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 /* deprecated and no longer supported in gcc 3.3 */
  20 //#define ACCEPT_CR_IN_STRINGS
  21
  22 /* __VA_ARGS__ and __func__ support */
  23 #define C99_MACROS
  24
  25 /* test various include syntaxes */
  26
  27 #define TCCLIB_INC <tcclib.h>
  28 #define TCCLIB_INC1 <tcclib
  29 #define TCCLIB_INC2 h>
  30 #define TCCLIB_INC3 "tcclib"
  31
  32 #include TCCLIB_INC
  33
  34 #include TCCLIB_INC1.TCCLIB_INC2
  35
  36 #include TCCLIB_INC1.h>
  37
  38 /* gcc 3.2 does not accept that (bug ?) */
  39 //#include TCCLIB_INC3 ".h"
  40
  41 #include <tcclib.h>
  42
  43 #include "tcclib.h"
  44
  45 void string_test();
  46 void expr_test();
  47 void macro_test();
  48 void scope_test();
  49 void forward_test();
  50 void funcptr_test();
  51 void loop_test();
  52 void switch_test();
  53 void goto_test();
  54 void enum_test();
  55 void typedef_test();
  56 void struct_test();
  57 void array_test();
  58 void expr_ptr_test();
  59 void bool_test();
  60 void expr2_test();
  61 void constant_expr_test();
  62 void expr_cmp_test();
  63 void char_short_test();
  64 void init_test(void);
  65 void compound_literal_test(void);
  66 int kr_test();
  67 void struct_assign_test(void);
  68 void cast_test(void);
  69 void bitfield_test(void);
  70 void c99_bool_test(void);
  71 void float_test(void);
  72 void longlong_test(void);
  73 void stdarg_test(void);
  74 void whitespace_test(void);
  75 void relocation_test(void);
  76 void old_style_function(void);
  77 void sizeof_test(void);
  78 void typeof_test(void);
  79 void local_label_test(void);
  80 void statement_expr_test(void);
  81 void asm_test(void);
  82 void builtin_test(void);
  83
  84 int fib(int n);
  85 void num(int n);
  86 void forward_ref(void);
  87 int isid(int c);
  88
  89 #define A 2
  90 #define N 1234 + A
  91 #define pf printf
  92 #define M1(a, b)  (a) + (b)
  93
  94 #define str\
  95 (s) # s
  96 #define glue(a, b) a ## b
  97 #define xglue(a, b) glue(a, b)
  98 #define HIGHLOW "hello"
  99 #define LOW LOW ", world"
 100
 101 #define min(a, b) ((a) < (b) ? (a) : (b))
 102
 103 #ifdef C99_MACROS
 104 #define dprintf(level,...) printf(__VA_ARGS__)
 105 #endif
 106
 107 /* gcc vararg macros */
 108 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 109
 110 #define MACRO_NOARGS()
 111
 112 #define AAA 3
 113 #undef AAA
 114 #define AAA 4
 115
 116 #if 1
 117 #define B3 1
 118 #elif 1
 119 #define B3 2
 120 #elif 0
 121 #define B3 3
 122 #else
 123 #define B3 4
 124 #endif
 125
 126 #define __INT64_C(c)    c ## LL
 127 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 128
 129 int qq(int x)
 130 {
 131     return x + 40;
 132 }
 133 #define qq(x) x
 134
 135 #define spin_lock(lock) do { } while (0)
 136 #define wq_spin_lock spin_lock
 137 #define TEST2() wq_spin_lock(a)
 138
 139 void macro_test(void)
 140 {
 141     printf("macro:\n");\f\v
 142     pf("N=%d\n", N);
 143     printf("aaa=%d\n", AAA);
 144
 145     printf("min=%d\n", min(1, min(2, -1)));
 146
 147     printf("s1=%s\n", glue(HIGH, LOW));
 148     printf("s2=%s\n", xglue(HIGH, LOW));
 149     printf("s3=%s\n", str("c"));
 150     printf("s4=%s\n", str(a1));
 151     printf("B3=%d\n", B3);
 152
 153 #ifdef A
 154     printf("A defined\n");
 155 #endif
 156 #ifdef B
 157     printf("B defined\n");
 158 #endif
 159 #ifdef A
 160     printf("A defined\n");
 161 #else
 162     printf("A not defined\n");
 163 #endif
 164 #ifdef B
 165     printf("B defined\n");
 166 #else
 167     printf("B not defined\n");
 168 #endif
 169
 170 #ifdef A
 171     printf("A defined\n");
 172 #ifdef B
 173     printf("B1 defined\n");
 174 #else
 175     printf("B1 not defined\n");
 176 #endif
 177 #else
 178     printf("A not defined\n");
 179 #ifdef B
 180     printf("B2 defined\n");
 181 #else
 182     printf("B2 not defined\n");
 183 #endif
 184 #endif
 185
 186 #if 1+1
 187     printf("test true1\n");
 188 #endif
 189 #if 0
 190     printf("test true2\n");
 191 #endif
 192 #if 1-1
 193     printf("test true3\n");
 194 #endif
 195 #if defined(A)
 196     printf("test trueA\n");
 197 #endif
 198 #if defined(B)
 199     printf("test trueB\n");
 200 #endif
 201
 202 #if 0
 203     printf("test 0\n");
 204 #elif 0
 205     printf("test 1\n");
 206 #elif 2
 207     printf("test 2\n");
 208 #else
 209     printf("test 3\n");
 210 #endif
 211
 212     MACRO_NOARGS();
 213
 214 #ifdef __LINE__
 215     printf("__LINE__ defined\n");
 216 #endif
 217
 218     printf("__LINE__=%d __FILE__=%s\n",
 219            __LINE__, __FILE__);
 220 #line 200
 221     printf("__LINE__=%d __FILE__=%s\n",
 222            __LINE__, __FILE__);
 223 #line 203 "test"
 224     printf("__LINE__=%d __FILE__=%s\n",
 225            __LINE__, __FILE__);
 226 #line 227 "tcctest.c"
 227
 228     /* not strictly preprocessor, but we test it there */
 229 #ifdef C99_MACROS
 230     printf("__func__ = %s\n", __func__);
 231     dprintf(1, "vaarg=%d\n", 1);
 232 #endif
 233     dprintf1(1, "vaarg1\n");
 234     dprintf1(1, "vaarg1=%d\n", 2);
 235     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 236
 237     /* gcc extension */
 238     printf("func='%s'\n", __FUNCTION__);
 239
 240     /* complicated macros in glibc */
 241     printf("INT64_MIN=%Ld\n", INT64_MIN);
 242     {
 243         int a;
 244         a = 1;
 245         glue(a+, +);
 246         printf("a=%d\n", a);
 247         glue(a <, <= 2);
 248         printf("a=%d\n", a);
 249     }
 250
 251     /* macro function with argument outside the macro string */
 252 #define MF_s MF_hello
 253 #define MF_hello(msg) printf("%s\n",msg)
 254
 255 #define MF_t printf("tralala\n"); MF_hello
 256
 257     MF_s("hi");
 258     MF_t("hi");
 259
 260     /* test macro substituion inside args (should not eat stream) */
 261     printf("qq=%d\n", qq(qq)(2));
 262
 263     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 264        null argument without a space. gcc 3.2 fixes that. */
 265
 266 #define qq1(x) 1
 267     printf("qq1=%d\n", qq1( ));
 268
 269     /* comment with stray handling *\
 270 /
 271        /* this is a valid *\/ comment */
 272        /* this is a valid comment *\*/
