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 #if defined(_WIN32)
  20 #define LONG_LONG_FORMAT "%lld"
  21 #define ULONG_LONG_FORMAT "%llu"
  22 #else
  23 #define LONG_LONG_FORMAT "%Ld"
  24 #define ULONG_LONG_FORMAT "%Lu"
  25 #endif
  26
  27 // MinGW has 80-bit rather than 64-bit long double which isn't compatible with TCC or MSVC
  28 #if defined(_WIN32) && defined(__GNUC__)
  29 #define LONG_DOUBLE double
  30 #define LONG_DOUBLE_LITERAL(x) x
  31 #else
  32 #define LONG_DOUBLE long double
  33 #define LONG_DOUBLE_LITERAL(x) x ## L
  34 #endif
  35
  36 /* deprecated and no longer supported in gcc 3.3 */
  37 //#define ACCEPT_CR_IN_STRINGS
  38
  39 /* __VA_ARGS__ and __func__ support */
  40 #define C99_MACROS
  41
  42 /* test various include syntaxes */
  43
  44 #define TCCLIB_INC <tcclib.h>
  45 #define TCCLIB_INC1 <tcclib
  46 #define TCCLIB_INC2 h>
  47 #define TCCLIB_INC3 "tcclib"
  48
  49 #include TCCLIB_INC
  50
  51 #include TCCLIB_INC1.TCCLIB_INC2
  52
  53 #include TCCLIB_INC1.h>
  54
  55 /* gcc 3.2 does not accept that (bug ?) */
  56 //#include TCCLIB_INC3 ".h"
  57
  58 #include <tcclib.h>
  59
  60 #include "tcclib.h"
  61
  62 void string_test();
  63 void expr_test();
  64 void macro_test();
  65 void recursive_macro_test();
  66 void scope_test();
  67 void forward_test();
  68 void funcptr_test();
  69 void loop_test();
  70 void switch_test();
  71 void goto_test();
  72 void enum_test();
  73 void typedef_test();
  74 void struct_test();
  75 void array_test();
  76 void expr_ptr_test();
  77 void bool_test();
  78 void expr2_test();
  79 void constant_expr_test();
  80 void expr_cmp_test();
  81 void char_short_test();
  82 void init_test(void);
  83 void compound_literal_test(void);
  84 int kr_test();
  85 void struct_assign_test(void);
  86 void cast_test(void);
  87 void bitfield_test(void);
  88 void c99_bool_test(void);
  89 void float_test(void);
  90 void longlong_test(void);
  91 void manyarg_test(void);
  92 void stdarg_test(void);
  93 void whitespace_test(void);
  94 void relocation_test(void);
  95 void old_style_function(void);
  96 void alloca_test(void);
  97 void c99_vla_test(int size1, int size2);
  98 void sizeof_test(void);
  99 void typeof_test(void);
 100 void local_label_test(void);
 101 void statement_expr_test(void);
 102 void asm_test(void);
 103 void builtin_test(void);
 104 void weak_test(void);
 105 void global_data_test(void);
 106 void cmp_comparison_test(void);
 107 void math_cmp_test(void);
 108 void callsave_test(void);
 109 void builtin_frame_address_test(void);
 110
 111 int fib(int n);
 112 void num(int n);
 113 void forward_ref(void);
 114 int isid(int c);
 115
 116 #define A 2
 117 #define N 1234 + A
 118 #define pf printf
 119 #define M1(a, b)  (a) + (b)
 120
 121 #define str\
 122 (s) # s
 123 #define glue(a, b) a ## b
 124 #define xglue(a, b) glue(a, b)
 125 #define HIGHLOW "hello"
 126 #define LOW LOW ", world"
 127
 128 static int onetwothree = 123;
 129 #define onetwothree4 onetwothree
 130 #define onetwothree xglue(onetwothree,4)
 131
 132 #define min(a, b) ((a) < (b) ? (a) : (b))
 133
 134 #ifdef C99_MACROS
 135 #define dprintf(level,...) printf(__VA_ARGS__)
 136 #endif
 137
 138 /* gcc vararg macros */
 139 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 140
 141 #define MACRO_NOARGS()
 142
 143 #define AAA 3
 144 #undef AAA
 145 #define AAA 4
 146
 147 #if 1
 148 #define B3 1
 149 #elif 1
 150 #define B3 2
 151 #elif 0
 152 #define B3 3
 153 #else
 154 #define B3 4
 155 #endif
 156
 157 #define __INT64_C(c)    c ## LL
 158 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 159
 160 int qq(int x)
 161 {
 162     return x + 40;
 163 }
 164 #define qq(x) x
 165
 166 #define spin_lock(lock) do { } while (0)
 167 #define wq_spin_lock spin_lock
 168 #define TEST2() wq_spin_lock(a)
 169
 170 void macro_test(void)
 171 {
 172     printf("macro:\n");\f\v
 173     pf("N=%d\n", N);
 174     printf("aaa=%d\n", AAA);
 175
 176     printf("min=%d\n", min(1, min(2, -1)));
 177
 178     printf("s1=%s\n", glue(HIGH, LOW));
 179     printf("s2=%s\n", xglue(HIGH, LOW));
 180     printf("s3=%s\n", str("c"));
 181     printf("s4=%s\n", str(a1));
 182     printf("B3=%d\n", B3);
 183
 184     printf("onetwothree=%d\n", onetwothree);
 185
 186 #ifdef A
 187     printf("A defined\n");
 188 #endif
 189 #ifdef B
 190     printf("B defined\n");
 191 #endif
 192 #ifdef A
 193     printf("A defined\n");
 194 #else
 195     printf("A not defined\n");
 196 #endif
 197 #ifdef B
 198     printf("B defined\n");
 199 #else
 200     printf("B not defined\n");
 201 #endif
 202
 203 #ifdef A
 204     printf("A defined\n");
 205 #ifdef B
 206     printf("B1 defined\n");
 207 #else
 208     printf("B1 not defined\n");
 209 #endif
 210 #else
 211     printf("A not defined\n");
 212 #ifdef B
 213     printf("B2 defined\n");
 214 #else
 215     printf("B2 not defined\n");
 216 #endif
 217 #endif
 218
 219 #if 1+1
 220     printf("test true1\n");
 221 #endif
 222 #if 0
 223     printf("test true2\n");
 224 #endif
 225 #if 1-1
 226     printf("test true3\n");
 227 #endif
 228 #if defined(A)
 229     printf("test trueA\n");
 230 #endif
 231 #if defined(B)
 232     printf("test trueB\n");
 233 #endif
 234
 235 #if 0
 236     printf("test 0\n");
 237 #elif 0
 238     printf("test 1\n");
 239 #elif 2
 240     printf("test 2\n");
 241 #else
 242     printf("test 3\n");
 243 #endif
 244
 245     MACRO_NOARGS();
 246
 247 #ifdef __LINE__
 248     printf("__LINE__ defined\n");
 249 #endif
 250
 251     printf("__LINE__=%d __FILE__=%s\n",
 252            __LINE__, __FILE__);
 253 #line 200
 254     printf("__LINE__=%d __FILE__=%s\n",
 255            __LINE__, __FILE__);
 256 #line 203 "test"
 257     printf("__LINE__=%d __FILE__=%s\n",
 258            __LINE__, __FILE__);
 259 #line 227 "tcctest.c"
 260
 261     /* not strictly preprocessor, but we test it there */
 262 #ifdef C99_MACROS
 263     printf("__func__ = %s\n", __func__);
 264     dprintf(1, "vaarg=%d\n", 1);
 265 #endif
 266     dprintf1(1, "vaarg1\n");
 267     dprintf1(1, "vaarg1=%d\n", 2);
 268     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 269
