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 void global_data_test(void);
  89 void cmp_comparison_test(void);
  90 void math_cmp_test(void);
  91 void callsave_test(void);
  92
  93 int fib(int n);
  94 void num(int n);
  95 void forward_ref(void);
  96 int isid(int c);
  97
  98 #define A 2
  99 #define N 1234 + A
 100 #define pf printf
 101 #define M1(a, b)  (a) + (b)
 102
 103 #define str\
 104 (s) # s
 105 #define glue(a, b) a ## b
 106 #define xglue(a, b) glue(a, b)
 107 #define HIGHLOW "hello"
 108 #define LOW LOW ", world"
 109
 110 static int onetwothree = 123;
 111 #define onetwothree4 onetwothree
 112 #define onetwothree xglue(onetwothree,4)
 113
 114 #define min(a, b) ((a) < (b) ? (a) : (b))
 115
 116 #ifdef C99_MACROS
 117 #define dprintf(level,...) printf(__VA_ARGS__)
 118 #endif
 119
 120 /* gcc vararg macros */
 121 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 122
 123 #define MACRO_NOARGS()
 124
 125 #define AAA 3
 126 #undef AAA
 127 #define AAA 4
 128
 129 #if 1
 130 #define B3 1
 131 #elif 1
 132 #define B3 2
 133 #elif 0
 134 #define B3 3
 135 #else
 136 #define B3 4
 137 #endif
 138
 139 #define __INT64_C(c)    c ## LL
 140 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 141
 142 int qq(int x)
 143 {
 144     return x + 40;
 145 }
 146 #define qq(x) x
 147
 148 #define spin_lock(lock) do { } while (0)
 149 #define wq_spin_lock spin_lock
 150 #define TEST2() wq_spin_lock(a)
 151
 152 void macro_test(void)
 153 {
 154     printf("macro:\n");\f\v
 155     pf("N=%d\n", N);
 156     printf("aaa=%d\n", AAA);
 157
 158     printf("min=%d\n", min(1, min(2, -1)));
 159
 160     printf("s1=%s\n", glue(HIGH, LOW));
 161     printf("s2=%s\n", xglue(HIGH, LOW));
 162     printf("s3=%s\n", str("c"));
 163     printf("s4=%s\n", str(a1));
 164     printf("B3=%d\n", B3);
 165
 166     printf("onetwothree=%d\n", onetwothree);
 167
 168 #ifdef A
 169     printf("A defined\n");
 170 #endif
 171 #ifdef B
 172     printf("B defined\n");
 173 #endif
 174 #ifdef A
 175     printf("A defined\n");
 176 #else
 177     printf("A not defined\n");
 178 #endif
 179 #ifdef B
 180     printf("B defined\n");
 181 #else
 182     printf("B not defined\n");
 183 #endif
 184
 185 #ifdef A
 186     printf("A defined\n");
 187 #ifdef B
 188     printf("B1 defined\n");
 189 #else
 190     printf("B1 not defined\n");
 191 #endif
 192 #else
 193     printf("A not defined\n");
 194 #ifdef B
 195     printf("B2 defined\n");
 196 #else
 197     printf("B2 not defined\n");
 198 #endif
 199 #endif
 200
 201 #if 1+1
 202     printf("test true1\n");
 203 #endif
 204 #if 0
 205     printf("test true2\n");
 206 #endif
 207 #if 1-1
 208     printf("test true3\n");
 209 #endif
 210 #if defined(A)
 211     printf("test trueA\n");
 212 #endif
 213 #if defined(B)
 214     printf("test trueB\n");
 215 #endif
 216
 217 #if 0
 218     printf("test 0\n");
 219 #elif 0
 220     printf("test 1\n");
 221 #elif 2
 222     printf("test 2\n");
 223 #else
 224     printf("test 3\n");
 225 #endif
 226
 227     MACRO_NOARGS();
 228
 229 #ifdef __LINE__
 230     printf("__LINE__ defined\n");
 231 #endif
 232
 233     printf("__LINE__=%d __FILE__=%s\n",
 234            __LINE__, __FILE__);
 235 #line 200
 236     printf("__LINE__=%d __FILE__=%s\n",
 237            __LINE__, __FILE__);
 238 #line 203 "test"
 239     printf("__LINE__=%d __FILE__=%s\n",
 240            __LINE__, __FILE__);
 241 #line 227 "tcctest.c"
 242
 243     /* not strictly preprocessor, but we test it there */
 244 #ifdef C99_MACROS
 245     printf("__func__ = %s\n", __func__);
 246     dprintf(1, "vaarg=%d\n", 1);
 247 #endif
 248     dprintf1(1, "vaarg1\n");
 249     dprintf1(1, "vaarg1=%d\n", 2);
 250     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 251
 252     /* gcc extension */
 253     printf("func='%s'\n", __FUNCTION__);
 254
 255     /* complicated macros in glibc */
 256     printf("INT64_MIN=%Ld\n", INT64_MIN);
 257     {
 258         int a;
 259         a = 1;
 260         glue(a+, +);
 261         printf("a=%d\n", a);
 262         glue(a <, <= 2);
 263         printf("a=%d\n", a);
 264     }
 265
 266     /* macro function with argument outside the macro string */
 267 #define MF_s MF_hello
 268 #define MF_hello(msg) printf("%s\n",msg)
 269
 270 #define MF_t printf("tralala\n"); MF_hello
 271
 272     MF_s("hi");
 273     MF_t("hi");
 274
 275     /* test macro substituion inside args (should not eat stream) */
 276     printf("qq=%d\n", qq(qq)(2));
 277
 278     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 279        null argument without a space. gcc 3.2 fixes that. */
 280
 281 #define qq1(x) 1
 282     printf("qq1=%d\n", qq1( ));
 283
 284     /* comment with stray handling *\
 285 /
 286        /* this is a valid *\/ comment */
 287        /* this is a valid comment *\*/
 288     //  this is a valid\
 289 comment
 290
 291     /* test function macro substitution when the function name is
 292        substituted */
 293     TEST2();
 294
 295     /* And again when the name and parenthes are separated by a
 296        comment.  */
 297     TEST2 /* the comment */ ();
 298 }
 299
 300
 301 static void print_num(char *fn, int line, int num) {
 302     printf("fn %s, line %d, num %d\n", fn, line, num);
 303 }
 304
 305 void recursive_macro_test(void)
 306 {
 307
 308 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 309 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 310 #define STB_WEAK        2               /* Weak symbol */
 311 #define ELFW(type) ELF##32##_##type
 312     printf("%d\n", ELFW(ST_INFO)(STB_WEAK, ELFW(ST_TYPE)(123)));
 313
 314 #define WRAP(x) x
 315
 316 #define print_num(x) print_num(__FILE__,__LINE__,x)
 317     print_num(123);
 318     WRAP(print_num(123));
 319     WRAP(WRAP(print_num(123)));
 320
 321 static struct recursive_macro { int rm_field; } G;
 322 #define rm_field (G.rm_field)
 323     printf("rm_field = %d\n", rm_field);
 324     printf("rm_field = %d\n", WRAP(rm_field));
 325     WRAP((printf("rm_field = %d %d\n", rm_field, WRAP(rm_field))));
 326 }
 327
 328 int op(a,b)
 329 {
 330     return a / b;
 331 }
 332
 333 int ret(a)
 334 {
 335     if (a == 2)
 336         return 1;
 337     if (a == 3)
 338         return 2;
 339     return 0;
 340 }
 341
 342 void ps(const char *s)
 343 {
 344     int c;
 345     while (1) {
 346         c = *s;
 347         if (c == 0)
 348             break;
 349         printf("%c", c);
 350         s++;
 351     }
 352 }
 353
 354 const char foo1_string[] = "\
 355 bar\n\
 356 test\14\
 357 1";
 358
 359 void string_test()
 360 {
 361     unsigned int b;
 362     printf("string:\n");
 363     printf("\141\1423\143\n");/* dezdez test */
 364     printf("\x41\x42\x43\x3a\n");
 365     printf("c=%c\n", 'r');
 366     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 367     printf("foo1_string='%s'\n", foo1_string);
 368 #if 0
 369     printf("wstring=%S\n", L"abc");
 370     printf("wstring=%S\n", L"abc" L"def" "ghi");
 371     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 372     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 373 #endif
 374     ps("test\n");
 375     b = 32;
 376     while ((b = b + 1) < 96) {
 377         printf("%c", b);
 378     }
 379     printf("\n");
 380     printf("fib=%d\n", fib(33));
 381     b = 262144;
 382     while (b != 0x80000000) {
 383         num(b);
 384         b = b * 2;
 385     }
 386 }
 387
 388 void loop_test()
 389 {
 390     int i;
 391     i = 0;
 392     while (i < 10)
 393         printf("%d", i++);
 394     printf("\n");
 395     for(i = 0; i < 10;i++)
 396         printf("%d", i);
 397     printf("\n");
 398     i = 0;
 399     do {
 400         printf("%d", i++);
 401     } while (i < 10);
 402     printf("\n");
 403
 404     char count = 123;
 405     /* c99 for loop init test */
 406     for (size_t count = 1; count < 3; count++)
 407         printf("count=%d\n", count);
 408     printf("count = %d\n", count);
 409
 410     /* break/continue tests */
 411     i = 0;
 412     while (1) {
 413         if (i == 6)
 414             break;
 415         i++;
 416         if (i == 3)
 417             continue;
 418         printf("%d", i);
 419     }
 420     printf("\n");
 421
 422     /* break/continue tests */
 423     i = 0;
 424     do {
 425         if (i == 6)
 426             break;
 427         i++;
 428         if (i == 3)
 429             continue;
 430         printf("%d", i);
 431     } while(1);
 432     printf("\n");
 433
 434     for(i = 0;i < 10;i++) {
 435         if (i == 3)
 436             continue;
 437         printf("%d", i);
 438     }
 439     printf("\n");
 440 }
 441
 442 typedef int typedef_and_label;
 443
 444 void goto_test()
 445 {
 446     int i;
 447     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 448
 449     printf("goto:\n");
 450     i = 0;
 451     /* This needs to parse as label, not as start of decl.  */