 273     //  this is a valid\
 274 comment
 275
 276     /* test function macro substitution when the function name is
 277        substituted */
 278     TEST2();
 279 }
 280
 281 int op(a,b)
 282 {
 283     return a / b;
 284 }
 285
 286 int ret(a)
 287 {
 288     if (a == 2)
 289         return 1;
 290     if (a == 3)
 291         return 2;
 292     return 0;
 293 }
 294
 295 void ps(const char *s)
 296 {
 297     int c;
 298     while (1) {
 299         c = *s;
 300         if (c == 0)
 301             break;
 302         printf("%c", c);
 303         s++;
 304     }
 305 }
 306
 307 const char foo1_string[] = "\
 308 bar\n\
 309 test\14\
 310 1";
 311
 312 void string_test()
 313 {
 314     int b;
 315     printf("string:\n");
 316     printf("\141\1423\143\n");/* dezdez test */
 317     printf("\x41\x42\x43\x3a\n");
 318     printf("c=%c\n", 'r');
 319     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 320     printf("foo1_string='%s'\n", foo1_string);
 321 #if 0
 322     printf("wstring=%S\n", L"abc");
 323     printf("wstring=%S\n", L"abc" L"def" "ghi");
 324     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 325     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 326 #endif
 327     ps("test\n");
 328     b = 32;
 329     while ((b = b + 1) < 96) {
 330         printf("%c", b);
 331     }
 332     printf("\n");
 333     printf("fib=%d\n", fib(33));
 334     b = 262144;
 335     while (b != 0x80000000) {
 336         num(b);
 337         b = b * 2;
 338     }
 339 }
 340
 341 void loop_test()
 342 {
 343     int i;
 344     i = 0;
 345     while (i < 10)
 346         printf("%d", i++);
 347     printf("\n");
 348     for(i = 0; i < 10;i++)
 349         printf("%d", i);
 350     printf("\n");
 351     i = 0;
 352     do {
 353         printf("%d", i++);
 354     } while (i < 10);
 355     printf("\n");
 356
 357     /* break/continue tests */
 358     i = 0;
 359     while (1) {
 360         if (i == 6)
 361             break;
 362         i++;
 363         if (i == 3)
 364             continue;
 365         printf("%d", i);
 366     }
 367     printf("\n");
 368
 369     /* break/continue tests */
 370     i = 0;
 371     do {
 372         if (i == 6)
 373             break;
 374         i++;
 375         if (i == 3)
 376             continue;
 377         printf("%d", i);
 378     } while(1);
 379     printf("\n");
 380
 381     for(i = 0;i < 10;i++) {
 382         if (i == 3)
 383             continue;
 384         printf("%d", i);
 385     }
 386     printf("\n");
 387 }
 388
 389
 390 void goto_test()
 391 {
 392     int i;
 393     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 394
 395     printf("goto:\n");
 396     i = 0;
 397  s_loop:
 398     if (i >= 10)
 399         goto s_end;
 400     printf("%d", i);
 401     i++;
 402     goto s_loop;
 403  s_end:
 404     printf("\n");
 405
 406     /* we also test computed gotos (GCC extension) */
 407     for(i=0;i<3;i++) {
 408         goto *label_table[i];
 409     label1:
 410         printf("label1\n");
 411         goto next;
 412     label2:
 413         printf("label2\n");
 414         goto next;
 415     label3:
 416         printf("label3\n");
 417     next: ;
 418     }
 419 }
 420
 421 enum {
 422     E0,
 423     E1 = 2,
 424     E2 = 4,
 425     E3,
 426     E4,
 427 };
 428
 429 enum test {
 430     E5 = 1000,
 431 };
 432
 433 void enum_test()
 434 {
 435     enum test b1;
 436     printf("enum:\n%d %d %d %d %d %d\n",
 437            E0, E1, E2, E3, E4, E5);
 438     b1 = 1;
 439     printf("b1=%d\n", b1);
 440 }
 441
 442 typedef int *my_ptr;
 443
 444 typedef int mytype1;
 445 typedef int mytype2;
 446
 447 void typedef_test()
 448 {
 449     my_ptr a;
 450     mytype1 mytype2;
 451     int b;
 452
 453     a = &b;
 454     *a = 1234;
 455     printf("typedef:\n");
 456     printf("a=%d\n", *a);
 457     mytype2 = 2;
 458     printf("mytype2=%d\n", mytype2);
 459 }
 460
 461 void forward_test()
 462 {
 463     printf("forward:\n");
 464     forward_ref();
 465     forward_ref();
 466 }
 467
 468
 469 void forward_ref(void)
 470 {
 471     printf("forward ok\n");
 472 }
 473
 474 typedef struct struct1 {
 475     int f1;
 476     int f2, f3;
 477     union union1 {
 478         int v1;
 479         int v2;
 480     } u;
 481     char str[3];
 482 } struct1;
 483
 484 struct struct2 {
 485     int a;
 486     char b;
 487 };
 488
 489 union union2 {
 490     int w1;
 491     int w2;
 492 };
 493
 494 struct struct1 st1, st2;
 495
 496 int main(int argc, char **argv)
 497 {
 498     string_test();
 499     expr_test();
 500     macro_test();
 501     scope_test();
 502     forward_test();
 503     funcptr_test();
 504     loop_test();
 505     switch_test();
 506     goto_test();
 507     enum_test();
 508     typedef_test();
 509     struct_test();
 510     array_test();
 511     expr_ptr_test();
 512     bool_test();
 513     expr2_test();
 514     constant_expr_test();
 515     expr_cmp_test();
 516     char_short_test();
 517     init_test();
 518     compound_literal_test();
 519     kr_test();
 520     struct_assign_test();
 521     cast_test();
 522     bitfield_test();
 523     c99_bool_test();
 524     float_test();
 525     longlong_test();
 526     stdarg_test();
 527     whitespace_test();
 528     relocation_test();
 529     old_style_function();
 530     sizeof_test();
 531     typeof_test();
 532     statement_expr_test();
 533     local_label_test();
 534     asm_test();
 535     builtin_test();
 536     return 0;
 537 }
 538
 539 int tab[3];
 540 int tab2[3][2];
 541
 542 int g;
 543
 544 void f1(g)
 545 {
 546     printf("g1=%d\n", g);
 547 }
 548
 549 void scope_test()
 550 {
 551     printf("scope:\n");
 552     g = 2;
 553     f1(1);
 554     printf("g2=%d\n", g);
 555     {
 556         int g;
 557         g = 3;
 558         printf("g3=%d\n", g);
 559         {
 560             int g;
 561             g = 4;
 562             printf("g4=%d\n", g);
 563         }
 564     }
 565     printf("g5=%d\n", g);
 566 }
 567
 568 void array_test(int a[4])
 569 {
 570     int i, j;
 571
 572     printf("array:\n");
 573     printf("sizeof(a) = %d\n", sizeof(a));
