = b + 1) < 96) {
 303         printf("%c", b);
 304     }
 305     printf("\n");
 306     printf("fib=%d\n", fib(33));
 307     b = 262144;
 308     while (b != 0x80000000) {
 309         num(b);
 310         b = b * 2;
 311     }
 312 }
 313
 314 void loop_test()
 315 {
 316     int i;
 317     i = 0;
 318     while (i < 10)
 319         printf("%d", i++);
 320     printf("\n");
 321     for(i = 0; i < 10;i++)
 322         printf("%d", i);
 323     printf("\n");
 324     i = 0;
 325     do {
 326         printf("%d", i++);
 327     } while (i < 10);
 328     printf("\n");
 329
 330     /* break/continue tests */
 331     i = 0;
 332     while (1) {
 333         if (i == 6)
 334             break;
 335         i++;
 336         if (i == 3)
 337             continue;
 338         printf("%d", i);
 339     }
 340     printf("\n");
 341
 342     /* break/continue tests */
 343     i = 0;
 344     do {
 345         if (i == 6)
 346             break;
 347         i++;
 348         if (i == 3)
 349             continue;
 350         printf("%d", i);
 351     } while(1);
 352     printf("\n");
 353
 354     for(i = 0;i < 10;i++) {
 355         if (i == 3)
 356             continue;
 357         printf("%d", i);
 358     }
 359     printf("\n");
 360 }
 361
 362
 363 void goto_test()
 364 {
 365     int i;
 366     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 367
 368     printf("goto:\n");
 369     i = 0;
 370  s_loop:
 371     if (i >= 10)
 372         goto s_end;
 373     printf("%d", i);
 374     i++;
 375     goto s_loop;
 376  s_end:
 377     printf("\n");
 378
 379     /* we also test computed gotos (GCC extension) */
 380     for(i=0;i<3;i++) {
 381         goto *label_table[i];
 382     label1:
 383         printf("label1\n");
 384         goto next;
 385     label2:
 386         printf("label2\n");
 387         goto next;
 388     label3:
 389         printf("label3\n");
 390     next: ;
 391     }
 392 }
 393
 394 enum {
 395     E0,
 396     E1 = 2,
 397     E2 = 4,
 398     E3,
 399     E4,
 400 };
 401
 402 enum test {
 403     E5 = 1000,
 404 };
 405
 406 void enum_test()
 407 {
 408     enum test b1;
 409     printf("enum:\n%d %d %d %d %d %d\n",
 410            E0, E1, E2, E3, E4, E5);
 411     b1 = 1;
 412     printf("b1=%d\n", b1);
 413 }
 414
 415 typedef int *my_ptr;
 416
 417 void typedef_test()
 418 {
 419     my_ptr a;
 420     int b;
 421     a = &b;
 422     *a = 1234;
 423     printf("typedef:\n");
 424     printf("a=%d\n", *a);
 425 }
 426
 427 void forward_test()
 428 {
 429     printf("forward:\n");
 430     forward_ref();
 431     forward_ref();
 432 }
 433
 434
 435 void forward_ref(void)
 436 {
 437     printf("forward ok\n");
 438 }
 439
 440 typedef struct struct1 {
 441     int f1;
 442     int f2, f3;
 443     union union1 {
 444         int v1;
 445         int v2;
 446     } u;
 447     char str[3];
 448 } struct1;
 449
 450 struct struct2 {
 451     int a;
 452     char b;
 453 };
 454
 455 union union2 {
 456     int w1;
 457     int w2;
 458 };
 459
 460 struct struct1 st1, st2;
 461
 462 int main(int argc, char **argv)
 463 {
 464     string_test();
 465     expr_test();
 466     macro_test();
 467     scope_test();
 468     forward_test();
 469     funcptr_test();
 470     loop_test();
 471     switch_test();
 472     goto_test();
 473     enum_test();
 474     typedef_test();
 475     struct_test();
 476     array_test();
 477     expr_ptr_test();
 478     bool_test();
 479     expr2_test();
 480     constant_expr_test();
 481     expr_cmp_test();
 482     char_short_test();
 483     init_test();
 484     compound_literal_test();
 485     kr_test();
 486     struct_assign_test();
 487     cast_test();
 488     bitfield_test();
 489     c99_bool_test();
 490     float_test();
 491     longlong_test();
 492     stdarg_test();
 493     whitespace_test();
 494     relocation_test();
 495     old_style_function();
 496     sizeof_test();
 497     typeof_test();
 498     statement_expr_test();
 499     local_label_test();
 500     asm_test();
 501     return 0;
 502 }
 503
 504 int tab[3];
 505 int tab2[3][2];
 506
 507 int g;
 508
 509 void f1(g)
 510 {
 511     printf("g1=%d\n", g);
 512 }
 513
 514 void scope_test()
 515 {
 516     printf("scope:\n");
 517     g = 2;
 518     f1(1);
 519     printf("g2=%d\n", g);