 452  typedef_and_label:
 453  s_loop:
 454     if (i >= 10)
 455         goto s_end;
 456     printf("%d", i);
 457     i++;
 458     goto s_loop;
 459  s_end:
 460     printf("\n");
 461
 462     /* we also test computed gotos (GCC extension) */
 463     for(i=0;i<3;i++) {
 464         goto *label_table[i];
 465     label1:
 466         printf("label1\n");
 467         goto next;
 468     label2:
 469         printf("label2\n");
 470         goto next;
 471     label3:
 472         printf("label3\n");
 473     next: ;
 474     }
 475 }
 476
 477 enum {
 478     E0,
 479     E1 = 2,
 480     E2 = 4,
 481     E3,
 482     E4,
 483 };
 484
 485 enum test {
 486     E5 = 1000,
 487 };
 488
 489 void enum_test()
 490 {
 491     enum test b1;
 492     printf("enum:\n%d %d %d %d %d %d\n",
 493            E0, E1, E2, E3, E4, E5);
 494     b1 = 1;
 495     printf("b1=%d\n", b1);
 496 }
 497
 498 typedef int *my_ptr;
 499
 500 typedef int mytype1;
 501 typedef int mytype2;
 502
 503 void typedef_test()
 504 {
 505     my_ptr a;
 506     mytype1 mytype2;
 507     int b;
 508
 509     a = &b;
 510     *a = 1234;
 511     printf("typedef:\n");
 512     printf("a=%d\n", *a);
 513     mytype2 = 2;
 514     printf("mytype2=%d\n", mytype2);
 515 }
 516
 517 void forward_test()
 518 {
 519     printf("forward:\n");
 520     forward_ref();
 521     forward_ref();
 522 }
 523
 524
 525 void forward_ref(void)
 526 {
 527     printf("forward ok\n");
 528 }
 529
 530 typedef struct struct1 {
 531     int f1;
 532     int f2, f3;
 533     union union1 {
 534         int v1;
 535         int v2;
 536     } u;
 537     char str[3];
 538 } struct1;
 539
 540 struct struct2 {
 541     int a;
 542     char b;
 543 };
 544
 545 union union2 {
 546     int w1;
 547     int w2;
 548 };
 549
 550 struct struct1 st1, st2;
 551
 552 int main(int argc, char **argv)
 553 {
 554     string_test();
 555     expr_test();
 556     macro_test();
 557     recursive_macro_test();
 558     scope_test();
 559     forward_test();
 560     funcptr_test();
 561     loop_test();
 562     switch_test();
 563     goto_test();
 564     enum_test();
 565     typedef_test();
 566     struct_test();
 567     array_test();
 568     expr_ptr_test();
 569     bool_test();
 570     expr2_test();
 571     constant_expr_test();
 572     expr_cmp_test();
 573     char_short_test();
 574     init_test();
 575     compound_literal_test();
 576     kr_test();
 577     struct_assign_test();
 578     cast_test();
 579     bitfield_test();
 580     c99_bool_test();
 581     float_test();
 582     longlong_test();
 583     manyarg_test();
 584     stdarg_test();
 585     whitespace_test();
 586     relocation_test();
 587     old_style_function();
 588     alloca_test();
 589     c99_vla_test(5, 2);
 590     sizeof_test();
 591     typeof_test();
 592     statement_expr_test();
 593     local_label_test();
 594     asm_test();
 595     builtin_test();
 596     weak_test();
 597     global_data_test();
 598     cmp_comparison_test();
 599     math_cmp_test();
 600     callsave_test();
 601     return 0;
 602 }
 603
 604 int tab[3];
 605 int tab2[3][2];
 606
 607 int g;
 608
 609 void f1(g)
 610 {
 611     printf("g1=%d\n", g);
 612 }
 613
 614 void scope_test()
 615 {
 616     printf("scope:\n");
 617     g = 2;
 618     f1(1);
 619     printf("g2=%d\n", g);
 620     {
 621         int g;
 622         g = 3;
 623         printf("g3=%d\n", g);
 624         {
 625             int g;
 626             g = 4;
 627             printf("g4=%d\n", g);
 628         }
 629     }
 630     printf("g5=%d\n", g);
 631 }
 632
 633 void array_test()
 634 {
 635     int i, j, a[4];
 636
 637     printf("array:\n");
 638     printf("sizeof(a) = %d\n", sizeof(a));
 639     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 640 #ifdef C99_MACROS
 641     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 642 #endif
 643     printf("sizeof tab %d\n", sizeof(tab));
 644     printf("sizeof tab2 %d\n", sizeof tab2);
 645     tab[0] = 1;
 646     tab[1] = 2;
 647     tab[2] = 3;
 648     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 649     for(i=0;i<3;i++)
 650         for(j=0;j<2;j++)
 651             tab2[i][j] = 10 * i + j;
 652     for(i=0;i<3*2;i++) {
 653         printf(" %3d", ((int *)tab2)[i]);
 654     }
 655     printf("\n");
 656     printf("sizeof(size_t)=%d\n", sizeof(size_t));
 657     printf("sizeof(ptrdiff_t)=%d\n", sizeof(ptrdiff_t));
 658 }
 659
 660 void expr_test()
 661 {
 662     int a, b;
 663     a = 0;
 664     printf("%d\n", a += 1);
 665     printf("%d\n", a -= 2);
 666     printf("%d\n", a *= 31232132);
 667     printf("%d\n", a /= 4);
 668     printf("%d\n", a %= 20);
 669     printf("%d\n", a &= 6);
 670     printf("%d\n", a ^= 7);
 671     printf("%d\n", a |= 8);
 672     printf("%d\n", a >>= 3);
 673     printf("%d\n", a <<= 4);
 674
 675     a = 22321;
 676     b = -22321;
 677     printf("%d\n", a + 1);
 678     printf("%d\n", a - 2);
 679     printf("%d\n", a * 312);
 680     printf("%d\n", a / 4);
 681     printf("%d\n", b / 4);
 682     printf("%d\n", (unsigned)b / 4);
 683     printf("%d\n", a % 20);
 684     printf("%d\n", b % 20);
 685     printf("%d\n", (unsigned)b % 20);
 686     printf("%d\n", a & 6);
 687     printf("%d\n", a ^ 7);
 688     printf("%d\n", a | 8);
 689     printf("%d\n", a >> 3);
 690     printf("%d\n", b >> 3);
 691     printf("%d\n", (unsigned)b >> 3);
 692     printf("%d\n", a << 4);
 693     printf("%d\n", ~a);
 694     printf("%d\n", -a);
 695     printf("%d\n", +a);
 696
 697     printf("%d\n", 12 + 1);
 698     printf("%d\n", 12 - 2);
 699     printf("%d\n", 12 * 312);
 700     printf("%d\n", 12 / 4);
 701     printf("%d\n", 12 % 20);
 702     printf("%d\n", 12 & 6);
 703     printf("%d\n", 12 ^ 7);
 704     printf("%d\n", 12 | 8);
 705     printf("%d\n", 12 >> 2);
 706     printf("%d\n", 12 << 4);
 707     printf("%d\n", ~12);
 708     printf("%d\n", -12);
 709     printf("%d\n", +12);
 710     printf("%d %d %d %d\n",
 711            isid('a'),
 712            isid('g'),
 713            isid('T'),
 714            isid('('));
 715 }
 716
 717 int isid(int c)
 718 {
 719     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 720 }
 721
 722 /**********************/
 723
 724 int vstack[10], *vstack_ptr;
 725
 726 void vpush(int vt, int vc)
 727 {
 728     *vstack_ptr++ = vt;
 729     *vstack_ptr++ = vc;
 730 }
 731
 732 void vpop(int *ft, int *fc)
 733 {
 734     *fc = *--vstack_ptr;
 735     *ft = *--vstack_ptr;
 736 }
 737
 738 void expr2_test()
 739 {
 740     int a, b;
 741
 742     printf("expr2:\n");
 743     vstack_ptr = vstack;
 744     vpush(1432432, 2);
 745     vstack_ptr[-2] &= ~0xffffff80;
 746     vpop(&a, &b);
 747     printf("res= %d %d\n", a, b);
 748 }
 749
 750 void constant_expr_test()
 751 {
 752     int a;
 753     printf("constant_expr:\n");
 754     a = 3;
 755     printf("%d\n", a * 16);
 756     printf("%d\n", a * 1);
 757     printf("%d\n", a + 0);
 758 }
 759
 760 int tab4[10];
 761
 762 void expr_ptr_test()
 763 {
 764     int *p, *q;
 765     int i = -1;
 766
 767     printf("expr_ptr:\n");
 768     p = tab4;
 769     q = tab4 + 10;
 770     printf("diff=%d\n", q - p);
 771     p++;
 772     printf("inc=%d\n", p - tab4);
 773     p--;
 774     printf("dec=%d\n", p - tab4);
 775     ++p;
 776     printf("inc=%d\n", p - tab4);
 777     --p;
 778     printf("dec=%d\n", p - tab4);
 779     printf("add=%d\n", p + 3 - tab4);
 780     printf("add=%d\n", 3 + p - tab4);
 781
 782     /* check if 64bit support is ok */
 783     q = p = 0;
 784     q += i;
 785     printf("%p %p %ld\n", q, p, p-q);
 786     printf("%d %d %d %d %d %d\n",
 787            p == q, p != q, p < q, p <= q, p >= q, p > q);
 788     i = 0xf0000000;
 789     p += i;
 790     printf("%p %p %ld\n", q, p, p-q);
 791     printf("%d %d %d %d %d %d\n",
 792            p == q, p != q, p < q, p <= q, p >= q, p > q);
 793     p = (int *)((char *)p + 0xf0000000);
 794     printf("%p %p %ld\n", q, p, p-q);
 795     printf("%d %d %d %d %d %d\n",
 796            p == q, p != q, p < q, p <= q, p >= q, p > q);
 797     p += 0xf0000000;
 798     printf("%p %p %ld\n", q, p, p-q);
 799     printf("%d %d %d %d %d %d\n",
 800            p == q, p != q, p < q, p <= q, p >= q, p > q);
 801     {
 802         struct size12 {
 803             int i, j, k;
 804         };
 805         struct size12 s[2], *sp = s;
 806         int i, j;
 807         sp->i = 42;
 808         sp++;
 809         j = -1;
 810         printf("%d\n", sp[j].i);
 811     }
 812 }
 813
 814 void expr_cmp_test()
 815 {
 816     int a, b;
 817     printf("constant_expr:\n");
 818     a = -1;
 819     b = 1;
 820     printf("%d\n", a == a);
 821     printf("%d\n", a != a);
 822
 823     printf("%d\n", a < b);
 824     printf("%d\n", a <= b);
 825     printf("%d\n", a <= a);
 826     printf("%d\n", b >= a);
 827     printf("%d\n", a >= a);