 270     /* gcc extension */
 271     printf("func='%s'\n", __FUNCTION__);
 272
 273     /* complicated macros in glibc */
 274     printf("INT64_MIN=" LONG_LONG_FORMAT "\n", INT64_MIN);
 275     {
 276         int a;
 277         a = 1;
 278         glue(a+, +);
 279         printf("a=%d\n", a);
 280         glue(a <, <= 2);
 281         printf("a=%d\n", a);
 282     }
 283
 284     /* macro function with argument outside the macro string */
 285 #define MF_s MF_hello
 286 #define MF_hello(msg) printf("%s\n",msg)
 287
 288 #define MF_t printf("tralala\n"); MF_hello
 289
 290     MF_s("hi");
 291     MF_t("hi");
 292
 293     /* test macro substituion inside args (should not eat stream) */
 294     printf("qq=%d\n", qq(qq)(2));
 295
 296     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 297        null argument without a space. gcc 3.2 fixes that. */
 298
 299 #define qq1(x) 1
 300     printf("qq1=%d\n", qq1( ));
 301
 302     /* comment with stray handling *\
 303 /
 304        /* this is a valid *\/ comment */
 305        /* this is a valid comment *\*/
 306     //  this is a valid\
 307 comment
 308
 309     /* test function macro substitution when the function name is
 310        substituted */
 311     TEST2();
 312
 313     /* And again when the name and parenthes are separated by a
 314        comment.  */
 315     TEST2 /* the comment */ ();
 316 }
 317
 318
 319 static void print_num(char *fn, int line, int num) {
 320     printf("fn %s, line %d, num %d\n", fn, line, num);
 321 }
 322
 323 void recursive_macro_test(void)
 324 {
 325
 326 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 327 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 328 #define STB_WEAK        2               /* Weak symbol */
 329 #define ELFW(type) ELF##32##_##type
 330     printf("%d\n", ELFW(ST_INFO)(STB_WEAK, ELFW(ST_TYPE)(123)));
 331
 332 #define WRAP(x) x
 333
 334 #define print_num(x) print_num(__FILE__,__LINE__,x)
 335     print_num(123);
 336     WRAP(print_num(123));
 337     WRAP(WRAP(print_num(123)));
 338
 339 static struct recursive_macro { int rm_field; } G;
 340 #define rm_field (G.rm_field)
 341     printf("rm_field = %d\n", rm_field);
 342     printf("rm_field = %d\n", WRAP(rm_field));
 343     WRAP((printf("rm_field = %d %d\n", rm_field, WRAP(rm_field))));
 344 }
 345
 346 int op(a,b)
 347 {
 348     return a / b;
 349 }
 350
 351 int ret(a)
 352 {
 353     if (a == 2)
 354         return 1;
 355     if (a == 3)
 356         return 2;
 357     return 0;
 358 }
 359
 360 void ps(const char *s)
 361 {
 362     int c;
 363     while (1) {
 364         c = *s;
 365         if (c == 0)
 366             break;
 367         printf("%c", c);
 368         s++;
 369     }
 370 }
 371
 372 const char foo1_string[] = "\
 373 bar\n\
 374 test\14\
 375 1";
 376
 377 void string_test()
 378 {
 379     unsigned int b;
 380     printf("string:\n");
 381     printf("\141\1423\143\n");/* dezdez test */
 382     printf("\x41\x42\x43\x3a\n");
 383     printf("c=%c\n", 'r');
 384     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 385     printf("foo1_string='%s'\n", foo1_string);
 386 #if 0
 387     printf("wstring=%S\n", L"abc");
 388     printf("wstring=%S\n", L"abc" L"def" "ghi");
 389     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 390     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 391 #endif
 392     ps("test\n");
 393     b = 32;
 394     while ((b = b + 1) < 96) {
 395         printf("%c", b);
 396     }
 397     printf("\n");
 398     printf("fib=%d\n", fib(33));
 399     b = 262144;
 400     while (b != 0x80000000) {
 401         num(b);
 402         b = b * 2;
 403     }
 404 }
 405
 406 void loop_test()
 407 {
 408     int i;
 409     i = 0;
 410     while (i < 10)
 411         printf("%d", i++);
 412     printf("\n");
 413     for(i = 0; i < 10;i++)
 414         printf("%d", i);
 415     printf("\n");
 416     i = 0;
 417     do {
 418         printf("%d", i++);
 419     } while (i < 10);
 420     printf("\n");
 421
 422     char count = 123;
 423     /* c99 for loop init test */
 424     for (size_t count = 1; count < 3; count++)
 425         printf("count=%d\n", count);
 426     printf("count = %d\n", count);
 427
 428     /* break/continue tests */
 429     i = 0;
 430     while (1) {
 431         if (i == 6)
 432             break;
 433         i++;
 434         if (i == 3)
 435             continue;
 436         printf("%d", i);
 437     }
 438     printf("\n");
 439
 440     /* break/continue tests */
 441     i = 0;
 442     do {
 443         if (i == 6)
 444             break;
 445         i++;
 446         if (i == 3)
 447             continue;
 448         printf("%d", i);
 449     } while(1);
 450     printf("\n");
 451
 452     for(i = 0;i < 10;i++) {
 453         if (i == 3)
 454             continue;
 455         printf("%d", i);
 456     }
 457     printf("\n");
 458 }
 459
 460 typedef int typedef_and_label;
 461
 462 void goto_test()
 463 {
 464     int i;
 465     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 466
 467     printf("goto:\n");
 468     i = 0;
 469     /* This needs to parse as label, not as start of decl.  */
 470  typedef_and_label:
 471  s_loop:
 472     if (i >= 10)
 473         goto s_end;
 474     printf("%d", i);
 475     i++;
 476     goto s_loop;
 477  s_end:
 478     printf("\n");
 479
 480     /* we also test computed gotos (GCC extension) */
 481     for(i=0;i<3;i++) {
 482         goto *label_table[i];
 483     label1:
 484         printf("label1\n");
 485         goto next;
 486     label2:
 487         printf("label2\n");
 488         goto next;
 489     label3:
 490         printf("label3\n");
 491     next: ;
 492     }
 493 }
 494
 495 enum {
 496     E0,
 497     E1 = 2,
 498     E2 = 4,
 499     E3,
 500     E4,
 501 };
 502
 503 enum test {
 504     E5 = 1000,
 505 };
 506
 507 void enum_test()
 508 {
 509     enum test b1;
 510     printf("enum:\n%d %d %d %d %d %d\n",
 511            E0, E1, E2, E3, E4, E5);
 512     b1 = 1;
 513     printf("b1=%d\n", b1);
 514 }
 515
 516 typedef int *my_ptr;
 517
 518 typedef int mytype1;