 520     {
 521         int g;
 522         g = 3;
 523         printf("g3=%d\n", g);
 524         {
 525             int g;
 526             g = 4;
 527             printf("g4=%d\n", g);
 528         }
 529     }
 530     printf("g5=%d\n", g);
 531 }
 532
 533 void array_test(int a[4])
 534 {
 535     int i, j;
 536
 537     printf("array:\n");
 538     printf("sizeof(a) = %d\n", sizeof(a));
 539     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 540 #ifdef C99_MACROS
 541     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 542 #endif
 543     printf("sizeof tab %d\n", sizeof(tab));
 544     printf("sizeof tab2 %d\n", sizeof tab2);
 545     tab[0] = 1;
 546     tab[1] = 2;
 547     tab[2] = 3;
 548     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 549     for(i=0;i<3;i++)
 550         for(j=0;j<2;j++)
 551             tab2[i][j] = 10 * i + j;
 552     for(i=0;i<3*2;i++) {
 553         printf(" %3d", ((int *)tab2)[i]);
 554     }
 555     printf("\n");
 556 }
 557
 558 void expr_test()
 559 {
 560     int a, b;
 561     a = 0;
 562     printf("%d\n", a += 1);
 563     printf("%d\n", a -= 2);
 564     printf("%d\n", a *= 31232132);
 565     printf("%d\n", a /= 4);
 566     printf("%d\n", a %= 20);
 567     printf("%d\n", a &= 6);
 568     printf("%d\n", a ^= 7);
 569     printf("%d\n", a |= 8);
 570     printf("%d\n", a >>= 3);
 571     printf("%d\n", a <<= 4);
 572
 573     a = 22321;
 574     b = -22321;
 575     printf("%d\n", a + 1);
 576     printf("%d\n", a - 2);
 577     printf("%d\n", a * 312);
 578     printf("%d\n", a / 4);
 579     printf("%d\n", b / 4);
 580     printf("%d\n", (unsigned)b / 4);
 581     printf("%d\n", a % 20);
 582     printf("%d\n", b % 20);
 583     printf("%d\n", (unsigned)b % 20);
 584     printf("%d\n", a & 6);
 585     printf("%d\n", a ^ 7);
 586     printf("%d\n", a | 8);
 587     printf("%d\n", a >> 3);
 588     printf("%d\n", b >> 3);
 589     printf("%d\n", (unsigned)b >> 3);
 590     printf("%d\n", a << 4);
 591     printf("%d\n", ~a);
 592     printf("%d\n", -a);
 593     printf("%d\n", +a);
 594
 595     printf("%d\n", 12 + 1);
 596     printf("%d\n", 12 - 2);
 597     printf("%d\n", 12 * 312);
 598     printf("%d\n", 12 / 4);
 599     printf("%d\n", 12 % 20);
 600     printf("%d\n", 12 & 6);
 601     printf("%d\n", 12 ^ 7);
 602     printf("%d\n", 12 | 8);
 603     printf("%d\n", 12 >> 2);
 604     printf("%d\n", 12 << 4);
 605     printf("%d\n", ~12);
 606     printf("%d\n", -12);
 607     printf("%d\n", +12);
 608     printf("%d %d %d %d\n",
 609            isid('a'),
 610            isid('g'),
 611            isid('T'),
 612            isid('('));
 613 }
 614
 615 int isid(int c)
 616 {
 617     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 618 }
 619
 620 /**********************/
 621
 622 int vstack[10], *vstack_ptr;
 623
 624 void vpush(int vt, int vc)
 625 {
 626     *vstack_ptr++ = vt;
 627     *vstack_ptr++ = vc;
 628 }
 629
 630 void vpop(int *ft, int *fc)
 631 {
 632     *fc = *--vstack_ptr;
 633     *ft = *--vstack_ptr;
 634 }
 635
 636 void expr2_test()
 637 {
 638     int a, b;
 639
 640     printf("expr2:\n");
 641     vstack_ptr = vstack;
 642     vpush(1432432, 2);
 643     vstack_ptr[-2] &= ~0xffffff80;
 644     vpop(&a, &b);
 645     printf("res= %d %d\n", a, b);
 646 }
 647
 648 void constant_expr_test()
 649 {
 650     int a;
 651     printf("constant_expr:\n");
 652     a = 3;
 653     printf("%d\n", a * 16);
 654     printf("%d\n", a * 1);
 655     printf("%d\n", a + 0);
 656 }
 657
 658 int tab4[10];
 659
 660 void expr_ptr_test()
 661 {
 662     int *p, *q;
 663
 664     printf("expr_ptr:\n");
 665     p = tab4;
 666     q = tab4 + 10;
 667     printf("diff=%d\n", q - p);
 668     p++;
 669     printf("inc=%d\n", p - tab4);
 670     p--;
 671     printf("dec=%d\n", p - tab4);
 672     ++p;
 673     printf("inc=%d\n", p - tab4);
 674     --p;
 675     printf("dec=%d\n", p - tab4);
 676     printf("add=%d\n", p + 3 - tab4);
 677     printf("add=%d\n", 3 + p - tab4);
 678 }
 679
 680 void expr_cmp_test()
 681 {
 682     int a, b;
 683     printf("constant_expr:\n");
 684     a = -1;
 685     b = 1;
 686     printf("%d\n", a == a);
 687     printf("%d\n", a != a);
 688
 689     printf("%d\n", a < b);
 690     printf("%d\n", a <= b);
 691     printf("%d\n", a <= a);
