tests/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 recursive_macro_test();
  49 void scope_test();
  50 void forward_test();
  51 void funcptr_test();
  52 void loop_test();
  53 void switch_test();
  54 void goto_test();
  55 void enum_test();
  56 void typedef_test();
  57 void struct_test();
  58 void array_test();
  59 void expr_ptr_test();
  60 void bool_test();
  61 void expr2_test();
  62 void constant_expr_test();
  63 void expr_cmp_test();
  64 void char_short_test();
  65 void init_test(void);
  66 void compound_literal_test(void);
  67 int kr_test();
  68 void struct_assign_test(void);
  69 void cast_test(void);
  70 void bitfield_test(void);
  71 void c99_bool_test(void);
  72 void float_test(void);
  73 void longlong_test(void);
  74 void manyarg_test(void);
  75 void stdarg_test(void);
  76 void whitespace_test(void);
  77 void relocation_test(void);
  78 void old_style_function(void);
  79 void alloca_test(void);
  80 void c99_vla_test(int size1, int size2);
  81 void sizeof_test(void);
  82 void typeof_test(void);
  83 void local_label_test(void);
  84 void statement_expr_test(void);
  85 void asm_test(void);
  86 void builtin_test(void);
  87 void weak_test(void);
  88
  89 int fib(int n);
  90 void num(int n);
  91 void forward_ref(void);
  92 int isid(int c);
  93
  94 #define A 2
  95 #define N 1234 + A
  96 #define pf printf
  97 #define M1(a, b)  (a) + (b)
  98
  99 #define str\
 100 (s) # s
 101 #define glue(a, b) a ## b
 102 #define xglue(a, b) glue(a, b)
 103 #define HIGHLOW "hello"
 104 #define LOW LOW ", world"
 105
 106 static int onetwothree = 123;
 107 #define onetwothree4 onetwothree
 108 #define onetwothree xglue(onetwothree,4)
 109
 110 #define min(a, b) ((a) < (b) ? (a) : (b))
 111
 112 #ifdef C99_MACROS
 113 #define dprintf(level,...) printf(__VA_ARGS__)
 114 #endif
 115
 116 /* gcc vararg macros */
 117 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 118
 119 #define MACRO_NOARGS()
 120
 121 #define AAA 3
 122 #undef AAA
 123 #define AAA 4
 124
 125 #if 1
 126 #define B3 1
 127 #elif 1
 128 #define B3 2
 129 #elif 0
 130 #define B3 3
 131 #else
 132 #define B3 4
 133 #endif
 134
 135 #define __INT64_C(c)    c ## LL
 136 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 137
 138 int qq(int x)
 139 {
 140     return x + 40;
 141 }
 142 #define qq(x) x
 143
 144 #define spin_lock(lock) do { } while (0)
 145 #define wq_spin_lock spin_lock
 146 #define TEST2() wq_spin_lock(a)
 147
 148 void macro_test(void)
 149 {
 150     printf("macro:\n");\f\v
 151     pf("N=%d\n", N);
 152     printf("aaa=%d\n", AAA);
 153
 154     printf("min=%d\n", min(1, min(2, -1)));
 155
 156     printf("s1=%s\n", glue(HIGH, LOW));
 157     printf("s2=%s\n", xglue(HIGH, LOW));
 158     printf("s3=%s\n", str("c"));
 159     printf("s4=%s\n", str(a1));
 160     printf("B3=%d\n", B3);
 161
 162     printf("onetwothree=%d\n", onetwothree);
 163
 164 #ifdef A
 165     printf("A defined\n");
 166 #endif
 167 #ifdef B
 168     printf("B defined\n");
 169 #endif
 170 #ifdef A
 171     printf("A defined\n");
 172 #else
 173     printf("A not defined\n");
 174 #endif
 175 #ifdef B
 176     printf("B defined\n");
 177 #else
 178     printf("B not defined\n");
 179 #endif
 180
 181 #ifdef A
 182     printf("A defined\n");
 183 #ifdef B
 184     printf("B1 defined\n");
 185 #else
 186     printf("B1 not defined\n");
 187 #endif
 188 #else
 189     printf("A not defined\n");
 190 #ifdef B
 191     printf("B2 defined\n");
 192 #else
 193     printf("B2 not defined\n");
 194 #endif
 195 #endif
 196
 197 #if 1+1
 198     printf("test true1\n");
 199 #endif
 200 #if 0
 201     printf("test true2\n");
 202 #endif
 203 #if 1-1
 204     printf("test true3\n");
 205 #endif
 206 #if defined(A)
 207     printf("test trueA\n");
 208 #endif
 209 #if defined(B)
 210     printf("test trueB\n");
 211 #endif
 212
 213 #if 0
 214     printf("test 0\n");
 215 #elif 0
 216     printf("test 1\n");
 217 #elif 2
 218     printf("test 2\n");
 219 #else
 220     printf("test 3\n");
 221 #endif
 222
 223     MACRO_NOARGS();
 224
 225 #ifdef __LINE__
 226     printf("__LINE__ defined\n");
 227 #endif
 228
 229     printf("__LINE__=%d __FILE__=%s\n",
 230            __LINE__, __FILE__);
 231 #line 200
 232     printf("__LINE__=%d __FILE__=%s\n",
 233            __LINE__, __FILE__);
 234 #line 203 "test"
 235     printf("__LINE__=%d __FILE__=%s\n",
 236            __LINE__, __FILE__);
 237 #line 227 "tcctest.c"
 238
 239     /* not strictly preprocessor, but we test it there */
 240 #ifdef C99_MACROS
 241     printf("__func__ = %s\n", __func__);
 242     dprintf(1, "vaarg=%d\n", 1);
 243 #endif
 244     dprintf1(1, "vaarg1\n");
 245     dprintf1(1, "vaarg1=%d\n", 2);
 246     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 247
 248     /* gcc extension */
 249     printf("func='%s'\n", __FUNCTION__);
 250
 251     /* complicated macros in glibc */
 252     printf("INT64_MIN=%Ld\n", INT64_MIN);
 253     {
 254         int a;
 255         a = 1;
 256         glue(a+, +);
 257         printf("a=%d\n", a);
 258         glue(a <, <= 2);
 259         printf("a=%d\n", a);
 260     }
 261
 262     /* macro function with argument outside the macro string */
 263 #define MF_s MF_hello
 264 #define MF_hello(msg) printf("%s\n",msg)
 265
 266 #define MF_t printf("tralala\n"); MF_hello
 267
 268     MF_s("hi");
 269     MF_t("hi");
 270
 271     /* test macro substituion inside args (should not eat stream) */
 272     printf("qq=%d\n", qq(qq)(2));
 273
 274     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 275        null argument without a space. gcc 3.2 fixes that. */
 276
 277 #define qq1(x) 1
 278     printf("qq1=%d\n", qq1( ));
 279
 280     /* comment with stray handling *\
 281 /
 282        /* this is a valid *\/ comment */
 283        /* this is a valid comment *\*/
 284     //  this is a valid\
 285 comment
 286
 287     /* test function macro substitution when the function name is
 288        substituted */
 289     TEST2();
 290 }
 291
 292
 293 static void print_num(char *fn, int line, int num) {
 294     printf("fn %s, line %d, num %d\n", fn, line, num);
 295 }
 296
 297 void recursive_macro_test(void)
 298 {
 299
 300 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 301 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 302 #define STB_WEAK        2               /* Weak symbol */
 303 #define ELFW(type) ELF##32##_##type
 304     printf("%d\n", ELFW(ST_INFO)(STB_WEAK, ELFW(ST_TYPE)(123)));
 305
 306 #define WRAP(x) x
 307
 308 #define print_num(x) print_num(__FILE__,__LINE__,x)
 309     print_num(123);
 310     WRAP(print_num(123));
 311     WRAP(WRAP(print_num(123)));
 312
 313 static struct recursive_macro { int rm_field; } G;
 314 #define rm_field (G.rm_field)
 315     printf("rm_field = %d\n", rm_field);
 316     printf("rm_field = %d\n", WRAP(rm_field));
 317     WRAP((printf("rm_field = %d %d\n", rm_field, WRAP(rm_field))));
 318 }
 319
 320 int op(a,b)
 321 {
 322     return a / b;
 323 }
 324
 325 int ret(a)
 326 {
 327     if (a == 2)
 328         return 1;
 329     if (a == 3)
 330         return 2;
 331     return 0;
 332 }
 333
 334 void ps(const char *s)
 335 {
 336     int c;
 337     while (1) {
 338         c = *s;
 339         if (c == 0)
 340             break;
 341         printf("%c", c);
 342         s++;
 343     }
 344 }
 345
 346 const char foo1_string[] = "\
 347 bar\n\
 348 test\14\
 349 1";
 350
 351 void string_test()
 352 {
 353     unsigned int b;
 354     printf("string:\n");
 355     printf("\141\1423\143\n");/* dezdez test */
