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 void builtin_frame_address_test(void);
  93
  94 int fib(int n);
  95 void num(int n);
  96 void forward_ref(void);
  97 int isid(int c);
  98
  99 #define A 2
 100 #define N 1234 + A
 101 #define pf printf
 102 #define M1(a, b)  (a) + (b)
 103
 104 #define str\
 105 (s) # s
 106 #define glue(a, b) a ## b
 107 #define xglue(a, b) glue(a, b)
 108 #define HIGHLOW "hello"
 109 #define LOW LOW ", world"
 110
 111 static int onetwothree = 123;
 112 #define onetwothree4 onetwothree
 113 #define onetwothree xglue(onetwothree,4)
 114
 115 #define min(a, b) ((a) < (b) ? (a) : (b))
 116
 117 #ifdef C99_MACROS
 118 #define dprintf(level,...) printf(__VA_ARGS__)
 119 #endif
 120
 121 /* gcc vararg macros */
 122 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 123
 124 #define MACRO_NOARGS()
 125
 126 #define AAA 3
 127 #undef AAA
 128 #define AAA 4
 129
 130 #if 1
 131 #define B3 1
 132 #elif 1
 133 #define B3 2
 134 #elif 0
 135 #define B3 3
 136 #else
 137 #define B3 4
 138 #endif
 139
 140 #define __INT64_C(c)    c ## LL
 141 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 142
 143 int qq(int x)
 144 {
 145     return x + 40;
 146 }
 147 #define qq(x) x
 148
 149 #define spin_lock(lock) do { } while (0)
 150 #define wq_spin_lock spin_lock
 151 #define TEST2() wq_spin_lock(a)
 152
 153 void macro_test(void)
 154 {
 155     printf("macro:\n");\f\v
 156     pf("N=%d\n", N);
 157     printf("aaa=%d\n", AAA);
 158
 159     printf("min=%d\n", min(1, min(2, -1)));
 160
 161     printf("s1=%s\n", glue(HIGH, LOW));
 162     printf("s2=%s\n", xglue(HIGH, LOW));
 163     printf("s3=%s\n", str("c"));
 164     printf("s4=%s\n", str(a1));
 165     printf("B3=%d\n", B3);
 166
 167     printf("onetwothree=%d\n", onetwothree);
 168
 169 #ifdef A
 170     printf("A defined\n");
 171 #endif
 172 #ifdef B
 173     printf("B defined\n");
 174 #endif
 175 #ifdef A
 176     printf("A defined\n");
 177 #else
 178     printf("A not defined\n");
 179 #endif
 180 #ifdef B
 181     printf("B defined\n");
 182 #else
 183     printf("B not defined\n");
 184 #endif
 185
 186 #ifdef A
 187     printf("A defined\n");
 188 #ifdef B
 189     printf("B1 defined\n");
 190 #else
 191     printf("B1 not defined\n");
 192 #endif
 193 #else
 194     printf("A not defined\n");
 195 #ifdef B
 196     printf("B2 defined\n");
 197 #else
 198     printf("B2 not defined\n");
 199 #endif
 200 #endif
 201
 202 #if 1+1
 203     printf("test true1\n");
 204 #endif
 205 #if 0
 206     printf("test true2\n");
 207 #endif
 208 #if 1-1
 209     printf("test true3\n");
 210 #endif
 211 #if defined(A)
 212     printf("test trueA\n");
 213 #endif
 214 #if defined(B)
 215     printf("test trueB\n");
 216 #endif
 217
 218 #if 0
 219     printf("test 0\n");
 220 #elif 0
 221     printf("test 1\n");
 222 #elif 2
 223     printf("test 2\n");
 224 #else
 225     printf("test 3\n");
 226 #endif
 227
 228     MACRO_NOARGS();
 229
 230 #ifdef __LINE__
 231     printf("__LINE__ defined\n");
 232 #endif
 233
 234     printf("__LINE__=%d __FILE__=%s\n",
 235            __LINE__, __FILE__);
 236 #line 200
 237     printf("__LINE__=%d __FILE__=%s\n",
 238            __LINE__, __FILE__);
 239 #line 203 "test"
 240     printf("__LINE__=%d __FILE__=%s\n",
 241            __LINE__, __FILE__);
 242 #line 227 "tcctest.c"
 243
 244     /* not strictly preprocessor, but we test it there */
 245 #ifdef C99_MACROS
 246     printf("__func__ = %s\n", __func__);
 247     dprintf(1, "vaarg=%d\n", 1);
 248 #endif
 249     dprintf1(1, "vaarg1\n");
 250     dprintf1(1, "vaarg1=%d\n", 2);
 251     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 252
 253     /* gcc extension */
 254     printf("func='%s'\n", __FUNCTION__);
 255
 256     /* complicated macros in glibc */
 257     printf("INT64_MIN=%Ld\n", INT64_MIN);
 258     {
 259         int a;
 260         a = 1;
 261         glue(a+, +);
 262         printf("a=%d\n", a);
 263         glue(a <, <= 2);
 264         printf("a=%d\n", a);
 265     }
 266
 267     /* macro function with argument outside the macro string */
 268 #define MF_s MF_hello
 269 #define MF_hello(msg) printf("%s\n",msg)
 270
 271 #define MF_t printf("tralala\n"); MF_hello
 272
 273     MF_s("hi");
 274     MF_t("hi");
 275
 276     /* test macro substituion inside args (should not eat stream) */
 277     printf("qq=%d\n", qq(qq)(2));
 278
 279     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 280        null argument without a space. gcc 3.2 fixes that. */
 281
 282 #define qq1(x) 1
 283     printf("qq1=%d\n", qq1( ));
 284
 285     /* comment with stray handling *\
 286 /
 287        /* this is a valid *\/ comment */
 288        /* this is a valid comment *\*/
 289     //  this is a valid\
 290 comment
 291
 292     /* test function macro substitution when the function name is
 293        substituted */
 294     TEST2();
 295
 296     /* And again when the name and parenthes are separated by a
 297        comment.  */
 298     TEST2 /* the comment */ ();
 299 }
 300
 301
 302 static void print_num(char *fn, int line, int num) {
 303     printf("fn %s, line %d, num %d\n", fn, line, num);
 304 }
 305
 306 void recursive_macro_test(void)
 307 {
 308
 309 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 310 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 311 #define STB_WEAK        2               /* Weak symbol */
 312 #define ELFW(type) ELF##32##_##type
 313     printf("%d\n", ELFW(ST_INFO)(STB_WEAK, ELFW(ST_TYPE)(123)));
 314
 315 #define WRAP(x) x
 316
 317 #define print_num(x) print_num(__FILE__,__LINE__,x)
 318     print_num(123);
 319     WRAP(print_num(123));
 320     WRAP(WRAP(print_num(123)));
 321
 322 static struct recursive_macro { int rm_field; } G;
 323 #define rm_field (G.rm_field)
 324     printf("rm_field = %d\n", rm_field);
 325     printf("rm_field = %d\n", WRAP(rm_field));
 326     WRAP((printf("rm_field = %d %d\n", rm_field, WRAP(rm_field))));
 327 }
 328
 329 int op(a,b)
 330 {
 331     return a / b;
 332 }
 333
 334 int ret(a)
 335 {
 336     if (a == 2)
 337         return 1;
 338     if (a == 3)
 339         return 2;
 340     return 0;
 341 }
 342
 343 void ps(const char *s)
 344 {
 345     int c;
 346     while (1) {
 347         c = *s;
 348         if (c == 0)
 349             break;
 350         printf("%c", c);
 351         s++;
 352     }
 353 }
 354
 355 const char foo1_string[] = "\
 356 bar\n\
 357 test\14\
 358 1";
 359
 360 void string_test()
 361 {
 362     unsigned int b;
 363     printf("string:\n");
 364     printf("\141\1423\143\n");/* dezdez test */
 365     printf("\x41\x42\x43\x3a\n");
 366     printf("c=%c\n", 'r');
 367     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 368     printf("foo1_string='%s'\n", foo1_string);
 369 #if 0
 370     printf("wstring=%S\n", L"abc");
 371     printf("wstring=%S\n", L"abc" L"def" "ghi");
 372     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 373     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 374 #endif
 375     ps("test\n");
 376     b = 32;
 377     while ((b = b + 1) < 96) {
 378         printf("%c", b);
 379     }
 380     printf("\n");
 381     printf("fib=%d\n", fib(33));
 382     b = 262144;
 383     while (b != 0x80000000) {
 384         num(b);
 385         b = b * 2;
 386     }
 387 }
 388
 389 void loop_test()
 390 {
 391     int i;
 392     i = 0;
 393     while (i < 10)
 394         printf("%d", i++);
 395     printf("\n");
 396     for(i = 0; i < 10;i++)
 397         printf("%d", i);
 398     printf("\n");
 399     i = 0;
 400     do {
 401         printf("%d", i++);
 402     } while (i < 10);
 403     printf("\n");
 404
 405     char count = 123;
 406     /* c99 for loop init test */
 407     for (size_t count = 1; count < 3; count++)
 408         printf("count=%d\n", count);
 409     printf("count = %d\n", count);
 410
 411     /* break/continue tests */
 412     i = 0;
 413     while (1) {
 414         if (i == 6)
 415             break;
 416         i++;
 417         if (i == 3)
 418             continue;
 419         printf("%d", i);
 420     }
 421     printf("\n");
 422
 423     /* break/continue tests */
 424     i = 0;
 425     do {
 426         if (i == 6)
 427             break;
 428         i++;
 429         if (i == 3)
 430             continue;
 431         printf("%d", i);
 432     } while(1);
 433     printf("\n");
 434
 435     for(i = 0;i < 10;i++) {
 436         if (i == 3)
 437             continue;
 438         printf("%d", i);
 439     }
 440     printf("\n");
 441 }
 442
 443 typedef int typedef_and_label;
 444
 445 void goto_test()
 446 {
 447     int i;
 448     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 449
 450     printf("goto:\n");
 451     i = 0;
 452     /* This needs to parse as label, not as start of decl.  */
 453  typedef_and_label:
 454  s_loop:
 455     if (i >= 10)
 456         goto s_end;
 457     printf("%d", i);
 458     i++;
 459     goto s_loop;
 460  s_end:
 461     printf("\n");
 462
 463     /* we also test computed gotos (GCC extension) */
 464     for(i=0;i<3;i++) {
 465         goto *label_table[i];
 466     label1:
 467         printf("label1\n");
 468         goto next;
 469     label2:
 470         printf("label2\n");
 471         goto next;
 472     label3:
 473         printf("label3\n");
 474     next: ;
 475     }
 476 }
 477
 478 enum {
 479     E0,