 692     printf("%d\n", b >= a);
 693     printf("%d\n", a >= a);
 694     printf("%d\n", b > a);
 695
 696     printf("%d\n", (unsigned)a < b);
 697     printf("%d\n", (unsigned)a <= b);
 698     printf("%d\n", (unsigned)a <= a);
 699     printf("%d\n", (unsigned)b >= a);
 700     printf("%d\n", (unsigned)a >= a);
 701     printf("%d\n", (unsigned)b > a);
 702 }
 703
 704 struct empty {
 705 };
 706
 707 struct aligntest1 {
 708     char a[10];
 709 };
 710
 711 struct aligntest2 {
 712     int a;
 713     char b[10];
 714 };
 715
 716 struct aligntest3 {
 717     double a, b;
 718 };
 719
 720 struct aligntest4 {
 721     double a[0];
 722 };
 723
 724 void struct_test()
 725 {
 726     struct1 *s;
 727     union union2 u;
 728
 729     printf("struct:\n");
 730     printf("sizes: %d %d %d %d\n",
 731            sizeof(struct struct1),
 732            sizeof(struct struct2),
 733            sizeof(union union1),
 734            sizeof(union union2));
 735     st1.f1 = 1;
 736     st1.f2 = 2;
 737     st1.f3 = 3;
 738     printf("st1: %d %d %d\n",
 739            st1.f1, st1.f2, st1.f3);
 740     st1.u.v1 = 1;
 741     st1.u.v2 = 2;
 742     printf("union1: %d\n", st1.u.v1);
 743     u.w1 = 1;
 744     u.w2 = 2;
 745     printf("union2: %d\n", u.w1);
 746     s = &st2;
 747     s->f1 = 3;
 748     s->f2 = 2;
 749     s->f3 = 1;
 750     printf("st2: %d %d %d\n",
 751            s->f1, s->f2, s->f3);
 752     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 753
 754     /* align / size tests */
 755     printf("aligntest1 sizeof=%d alignof=%d\n",
 756            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 757     printf("aligntest2 sizeof=%d alignof=%d\n",
 758            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 759     printf("aligntest3 sizeof=%d alignof=%d\n",
 760            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 761     printf("aligntest4 sizeof=%d alignof=%d\n",
 762            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 763
 764     /* empty structures (GCC extension) */
 765     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 766     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 767 }
 768
 769 /* XXX: depend on endianness */
 770 void char_short_test()
 771 {
 772     int var1, var2;
 773
 774     printf("char_short:\n");
 775
 776     var1 = 0x01020304;
 777     var2 = 0xfffefdfc;
 778     printf("s8=%d %d\n",
 779            *(char *)&var1, *(char *)&var2);
 780     printf("u8=%d %d\n",
 781            *(unsigned char *)&var1, *(unsigned char *)&var2);
 782     printf("s16=%d %d\n",
 783            *(short *)&var1, *(short *)&var2);
 784     printf("u16=%d %d\n",
 785            *(unsigned short *)&var1, *(unsigned short *)&var2);
 786     printf("s32=%d %d\n",
 787            *(int *)&var1, *(int *)&var2);
 788     printf("u32=%d %d\n",
 789            *(unsigned int *)&var1, *(unsigned int *)&var2);
 790     *(char *)&var1 = 0x08;
 791     printf("var1=%x\n", var1);
 792     *(short *)&var1 = 0x0809;
 793     printf("var1=%x\n", var1);
 794     *(int *)&var1 = 0x08090a0b;
 795     printf("var1=%x\n", var1);
 796 }
 797
 798 /******************/
 799
 800 typedef struct Sym {
 801     int v;
 802     int t;
 803     int c;
 804     struct Sym *next;
 805     struct Sym *prev;
 806 } Sym;
 807
 808 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 809 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 810
 811 static int toupper1(int a)
 812 {
 813     return TOUPPER(a);
 814 }
 815
 816 void bool_test()
 817 {
 818     int *s, a, b, t, f, i;
 819
 820     a = 0;
 821     s = (void*)0;
 822     printf("!s=%d\n", !s);
 823
 824     if (!s || !s[0])
 825         a = 1;
 826     printf("a=%d\n", a);
 827
 828     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 829     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 830     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 831 #if 1 && 1
 832     printf("a1\n");
 833 #endif
 834 #if 1 || 0
 835     printf("a2\n");
 836 #endif
 837 #if 1 ? 0 : 1
 838     printf("a3\n");
 839 #endif
 840 #if 0 ? 0 : 1
 841     printf("a4\n");
 842 #endif
 843
 844     a = 4;
 845     printf("b=%d\n", a + (0 ? 1 : a / 2));
 846
 847     /* test register spilling */
 848     a = 10;
 849     b = 10;
 850     a = (a + b) * ((a < b) ?