 356     printf("\x41\x42\x43\x3a\n");
 357     printf("c=%c\n", 'r');
 358     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 359     printf("foo1_string='%s'\n", foo1_string);
 360 #if 0
 361     printf("wstring=%S\n", L"abc");
 362     printf("wstring=%S\n", L"abc" L"def" "ghi");
 363     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 364     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 365 #endif
 366     ps("test\n");
 367     b = 32;
 368     while ((b = b + 1) < 96) {
 369         printf("%c", b);
 370     }
 371     printf("\n");
 372     printf("fib=%d\n", fib(33));
 373     b = 262144;
 374     while (b != 0x80000000) {
 375         num(b);
 376         b = b * 2;
 377     }
 378 }
 379
 380 void loop_test()
 381 {
 382     int i;
 383     i = 0;
 384     while (i < 10)
 385         printf("%d", i++);
 386     printf("\n");
 387     for(i = 0; i < 10;i++)
 388         printf("%d", i);
 389     printf("\n");
 390     i = 0;
 391     do {
 392         printf("%d", i++);
 393     } while (i < 10);
 394     printf("\n");
 395
 396     char count = 123;
 397     /* c99 for loop init test */
 398     for (size_t count = 1; count < 3; count++)
 399         printf("count=%d\n", count);
 400     printf("count = %d\n", count);
 401
 402     /* break/continue tests */
 403     i = 0;
 404     while (1) {
 405         if (i == 6)
 406             break;
 407         i++;
 408         if (i == 3)
 409             continue;
 410         printf("%d", i);
 411     }
 412     printf("\n");
 413
 414     /* break/continue tests */
 415     i = 0;
 416     do {
 417         if (i == 6)
 418             break;
 419         i++;
 420         if (i == 3)
 421             continue;
 422         printf("%d", i);
 423     } while(1);
 424     printf("\n");
 425
 426     for(i = 0;i < 10;i++) {
 427         if (i == 3)
 428             continue;
 429         printf("%d", i);
 430     }
 431     printf("\n");
 432 }
 433
 434
 435 void goto_test()
 436 {
 437     int i;
 438     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 439
 440     printf("goto:\n");
 441     i = 0;
 442  s_loop:
 443     if (i >= 10)
 444         goto s_end;
 445     printf("%d", i);
 446     i++;
 447     goto s_loop;
 448  s_end:
 449     printf("\n");
 450
 451     /* we also test computed gotos (GCC extension) */
 452     for(i=0;i<3;i++) {
 453         goto *label_table[i];
 454     label1:
 455         printf("label1\n");
 456         goto next;
 457     label2:
 458         printf("label2\n");
 459         goto next;
 460     label3:
 461         printf("label3\n");
 462     next: ;
 463     }
 464 }
 465
 466 enum {
 467     E0,
 468     E1 = 2,
 469     E2 = 4,
 470     E3,
 471     E4,
 472 };
 473
 474 enum test {
 475     E5 = 1000,
 476 };
 477
 478 void enum_test()
 479 {
 480     enum test b1;
 481     printf("enum:\n%d %d %d %d %d %d\n",
 482            E0, E1, E2, E3, E4, E5);
 483     b1 = 1;
 484     printf("b1=%d\n", b1);
 485 }
 486
 487 typedef int *my_ptr;
 488
 489 typedef int mytype1;
 490 typedef int mytype2;
 491
 492 void typedef_test()
 493 {
 494     my_ptr a;
 495     mytype1 mytype2;
 496     int b;
 497
 498     a = &b;
 499     *a = 1234;
 500     printf("typedef:\n");
 501     printf("a=%d\n", *a);
 502     mytype2 = 2;
 503     printf("mytype2=%d\n", mytype2);
 504 }
 505
 506 void forward_test()
 507 {
 508     printf("forward:\n");
 509     forward_ref();
 510     forward_ref();
 511 }
 512
 513
 514 void forward_ref(void)
 515 {
 516     printf("forward ok\n");
 517 }
 518
 519 typedef struct struct1 {
 520     int f1;
 521     int f2, f3;
 522     union union1 {
 523         int v1;
 524         int v2;
 525     } u;
 526     char str[3];
 527 } struct1;
 528
 529 struct struct2 {
 530     int a;
 531     char b;
 532 };
 533
 534 union union2 {
 535     int w1;
 536     int w2;
 537 };
 538
 539 struct struct1 st1, st2;
 540
 541 int main(int argc, char **argv)
 542 {
 543     string_test();
 544     expr_test();
 545     macro_test();
 546     recursive_macro_test();
 547     scope_test();
 548     forward_test();
 549     funcptr_test();
 550     loop_test();
 551     switch_test();
 552     goto_test();
 553     enum_test();
 554     typedef_test();
 555     struct_test();
 556     array_test();
 557     expr_ptr_test();
 558     bool_test();
 559     expr2_test();
 560     constant_expr_test();
 561     expr_cmp_test();
 562     char_short_test();
 563     init_test();
 564     compound_literal_test();
 565     kr_test();
 566     struct_assign_test();
 567     cast_test();
 568     bitfield_test();
 569     c99_bool_test();
 570     float_test();
 571     longlong_test();
 572     manyarg_test();
 573     stdarg_test();
 574     whitespace_test();
 575     relocation_test();
 576     old_style_function();
 577     alloca_test();
 578     c99_vla_test(5, 2);
 579     sizeof_test();
 580     typeof_test();
 581     statement_expr_test();
 582     local_label_test();
 583     asm_test();
 584     builtin_test();
 585     weak_test();
 586     return 0;
 587 }
 588
 589 int tab[3];
 590 int tab2[3][2];
 591
 592 int g;
 593
 594 void f1(g)
 595 {
 596     printf("g1=%d\n", g);
 597 }
 598
 599 void scope_test()
 600 {
 601     printf("scope:\n");
 602     g = 2;
 603     f1(1);
 604     printf("g2=%d\n", g);
 605     {
 606         int g;
 607         g = 3;
 608         printf("g3=%d\n", g);
 609         {
 610             int g;
 611             g = 4;
 612             printf("g4=%d\n", g);
 613         }
 614     }
 615     printf("g5=%d\n", g);
 616 }
 617
 618 void array_test()
 619 {
 620     int i, j, a[4];
 621
 622     printf("array:\n");
 623     printf("sizeof(a) = %d\n", sizeof(a));
 624     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 625 #ifdef C99_MACROS
 626     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 627 #endif
 628     printf("sizeof tab %d\n", sizeof(tab));
 629     printf("sizeof tab2 %d\n", sizeof tab2);
 630     tab[0] = 1;
 631     tab[1] = 2;
 632     tab[2] = 3;
 633     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 634     for(i=0;i<3;i++)
 635         for(j=0;j<2;j++)
 636             tab2[i][j] = 10 * i + j;
 637     for(i=0;i<3*2;i++) {
 638         printf(" %3d", ((int *)tab2)[i]);
 639     }
 640     printf("\n");
 641     printf("sizeof(size_t)=%d\n", sizeof(size_t));
 642     printf("sizeof(ptrdiff_t)=%d\n", sizeof(ptrdiff_t));
 643 }
 644
 645 void expr_test()
 646 {
 647     int a, b;
 648     a = 0;
 649     printf("%d\n", a += 1);
 650     printf("%d\n", a -= 2);
 651     printf("%d\n", a *= 31232132);
 652     printf("%d\n", a /= 4);
 653     printf("%d\n", a %= 20);
 654     printf("%d\n", a &= 6);
 655     printf("%d\n", a ^= 7);
 656     printf("%d\n", a |= 8);
 657     printf("%d\n", a >>= 3);
 658     printf("%d\n", a <<= 4);
 659
 660     a = 22321;
 661     b = -22321;
 662     printf("%d\n", a + 1);
 663     printf("%d\n", a - 2);
 664     printf("%d\n", a * 312);
 665     printf("%d\n", a / 4);
 666     printf("%d\n", b / 4);
 667     printf("%d\n", (unsigned)b / 4);
 668     printf("%d\n", a % 20);
 669     printf("%d\n", b % 20);
 670     printf("%d\n", (unsigned)b % 20);
 671     printf("%d\n", a & 6);
 672     printf("%d\n", a ^ 7);
 673     printf("%d\n", a | 8);
 674     printf("%d\n", a >> 3);
 675     printf("%d\n", b >> 3);
 676     printf("%d\n", (unsigned)b >> 3);
 677     printf("%d\n", a << 4);
 678     printf("%d\n", ~a);
 679     printf("%d\n", -a);
 680     printf("%d\n", +a);
 681
 682     printf("%d\n", 12 + 1);