 574     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 575 #ifdef C99_MACROS
 576     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 577 #endif
 578     printf("sizeof tab %d\n", sizeof(tab));
 579     printf("sizeof tab2 %d\n", sizeof tab2);
 580     tab[0] = 1;
 581     tab[1] = 2;
 582     tab[2] = 3;
 583     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 584     for(i=0;i<3;i++)
 585         for(j=0;j<2;j++)
 586             tab2[i][j] = 10 * i + j;
 587     for(i=0;i<3*2;i++) {
 588         printf(" %3d", ((int *)tab2)[i]);
 589     }
 590     printf("\n");
 591 }
 592
 593 void expr_test()
 594 {
 595     int a, b;
 596     a = 0;
 597     printf("%d\n", a += 1);
 598     printf("%d\n", a -= 2);
 599     printf("%d\n", a *= 31232132);
 600     printf("%d\n", a /= 4);
 601     printf("%d\n", a %= 20);
 602     printf("%d\n", a &= 6);
 603     printf("%d\n", a ^= 7);
 604     printf("%d\n", a |= 8);
 605     printf("%d\n", a >>= 3);
 606     printf("%d\n", a <<= 4);
 607
 608     a = 22321;
 609     b = -22321;
 610     printf("%d\n", a + 1);
 611     printf("%d\n", a - 2);
 612     printf("%d\n", a * 312);
 613     printf("%d\n", a / 4);
 614     printf("%d\n", b / 4);
 615     printf("%d\n", (unsigned)b / 4);
 616     printf("%d\n", a % 20);
 617     printf("%d\n", b % 20);
 618     printf("%d\n", (unsigned)b % 20);
 619     printf("%d\n", a & 6);
 620     printf("%d\n", a ^ 7);
 621     printf("%d\n", a | 8);
 622     printf("%d\n", a >> 3);
 623     printf("%d\n", b >> 3);
 624     printf("%d\n", (unsigned)b >> 3);
 625     printf("%d\n", a << 4);
 626     printf("%d\n", ~a);
 627     printf("%d\n", -a);
 628     printf("%d\n", +a);
 629
 630     printf("%d\n", 12 + 1);
 631     printf("%d\n", 12 - 2);
 632     printf("%d\n", 12 * 312);
 633     printf("%d\n", 12 / 4);
 634     printf("%d\n", 12 % 20);
 635     printf("%d\n", 12 & 6);
 636     printf("%d\n", 12 ^ 7);
 637     printf("%d\n", 12 | 8);
 638     printf("%d\n", 12 >> 2);
 639     printf("%d\n", 12 << 4);
 640     printf("%d\n", ~12);
 641     printf("%d\n", -12);
 642     printf("%d\n", +12);
 643     printf("%d %d %d %d\n",
 644            isid('a'),
 645            isid('g'),
 646            isid('T'),
 647            isid('('));
 648 }
 649
 650 int isid(int c)
 651 {
 652     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 653 }
 654
 655 /**********************/
 656
 657 int vstack[10], *vstack_ptr;
 658
 659 void vpush(int vt, int vc)
 660 {
 661     *vstack_ptr++ = vt;
 662     *vstack_ptr++ = vc;
 663 }
 664
 665 void vpop(int *ft, int *fc)
 666 {
 667     *fc = *--vstack_ptr;
 668     *ft = *--vstack_ptr;
 669 }
 670
 671 void expr2_test()
 672 {
 673     int a, b;
 674
 675     printf("expr2:\n");
 676     vstack_ptr = vstack;
 677     vpush(1432432, 2);
 678     vstack_ptr[-2] &= ~0xffffff80;
 679     vpop(&a, &b);
 680     printf("res= %d %d\n", a, b);
 681 }
 682
 683 void constant_expr_test()
 684 {
 685     int a;
 686     printf("constant_expr:\n");
 687     a = 3;
 688     printf("%d\n", a * 16);
 689     printf("%d\n", a * 1);
 690     printf("%d\n", a + 0);
 691 }
 692
 693 int tab4[10];
 694
 695 void expr_ptr_test()
 696 {
 697     int *p, *q;
 698
 699     printf("expr_ptr:\n");
 700     p = tab4;
 701     q = tab4 + 10;
 702     printf("diff=%d\n", q - p);
 703     p++;
 704     printf("inc=%d\n", p - tab4);
 705     p--;
 706     printf("dec=%d\n", p - tab4);
 707     ++p;
 708     printf("inc=%d\n", p - tab4);
 709     --p;
 710     printf("dec=%d\n", p - tab4);
 711     printf("add=%d\n", p + 3 - tab4);
 712     printf("add=%d\n", 3 + p - tab4);
 713 }
 714
 715 void expr_cmp_test()
 716 {
 717     int a, b;
 718     printf("constant_expr:\n");
 719     a = -1;
 720     b = 1;
 721     printf("%d\n", a == a);
 722     printf("%d\n", a != a);
 723
 724     printf("%d\n", a < b);
 725     printf("%d\n", a <= b);
 726     printf("%d\n", a <= a);
 727     printf("%d\n", b >= a);
 728     printf("%d\n", a >= a);
 729     printf("%d\n", b > a);
 730
 731     printf("%d\n", (unsigned)a < b);
 732     printf("%d\n", (unsigned)a <= b);
 733     printf("%d\n", (unsigned)a <= a);
 734     printf("%d\n", (unsigned)b >= a);
 735     printf("%d\n", (unsigned)a >= a);
 736     printf("%d\n", (unsigned)b > a);
 737 }
 738
 739 struct empty {
 740 };
 741
 742 struct aligntest1 {
 743     char a[10];
 744 };
 745
 746 struct aligntest2 {
 747     int a;
 748     char b[10];
 749 };
 750
 751 struct aligntest3 {
 752     double a, b;
 753 };
 754
 755 struct aligntest4 {
 756     double a[0];
 757 };
 758
 759 void struct_test()
 760 {
 761     struct1 *s;
 762     union union2 u;
 763
 764     printf("struct:\n");
 765     printf("sizes: %d %d %d %d\n",
 766            sizeof(struct struct1),
 767            sizeof(struct struct2),
 768            sizeof(union union1),
 769            sizeof(union union2));
 770     st1.f1 = 1;
 771     st1.f2 = 2;
 772     st1.f3 = 3;
 773     printf("st1: %d %d %d\n",
 774            st1.f1, st1.f2, st1.f3);
 775     st1.u.v1 = 1;
 776     st1.u.v2 = 2;
 777     printf("union1: %d\n", st1.u.v1);
 778     u.w1 = 1;
 779     u.w2 = 2;
 780     printf("union2: %d\n", u.w1);
 781     s = &st2;
 782     s->f1 = 3;
 783     s->f2 = 2;
 784     s->f3 = 1;
 785     printf("st2: %d %d %d\n",
 786            s->f1, s->f2, s->f3);
 787     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 788
 789     /* align / size tests */
 790     printf("aligntest1 sizeof=%d alignof=%d\n",
 791            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 792     printf("aligntest2 sizeof=%d alignof=%d\n",
 793            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 794     printf("aligntest3 sizeof=%d alignof=%d\n",
 795            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 796     printf("aligntest4 sizeof=%d alignof=%d\n",
 797            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 798
 799     /* empty structures (GCC extension) */
 800     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 801     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 802 }
 803
 804 /* XXX: depend on endianness */
 805 void char_short_test()
 806 {
 807     int var1, var2;
 808