 828     printf("%d\n", b > a);
 829
 830     printf("%d\n", (unsigned)a < b);
 831     printf("%d\n", (unsigned)a <= b);
 832     printf("%d\n", (unsigned)a <= a);
 833     printf("%d\n", (unsigned)b >= a);
 834     printf("%d\n", (unsigned)a >= a);
 835     printf("%d\n", (unsigned)b > a);
 836 }
 837
 838 struct empty {
 839 };
 840
 841 struct aligntest1 {
 842     char a[10];
 843 };
 844
 845 struct aligntest2 {
 846     int a;
 847     char b[10];
 848 };
 849
 850 struct aligntest3 {
 851     double a, b;
 852 };
 853
 854 struct aligntest4 {
 855     double a[0];
 856 };
 857
 858 void struct_test()
 859 {
 860     struct1 *s;
 861     union union2 u;
 862
 863     printf("struct:\n");
 864     printf("sizes: %d %d %d %d\n",
 865            sizeof(struct struct1),
 866            sizeof(struct struct2),
 867            sizeof(union union1),
 868            sizeof(union union2));
 869     st1.f1 = 1;
 870     st1.f2 = 2;
 871     st1.f3 = 3;
 872     printf("st1: %d %d %d\n",
 873            st1.f1, st1.f2, st1.f3);
 874     st1.u.v1 = 1;
 875     st1.u.v2 = 2;
 876     printf("union1: %d\n", st1.u.v1);
 877     u.w1 = 1;
 878     u.w2 = 2;
 879     printf("union2: %d\n", u.w1);
 880     s = &st2;
 881     s->f1 = 3;
 882     s->f2 = 2;
 883     s->f3 = 1;
 884     printf("st2: %d %d %d\n",
 885            s->f1, s->f2, s->f3);
 886     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 887
 888     /* align / size tests */
 889     printf("aligntest1 sizeof=%d alignof=%d\n",
 890            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 891     printf("aligntest2 sizeof=%d alignof=%d\n",
 892            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 893     printf("aligntest3 sizeof=%d alignof=%d\n",
 894            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 895     printf("aligntest4 sizeof=%d alignof=%d\n",
 896            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 897
 898     /* empty structures (GCC extension) */
 899     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 900     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 901 }
 902
 903 /* XXX: depend on endianness */
 904 void char_short_test()
 905 {
 906     int var1, var2;
 907
 908     printf("char_short:\n");
 909
 910     var1 = 0x01020304;
 911     var2 = 0xfffefdfc;
 912     printf("s8=%d %d\n",
 913            *(char *)&var1, *(char *)&var2);
 914     printf("u8=%d %d\n",
 915            *(unsigned char *)&var1, *(unsigned char *)&var2);
 916     printf("s16=%d %d\n",
 917            *(short *)&var1, *(short *)&var2);
 918     printf("u16=%d %d\n",
 919            *(unsigned short *)&var1, *(unsigned short *)&var2);
 920     printf("s32=%d %d\n",
 921            *(int *)&var1, *(int *)&var2);
 922     printf("u32=%d %d\n",
 923            *(unsigned int *)&var1, *(unsigned int *)&var2);
 924     *(char *)&var1 = 0x08;
 925     printf("var1=%x\n", var1);
 926     *(short *)&var1 = 0x0809;
 927     printf("var1=%x\n", var1);
 928     *(int *)&var1 = 0x08090a0b;
 929     printf("var1=%x\n", var1);
 930 }
 931
 932 /******************/
 933
 934 typedef struct Sym {
 935     int v;
 936     int t;
 937     int c;
 938     struct Sym *next;
 939     struct Sym *prev;
 940 } Sym;
 941
 942 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 943 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 944
 945 static int toupper1(int a)
 946 {
 947     return TOUPPER(a);
 948 }
 949
 950 void bool_test()
 951 {
 952     int *s, a, b, t, f, i;
 953
 954     a = 0;
 955     s = (void*)0;
 956     printf("!s=%d\n", !s);
 957
 958     if (!s || !s[0])
 959         a = 1;
 960     printf("a=%d\n", a);
 961
 962     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 963     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 964     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 965 #if 1 && 1
 966     printf("a1\n");
 967 #endif
 968 #if 1 || 0
 969     printf("a2\n");
 970 #endif
 971 #if 1 ? 0 : 1
 972     printf("a3\n");
 973 #endif
 974 #if 0 ? 0 : 1
 975     printf("a4\n");
 976 #endif
 977
 978     a = 4;
 979     printf("b=%d\n", a + (0 ? 1 : a / 2));
 980
 981     /* test register spilling */
 982     a = 10;
 983     b = 10;
 984     a = (a + b) * ((a < b) ?
 985                    ((b - a) * (a - b)): a + b);
 986     printf("a=%d\n", a);
 987
 988     /* test complex || or && expressions */
 989     t = 1;
 990     f = 0;
 991     a = 32;
 992     printf("exp=%d\n", f == (32 <= a && a <= 3));
 993     printf("r=%d\n", (t || f) + (t && f));
 994
 995     /* test ? : cast */
 996     {
 997         int aspect_on;
 998         int aspect_native = 65536;
 999         double bfu_aspect = 1.0;
1000         int aspect;
1001         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
1002             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
1003             printf("aspect=%d\n", aspect);
1004         }
1005     }
1006
1007     /* test ? : GCC extension */
1008     {
1009         static int v1 = 34 ? : -1; /* constant case */
1010         static int v2 = 0 ? : -1; /* constant case */
1011         int a = 30;
1012
1013         printf("%d %d\n", v1, v2);
1014         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
1015     }
1016
1017     /* again complex expression */
1018     for(i=0;i<256;i++) {
1019         if (toupper1 (i) != TOUPPER (i))
1020             printf("error %d\n", i);
1021     }
1022 }
1023
1024 /* GCC accepts that */
1025 static int tab_reinit[];
1026 static int tab_reinit[10];
1027
1028 //int cinit1; /* a global variable can be defined several times without error ! */
1029 int cinit1;
1030 int cinit1;
1031 int cinit1 = 0;
1032 int *cinit2 = (int []){3, 2, 1};
1033
1034 void compound_literal_test(void)
1035 {
1036     int *p, i;
1037     char *q, *q3;
1038
1039     printf("compound_test:\n");
1040
1041     p = (int []){1, 2, 3};
1042     for(i=0;i<3;i++)
1043         printf(" %d", p[i]);
1044     printf("\n");
1045
1046     for(i=0;i<3;i++)
1047         printf("%d", cinit2[i]);
1048     printf("\n");
1049
1050     q = "tralala1";
1051     printf("q1=%s\n", q);
1052
1053     q = (char *){ "tralala2" };
1054     printf("q2=%s\n", q);
1055
1056     q3 = (char *){ q };
1057     printf("q3=%s\n", q3);
1058
1059     q = (char []){ "tralala3" };
1060     printf("q4=%s\n", q);
1061
1062 #ifdef ALL_ISOC99
1063     p = (int []){1, 2, cinit1 + 3};
1064     for(i=0;i<3;i++)
1065         printf(" %d", p[i]);
1066     printf("\n");
1067
1068     for(i=0;i<3;i++) {
1069         p = (int []){1, 2, 4 + i};
1070         printf("%d %d %d\n",
1071                p[0],
1072                p[1],
1073                p[2]);
1074     }
1075 #endif
1076 }
1077
1078 /* K & R protos */
1079
1080 kr_func1(a, b)
1081 {
1082     return a + b;
1083 }
1084
1085 int kr_func2(a, b)
1086 {
1087     return a + b;
1088 }
1089
1090 kr_test()
1091 {
1092     printf("kr_test:\n");
1093     printf("func1=%d\n", kr_func1(3, 4));
1094     printf("func2=%d\n", kr_func2(3, 4));
1095     return 0;
1096 }
1097
1098 void num(int n)
1099 {
1100     char *tab, *p;
1101     tab = (char*)malloc(20);
1102     p = tab;
1103     while (1) {
1104         *p = 48 + (n % 10);
1105         p++;
1106         n = n / 10;
1107         if (n == 0)
1108             break;
1109     }
1110     while (p != tab) {
1111         p--;
1112         printf("%c", *p);
1113     }
1114     printf("\n");
1115     free(tab);
1116 }
1117
1118 /* structure assignment tests */
1119 struct structa1 {
1120     int f1;
1121     char f2;
1122 };
1123
1124 struct structa1 ssta1;
1125
1126 void struct_assign_test1(struct structa1 s1, int t, float f)
1127 {
1128     printf("%d %d %d %f\n", s1.f1, s1.f2, t, f);
1129 }
1130
1131 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1132 {
1133     s1.f1 += t;
1134     s1.f2 -= t;
1135     return s1;
1136 }
1137
1138 void struct_assign_test(void)
1139 {
1140     struct S {
1141       struct structa1 lsta1, lsta2;
1142       int i;
1143     } s, *ps;
1144
1145     ps = &s;
1146     ps->i = 4;
1147 #if 0
1148     printf("struct_assign_test:\n");
1149
1150     s.lsta1.f1 = 1;
1151     s.lsta1.f2 = 2;
1152     printf("%d %d\n", s.lsta1.f1, s.lsta1.f2);
1153     s.lsta2 = s.lsta1;
1154     printf("%d %d\n", s.lsta2.f1, s.lsta2.f2);
1155 #else
1156     s.lsta2.f1 = 1;
1157     s.lsta2.f2 = 2;
1158 #endif
1159     struct_assign_test1(ps->lsta2, 3, 4.5);
1160
1161     printf("before call: %d %d\n", s.lsta2.f1, s.lsta2.f2);
1162     ps->lsta2 = struct_assign_test2(ps->lsta2, ps->i);
1163     printf("after call: %d %d\n", ps->lsta2.f1, ps->lsta2.f2);
1164
1165     static struct {
1166         void (*elem)();
1167     } t[] = {
1168         /* XXX: we should allow this even without braces */
1169         { struct_assign_test }
1170     };
1171     printf("%d\n", struct_assign_test == t[0].elem);
1172 }
1173
1174 /* casts to short/char */
1175