 683     printf("%d\n", 12 - 2);
 684     printf("%d\n", 12 * 312);
 685     printf("%d\n", 12 / 4);
 686     printf("%d\n", 12 % 20);
 687     printf("%d\n", 12 & 6);
 688     printf("%d\n", 12 ^ 7);
 689     printf("%d\n", 12 | 8);
 690     printf("%d\n", 12 >> 2);
 691     printf("%d\n", 12 << 4);
 692     printf("%d\n", ~12);
 693     printf("%d\n", -12);
 694     printf("%d\n", +12);
 695     printf("%d %d %d %d\n",
 696            isid('a'),
 697            isid('g'),
 698            isid('T'),
 699            isid('('));
 700 }
 701
 702 int isid(int c)
 703 {
 704     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 705 }
 706
 707 /**********************/
 708
 709 int vstack[10], *vstack_ptr;
 710
 711 void vpush(int vt, int vc)
 712 {
 713     *vstack_ptr++ = vt;
 714     *vstack_ptr++ = vc;
 715 }
 716
 717 void vpop(int *ft, int *fc)
 718 {
 719     *fc = *--vstack_ptr;
 720     *ft = *--vstack_ptr;
 721 }
 722
 723 void expr2_test()
 724 {
 725     int a, b;
 726
 727     printf("expr2:\n");
 728     vstack_ptr = vstack;
 729     vpush(1432432, 2);
 730     vstack_ptr[-2] &= ~0xffffff80;
 731     vpop(&a, &b);
 732     printf("res= %d %d\n", a, b);
 733 }
 734
 735 void constant_expr_test()
 736 {
 737     int a;
 738     printf("constant_expr:\n");
 739     a = 3;
 740     printf("%d\n", a * 16);
 741     printf("%d\n", a * 1);
 742     printf("%d\n", a + 0);
 743 }
 744
 745 int tab4[10];
 746
 747 void expr_ptr_test()
 748 {
 749     int *p, *q;
 750     int i = -1;
 751
 752     printf("expr_ptr:\n");
 753     p = tab4;
 754     q = tab4 + 10;
 755     printf("diff=%d\n", q - p);
 756     p++;
 757     printf("inc=%d\n", p - tab4);
 758     p--;
 759     printf("dec=%d\n", p - tab4);
 760     ++p;
 761     printf("inc=%d\n", p - tab4);
 762     --p;
 763     printf("dec=%d\n", p - tab4);
 764     printf("add=%d\n", p + 3 - tab4);
 765     printf("add=%d\n", 3 + p - tab4);
 766
 767     /* check if 64bit support is ok */
 768     q = p = 0;
 769     q += i;
 770     printf("%p %p %ld\n", q, p, p-q);
 771     printf("%d %d %d %d %d %d\n",
 772            p == q, p != q, p < q, p <= q, p >= q, p > q);
 773     i = 0xf0000000;
 774     p += i;
 775     printf("%p %p %ld\n", q, p, p-q);
 776     printf("%d %d %d %d %d %d\n",
 777            p == q, p != q, p < q, p <= q, p >= q, p > q);
 778     p = (int *)((char *)p + 0xf0000000);
 779     printf("%p %p %ld\n", q, p, p-q);
 780     printf("%d %d %d %d %d %d\n",
 781            p == q, p != q, p < q, p <= q, p >= q, p > q);
 782     p += 0xf0000000;
 783     printf("%p %p %ld\n", q, p, p-q);
 784     printf("%d %d %d %d %d %d\n",
 785            p == q, p != q, p < q, p <= q, p >= q, p > q);
 786     {
 787         struct size12 {
 788             int i, j, k;
 789         };
 790         struct size12 s[2], *sp = s;
 791         int i, j;
 792         sp->i = 42;
 793         sp++;
 794         j = -1;
 795         printf("%d\n", sp[j].i);
 796     }
 797 }
 798
 799 void expr_cmp_test()
 800 {
 801     int a, b;
 802     printf("constant_expr:\n");
 803     a = -1;
 804     b = 1;
 805     printf("%d\n", a == a);
 806     printf("%d\n", a != a);
 807
 808     printf("%d\n", a < b);
 809     printf("%d\n", a <= b);
 810     printf("%d\n", a <= a);
 811     printf("%d\n", b >= a);
 812     printf("%d\n", a >= a);
 813     printf("%d\n", b > a);
 814
 815     printf("%d\n", (unsigned)a < b);
 816     printf("%d\n", (unsigned)a <= b);
 817     printf("%d\n", (unsigned)a <= a);
 818     printf("%d\n", (unsigned)b >= a);
 819     printf("%d\n", (unsigned)a >= a);
 820     printf("%d\n", (unsigned)b > a);
 821 }
 822
 823 struct empty {
 824 };
 825
 826 struct aligntest1 {
 827     char a[10];
 828 };
 829
 830 struct aligntest2 {
 831     int a;
 832     char b[10];
 833 };
 834
 835 struct aligntest3 {
 836     double a, b;
 837 };
 838
 839 struct aligntest4 {
 840     double a[0];
 841 };
 842
 843 void struct_test()
 844 {
 845     struct1 *s;
 846     union union2 u;
 847
 848     printf("struct:\n");
 849     printf("sizes: %d %d %d %d\n",
 850            sizeof(struct struct1),
 851            sizeof(struct struct2),
 852            sizeof(union union1),
 853            sizeof(union union2));
 854     st1.f1 = 1;
 855     st1.f2 = 2;
 856     st1.f3 = 3;
 857     printf("st1: %d %d %d\n",
 858            st1.f1, st1.f2, st1.f3);
 859     st1.u.v1 = 1;
 860     st1.u.v2 = 2;
 861     printf("union1: %d\n", st1.u.v1);
 862     u.w1 = 1;
 863     u.w2 = 2;
 864     printf("union2: %d\n", u.w1);
 865     s = &st2;
 866     s->f1 = 3;
 867     s->f2 = 2;
 868     s->f3 = 1;
 869     printf("st2: %d %d %d\n",
 870            s->f1, s->f2, s->f3);
 871     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 872
 873     /* align / size tests */
 874     printf("aligntest1 sizeof=%d alignof=%d\n",
 875            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 876     printf("aligntest2 sizeof=%d alignof=%d\n",
 877            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 878     printf("aligntest3 sizeof=%d alignof=%d\n",
 879            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 880     printf("aligntest4 sizeof=%d alignof=%d\n",
 881            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 882
 883     /* empty structures (GCC extension) */
 884     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 885     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 886 }
 887
 888 /* XXX: depend on endianness */
 889 void char_short_test()
 890 {
 891     int var1, var2;
 892
 893     printf("char_short:\n");
 894
 895     var1 = 0x01020304;
 896     var2 = 0xfffefdfc;
 897     printf("s8=%d %d\n",
 898            *(char *)&var1, *(char *)&var2);
 899     printf("u8=%d %d\n",
 900            *(unsigned char *)&var1, *(unsigned char *)&var2);
 901     printf("s16=%d %d\n",
 902            *(short *)&var1, *(short *)&var2);
 903     printf("u16=%d %d\n",
 904            *(unsigned short *)&var1, *(unsigned short *)&var2);
 905     printf("s32=%d %d\n",
 906            *(int *)&var1, *(int *)&var2);
 907     printf("u32=%d %d\n",
 908            *(unsigned int *)&var1, *(unsigned int *)&var2);
 909     *(char *)&var1 = 0x08;
 910     printf("var1=%x\n", var1);
 911     *(short *)&var1 = 0x0809;
 912     printf("var1=%x\n", var1);
 913     *(int *)&var1 = 0x08090a0b;
 914     printf("var1=%x\n", var1);
 915 }
 916
 917 /******************/
 918
 919 typedef struct Sym {
 920     int v;
 921     int t;
 922     int c;
 923     struct Sym *next;
 924     struct Sym *prev;
 925 } Sym;
 926
 927 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 928 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 929
 930 static int toupper1(int a)
 931 {
 932     return TOUPPER(a);
 933 }
 934
 935 void bool_test()
 936 {
 937     int *s, a, b, t, f, i;
 938
 939     a = 0;
 940     s = (void*)0;
 941     printf("!s=%d\n", !s);
 942
 943     if (!s || !s[0])
 944         a = 1;
 945     printf("a=%d\n", a);
 946
 947     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 948     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 949     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 950 #if 1 && 1
 951     printf("a1\n");
 952 #endif
 953 #if 1 || 0
 954     printf("a2\n");
 955 #endif
 956 #if 1 ? 0 : 1
 957     printf("a3\n");
 958 #endif
 959 #if 0 ? 0 : 1
 960     printf("a4\n");
 961 #endif
 962
 963     a = 4;
 964     printf("b=%d\n", a + (0 ? 1 : a / 2));
 965
 966     /* test register spilling */
 967     a = 10;
 968     b = 10;
 969     a = (a + b) * ((a < b) ?