 809     printf("char_short:\n");
 810
 811     var1 = 0x01020304;
 812     var2 = 0xfffefdfc;
 813     printf("s8=%d %d\n",
 814            *(char *)&var1, *(char *)&var2);
 815     printf("u8=%d %d\n",
 816            *(unsigned char *)&var1, *(unsigned char *)&var2);
 817     printf("s16=%d %d\n",
 818            *(short *)&var1, *(short *)&var2);
 819     printf("u16=%d %d\n",
 820            *(unsigned short *)&var1, *(unsigned short *)&var2);
 821     printf("s32=%d %d\n",
 822            *(int *)&var1, *(int *)&var2);
 823     printf("u32=%d %d\n",
 824            *(unsigned int *)&var1, *(unsigned int *)&var2);
 825     *(char *)&var1 = 0x08;
 826     printf("var1=%x\n", var1);
 827     *(short *)&var1 = 0x0809;
 828     printf("var1=%x\n", var1);
 829     *(int *)&var1 = 0x08090a0b;
 830     printf("var1=%x\n", var1);
 831 }
 832
 833 /******************/
 834
 835 typedef struct Sym {
 836     int v;
 837     int t;
 838     int c;
 839     struct Sym *next;
 840     struct Sym *prev;
 841 } Sym;
 842
 843 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 844 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 845
 846 static int toupper1(int a)
 847 {
 848     return TOUPPER(a);
 849 }
 850
 851 void bool_test()
 852 {
 853     int *s, a, b, t, f, i;
 854
 855     a = 0;
 856     s = (void*)0;
 857     printf("!s=%d\n", !s);
 858
 859     if (!s || !s[0])
 860         a = 1;
 861     printf("a=%d\n", a);
 862
 863     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 864     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 865     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 866 #if 1 && 1
 867     printf("a1\n");
 868 #endif
 869 #if 1 || 0
 870     printf("a2\n");
 871 #endif
 872 #if 1 ? 0 : 1
 873     printf("a3\n");
 874 #endif
 875 #if 0 ? 0 : 1
 876     printf("a4\n");
 877 #endif
 878
 879     a = 4;
 880     printf("b=%d\n", a + (0 ? 1 : a / 2));
 881
 882     /* test register spilling */
 883     a = 10;
 884     b = 10;
 885     a = (a + b) * ((a < b) ?
 886                    ((b - a) * (a - b)): a + b);
 887     printf("a=%d\n", a);
 888
 889     /* test complex || or && expressions */
 890     t = 1;
 891     f = 0;
 892     a = 32;
 893     printf("exp=%d\n", f == (32 <= a && a <= 3));
 894     printf("r=%d\n", (t || f) + (t && f));
 895
 896     /* test ? : cast */
 897     {
 898         int aspect_on;
 899         int aspect_native = 65536;
 900         double bfu_aspect = 1.0;
 901         int aspect;
 902         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
 903             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
 904             printf("aspect=%d\n", aspect);
 905         }
 906     }
 907
 908     /* test ? : GCC extension */
 909     {
 910         static int v1 = 34 ? : -1; /* constant case */
 911         static int v2 = 0 ? : -1; /* constant case */
 912         int a = 30;
 913
 914         printf("%d %d\n", v1, v2);
 915         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
 916     }
 917
 918     /* again complex expression */
 919     for(i=0;i<256;i++) {
 920         if (toupper1 (i) != TOUPPER (i))
 921             printf("error %d\n", i);
 922     }
 923 }
 924
 925 /* GCC accepts that */
 926 static int tab_reinit[];
 927 static int tab_reinit[10];
 928
 929 //int cinit1; /* a global variable can be defined several times without error ! */
 930 int cinit1;
 931 int cinit1;
 932 int cinit1 = 0;
 933 int *cinit2 = (int []){3, 2, 1};
 934
 935 void compound_literal_test(void)
 936 {
 937     int *p, i;
 938     char *q, *q3;
 939
 940     printf("compound_test:\n");
 941
 942     p = (int []){1, 2, 3};
 943     for(i=0;i<3;i++)
 944         printf(" %d", p[i]);
 945     printf("\n");
 946
 947     for(i=0;i<3;i++)
 948         printf("%d", cinit2[i]);
 949     printf("\n");
 950
 951     q = "tralala1";
 952     printf("q1=%s\n", q);
 953
 954     q = (char *){ "tralala2" };
 955     printf("q2=%s\n", q);
 956
 957     q3 = (char *){ q };
 958     printf("q3=%s\n", q3);
 959
 960     q = (char []){ "tralala3" };
 961     printf("q4=%s\n", q);
 962
 963 #ifdef ALL_ISOC99
 964     p = (int []){1, 2, cinit1 + 3};
 965     for(i=0;i<3;i++)
 966         printf(" %d", p[i]);
 967     printf("\n");
 968
 969     for(i=0;i<3;i++) {
 970         p = (int []){1, 2, 4 + i};
 971         printf("%d %d %d\n",
 972                p[0],
 973                p[1],
 974                p[2]);
 975     }
 976 #endif
 977 }
 978
 979 /* K & R protos */
 980
 981 kr_func1(a, b)
 982 {
 983     return a + b;
 984 }
 985
 986 int kr_func2(a, b)
 987 {
 988     return a + b;
 989 }
 990
 991 kr_test()
 992 {
 993     printf("kr_test:\n");
 994     printf("func1=%d\n", kr_func1(3, 4));
 995     printf("func2=%d\n", kr_func2(3, 4));
 996     return 0;
 997 }
 998
 999 void num(int n)
1000 {
1001     char *tab, *p;
1002     tab = (char*)malloc(20);
1003     p = tab;
1004     while (1) {
1005         *p = 48 + (n % 10);
1006         p++;
1007         n = n / 10;
1008         if (n == 0)
1009             break;
1010     }
1011     while (p != tab) {
1012         p--;
1013         printf("%c", *p);
1014     }
1015     printf("\n");
1016 }
1017
1018 /* structure assignment tests */
1019 struct structa1 {
1020     int f1;
1021     char f2;
1022 };
1023
1024 struct structa1 ssta1;
1025
1026 void struct_assign_test1(struct structa1 s1, int t)
1027 {
1028     printf("%d %d %d\n", s1.f1, s1.f2, t);
1029 }
1030
1031 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1032 {
1033     s1.f1 += t;
1034     s1.f2 -= t;
1035     return s1;
1036 }
1037
1038 void struct_assign_test(void)
1039 {
1040     struct structa1 lsta1, lsta2;
1041
1042 #if 0
1043     printf("struct_assign_test:\n");
1044
1045     lsta1.f1 = 1;
1046     lsta1.f2 = 2;
1047     printf("%d %d\n", lsta1.f1, lsta1.f2);
1048     lsta2 = lsta1;
1049     printf("%d %d\n", lsta2.f1, lsta2.f2);
1050 #else
1051     lsta2.f1 = 1;
1052     lsta2.f2 = 2;
1053 #endif
1054     struct_assign_test1(lsta2, 3);
1055
1056     printf("before call: %d %d\n", lsta2.f1, lsta2.f2);
1057     lsta2 = struct_assign_test2(lsta2, 4);
1058     printf("after call: %d %d\n", lsta2.f1, lsta2.f2);
1059 }