 480     E1 = 2,
 481     E2 = 4,
 482     E3,
 483     E4,
 484 };
 485
 486 enum test {
 487     E5 = 1000,
 488 };
 489
 490 void enum_test()
 491 {
 492     enum test b1;
 493     printf("enum:\n%d %d %d %d %d %d\n",
 494            E0, E1, E2, E3, E4, E5);
 495     b1 = 1;
 496     printf("b1=%d\n", b1);
 497 }
 498
 499 typedef int *my_ptr;
 500
 501 typedef int mytype1;
 502 typedef int mytype2;
 503
 504 void typedef_test()
 505 {
 506     my_ptr a;
 507     mytype1 mytype2;
 508     int b;
 509
 510     a = &b;
 511     *a = 1234;
 512     printf("typedef:\n");
 513     printf("a=%d\n", *a);
 514     mytype2 = 2;
 515     printf("mytype2=%d\n", mytype2);
 516 }
 517
 518 void forward_test()
 519 {
 520     printf("forward:\n");
 521     forward_ref();
 522     forward_ref();
 523 }
 524
 525
 526 void forward_ref(void)
 527 {
 528     printf("forward ok\n");
 529 }
 530
 531 typedef struct struct1 {
 532     int f1;
 533     int f2, f3;
 534     union union1 {
 535         int v1;
 536         int v2;
 537     } u;
 538     char str[3];
 539 } struct1;
 540
 541 struct struct2 {
 542     int a;
 543     char b;
 544 };
 545
 546 union union2 {
 547     int w1;
 548     int w2;
 549 };
 550
 551 struct struct1 st1, st2;
 552
 553 int main(int argc, char **argv)
 554 {
 555     string_test();
 556     expr_test();
 557     macro_test();
 558     recursive_macro_test();
 559     scope_test();
 560     forward_test();
 561     funcptr_test();
 562     loop_test();
 563     switch_test();
 564     goto_test();
 565     enum_test();
 566     typedef_test();
 567     struct_test();
 568     array_test();
 569     expr_ptr_test();
 570     bool_test();
 571     expr2_test();
 572     constant_expr_test();
 573     expr_cmp_test();
 574     char_short_test();
 575     init_test();
 576     compound_literal_test();
 577     kr_test();
 578     struct_assign_test();
 579     cast_test();
 580     bitfield_test();
 581     c99_bool_test();
 582     float_test();
 583     longlong_test();
 584     manyarg_test();
 585     stdarg_test();
 586     whitespace_test();
 587     relocation_test();
 588     old_style_function();
 589     alloca_test();
 590     c99_vla_test(5, 2);
 591     sizeof_test();
 592     typeof_test();
 593     statement_expr_test();
 594     local_label_test();
 595     asm_test();
 596     builtin_test();
 597     weak_test();
 598     global_data_test();
 599     cmp_comparison_test();
 600     math_cmp_test();
 601     callsave_test();
 602     builtin_frame_address_test();
 603     return 0;
 604 }
 605
 606 int tab[3];
 607 int tab2[3][2];
 608
 609 int g;
 610
 611 void f1(g)
 612 {
 613     printf("g1=%d\n", g);
 614 }
 615
 616 void scope_test()
 617 {
 618     printf("scope:\n");
 619     g = 2;
 620     f1(1);
 621     printf("g2=%d\n", g);
 622     {
 623         int g;
 624         g = 3;
 625         printf("g3=%d\n", g);
 626         {
 627             int g;
 628             g = 4;
 629             printf("g4=%d\n", g);
 630         }
 631     }
 632     printf("g5=%d\n", g);
 633 }
 634
 635 void array_test()
 636 {
 637     int i, j, a[4];
 638
 639     printf("array:\n");
 640     printf("sizeof(a) = %d\n", sizeof(a));
 641     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 642 #ifdef C99_MACROS
 643     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 644 #endif
 645     printf("sizeof tab %d\n", sizeof(tab));
 646     printf("sizeof tab2 %d\n", sizeof tab2);
 647     tab[0] = 1;
 648     tab[1] = 2;
 649     tab[2] = 3;
 650     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 651     for(i=0;i<3;i++)
 652         for(j=0;j<2;j++)
 653             tab2[i][j] = 10 * i + j;
 654     for(i=0;i<3*2;i++) {
 655         printf(" %3d", ((int *)tab2)[i]);
 656     }
 657     printf("\n");
 658     printf("sizeof(size_t)=%d\n", sizeof(size_t));
 659     printf("sizeof(ptrdiff_t)=%d\n", sizeof(ptrdiff_t));
 660 }
 661
 662 void expr_test()
 663 {
 664     int a, b;
 665     a = 0;
 666     printf("%d\n", a += 1);
 667     printf("%d\n", a -= 2);
 668     printf("%d\n", a *= 31232132);
 669     printf("%d\n", a /= 4);
 670     printf("%d\n", a %= 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", a <<= 4);
 676
 677     a = 22321;
 678     b = -22321;
 679     printf("%d\n", a + 1);
 680     printf("%d\n", a - 2);
 681     printf("%d\n", a * 312);
 682     printf("%d\n", a / 4);
 683     printf("%d\n", b / 4);
 684     printf("%d\n", (unsigned)b / 4);
 685     printf("%d\n", a % 20);
 686     printf("%d\n", b % 20);
 687     printf("%d\n", (unsigned)b % 20);
 688     printf("%d\n", a & 6);
 689     printf("%d\n", a ^ 7);
 690     printf("%d\n", a | 8);
 691     printf("%d\n", a >> 3);
 692     printf("%d\n", b >> 3);
 693     printf("%d\n", (unsigned)b >> 3);
 694     printf("%d\n", a << 4);
 695     printf("%d\n", ~a);
 696     printf("%d\n", -a);
 697     printf("%d\n", +a);
 698
 699     printf("%d\n", 12 + 1);
 700     printf("%d\n", 12 - 2);
 701     printf("%d\n", 12 * 312);
 702     printf("%d\n", 12 / 4);
 703     printf("%d\n", 12 % 20);
 704     printf("%d\n", 12 & 6);
 705     printf("%d\n", 12 ^ 7);
 706     printf("%d\n", 12 | 8);
 707     printf("%d\n", 12 >> 2);
 708     printf("%d\n", 12 << 4);
 709     printf("%d\n", ~12);
 710     printf("%d\n", -12);
 711     printf("%d\n", +12);
 712     printf("%d %d %d %d\n",
 713            isid('a'),
 714            isid('g'),
 715            isid('T'),
 716            isid('('));
 717 }
 718
 719 int isid(int c)
 720 {
 721     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 722 }
 723
 724 /**********************/
 725
 726 int vstack[10], *vstack_ptr;
 727
 728 void vpush(int vt, int vc)
 729 {
 730     *vstack_ptr++ = vt;
 731     *vstack_ptr++ = vc;
 732 }
 733
 734 void vpop(int *ft, int *fc)
 735 {
 736     *fc = *--vstack_ptr;
 737     *ft = *--vstack_ptr;
 738 }
 739
 740 void expr2_test()
 741 {
 742     int a, b;
 743
 744     printf("expr2:\n");
 745     vstack_ptr = vstack;
 746     vpush(1432432, 2);
 747     vstack_ptr[-2] &= ~0xffffff80;
 748     vpop(&a, &b);
 749     printf("res= %d %d\n", a, b);
 750 }
 751
 752 void constant_expr_test()
 753 {
 754     int a;
 755     printf("constant_expr:\n");
 756     a = 3;
 757     printf("%d\n", a * 16);
 758     printf("%d\n", a * 1);
 759     printf("%d\n", a + 0);
 760 }
 761
 762 int tab4[10];
 763
 764 void expr_ptr_test()
 765 {
 766     int *p, *q;
 767     int i = -1;
 768
 769     printf("expr_ptr:\n");
 770     p = tab4;
 771     q = tab4 + 10;
 772     printf("diff=%d\n", q - p);
 773     p++;
 774     printf("inc=%d\n", p - tab4);
 775     p--;
 776     printf("dec=%d\n", p - tab4);
 777     ++p;
 778     printf("inc=%d\n", p - tab4);
 779     --p;
 780     printf("dec=%d\n", p - tab4);
 781     printf("add=%d\n", p + 3 - tab4);
 782     printf("add=%d\n", 3 + p - tab4);
 783
 784     /* check if 64bit support is ok */
 785     q = p = 0;
 786     q += i;
 787     printf("%p %p %ld\n", q, p, p-q);
 788     printf("%d %d %d %d %d %d\n",
 789            p == q, p != q, p < q, p <= q, p >= q, p > q);
 790     i = 0xf0000000;
 791     p += i;
 792     printf("%p %p %ld\n", q, p, p-q);
 793     printf("%d %d %d %d %d %d\n",
 794            p == q, p != q, p < q, p <= q, p >= q, p > q);
 795     p = (int *)((char *)p + 0xf0000000);
 796     printf("%p %p %ld\n", q, p, p-q);
 797     printf("%d %d %d %d %d %d\n",
 798            p == q, p != q, p < q, p <= q, p >= q, p > q);
 799     p += 0xf0000000;
 800     printf("%p %p %ld\n", q, p, p-q);
 801     printf("%d %d %d %d %d %d\n",
 802            p == q, p != q, p < q, p <= q, p >= q, p > q);
 803     {
 804         struct size12 {
 805             int i, j, k;
 806         };
 807         struct size12 s[2], *sp = s;
 808         int i, j;
 809         sp->i = 42;
 810         sp++;
 811         j = -1;
 812         printf("%d\n", sp[j].i);
 813     }
 814 }
 815
 816 void expr_cmp_test()
 817 {
 818     int a, b;
 819     printf("constant_expr:\n");
 820     a = -1;
 821     b = 1;
 822     printf("%d\n", a == a);
 823     printf("%d\n", a != a);
 824
 825     printf("%d\n", a < b);
 826     printf("%d\n", a <= b);
 827     printf("%d\n", a <= a);
 828     printf("%d\n", b >= a);
 829     printf("%d\n", a >= a);
 830     printf("%d\n", b > a);
 831
 832     printf("%d\n", (unsigned)a < b);
 833     printf("%d\n", (unsigned)a <= b);
 834     printf("%d\n", (unsigned)a <= a);
 835     printf("%d\n", (unsigned)b >= a);
 836     printf("%d\n", (unsigned)a >= a);
 837     printf("%d\n", (unsigned)b > a);
 838 }
 839
 840 struct empty {
 841 };
 842
 843 struct aligntest1 {
 844     char a[10];
 845 };
 846
 847 struct aligntest2 {
 848     int a;
 849     char b[10];
 850 };
 851
 852 struct aligntest3 {
 853     double a, b;
 854 };
 855
 856 struct aligntest4 {
 857     double a[0];
 858 };
 859
 860 void struct_test()
 861 {
 862     struct1 *s;
 863     union union2 u;
 864
 865     printf("struct:\n");
 866     printf("sizes: %d %d %d %d\n",
 867            sizeof(struct struct1),
 868            sizeof(struct struct2),
 869            sizeof(union union1),
 870            sizeof(union union2));
 871     st1.f1 = 1;
 872     st1.f2 = 2;
 873     st1.f3 = 3;
 874     printf("st1: %d %d %d\n",
 875            st1.f1, st1.f2, st1.f3);
 876     st1.u.v1 = 1;
 877     st1.u.v2 = 2;
 878     printf("union1: %d\n", st1.u.v1);