 970                    ((b - a) * (a - b)): a + b);
 971     printf("a=%d\n", a);
 972
 973     /* test complex || or && expressions */
 974     t = 1;
 975     f = 0;
 976     a = 32;
 977     printf("exp=%d\n", f == (32 <= a && a <= 3));
 978     printf("r=%d\n", (t || f) + (t && f));
 979
 980     /* test ? : cast */
 981     {
 982         int aspect_on;
 983         int aspect_native = 65536;
 984         double bfu_aspect = 1.0;
 985         int aspect;
 986         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
 987             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
 988             printf("aspect=%d\n", aspect);
 989         }
 990     }
 991
 992     /* test ? : GCC extension */
 993     {
 994         static int v1 = 34 ? : -1; /* constant case */
 995         static int v2 = 0 ? : -1; /* constant case */
 996         int a = 30;
 997
 998         printf("%d %d\n", v1, v2);
 999         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
1000     }
1001
1002     /* again complex expression */
1003     for(i=0;i<256;i++) {
1004         if (toupper1 (i) != TOUPPER (i))
1005             printf("error %d\n", i);
1006     }
1007 }
1008
1009 /* GCC accepts that */
1010 static int tab_reinit[];
1011 static int tab_reinit[10];
1012
1013 //int cinit1; /* a global variable can be defined several times without error ! */
1014 int cinit1;
1015 int cinit1;
1016 int cinit1 = 0;
1017 int *cinit2 = (int []){3, 2, 1};
1018
1019 void compound_literal_test(void)
1020 {
1021     int *p, i;
1022     char *q, *q3;
1023
1024     printf("compound_test:\n");
1025
1026     p = (int []){1, 2, 3};
1027     for(i=0;i<3;i++)
1028         printf(" %d", p[i]);
1029     printf("\n");
1030
1031     for(i=0;i<3;i++)
1032         printf("%d", cinit2[i]);
1033     printf("\n");
1034
1035     q = "tralala1";
1036     printf("q1=%s\n", q);
1037
1038     q = (char *){ "tralala2" };
1039     printf("q2=%s\n", q);
1040
1041     q3 = (char *){ q };
1042     printf("q3=%s\n", q3);
1043
1044     q = (char []){ "tralala3" };
1045     printf("q4=%s\n", q);
1046
1047 #ifdef ALL_ISOC99
1048     p = (int []){1, 2, cinit1 + 3};
1049     for(i=0;i<3;i++)
1050         printf(" %d", p[i]);
1051     printf("\n");
1052
1053     for(i=0;i<3;i++) {
1054         p = (int []){1, 2, 4 + i};
1055         printf("%d %d %d\n",
1056                p[0],
1057                p[1],
1058                p[2]);
1059     }
1060 #endif
1061 }
1062
1063 /* K & R protos */
1064
1065 kr_func1(a, b)
1066 {
1067     return a + b;
1068 }
1069
1070 int kr_func2(a, b)
1071 {
1072     return a + b;
1073 }
1074
1075 kr_test()
1076 {
1077     printf("kr_test:\n");
1078     printf("func1=%d\n", kr_func1(3, 4));
1079     printf("func2=%d\n", kr_func2(3, 4));
1080     return 0;
1081 }
1082
1083 void num(int n)
1084 {
1085     char *tab, *p;
1086     tab = (char*)malloc(20);
1087     p = tab;
1088     while (1) {
1089         *p = 48 + (n % 10);
1090         p++;
1091         n = n / 10;
1092         if (n == 0)
1093             break;
1094     }
1095     while (p != tab) {
1096         p--;
1097         printf("%c", *p);
1098     }
1099     printf("\n");
1100     free(tab);
1101 }
1102
1103 /* structure assignment tests */
1104 struct structa1 {
1105     int f1;
1106     char f2;
1107 };
1108
1109 struct structa1 ssta1;
1110
1111 void struct_assign_test1(struct structa1 s1, int t, float f)
1112 {
1113     printf("%d %d %d %f\n", s1.f1, s1.f2, t, f);
1114 }
1115
1116 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1117 {
1118     s1.f1 += t;
1119     s1.f2 -= t;
1120     return s1;
1121 }
1122
1123 void struct_assign_test(void)
1124 {
1125     struct S {
1126       struct structa1 lsta1, lsta2;
1127       int i;
1128     } s, *ps;
1129
1130     ps = &s;
1131     ps->i = 4;
1132 #if 0
1133     printf("struct_assign_test:\n");
1134
1135     s.lsta1.f1 = 1;
1136     s.lsta1.f2 = 2;
1137     printf("%d %d\n", s.lsta1.f1, s.lsta1.f2);
1138     s.lsta2 = s.lsta1;
1139     printf("%d %d\n", s.lsta2.f1, s.lsta2.f2);
1140 #else
1141     s.lsta2.f1 = 1;
1142     s.lsta2.f2 = 2;
1143 #endif
1144     struct_assign_test1(ps->lsta2, 3, 4.5);
1145
1146     printf("before call: %d %d\n", s.lsta2.f1, s.lsta2.f2);
1147     ps->lsta2 = struct_assign_test2(ps->lsta2, ps->i);
1148     printf("after call: %d %d\n", ps->lsta2.f1, ps->lsta2.f2);
1149
1150     static struct {
1151         void (*elem)();
1152     } t[] = {
1153         /* XXX: we should allow this even without braces */
1154         { struct_assign_test }
1155     };
1156     printf("%d\n", struct_assign_test == t[0].elem);
1157 }
1158
1159 /* casts to short/char */
1160
1161 void cast1(char a, short b, unsigned char c, unsigned short d)
1162 {
1163     printf("%d %d %d %d\n", a, b, c, d);
1164 }
1165
1166 char bcast;
1167 short scast;
1168
1169 void cast_test()
1170 {
1171     int a;
1172     char c;
1173     char tab[10];
1174     unsigned b,d;
1175     short s;
1176     char *p = NULL;
1177     p -= 0x700000000042;
1178
1179     printf("cast_test:\n");
1180     a = 0xfffff;
1181     cast1(a, a, a, a);
1182     a = 0xffffe;
1183     printf("%d %d %d %d\n",
1184            (char)(a + 1),
1185            (short)(a + 1),
1186            (unsigned char)(a + 1),
1187            (unsigned short)(a + 1));
1188     printf("%d %d %d %d\n",
1189            (char)0xfffff,
1190            (short)0xfffff,
1191            (unsigned char)0xfffff,
1192            (unsigned short)0xfffff);
1193
1194     a = (bcast = 128) + 1;
1195     printf("%d\n", a);
1196     a = (scast = 65536) + 1;
1197     printf("%d\n", a);
1198
1199     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1200
1201     /* test cast from unsigned to signed short to int */
1202     b = 0xf000;
1203     d = (short)b;
1204     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1205     b = 0xf0f0;
1206     d = (char)b;
1207     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1208
1209     /* test implicit int casting for array accesses */
1210     c = 0;
1211     tab[1] = 2;
1212     tab[c] = 1;
1213     printf("%d %d\n", tab[0], tab[1]);
1214
1215     /* test implicit casting on some operators */
1216     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1217     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1218     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1219
1220     /* from pointer to integer types */
1221     printf("%d %d %ld %ld %lld %lld\n",
1222            (int)p, (unsigned int)p,
1223            (long)p, (unsigned long)p,
1224            (long long)p, (unsigned long long)p);
1225
1226     /* from integers to pointers */
1227     printf("%p %p %p %p\n",
1228            (void *)a, (void *)b, (void *)c, (void *)d);
1229 }
1230
1231 /* initializers tests */
1232 struct structinit1 {
1233     int f1;
1234     char f2;
1235     short f3;
1236     int farray[3];
1237 };
1238
1239 int sinit1 = 2;
1240 int sinit2 = { 3 };
1241 int sinit3[3] = { 1, 2, {{3}}, };
1242 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1243 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1244 int sinit6[] = { 1, 2, 3 };
1245 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1246 char sinit8[] = "hello" "trala";
1247
1248 struct structinit1 sinit9 = { 1, 2, 3 };
1249 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1250 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1251 #ifdef ALL_ISOC99
1252                                .farray[0] = 10,
1253                                .farray[1] = 11,
1254                                .farray[2] = 12,
1255 #endif
1256 };
1257
1258 char *sinit12 = "hello world";
1259 char *sinit13[] = {
1260     "test1",
1261     "test2",
1262     "test3",
1263 };
1264 char sinit14[10] = { "abc" };
1265 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1266
1267 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1268
1269 struct bar {
1270         char *s;
1271         int len;
1272 } sinit17[] = {
1273         "a1", 4,
1274         "a2", 1
1275 };
1276
1277 int sinit18[10] = {
1278     [2 ... 5] = 20,
1279     2,
1280     [8] = 10,
1281 };
1282
1283 struct complexinit0 {
1284     int a;
1285     int b;
1286 };
1287
1288 struct complexinit {
1289     int a;
1290     const struct complexinit0 *b;
1291 };
1292
1293 const static struct complexinit cix[] = {
1294     [0] = {
1295         .a = 2000,
1296         .b = (const struct complexinit0[]) {
1297                 { 2001, 2002 },
1298                 { 2003, 2003 },
1299                 {}
1300         }
1301     }
1302 };
1303
1304 struct complexinit2 {
1305         int a;
1306         int b[];
1307 };
1308
1309 struct complexinit2 cix20;
1310
1311 struct complexinit2 cix21 = {
1312         .a = 3000,
1313         .b = { 3001, 3002, 3003 }
1314 };
1315
1316 struct complexinit2 cix22 = {