 519 typedef int mytype2;
 520
 521 void typedef_test()
 522 {
 523     my_ptr a;
 524     mytype1 mytype2;
 525     int b;
 526
 527     a = &b;
 528     *a = 1234;
 529     printf("typedef:\n");
 530     printf("a=%d\n", *a);
 531     mytype2 = 2;
 532     printf("mytype2=%d\n", mytype2);
 533 }
 534
 535 void forward_test()
 536 {
 537     printf("forward:\n");
 538     forward_ref();
 539     forward_ref();
 540 }
 541
 542
 543 void forward_ref(void)
 544 {
 545     printf("forward ok\n");
 546 }
 547
 548 typedef struct struct1 {
 549     int f1;
 550     int f2, f3;
 551     union union1 {
 552         int v1;
 553         int v2;
 554     } u;
 555     char str[3];
 556 } struct1;
 557
 558 struct struct2 {
 559     int a;
 560     char b;
 561 };
 562
 563 union union2 {
 564     int w1;
 565     int w2;
 566 };
 567
 568 struct struct1 st1, st2;
 569
 570 int main(int argc, char **argv)
 571 {
 572     string_test();
 573     expr_test();
 574     macro_test();
 575     recursive_macro_test();
 576     scope_test();
 577     forward_test();
 578     funcptr_test();
 579     loop_test();
 580     switch_test();
 581     goto_test();
 582     enum_test();
 583     typedef_test();
 584     struct_test();
 585     array_test();
 586     expr_ptr_test();
 587     bool_test();
 588     expr2_test();
 589     constant_expr_test();
 590     expr_cmp_test();
 591     char_short_test();
 592     init_test();
 593     compound_literal_test();
 594     kr_test();
 595     struct_assign_test();
 596     cast_test();
 597     bitfield_test();
 598     c99_bool_test();
 599     float_test();
 600     longlong_test();
 601     manyarg_test();
 602     stdarg_test();
 603     whitespace_test();
 604     relocation_test();
 605     old_style_function();
 606     alloca_test();
 607     c99_vla_test(5, 2);
 608     sizeof_test();
 609     typeof_test();
 610     statement_expr_test();
 611     local_label_test();
 612     asm_test();
 613     builtin_test();
 614 #ifndef _WIN32
 615     weak_test();
 616 #endif
 617     global_data_test();
 618     cmp_comparison_test();
 619     math_cmp_test();
 620     callsave_test();
 621     builtin_frame_address_test();
 622     return 0;
 623 }
 624
 625 int tab[3];
 626 int tab2[3][2];
 627
 628 int g;
 629
 630 void f1(g)
 631 {
 632     printf("g1=%d\n", g);
 633 }
 634
 635 void scope_test()
 636 {
 637     printf("scope:\n");
 638     g = 2;
 639     f1(1);
 640     printf("g2=%d\n", g);
 641     {
 642         int g;
 643         g = 3;
 644         printf("g3=%d\n", g);
 645         {
 646             int g;
 647             g = 4;
 648             printf("g4=%d\n", g);
 649         }
 650     }
 651     printf("g5=%d\n", g);
 652 }
 653
 654 void array_test()
 655 {
 656     int i, j, a[4];
 657
 658     printf("array:\n");
 659     printf("sizeof(a) = %d\n", sizeof(a));
 660     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 661 #ifdef C99_MACROS
 662     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 663 #endif
 664     printf("sizeof tab %d\n", sizeof(tab));
 665     printf("sizeof tab2 %d\n", sizeof tab2);
 666     tab[0] = 1;
 667     tab[1] = 2;
 668     tab[2] = 3;
 669     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 670     for(i=0;i<3;i++)
 671         for(j=0;j<2;j++)
 672             tab2[i][j] = 10 * i + j;
 673     for(i=0;i<3*2;i++) {
 674         printf(" %3d", ((int *)tab2)[i]);
 675     }
 676     printf("\n");
 677     printf("sizeof(size_t)=%d\n", sizeof(size_t));
 678     printf("sizeof(ptrdiff_t)=%d\n", sizeof(ptrdiff_t));
 679 }
 680
 681 void expr_test()
 682 {
 683     int a, b;
 684     a = 0;
 685     printf("%d\n", a += 1);
 686     printf("%d\n", a -= 2);
 687     printf("%d\n", a *= 31232132);
 688     printf("%d\n", a /= 4);
 689     printf("%d\n", a %= 20);
 690     printf("%d\n", a &= 6);
 691     printf("%d\n", a ^= 7);
 692     printf("%d\n", a |= 8);
 693     printf("%d\n", a >>= 3);
 694     printf("%d\n", a <<= 4);
 695
 696     a = 22321;
 697     b = -22321;
 698     printf("%d\n", a + 1);
 699     printf("%d\n", a - 2);
 700     printf("%d\n", a * 312);
 701     printf("%d\n", a / 4);
 702     printf("%d\n", b / 4);
 703     printf("%d\n", (unsigned)b / 4);
 704     printf("%d\n", a % 20);
 705     printf("%d\n", b % 20);
 706     printf("%d\n", (unsigned)b % 20);
 707     printf("%d\n", a & 6);
 708     printf("%d\n", a ^ 7);
 709     printf("%d\n", a | 8);
 710     printf("%d\n", a >> 3);
 711     printf("%d\n", b >> 3);
 712     printf("%d\n", (unsigned)b >> 3);
 713     printf("%d\n", a << 4);
 714     printf("%d\n", ~a);
 715     printf("%d\n", -a);
 716     printf("%d\n", +a);
 717
 718     printf("%d\n", 12 + 1);
 719     printf("%d\n", 12 - 2);
 720     printf("%d\n", 12 * 312);
 721     printf("%d\n", 12 / 4);
 722     printf("%d\n", 12 % 20);
 723     printf("%d\n", 12 & 6);
 724     printf("%d\n", 12 ^ 7);
 725     printf("%d\n", 12 | 8);
 726     printf("%d\n", 12 >> 2);
 727     printf("%d\n", 12 << 4);
 728     printf("%d\n", ~12);
 729     printf("%d\n", -12);
 730     printf("%d\n", +12);
 731     printf("%d %d %d %d\n",
 732            isid('a'),
 733            isid('g'),
 734            isid('T'),
 735            isid('('));
 736 }
 737
 738 int isid(int c)
 739 {
 740     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 741 }
 742
 743 /**********************/
 744
 745 int vstack[10], *vstack_ptr;
 746
 747 void vpush(int vt, int vc)
 748 {
 749     *vstack_ptr++ = vt;
 750     *vstack_ptr++ = vc;
 751 }
 752
 753 void vpop(int *ft, int *fc)
 754 {
 755     *fc = *--vstack_ptr;
 756     *ft = *--vstack_ptr;
 757 }
 758
 759 void expr2_test()
 760 {
 761     int a, b;
 762
 763     printf("expr2:\n");
 764     vstack_ptr = vstack;
 765     vpush(1432432, 2);
 766     vstack_ptr[-2] &= ~0xffffff80;
 767     vpop(&a, &b);
 768     printf("res= %d %d\n", a, b);
 769 }
 770
 771 void constant_expr_test()
 772 {
 773     int a;
 774     printf("constant_expr:\n");
 775     a = 3;
 776     printf("%d\n", a * 16);
 777     printf("%d\n", a * 1);
 778     printf("%d\n", a + 0);
 779 }
 780
 781 int tab4[10];
 782
 783 void expr_ptr_test()