 851                    ((b - a) * (a - b)): a + b);
 852     printf("a=%d\n", a);
 853
 854     /* test complex || or && expressions */
 855     t = 1;
 856     f = 0;
 857     a = 32;
 858     printf("exp=%d\n", f == (32 <= a && a <= 3));
 859     printf("r=%d\n", (t || f) + (t && f));
 860
 861     /* test ? : cast */
 862     {
 863         int aspect_on;
 864         int aspect_native = 65536;
 865         double bfu_aspect = 1.0;
 866         int aspect;
 867         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
 868             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
 869             printf("aspect=%d\n", aspect);
 870         }
 871     }
 872
 873     /* test ? : GCC extension */
 874     {
 875         static int v1 = 34 ? : -1; /* constant case */
 876         static int v2 = 0 ? : -1; /* constant case */
 877         int a = 30;
 878
 879         printf("%d %d\n", v1, v2);
 880         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
 881     }
 882
 883     /* again complex expression */
 884     for(i=0;i<256;i++) {
 885         if (toupper1 (i) != TOUPPER (i))
 886             printf("error %d\n", i);
 887     }
 888 }
 889
 890 /* GCC accepts that */
 891 static int tab_reinit[];
 892 static int tab_reinit[10];
 893
 894 //int cinit1; /* a global variable can be defined several times without error ! */
 895 int cinit1;
 896 int cinit1;
 897 int cinit1 = 0;
 898 int *cinit2 = (int []){3, 2, 1};
 899
 900 void compound_literal_test(void)
 901 {
 902     int *p, i;
 903     char *q, *q3;
 904
 905     printf("compound_test:\n");
 906
 907     p = (int []){1, 2, 3};
 908     for(i=0;i<3;i++)
 909         printf(" %d", p[i]);
 910     printf("\n");
 911
 912     for(i=0;i<3;i++)
 913         printf("%d", cinit2[i]);
 914     printf("\n");
 915
 916     q = "tralala1";
 917     printf("q1=%s\n", q);
 918
 919     q = (char *){ "tralala2" };
 920     printf("q2=%s\n", q);
 921
 922     q3 = (char *){ q };
 923     printf("q3=%s\n", q3);
 924
 925     q = (char []){ "tralala3" };
 926     printf("q4=%s\n", q);
 927
 928 #ifdef ALL_ISOC99
 929     p = (int []){1, 2, cinit1 + 3};
 930     for(i=0;i<3;i++)
 931         printf(" %d", p[i]);
 932     printf("\n");
 933
 934     for(i=0;i<3;i++) {
 935         p = (int []){1, 2, 4 + i};
 936         printf("%d %d %d\n",
 937                p[0],
 938                p[1],
 939                p[2]);
 940     }
 941 #endif
 942 }
 943
 944 /* K & R protos */
 945
 946 kr_func1(a, b)
 947 {
 948     return a + b;
 949 }
 950
 951 int kr_func2(a, b)
 952 {
 953     return a + b;
 954 }
 955
 956 kr_test()
 957 {
 958     printf("kr_test:\n");
 959     printf("func1=%d\n", kr_func1(3, 4));
 960     printf("func2=%d\n", kr_func2(3, 4));
 961     return 0;
 962 }
 963
 964 void num(int n)
 965 {
 966     char *tab, *p;
 967     tab = (char*)malloc(20);
 968     p = tab;
 969     while (1) {
 970         *p = 48 + (n % 10);
 971         p++;
 972         n = n / 10;
 973         if (n == 0)
 974             break;
 975     }
 976     while (p != tab) {
 977         p--;
 978         printf("%c", *p);
 979     }
 980     printf("\n");
 981 }
 982
 983 /* structure assignment tests */
 984 struct structa1 {
 985     int f1;
 986     char f2;
 987 };
 988
 989 struct structa1 ssta1;
 990
 991 void struct_assign_test1(struct structa1 s1, int t)
 992 {
 993     printf("%d %d %d\n", s1.f1, s1.f2, t);
 994 }
 995
 996 struct structa1 struct_assign_test2(struct structa1 s1, int t)
 997 {
 998     s1.f1 += t;
 999     s1.f2 -= t;
1000     return s1;
1001 }
1002
1003 void struct_assign_test(void)
1004 {
1005     struct structa1 lsta1, lsta2;
1006
1007 #if 0
1008     printf("struct_assign_test:\n");
1009
1010     lsta1.f1 = 1;
1011     lsta1.f2 = 2;
1012     printf("%d %d\n", lsta1.f1, lsta1.f2);
1013     lsta2 = lsta1;
1014     printf("%d %d\n", lsta2.f1, lsta2.f2);
1015 #else
1016     lsta2.f1 = 1;
1017     lsta2.f2 = 2;
1018 #endif
1019     struct_assign_test1(lsta2, 3);
1020
1021     printf("before call: %d %d\n", lsta2.f1, lsta2.f2);
1022     lsta2 = struct_assign_test2(lsta2, 4);
1023     printf("after call: %d %d\n", lsta2.f1, lsta2.f2);
1024 }
1025
1026 /* casts to short/char */
1027
1028 void cast1(char a, short b, unsigned char c, unsigned short d)
1029 {
1030     printf("%d %d %d %d\n", a, b, c, d);
1031 }
1032
1033 char bcast;
1034 short scast;
1035
1036 void cast_test()
1037 {
1038     int a;
1039     char c;
1040     char tab[10];
1041
1042     printf("cast_test:\n");
1043     a = 0xfffff;
1044     cast1(a, a, a, a);
1045     a = 0xffffe;
1046     printf("%d %d %d %d\n",
1047            (char)(a + 1),
1048            (short)(a + 1),
1049            (unsigned char)(a + 1),
1050            (unsigned short)(a + 1));
1051     printf("%d %d %d %d\n",
1052            (char)0xfffff,
1053            (short)0xfffff,
1054            (unsigned char)0xfffff,
1055            (unsigned short)0xfffff);
1056
1057     a = (bcast = 128) + 1;
1058     printf("%d\n", a);
1059     a = (scast = 65536) + 1;
1060     printf("%d\n", a);
1061
1062     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1063
1064     /* test implicit int casting for array accesses */
1065     c = 0;
1066     tab[1] = 2;
1067     tab[c] = 1;