1317         .a = 4000,
1318         .b = { 4001, 4002, 4003, 4004, 4005, 4006 }
1319 };
1320
1321 void init_test(void)
1322 {
1323     int linit1 = 2;
1324     int linit2 = { 3 };
1325     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1326     int linit6[] = { 1, 2, 3 };
1327     int i, j;
1328     char linit8[] = "hello" "trala";
1329     int linit12[10] = { 1, 2 };
1330     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1331     char linit14[10] = "abc";
1332     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1333     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1334     int linit17 = sizeof(linit17);
1335
1336     printf("init_test:\n");
1337
1338     printf("sinit1=%d\n", sinit1);
1339     printf("sinit2=%d\n", sinit2);
1340     printf("sinit3=%d %d %d %d\n",
1341            sizeof(sinit3),
1342            sinit3[0],
1343            sinit3[1],
1344            sinit3[2]
1345            );
1346     printf("sinit6=%d\n", sizeof(sinit6));
1347     printf("sinit7=%d %d %d %d\n",
1348            sizeof(sinit7),
1349            sinit7[0],
1350            sinit7[1],
1351            sinit7[2]
1352            );
1353     printf("sinit8=%s\n", sinit8);
1354     printf("sinit9=%d %d %d\n",
1355            sinit9.f1,
1356            sinit9.f2,
1357            sinit9.f3
1358            );
1359     printf("sinit10=%d %d %d\n",
1360            sinit10.f1,
1361            sinit10.f2,
1362            sinit10.f3
1363            );
1364     printf("sinit11=%d %d %d %d %d %d\n",
1365            sinit11.f1,
1366            sinit11.f2,
1367            sinit11.f3,
1368            sinit11.farray[0],
1369            sinit11.farray[1],
1370            sinit11.farray[2]
1371            );
1372
1373     for(i=0;i<3;i++)
1374         for(j=0;j<2;j++)
1375             printf("[%d][%d] = %d %d %d\n",
1376                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1377     printf("linit1=%d\n", linit1);
1378     printf("linit2=%d\n", linit2);
1379     printf("linit6=%d\n", sizeof(linit6));
1380     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1381
1382     printf("sinit12=%s\n", sinit12);
1383     printf("sinit13=%d %s %s %s\n",
1384            sizeof(sinit13),
1385            sinit13[0],
1386            sinit13[1],
1387            sinit13[2]);
1388     printf("sinit14=%s\n", sinit14);
1389
1390     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1391     printf("\n");
1392     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1393     printf("\n");
1394     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1395     printf("\n");
1396     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1397     printf("\n");
1398     printf("%d %d %d %d\n",
1399            linit16.a1,
1400            linit16.a2,
1401            linit16.a3,
1402            linit16.a4);
1403     /* test that initialisation is done after variable declare */
1404     printf("linit17=%d\n", linit17);
1405     printf("sinit15=%d\n", sinit15[0]);
1406     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1407     printf("sinit17=%s %d %s %d\n",
1408            sinit17[0].s, sinit17[0].len,
1409            sinit17[1].s, sinit17[1].len);
1410     for(i=0;i<10;i++)
1411         printf("%x ", sinit18[i]);
1412     printf("\n");
1413     /* complex init check */
1414     printf("cix: %d %d %d %d %d %d %d\n",
1415         cix[0].a,
1416         cix[0].b[0].a, cix[0].b[0].b,
1417         cix[0].b[1].a, cix[0].b[1].b,
1418         cix[0].b[2].a, cix[0].b[2].b);
1419     printf("cix2: %d %d\n", cix21.b[2], cix22.b[5]);
1420     printf("sizeof cix20 %d, cix21 %d, sizeof cix22 %d\n", sizeof cix20, sizeof cix21, sizeof cix22);
1421 }
1422
1423
1424 void switch_test()
1425 {
1426     int i;
1427
1428     for(i=0;i<15;i++) {
1429         switch(i) {
1430         case 0:
1431         case 1:
1432             printf("a");
1433             break;
1434         default:
1435             printf("%d", i);
1436             break;
1437         case 8 ... 12:
1438             printf("c");
1439             break;
1440         case 3:
1441             printf("b");
1442             break;
1443         }
1444     }
1445     printf("\n");
1446 }
1447
1448 /* ISOC99 _Bool type */
1449 void c99_bool_test(void)
1450 {
1451 #ifdef BOOL_ISOC99
1452     int a;
1453     _Bool b;
1454
1455     printf("bool_test:\n");
1456     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1457     a = 3;
1458     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1459     b = 3;
1460     printf("b = %d\n", b);
1461     b++;
1462     printf("b = %d\n", b);
1463 #endif
1464 }
1465
1466 void bitfield_test(void)
1467 {
1468     int a;
1469     short sa;
1470     unsigned char ca;
1471     struct sbf1 {
1472         int f1 : 3;
1473         int : 2;
1474         int f2 : 1;
1475         int : 0;
1476         int f3 : 5;
1477         int f4 : 7;
1478         unsigned int f5 : 7;
1479     } st1;
1480     printf("bitfield_test:");
1481     printf("sizeof(st1) = %d\n", sizeof(st1));
1482
1483     st1.f1 = 3;
1484     st1.f2 = 1;
1485     st1.f3 = 15;
1486     a = 120;
1487     st1.f4 = a;
1488     st1.f5 = a;
1489     st1.f5++;
1490     printf("%d %d %d %d %d\n",
1491            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1492     sa = st1.f5;
1493     ca = st1.f5;
1494     printf("%d %d\n", sa, ca);
1495
1496     st1.f1 = 7;
1497     if (st1.f1 == -1)
1498         printf("st1.f1 == -1\n");
1499     else
1500         printf("st1.f1 != -1\n");
1501     if (st1.f2 == -1)
1502         printf("st1.f2 == -1\n");
1503     else
1504         printf("st1.f2 != -1\n");
1505
1506     /* bit sizes below must be bigger than 32 since GCC doesn't allow
1507        long-long bitfields whose size is not bigger than int */
1508     struct sbf2 {
1509         long long f1 : 45;
1510         long long : 2;
1511         long long f2 : 35;
1512         unsigned long long f3 : 38;
1513     } st2;
1514     st2.f1 = 0x123456789ULL;
1515     a = 120;
1516     st2.f2 = (long long)a << 25;
1517     st2.f3 = a;
1518     st2.f2++;
1519     printf("%lld %lld %lld\n", st2.f1, st2.f2, st2.f3);
1520 }
1521
1522 #ifdef __x86_64__
1523 #define FLOAT_FMT "%f\n"
1524 #else
1525 /* x86's float isn't compatible with GCC */
1526 #define FLOAT_FMT "%.5f\n"
1527 #endif
1528
1529 /* declare strto* functions as they are C99 */
1530 double strtod(const char *nptr, char **endptr);
1531 float strtof(const char *nptr, char **endptr);
1532 long double strtold(const char *nptr, char **endptr);
1533
1534 #define FTEST(prefix, type, fmt)\
1535 void prefix ## cmp(type a, type b)\
1536 {\
1537     printf("%d %d %d %d %d %d\n",\
1538            a == b,\
1539            a != b,\
1540            a < b,\
1541            a > b,\
1542            a >= b,\
1543            a <= b);\
1544     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1545            a,\
1546            b,\
1547            a + b,\
1548            a - b,\
1549            a * b,\
1550            a / b,\
1551            -a);\
1552     printf(fmt "\n", ++a);\
1553     printf(fmt "\n", a++);\
1554     printf(fmt "\n", a);\
1555     b = 0;\
1556     printf("%d %d\n", !a, !b);\
1557 }\
1558 void prefix ## fcast(type a)\
1559 {\
1560     float fa;\
1561     double da;\
1562     long double la;\
1563     int ia;\
1564     unsigned int ua;\
1565     type b;\
1566     fa = a;\
1567     da = a;\
1568     la = a;\
1569     printf("ftof: %f %f %Lf\n", fa, da, la);\
1570     ia = (int)a;\
1571     ua = (unsigned int)a;\
1572     printf("ftoi: %d %u\n", ia, ua);\
1573     ia = -1234;\
1574     ua = 0x81234500;\
1575     b = ia;\
1576     printf("itof: " fmt "\n", b);\
1577     b = ua;\
1578     printf("utof: " fmt "\n", b);\
1579 }\
1580 \
1581 float prefix ## retf(type a) { return a; }\
1582 double prefix ## retd(type a) { return a; }\
1583 long double prefix ## retld(type a) { return a; }\
1584 \
1585 void prefix ## call(void)\
1586 {\
1587     printf("float: " FLOAT_FMT, prefix ## retf(42.123456789));\
1588     printf("double: %f\n", prefix ## retd(42.123456789));\
1589     printf("long double: %Lf\n", prefix ## retld(42.123456789));\
1590     printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
1591 }\
1592 \
1593 void prefix ## test(void)\
1594 {\
1595     printf("testing '%s'\n", #type);\
1596     prefix ## cmp(1, 2.5);\
1597     prefix ## cmp(2, 1.5);\
1598     prefix ## cmp(1, 1);\
1599     prefix ## fcast(234.6);\
1600     prefix ## fcast(-2334.6);\
1601     prefix ## call();\
1602 }
1603
1604 FTEST(f, float, "%f")
1605 FTEST(d, double, "%f")
1606 FTEST(ld, long double, "%Lf")
1607
1608 double ftab1[3] = { 1.2, 3.4, -5.6 };
1609
1610
1611 void float_test(void)
1612 {
1613     float fa, fb;
1614     double da, db;
1615     int a;
1616     unsigned int b;
1617
1618     printf("float_test:\n");