1060
1061 /* casts to short/char */
1062
1063 void cast1(char a, short b, unsigned char c, unsigned short d)
1064 {
1065     printf("%d %d %d %d\n", a, b, c, d);
1066 }
1067
1068 char bcast;
1069 short scast;
1070
1071 void cast_test()
1072 {
1073     int a;
1074     char c;
1075     char tab[10];
1076     unsigned b,d;
1077     short s;
1078
1079     printf("cast_test:\n");
1080     a = 0xfffff;
1081     cast1(a, a, a, a);
1082     a = 0xffffe;
1083     printf("%d %d %d %d\n",
1084            (char)(a + 1),
1085            (short)(a + 1),
1086            (unsigned char)(a + 1),
1087            (unsigned short)(a + 1));
1088     printf("%d %d %d %d\n",
1089            (char)0xfffff,
1090            (short)0xfffff,
1091            (unsigned char)0xfffff,
1092            (unsigned short)0xfffff);
1093
1094     a = (bcast = 128) + 1;
1095     printf("%d\n", a);
1096     a = (scast = 65536) + 1;
1097     printf("%d\n", a);
1098
1099     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1100
1101     /* test cast from unsigned to signed short to int */
1102     b = 0xf000;
1103     d = (short)b;
1104     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1105     b = 0xf0f0;
1106     d = (char)b;
1107     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1108
1109     /* test implicit int casting for array accesses */
1110     c = 0;
1111     tab[1] = 2;
1112     tab[c] = 1;
1113     printf("%d %d\n", tab[0], tab[1]);
1114
1115     /* test implicit casting on some operators */
1116     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1117     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1118     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1119 }
1120
1121 /* initializers tests */
1122 struct structinit1 {
1123     int f1;
1124     char f2;
1125     short f3;
1126     int farray[3];
1127 };
1128
1129 int sinit1 = 2;
1130 int sinit2 = { 3 };
1131 int sinit3[3] = { 1, 2, {{3}}, };
1132 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1133 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1134 int sinit6[] = { 1, 2, 3 };
1135 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1136 char sinit8[] = "hello" "trala";
1137
1138 struct structinit1 sinit9 = { 1, 2, 3 };
1139 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1140 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1141 #ifdef ALL_ISOC99
1142                                .farray[0] = 10,
1143                                .farray[1] = 11,
1144                                .farray[2] = 12,
1145 #endif
1146 };
1147
1148 char *sinit12 = "hello world";
1149 char *sinit13[] = {
1150     "test1",
1151     "test2",
1152     "test3",
1153 };
1154 char sinit14[10] = { "abc" };
1155 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1156
1157 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1158
1159 struct bar {
1160         char *s;
1161         int len;
1162 } sinit17[] = {
1163         "a1", 4,
1164         "a2", 1
1165 };
1166
1167 int sinit18[10] = {
1168     [2 ... 5] = 20,
1169     2,
1170     [8] = 10,
1171 };
1172
1173 void init_test(void)
1174 {
1175     int linit1 = 2;
1176     int linit2 = { 3 };
1177     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1178     int linit6[] = { 1, 2, 3 };
1179     int i, j;
1180     char linit8[] = "hello" "trala";
1181     int linit12[10] = { 1, 2 };
1182     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1183     char linit14[10] = "abc";
1184     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1185     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1186     int linit17 = sizeof(linit17);
1187
1188     printf("init_test:\n");
1189
1190     printf("sinit1=%d\n", sinit1);
1191     printf("sinit2=%d\n", sinit2);
1192     printf("sinit3=%d %d %d %d\n",
1193            sizeof(sinit3),
1194            sinit3[0],
1195            sinit3[1],
1196            sinit3[2]
1197            );
1198     printf("sinit6=%d\n", sizeof(sinit6));
1199     printf("sinit7=%d %d %d %d\n",
1200            sizeof(sinit7),
1201            sinit7[0],
1202            sinit7[1],
1203            sinit7[2]
1204            );
1205     printf("sinit8=%s\n", sinit8);
1206     printf("sinit9=%d %d %d\n",
1207            sinit9.f1,
1208            sinit9.f2,
1209            sinit9.f3
1210            );
1211     printf("sinit10=%d %d %d\n",
1212            sinit10.f1,
1213            sinit10.f2,
1214            sinit10.f3
1215            );
1216     printf("sinit11=%d %d %d %d %d %d\n",
1217            sinit11.f1,
1218            sinit11.f2,
1219            sinit11.f3,
1220            sinit11.farray[0],
1221            sinit11.farray[1],
1222            sinit11.farray[2]
1223            );
1224
1225     for(i=0;i<3;i++)
1226         for(j=0;j<2;j++)
1227             printf("[%d][%d] = %d %d %d\n",
1228                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1229     printf("linit1=%d\n", linit1);
1230     printf("linit2=%d\n", linit2);
1231     printf("linit6=%d\n", sizeof(linit6));
1232     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1233
1234     printf("sinit12=%s\n", sinit12);
1235     printf("sinit13=%d %s %s %s\n",
1236            sizeof(sinit13),
1237            sinit13[0],
1238            sinit13[1],
1239            sinit13[2]);
1240     printf("sinit14=%s\n", sinit14);
1241
1242     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1243     printf("\n");
1244     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1245     printf("\n");
1246     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1247     printf("\n");
1248     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1249     printf("\n");
1250     printf("%d %d %d %d\n",
1251            linit16.a1,
1252            linit16.a2,
1253            linit16.a3,
1254            linit16.a4);
1255     /* test that initialisation is done after variable declare */
1256     printf("linit17=%d\n", linit17);
1257     printf("sinit15=%d\n", sinit15[0]);
1258     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1259     printf("sinit17=%s %d %s %d\n",
1260            sinit17[0].s, sinit17[0].len,
1261            sinit17[1].s, sinit17[1].len);
1262     for(i=0;i<10;i++)
1263         printf("%x ", sinit18[i]);