 784 {
 785     int *p, *q;
 786     int i = -1;
 787
 788     printf("expr_ptr:\n");
 789     p = tab4;
 790     q = tab4 + 10;
 791     printf("diff=%d\n", q - p);
 792     p++;
 793     printf("inc=%d\n", p - tab4);
 794     p--;
 795     printf("dec=%d\n", p - tab4);
 796     ++p;
 797     printf("inc=%d\n", p - tab4);
 798     --p;
 799     printf("dec=%d\n", p - tab4);
 800     printf("add=%d\n", p + 3 - tab4);
 801     printf("add=%d\n", 3 + p - tab4);
 802
 803     /* check if 64bit support is ok */
 804     q = p = 0;
 805     q += i;
 806     printf("%p %p %ld\n", q, p, p-q);
 807     printf("%d %d %d %d %d %d\n",
 808            p == q, p != q, p < q, p <= q, p >= q, p > q);
 809     i = 0xf0000000;
 810     p += i;
 811     printf("%p %p %ld\n", q, p, p-q);
 812     printf("%d %d %d %d %d %d\n",
 813            p == q, p != q, p < q, p <= q, p >= q, p > q);
 814     p = (int *)((char *)p + 0xf0000000);
 815     printf("%p %p %ld\n", q, p, p-q);
 816     printf("%d %d %d %d %d %d\n",
 817            p == q, p != q, p < q, p <= q, p >= q, p > q);
 818     p += 0xf0000000;
 819     printf("%p %p %ld\n", q, p, p-q);
 820     printf("%d %d %d %d %d %d\n",
 821            p == q, p != q, p < q, p <= q, p >= q, p > q);
 822     {
 823         struct size12 {
 824             int i, j, k;
 825         };
 826         struct size12 s[2], *sp = s;
 827         int i, j;
 828         sp->i = 42;
 829         sp++;
 830         j = -1;
 831         printf("%d\n", sp[j].i);
 832     }
 833 }
 834
 835 void expr_cmp_test()
 836 {
 837     int a, b;
 838     printf("constant_expr:\n");
 839     a = -1;
 840     b = 1;
 841     printf("%d\n", a == a);
 842     printf("%d\n", a != a);
 843
 844     printf("%d\n", a < b);
 845     printf("%d\n", a <= b);
 846     printf("%d\n", a <= a);
 847     printf("%d\n", b >= a);
 848     printf("%d\n", a >= a);
 849     printf("%d\n", b > a);
 850
 851     printf("%d\n", (unsigned)a < b);
 852     printf("%d\n", (unsigned)a <= b);
 853     printf("%d\n", (unsigned)a <= a);
 854     printf("%d\n", (unsigned)b >= a);
 855     printf("%d\n", (unsigned)a >= a);
 856     printf("%d\n", (unsigned)b > a);
 857 }
 858
 859 struct empty {
 860 };
 861
 862 struct aligntest1 {
 863     char a[10];
 864 };
 865
 866 struct aligntest2 {
 867     int a;
 868     char b[10];
 869 };
 870
 871 struct aligntest3 {
 872     double a, b;
 873 };
 874
 875 struct aligntest4 {
 876     double a[0];
 877 };
 878
 879 void struct_test()
 880 {
 881     struct1 *s;
 882     union union2 u;
 883
 884     printf("struct:\n");
 885     printf("sizes: %d %d %d %d\n",
 886            sizeof(struct struct1),
 887            sizeof(struct struct2),
 888            sizeof(union union1),
 889            sizeof(union union2));
 890     st1.f1 = 1;
 891     st1.f2 = 2;
 892     st1.f3 = 3;
 893     printf("st1: %d %d %d\n",
 894            st1.f1, st1.f2, st1.f3);
 895     st1.u.v1 = 1;
 896     st1.u.v2 = 2;
 897     printf("union1: %d\n", st1.u.v1);
 898     u.w1 = 1;
 899     u.w2 = 2;
 900     printf("union2: %d\n", u.w1);
 901     s = &st2;
 902     s->f1 = 3;
 903     s->f2 = 2;
 904     s->f3 = 1;
 905     printf("st2: %d %d %d\n",
 906            s->f1, s->f2, s->f3);
 907     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 908
 909     /* align / size tests */
 910     printf("aligntest1 sizeof=%d alignof=%d\n",
 911            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 912     printf("aligntest2 sizeof=%d alignof=%d\n",
 913            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 914     printf("aligntest3 sizeof=%d alignof=%d\n",
 915            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 916     printf("aligntest4 sizeof=%d alignof=%d\n",
 917            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 918
 919     /* empty structures (GCC extension) */
 920     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 921     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 922 }
 923
 924 /* XXX: depend on endianness */
 925 void char_short_test()
 926 {
 927     int var1, var2;
 928
 929     printf("char_short:\n");
 930
 931     var1 = 0x01020304;
 932     var2 = 0xfffefdfc;
 933     printf("s8=%d %d\n",
 934            *(char *)&var1, *(char *)&var2);
 935     printf("u8=%d %d\n",
 936            *(unsigned char *)&var1, *(unsigned char *)&var2);
 937     printf("s16=%d %d\n",
 938            *(short *)&var1, *(short *)&var2);
 939     printf("u16=%d %d\n",
 940            *(unsigned short *)&var1, *(unsigned short *)&var2);
 941     printf("s32=%d %d\n",
 942            *(int *)&var1, *(int *)&var2);
 943     printf("u32=%d %d\n",
 944            *(unsigned int *)&var1, *(unsigned int *)&var2);
 945     *(char *)&var1 = 0x08;
 946     printf("var1=%x\n", var1);
 947     *(short *)&var1 = 0x0809;
 948     printf("var1=%x\n", var1);
 949     *(int *)&var1 = 0x08090a0b;
 950     printf("var1=%x\n", var1);
 951 }
 952
 953 /******************/
 954
 955 typedef struct Sym {
 956     int v;
 957     int t;
 958     int c;
 959     struct Sym *next;
 960     struct Sym *prev;
 961 } Sym;
 962
 963 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 964 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 965
 966 static int toupper1(int a)
 967 {
 968     return TOUPPER(a);
 969 }
 970
 971 void bool_test()
 972 {
 973     int *s, a, b, t, f, i;
 974
 975     a = 0;
 976     s = (void*)0;
 977     printf("!s=%d\n", !s);
 978
 979     if (!s || !s[0])
 980         a = 1;
 981     printf("a=%d\n", a);
 982
 983     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 984     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 985     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 986 #if 1 && 1
 987     printf("a1\n");
 988 #endif
 989 #if 1 || 0
 990     printf("a2\n");
 991 #endif
 992 #if 1 ? 0 : 1
 993     printf("a3\n");
 994 #endif
 995 #if 0 ? 0 : 1
 996     printf("a4\n");
 997 #endif
 998
 999     a = 4;
1000     printf("b=%d\n", a + (0 ? 1 : a / 2));
1001
1002     /* test register spilling */
1003     a = 10;
1004     b = 10;
1005     a = (a + b) * ((a < b) ?