1619     printf("sizeof(float) = %d\n", sizeof(float));
1620     printf("sizeof(double) = %d\n", sizeof(double));
1621     printf("sizeof(long double) = %d\n", sizeof(long double));
1622     ftest();
1623     dtest();
1624     ldtest();
1625     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1626     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1627     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1628     da = 123;
1629     printf("da=%f\n", da);
1630     fa = 123;
1631     printf("fa=%f\n", fa);
1632     a = 4000000000;
1633     da = a;
1634     printf("da = %f\n", da);
1635     b = 4000000000;
1636     db = b;
1637     printf("db = %f\n", db);
1638 }
1639
1640 int fib(int n)
1641 {
1642     if (n <= 2)
1643         return 1;
1644     else
1645         return fib(n-1) + fib(n-2);
1646 }
1647
1648 void funcptr_test()
1649 {
1650     void (*func)(int);
1651     int a;
1652     struct {
1653         int dummy;
1654         void (*func)(int);
1655     } st1;
1656
1657     printf("funcptr:\n");
1658     func = &num;
1659     (*func)(12345);
1660     func = num;
1661     a = 1;
1662     a = 1;
1663     func(12345);
1664     /* more complicated pointer computation */
1665     st1.func = num;
1666     st1.func(12346);
1667     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1668     printf("sizeof2 = %d\n", sizeof funcptr_test);
1669     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1670     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1671 }
1672
1673 void lloptest(long long a, long long b)
1674 {
1675     unsigned long long ua, ub;
1676
1677     ua = a;
1678     ub = b;
1679     /* arith */
1680     printf("arith: %Ld %Ld %Ld\n",
1681            a + b,
1682            a - b,
1683            a * b);
1684
1685     if (b != 0) {
1686         printf("arith1: %Ld %Ld\n",
1687            a / b,
1688            a % b);
1689     }
1690
1691     /* binary */
1692     printf("bin: %Ld %Ld %Ld\n",
1693            a & b,
1694            a | b,
1695            a ^ b);
1696
1697     /* tests */
1698     printf("test: %d %d %d %d %d %d\n",
1699            a == b,
1700            a != b,
1701            a < b,
1702            a > b,
1703            a >= b,
1704            a <= b);
1705
1706     printf("utest: %d %d %d %d %d %d\n",
1707            ua == ub,
1708            ua != ub,
1709            ua < ub,
1710            ua > ub,
1711            ua >= ub,
1712            ua <= ub);
1713
1714     /* arith2 */
1715     a++;
1716     b++;
1717     printf("arith2: %Ld %Ld\n", a, b);
1718     printf("arith2: %Ld %Ld\n", a++, b++);
1719     printf("arith2: %Ld %Ld\n", --a, --b);
1720     printf("arith2: %Ld %Ld\n", a, b);
1721     b = ub = 0;
1722     printf("not: %d %d %d %d\n", !a, !ua, !b, !ub);
1723 }
1724
1725 void llshift(long long a, int b)
1726 {
1727     printf("shift: %Ld %Ld %Ld\n",
1728            (unsigned long long)a >> b,
1729            a >> b,
1730            a << b);
1731     printf("shiftc: %Ld %Ld %Ld\n",
1732            (unsigned long long)a >> 3,
1733            a >> 3,
1734            a << 3);
1735     printf("shiftc: %Ld %Ld %Ld\n",
1736            (unsigned long long)a >> 35,
1737            a >> 35,
1738            a << 35);
1739 }
1740
1741 void llfloat(void)
1742 {
1743     float fa;
1744     double da;
1745     long double lda;
1746     long long la, lb, lc;
1747     unsigned long long ula, ulb, ulc;
1748     la = 0x12345678;
1749     ula = 0x72345678;
1750     la = (la << 20) | 0x12345;
1751     ula = ula << 33;
1752     printf("la=%Ld ula=%Lu\n", la, ula);
1753
1754     fa = la;
1755     da = la;
1756     lda = la;
1757     printf("lltof: %f %f %Lf\n", fa, da, lda);
1758
1759     la = fa;
1760     lb = da;
1761     lc = lda;
1762     printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
1763
1764     fa = ula;
1765     da = ula;
1766     lda = ula;
1767     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1768
1769     ula = fa;
1770     ulb = da;
1771     ulc = lda;
1772     printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
1773 }
1774
1775 long long llfunc1(int a)
1776 {
1777     return a * 2;
1778 }
1779
1780 struct S {
1781     int id;
1782     char item;
1783 };
1784
1785 long long int value(struct S *v)
1786 {
1787     return ((long long int)v->item);
1788 }
1789
1790 void longlong_test(void)
1791 {
1792     long long a, b, c;
1793     int ia;
1794     unsigned int ua;
1795     printf("longlong_test:\n");
1796     printf("sizeof(long long) = %d\n", sizeof(long long));
1797     ia = -1;
1798     ua = -2;
1799     a = ia;
1800     b = ua;
1801     printf("%Ld %Ld\n", a, b);
1802     printf("%Ld %Ld %Ld %Lx\n",
1803            (long long)1,
1804            (long long)-2,
1805            1LL,
1806            0x1234567812345679);
1807     a = llfunc1(-3);
1808     printf("%Ld\n", a);
1809
1810     lloptest(1000, 23);
1811     lloptest(0xff, 0x1234);
1812     b = 0x72345678 << 10;
1813     lloptest(-3, b);
1814     llshift(0x123, 5);
1815     llshift(-23, 5);
1816     b = 0x72345678LL << 10;
1817     llshift(b, 47);
1818
1819     llfloat();
1820 #if 1
1821     b = 0x12345678;
1822     a = -1;
1823     c = a + b;
1824     printf("%Lx\n", c);
1825 #endif
1826
1827     /* long long reg spill test */
1828     {
1829           struct S a;
1830
1831           a.item = 3;
1832           printf("%lld\n", value(&a));
1833     }
1834     lloptest(0x80000000, 0);
1835
1836     /* another long long spill test */
1837     {
1838         long long *p, v;
1839         v = 1;
1840         p = &v;
1841         p[0]++;
1842         printf("%lld\n", *p);
1843     }
1844
1845     a = 68719476720LL;
1846     b = 4294967295LL;
1847     printf("%d %d %d %d\n", a > b, a < b, a >= b, a <= b);
1848
1849     printf("%Ld\n", 0x123456789LLU);
1850 }
1851
1852 void manyarg_test(void)
1853 {
1854     long double ld = 1234567891234LL;
1855     printf("manyarg_test:\n");
1856     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1857            1, 2, 3, 4, 5, 6, 7, 8,
1858            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1859     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1860            "%Ld %Ld %f %f\n",
1861            1, 2, 3, 4, 5, 6, 7, 8,
1862            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1863            1234567891234LL, 987654321986LL,
1864            42.0, 43.0);
1865     printf("%Lf %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1866            "%Ld %Ld %f %f\n",
1867            ld, 1, 2, 3, 4, 5, 6, 7, 8,
1868            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1869            1234567891234LL, 987654321986LL,
1870            42.0, 43.0);
1871     /* XXX: known bug of x86-64 */
1872 #ifndef __x86_64__
1873     printf("%d %d %d %d %d %d %d %d %Lf\n",
1874            1, 2, 3, 4, 5, 6, 7, 8, ld);
1875     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1876            "%Ld %Ld %f %f %Lf\n",
1877            1, 2, 3, 4, 5, 6, 7, 8,
1878            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1879            1234567891234LL, 987654321986LL,
1880            42.0, 43.0, ld);
1881     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1882            "%Lf %Ld %Ld %f %f %Lf\n",
1883            1, 2, 3, 4, 5, 6, 7, 8,
1884            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1885            ld, 1234567891234LL, 987654321986LL,
1886            42.0, 43.0, ld);
1887 #endif
1888 }
1889
1890 void vprintf1(const char *fmt, ...)
1891 {
1892     va_list ap, aq;
1893     const char *p;
1894     int c, i;
1895     double d;
1896     long long ll;
1897     long double ld;
1898
1899     va_start(aq, fmt);
1900     va_copy(ap, aq);
1901
1902     p = fmt;
1903     for(;;) {
1904         c = *p;
1905         if (c == '\0')
1906             break;
1907         p++;
1908         if (c == '%') {
1909             c = *p;
1910             switch(c) {
1911             case '\0':
1912                 goto the_end;
1913             case 'd':
1914                 i = va_arg(ap, int);
1915                 printf("%d", i);
1916                 break;
1917             case 'f':
1918                 d = va_arg(ap, double);
1919                 printf("%f", d);
1920                 break;
1921             case 'l':
1922                 ll = va_arg(ap, long long);
1923                 printf("%Ld", ll);
1924                 break;
1925             case 'F':
1926                 ld = va_arg(ap, long double);
1927                 printf("%Lf", ld);
1928                 break;
1929             }
1930             p++;
1931         } else {
1932             putchar(c);
1933         }
1934     }
1935  the_end:
1936     va_end(aq);
1937     va_end(ap);
1938 }
1939
1940 struct myspace {
1941     short int profile;
1942 };
1943
1944 void stdarg_for_struct(struct myspace bob, ...)