1068     printf("%d %d\n", tab[0], tab[1]);
1069
1070     /* test implicit casting on some operators */
1071     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1072     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1073     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1074 }
1075
1076 /* initializers tests */
1077 struct structinit1 {
1078     int f1;
1079     char f2;
1080     short f3;
1081     int farray[3];
1082 };
1083
1084 int sinit1 = 2;
1085 int sinit2 = { 3 };
1086 int sinit3[3] = { 1, 2, {{3}}, };
1087 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1088 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1089 int sinit6[] = { 1, 2, 3 };
1090 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1091 char sinit8[] = "hello" "trala";
1092
1093 struct structinit1 sinit9 = { 1, 2, 3 };
1094 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1095 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1096 #ifdef ALL_ISOC99
1097                                .farray[0] = 10,
1098                                .farray[1] = 11,
1099                                .farray[2] = 12,
1100 #endif
1101 };
1102
1103 char *sinit12 = "hello world";
1104 char *sinit13[] = {
1105     "test1",
1106     "test2",
1107     "test3",
1108 };
1109 char sinit14[10] = { "abc" };
1110 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1111
1112 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1113
1114 struct bar {
1115         char *s;
1116         int len;
1117 } sinit17[] = {
1118         "a1", 4,
1119         "a2", 1
1120 };
1121
1122 int sinit18[10] = {
1123     [2 ... 5] = 20,
1124     2,
1125     [8] = 10,
1126 };
1127
1128 void init_test(void)
1129 {
1130     int linit1 = 2;
1131     int linit2 = { 3 };
1132     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1133     int linit6[] = { 1, 2, 3 };
1134     int i, j;
1135     char linit8[] = "hello" "trala";
1136     int linit12[10] = { 1, 2 };
1137     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1138     char linit14[10] = "abc";
1139     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1140     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1141     int linit17 = sizeof(linit17);
1142
1143     printf("init_test:\n");
1144
1145     printf("sinit1=%d\n", sinit1);
1146     printf("sinit2=%d\n", sinit2);
1147     printf("sinit3=%d %d %d %d\n",
1148            sizeof(sinit3),
1149            sinit3[0],
1150            sinit3[1],
1151            sinit3[2]
1152            );
1153     printf("sinit6=%d\n", sizeof(sinit6));
1154     printf("sinit7=%d %d %d %d\n",
1155            sizeof(sinit7),
1156            sinit7[0],
1157            sinit7[1],
1158            sinit7[2]
1159            );
1160     printf("sinit8=%s\n", sinit8);
1161     printf("sinit9=%d %d %d\n",
1162            sinit9.f1,
1163            sinit9.f2,
1164            sinit9.f3
1165            );
1166     printf("sinit10=%d %d %d\n",
1167            sinit10.f1,
1168            sinit10.f2,
1169            sinit10.f3
1170            );
1171     printf("sinit11=%d %d %d %d %d %d\n",
1172            sinit11.f1,
1173            sinit11.f2,
1174            sinit11.f3,
1175            sinit11.farray[0],
1176            sinit11.farray[1],
1177            sinit11.farray[2]
1178            );
1179
1180     for(i=0;i<3;i++)
1181         for(j=0;j<2;j++)
1182             printf("[%d][%d] = %d %d %d\n",
1183                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1184     printf("linit1=%d\n", linit1);
1185     printf("linit2=%d\n", linit2);
1186     printf("linit6=%d\n", sizeof(linit6));
1187     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1188
1189     printf("sinit12=%s\n", sinit12);
1190     printf("sinit13=%d %s %s %s\n",
1191            sizeof(sinit13),
1192            sinit13[0],
1193            sinit13[1],
1194            sinit13[2]);
1195     printf("sinit14=%s\n", sinit14);
1196
1197     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1198     printf("\n");
1199     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1200     printf("\n");
1201     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1202     printf("\n");
1203     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1204     printf("\n");
1205     printf("%d %d %d %d\n",
1206            linit16.a1,
1207            linit16.a2,
1208            linit16.a3,
1209            linit16.a4);
1210     /* test that initialisation is done after variable declare */
1211     printf("linit17=%d\n", linit17);
1212     printf("sinit15=%d\n", sinit15[0]);
1213     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1214     printf("sinit17=%s %d %s %d\n",
1215            sinit17[0].s, sinit17[0].len,
1216            sinit17[1].s, sinit17[1].len);
1217     for(i=0;i<10;i++)
1218         printf("%x ", sinit18[i]);
1219     printf("\n");
1220 }
1221
1222
1223 void switch_test()
1224 {
1225     int i;
1226
1227     for(i=0;i<15;i++) {
1228         switch(i) {
1229         case 0:
1230         case 1:
1231             printf("a");
1232             break;
1233         default:
1234             printf("%d", i);
1235             break;
1236         case 8 ... 12:
1237             printf("c");
1238             break;
1239         case 3:
1240             printf("b");