1006                    ((b - a) * (a - b)): a + b);
1007     printf("a=%d\n", a);
1008
1009     /* test complex || or && expressions */
1010     t = 1;
1011     f = 0;
1012     a = 32;
1013     printf("exp=%d\n", f == (32 <= a && a <= 3));
1014     printf("r=%d\n", (t || f) + (t && f));
1015
1016     /* test ? : cast */
1017     {
1018         int aspect_on;
1019         int aspect_native = 65536;
1020         double bfu_aspect = 1.0;
1021         int aspect;
1022         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
1023             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
1024             printf("aspect=%d\n", aspect);
1025         }
1026     }
1027
1028     /* test ? : GCC extension */
1029     {
1030         static int v1 = 34 ? : -1; /* constant case */
1031         static int v2 = 0 ? : -1; /* constant case */
1032         int a = 30;
1033
1034         printf("%d %d\n", v1, v2);
1035         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
1036     }
1037
1038     /* again complex expression */
1039     for(i=0;i<256;i++) {
1040         if (toupper1 (i) != TOUPPER (i))
1041             printf("error %d\n", i);
1042     }
1043 }
1044
1045 /* GCC accepts that */
1046 static int tab_reinit[];
1047 static int tab_reinit[10];
1048
1049 //int cinit1; /* a global variable can be defined several times without error ! */
1050 int cinit1;
1051 int cinit1;
1052 int cinit1 = 0;
1053 int *cinit2 = (int []){3, 2, 1};
1054
1055 void compound_literal_test(void)
1056 {
1057     int *p, i;
1058     char *q, *q3;
1059
1060     printf("compound_test:\n");
1061
1062     p = (int []){1, 2, 3};
1063     for(i=0;i<3;i++)
1064         printf(" %d", p[i]);
1065     printf("\n");
1066
1067     for(i=0;i<3;i++)
1068         printf("%d", cinit2[i]);
1069     printf("\n");
1070
1071     q = "tralala1";
1072     printf("q1=%s\n", q);
1073
1074     q = (char *){ "tralala2" };
1075     printf("q2=%s\n", q);
1076
1077     q3 = (char *){ q };
1078     printf("q3=%s\n", q3);
1079
1080     q = (char []){ "tralala3" };
1081     printf("q4=%s\n", q);
1082
1083 #ifdef ALL_ISOC99
1084     p = (int []){1, 2, cinit1 + 3};
1085     for(i=0;i<3;i++)
1086         printf(" %d", p[i]);
1087     printf("\n");
1088
1089     for(i=0;i<3;i++) {
1090         p = (int []){1, 2, 4 + i};
1091         printf("%d %d %d\n",
1092                p[0],
1093                p[1],
1094                p[2]);
1095     }
1096 #endif
1097 }
1098
1099 /* K & R protos */
1100
1101 kr_func1(a, b)
1102 {
1103     return a + b;
1104 }
1105
1106 int kr_func2(a, b)
1107 {
1108     return a + b;
1109 }
1110
1111 kr_test()
1112 {
1113     printf("kr_test:\n");
1114     printf("func1=%d\n", kr_func1(3, 4));
1115     printf("func2=%d\n", kr_func2(3, 4));
1116     return 0;
1117 }
1118
1119 void num(int n)
1120 {
1121     char *tab, *p;
1122     tab = (char*)malloc(20);
1123     p = tab;
1124     while (1) {
1125         *p = 48 + (n % 10);
1126         p++;
1127         n = n / 10;
1128         if (n == 0)
1129             break;
1130     }
1131     while (p != tab) {
1132         p--;
1133         printf("%c", *p);
1134     }
1135     printf("\n");
1136     free(tab);
1137 }
1138
1139 /* structure assignment tests */
1140 struct structa1 {
1141     int f1;
1142     char f2;
1143 };
1144
1145 struct structa1 ssta1;
1146
1147 void struct_assign_test1(struct structa1 s1, int t, float f)
1148 {
1149     printf("%d %d %d %f\n", s1.f1, s1.f2, t, f);
1150 }
1151
1152 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1153 {
1154     s1.f1 += t;
1155     s1.f2 -= t;
1156     return s1;
1157 }
1158
1159 void struct_assign_test(void)
1160 {
1161     struct S {
1162       struct structa1 lsta1, lsta2;
1163       int i;
1164     } s, *ps;
1165
1166     ps = &s;
1167     ps->i = 4;
1168 #if 0
1169     printf("struct_assign_test:\n");
1170
1171     s.lsta1.f1 = 1;
1172     s.lsta1.f2 = 2;
1173     printf("%d %d\n", s.lsta1.f1, s.lsta1.f2);
1174     s.lsta2 = s.lsta1;
1175     printf("%d %d\n", s.lsta2.f1, s.lsta2.f2);
1176 #else
1177     s.lsta2.f1 = 1;
1178     s.lsta2.f2 = 2;
1179 #endif
1180     struct_assign_test1(ps->lsta2, 3, 4.5);
1181
1182     printf("before call: %d %d\n", s.lsta2.f1, s.lsta2.f2);
1183     ps->lsta2 = struct_assign_test2(ps->lsta2, ps->i);
1184     printf("after call: %d %d\n", ps->lsta2.f1, ps->lsta2.f2);
1185
1186     static struct {
1187         void (*elem)();
1188     } t[] = {
1189         /* XXX: we should allow this even without braces */
1190         { struct_assign_test }
1191     };
1192     printf("%d\n", struct_assign_test == t[0].elem);
1193 }
1194
1195 /* casts to short/char */
1196
1197 void cast1(char a, short b, unsigned char c, unsigned short d)
1198 {
1199     printf("%d %d %d %d\n", a, b, c, d);
1200 }
1201
1202 char bcast;
1203 short scast;
1204
1205 void cast_test()
1206 {
1207     int a;
1208     char c;
1209     char tab[10];
1210     unsigned b,d;
1211     short s;
1212     char *p = NULL;
1213     p -= 0x700000000042;
1214
1215     printf("cast_test:\n");
1216     a = 0xfffff;
1217     cast1(a, a, a, a);
1218     a = 0xffffe;
1219     printf("%d %d %d %d\n",
1220            (char)(a + 1),
1221            (short)(a + 1),
1222            (unsigned char)(a + 1),
1223            (unsigned short)(a + 1));
1224     printf("%d %d %d %d\n",
1225            (char)0xfffff,
1226            (short)0xfffff,
1227            (unsigned char)0xfffff,
1228            (unsigned short)0xfffff);
1229
1230     a = (bcast = 128) + 1;
1231     printf("%d\n", a);
1232     a = (scast = 65536) + 1;
1233     printf("%d\n", a);
1234
1235     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1236
1237     /* test cast from unsigned to signed short to int */
1238     b = 0xf000;
1239     d = (short)b;
1240     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1241     b = 0xf0f0;
1242     d = (char)b;
1243     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1244
1245     /* test implicit int casting for array accesses */
1246     c = 0;
1247     tab[1] = 2;
1248     tab[c] = 1;
1249     printf("%d %d\n", tab[0], tab[1]);
1250
1251     /* test implicit casting on some operators */
1252     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1253     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1254     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1255