1945 {
1946     struct myspace george, bill;
1947     va_list ap;
1948     short int validate;
1949
1950     va_start(ap, bob);
1951     bill     = va_arg(ap, struct myspace);
1952     george   = va_arg(ap, struct myspace);
1953     validate = va_arg(ap, int);
1954     printf("stdarg_for_struct: %d %d %d %d\n",
1955            bob.profile, bill.profile, george.profile, validate);
1956     va_end(ap);
1957 }
1958
1959 void stdarg_test(void)
1960 {
1961     long double ld = 1234567891234LL;
1962     struct myspace bob;
1963
1964     vprintf1("%d %d %d\n", 1, 2, 3);
1965     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
1966     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
1967     vprintf1("%F %F %F\n", 1.2L, 2.3L, 3.4L);
1968 #ifdef __x86_64__
1969     /* a bug of x86's TCC */
1970     vprintf1("%d %f %l %F %d %f %l %F\n",
1971              1, 1.2, 3L, 4.5L, 6, 7.8, 9L, 0.1L);
1972 #endif
1973     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f\n",
1974              1, 2, 3, 4, 5, 6, 7, 8,
1975              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8);
1976     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1977              1, 2, 3, 4, 5, 6, 7, 8,
1978              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1979     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1980              "%l %l %f %f\n",
1981              1, 2, 3, 4, 5, 6, 7, 8,
1982              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1983              1234567891234LL, 987654321986LL,
1984              42.0, 43.0);
1985     vprintf1("%F %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1986              "%l %l %f %f\n",
1987              ld, 1, 2, 3, 4, 5, 6, 7, 8,
1988              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1989              1234567891234LL, 987654321986LL,
1990              42.0, 43.0);
1991     vprintf1("%d %d %d %d %d %d %d %d %F\n",
1992              1, 2, 3, 4, 5, 6, 7, 8, ld);
1993     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1994              "%l %l %f %f %F\n",
1995              1, 2, 3, 4, 5, 6, 7, 8,
1996              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1997              1234567891234LL, 987654321986LL,
1998              42.0, 43.0, ld);
1999     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2000              "%F %l %l %f %f %F\n",
2001              1, 2, 3, 4, 5, 6, 7, 8,
2002              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2003              ld, 1234567891234LL, 987654321986LL,
2004              42.0, 43.0, ld);
2005
2006     bob.profile = 42;
2007     stdarg_for_struct(bob, bob, bob, bob.profile);
2008 }
2009
2010 void whitespace_test(void)
2011 {
2012     char *str;
2013
2014 \f\v
#if 1
2015     pri\
2016 ntf("whitspace:\n");\f\v
2017 #endif
2018     pf("N=%d\n", 2);
2019
2020 #ifdef CORRECT_CR_HANDLING
2021     pri\
2022 ntf("aaa=%d\n", 3);
2023 #endif
2024
2025     pri\
2026 \
2027 ntf("min=%d\n", 4);
2028
2029 #ifdef ACCEPT_CR_IN_STRINGS
2030     printf("len1=%d\n", strlen("
2031 "));
2032 #ifdef CORRECT_CR_HANDLING
2033     str = "
2034 ";
2035     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
2036 #endif
2037     printf("len1=%d\n", strlen("
a
2038 "));
2039 #endif /* ACCEPT_CR_IN_STRINGS */
2040 }
2041
2042 int reltab[3] = { 1, 2, 3 };
2043
2044 int *rel1 = &reltab[1];
2045 int *rel2 = &reltab[2];
2046
2047 void relocation_test(void)
2048 {
2049     printf("*rel1=%d\n", *rel1);
2050     printf("*rel2=%d\n", *rel2);
2051 }
2052
2053 void old_style_f(a,b,c)
2054      int a, b;
2055      double c;
2056 {
2057     printf("a=%d b=%d b=%f\n", a, b, c);
2058 }
2059
2060 void decl_func1(int cmpfn())
2061 {
2062     printf("cmpfn=%lx\n", (long)cmpfn);
2063 }
2064
2065 void decl_func2(cmpfn)
2066 int cmpfn();
2067 {
2068     printf("cmpfn=%lx\n", (long)cmpfn);
2069 }
2070
2071 void old_style_function(void)
2072 {
2073     old_style_f((void *)1, 2, 3.0);
2074     decl_func1(NULL);
2075     decl_func2(NULL);
2076 }
2077
2078 void alloca_test()
2079 {
2080 #if defined __i386__ || defined __x86_64__
2081     char *p = alloca(16);
2082     strcpy(p,"123456789012345");
2083     printf("alloca: p is %s\n", p);
2084     char *demo = "This is only a test.\n";
2085     /* Test alloca embedded in a larger expression */
2086     printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
2087 #endif
2088 }
2089
2090 void *bounds_checking_is_enabled()
2091 {
2092     char ca[10], *cp = ca-1;
2093     return (ca != cp + 1) ? cp : NULL;
2094 }
2095
2096 typedef int constant_negative_array_size_as_compile_time_assertion_idiom[(1 ? 2 : 0) - 1];
2097
2098 void c99_vla_test(int size1, int size2)
2099 {
2100 #if defined __i386__ || defined __x86_64__
2101     int size = size1 * size2;
2102     int tab1[size][2], tab2[10][2];
2103     void *tab1_ptr, *tab2_ptr, *bad_ptr;
2104
2105     /* "size" should have been 'captured' at tab1 declaration,
2106         so modifying it should have no effect on VLA behaviour. */
2107     size = size-1;
2108
2109     printf("Test C99 VLA 1 (sizeof): ");
2110     printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
2111     tab1_ptr = tab1;
2112     tab2_ptr = tab2;
2113     printf("Test C99 VLA 2 (ptrs substract): ");
2114     printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
2115     printf("Test C99 VLA 3 (ptr add): ");
2116     printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
2117     printf("Test C99 VLA 4 (ptr access): ");
2118     tab1[size1][1] = 42;
2119     printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
2120
2121     printf("Test C99 VLA 5 (bounds checking (might be disabled)): ");
2122     if (bad_ptr = bounds_checking_is_enabled()) {
2123         int *t1 = &tab1[size1 * size2 - 1][3];
2124         int *t2 = &tab2[9][3];
2125         printf("%s ", bad_ptr == t1 ? "PASSED" : "FAILED");
2126         printf("%s ", bad_ptr == t2 ? "PASSED" : "FAILED");
2127
2128         char*c1 = 1 + sizeof(tab1) + (char*)tab1;
2129         char*c2 = 1 + sizeof(tab2) + (char*)tab2;
2130         printf("%s ", bad_ptr == c1 ? "PASSED" : "FAILED");
2131         printf("%s ", bad_ptr == c2 ? "PASSED" : "FAILED");
2132
2133         int *i1 = tab1[-1];
2134         int *i2 = tab2[-1];
2135         printf("%s ", bad_ptr == i1 ? "PASSED" : "FAILED");
2136         printf("%s ", bad_ptr == i2 ? "PASSED" : "FAILED");
2137
2138         int *x1 = tab1[size1 * size2 + 1];
2139         int *x2 = tab2[10 + 1];
2140         printf("%s ", bad_ptr == x1 ? "PASSED" : "FAILED");
2141         printf("%s ", bad_ptr == x2 ? "PASSED" : "FAILED");
2142     } else {
2143         printf("PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED ");
2144     }
2145     printf("\n");
2146 #endif
2147 }
2148
2149 void sizeof_test(void)
2150 {
2151     int a;
2152     int **ptr;
2153
2154     printf("sizeof(int) = %d\n", sizeof(int));
2155     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
2156     printf("sizeof(long) = %d\n", sizeof(long));
2157     printf("sizeof(unsigned long) = %d\n", sizeof(unsigned long));
2158     printf("sizeof(short) = %d\n", sizeof(short));
2159     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
2160     printf("sizeof(char) = %d\n", sizeof(char));
2161     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
2162     printf("sizeof(func) = %d\n", sizeof sizeof_test());
2163     a = 1;
2164     printf("sizeof(a++) = %d\n", sizeof a++);
2165     printf("a=%d\n", a);
2166     ptr = NULL;
2167     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
2168
2169     /* some alignof tests */
2170     printf("__alignof__(int) = %d\n", __alignof__(int));
2171     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
2172     printf("__alignof__(short) = %d\n", __alignof__(short));
2173     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
2174     printf("__alignof__(char) = %d\n", __alignof__(char));
2175     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
2176     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
2177 }
2178
2179 void typeof_test(void)
2180 {
2181     double a;
2182     typeof(a) b;
2183     typeof(float) c;
2184
2185     a = 1.5;
2186     b = 2.5;
2187     c = 3.5;
2188     printf("a=%f b=%f c=%f\n", a, b, c);
2189 }
2190
2191 void statement_expr_test(void)
2192 {
2193     int a, i;
2194
2195     a = 0;
2196     for(i=0;i<10;i++) {
2197         a += 1 +
2198             ( { int b, j;
2199                 b = 0;
2200                 for(j=0;j<5;j++)
2201                     b += j; b;
2202             } );
2203     }
2204     printf("a=%d\n", a);
2205
2206 }
2207
2208 void local_label_test(void)
2209 {
2210     int a;
2211     goto l1;
2212  l2:
2213     a = 1 + ({
2214         __label__ l1, l2, l3, l4;
2215         goto l1;
2216     l4:
2217         printf("aa1\n");
2218         goto l3;
2219     l2:
2220         printf("aa3\n");
2221         goto l4;
2222     l1:
2223         printf("aa2\n");
2224         goto l2;
2225     l3:;
2226         1;
2227     });
2228     printf("a=%d\n", a);
2229     return;
2230  l4:
2231     printf("bb1\n");
2232     goto l2;
2233  l1:
2234     printf("bb2\n");