1241             break;
1242         }
1243     }
1244     printf("\n");
1245 }
1246
1247 /* ISOC99 _Bool type */
1248 void c99_bool_test(void)
1249 {
1250 #ifdef BOOL_ISOC99
1251     int a;
1252     _Bool b;
1253
1254     printf("bool_test:\n");
1255     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1256     a = 3;
1257     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1258     b = 3;
1259     printf("b = %d\n", b);
1260     b++;
1261     printf("b = %d\n", b);
1262 #endif
1263 }
1264
1265 void bitfield_test(void)
1266 {
1267     int a;
1268     struct sbf1 {
1269         int f1 : 3;
1270         int : 2;
1271         int f2 : 1;
1272         int : 0;
1273         int f3 : 5;
1274         int f4 : 7;
1275         unsigned int f5 : 7;
1276     } st1;
1277     printf("bitfield_test:");
1278     printf("sizeof(st1) = %d\n", sizeof(st1));
1279
1280     st1.f1 = 3;
1281     st1.f2 = 1;
1282     st1.f3 = 15;
1283     a = 120;
1284     st1.f4 = a;
1285     st1.f5 = a;
1286     st1.f5++;
1287     printf("%d %d %d %d %d\n",
1288            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1289 }
1290
1291 #define FTEST(prefix, type, fmt)\
1292 void prefix ## cmp(type a, type b)\
1293 {\
1294     printf("%d %d %d %d %d %d\n",\
1295            a == b,\
1296            a != b,\
1297            a < b,\
1298            a > b,\
1299            a >= b,\
1300            a <= b);\
1301     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1302            a,\
1303            b,\
1304            a + b,\
1305            a - b,\
1306            a * b,\
1307            a / b,\
1308            -a);\
1309     printf(fmt "\n", ++a);\
1310     printf(fmt "\n", a++);\
1311     printf(fmt "\n", a);\
1312 }\
1313 void prefix ## fcast(type a)\
1314 {\
1315     float fa;\
1316     double da;\
1317     long double la;\
1318     int ia;\
1319     unsigned int ua;\
1320     type b;\
1321     fa = a;\
1322     da = a;\
1323     la = a;\
1324     printf("ftof: %f %f %Lf\n", fa, da, la);\
1325     ia = (int)a;\
1326     ua = (unsigned int)a;\
1327     printf("ftoi: %d %u\n", ia, ua);\
1328     ia = -1234;\
1329     ua = 0x81234500;\
1330     b = ia;\
1331     printf("itof: " fmt "\n", b);\
1332     b = ua;\
1333     printf("utof: " fmt "\n", b);\
1334 }\
1335 \
1336 void prefix ## test(void)\
1337 {\
1338     printf("testing '%s'\n", #type);\
1339     prefix ## cmp(1, 2.5);\
1340     prefix ## cmp(2, 1.5);\
1341     prefix ## cmp(1, 1);\
1342     prefix ## fcast(234.6);\
1343     prefix ## fcast(-2334.6);\
1344 }
1345
1346 FTEST(f, float, "%f")
1347 FTEST(d, double, "%f")
1348 FTEST(ld, long double, "%Lf")
1349
1350 double ftab1[3] = { 1.2, 3.4, -5.6 };
1351
1352
1353 void float_test(void)
1354 {
1355     float fa, fb;
1356     double da, db;
1357     int a;
1358     unsigned int b;
1359
1360     printf("float_test:\n");
1361     printf("sizeof(float) = %d\n", sizeof(float));
1362     printf("sizeof(double) = %d\n", sizeof(double));
1363     printf("sizeof(long double) = %d\n", sizeof(long double));
1364     ftest();
1365     dtest();
1366     ldtest();
1367     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1368     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1369     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1370     da = 123;
1371     printf("da=%f\n", da);
1372     fa = 123;
1373     printf("fa=%f\n", fa);
1374     a = 4000000000;
1375     da = a;
1376     printf("da = %f\n", da);
1377     b = 4000000000;
1378     db = b;
1379     printf("db = %f\n", db);
1380 }
1381
1382 int fib(int n)
1383 {
1384     if (n <= 2)
1385         return 1;
1386     else
1387         return fib(n-1) + fib(n-2);
1388 }
1389
1390 void funcptr_test()
1391 {
1392     void (*func)(int);
1393     int a;
1394     struct {
1395         int dummy;
1396         void (*func)(int);
1397     } st1;
1398
1399     printf("funcptr:\n");
1400     func = &num;
1401     (*func)(12345);
1402     func = num;
1403     a = 1;
1404     a = 1;
1405     func(12345);
1406     /* more complicated pointer computation */
1407     st1.func = num;
1408     st1.func(12346);
1409     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1410     printf("sizeof2 = %d\n", sizeof funcptr_test);
1411     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1412     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1413 }
1414
1415 void lloptest(long long a, long long b)
1416 {
1417     unsigned long long ua, ub;
1418
1419     ua = a;
1420     ub = b;
1421     /* arith */
1422     printf("arith: %Ld %Ld %Ld\n",
1423            a + b,
1424            a - b,
1425            a * b);
1426
1427     if (b != 0) {
1428         printf("arith1: %Ld %Ld\n",
1429            a / b,
1430            a % b);
1431     }
1432
1433     /* binary */
1434     printf("bin: %Ld %Ld %Ld\n",
1435            a & b,
1436            a | b,
1437            a ^ b);
1438
1439     /* tests */
1440     printf("test: %d %d %d %d %d %d\n",
1441            a == b,
1442            a != b,
1443            a < b,
1444            a > b,
1445            a >= b,
1446            a <= b);
1447
1448     printf("utest: %d %d %d %d %d %d\n",
1449            ua == ub,
1450            ua != ub,
1451            ua < ub,
1452            ua > ub,