1176 void cast1(char a, short b, unsigned char c, unsigned short d)
1177 {
1178     printf("%d %d %d %d\n", a, b, c, d);
1179 }
1180
1181 char bcast;
1182 short scast;
1183
1184 void cast_test()
1185 {
1186     int a;
1187     char c;
1188     char tab[10];
1189     unsigned b,d;
1190     short s;
1191     char *p = NULL;
1192     p -= 0x700000000042;
1193
1194     printf("cast_test:\n");
1195     a = 0xfffff;
1196     cast1(a, a, a, a);
1197     a = 0xffffe;
1198     printf("%d %d %d %d\n",
1199            (char)(a + 1),
1200            (short)(a + 1),
1201            (unsigned char)(a + 1),
1202            (unsigned short)(a + 1));
1203     printf("%d %d %d %d\n",
1204            (char)0xfffff,
1205            (short)0xfffff,
1206            (unsigned char)0xfffff,
1207            (unsigned short)0xfffff);
1208
1209     a = (bcast = 128) + 1;
1210     printf("%d\n", a);
1211     a = (scast = 65536) + 1;
1212     printf("%d\n", a);
1213
1214     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1215
1216     /* test cast from unsigned to signed short to int */
1217     b = 0xf000;
1218     d = (short)b;
1219     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1220     b = 0xf0f0;
1221     d = (char)b;
1222     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1223
1224     /* test implicit int casting for array accesses */
1225     c = 0;
1226     tab[1] = 2;
1227     tab[c] = 1;
1228     printf("%d %d\n", tab[0], tab[1]);
1229
1230     /* test implicit casting on some operators */
1231     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1232     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1233     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1234
1235     /* from pointer to integer types */
1236     printf("%d %d %ld %ld %lld %lld\n",
1237            (int)p, (unsigned int)p,
1238            (long)p, (unsigned long)p,
1239            (long long)p, (unsigned long long)p);
1240
1241     /* from integers to pointers */
1242     printf("%p %p %p %p\n",
1243            (void *)a, (void *)b, (void *)c, (void *)d);
1244 }
1245
1246 /* initializers tests */
1247 struct structinit1 {
1248     int f1;
1249     char f2;
1250     short f3;
1251     int farray[3];
1252 };
1253
1254 int sinit1 = 2;
1255 int sinit2 = { 3 };
1256 int sinit3[3] = { 1, 2, {{3}}, };
1257 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1258 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1259 int sinit6[] = { 1, 2, 3 };
1260 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1261 char sinit8[] = "hello" "trala";
1262
1263 struct structinit1 sinit9 = { 1, 2, 3 };
1264 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1265 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1266 #ifdef ALL_ISOC99
1267                                .farray[0] = 10,
1268                                .farray[1] = 11,
1269                                .farray[2] = 12,
1270 #endif
1271 };
1272
1273 char *sinit12 = "hello world";
1274 char *sinit13[] = {
1275     "test1",
1276     "test2",
1277     "test3",
1278 };
1279 char sinit14[10] = { "abc" };
1280 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1281
1282 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1283
1284 struct bar {
1285         char *s;
1286         int len;
1287 } sinit17[] = {
1288         "a1", 4,
1289         "a2", 1
1290 };
1291
1292 int sinit18[10] = {
1293     [2 ... 5] = 20,
1294     2,
1295     [8] = 10,
1296 };
1297
1298 struct complexinit0 {
1299     int a;
1300     int b;
1301 };
1302
1303 struct complexinit {
1304     int a;
1305     const struct complexinit0 *b;
1306 };
1307
1308 const static struct complexinit cix[] = {
1309     [0] = {
1310         .a = 2000,
1311         .b = (const struct complexinit0[]) {
1312                 { 2001, 2002 },
1313                 { 2003, 2003 },
1314                 {}
1315         }
1316     }
1317 };
1318
1319 struct complexinit2 {
1320         int a;
1321         int b[];
1322 };
1323
1324 struct complexinit2 cix20;
1325
1326 struct complexinit2 cix21 = {
1327         .a = 3000,
1328         .b = { 3001, 3002, 3003 }
1329 };
1330
1331 struct complexinit2 cix22 = {
1332         .a = 4000,
1333         .b = { 4001, 4002, 4003, 4004, 4005, 4006 }
1334 };
1335
1336 void init_test(void)
1337 {
1338     int linit1 = 2;
1339     int linit2 = { 3 };
1340     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1341     int linit6[] = { 1, 2, 3 };
1342     int i, j;
1343     char linit8[] = "hello" "trala";
1344     int linit12[10] = { 1, 2 };
1345     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1346     char linit14[10] = "abc";
1347     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1348     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1349     int linit17 = sizeof(linit17);
1350
1351     printf("init_test:\n");
1352
1353     printf("sinit1=%d\n", sinit1);
1354     printf("sinit2=%d\n", sinit2);
1355     printf("sinit3=%d %d %d %d\n",
1356            sizeof(sinit3),
1357            sinit3[0],
1358            sinit3[1],
1359            sinit3[2]
1360            );
1361     printf("sinit6=%d\n", sizeof(sinit6));
1362     printf("sinit7=%d %d %d %d\n",
1363            sizeof(sinit7),
1364            sinit7[0],
1365            sinit7[1],
1366            sinit7[2]
1367            );
1368     printf("sinit8=%s\n", sinit8);
1369     printf("sinit9=%d %d %d\n",
1370            sinit9.f1,
1371            sinit9.f2,
1372            sinit9.f3
1373            );
1374     printf("sinit10=%d %d %d\n",
1375            sinit10.f1,
1376            sinit10.f2,
1377            sinit10.f3
1378            );
1379     printf("sinit11=%d %d %d %d %d %d\n",
1380            sinit11.f1,
1381            sinit11.f2,
1382            sinit11.f3,
1383            sinit11.farray[0],
1384            sinit11.farray[1],
1385            sinit11.farray[2]
1386            );
1387
1388     for(i=0;i<3;i++)
1389         for(j=0;j<2;j++)
1390             printf("[%d][%d] = %d %d %d\n",
1391                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1392     printf("linit1=%d\n", linit1);
1393     printf("linit2=%d\n", linit2);
1394     printf("linit6=%d\n", sizeof(linit6));
1395     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1396
1397     printf("sinit12=%s\n", sinit12);
1398     printf("sinit13=%d %s %s %s\n",
1399            sizeof(sinit13),
1400            sinit13[0],
1401            sinit13[1],
1402            sinit13[2]);
1403     printf("sinit14=%s\n", sinit14);
1404
1405     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1406     printf("\n");
1407     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1408     printf("\n");
1409     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1410     printf("\n");
1411     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1412     printf("\n");
1413     printf("%d %d %d %d\n",
1414            linit16.a1,
1415            linit16.a2,
1416            linit16.a3,
1417            linit16.a4);
1418     /* test that initialisation is done after variable declare */
1419     printf("linit17=%d\n", linit17);
1420     printf("sinit15=%d\n", sinit15[0]);
1421     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1422     printf("sinit17=%s %d %s %d\n",
1423            sinit17[0].s, sinit17[0].len,
1424            sinit17[1].s, sinit17[1].len);
1425     for(i=0;i<10;i++)
1426         printf("%x ", sinit18[i]);
1427     printf("\n");
1428     /* complex init check */
1429     printf("cix: %d %d %d %d %d %d %d\n",
1430         cix[0].a,
1431         cix[0].b[0].a, cix[0].b[0].b,
1432         cix[0].b[1].a, cix[0].b[1].b,
1433         cix[0].b[2].a, cix[0].b[2].b);
1434     printf("cix2: %d %d\n", cix21.b[2], cix22.b[5]);
1435     printf("sizeof cix20 %d, cix21 %d, sizeof cix22 %d\n", sizeof cix20, sizeof cix21, sizeof cix22);
1436 }
1437
1438
1439 void switch_test()
1440 {
1441     int i;
1442
1443     for(i=0;i<15;i++) {
1444         switch(i) {
1445         case 0:
1446         case 1:
1447             printf("a");
1448             break;
1449         default:
1450             printf("%d", i);
1451             break;
1452         case 8 ... 12:
1453             printf("c");
1454             break;
1455         case 3:
1456             printf("b");
1457             break;
1458         }
1459     }
1460     printf("\n");
1461 }
1462
1463 /* ISOC99 _Bool type */
1464 void c99_bool_test(void)
1465 {
1466 #ifdef BOOL_ISOC99
1467     int a;
1468     _Bool b;
1469
1470     printf("bool_test:\n");
1471     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1472     a = 3;
1473     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1474     b = 3;
1475     printf("b = %d\n", b);
1476     b++;
1477     printf("b = %d\n", b);
1478 #endif
1479 }
1480
1481 void bitfield_test(void)
1482 {
1483     int a;
1484     short sa;
1485     unsigned char ca;
1486     struct sbf1 {
1487         int f1 : 3;
1488         int : 2;