 879     u.w1 = 1;
 880     u.w2 = 2;
 881     printf("union2: %d\n", u.w1);
 882     s = &st2;
 883     s->f1 = 3;
 884     s->f2 = 2;
 885     s->f3 = 1;
 886     printf("st2: %d %d %d\n",
 887            s->f1, s->f2, s->f3);
 888     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 889
 890     /* align / size tests */
 891     printf("aligntest1 sizeof=%d alignof=%d\n",
 892            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 893     printf("aligntest2 sizeof=%d alignof=%d\n",
 894            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 895     printf("aligntest3 sizeof=%d alignof=%d\n",
 896            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 897     printf("aligntest4 sizeof=%d alignof=%d\n",
 898            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 899
 900     /* empty structures (GCC extension) */
 901     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 902     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 903 }
 904
 905 /* XXX: depend on endianness */
 906 void char_short_test()
 907 {
 908     int var1, var2;
 909
 910     printf("char_short:\n");
 911
 912     var1 = 0x01020304;
 913     var2 = 0xfffefdfc;
 914     printf("s8=%d %d\n",
 915            *(char *)&var1, *(char *)&var2);
 916     printf("u8=%d %d\n",
 917            *(unsigned char *)&var1, *(unsigned char *)&var2);
 918     printf("s16=%d %d\n",
 919            *(short *)&var1, *(short *)&var2);
 920     printf("u16=%d %d\n",
 921            *(unsigned short *)&var1, *(unsigned short *)&var2);
 922     printf("s32=%d %d\n",
 923            *(int *)&var1, *(int *)&var2);
 924     printf("u32=%d %d\n",
 925            *(unsigned int *)&var1, *(unsigned int *)&var2);
 926     *(char *)&var1 = 0x08;
 927     printf("var1=%x\n", var1);
 928     *(short *)&var1 = 0x0809;
 929     printf("var1=%x\n", var1);
 930     *(int *)&var1 = 0x08090a0b;
 931     printf("var1=%x\n", var1);
 932 }
 933
 934 /******************/
 935
 936 typedef struct Sym {
 937     int v;
 938     int t;
 939     int c;
 940     struct Sym *next;
 941     struct Sym *prev;
 942 } Sym;
 943
 944 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 945 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 946
 947 static int toupper1(int a)
 948 {
 949     return TOUPPER(a);
 950 }
 951
 952 void bool_test()
 953 {
 954     int *s, a, b, t, f, i;
 955
 956     a = 0;
 957     s = (void*)0;
 958     printf("!s=%d\n", !s);
 959
 960     if (!s || !s[0])
 961         a = 1;
 962     printf("a=%d\n", a);
 963
 964     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 965     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 966     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 967 #if 1 && 1
 968     printf("a1\n");
 969 #endif
 970 #if 1 || 0
 971     printf("a2\n");
 972 #endif
 973 #if 1 ? 0 : 1
 974     printf("a3\n");
 975 #endif
 976 #if 0 ? 0 : 1
 977     printf("a4\n");
 978 #endif
 979
 980     a = 4;
 981     printf("b=%d\n", a + (0 ? 1 : a / 2));
 982
 983     /* test register spilling */
 984     a = 10;
 985     b = 10;
 986     a = (a + b) * ((a < b) ?
 987                    ((b - a) * (a - b)): a + b);
 988     printf("a=%d\n", a);
 989
 990     /* test complex || or && expressions */
 991     t = 1;
 992     f = 0;
 993     a = 32;
 994     printf("exp=%d\n", f == (32 <= a && a <= 3));
 995     printf("r=%d\n", (t || f) + (t && f));
 996
 997     /* test ? : cast */
 998     {
 999         int aspect_on;
1000         int aspect_native = 65536;
1001         double bfu_aspect = 1.0;
1002         int aspect;
1003         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
1004             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
1005             printf("aspect=%d\n", aspect);
1006         }
1007     }
1008
1009     /* test ? : GCC extension */
1010     {
1011         static int v1 = 34 ? : -1; /* constant case */
1012         static int v2 = 0 ? : -1; /* constant case */
1013         int a = 30;
1014
1015         printf("%d %d\n", v1, v2);
1016         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
1017     }
1018
1019     /* again complex expression */
1020     for(i=0;i<256;i++) {
1021         if (toupper1 (i) != TOUPPER (i))
1022             printf("error %d\n", i);
1023     }
1024 }
1025
1026 /* GCC accepts that */
1027 static int tab_reinit[];
1028 static int tab_reinit[10];
1029
1030 //int cinit1; /* a global variable can be defined several times without error ! */
1031 int cinit1;
1032 int cinit1;
1033 int cinit1 = 0;
1034 int *cinit2 = (int []){3, 2, 1};
1035
1036 void compound_literal_test(void)
1037 {
1038     int *p, i;
1039     char *q, *q3;
1040
1041     printf("compound_test:\n");
1042
1043     p = (int []){1, 2, 3};
1044     for(i=0;i<3;i++)
1045         printf(" %d", p[i]);
1046     printf("\n");
1047
1048     for(i=0;i<3;i++)
1049         printf("%d", cinit2[i]);
1050     printf("\n");
1051
1052     q = "tralala1";
1053     printf("q1=%s\n", q);
1054
1055     q = (char *){ "tralala2" };
1056     printf("q2=%s\n", q);
1057
1058     q3 = (char *){ q };
1059     printf("q3=%s\n", q3);
1060
1061     q = (char []){ "tralala3" };
1062     printf("q4=%s\n", q);
1063
1064 #ifdef ALL_ISOC99
1065     p = (int []){1, 2, cinit1 + 3};
1066     for(i=0;i<3;i++)
1067         printf(" %d", p[i]);
1068     printf("\n");
1069
1070     for(i=0;i<3;i++) {
1071         p = (int []){1, 2, 4 + i};
1072         printf("%d %d %d\n",
1073                p[0],
1074                p[1],
1075                p[2]);
1076     }
1077 #endif
1078 }
1079
1080 /* K & R protos */
1081
1082 kr_func1(a, b)
1083 {
1084     return a + b;
1085 }
1086
1087 int kr_func2(a, b)
1088 {
1089     return a + b;
1090 }
1091
1092 kr_test()
1093 {
1094     printf("kr_test:\n");
1095     printf("func1=%d\n", kr_func1(3, 4));
1096     printf("func2=%d\n", kr_func2(3, 4));
1097     return 0;
1098 }
1099
1100 void num(int n)
1101 {
1102     char *tab, *p;
1103     tab = (char*)malloc(20);
1104     p = tab;
1105     while (1) {
1106         *p = 48 + (n % 10);
1107         p++;
1108         n = n / 10;
1109         if (n == 0)
1110             break;
1111     }
1112     while (p != tab) {
1113         p--;
1114         printf("%c", *p);
1115     }
1116     printf("\n");
1117     free(tab);
1118 }
1119
1120 /* structure assignment tests */
1121 struct structa1 {
1122     int f1;
1123     char f2;
1124 };
1125
1126 struct structa1 ssta1;
1127
1128 void struct_assign_test1(struct structa1 s1, int t, float f)
1129 {
1130     printf("%d %d %d %f\n", s1.f1, s1.f2, t, f);
1131 }
1132
1133 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1134 {
1135     s1.f1 += t;
1136     s1.f2 -= t;
1137     return s1;
1138 }
1139
1140 void struct_assign_test(void)
1141 {
1142     struct S {
1143       struct structa1 lsta1, lsta2;
1144       int i;
1145     } s, *ps;
1146
1147     ps = &s;
1148     ps->i = 4;
1149 #if 0
1150     printf("struct_assign_test:\n");
1151
1152     s.lsta1.f1 = 1;
1153     s.lsta1.f2 = 2;
1154     printf("%d %d\n", s.lsta1.f1, s.lsta1.f2);
1155     s.lsta2 = s.lsta1;
1156     printf("%d %d\n", s.lsta2.f1, s.lsta2.f2);
1157 #else
1158     s.lsta2.f1 = 1;
1159     s.lsta2.f2 = 2;
1160 #endif
1161     struct_assign_test1(ps->lsta2, 3, 4.5);
1162
1163     printf("before call: %d %d\n", s.lsta2.f1, s.lsta2.f2);
1164     ps->lsta2 = struct_assign_test2(ps->lsta2, ps->i);
1165     printf("after call: %d %d\n", ps->lsta2.f1, ps->lsta2.f2);
1166
1167     static struct {
1168         void (*elem)();
1169     } t[] = {
1170         /* XXX: we should allow this even without braces */
1171         { struct_assign_test }
1172     };
1173     printf("%d\n", struct_assign_test == t[0].elem);
1174 }
1175
1176 /* casts to short/char */
1177
1178 void cast1(char a, short b, unsigned char c, unsigned short d)
1179 {
1180     printf("%d %d %d %d\n", a, b, c, d);
1181 }
1182
1183 char bcast;
1184 short scast;
1185
1186 void cast_test()
1187 {
1188     int a;
1189     char c;
1190     char tab[10];
1191     unsigned b,d;
1192     short s;
1193     char *p = NULL;
1194     p -= 0x700000000042;
1195
1196     printf("cast_test:\n");
1197     a = 0xfffff;
1198     cast1(a, a, a, a);
1199     a = 0xffffe;
1200     printf("%d %d %d %d\n",
1201            (char)(a + 1),
1202            (short)(a + 1),
1203            (unsigned char)(a + 1),
1204            (unsigned short)(a + 1));
1205     printf("%d %d %d %d\n",
1206            (char)0xfffff,
1207            (short)0xfffff,
1208            (unsigned char)0xfffff,
1209            (unsigned short)0xfffff);
1210
1211     a = (bcast = 128) + 1;
1212     printf("%d\n", a);
1213     a = (scast = 65536) + 1;
1214     printf("%d\n", a);
1215
1216     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1217
1218     /* test cast from unsigned to signed short to int */
1219     b = 0xf000;
1220     d = (short)b;
1221     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1222     b = 0xf0f0;
1223     d = (char)b;
1224     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1225
1226     /* test implicit int casting for array accesses */
1227     c = 0;
1228     tab[1] = 2;
1229     tab[c] = 1;
1230     printf("%d %d\n", tab[0], tab[1]);
1231
1232     /* test implicit casting on some operators */
1233     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1234     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1235     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1236