1256     /* from pointer to integer types */
1257     printf("%d %d %ld %ld %lld %lld\n",
1258            (int)p, (unsigned int)p,
1259            (long)p, (unsigned long)p,
1260            (long long)p, (unsigned long long)p);
1261
1262     /* from integers to pointers */
1263     printf("%p %p %p %p\n",
1264            (void *)a, (void *)b, (void *)c, (void *)d);
1265 }
1266
1267 /* initializers tests */
1268 struct structinit1 {
1269     int f1;
1270     char f2;
1271     short f3;
1272     int farray[3];
1273 };
1274
1275 int sinit1 = 2;
1276 int sinit2 = { 3 };
1277 int sinit3[3] = { 1, 2, {{3}}, };
1278 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1279 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1280 int sinit6[] = { 1, 2, 3 };
1281 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1282 char sinit8[] = "hello" "trala";
1283
1284 struct structinit1 sinit9 = { 1, 2, 3 };
1285 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1286 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1287 #ifdef ALL_ISOC99
1288                                .farray[0] = 10,
1289                                .farray[1] = 11,
1290                                .farray[2] = 12,
1291 #endif
1292 };
1293
1294 char *sinit12 = "hello world";
1295 char *sinit13[] = {
1296     "test1",
1297     "test2",
1298     "test3",
1299 };
1300 char sinit14[10] = { "abc" };
1301 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1302
1303 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1304
1305 struct bar {
1306         char *s;
1307         int len;
1308 } sinit17[] = {
1309         "a1", 4,
1310         "a2", 1
1311 };
1312
1313 int sinit18[10] = {
1314     [2 ... 5] = 20,
1315     2,
1316     [8] = 10,
1317 };
1318
1319 struct complexinit0 {
1320     int a;
1321     int b;
1322 };
1323
1324 struct complexinit {
1325     int a;
1326     const struct complexinit0 *b;
1327 };
1328
1329 const static struct complexinit cix[] = {
1330     [0] = {
1331         .a = 2000,
1332         .b = (const struct complexinit0[]) {
1333                 { 2001, 2002 },
1334                 { 2003, 2003 },
1335                 {}
1336         }
1337     }
1338 };
1339
1340 struct complexinit2 {
1341         int a;
1342         int b[];
1343 };
1344
1345 struct complexinit2 cix20;
1346
1347 struct complexinit2 cix21 = {
1348         .a = 3000,
1349         .b = { 3001, 3002, 3003 }
1350 };
1351
1352 struct complexinit2 cix22 = {
1353         .a = 4000,
1354         .b = { 4001, 4002, 4003, 4004, 4005, 4006 }
1355 };
1356
1357 void init_test(void)
1358 {
1359     int linit1 = 2;
1360     int linit2 = { 3 };
1361     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1362     int linit6[] = { 1, 2, 3 };
1363     int i, j;
1364     char linit8[] = "hello" "trala";
1365     int linit12[10] = { 1, 2 };
1366     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1367     char linit14[10] = "abc";
1368     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1369     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1370     int linit17 = sizeof(linit17);
1371
1372     printf("init_test:\n");
1373
1374     printf("sinit1=%d\n", sinit1);
1375     printf("sinit2=%d\n", sinit2);
1376     printf("sinit3=%d %d %d %d\n",
1377            sizeof(sinit3),
1378            sinit3[0],
1379            sinit3[1],
1380            sinit3[2]
1381            );
1382     printf("sinit6=%d\n", sizeof(sinit6));
1383     printf("sinit7=%d %d %d %d\n",
1384            sizeof(sinit7),
1385            sinit7[0],
1386            sinit7[1],
1387            sinit7[2]
1388            );
1389     printf("sinit8=%s\n", sinit8);
1390     printf("sinit9=%d %d %d\n",
1391            sinit9.f1,
1392            sinit9.f2,
1393            sinit9.f3
1394            );
1395     printf("sinit10=%d %d %d\n",
1396            sinit10.f1,
1397            sinit10.f2,
1398            sinit10.f3
1399            );
1400     printf("sinit11=%d %d %d %d %d %d\n",
1401            sinit11.f1,
1402            sinit11.f2,
1403            sinit11.f3,
1404            sinit11.farray[0],
1405            sinit11.farray[1],
1406            sinit11.farray[2]
1407            );
1408
1409     for(i=0;i<3;i++)
1410         for(j=0;j<2;j++)
1411             printf("[%d][%d] = %d %d %d\n",
1412                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1413     printf("linit1=%d\n", linit1);
1414     printf("linit2=%d\n", linit2);
1415     printf("linit6=%d\n", sizeof(linit6));
1416     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1417
1418     printf("sinit12=%s\n", sinit12);
1419     printf("sinit13=%d %s %s %s\n",
1420            sizeof(sinit13),
1421            sinit13[0],
1422            sinit13[1],
1423            sinit13[2]);
1424     printf("sinit14=%s\n", sinit14);
1425
1426     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1427     printf("\n");
1428     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1429     printf("\n");
1430     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1431     printf("\n");
1432     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1433     printf("\n");
1434     printf("%d %d %d %d\n",
1435            linit16.a1,
1436            linit16.a2,
1437            linit16.a3,
1438            linit16.a4);
1439     /* test that initialisation is done after variable declare */
1440     printf("linit17=%d\n", linit17);
1441     printf("sinit15=%d\n", sinit15[0]);
1442     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1443     printf("sinit17=%s %d %s %d\n",
1444            sinit17[0].s, sinit17[0].len,
1445            sinit17[1].s, sinit17[1].len);
1446     for(i=0;i<10;i++)
1447         printf("%x ", sinit18[i]);
1448     printf("\n");
1449     /* complex init check */
1450     printf("cix: %d %d %d %d %d %d %d\n",
1451         cix[0].a,
1452         cix[0].b[0].a, cix[0].b[0].b,
1453         cix[0].b[1].a, cix[0].b[1].b,
1454         cix[0].b[2].a, cix[0].b[2].b);
1455     printf("cix2: %d %d\n", cix21.b[2], cix22.b[5]);
1456     printf("sizeof cix20 %d, cix21 %d, sizeof cix22 %d\n", sizeof cix20, sizeof cix21, sizeof cix22);
1457 }
1458
1459
1460 void switch_test()
1461 {
1462     int i;
1463
1464     for(i=0;i<15;i++) {
1465         switch(i) {
1466         case 0:
1467         case 1:
1468             printf("a");
1469             break;
1470         default:
1471             printf("%d", i);
1472             break;
1473         case 8 ... 12:
1474             printf("c");
1475             break;
1476         case 3:
1477             printf("b");
1478             break;
1479         }
1480     }
1481     printf("\n");
1482 }
1483
1484 /* ISOC99 _Bool type */
1485 void c99_bool_test(void)
1486 {
1487 #ifdef BOOL_ISOC99
1488     int a;
1489     _Bool b;
1490
1491     printf("bool_test:\n");
1492     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1493     a = 3;
1494     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1495     b = 3;
1496     printf("b = %d\n", b);
1497     b++;
1498     printf("b = %d\n", b);
1499 #endif
1500 }
1501
1502 void bitfield_test(void)
1503 {
1504     int a;
1505     short sa;
1506     unsigned char ca;
1507     struct sbf1 {
1508         int f1 : 3;
1509         int : 2;
1510         int f2 : 1;
1511         int : 0;
1512         int f3 : 5;
1513         int f4 : 7;
1514         unsigned int f5 : 7;
1515     } st1;
1516     printf("bitfield_test:");
1517     printf("sizeof(st1) = %d\n", sizeof(st1));
1518
1519     st1.f1 = 3;
1520     st1.f2 = 1;
1521     st1.f3 = 15;
1522     a = 120;
1523     st1.f4 = a;
1524     st1.f5 = a;
1525     st1.f5++;
1526     printf("%d %d %d %d %d\n",
1527            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1528     sa = st1.f5;
1529     ca = st1.f5;
1530     printf("%d %d\n", sa, ca);
1531
1532     st1.f1 = 7;
1533     if (st1.f1 == -1)
1534         printf("st1.f1 == -1\n");
1535     else
1536         printf("st1.f1 != -1\n");
1537     if (st1.f2 == -1)
1538         printf("st1.f2 == -1\n");
1539     else
1540         printf("st1.f2 != -1\n");
1541
1542     /* bit sizes below must be bigger than 32 since GCC doesn't allow
1543        long-long bitfields whose size is not bigger than int */
1544     struct sbf2 {
1545         long long f1 : 45;
1546         long long : 2;
1547         long long f2 : 35;
1548         unsigned long long f3 : 38;
1549     } st2;
1550     st2.f1 = 0x123456789ULL;
1551     a = 120;
1552     st2.f2 = (long long)a << 25;
1553     st2.f3 = a;
1554     st2.f2++;
1555     printf("%lld %lld %lld\n", st2.f1, st2.f2, st2.f3);
1556 }
1557
1558 #ifdef __x86_64__
1559 #define FLOAT_FMT "%f\n"
1560 #else
1561 /* x86's float isn't compatible with GCC */
1562 #define FLOAT_FMT "%.5f\n"
1563 #endif
1564
1565 /* declare strto* functions as they are C99 */
1566 double strtod(const char *nptr, char **endptr);
1567
1568 #if defined(_WIN32)
1569 float strtof(const char *nptr, char **endptr) {return (float)strtod(nptr, endptr);}
1570 LONG_DOUBLE strtold(const char *nptr, char **endptr) {return (LONG_DOUBLE)strtod(nptr, endptr);}
1571 #else
1572 float strtof(const char *nptr, char **endptr);
1573 LONG_DOUBLE strtold(const char *nptr, char **endptr);
1574 #endif
1575
1576 #define FTEST(prefix, typename, type, fmt)\
1577 void prefix ## cmp(type a, type b)\
1578 {\
1579     printf("%d %d %d %d %d %d\n",\
1580            a == b,\
1581            a != b,\
1582            a < b,\
1583            a > b,\
1584            a >= b,\
1585            a <= b);\
1586     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1587            a,\
1588            b,\
1589            a + b,\
1590            a - b,\
1591            a * b,\
1592            a / b,\
1593            -a);\
1594     printf(fmt "\n", ++a);\
1595     printf(fmt "\n", a++);\
1596     printf(fmt "\n", a);\
1597     b = 0;\
1598     printf("%d %d\n", !a, !b);\
1599 }\
1600 void prefix ## fcast(type a)\
1601 {\
1602     float fa;\
1603     double da;\
1604     LONG_DOUBLE la;\
1605     int ia;\
1606     unsigned int ua;\
1607     type b;\
1608     fa = a;\
1609     da = a;\
1610     la = a;\
1611     printf("ftof: %f %f %Lf\n", fa, da, la);\
1612     ia = (int)a;\
1613     ua = (unsigned int)a;\
1614     printf("ftoi: %d %u\n", ia, ua);\
1615     ia = -1234;\
1616     ua = 0x81234500;\
1617     b = ia;\
1618     printf("itof: " fmt "\n", b);\
1619     b = ua;\
1620     printf("utof: " fmt "\n", b);\
1621 }\
1622 \
1623 float prefix ## retf(type a) { return a; }\
1624 double prefix ## retd(type a) { return a; }\
1625 LONG_DOUBLE prefix ## retld(type a) { return a; }\
1626 \
1627 void prefix ## call(void)\
1628 {\
1629     printf("float: " FLOAT_FMT, prefix ## retf(42.123456789));\
1630     printf("double: %f\n", prefix ## retd(42.123456789));\
1631     printf("long double: %Lf\n", prefix ## retld(42.123456789));\
1632     printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
1633 }\
1634 \
1635 void prefix ## test(void)\
1636 {\
1637     printf("testing '%s'\n", #typename);\
1638     prefix ## cmp(1, 2.5);\
1639     prefix ## cmp(2, 1.5);\
1640     prefix ## cmp(1, 1);\
1641     prefix ## fcast(234.6);\
1642     prefix ## fcast(-2334.6);\
1643     prefix ## call();\
1644 }
1645
1646 FTEST(f, float, float, "%f")
1647 FTEST(d, double, double, "%f")
1648 FTEST(ld, long double, LONG_DOUBLE, "%Lf")
1649
1650 double ftab1[3] = { 1.2, 3.4, -5.6 };
1651
1652
1653 void float_test(void)
1654 {
1655     float fa, fb;
1656     double da, db;
1657     int a;
1658     unsigned int b;
1659
1660     printf("float_test:\n");
1661     printf("sizeof(float) = %d\n", sizeof(float));
1662     printf("sizeof(double) = %d\n", sizeof(double));
1663     printf("sizeof(long double) = %d\n", sizeof(LONG_DOUBLE));
1664     ftest();
1665     dtest();
1666     ldtest();
1667     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1668     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1669     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1670     da = 123;
1671     printf("da=%f\n", da);
1672     fa = 123;
1673     printf("fa=%f\n", fa);
1674     a = 4000000000;
1675     da = a;
1676     printf("da = %f\n", da);
1677     b = 4000000000;
1678     db = b;
1679     printf("db = %f\n", db);
1680 }
1681
1682 int fib(int n)
1683 {
1684     if (n <= 2)
1685         return 1;
1686     else
1687         return fib(n-1) + fib(n-2);
1688 }
1689
1690 void funcptr_test()
1691 {
1692     void (*func)(int);
1693     int a;
1694     struct {
1695         int dummy;
1696         void (*func)(int);
1697     } st1;
1698
1699     printf("funcptr:\n");
1700     func = &num;
1701     (*func)(12345);
1702     func = num;
1703     a = 1;
1704     a = 1;
1705     func(12345);