1453            ua >= ub,
1454            ua <= ub);
1455
1456     /* arith2 */
1457     a++;
1458     b++;
1459     printf("arith2: %Ld %Ld\n", a, b);
1460     printf("arith2: %Ld %Ld\n", a++, b++);
1461     printf("arith2: %Ld %Ld\n", --a, --b);
1462     printf("arith2: %Ld %Ld\n", a, b);
1463 }
1464
1465 void llshift(long long a, int b)
1466 {
1467     printf("shift: %Ld %Ld %Ld\n",
1468            (unsigned long long)a >> b,
1469            a >> b,
1470            a << b);
1471     printf("shiftc: %Ld %Ld %Ld\n",
1472            (unsigned long long)a >> 3,
1473            a >> 3,
1474            a << 3);
1475     printf("shiftc: %Ld %Ld %Ld\n",
1476            (unsigned long long)a >> 35,
1477            a >> 35,
1478            a << 35);
1479 }
1480
1481 void llfloat(void)
1482 {
1483     float fa;
1484     double da;
1485     long double lda;
1486     long long la, lb, lc;
1487     unsigned long long ula, ulb, ulc;
1488     la = 0x12345678;
1489     ula = 0x72345678;
1490     la = (la << 20) | 0x12345;
1491     ula = ula << 33;
1492     printf("la=%Ld ula=%Lu\n", la, ula);
1493
1494     fa = la;
1495     da = la;
1496     lda = la;
1497     printf("lltof: %f %f %Lf\n", fa, da, lda);
1498
1499     la = fa;
1500     lb = da;
1501     lc = lda;
1502     printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
1503
1504     fa = ula;
1505     da = ula;
1506     lda = ula;
1507     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1508
1509     ula = fa;
1510     ulb = da;
1511     ulc = lda;
1512     printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
1513 }
1514
1515 long long llfunc1(int a)
1516 {
1517     return a * 2;
1518 }
1519
1520 struct S {
1521     int id;
1522     char item;
1523 };
1524
1525 long long int value(struct S *v)
1526 {
1527     return ((long long int)v->item);
1528 }
1529
1530 void longlong_test(void)
1531 {
1532     long long a, b, c;
1533     int ia;
1534     unsigned int ua;
1535     printf("longlong_test:\n");
1536     printf("sizeof(long long) = %d\n", sizeof(long long));
1537     ia = -1;
1538     ua = -2;
1539     a = ia;
1540     b = ua;
1541     printf("%Ld %Ld\n", a, b);
1542     printf("%Ld %Ld %Ld %Lx\n",
1543            (long long)1,
1544            (long long)-2,
1545            1LL,
1546            0x1234567812345679);
1547     a = llfunc1(-3);
1548     printf("%Ld\n", a);
1549
1550     lloptest(1000, 23);
1551     lloptest(0xff, 0x1234);
1552     b = 0x72345678 << 10;
1553     lloptest(-3, b);
1554     llshift(0x123, 5);
1555     llshift(-23, 5);
1556     b = 0x72345678LL << 10;
1557     llshift(b, 47);
1558
1559     llfloat();
1560 #if 1
1561     b = 0x12345678;
1562     a = -1;
1563     c = a + b;
1564     printf("%Lx\n", c);
1565 #endif
1566
1567     /* long long reg spill test */
1568     {
1569           struct S a;
1570
1571           a.item = 3;
1572           printf("%lld\n", value(&a));
1573     }
1574     lloptest(0x80000000, 0);
1575 }
1576
1577 void vprintf1(const char *fmt, ...)
1578 {
1579     va_list ap;
1580     const char *p;
1581     int c, i;
1582     double d;
1583     long long ll;
1584
1585     va_start(ap, fmt);
1586
1587     p = fmt;
1588     for(;;) {
1589         c = *p;
1590         if (c == '\0')
1591             break;
1592         p++;
1593         if (c == '%') {
1594             c = *p;
1595             switch(c) {
1596             case '\0':
1597                 goto the_end;
1598             case 'd':
1599                 i = va_arg(ap, int);
1600                 printf("%d", i);
1601                 break;
1602             case 'f':
1603                 d = va_arg(ap, double);
1604                 printf("%f", d);
1605                 break;
1606             case 'l':
1607                 ll = va_arg(ap, long long);
1608                 printf("%Ld", ll);
1609                 break;
1610             }
1611             p++;
1612         } else {
1613             putchar(c);
1614         }
1615     }
1616  the_end:
1617     va_end(ap);
1618 }
1619
1620
1621 void stdarg_test(void)
1622 {
1623     vprintf1("%d %d %d\n", 1, 2, 3);
1624     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
1625     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
1626 }
1627
1628 void whitespace_test(void)
1629 {
1630     char *str;
1631
1632 \f\v
#if 1
1633     pri\
1634 ntf("whitspace:\n");\f\v
1635 #endif
1636     pf("N=%d\n", 2);
1637
1638 #ifdef CORRECT_CR_HANDLING
1639     pri\
1640 ntf("aaa=%d\n", 3);
1641 #endif
1642
1643     pri\
1644 \
1645 ntf("min=%d\n", 4);
1646     printf("len1=%d\n", strlen("
1647 "));
1648 #ifdef CORRECT_CR_HANDLING
1649     str = "
1650 ";
1651     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
1652 #endif
1653     printf("len1=%d\n", strlen("
a
1654 "));
1655 }
1656
1657 int reltab[3] = { 1, 2, 3 };
1658
1659 int *rel1 = &reltab[1];
1660 int *rel2 = &reltab[2];
1661
1662 void relocation_test(void)
1663 {
1664     printf("*rel1=%d\n", *rel1);
1665     printf("*rel2=%d\n", *rel2);
1666 }
1667
1668 void old_style_f(a,b,c)
1669      int a, b;
1670      double c;
1671 {
1672     printf("a=%d b=%d b=%f\n", a, b, c);
1673 }
1674
1675 void decl_func1(int cmpfn())
1676 {
1677     printf("cmpfn=%lx\n", (long)cmpfn);
1678 }
1679
1680 void decl_func2(cmpfn)
1681 int cmpfn();
1682 {