1237     /* from pointer to integer types */
1238     printf("%d %d %ld %ld %lld %lld\n",
1239            (int)p, (unsigned int)p,
1240            (long)p, (unsigned long)p,
1241            (long long)p, (unsigned long long)p);
1242
1243     /* from integers to pointers */
1244     printf("%p %p %p %p\n",
1245            (void *)a, (void *)b, (void *)c, (void *)d);
1246 }
1247
1248 /* initializers tests */
1249 struct structinit1 {
1250     int f1;
1251     char f2;
1252     short f3;
1253     int farray[3];
1254 };
1255
1256 int sinit1 = 2;
1257 int sinit2 = { 3 };
1258 int sinit3[3] = { 1, 2, {{3}}, };
1259 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1260 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1261 int sinit6[] = { 1, 2, 3 };
1262 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1263 char sinit8[] = "hello" "trala";
1264
1265 struct structinit1 sinit9 = { 1, 2, 3 };
1266 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1267 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1268 #ifdef ALL_ISOC99
1269                                .farray[0] = 10,
1270                                .farray[1] = 11,
1271                                .farray[2] = 12,
1272 #endif
1273 };
1274
1275 char *sinit12 = "hello world";
1276 char *sinit13[] = {
1277     "test1",
1278     "test2",
1279     "test3",
1280 };
1281 char sinit14[10] = { "abc" };
1282 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1283
1284 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1285
1286 struct bar {
1287         char *s;
1288         int len;
1289 } sinit17[] = {
1290         "a1", 4,
1291         "a2", 1
1292 };
1293
1294 int sinit18[10] = {
1295     [2 ... 5] = 20,
1296     2,
1297     [8] = 10,
1298 };
1299
1300 struct complexinit0 {
1301     int a;
1302     int b;
1303 };
1304
1305 struct complexinit {
1306     int a;
1307     const struct complexinit0 *b;
1308 };
1309
1310 const static struct complexinit cix[] = {
1311     [0] = {
1312         .a = 2000,
1313         .b = (const struct complexinit0[]) {
1314                 { 2001, 2002 },
1315                 { 2003, 2003 },
1316                 {}
1317         }
1318     }
1319 };
1320
1321 struct complexinit2 {
1322         int a;
1323         int b[];
1324 };
1325
1326 struct complexinit2 cix20;
1327
1328 struct complexinit2 cix21 = {
1329         .a = 3000,
1330         .b = { 3001, 3002, 3003 }
1331 };
1332
1333 struct complexinit2 cix22 = {
1334         .a = 4000,
1335         .b = { 4001, 4002, 4003, 4004, 4005, 4006 }
1336 };
1337
1338 void init_test(void)
1339 {
1340     int linit1 = 2;
1341     int linit2 = { 3 };
1342     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1343     int linit6[] = { 1, 2, 3 };
1344     int i, j;
1345     char linit8[] = "hello" "trala";
1346     int linit12[10] = { 1, 2 };
1347     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1348     char linit14[10] = "abc";
1349     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1350     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1351     int linit17 = sizeof(linit17);
1352
1353     printf("init_test:\n");
1354
1355     printf("sinit1=%d\n", sinit1);
1356     printf("sinit2=%d\n", sinit2);
1357     printf("sinit3=%d %d %d %d\n",
1358            sizeof(sinit3),
1359            sinit3[0],
1360            sinit3[1],
1361            sinit3[2]
1362            );
1363     printf("sinit6=%d\n", sizeof(sinit6));
1364     printf("sinit7=%d %d %d %d\n",
1365            sizeof(sinit7),
1366            sinit7[0],
1367            sinit7[1],
1368            sinit7[2]
1369            );
1370     printf("sinit8=%s\n", sinit8);
1371     printf("sinit9=%d %d %d\n",
1372            sinit9.f1,
1373            sinit9.f2,
1374            sinit9.f3
1375            );
1376     printf("sinit10=%d %d %d\n",
1377            sinit10.f1,
1378            sinit10.f2,
1379            sinit10.f3
1380            );
1381     printf("sinit11=%d %d %d %d %d %d\n",
1382            sinit11.f1,
1383            sinit11.f2,
1384            sinit11.f3,
1385            sinit11.farray[0],
1386            sinit11.farray[1],
1387            sinit11.farray[2]
1388            );
1389
1390     for(i=0;i<3;i++)
1391         for(j=0;j<2;j++)
1392             printf("[%d][%d] = %d %d %d\n",
1393                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1394     printf("linit1=%d\n", linit1);
1395     printf("linit2=%d\n", linit2);
1396     printf("linit6=%d\n", sizeof(linit6));
1397     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1398
1399     printf("sinit12=%s\n", sinit12);
1400     printf("sinit13=%d %s %s %s\n",
1401            sizeof(sinit13),
1402            sinit13[0],
1403            sinit13[1],
1404            sinit13[2]);
1405     printf("sinit14=%s\n", sinit14);
1406
1407     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1408     printf("\n");
1409     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1410     printf("\n");
1411     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1412     printf("\n");
1413     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1414     printf("\n");
1415     printf("%d %d %d %d\n",
1416            linit16.a1,
1417            linit16.a2,
1418            linit16.a3,
1419            linit16.a4);
1420     /* test that initialisation is done after variable declare */
1421     printf("linit17=%d\n", linit17);
1422     printf("sinit15=%d\n", sinit15[0]);
1423     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1424     printf("sinit17=%s %d %s %d\n",
1425            sinit17[0].s, sinit17[0].len,
1426            sinit17[1].s, sinit17[1].len);
1427     for(i=0;i<10;i++)
1428         printf("%x ", sinit18[i]);
1429     printf("\n");
1430     /* complex init check */
1431     printf("cix: %d %d %d %d %d %d %d\n",
1432         cix[0].a,
1433         cix[0].b[0].a, cix[0].b[0].b,
1434         cix[0].b[1].a, cix[0].b[1].b,
1435         cix[0].b[2].a, cix[0].b[2].b);
1436     printf("cix2: %d %d\n", cix21.b[2], cix22.b[5]);
1437     printf("sizeof cix20 %d, cix21 %d, sizeof cix22 %d\n", sizeof cix20, sizeof cix21, sizeof cix22);
1438 }
1439
1440
1441 void switch_test()
1442 {
1443     int i;
1444
1445     for(i=0;i<15;i++) {
1446         switch(i) {
1447         case 0:
1448         case 1:
1449             printf("a");
1450             break;
1451         default:
1452             printf("%d", i);
1453             break;
1454         case 8 ... 12:
1455             printf("c");
1456             break;
1457         case 3:
1458             printf("b");
1459             break;
1460         }
1461     }
1462     printf("\n");
1463 }
1464
1465 /* ISOC99 _Bool type */
1466 void c99_bool_test(void)
1467 {
1468 #ifdef BOOL_ISOC99
1469     int a;
1470     _Bool b;
1471
1472     printf("bool_test:\n");
1473     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1474     a = 3;
1475     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1476     b = 3;
1477     printf("b = %d\n", b);
1478     b++;
1479     printf("b = %d\n", b);
1480 #endif
1481 }
1482
1483 void bitfield_test(void)
1484 {
1485     int a;
1486     short sa;
1487     unsigned char ca;
1488     struct sbf1 {
1489         int f1 : 3;
1490         int : 2;
1491         int f2 : 1;
1492         int : 0;
1493         int f3 : 5;
1494         int f4 : 7;
1495         unsigned int f5 : 7;
1496     } st1;
1497     printf("bitfield_test:");
1498     printf("sizeof(st1) = %d\n", sizeof(st1));
1499
1500     st1.f1 = 3;
1501     st1.f2 = 1;
1502     st1.f3 = 15;
1503     a = 120;
1504     st1.f4 = a;
1505     st1.f5 = a;
1506     st1.f5++;
1507     printf("%d %d %d %d %d\n",
1508            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1509     sa = st1.f5;
1510     ca = st1.f5;
1511     printf("%d %d\n", sa, ca);
1512
1513     st1.f1 = 7;
1514     if (st1.f1 == -1)
1515         printf("st1.f1 == -1\n");
1516     else
1517         printf("st1.f1 != -1\n");
1518     if (st1.f2 == -1)
1519         printf("st1.f2 == -1\n");
1520     else
1521         printf("st1.f2 != -1\n");
1522
1523     /* bit sizes below must be bigger than 32 since GCC doesn't allow
1524        long-long bitfields whose size is not bigger than int */
1525     struct sbf2 {
1526         long long f1 : 45;
1527         long long : 2;
1528         long long f2 : 35;
1529         unsigned long long f3 : 38;
1530     } st2;
1531     st2.f1 = 0x123456789ULL;
1532     a = 120;
1533     st2.f2 = (long long)a << 25;
1534     st2.f3 = a;
1535     st2.f2++;
1536     printf("%lld %lld %lld\n", st2.f1, st2.f2, st2.f3);
1537 }
1538
1539 #ifdef __x86_64__
1540 #define FLOAT_FMT "%f\n"
1541 #else
1542 /* x86's float isn't compatible with GCC */
1543 #define FLOAT_FMT "%.5f\n"
1544 #endif
1545
1546 /* declare strto* functions as they are C99 */
1547 double strtod(const char *nptr, char **endptr);
1548 float strtof(const char *nptr, char **endptr);
1549 long double strtold(const char *nptr, char **endptr);
1550
1551 #define FTEST(prefix, type, fmt)\
1552 void prefix ## cmp(type a, type b)\
1553 {\
1554     printf("%d %d %d %d %d %d\n",\
1555            a == b,\
1556            a != b,\
1557            a < b,\
1558            a > b,\
1559            a >= b,\
1560            a <= b);\
1561     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1562            a,\