1264     printf("\n");
1265 }
1266
1267
1268 void switch_test()
1269 {
1270     int i;
1271
1272     for(i=0;i<15;i++) {
1273         switch(i) {
1274         case 0:
1275         case 1:
1276             printf("a");
1277             break;
1278         default:
1279             printf("%d", i);
1280             break;
1281         case 8 ... 12:
1282             printf("c");
1283             break;
1284         case 3:
1285             printf("b");
1286             break;
1287         }
1288     }
1289     printf("\n");
1290 }
1291
1292 /* ISOC99 _Bool type */
1293 void c99_bool_test(void)
1294 {
1295 #ifdef BOOL_ISOC99
1296     int a;
1297     _Bool b;
1298
1299     printf("bool_test:\n");
1300     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1301     a = 3;
1302     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1303     b = 3;
1304     printf("b = %d\n", b);
1305     b++;
1306     printf("b = %d\n", b);
1307 #endif
1308 }
1309
1310 void bitfield_test(void)
1311 {
1312     int a;
1313     struct sbf1 {
1314         int f1 : 3;
1315         int : 2;
1316         int f2 : 1;
1317         int : 0;
1318         int f3 : 5;
1319         int f4 : 7;
1320         unsigned int f5 : 7;
1321     } st1;
1322     printf("bitfield_test:");
1323     printf("sizeof(st1) = %d\n", sizeof(st1));
1324
1325     st1.f1 = 3;
1326     st1.f2 = 1;
1327     st1.f3 = 15;
1328     a = 120;
1329     st1.f4 = a;
1330     st1.f5 = a;
1331     st1.f5++;
1332     printf("%d %d %d %d %d\n",
1333            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1334
1335     st1.f1 = 7;
1336     if (st1.f1 == -1)
1337         printf("st1.f1 == -1\n");
1338     else
1339         printf("st1.f1 != -1\n");
1340     if (st1.f2 == -1)
1341         printf("st1.f2 == -1\n");
1342     else
1343         printf("st1.f2 != -1\n");
1344 }
1345
1346 #define FTEST(prefix, type, fmt)\
1347 void prefix ## cmp(type a, type b)\
1348 {\
1349     printf("%d %d %d %d %d %d\n",\
1350            a == b,\
1351            a != b,\
1352            a < b,\
1353            a > b,\
1354            a >= b,\
1355            a <= b);\
1356     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1357            a,\
1358            b,\
1359            a + b,\
1360            a - b,\
1361            a * b,\
1362            a / b,\
1363            -a);\
1364     printf(fmt "\n", ++a);\
1365     printf(fmt "\n", a++);\
1366     printf(fmt "\n", a);\
1367 }\
1368 void prefix ## fcast(type a)\
1369 {\
1370     float fa;\
1371     double da;\
1372     long double la;\
1373     int ia;\
1374     unsigned int ua;\
1375     type b;\
1376     fa = a;\
1377     da = a;\
1378     la = a;\
1379     printf("ftof: %f %f %Lf\n", fa, da, la);\
1380     ia = (int)a;\
1381     ua = (unsigned int)a;\
1382     printf("ftoi: %d %u\n", ia, ua);\
1383     ia = -1234;\
1384     ua = 0x81234500;\
1385     b = ia;\
1386     printf("itof: " fmt "\n", b);\
1387     b = ua;\
1388     printf("utof: " fmt "\n", b);\
1389 }\
1390 \
1391 void prefix ## test(void)\
1392 {\
1393     printf("testing '%s'\n", #type);\
1394     prefix ## cmp(1, 2.5);\
1395     prefix ## cmp(2, 1.5);\
1396     prefix ## cmp(1, 1);\
1397     prefix ## fcast(234.6);\
1398     prefix ## fcast(-2334.6);\
1399 }
1400
1401 FTEST(f, float, "%f")
1402 FTEST(d, double, "%f")
1403 FTEST(ld, long double, "%Lf")
1404
1405 double ftab1[3] = { 1.2, 3.4, -5.6 };
1406
1407
1408 void float_test(void)
1409 {
1410     float fa, fb;
1411     double da, db;
1412     int a;
1413     unsigned int b;
1414
1415     printf("float_test:\n");
1416     printf("sizeof(float) = %d\n", sizeof(float));
1417     printf("sizeof(double) = %d\n", sizeof(double));
1418     printf("sizeof(long double) = %d\n", sizeof(long double));
1419     ftest();
1420     dtest();
1421     ldtest();
1422     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1423     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1424     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1425     da = 123;
1426     printf("da=%f\n", da);
1427     fa = 123;
1428     printf("fa=%f\n", fa);
1429     a = 4000000000;
1430     da = a;
1431     printf("da = %f\n", da);
1432     b = 4000000000;
1433     db = b;
1434     printf("db = %f\n", db);
1435 }
1436
1437 int fib(int n)
1438 {
1439     if (n <= 2)
1440         return 1;
1441     else
1442         return fib(n-1) + fib(n-2);
1443 }
1444
1445 void funcptr_test()
1446 {
1447     void (*func)(int);
1448     int a;
1449     struct {
1450         int dummy;
1451         void (*func)(int);
1452     } st1;
1453
1454     printf("funcptr:\n");
1455     func = &num;
1456     (*func)(12345);
1457     func = num;
1458     a = 1;
1459     a = 1;
1460     func(12345);
1461     /* more complicated pointer computation */
1462     st1.func = num;
1463     st1.func(12346);
1464     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1465     printf("sizeof2 = %d\n", sizeof funcptr_test);
1466     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1467     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1468 }
1469
1470 void lloptest(long long a, long long b)
1471 {
1472     unsigned long long ua, ub;
1473
1474     ua = a;
1475     ub = b;
1476     /* arith */
1477     printf("arith: %Ld %Ld %Ld\n",
1478            a + b,
1479            a - b,
1480            a * b);
1481
1482     if (b != 0) {
1483         printf("arith1: %Ld %Ld\n",
1484            a / b,
1485            a % b);
1486     }
1487
1488     /* binary */
1489     printf("bin: %Ld %Ld %Ld\n",
1490            a & b,
1491            a | b,
1492            a ^ b);
1493
1494     /* tests */
1495     printf("test: %d %d %d %d %d %d\n",
1496            a == b,
1497            a != b,
1498            a < b,
1499            a > b,
1500            a >= b,
1501            a <= b);
1502
1503     printf("utest: %d %d %d %d %d %d\n",
1504            ua == ub,
1505            ua != ub,
1506            ua < ub,
1507            ua > ub,
1508            ua >= ub,
1509            ua <= ub);
1510
1511     /* arith2 */
1512     a++;
1513     b++;
1514     printf("arith2: %Ld %Ld\n", a, b);
1515     printf("arith2: %Ld %Ld\n", a++, b++);
1516     printf("arith2: %Ld %Ld\n", --a, --b);