2235     goto l4;
2236 }
2237
2238 /* inline assembler test */
2239 #ifdef __i386__
2240
2241 /* from linux kernel */
2242 static char * strncat1(char * dest,const char * src,size_t count)
2243 {
2244 int d0, d1, d2, d3;
2245 __asm__ __volatile__(
2246         "repne\n\t"
2247         "scasb\n\t"
2248         "decl %1\n\t"
2249         "movl %8,%3\n"
2250         "1:\tdecl %3\n\t"
2251         "js 2f\n\t"
2252         "lodsb\n\t"
2253         "stosb\n\t"
2254         "testb %%al,%%al\n\t"
2255         "jne 1b\n"
2256         "2:\txorl %2,%2\n\t"
2257         "stosb"
2258         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2259         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2260         : "memory");
2261 return dest;
2262 }
2263
2264 static char * strncat2(char * dest,const char * src,size_t count)
2265 {
2266 int d0, d1, d2, d3;
2267 __asm__ __volatile__(
2268         "repne scasb\n\t" /* one-line repne prefix + string op */
2269         "decl %1\n\t"
2270         "movl %8,%3\n"
2271         "1:\tdecl %3\n\t"
2272         "js 2f\n\t"
2273         "lodsb\n\t"
2274         "stosb\n\t"
2275         "testb %%al,%%al\n\t"
2276         "jne 1b\n"
2277         "2:\txorl %2,%2\n\t"
2278         "stosb"
2279         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2280         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2281         : "memory");
2282 return dest;
2283 }
2284
2285 static inline void * memcpy1(void * to, const void * from, size_t n)
2286 {
2287 int d0, d1, d2;
2288 __asm__ __volatile__(
2289         "rep ; movsl\n\t"
2290         "testb $2,%b4\n\t"
2291         "je 1f\n\t"
2292         "movsw\n"
2293         "1:\ttestb $1,%b4\n\t"
2294         "je 2f\n\t"
2295         "movsb\n"
2296         "2:"
2297         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2298         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2299         : "memory");
2300 return (to);
2301 }
2302
2303 static inline void * memcpy2(void * to, const void * from, size_t n)
2304 {
2305 int d0, d1, d2;
2306 __asm__ __volatile__(
2307         "rep movsl\n\t"  /* one-line rep prefix + string op */
2308         "testb $2,%b4\n\t"
2309         "je 1f\n\t"
2310         "movsw\n"
2311         "1:\ttestb $1,%b4\n\t"
2312         "je 2f\n\t"
2313         "movsb\n"
2314         "2:"
2315         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2316         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2317         : "memory");
2318 return (to);
2319 }
2320
2321 static __inline__ void sigaddset1(unsigned int *set, int _sig)
2322 {
2323         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2324 }
2325
2326 static __inline__ void sigdelset1(unsigned int *set, int _sig)
2327 {
2328         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2329 }
2330
2331 static __inline__ __const__ unsigned int swab32(unsigned int x)
2332 {
2333         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
2334                 "rorl $16,%0\n\t"       /* swap words           */
2335                 "xchgb %b0,%h0"         /* swap higher bytes    */
2336                 :"=q" (x)
2337                 : "0" (x));
2338         return x;
2339 }
2340
2341 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
2342 {
2343     unsigned long long res;
2344     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
2345     return res;
2346 }
2347
2348 static __inline__ unsigned long long inc64(unsigned long long a)
2349 {
2350     unsigned long long res;
2351     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
2352     return res;
2353 }
2354
2355 unsigned int set;
2356
2357 void asm_test(void)
2358 {
2359     char buf[128];
2360     unsigned int val;
2361
2362     printf("inline asm:\n");
2363     /* test the no operand case */
2364     asm volatile ("xorl %eax, %eax");
2365
2366     memcpy1(buf, "hello", 6);
2367     strncat1(buf, " worldXXXXX", 3);
2368     printf("%s\n", buf);
2369
2370     memcpy2(buf, "hello", 6);
2371     strncat2(buf, " worldXXXXX", 3);
2372     printf("%s\n", buf);
2373
2374     /* 'A' constraint test */
2375     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
2376     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
2377
2378     set = 0xff;
2379     sigdelset1(&set, 2);
2380     sigaddset1(&set, 16);
2381     /* NOTE: we test here if C labels are correctly restored after the
2382        asm statement */
2383     goto label1;
2384  label2:
2385     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
2386 #ifdef __GNUC__ // works strange with GCC 4.3
2387     set=0x1080fd;
2388 #endif
2389     printf("set=0x%x\n", set);
2390     val = 0x01020304;
2391     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
2392     return;
2393  label1:
2394     goto label2;
2395 }
2396
2397 #else
2398
2399 void asm_test(void)
2400 {
2401 }
2402
2403 #endif
2404
2405 #define COMPAT_TYPE(type1, type2) \
2406 {\
2407     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
2408            __builtin_types_compatible_p (type1, type2));\
2409 }
2410
2411 int constant_p_var;
2412
2413 void builtin_test(void)
2414 {
2415 #if GCC_MAJOR >= 3
2416     COMPAT_TYPE(int, int);
2417     COMPAT_TYPE(int, unsigned int);
2418     COMPAT_TYPE(int, char);
2419     COMPAT_TYPE(int, const int);
2420     COMPAT_TYPE(int, volatile int);
2421     COMPAT_TYPE(int *, int *);
2422     COMPAT_TYPE(int *, void *);
2423     COMPAT_TYPE(int *, const int *);
2424     COMPAT_TYPE(char *, unsigned char *);
2425 /* space is needed because tcc preprocessor introduces a space between each token */
2426     COMPAT_TYPE(char * *, void *);
2427 #endif
2428     printf("res = %d\n", __builtin_constant_p(1));
2429     printf("res = %d\n", __builtin_constant_p(1 + 2));
2430     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
2431     printf("res = %d\n", __builtin_constant_p(constant_p_var));
2432 }
2433
2434
2435 extern int __attribute__((weak)) weak_f1(void);
2436 extern int __attribute__((weak)) weak_f2(void);
2437 extern int                       weak_f3(void);
2438 extern int __attribute__((weak)) weak_v1;
2439 extern int __attribute__((weak)) weak_v2;
2440 extern int                       weak_v3;
2441
2442 extern int                           (*weak_fpa)() __attribute__((weak));
2443 extern int __attribute__((weak))     (*weak_fpb)();
2444 extern     __attribute__((weak)) int (*weak_fpc)();
2445
2446 extern int                     weak_asm_f1(void) asm("weak_asm_f1x") __attribute((weak));
2447 extern int __attribute((weak)) weak_asm_f2(void) asm("weak_asm_f2x")                    ;
2448 extern int __attribute((weak)) weak_asm_f3(void) asm("weak_asm_f3x") __attribute((weak));
2449 extern int                     weak_asm_v1       asm("weak_asm_v1x") __attribute((weak));
2450 extern int __attribute((weak)) weak_asm_v2       asm("weak_asm_v2x")                    ;
2451 extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak));
2452
2453 static const size_t dummy = 0;
2454 extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy")));
2455 extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2;
2456 extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3;
2457
2458 int some_lib_func(void);
2459 int dummy_impl_of_slf(void) { return 444; }
2460 int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf")));
2461
2462 int weak_toolate() __attribute__((weak));
2463 int weak_toolate() { return 0; }
2464
2465 void __attribute__((weak)) weak_test(void)
2466 {
2467         printf("weak_f1=%d\n", weak_f1 ? weak_f1() : 123);
2468         printf("weak_f2=%d\n", weak_f2 ? weak_f2() : 123);
2469         printf("weak_f3=%d\n", weak_f3 ? weak_f3() : 123);
2470         printf("weak_v1=%d\n",&weak_v1 ? weak_v1   : 123);
2471         printf("weak_v2=%d\n",&weak_v2 ? weak_v2   : 123);
2472         printf("weak_v3=%d\n",&weak_v3 ? weak_v3   : 123);
2473
2474         printf("weak_fpa=%d\n",&weak_fpa ? weak_fpa() : 123);
2475         printf("weak_fpb=%d\n",&weak_fpb ? weak_fpb() : 123);
2476         printf("weak_fpc=%d\n",&weak_fpc ? weak_fpc() : 123);
2477
2478         printf("weak_asm_f1=%d\n", weak_asm_f1 != NULL);
2479         printf("weak_asm_f2=%d\n", weak_asm_f2 != NULL);
2480         printf("weak_asm_f3=%d\n", weak_asm_f3 != NULL);
2481         printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL);
2482         printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL);
2483         printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL);
2484 }
2485
2486 int __attribute__((weak)) weak_f2() { return 222; }
2487 int __attribute__((weak)) weak_f3() { return 333; }
2488 int __attribute__((weak)) weak_v2 = 222;
2489 int __attribute__((weak)) weak_v3 = 333;
2490
2491 void const_func(const int a)
2492 {
2493 }
2494
2495 void const_warn_test(void)
2496 {
2497     const_func(1);
2498 }
2499
2500 struct condstruct {
2501   int i;
2502 };
2503
2504 int getme (struct condstruct *s, int i)
2505 {
2506   int i1 = (i == 0 ? 0 : s)->i;
2507   int i2 = (i == 0 ? s : 0)->i;
2508   int i3 = (i == 0 ? (void*)0 : s)->i;
2509   int i4 = (i == 0 ? s : (void*)0)->i;
2510   return i1 + i2 + i3 + i4;
2511 }