1563            b,\
1564            a + b,\
1565            a - b,\
1566            a * b,\
1567            a / b,\
1568            -a);\
1569     printf(fmt "\n", ++a);\
1570     printf(fmt "\n", a++);\
1571     printf(fmt "\n", a);\
1572     b = 0;\
1573     printf("%d %d\n", !a, !b);\
1574 }\
1575 void prefix ## fcast(type a)\
1576 {\
1577     float fa;\
1578     double da;\
1579     long double la;\
1580     int ia;\
1581     unsigned int ua;\
1582     type b;\
1583     fa = a;\
1584     da = a;\
1585     la = a;\
1586     printf("ftof: %f %f %Lf\n", fa, da, la);\
1587     ia = (int)a;\
1588     ua = (unsigned int)a;\
1589     printf("ftoi: %d %u\n", ia, ua);\
1590     ia = -1234;\
1591     ua = 0x81234500;\
1592     b = ia;\
1593     printf("itof: " fmt "\n", b);\
1594     b = ua;\
1595     printf("utof: " fmt "\n", b);\
1596 }\
1597 \
1598 float prefix ## retf(type a) { return a; }\
1599 double prefix ## retd(type a) { return a; }\
1600 long double prefix ## retld(type a) { return a; }\
1601 \
1602 void prefix ## call(void)\
1603 {\
1604     printf("float: " FLOAT_FMT, prefix ## retf(42.123456789));\
1605     printf("double: %f\n", prefix ## retd(42.123456789));\
1606     printf("long double: %Lf\n", prefix ## retld(42.123456789));\
1607     printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
1608 }\
1609 \
1610 void prefix ## test(void)\
1611 {\
1612     printf("testing '%s'\n", #type);\
1613     prefix ## cmp(1, 2.5);\
1614     prefix ## cmp(2, 1.5);\
1615     prefix ## cmp(1, 1);\
1616     prefix ## fcast(234.6);\
1617     prefix ## fcast(-2334.6);\
1618     prefix ## call();\
1619 }
1620
1621 FTEST(f, float, "%f")
1622 FTEST(d, double, "%f")
1623 FTEST(ld, long double, "%Lf")
1624
1625 double ftab1[3] = { 1.2, 3.4, -5.6 };
1626
1627
1628 void float_test(void)
1629 {
1630     float fa, fb;
1631     double da, db;
1632     int a;
1633     unsigned int b;
1634
1635     printf("float_test:\n");
1636     printf("sizeof(float) = %d\n", sizeof(float));
1637     printf("sizeof(double) = %d\n", sizeof(double));
1638     printf("sizeof(long double) = %d\n", sizeof(long double));
1639     ftest();
1640     dtest();
1641     ldtest();
1642     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1643     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1644     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1645     da = 123;
1646     printf("da=%f\n", da);
1647     fa = 123;
1648     printf("fa=%f\n", fa);
1649     a = 4000000000;
1650     da = a;
1651     printf("da = %f\n", da);
1652     b = 4000000000;
1653     db = b;
1654     printf("db = %f\n", db);
1655 }
1656
1657 int fib(int n)
1658 {
1659     if (n <= 2)
1660         return 1;
1661     else
1662         return fib(n-1) + fib(n-2);
1663 }
1664
1665 void funcptr_test()
1666 {
1667     void (*func)(int);
1668     int a;
1669     struct {
1670         int dummy;
1671         void (*func)(int);
1672     } st1;
1673
1674     printf("funcptr:\n");
1675     func = &num;
1676     (*func)(12345);
1677     func = num;
1678     a = 1;
1679     a = 1;
1680     func(12345);
1681     /* more complicated pointer computation */
1682     st1.func = num;
1683     st1.func(12346);
1684     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1685     printf("sizeof2 = %d\n", sizeof funcptr_test);
1686     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1687     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1688 }
1689
1690 void lloptest(long long a, long long b)
1691 {
1692     unsigned long long ua, ub;
1693
1694     ua = a;
1695     ub = b;
1696     /* arith */
1697     printf("arith: %Ld %Ld %Ld\n",
1698            a + b,
1699            a - b,
1700            a * b);
1701
1702     if (b != 0) {
1703         printf("arith1: %Ld %Ld\n",
1704            a / b,
1705            a % b);
1706     }
1707
1708     /* binary */
1709     printf("bin: %Ld %Ld %Ld\n",
1710            a & b,
1711            a | b,
1712            a ^ b);
1713
1714     /* tests */
1715     printf("test: %d %d %d %d %d %d\n",
1716            a == b,
1717            a != b,
1718            a < b,
1719            a > b,
1720            a >= b,
1721            a <= b);
1722
1723     printf("utest: %d %d %d %d %d %d\n",
1724            ua == ub,
1725            ua != ub,
1726            ua < ub,
1727            ua > ub,
1728            ua >= ub,
1729            ua <= ub);
1730
1731     /* arith2 */
1732     a++;
1733     b++;
1734     printf("arith2: %Ld %Ld\n", a, b);
1735     printf("arith2: %Ld %Ld\n", a++, b++);
1736     printf("arith2: %Ld %Ld\n", --a, --b);
1737     printf("arith2: %Ld %Ld\n", a, b);
1738     b = ub = 0;
1739     printf("not: %d %d %d %d\n", !a, !ua, !b, !ub);
1740 }
1741
1742 void llshift(long long a, int b)
1743 {
1744     printf("shift: %Ld %Ld %Ld\n",
1745            (unsigned long long)a >> b,
1746            a >> b,
1747            a << b);
1748     printf("shiftc: %Ld %Ld %Ld\n",
1749            (unsigned long long)a >> 3,
1750            a >> 3,
1751            a << 3);
1752     printf("shiftc: %Ld %Ld %Ld\n",
1753            (unsigned long long)a >> 35,
1754            a >> 35,
1755            a << 35);
1756 }
1757
1758 void llfloat(void)
1759 {
1760     float fa;
1761     double da;
1762     long double lda;
1763     long long la, lb, lc;
1764     unsigned long long ula, ulb, ulc;
1765     la = 0x12345678;
1766     ula = 0x72345678;
1767     la = (la << 20) | 0x12345;
1768     ula = ula << 33;
1769     printf("la=%Ld ula=%Lu\n", la, ula);
1770
1771     fa = la;
1772     da = la;
1773     lda = la;
1774     printf("lltof: %f %f %Lf\n", fa, da, lda);
1775
1776     la = fa;
1777     lb = da;
1778     lc = lda;
1779     printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
1780
1781     fa = ula;
1782     da = ula;
1783     lda = ula;
1784     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1785
1786     ula = fa;
1787     ulb = da;
1788     ulc = lda;
1789     printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
1790 }
1791
1792 long long llfunc1(int a)
1793 {
1794     return a * 2;
1795 }
1796
1797 struct S {
1798     int id;
1799     char item;
1800 };
1801
1802 long long int value(struct S *v)
1803 {
1804     return ((long long int)v->item);
1805 }
1806
1807 void longlong_test(void)
1808 {
1809     long long a, b, c;
1810     int ia;
1811     unsigned int ua;
1812     printf("longlong_test:\n");
1813     printf("sizeof(long long) = %d\n", sizeof(long long));
1814     ia = -1;
1815     ua = -2;
1816     a = ia;
1817     b = ua;
1818     printf("%Ld %Ld\n", a, b);
1819     printf("%Ld %Ld %Ld %Lx\n",
1820            (long long)1,
1821            (long long)-2,
1822            1LL,
1823            0x1234567812345679);
1824     a = llfunc1(-3);
1825     printf("%Ld\n", a);
1826
1827     lloptest(1000, 23);
1828     lloptest(0xff, 0x1234);
1829     b = 0x72345678 << 10;
1830     lloptest(-3, b);
1831     llshift(0x123, 5);
1832     llshift(-23, 5);
1833     b = 0x72345678LL << 10;
1834     llshift(b, 47);
1835
1836     llfloat();
1837 #if 1
1838     b = 0x12345678;
1839     a = -1;
1840     c = a + b;
1841     printf("%Lx\n", c);
1842 #endif
1843
1844     /* long long reg spill test */
1845     {
1846           struct S a;
1847
1848           a.item = 3;
1849           printf("%lld\n", value(&a));
1850     }
1851     lloptest(0x80000000, 0);
1852
1853     /* another long long spill test */
1854     {
1855         long long *p, v;
1856         v = 1;
1857         p = &v;
1858         p[0]++;
1859         printf("%lld\n", *p);
1860     }
1861
1862     a = 68719476720LL;
1863     b = 4294967295LL;
1864     printf("%d %d %d %d\n", a > b, a < b, a >= b, a <= b);
1865
1866     printf("%Ld\n", 0x123456789LLU);
1867 }
1868
1869 void manyarg_test(void)
1870 {
1871     long double ld = 1234567891234LL;
1872     printf("manyarg_test:\n");
1873     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1874            1, 2, 3, 4, 5, 6, 7, 8,
1875            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1876     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1877            "%Ld %Ld %f %f\n",
1878            1, 2, 3, 4, 5, 6, 7, 8,
1879            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1880            1234567891234LL, 987654321986LL,
1881            42.0, 43.0);
1882     printf("%Lf %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1883            "%Ld %Ld %f %f\n",
1884            ld, 1, 2, 3, 4, 5, 6, 7, 8,
1885            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1886            1234567891234LL, 987654321986LL,
1887            42.0, 43.0);
1888     /* XXX: known bug of x86-64 */
1889 #ifndef __x86_64__
1890     printf("%d %d %d %d %d %d %d %d %Lf\n",
1891            1, 2, 3, 4, 5, 6, 7, 8, ld);
1892     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1893            "%Ld %Ld %f %f %Lf\n",
1894            1, 2, 3, 4, 5, 6, 7, 8,
1895            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1896            1234567891234LL, 987654321986LL,
1897            42.0, 43.0, ld);
1898     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1899            "%Lf %Ld %Ld %f %f %Lf\n",
1900            1, 2, 3, 4, 5, 6, 7, 8,
1901            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1902            ld, 1234567891234LL, 987654321986LL,
1903            42.0, 43.0, ld);
1904 #endif
1905 }
1906
1907 void vprintf1(const char *fmt, ...)