1489         int f2 : 1;
1490         int : 0;
1491         int f3 : 5;
1492         int f4 : 7;
1493         unsigned int f5 : 7;
1494     } st1;
1495     printf("bitfield_test:");
1496     printf("sizeof(st1) = %d\n", sizeof(st1));
1497
1498     st1.f1 = 3;
1499     st1.f2 = 1;
1500     st1.f3 = 15;
1501     a = 120;
1502     st1.f4 = a;
1503     st1.f5 = a;
1504     st1.f5++;
1505     printf("%d %d %d %d %d\n",
1506            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1507     sa = st1.f5;
1508     ca = st1.f5;
1509     printf("%d %d\n", sa, ca);
1510
1511     st1.f1 = 7;
1512     if (st1.f1 == -1)
1513         printf("st1.f1 == -1\n");
1514     else
1515         printf("st1.f1 != -1\n");
1516     if (st1.f2 == -1)
1517         printf("st1.f2 == -1\n");
1518     else
1519         printf("st1.f2 != -1\n");
1520
1521     /* bit sizes below must be bigger than 32 since GCC doesn't allow
1522        long-long bitfields whose size is not bigger than int */
1523     struct sbf2 {
1524         long long f1 : 45;
1525         long long : 2;
1526         long long f2 : 35;
1527         unsigned long long f3 : 38;
1528     } st2;
1529     st2.f1 = 0x123456789ULL;
1530     a = 120;
1531     st2.f2 = (long long)a << 25;
1532     st2.f3 = a;
1533     st2.f2++;
1534     printf("%lld %lld %lld\n", st2.f1, st2.f2, st2.f3);
1535 }
1536
1537 #ifdef __x86_64__
1538 #define FLOAT_FMT "%f\n"
1539 #else
1540 /* x86's float isn't compatible with GCC */
1541 #define FLOAT_FMT "%.5f\n"
1542 #endif
1543
1544 /* declare strto* functions as they are C99 */
1545 double strtod(const char *nptr, char **endptr);
1546 float strtof(const char *nptr, char **endptr);
1547 long double strtold(const char *nptr, char **endptr);
1548
1549 #define FTEST(prefix, type, fmt)\
1550 void prefix ## cmp(type a, type b)\
1551 {\
1552     printf("%d %d %d %d %d %d\n",\
1553            a == b,\
1554            a != b,\
1555            a < b,\
1556            a > b,\
1557            a >= b,\
1558            a <= b);\
1559     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1560            a,\
1561            b,\
1562            a + b,\
1563            a - b,\
1564            a * b,\
1565            a / b,\
1566            -a);\
1567     printf(fmt "\n", ++a);\
1568     printf(fmt "\n", a++);\
1569     printf(fmt "\n", a);\
1570     b = 0;\
1571     printf("%d %d\n", !a, !b);\
1572 }\
1573 void prefix ## fcast(type a)\
1574 {\
1575     float fa;\
1576     double da;\
1577     long double la;\
1578     int ia;\
1579     unsigned int ua;\
1580     type b;\
1581     fa = a;\
1582     da = a;\
1583     la = a;\
1584     printf("ftof: %f %f %Lf\n", fa, da, la);\
1585     ia = (int)a;\
1586     ua = (unsigned int)a;\
1587     printf("ftoi: %d %u\n", ia, ua);\
1588     ia = -1234;\
1589     ua = 0x81234500;\
1590     b = ia;\
1591     printf("itof: " fmt "\n", b);\
1592     b = ua;\
1593     printf("utof: " fmt "\n", b);\
1594 }\
1595 \
1596 float prefix ## retf(type a) { return a; }\
1597 double prefix ## retd(type a) { return a; }\
1598 long double prefix ## retld(type a) { return a; }\
1599 \
1600 void prefix ## call(void)\
1601 {\
1602     printf("float: " FLOAT_FMT, prefix ## retf(42.123456789));\
1603     printf("double: %f\n", prefix ## retd(42.123456789));\
1604     printf("long double: %Lf\n", prefix ## retld(42.123456789));\
1605     printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
1606 }\
1607 \
1608 void prefix ## test(void)\
1609 {\
1610     printf("testing '%s'\n", #type);\
1611     prefix ## cmp(1, 2.5);\
1612     prefix ## cmp(2, 1.5);\
1613     prefix ## cmp(1, 1);\
1614     prefix ## fcast(234.6);\
1615     prefix ## fcast(-2334.6);\
1616     prefix ## call();\
1617 }
1618
1619 FTEST(f, float, "%f")
1620 FTEST(d, double, "%f")
1621 FTEST(ld, long double, "%Lf")
1622
1623 double ftab1[3] = { 1.2, 3.4, -5.6 };
1624
1625
1626 void float_test(void)
1627 {
1628     float fa, fb;
1629     double da, db;
1630     int a;
1631     unsigned int b;
1632
1633     printf("float_test:\n");
1634     printf("sizeof(float) = %d\n", sizeof(float));
1635     printf("sizeof(double) = %d\n", sizeof(double));
1636     printf("sizeof(long double) = %d\n", sizeof(long double));
1637     ftest();
1638     dtest();
1639     ldtest();
1640     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1641     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1642     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1643     da = 123;
1644     printf("da=%f\n", da);
1645     fa = 123;
1646     printf("fa=%f\n", fa);
1647     a = 4000000000;
1648     da = a;
1649     printf("da = %f\n", da);
1650     b = 4000000000;
1651     db = b;
1652     printf("db = %f\n", db);
1653 }
1654
1655 int fib(int n)
1656 {
1657     if (n <= 2)
1658         return 1;
1659     else
1660         return fib(n-1) + fib(n-2);
1661 }
1662
1663 void funcptr_test()
1664 {
1665     void (*func)(int);
1666     int a;
1667     struct {
1668         int dummy;
1669         void (*func)(int);
1670     } st1;
1671
1672     printf("funcptr:\n");
1673     func = &num;
1674     (*func)(12345);
1675     func = num;
1676     a = 1;
1677     a = 1;
1678     func(12345);
1679     /* more complicated pointer computation */
1680     st1.func = num;
1681     st1.func(12346);
1682     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1683     printf("sizeof2 = %d\n", sizeof funcptr_test);
1684     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1685     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1686 }
1687
1688 void lloptest(long long a, long long b)
1689 {
1690     unsigned long long ua, ub;
1691
1692     ua = a;
1693     ub = b;
1694     /* arith */
1695     printf("arith: %Ld %Ld %Ld\n",
1696            a + b,
1697            a - b,
1698            a * b);
1699
1700     if (b != 0) {
1701         printf("arith1: %Ld %Ld\n",
1702            a / b,
1703            a % b);
1704     }
1705
1706     /* binary */
1707     printf("bin: %Ld %Ld %Ld\n",
1708            a & b,
1709            a | b,
1710            a ^ b);
1711
1712     /* tests */
1713     printf("test: %d %d %d %d %d %d\n",
1714            a == b,
1715            a != b,
1716            a < b,
1717            a > b,
1718            a >= b,
1719            a <= b);
1720
1721     printf("utest: %d %d %d %d %d %d\n",
1722            ua == ub,
1723            ua != ub,
1724            ua < ub,
1725            ua > ub,
1726            ua >= ub,
1727            ua <= ub);
1728
1729     /* arith2 */
1730     a++;
1731     b++;
1732     printf("arith2: %Ld %Ld\n", a, b);
1733     printf("arith2: %Ld %Ld\n", a++, b++);
1734     printf("arith2: %Ld %Ld\n", --a, --b);
1735     printf("arith2: %Ld %Ld\n", a, b);
1736     b = ub = 0;
1737     printf("not: %d %d %d %d\n", !a, !ua, !b, !ub);
1738 }
1739
1740 void llshift(long long a, int b)
1741 {
1742     printf("shift: %Ld %Ld %Ld\n",
1743            (unsigned long long)a >> b,
1744            a >> b,
1745            a << b);
1746     printf("shiftc: %Ld %Ld %Ld\n",
1747            (unsigned long long)a >> 3,
1748            a >> 3,
1749            a << 3);
1750     printf("shiftc: %Ld %Ld %Ld\n",
1751            (unsigned long long)a >> 35,
1752            a >> 35,
1753            a << 35);
1754 }
1755
1756 void llfloat(void)
1757 {
1758     float fa;
1759     double da;
1760     long double lda;
1761     long long la, lb, lc;
1762     unsigned long long ula, ulb, ulc;
1763     la = 0x12345678;
1764     ula = 0x72345678;
1765     la = (la << 20) | 0x12345;
1766     ula = ula << 33;
1767     printf("la=%Ld ula=%Lu\n", la, ula);
1768
1769     fa = la;
1770     da = la;
1771     lda = la;
1772     printf("lltof: %f %f %Lf\n", fa, da, lda);
1773
1774     la = fa;
1775     lb = da;
1776     lc = lda;
1777     printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
1778
1779     fa = ula;
1780     da = ula;
1781     lda = ula;
1782     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1783
1784     ula = fa;
1785     ulb = da;
1786     ulc = lda;
1787     printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
1788 }
1789
1790 long long llfunc1(int a)
1791 {
1792     return a * 2;
1793 }
1794
1795 struct S {
1796     int id;
1797     char item;
1798 };
1799
1800 long long int value(struct S *v)
1801 {
1802     return ((long long int)v->item);
1803 }
1804
1805 void longlong_test(void)
1806 {
1807     long long a, b, c;
1808     int ia;
1809     unsigned int ua;
1810     printf("longlong_test:\n");
1811     printf("sizeof(long long) = %d\n", sizeof(long long));
1812     ia = -1;
1813     ua = -2;
1814     a = ia;
1815     b = ua;
1816     printf("%Ld %Ld\n", a, b);
1817     printf("%Ld %Ld %Ld %Lx\n",
1818            (long long)1,
1819            (long long)-2,
1820            1LL,
1821            0x1234567812345679);
1822     a = llfunc1(-3);
1823     printf("%Ld\n", a);
1824
1825     lloptest(1000, 23);
1826     lloptest(0xff, 0x1234);