1517     printf("arith2: %Ld %Ld\n", a, b);
1518 }
1519
1520 void llshift(long long a, int b)
1521 {
1522     printf("shift: %Ld %Ld %Ld\n",
1523            (unsigned long long)a >> b,
1524            a >> b,
1525            a << b);
1526     printf("shiftc: %Ld %Ld %Ld\n",
1527            (unsigned long long)a >> 3,
1528            a >> 3,
1529            a << 3);
1530     printf("shiftc: %Ld %Ld %Ld\n",
1531            (unsigned long long)a >> 35,
1532            a >> 35,
1533            a << 35);
1534 }
1535
1536 void llfloat(void)
1537 {
1538     float fa;
1539     double da;
1540     long double lda;
1541     long long la, lb, lc;
1542     unsigned long long ula, ulb, ulc;
1543     la = 0x12345678;
1544     ula = 0x72345678;
1545     la = (la << 20) | 0x12345;
1546     ula = ula << 33;
1547     printf("la=%Ld ula=%Lu\n", la, ula);
1548
1549     fa = la;
1550     da = la;
1551     lda = la;
1552     printf("lltof: %f %f %Lf\n", fa, da, lda);
1553
1554     la = fa;
1555     lb = da;
1556     lc = lda;
1557     printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
1558
1559     fa = ula;
1560     da = ula;
1561     lda = ula;
1562     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1563
1564     ula = fa;
1565     ulb = da;
1566     ulc = lda;
1567     printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
1568 }
1569
1570 long long llfunc1(int a)
1571 {
1572     return a * 2;
1573 }
1574
1575 struct S {
1576     int id;
1577     char item;
1578 };
1579
1580 long long int value(struct S *v)
1581 {
1582     return ((long long int)v->item);
1583 }
1584
1585 void longlong_test(void)
1586 {
1587     long long a, b, c;
1588     int ia;
1589     unsigned int ua;
1590     printf("longlong_test:\n");
1591     printf("sizeof(long long) = %d\n", sizeof(long long));
1592     ia = -1;
1593     ua = -2;
1594     a = ia;
1595     b = ua;
1596     printf("%Ld %Ld\n", a, b);
1597     printf("%Ld %Ld %Ld %Lx\n",
1598            (long long)1,
1599            (long long)-2,
1600            1LL,
1601            0x1234567812345679);
1602     a = llfunc1(-3);
1603     printf("%Ld\n", a);
1604
1605     lloptest(1000, 23);
1606     lloptest(0xff, 0x1234);
1607     b = 0x72345678 << 10;
1608     lloptest(-3, b);
1609     llshift(0x123, 5);
1610     llshift(-23, 5);
1611     b = 0x72345678LL << 10;
1612     llshift(b, 47);
1613
1614     llfloat();
1615 #if 1
1616     b = 0x12345678;
1617     a = -1;
1618     c = a + b;
1619     printf("%Lx\n", c);
1620 #endif
1621
1622     /* long long reg spill test */
1623     {
1624           struct S a;
1625
1626           a.item = 3;
1627           printf("%lld\n", value(&a));
1628     }
1629     lloptest(0x80000000, 0);
1630
1631     /* another long long spill test */
1632     {
1633         long long *p, v;
1634         v = 1;
1635         p = &v;
1636         p[0]++;
1637         printf("%lld\n", *p);
1638     }
1639 }
1640
1641 void vprintf1(const char *fmt, ...)
1642 {
1643     va_list ap;
1644     const char *p;
1645     int c, i;
1646     double d;
1647     long long ll;
1648
1649     va_start(ap, fmt);
1650
1651     p = fmt;
1652     for(;;) {
1653         c = *p;
1654         if (c == '\0')
1655             break;
1656         p++;
1657         if (c == '%') {
1658             c = *p;
1659             switch(c) {
1660             case '\0':
1661                 goto the_end;
1662             case 'd':
1663                 i = va_arg(ap, int);
1664                 printf("%d", i);
1665                 break;
1666             case 'f':
1667                 d = va_arg(ap, double);
1668                 printf("%f", d);
1669                 break;
1670             case 'l':
1671                 ll = va_arg(ap, long long);
1672                 printf("%Ld", ll);
1673                 break;
1674             }
1675             p++;
1676         } else {
1677             putchar(c);
1678         }
1679     }
1680  the_end:
1681     va_end(ap);
1682 }
1683
1684
1685 void stdarg_test(void)
1686 {
1687     vprintf1("%d %d %d\n", 1, 2, 3);
1688     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
1689     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
1690 }
1691
1692 void whitespace_test(void)
1693 {
1694     char *str;
1695
1696 \f\v
#if 1
1697     pri\
1698 ntf("whitspace:\n");\f\v
1699 #endif
1700     pf("N=%d\n", 2);
1701
1702 #ifdef CORRECT_CR_HANDLING
1703     pri\
1704 ntf("aaa=%d\n", 3);
1705 #endif
1706
1707     pri\
1708 \
1709 ntf("min=%d\n", 4);
1710
1711 #ifdef ACCEPT_CR_IN_STRINGS
1712     printf("len1=%d\n", strlen("
1713 "));
1714 #ifdef CORRECT_CR_HANDLING
1715     str = "
1716 ";
1717     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
1718 #endif
1719     printf("len1=%d\n", strlen("
a
1720 "));
1721 #endif /* ACCEPT_CR_IN_STRINGS */
1722 }
1723
1724 int reltab[3] = { 1, 2, 3 };
1725
1726 int *rel1 = &reltab[1];
1727 int *rel2 = &reltab[2];
1728
1729 void relocation_test(void)
1730 {
1731     printf("*rel1=%d\n", *rel1);
1732     printf("*rel2=%d\n", *rel2);
1733 }
1734
1735 void old_style_f(a,b,c)
1736      int a, b;
1737      double c;
1738 {
1739     printf("a=%d b=%d b=%f\n", a, b, c);
1740 }
1741
1742 void decl_func1(int cmpfn())
1743 {
1744     printf("cmpfn=%lx\n", (long)cmpfn);
1745 }
1746
1747 void decl_func2(cmpfn)
1748 int cmpfn();
1749 {
1750     printf("cmpfn=%lx\n", (long)cmpfn);
1751 }
1752
1753 void old_style_function(void)
1754 {
1755     old_style_f((void *)1, 2, 3.0);
1756     decl_func1(NULL);
1757     decl_func2(NULL);
1758 }
1759
1760 void sizeof_test(void)
1761 {
1762     int a;
1763     int **ptr;
1764
1765     printf("sizeof(int) = %d\n", sizeof(int));
1766     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
1767     printf("sizeof(short) = %d\n", sizeof(short));
1768     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
1769     printf("sizeof(char) = %d\n", sizeof(char));
1770     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
1771     printf("sizeof(func) = %d\n", sizeof sizeof_test());
1772     a = 1;
1773     printf("sizeof(a++) = %d\n", sizeof a++);
1774     printf("a=%d\n", a);
1775     ptr = NULL;
1776     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