1908 {
1909     va_list ap, aq;
1910     const char *p;
1911     int c, i;
1912     double d;
1913     long long ll;
1914     long double ld;
1915
1916     va_start(aq, fmt);
1917     va_copy(ap, aq);
1918
1919     p = fmt;
1920     for(;;) {
1921         c = *p;
1922         if (c == '\0')
1923             break;
1924         p++;
1925         if (c == '%') {
1926             c = *p;
1927             switch(c) {
1928             case '\0':
1929                 goto the_end;
1930             case 'd':
1931                 i = va_arg(ap, int);
1932                 printf("%d", i);
1933                 break;
1934             case 'f':
1935                 d = va_arg(ap, double);
1936                 printf("%f", d);
1937                 break;
1938             case 'l':
1939                 ll = va_arg(ap, long long);
1940                 printf("%Ld", ll);
1941                 break;
1942             case 'F':
1943                 ld = va_arg(ap, long double);
1944                 printf("%Lf", ld);
1945                 break;
1946             }
1947             p++;
1948         } else {
1949             putchar(c);
1950         }
1951     }
1952  the_end:
1953     va_end(aq);
1954     va_end(ap);
1955 }
1956
1957 struct myspace {
1958     short int profile;
1959 };
1960
1961 void stdarg_for_struct(struct myspace bob, ...)
1962 {
1963     struct myspace george, bill;
1964     va_list ap;
1965     short int validate;
1966
1967     va_start(ap, bob);
1968     bill     = va_arg(ap, struct myspace);
1969     george   = va_arg(ap, struct myspace);
1970     validate = va_arg(ap, int);
1971     printf("stdarg_for_struct: %d %d %d %d\n",
1972            bob.profile, bill.profile, george.profile, validate);
1973     va_end(ap);
1974 }
1975
1976 void stdarg_test(void)
1977 {
1978     long double ld = 1234567891234LL;
1979     struct myspace bob;
1980
1981     vprintf1("%d %d %d\n", 1, 2, 3);
1982     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
1983     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
1984     vprintf1("%F %F %F\n", 1.2L, 2.3L, 3.4L);
1985 #ifdef __x86_64__
1986     /* a bug of x86's TCC */
1987     vprintf1("%d %f %l %F %d %f %l %F\n",
1988              1, 1.2, 3L, 4.5L, 6, 7.8, 9L, 0.1L);
1989 #endif
1990     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f\n",
1991              1, 2, 3, 4, 5, 6, 7, 8,
1992              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8);
1993     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1994              1, 2, 3, 4, 5, 6, 7, 8,
1995              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1996     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1997              "%l %l %f %f\n",
1998              1, 2, 3, 4, 5, 6, 7, 8,
1999              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2000              1234567891234LL, 987654321986LL,
2001              42.0, 43.0);
2002     vprintf1("%F %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2003              "%l %l %f %f\n",
2004              ld, 1, 2, 3, 4, 5, 6, 7, 8,
2005              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2006              1234567891234LL, 987654321986LL,
2007              42.0, 43.0);
2008     vprintf1("%d %d %d %d %d %d %d %d %F\n",
2009              1, 2, 3, 4, 5, 6, 7, 8, ld);
2010     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2011              "%l %l %f %f %F\n",
2012              1, 2, 3, 4, 5, 6, 7, 8,
2013              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2014              1234567891234LL, 987654321986LL,
2015              42.0, 43.0, ld);
2016     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2017              "%F %l %l %f %f %F\n",
2018              1, 2, 3, 4, 5, 6, 7, 8,
2019              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2020              ld, 1234567891234LL, 987654321986LL,
2021              42.0, 43.0, ld);
2022
2023     bob.profile = 42;
2024     stdarg_for_struct(bob, bob, bob, bob.profile);
2025 }
2026
2027 void whitespace_test(void)
2028 {
2029     char *str;
2030
2031 \f\v
#if 1
2032     pri\
2033 ntf("whitspace:\n");\f\v
2034 #endif
2035     pf("N=%d\n", 2);
2036
2037 #ifdef CORRECT_CR_HANDLING
2038     pri\
2039 ntf("aaa=%d\n", 3);
2040 #endif
2041
2042     pri\
2043 \
2044 ntf("min=%d\n", 4);
2045
2046 #ifdef ACCEPT_CR_IN_STRINGS
2047     printf("len1=%d\n", strlen("
2048 "));
2049 #ifdef CORRECT_CR_HANDLING
2050     str = "
2051 ";
2052     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
2053 #endif
2054     printf("len1=%d\n", strlen("
a
2055 "));
2056 #endif /* ACCEPT_CR_IN_STRINGS */
2057 }
2058
2059 int reltab[3] = { 1, 2, 3 };
2060
2061 int *rel1 = &reltab[1];
2062 int *rel2 = &reltab[2];
2063
2064 void relocation_test(void)
2065 {
2066     printf("*rel1=%d\n", *rel1);
2067     printf("*rel2=%d\n", *rel2);
2068 }
2069
2070 void old_style_f(a,b,c)
2071      int a, b;
2072      double c;
2073 {
2074     printf("a=%d b=%d b=%f\n", a, b, c);
2075 }
2076
2077 void decl_func1(int cmpfn())
2078 {
2079     printf("cmpfn=%lx\n", (long)cmpfn);
2080 }
2081
2082 void decl_func2(cmpfn)
2083 int cmpfn();
2084 {
2085     printf("cmpfn=%lx\n", (long)cmpfn);
2086 }
2087
2088 void old_style_function(void)
2089 {
2090     old_style_f((void *)1, 2, 3.0);
2091     decl_func1(NULL);
2092     decl_func2(NULL);
2093 }
2094
2095 void alloca_test()
2096 {
2097 #if defined __i386__ || defined __x86_64__
2098     char *p = alloca(16);
2099     strcpy(p,"123456789012345");
2100     printf("alloca: p is %s\n", p);
2101     char *demo = "This is only a test.\n";
2102     /* Test alloca embedded in a larger expression */
2103     printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
2104 #endif
2105 }
2106
2107 void *bounds_checking_is_enabled()
2108 {
2109     char ca[10], *cp = ca-1;
2110     return (ca != cp + 1) ? cp : NULL;
2111 }
2112
2113 typedef int constant_negative_array_size_as_compile_time_assertion_idiom[(1 ? 2 : 0) - 1];
2114
2115 void c99_vla_test(int size1, int size2)
2116 {
2117 #if defined __i386__ || defined __x86_64__
2118     int size = size1 * size2;
2119     int tab1[size][2], tab2[10][2];
2120     void *tab1_ptr, *tab2_ptr, *bad_ptr;
2121
2122     /* "size" should have been 'captured' at tab1 declaration,
2123         so modifying it should have no effect on VLA behaviour. */
2124     size = size-1;
2125
2126     printf("Test C99 VLA 1 (sizeof): ");
2127     printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
2128     tab1_ptr = tab1;
2129     tab2_ptr = tab2;
2130     printf("Test C99 VLA 2 (ptrs substract): ");
2131     printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
2132     printf("Test C99 VLA 3 (ptr add): ");
2133     printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
2134     printf("Test C99 VLA 4 (ptr access): ");
2135     tab1[size1][1] = 42;
2136     printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
2137
2138     printf("Test C99 VLA 5 (bounds checking (might be disabled)): ");
2139     if (bad_ptr = bounds_checking_is_enabled()) {
2140         int *t1 = &tab1[size1 * size2 - 1][3];
2141         int *t2 = &tab2[9][3];
2142         printf("%s ", bad_ptr == t1 ? "PASSED" : "FAILED");
2143         printf("%s ", bad_ptr == t2 ? "PASSED" : "FAILED");
2144
2145         char*c1 = 1 + sizeof(tab1) + (char*)tab1;
2146         char*c2 = 1 + sizeof(tab2) + (char*)tab2;
2147         printf("%s ", bad_ptr == c1 ? "PASSED" : "FAILED");
2148         printf("%s ", bad_ptr == c2 ? "PASSED" : "FAILED");
2149
2150         int *i1 = tab1[-1];
2151         int *i2 = tab2[-1];
2152         printf("%s ", bad_ptr == i1 ? "PASSED" : "FAILED");
2153         printf("%s ", bad_ptr == i2 ? "PASSED" : "FAILED");
2154
2155         int *x1 = tab1[size1 * size2 + 1];
2156         int *x2 = tab2[10 + 1];
2157         printf("%s ", bad_ptr == x1 ? "PASSED" : "FAILED");
2158         printf("%s ", bad_ptr == x2 ? "PASSED" : "FAILED");
2159     } else {
2160         printf("PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED ");
2161     }
2162     printf("\n");
2163 #endif
2164 }
2165
2166 typedef __SIZE_TYPE__ uintptr_t;
2167
2168 void sizeof_test(void)
2169 {
2170     int a;
2171     int **ptr;
2172
2173     printf("sizeof(int) = %d\n", sizeof(int));