1827     b = 0x72345678 << 10;
1828     lloptest(-3, b);
1829     llshift(0x123, 5);
1830     llshift(-23, 5);
1831     b = 0x72345678LL << 10;
1832     llshift(b, 47);
1833
1834     llfloat();
1835 #if 1
1836     b = 0x12345678;
1837     a = -1;
1838     c = a + b;
1839     printf("%Lx\n", c);
1840 #endif
1841
1842     /* long long reg spill test */
1843     {
1844           struct S a;
1845
1846           a.item = 3;
1847           printf("%lld\n", value(&a));
1848     }
1849     lloptest(0x80000000, 0);
1850
1851     /* another long long spill test */
1852     {
1853         long long *p, v;
1854         v = 1;
1855         p = &v;
1856         p[0]++;
1857         printf("%lld\n", *p);
1858     }
1859
1860     a = 68719476720LL;
1861     b = 4294967295LL;
1862     printf("%d %d %d %d\n", a > b, a < b, a >= b, a <= b);
1863
1864     printf("%Ld\n", 0x123456789LLU);
1865 }
1866
1867 void manyarg_test(void)
1868 {
1869     long double ld = 1234567891234LL;
1870     printf("manyarg_test:\n");
1871     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1872            1, 2, 3, 4, 5, 6, 7, 8,
1873            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1874     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1875            "%Ld %Ld %f %f\n",
1876            1, 2, 3, 4, 5, 6, 7, 8,
1877            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1878            1234567891234LL, 987654321986LL,
1879            42.0, 43.0);
1880     printf("%Lf %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1881            "%Ld %Ld %f %f\n",
1882            ld, 1, 2, 3, 4, 5, 6, 7, 8,
1883            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1884            1234567891234LL, 987654321986LL,
1885            42.0, 43.0);
1886     /* XXX: known bug of x86-64 */
1887 #ifndef __x86_64__
1888     printf("%d %d %d %d %d %d %d %d %Lf\n",
1889            1, 2, 3, 4, 5, 6, 7, 8, ld);
1890     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1891            "%Ld %Ld %f %f %Lf\n",
1892            1, 2, 3, 4, 5, 6, 7, 8,
1893            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1894            1234567891234LL, 987654321986LL,
1895            42.0, 43.0, ld);
1896     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1897            "%Lf %Ld %Ld %f %f %Lf\n",
1898            1, 2, 3, 4, 5, 6, 7, 8,
1899            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1900            ld, 1234567891234LL, 987654321986LL,
1901            42.0, 43.0, ld);
1902 #endif
1903 }
1904
1905 void vprintf1(const char *fmt, ...)
1906 {
1907     va_list ap, aq;
1908     const char *p;
1909     int c, i;
1910     double d;
1911     long long ll;
1912     long double ld;
1913
1914     va_start(aq, fmt);
1915     va_copy(ap, aq);
1916
1917     p = fmt;
1918     for(;;) {
1919         c = *p;
1920         if (c == '\0')
1921             break;
1922         p++;
1923         if (c == '%') {
1924             c = *p;
1925             switch(c) {
1926             case '\0':
1927                 goto the_end;
1928             case 'd':
1929                 i = va_arg(ap, int);
1930                 printf("%d", i);
1931                 break;
1932             case 'f':
1933                 d = va_arg(ap, double);
1934                 printf("%f", d);
1935                 break;
1936             case 'l':
1937                 ll = va_arg(ap, long long);
1938                 printf("%Ld", ll);
1939                 break;
1940             case 'F':
1941                 ld = va_arg(ap, long double);
1942                 printf("%Lf", ld);
1943                 break;
1944             }
1945             p++;
1946         } else {
1947             putchar(c);
1948         }
1949     }
1950  the_end:
1951     va_end(aq);
1952     va_end(ap);
1953 }
1954
1955 struct myspace {
1956     short int profile;
1957 };
1958
1959 void stdarg_for_struct(struct myspace bob, ...)
1960 {
1961     struct myspace george, bill;
1962     va_list ap;
1963     short int validate;
1964
1965     va_start(ap, bob);
1966     bill     = va_arg(ap, struct myspace);
1967     george   = va_arg(ap, struct myspace);
1968     validate = va_arg(ap, int);
1969     printf("stdarg_for_struct: %d %d %d %d\n",
1970            bob.profile, bill.profile, george.profile, validate);
1971     va_end(ap);
1972 }
1973
1974 void stdarg_test(void)
1975 {
1976     long double ld = 1234567891234LL;
1977     struct myspace bob;
1978
1979     vprintf1("%d %d %d\n", 1, 2, 3);
1980     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
1981     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
1982     vprintf1("%F %F %F\n", 1.2L, 2.3L, 3.4L);
1983 #ifdef __x86_64__
1984     /* a bug of x86's TCC */
1985     vprintf1("%d %f %l %F %d %f %l %F\n",
1986              1, 1.2, 3L, 4.5L, 6, 7.8, 9L, 0.1L);
1987 #endif
1988     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f\n",
1989              1, 2, 3, 4, 5, 6, 7, 8,
1990              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8);
1991     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1992              1, 2, 3, 4, 5, 6, 7, 8,
1993              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1994     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1995              "%l %l %f %f\n",
1996              1, 2, 3, 4, 5, 6, 7, 8,
1997              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1998              1234567891234LL, 987654321986LL,
1999              42.0, 43.0);
2000     vprintf1("%F %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2001              "%l %l %f %f\n",
2002              ld, 1, 2, 3, 4, 5, 6, 7, 8,
2003              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2004              1234567891234LL, 987654321986LL,
2005              42.0, 43.0);
2006     vprintf1("%d %d %d %d %d %d %d %d %F\n",
2007              1, 2, 3, 4, 5, 6, 7, 8, ld);
2008     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2009              "%l %l %f %f %F\n",
2010              1, 2, 3, 4, 5, 6, 7, 8,
2011              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2012              1234567891234LL, 987654321986LL,
2013              42.0, 43.0, ld);
2014     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2015              "%F %l %l %f %f %F\n",
2016              1, 2, 3, 4, 5, 6, 7, 8,
2017              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2018              ld, 1234567891234LL, 987654321986LL,
2019              42.0, 43.0, ld);
2020
2021     bob.profile = 42;
2022     stdarg_for_struct(bob, bob, bob, bob.profile);
2023 }
2024
2025 void whitespace_test(void)
2026 {
2027     char *str;
2028
2029 \f\v
#if 1
2030     pri\
2031 ntf("whitspace:\n");\f\v
2032 #endif
2033     pf("N=%d\n", 2);
2034
2035 #ifdef CORRECT_CR_HANDLING
2036     pri\
2037 ntf("aaa=%d\n", 3);
2038 #endif
2039
2040     pri\
2041 \
2042 ntf("min=%d\n", 4);
2043
2044 #ifdef ACCEPT_CR_IN_STRINGS
2045     printf("len1=%d\n", strlen("
2046 "));
2047 #ifdef CORRECT_CR_HANDLING
2048     str = "
2049 ";
2050     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
2051 #endif
2052     printf("len1=%d\n", strlen("
a
2053 "));
2054 #endif /* ACCEPT_CR_IN_STRINGS */
2055 }
2056
2057 int reltab[3] = { 1, 2, 3 };
2058
2059 int *rel1 = &reltab[1];
2060 int *rel2 = &reltab[2];
2061
2062 void relocation_test(void)
2063 {
2064     printf("*rel1=%d\n", *rel1);
2065     printf("*rel2=%d\n", *rel2);
2066 }
2067
2068 void old_style_f(a,b,c)
2069      int a, b;
2070      double c;
2071 {
2072     printf("a=%d b=%d b=%f\n", a, b, c);
2073 }
2074
2075 void decl_func1(int cmpfn())
2076 {
2077     printf("cmpfn=%lx\n", (long)cmpfn);
2078 }
2079
2080 void decl_func2(cmpfn)
2081 int cmpfn();
2082 {
2083     printf("cmpfn=%lx\n", (long)cmpfn);
2084 }
2085
2086 void old_style_function(void)
2087 {
2088     old_style_f((void *)1, 2, 3.0);
2089     decl_func1(NULL);
2090     decl_func2(NULL);
2091 }
2092
2093 void alloca_test()
2094 {
2095 #if defined __i386__ || defined __x86_64__
2096     char *p = alloca(16);
2097     strcpy(p,"123456789012345");
2098     printf("alloca: p is %s\n", p);
2099     char *demo = "This is only a test.\n";
2100     /* Test alloca embedded in a larger expression */
2101     printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
2102 #endif
2103 }
2104
2105 void *bounds_checking_is_enabled()
2106 {
2107     char ca[10], *cp = ca-1;
2108     return (ca != cp + 1) ? cp : NULL;
2109 }
2110
2111 typedef int constant_negative_array_size_as_compile_time_assertion_idiom[(1 ? 2 : 0) - 1];
2112
2113 void c99_vla_test(int size1, int size2)
2114 {
2115 #if defined __i386__ || defined __x86_64__
2116     int size = size1 * size2;
2117     int tab1[size][2], tab2[10][2];
2118     void *tab1_ptr, *tab2_ptr, *bad_ptr;
2119
2120     /* "size" should have been 'captured' at tab1 declaration,
2121         so modifying it should have no effect on VLA behaviour. */