1777
1778     /* some alignof tests */
1779     printf("__alignof__(int) = %d\n", __alignof__(int));
1780     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
1781     printf("__alignof__(short) = %d\n", __alignof__(short));
1782     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
1783     printf("__alignof__(char) = %d\n", __alignof__(char));
1784     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
1785     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
1786 }
1787
1788 void typeof_test(void)
1789 {
1790     double a;
1791     typeof(a) b;
1792     typeof(float) c;
1793
1794     a = 1.5;
1795     b = 2.5;
1796     c = 3.5;
1797     printf("a=%f b=%f c=%f\n", a, b, c);
1798 }
1799
1800 void statement_expr_test(void)
1801 {
1802     int a, i;
1803
1804     a = 0;
1805     for(i=0;i<10;i++) {
1806         a += 1 +
1807             ( { int b, j;
1808                 b = 0;
1809                 for(j=0;j<5;j++)
1810                     b += j; b;
1811             } );
1812     }
1813     printf("a=%d\n", a);
1814
1815 }
1816
1817 void local_label_test(void)
1818 {
1819     int a;
1820     goto l1;
1821  l2:
1822     a = 1 + ({
1823         __label__ l1, l2, l3, l4;
1824         goto l1;
1825     l4:
1826         printf("aa1\n");
1827         goto l3;
1828     l2:
1829         printf("aa3\n");
1830         goto l4;
1831     l1:
1832         printf("aa2\n");
1833         goto l2;
1834     l3:;
1835         1;
1836     });
1837     printf("a=%d\n", a);
1838     return;
1839  l4:
1840     printf("bb1\n");
1841     goto l2;
1842  l1:
1843     printf("bb2\n");
1844     goto l4;
1845 }
1846
1847 /* inline assembler test */
1848 #ifdef __i386__
1849
1850 /* from linux kernel */
1851 static char * strncat1(char * dest,const char * src,size_t count)
1852 {
1853 int d0, d1, d2, d3;
1854 __asm__ __volatile__(
1855         "repne\n\t"
1856         "scasb\n\t"
1857         "decl %1\n\t"
1858         "movl %8,%3\n"
1859         "1:\tdecl %3\n\t"
1860         "js 2f\n\t"
1861         "lodsb\n\t"
1862         "stosb\n\t"
1863         "testb %%al,%%al\n\t"
1864         "jne 1b\n"
1865         "2:\txorl %2,%2\n\t"
1866         "stosb"
1867         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
1868         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
1869         : "memory");
1870 return dest;
1871 }
1872
1873 static inline void * memcpy1(void * to, const void * from, size_t n)
1874 {
1875 int d0, d1, d2;
1876 __asm__ __volatile__(
1877         "rep ; movsl\n\t"
1878         "testb $2,%b4\n\t"
1879         "je 1f\n\t"
1880         "movsw\n"
1881         "1:\ttestb $1,%b4\n\t"
1882         "je 2f\n\t"
1883         "movsb\n"
1884         "2:"
1885         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
1886         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
1887         : "memory");
1888 return (to);
1889 }
1890
1891 static __inline__ void sigaddset1(unsigned int *set, int _sig)
1892 {
1893         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
1894 }
1895
1896 static __inline__ void sigdelset1(unsigned int *set, int _sig)
1897 {
1898         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
1899 }
1900
1901 static __inline__ __const__ unsigned int swab32(unsigned int x)
1902 {
1903         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
1904                 "rorl $16,%0\n\t"       /* swap words           */
1905                 "xchgb %b0,%h0"         /* swap higher bytes    */
1906                 :"=q" (x)
1907                 : "0" (x));
1908         return x;
1909 }
1910
1911 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
1912 {
1913     unsigned long long res;
1914     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
1915     return res;
1916 }
1917
1918 static __inline__ unsigned long long inc64(unsigned long long a)
1919 {
1920     unsigned long long res;
1921     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
1922     return res;
1923 }
1924
1925 unsigned int set;
1926
1927 void asm_test(void)
1928 {
1929     char buf[128];
1930     unsigned int val;
1931
1932     printf("inline asm:\n");
1933     /* test the no operand case */
1934     asm volatile ("xorl %eax, %eax");
1935
1936     memcpy1(buf, "hello", 6);
1937     strncat1(buf, " worldXXXXX", 3);
1938     printf("%s\n", buf);
1939
1940     /* 'A' constraint test */
1941     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
1942     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
1943
1944     set = 0xff;
1945     sigdelset1(&set, 2);
1946     sigaddset1(&set, 16);
1947     /* NOTE: we test here if C labels are correctly restored after the
1948        asm statement */
1949     goto label1;
1950  label2:
1951     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
1952     printf("set=0x%x\n", set);
1953     val = 0x01020304;
1954     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
1955     return;
1956  label1:
1957     goto label2;
1958 }
1959
1960 #else
1961
1962 void asm_test(void)
1963 {
1964 }
1965
1966 #endif
1967
1968 #define COMPAT_TYPE(type1, type2) \
1969 {\
1970     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
1971            __builtin_types_compatible_p (type1, type2));\
1972 }
1973
1974 int constant_p_var;
1975
1976 void builtin_test(void)
1977 {
1978 #if GCC_MAJOR >= 3
1979     COMPAT_TYPE(int, int);
1980     COMPAT_TYPE(int, unsigned int);
1981     COMPAT_TYPE(int, char);
1982     COMPAT_TYPE(int, const int);
1983     COMPAT_TYPE(int, volatile int);
1984     COMPAT_TYPE(int *, int *);
1985     COMPAT_TYPE(int *, void *);
1986     COMPAT_TYPE(int *, const int *);
1987     COMPAT_TYPE(char *, unsigned char *);
1988 /* space is needed because tcc preprocessor introduces a space between each token */
1989     COMPAT_TYPE(char * *, void *);
1990 #endif
1991     printf("res = %d\n", __builtin_constant_p(1));
1992     printf("res = %d\n", __builtin_constant_p(1 + 2));
1993     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
1994     printf("res = %d\n", __builtin_constant_p(constant_p_var));
1995 }
1996
1997
1998 void const_func(const int a)
1999 {
2000 }
2001
2002 void const_warn_test(void)
2003 {
2004     const_func(1);
2005 }