2174     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
2175     printf("sizeof(long) = %d\n", sizeof(long));
2176     printf("sizeof(unsigned long) = %d\n", sizeof(unsigned long));
2177     printf("sizeof(short) = %d\n", sizeof(short));
2178     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
2179     printf("sizeof(char) = %d\n", sizeof(char));
2180     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
2181     printf("sizeof(func) = %d\n", sizeof sizeof_test());
2182     a = 1;
2183     printf("sizeof(a++) = %d\n", sizeof a++);
2184     printf("a=%d\n", a);
2185     ptr = NULL;
2186     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
2187
2188     /* The type of sizeof should be as large as a pointer, actually
2189        it should be size_t.  */
2190     printf("sizeof(sizeof(int) = %d\n", sizeof(sizeof(int)));
2191     uintptr_t t = 1;
2192     uintptr_t t2;
2193     /* Effectively <<32, but defined also on 32bit machines.  */
2194     t <<= 16;
2195     t <<= 16;
2196     t++;
2197     /* This checks that sizeof really can be used to manipulate
2198        uintptr_t objects, without truncation.  */
2199     t2 = t & -sizeof(uintptr_t);
2200     printf ("%lu %lu\n", t, t2);
2201
2202     /* some alignof tests */
2203     printf("__alignof__(int) = %d\n", __alignof__(int));
2204     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
2205     printf("__alignof__(short) = %d\n", __alignof__(short));
2206     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
2207     printf("__alignof__(char) = %d\n", __alignof__(char));
2208     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
2209     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
2210 }
2211
2212 void typeof_test(void)
2213 {
2214     double a;
2215     typeof(a) b;
2216     typeof(float) c;
2217
2218     a = 1.5;
2219     b = 2.5;
2220     c = 3.5;
2221     printf("a=%f b=%f c=%f\n", a, b, c);
2222 }
2223
2224 void statement_expr_test(void)
2225 {
2226     int a, i;
2227
2228     a = 0;
2229     for(i=0;i<10;i++) {
2230         a += 1 +
2231             ( { int b, j;
2232                 b = 0;
2233                 for(j=0;j<5;j++)
2234                     b += j; b;
2235             } );
2236     }
2237     printf("a=%d\n", a);
2238
2239 }
2240
2241 void local_label_test(void)
2242 {
2243     int a;
2244     goto l1;
2245  l2:
2246     a = 1 + ({
2247         __label__ l1, l2, l3, l4;
2248         goto l1;
2249     l4:
2250         printf("aa1\n");
2251         goto l3;
2252     l2:
2253         printf("aa3\n");
2254         goto l4;
2255     l1:
2256         printf("aa2\n");
2257         goto l2;
2258     l3:;
2259         1;
2260     });
2261     printf("a=%d\n", a);
2262     return;
2263  l4:
2264     printf("bb1\n");
2265     goto l2;
2266  l1:
2267     printf("bb2\n");
2268     goto l4;
2269 }
2270
2271 /* inline assembler test */
2272 #ifdef __i386__
2273
2274 /* from linux kernel */
2275 static char * strncat1(char * dest,const char * src,size_t count)
2276 {
2277 int d0, d1, d2, d3;
2278 __asm__ __volatile__(
2279         "repne\n\t"
2280         "scasb\n\t"
2281         "decl %1\n\t"
2282         "movl %8,%3\n"
2283         "1:\tdecl %3\n\t"
2284         "js 2f\n\t"
2285         "lodsb\n\t"
2286         "stosb\n\t"
2287         "testb %%al,%%al\n\t"
2288         "jne 1b\n"
2289         "2:\txorl %2,%2\n\t"
2290         "stosb"
2291         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2292         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2293         : "memory");
2294 return dest;
2295 }
2296
2297 static char * strncat2(char * dest,const char * src,size_t count)
2298 {
2299 int d0, d1, d2, d3;
2300 __asm__ __volatile__(
2301         "repne scasb\n\t" /* one-line repne prefix + string op */
2302         "decl %1\n\t"
2303         "movl %8,%3\n"
2304         "1:\tdecl %3\n\t"
2305         "js 2f\n\t"
2306         "lodsb\n\t"
2307         "stosb\n\t"
2308         "testb %%al,%%al\n\t"
2309         "jne 1b\n"
2310         "2:\txorl %2,%2\n\t"
2311         "stosb"
2312         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2313         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2314         : "memory");
2315 return dest;
2316 }
2317
2318 static inline void * memcpy1(void * to, const void * from, size_t n)
2319 {
2320 int d0, d1, d2;
2321 __asm__ __volatile__(
2322         "rep ; movsl\n\t"
2323         "testb $2,%b4\n\t"
2324         "je 1f\n\t"
2325         "movsw\n"
2326         "1:\ttestb $1,%b4\n\t"
2327         "je 2f\n\t"
2328         "movsb\n"
2329         "2:"
2330         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2331         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2332         : "memory");
2333 return (to);
2334 }
2335
2336 static inline void * memcpy2(void * to, const void * from, size_t n)
2337 {
2338 int d0, d1, d2;
2339 __asm__ __volatile__(
2340         "rep movsl\n\t"  /* one-line rep prefix + string op */
2341         "testb $2,%b4\n\t"
2342         "je 1f\n\t"
2343         "movsw\n"
2344         "1:\ttestb $1,%b4\n\t"
2345         "je 2f\n\t"
2346         "movsb\n"
2347         "2:"
2348         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2349         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2350         : "memory");
2351 return (to);
2352 }
2353
2354 static __inline__ void sigaddset1(unsigned int *set, int _sig)
2355 {
2356         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2357 }
2358
2359 static __inline__ void sigdelset1(unsigned int *set, int _sig)
2360 {
2361         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2362 }
2363
2364 static __inline__ __const__ unsigned int swab32(unsigned int x)
2365 {
2366         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
2367                 "rorl $16,%0\n\t"       /* swap words           */
2368                 "xchgb %b0,%h0"         /* swap higher bytes    */
2369                 :"=q" (x)
2370                 : "0" (x));
2371         return x;
2372 }
2373
2374 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
2375 {
2376     unsigned long long res;
2377     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
2378     return res;
2379 }
2380
2381 static __inline__ unsigned long long inc64(unsigned long long a)
2382 {
2383     unsigned long long res;
2384     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
2385     return res;
2386 }
2387
2388 unsigned int set;
2389
2390 void asm_test(void)
2391 {
2392     char buf[128];
2393     unsigned int val;
2394
2395     printf("inline asm:\n");
2396     /* test the no operand case */
2397     asm volatile ("xorl %eax, %eax");
2398
2399     memcpy1(buf, "hello", 6);
2400     strncat1(buf, " worldXXXXX", 3);
2401     printf("%s\n", buf);
2402
2403     memcpy2(buf, "hello", 6);
2404     strncat2(buf, " worldXXXXX", 3);
2405     printf("%s\n", buf);
2406
2407     /* 'A' constraint test */
2408     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
2409     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
2410
2411     set = 0xff;
2412     sigdelset1(&set, 2);
2413     sigaddset1(&set, 16);
2414     /* NOTE: we test here if C labels are correctly restored after the
2415        asm statement */
2416     goto label1;
2417  label2:
2418     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
2419 #ifdef __GNUC__ // works strange with GCC 4.3
2420     set=0x1080fd;
2421 #endif
2422     printf("set=0x%x\n", set);
2423     val = 0x01020304;
2424     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
2425     return;
2426  label1:
2427     goto label2;
2428 }
2429
2430 #else
2431
2432 void asm_test(void)
2433 {
2434 }
2435
2436 #endif
2437
2438 #define COMPAT_TYPE(type1, type2) \
2439 {\
2440     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
2441            __builtin_types_compatible_p (type1, type2));\
2442 }
2443
2444 int constant_p_var;
2445
2446 void builtin_test(void)
2447 {
2448 #if GCC_MAJOR >= 3
2449     COMPAT_TYPE(int, int);
2450     COMPAT_TYPE(int, unsigned int);
2451     COMPAT_TYPE(int, char);
2452     COMPAT_TYPE(int, const int);
2453     COMPAT_TYPE(int, volatile int);
2454     COMPAT_TYPE(int *, int *);
2455     COMPAT_TYPE(int *, void *);
2456     COMPAT_TYPE(int *, const int *);
2457     COMPAT_TYPE(char *, unsigned char *);