2122     size = size-1;
2123
2124     printf("Test C99 VLA 1 (sizeof): ");
2125     printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
2126     tab1_ptr = tab1;
2127     tab2_ptr = tab2;
2128     printf("Test C99 VLA 2 (ptrs substract): ");
2129     printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
2130     printf("Test C99 VLA 3 (ptr add): ");
2131     printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
2132     printf("Test C99 VLA 4 (ptr access): ");
2133     tab1[size1][1] = 42;
2134     printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
2135
2136     printf("Test C99 VLA 5 (bounds checking (might be disabled)): ");
2137     if (bad_ptr = bounds_checking_is_enabled()) {
2138         int *t1 = &tab1[size1 * size2 - 1][3];
2139         int *t2 = &tab2[9][3];
2140         printf("%s ", bad_ptr == t1 ? "PASSED" : "FAILED");
2141         printf("%s ", bad_ptr == t2 ? "PASSED" : "FAILED");
2142
2143         char*c1 = 1 + sizeof(tab1) + (char*)tab1;
2144         char*c2 = 1 + sizeof(tab2) + (char*)tab2;
2145         printf("%s ", bad_ptr == c1 ? "PASSED" : "FAILED");
2146         printf("%s ", bad_ptr == c2 ? "PASSED" : "FAILED");
2147
2148         int *i1 = tab1[-1];
2149         int *i2 = tab2[-1];
2150         printf("%s ", bad_ptr == i1 ? "PASSED" : "FAILED");
2151         printf("%s ", bad_ptr == i2 ? "PASSED" : "FAILED");
2152
2153         int *x1 = tab1[size1 * size2 + 1];
2154         int *x2 = tab2[10 + 1];
2155         printf("%s ", bad_ptr == x1 ? "PASSED" : "FAILED");
2156         printf("%s ", bad_ptr == x2 ? "PASSED" : "FAILED");
2157     } else {
2158         printf("PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED ");
2159     }
2160     printf("\n");
2161 #endif
2162 }
2163
2164 typedef __SIZE_TYPE__ uintptr_t;
2165
2166 void sizeof_test(void)
2167 {
2168     int a;
2169     int **ptr;
2170
2171     printf("sizeof(int) = %d\n", sizeof(int));
2172     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
2173     printf("sizeof(long) = %d\n", sizeof(long));
2174     printf("sizeof(unsigned long) = %d\n", sizeof(unsigned long));
2175     printf("sizeof(short) = %d\n", sizeof(short));
2176     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
2177     printf("sizeof(char) = %d\n", sizeof(char));
2178     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
2179     printf("sizeof(func) = %d\n", sizeof sizeof_test());
2180     a = 1;
2181     printf("sizeof(a++) = %d\n", sizeof a++);
2182     printf("a=%d\n", a);
2183     ptr = NULL;
2184     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
2185
2186     /* The type of sizeof should be as large as a pointer, actually
2187        it should be size_t.  */
2188     printf("sizeof(sizeof(int) = %d\n", sizeof(sizeof(int)));
2189     uintptr_t t = 1;
2190     uintptr_t t2;
2191     /* Effectively <<32, but defined also on 32bit machines.  */
2192     t <<= 16;
2193     t <<= 16;
2194     t++;
2195     /* This checks that sizeof really can be used to manipulate
2196        uintptr_t objects, without truncation.  */
2197     t2 = t & -sizeof(uintptr_t);
2198     printf ("%lu %lu\n", t, t2);
2199
2200     /* some alignof tests */
2201     printf("__alignof__(int) = %d\n", __alignof__(int));
2202     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
2203     printf("__alignof__(short) = %d\n", __alignof__(short));
2204     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
2205     printf("__alignof__(char) = %d\n", __alignof__(char));
2206     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
2207     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
2208 }
2209
2210 void typeof_test(void)
2211 {
2212     double a;
2213     typeof(a) b;
2214     typeof(float) c;
2215
2216     a = 1.5;
2217     b = 2.5;
2218     c = 3.5;
2219     printf("a=%f b=%f c=%f\n", a, b, c);
2220 }
2221
2222 void statement_expr_test(void)
2223 {
2224     int a, i;
2225
2226     a = 0;
2227     for(i=0;i<10;i++) {
2228         a += 1 +
2229             ( { int b, j;
2230                 b = 0;
2231                 for(j=0;j<5;j++)
2232                     b += j; b;
2233             } );
2234     }
2235     printf("a=%d\n", a);
2236
2237 }
2238
2239 void local_label_test(void)
2240 {
2241     int a;
2242     goto l1;
2243  l2:
2244     a = 1 + ({
2245         __label__ l1, l2, l3, l4;
2246         goto l1;
2247     l4:
2248         printf("aa1\n");
2249         goto l3;
2250     l2:
2251         printf("aa3\n");
2252         goto l4;
2253     l1:
2254         printf("aa2\n");
2255         goto l2;
2256     l3:;
2257         1;
2258     });
2259     printf("a=%d\n", a);
2260     return;
2261  l4:
2262     printf("bb1\n");
2263     goto l2;
2264  l1:
2265     printf("bb2\n");
2266     goto l4;
2267 }
2268
2269 /* inline assembler test */
2270 #ifdef __i386__
2271
2272 /* from linux kernel */
2273 static char * strncat1(char * dest,const char * src,size_t count)
2274 {
2275 int d0, d1, d2, d3;
2276 __asm__ __volatile__(
2277         "repne\n\t"
2278         "scasb\n\t"
2279         "decl %1\n\t"
2280         "movl %8,%3\n"
2281         "1:\tdecl %3\n\t"
2282         "js 2f\n\t"
2283         "lodsb\n\t"
2284         "stosb\n\t"
2285         "testb %%al,%%al\n\t"
2286         "jne 1b\n"
2287         "2:\txorl %2,%2\n\t"
2288         "stosb"
2289         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2290         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2291         : "memory");
2292 return dest;
2293 }
2294
2295 static char * strncat2(char * dest,const char * src,size_t count)
2296 {
2297 int d0, d1, d2, d3;
2298 __asm__ __volatile__(
2299         "repne scasb\n\t" /* one-line repne prefix + string op */
2300         "decl %1\n\t"
2301         "movl %8,%3\n"
2302         "1:\tdecl %3\n\t"
2303         "js 2f\n\t"
2304         "lodsb\n\t"
2305         "stosb\n\t"
2306         "testb %%al,%%al\n\t"
2307         "jne 1b\n"
2308         "2:\txorl %2,%2\n\t"
2309         "stosb"
2310         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2311         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2312         : "memory");
2313 return dest;
2314 }
2315
2316 static inline void * memcpy1(void * to, const void * from, size_t n)
2317 {
2318 int d0, d1, d2;
2319 __asm__ __volatile__(
2320         "rep ; movsl\n\t"
2321         "testb $2,%b4\n\t"
2322         "je 1f\n\t"
2323         "movsw\n"
2324         "1:\ttestb $1,%b4\n\t"
2325         "je 2f\n\t"
2326         "movsb\n"
2327         "2:"
2328         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2329         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2330         : "memory");
2331 return (to);
2332 }
2333
2334 static inline void * memcpy2(void * to, const void * from, size_t n)
2335 {
2336 int d0, d1, d2;
2337 __asm__ __volatile__(
2338         "rep movsl\n\t"  /* one-line rep prefix + string op */
2339         "testb $2,%b4\n\t"
2340         "je 1f\n\t"
2341         "movsw\n"
2342         "1:\ttestb $1,%b4\n\t"
2343         "je 2f\n\t"
2344         "movsb\n"
2345         "2:"
2346         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2347         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2348         : "memory");
2349 return (to);
2350 }
2351
2352 static __inline__ void sigaddset1(unsigned int *set, int _sig)
2353 {
2354         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2355 }
2356
2357 static __inline__ void sigdelset1(unsigned int *set, int _sig)
2358 {
2359         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2360 }
2361
2362 static __inline__ __const__ unsigned int swab32(unsigned int x)
2363 {
2364         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
2365                 "rorl $16,%0\n\t"       /* swap words           */
2366                 "xchgb %b0,%h0"         /* swap higher bytes    */
2367                 :"=q" (x)
2368                 : "0" (x));
2369         return x;
2370 }
2371
2372 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
2373 {
2374     unsigned long long res;
2375     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
2376     return res;
2377 }
2378
2379 static __inline__ unsigned long long inc64(unsigned long long a)
2380 {
2381     unsigned long long res;
2382     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
2383     return res;
2384 }
2385
2386 unsigned int set;
2387
2388 void asm_test(void)
2389 {
2390     char buf[128];
2391     unsigned int val;
2392
2393     printf("inline asm:\n");
2394     /* test the no operand case */
2395     asm volatile ("xorl %eax, %eax");
2396
2397     memcpy1(buf, "hello", 6);
2398     strncat1(buf, " worldXXXXX", 3);
2399     printf("%s\n", buf);
2400
2401     memcpy2(buf, "hello", 6);
2402     strncat2(buf, " worldXXXXX", 3);
2403     printf("%s\n", buf);
2404
2405     /* 'A' constraint test */
2406     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