1683     printf("cmpfn=%lx\n", (long)cmpfn);
1684 }
1685
1686 void old_style_function(void)
1687 {
1688     old_style_f((void *)1, 2, 3.0);
1689     decl_func1(NULL);
1690     decl_func2(NULL);
1691 }
1692
1693 void sizeof_test(void)
1694 {
1695     int a;
1696     int **ptr;
1697
1698     printf("sizeof(int) = %d\n", sizeof(int));
1699     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
1700     printf("sizeof(short) = %d\n", sizeof(short));
1701     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
1702     printf("sizeof(char) = %d\n", sizeof(char));
1703     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
1704     printf("sizeof(func) = %d\n", sizeof sizeof_test());
1705     a = 1;
1706     printf("sizeof(a++) = %d\n", sizeof a++);
1707     printf("a=%d\n", a);
1708     ptr = NULL;
1709     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
1710
1711     /* some alignof tests */
1712     printf("__alignof__(int) = %d\n", __alignof__(int));
1713     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
1714     printf("__alignof__(short) = %d\n", __alignof__(short));
1715     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
1716     printf("__alignof__(char) = %d\n", __alignof__(char));
1717     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
1718     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
1719 }
1720
1721 void typeof_test(void)
1722 {
1723     double a;
1724     typeof(a) b;
1725     typeof(float) c;
1726
1727     a = 1.5;
1728     b = 2.5;
1729     c = 3.5;
1730     printf("a=%f b=%f c=%f\n", a, b, c);
1731 }
1732
1733 void statement_expr_test(void)
1734 {
1735     int a, i;
1736
1737     a = 0;
1738     for(i=0;i<10;i++) {
1739         a += 1 +
1740             ( { int b, j;
1741                 b = 0;
1742                 for(j=0;j<5;j++)
1743                     b += j; b;
1744             } );
1745     }
1746     printf("a=%d\n", a);
1747
1748 }
1749
1750 void local_label_test(void)
1751 {
1752     int a;
1753     goto l1;
1754  l2:
1755     a = 1 + ({
1756         __label__ l1, l2, l3;
1757         goto l4;
1758     l5:
1759         printf("aa1\n");
1760         goto l1;
1761     l2:
1762         printf("aa3\n");
1763         goto l3;
1764     l1:
1765         printf("aa2\n");
1766         goto l2;
1767     l3:;
1768         1;
1769     });
1770     printf("a=%d\n", a);
1771     return;
1772  l1:
1773     printf("bb1\n");
1774     goto l2;
1775  l4:
1776     printf("bb2\n");
1777     goto l5;
1778 }
1779
1780 /* inline assembler test */
1781 #ifdef __i386__
1782
1783 /* from linux kernel */
1784 static char * strncat1(char * dest,const char * src,size_t count)
1785 {
1786 int d0, d1, d2, d3;
1787 __asm__ __volatile__(
1788         "repne\n\t"
1789         "scasb\n\t"
1790         "decl %1\n\t"
1791         "movl %8,%3\n"
1792         "1:\tdecl %3\n\t"
1793         "js 2f\n\t"
1794         "lodsb\n\t"
1795         "stosb\n\t"
1796         "testb %%al,%%al\n\t"
1797         "jne 1b\n"
1798         "2:\txorl %2,%2\n\t"
1799         "stosb"
1800         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
1801         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
1802         : "memory");
1803 return dest;
1804 }
1805
1806 static inline void * memcpy1(void * to, const void * from, size_t n)
1807 {
1808 int d0, d1, d2;
1809 __asm__ __volatile__(
1810         "rep ; movsl\n\t"
1811         "testb $2,%b4\n\t"
1812         "je 1f\n\t"
1813         "movsw\n"
1814         "1:\ttestb $1,%b4\n\t"
1815         "je 2f\n\t"
1816         "movsb\n"
1817         "2:"
1818         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
1819         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
1820         : "memory");
1821 return (to);
1822 }
1823
1824 static __inline__ void sigaddset1(unsigned int *set, int _sig)
1825 {
1826         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
1827 }
1828
1829 static __inline__ void sigdelset1(unsigned int *set, int _sig)
1830 {
1831         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
1832 }
1833
1834 static __inline__ __const__ unsigned int swab32(unsigned int x)
1835 {
1836         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
1837                 "rorl $16,%0\n\t"       /* swap words           */
1838                 "xchgb %b0,%h0"         /* swap higher bytes    */
1839                 :"=q" (x)
1840                 : "0" (x));
1841         return x;
1842 }
1843
1844 unsigned int set;
1845
1846 void asm_test(void)
1847 {
1848     char buf[128];
1849     unsigned int val;
1850
1851     printf("inline asm:\n");
1852     memcpy1(buf, "hello", 6);
1853     strncat1(buf, " worldXXXXX", 3);
1854     printf("%s\n", buf);
1855
1856     set = 0xff;
1857     sigdelset1(&set, 2);
1858     sigaddset1(&set, 16);
1859     /* NOTE: we test here if C labels are correctly restored after the
1860        asm statement */
1861     goto label1;
1862  label2:
1863     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
1864     printf("set=0x%x\n", set);
1865     val = 0x01020304;
1866     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
1867     return;
1868  label1:
1869     goto label2;
1870 }
1871
1872 #else
1873
1874 void asm_test(void)
1875 {
1876 }
1877
1878 #endif