2458 /* space is needed because tcc preprocessor introduces a space between each token */
2459     COMPAT_TYPE(char * *, void *);
2460 #endif
2461     printf("res = %d\n", __builtin_constant_p(1));
2462     printf("res = %d\n", __builtin_constant_p(1 + 2));
2463     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
2464     printf("res = %d\n", __builtin_constant_p(constant_p_var));
2465 }
2466
2467
2468 extern int __attribute__((weak)) weak_f1(void);
2469 extern int __attribute__((weak)) weak_f2(void);
2470 extern int                       weak_f3(void);
2471 extern int __attribute__((weak)) weak_v1;
2472 extern int __attribute__((weak)) weak_v2;
2473 extern int                       weak_v3;
2474
2475 extern int                           (*weak_fpa)() __attribute__((weak));
2476 extern int __attribute__((weak))     (*weak_fpb)();
2477 extern     __attribute__((weak)) int (*weak_fpc)();
2478
2479 extern int                     weak_asm_f1(void) asm("weak_asm_f1x") __attribute((weak));
2480 extern int __attribute((weak)) weak_asm_f2(void) asm("weak_asm_f2x")                    ;
2481 extern int __attribute((weak)) weak_asm_f3(void) asm("weak_asm_f3x") __attribute((weak));
2482 extern int                     weak_asm_v1       asm("weak_asm_v1x") __attribute((weak));
2483 extern int __attribute((weak)) weak_asm_v2       asm("weak_asm_v2x")                    ;
2484 extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak));
2485
2486 static const size_t dummy = 0;
2487 extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy")));
2488 extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2;
2489 extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3;
2490
2491 int some_lib_func(void);
2492 int dummy_impl_of_slf(void) { return 444; }
2493 int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf")));
2494
2495 int weak_toolate() __attribute__((weak));
2496 int weak_toolate() { return 0; }
2497
2498 void __attribute__((weak)) weak_test(void)
2499 {
2500         printf("weak_f1=%d\n", weak_f1 ? weak_f1() : 123);
2501         printf("weak_f2=%d\n", weak_f2 ? weak_f2() : 123);
2502         printf("weak_f3=%d\n", weak_f3 ? weak_f3() : 123);
2503         printf("weak_v1=%d\n",&weak_v1 ? weak_v1   : 123);
2504         printf("weak_v2=%d\n",&weak_v2 ? weak_v2   : 123);
2505         printf("weak_v3=%d\n",&weak_v3 ? weak_v3   : 123);
2506
2507         printf("weak_fpa=%d\n",&weak_fpa ? weak_fpa() : 123);
2508         printf("weak_fpb=%d\n",&weak_fpb ? weak_fpb() : 123);
2509         printf("weak_fpc=%d\n",&weak_fpc ? weak_fpc() : 123);
2510
2511         printf("weak_asm_f1=%d\n", weak_asm_f1 != NULL);
2512         printf("weak_asm_f2=%d\n", weak_asm_f2 != NULL);
2513         printf("weak_asm_f3=%d\n", weak_asm_f3 != NULL);
2514         printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL);
2515         printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL);
2516         printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL);
2517 }
2518
2519 int __attribute__((weak)) weak_f2() { return 222; }
2520 int __attribute__((weak)) weak_f3() { return 333; }
2521 int __attribute__((weak)) weak_v2 = 222;
2522 int __attribute__((weak)) weak_v3 = 333;
2523
2524 void const_func(const int a)
2525 {
2526 }
2527
2528 void const_warn_test(void)
2529 {
2530     const_func(1);
2531 }
2532
2533 struct condstruct {
2534   int i;
2535 };
2536
2537 int getme (struct condstruct *s, int i)
2538 {
2539   int i1 = (i == 0 ? 0 : s)->i;
2540   int i2 = (i == 0 ? s : 0)->i;
2541   int i3 = (i == 0 ? (void*)0 : s)->i;
2542   int i4 = (i == 0 ? s : (void*)0)->i;
2543   return i1 + i2 + i3 + i4;
2544 }
2545
2546 struct global_data
2547 {
2548   int a[40];
2549   int *b[40];
2550 };
2551
2552 struct global_data global_data;
2553
2554 int global_data_getstuff (int *, int);
2555
2556 void global_data_callit (int i)
2557 {
2558   *global_data.b[i] = global_data_getstuff (global_data.b[i], 1);
2559 }
2560
2561 int global_data_getstuff (int *p, int i)
2562 {
2563   return *p + i;
2564 }
2565
2566 void global_data_test (void)
2567 {
2568   global_data.a[0] = 42;
2569   global_data.b[0] = &global_data.a[0];
2570   global_data_callit (0);
2571   printf ("%d\n", global_data.a[0]);
2572 }
2573
2574 struct cmpcmpS
2575 {
2576   unsigned char fill : 3;
2577   unsigned char b1 : 1;
2578   unsigned char b2 : 1;
2579   unsigned char fill2 : 3;
2580 };
2581
2582 int glob1, glob2, glob3;
2583
2584 void compare_comparisons (struct cmpcmpS *s)
2585 {
2586   if (s->b1 != (glob1 == glob2)
2587       || (s->b2 != (glob1 == glob3)))
2588     printf ("comparing comparisons broken\n");
2589 }
2590
2591 void cmp_comparison_test(void)
2592 {
2593   struct cmpcmpS s;
2594   s.b1 = 1;
2595   glob1 = 42; glob2 = 42;
2596   s.b2 = 0;
2597   glob3 = 43;
2598   compare_comparisons (&s);
2599   return 0;
2600 }
2601
2602 int fcompare (double a, double b, int code)
2603 {
2604   switch (code) {
2605     case 0: return a == b;
2606     case 1: return a != b;
2607     case 2: return a < b;
2608     case 3: return a >= b;
2609     case 4: return a > b;
2610     case 5: return a <= b;
2611   }
2612 }
2613
2614 void math_cmp_test(void)
2615 {
2616   double nan = 0.0/0.0;
2617   double one = 1.0;
2618   double two = 2.0;
2619   int comp = 0;
2620 #define bug(a,b,op,iop,part) printf("Test broken: %s %s %s %s %d\n", #a, #b, #op, #iop, part)
2621
2622   /* This asserts that "a op b" is _not_ true, but "a iop b" is true.
2623      And it does this in various ways so that all code generation paths
2624      are checked (generating inverted tests, or non-inverted tests, or
2625      producing a 0/1 value without jumps (that's done in the fcompare
2626      function).  */
2627 #define FCMP(a,b,op,iop,code) \
2628   if (fcompare (a,b,code))    \
2629     bug (a,b,op,iop,1); \
2630   if (a op b) \
2631     bug (a,b,op,iop,2); \
2632   if (a iop b) \
2633     ; \
2634   else \
2635     bug (a,b,op,iop,3); \
2636   if ((a op b) || comp) \
2637     bug (a,b,op,iop,4); \
2638   if ((a iop b) || comp) \
2639     ; \
2640   else \
2641     bug (a,b,op,iop,5);
2642
2643   /* Equality tests.  */
2644   FCMP(nan, nan, ==, !=, 0);
2645   FCMP(one, two, ==, !=, 0);
2646   FCMP(one, one, !=, ==, 1);
2647   /* Non-equality is a bit special.  */
2648   if (!fcompare (nan, nan, 1))
2649     bug (nan, nan, !=, ==, 6);
2650
2651   /* Relational tests on numbers.  */
2652   FCMP(two, one, <, >=, 2);
2653   FCMP(one, two, >=, <, 3);
2654   FCMP(one, two, >, <=, 4);
2655   FCMP(two, one, <=, >, 5);
2656
2657   /* Relational tests on NaNs.  Note that the inverse op here is
2658      always !=, there's no operator in C that is equivalent to !(a < b),
2659      when NaNs are involved, same for the other relational ops.  */
2660   FCMP(nan, nan, <, !=, 2);
2661   FCMP(nan, nan, >=, !=, 3);
2662   FCMP(nan, nan, >, !=, 4);
2663   FCMP(nan, nan, <=, !=, 5);
2664 }
2665
2666 double get100 () { return 100.0; }
2667
2668 void callsave_test(void)
2669 {
2670 #if defined __i386__ || defined __x86_64__
2671   int i, s; double *d; double t;
2672   s = sizeof (double);
2673   printf ("callsavetest: %d\n", s);
2674   d = alloca (sizeof(double));
2675   d[0] = 10.0;
2676   /* x86-64 had a bug were the next call to get100 would evict
2677      the lvalue &d[0] as VT_LLOCAL, and the reload would be done
2678      in int type, not pointer type.  When alloca returns a pointer
2679      with the high 32 bit set (which is likely on x86-64) the access
2680      generates a segfault.  */
2681   i = d[0] > get100 ();
2682   printf ("%d\n", i);
2683 #endif
2684 }
2685
2686
2687 void bfa3(ptrdiff_t str_offset)
2688 {
2689     printf("bfa3: %s\n", (char *)__builtin_frame_address(3) + str_offset);
2690 }
2691 void bfa2(ptrdiff_t str_offset)
2692 {
2693     printf("bfa2: %s\n", (char *)__builtin_frame_address(2) + str_offset);
2694     bfa3(str_offset);
2695 }
2696 void bfa1(ptrdiff_t str_offset)
2697 {
2698     printf("bfa1: %s\n", (char *)__builtin_frame_address(1) + str_offset);
2699     bfa2(str_offset);
2700 }
2701
2702 void builtin_frame_address_test(void)
2703 {
2704     char str[] = "__builtin_frame_address";
2705     char *fp0 = __builtin_frame_address(0);
2706
2707     printf("str: %s\n", str);
2708     bfa1(str-fp0);
2709 }