2407     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
2408
2409     set = 0xff;
2410     sigdelset1(&set, 2);
2411     sigaddset1(&set, 16);
2412     /* NOTE: we test here if C labels are correctly restored after the
2413        asm statement */
2414     goto label1;
2415  label2:
2416     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
2417 #ifdef __GNUC__ // works strange with GCC 4.3
2418     set=0x1080fd;
2419 #endif
2420     printf("set=0x%x\n", set);
2421     val = 0x01020304;
2422     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
2423     return;
2424  label1:
2425     goto label2;
2426 }
2427
2428 #else
2429
2430 void asm_test(void)
2431 {
2432 }
2433
2434 #endif
2435
2436 #define COMPAT_TYPE(type1, type2) \
2437 {\
2438     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
2439            __builtin_types_compatible_p (type1, type2));\
2440 }
2441
2442 int constant_p_var;
2443
2444 void builtin_test(void)
2445 {
2446 #if GCC_MAJOR >= 3
2447     COMPAT_TYPE(int, int);
2448     COMPAT_TYPE(int, unsigned int);
2449     COMPAT_TYPE(int, char);
2450     COMPAT_TYPE(int, const int);
2451     COMPAT_TYPE(int, volatile int);
2452     COMPAT_TYPE(int *, int *);
2453     COMPAT_TYPE(int *, void *);
2454     COMPAT_TYPE(int *, const int *);
2455     COMPAT_TYPE(char *, unsigned char *);
2456 /* space is needed because tcc preprocessor introduces a space between each token */
2457     COMPAT_TYPE(char * *, void *);
2458 #endif
2459     printf("res = %d\n", __builtin_constant_p(1));
2460     printf("res = %d\n", __builtin_constant_p(1 + 2));
2461     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
2462     printf("res = %d\n", __builtin_constant_p(constant_p_var));
2463 }
2464
2465
2466 extern int __attribute__((weak)) weak_f1(void);
2467 extern int __attribute__((weak)) weak_f2(void);
2468 extern int                       weak_f3(void);
2469 extern int __attribute__((weak)) weak_v1;
2470 extern int __attribute__((weak)) weak_v2;
2471 extern int                       weak_v3;
2472
2473 extern int                           (*weak_fpa)() __attribute__((weak));
2474 extern int __attribute__((weak))     (*weak_fpb)();
2475 extern     __attribute__((weak)) int (*weak_fpc)();
2476
2477 extern int                     weak_asm_f1(void) asm("weak_asm_f1x") __attribute((weak));
2478 extern int __attribute((weak)) weak_asm_f2(void) asm("weak_asm_f2x")                    ;
2479 extern int __attribute((weak)) weak_asm_f3(void) asm("weak_asm_f3x") __attribute((weak));
2480 extern int                     weak_asm_v1       asm("weak_asm_v1x") __attribute((weak));
2481 extern int __attribute((weak)) weak_asm_v2       asm("weak_asm_v2x")                    ;
2482 extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak));
2483
2484 static const size_t dummy = 0;
2485 extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy")));
2486 extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2;
2487 extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3;
2488
2489 int some_lib_func(void);
2490 int dummy_impl_of_slf(void) { return 444; }
2491 int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf")));
2492
2493 int weak_toolate() __attribute__((weak));
2494 int weak_toolate() { return 0; }
2495
2496 void __attribute__((weak)) weak_test(void)
2497 {
2498         printf("weak_f1=%d\n", weak_f1 ? weak_f1() : 123);
2499         printf("weak_f2=%d\n", weak_f2 ? weak_f2() : 123);
2500         printf("weak_f3=%d\n", weak_f3 ? weak_f3() : 123);
2501         printf("weak_v1=%d\n",&weak_v1 ? weak_v1   : 123);
2502         printf("weak_v2=%d\n",&weak_v2 ? weak_v2   : 123);
2503         printf("weak_v3=%d\n",&weak_v3 ? weak_v3   : 123);
2504
2505         printf("weak_fpa=%d\n",&weak_fpa ? weak_fpa() : 123);
2506         printf("weak_fpb=%d\n",&weak_fpb ? weak_fpb() : 123);
2507         printf("weak_fpc=%d\n",&weak_fpc ? weak_fpc() : 123);
2508
2509         printf("weak_asm_f1=%d\n", weak_asm_f1 != NULL);
2510         printf("weak_asm_f2=%d\n", weak_asm_f2 != NULL);
2511         printf("weak_asm_f3=%d\n", weak_asm_f3 != NULL);
2512         printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL);
2513         printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL);
2514         printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL);
2515 }
2516
2517 int __attribute__((weak)) weak_f2() { return 222; }
2518 int __attribute__((weak)) weak_f3() { return 333; }
2519 int __attribute__((weak)) weak_v2 = 222;
2520 int __attribute__((weak)) weak_v3 = 333;
2521
2522 void const_func(const int a)
2523 {
2524 }
2525
2526 void const_warn_test(void)
2527 {
2528     const_func(1);
2529 }
2530
2531 struct condstruct {
2532   int i;
2533 };
2534
2535 int getme (struct condstruct *s, int i)
2536 {
2537   int i1 = (i == 0 ? 0 : s)->i;
2538   int i2 = (i == 0 ? s : 0)->i;
2539   int i3 = (i == 0 ? (void*)0 : s)->i;
2540   int i4 = (i == 0 ? s : (void*)0)->i;
2541   return i1 + i2 + i3 + i4;
2542 }
2543
2544 struct global_data
2545 {
2546   int a[40];
2547   int *b[40];
2548 };
2549
2550 struct global_data global_data;
2551
2552 int global_data_getstuff (int *, int);
2553
2554 void global_data_callit (int i)
2555 {
2556   *global_data.b[i] = global_data_getstuff (global_data.b[i], 1);
2557 }
2558
2559 int global_data_getstuff (int *p, int i)
2560 {
2561   return *p + i;
2562 }
2563
2564 void global_data_test (void)
2565 {
2566   global_data.a[0] = 42;
2567   global_data.b[0] = &global_data.a[0];
2568   global_data_callit (0);
2569   printf ("%d\n", global_data.a[0]);
2570 }
2571
2572 struct cmpcmpS
2573 {
2574   unsigned char fill : 3;
2575   unsigned char b1 : 1;
2576   unsigned char b2 : 1;
2577   unsigned char fill2 : 3;
2578 };
2579
2580 int glob1, glob2, glob3;
2581
2582 void compare_comparisons (struct cmpcmpS *s)
2583 {
2584   if (s->b1 != (glob1 == glob2)
2585       || (s->b2 != (glob1 == glob3)))
2586     printf ("comparing comparisons broken\n");
2587 }
2588
2589 void cmp_comparison_test(void)
2590 {
2591   struct cmpcmpS s;
2592   s.b1 = 1;
2593   glob1 = 42; glob2 = 42;
2594   s.b2 = 0;
2595   glob3 = 43;
2596   compare_comparisons (&s);
2597   return 0;
2598 }
2599
2600 int fcompare (double a, double b, int code)
2601 {
2602   switch (code) {
2603     case 0: return a == b;
2604     case 1: return a != b;
2605     case 2: return a < b;
2606     case 3: return a >= b;
2607     case 4: return a > b;
2608     case 5: return a <= b;
2609   }
2610 }
2611
2612 void math_cmp_test(void)
2613 {
2614   double nan = 0.0/0.0;
2615   double one = 1.0;
2616   double two = 2.0;
2617   int comp = 0;
2618 #define bug(a,b,op,iop,part) printf("Test broken: %s %s %s %s %d\n", #a, #b, #op, #iop, part)
2619
2620   /* This asserts that "a op b" is _not_ true, but "a iop b" is true.
2621      And it does this in various ways so that all code generation paths
2622      are checked (generating inverted tests, or non-inverted tests, or
2623      producing a 0/1 value without jumps (that's done in the fcompare
2624      function).  */
2625 #define FCMP(a,b,op,iop,code) \
2626   if (fcompare (a,b,code))    \
2627     bug (a,b,op,iop,1); \
2628   if (a op b) \
2629     bug (a,b,op,iop,2); \
2630   if (a iop b) \
2631     ; \
2632   else \
2633     bug (a,b,op,iop,3); \
2634   if ((a op b) || comp) \
2635     bug (a,b,op,iop,4); \
2636   if ((a iop b) || comp) \
2637     ; \
2638   else \
2639     bug (a,b,op,iop,5);
2640
2641   /* Equality tests.  */
2642   FCMP(nan, nan, ==, !=, 0);
2643   FCMP(one, two, ==, !=, 0);
2644   FCMP(one, one, !=, ==, 1);
2645   /* Non-equality is a bit special.  */
2646   if (!fcompare (nan, nan, 1))
2647     bug (nan, nan, !=, ==, 6);
2648
2649   /* Relational tests on numbers.  */
2650   FCMP(two, one, <, >=, 2);
2651   FCMP(one, two, >=, <, 3);
2652   FCMP(one, two, >, <=, 4);
2653   FCMP(two, one, <=, >, 5);
2654
2655   /* Relational tests on NaNs.  Note that the inverse op here is
2656      always !=, there's no operator in C that is equivalent to !(a < b),
2657      when NaNs are involved, same for the other relational ops.  */
2658   FCMP(nan, nan, <, !=, 2);
2659   FCMP(nan, nan, >=, !=, 3);
2660   FCMP(nan, nan, >, !=, 4);
2661   FCMP(nan, nan, <=, !=, 5);
2662 }
2663
2664 double get100 () { return 100.0; }
2665
2666 void callsave_test(void)
2667 {
2668 #if defined __i386__ || defined __x86_64__
2669   int i, s; double *d; double t;
2670   s = sizeof (double);
2671   printf ("callsavetest: %d\n", s);
2672   d = alloca (sizeof(double));
2673   d[0] = 10.0;
2674   /* x86-64 had a bug were the next call to get100 would evict
2675      the lvalue &d[0] as VT_LLOCAL, and the reload would be done
2676      in int type, not pointer type.  When alloca returns a pointer
2677      with the high 32 bit set (which is likely on x86-64) the access
2678      generates a segfault.  */
2679   i = d[0] > get100 ();
2680   printf ("%d\n", i);
2681 #endif
2682 }