1706     /* more complicated pointer computation */
1707     st1.func = num;
1708     st1.func(12346);
1709     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1710     printf("sizeof2 = %d\n", sizeof funcptr_test);
1711     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1712     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1713 }
1714
1715 void lloptest(long long a, long long b)
1716 {
1717     unsigned long long ua, ub;
1718
1719     ua = a;
1720     ub = b;
1721     /* arith */
1722     printf("arith: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1723            a + b,
1724            a - b,
1725            a * b);
1726
1727     if (b != 0) {
1728         printf("arith1: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1729            a / b,
1730            a % b);
1731     }
1732
1733     /* binary */
1734     printf("bin: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1735            a & b,
1736            a | b,
1737            a ^ b);
1738
1739     /* tests */
1740     printf("test: %d %d %d %d %d %d\n",
1741            a == b,
1742            a != b,
1743            a < b,
1744            a > b,
1745            a >= b,
1746            a <= b);
1747
1748     printf("utest: %d %d %d %d %d %d\n",
1749            ua == ub,
1750            ua != ub,
1751            ua < ub,
1752            ua > ub,
1753            ua >= ub,
1754            ua <= ub);
1755
1756     /* arith2 */
1757     a++;
1758     b++;
1759     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a, b);
1760     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a++, b++);
1761     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", --a, --b);
1762     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a, b);
1763     b = ub = 0;
1764     printf("not: %d %d %d %d\n", !a, !ua, !b, !ub);
1765 }
1766
1767 void llshift(long long a, int b)
1768 {
1769     printf("shift: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1770            (unsigned long long)a >> b,
1771            a >> b,
1772            a << b);
1773     printf("shiftc: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1774            (unsigned long long)a >> 3,
1775            a >> 3,
1776            a << 3);
1777     printf("shiftc: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1778            (unsigned long long)a >> 35,
1779            a >> 35,
1780            a << 35);
1781 }
1782
1783 void llfloat(void)
1784 {
1785     float fa;
1786     double da;
1787     LONG_DOUBLE lda;
1788     long long la, lb, lc;
1789     unsigned long long ula, ulb, ulc;
1790     la = 0x12345678;
1791     ula = 0x72345678;
1792     la = (la << 20) | 0x12345;
1793     ula = ula << 33;
1794     printf("la=" LONG_LONG_FORMAT " ula=" ULONG_LONG_FORMAT "\n", la, ula);
1795
1796     fa = la;
1797     da = la;
1798     lda = la;
1799     printf("lltof: %f %f %Lf\n", fa, da, lda);
1800
1801     la = fa;
1802     lb = da;
1803     lc = lda;
1804     printf("ftoll: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", la, lb, lc);
1805
1806     fa = ula;
1807     da = ula;
1808     lda = ula;
1809     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1810
1811     ula = fa;
1812     ulb = da;
1813     ulc = lda;
1814     printf("ftoull: " ULONG_LONG_FORMAT " " ULONG_LONG_FORMAT " " ULONG_LONG_FORMAT "\n", ula, ulb, ulc);
1815 }
1816
1817 long long llfunc1(int a)
1818 {
1819     return a * 2;
1820 }
1821
1822 struct S {
1823     int id;
1824     char item;
1825 };
1826
1827 long long int value(struct S *v)
1828 {
1829     return ((long long int)v->item);
1830 }
1831
1832 void longlong_test(void)
1833 {
1834     long long a, b, c;
1835     int ia;
1836     unsigned int ua;
1837     printf("longlong_test:\n");
1838     printf("sizeof(long long) = %d\n", sizeof(long long));
1839     ia = -1;
1840     ua = -2;
1841     a = ia;
1842     b = ua;
1843     printf(LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a, b);
1844     printf(LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %Lx\n",
1845            (long long)1,
1846            (long long)-2,
1847            1LL,
1848            0x1234567812345679);
1849     a = llfunc1(-3);
1850     printf(LONG_LONG_FORMAT "\n", a);
1851
1852     lloptest(1000, 23);
1853     lloptest(0xff, 0x1234);
1854     b = 0x72345678 << 10;
1855     lloptest(-3, b);
1856     llshift(0x123, 5);
1857     llshift(-23, 5);
1858     b = 0x72345678LL << 10;
1859     llshift(b, 47);
1860
1861     llfloat();
1862 #if 1
1863     b = 0x12345678;
1864     a = -1;
1865     c = a + b;
1866     printf("%Lx\n", c);
1867 #endif
1868
1869     /* long long reg spill test */
1870     {
1871           struct S a;
1872
1873           a.item = 3;
1874           printf("%lld\n", value(&a));
1875     }
1876     lloptest(0x80000000, 0);
1877
1878     /* another long long spill test */
1879     {
1880         long long *p, v;
1881         v = 1;
1882         p = &v;
1883         p[0]++;
1884         printf("%lld\n", *p);
1885     }
1886
1887     a = 68719476720LL;
1888     b = 4294967295LL;
1889     printf("%d %d %d %d\n", a > b, a < b, a >= b, a <= b);
1890
1891     printf(LONG_LONG_FORMAT "\n", 0x123456789LLU);
1892 }
1893
1894 void manyarg_test(void)
1895 {
1896     LONG_DOUBLE ld = 1234567891234LL;
1897     printf("manyarg_test:\n");
1898     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1899            1, 2, 3, 4, 5, 6, 7, 8,
1900            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1901     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1902            LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %f %f\n",
1903            1, 2, 3, 4, 5, 6, 7, 8,
1904            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1905            1234567891234LL, 987654321986LL,
1906            42.0, 43.0);
1907     printf("%Lf %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1908            LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %f %f\n",
1909            ld, 1, 2, 3, 4, 5, 6, 7, 8,
1910            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1911            1234567891234LL, 987654321986LL,
1912            42.0, 43.0);
1913     printf("%d %d %d %d %d %d %d %d %Lf\n",
1914            1, 2, 3, 4, 5, 6, 7, 8, ld);
1915     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1916            LONG_LONG_FORMAT " " LONG_LONG_FORMAT "%f %f %Lf\n",
1917            1, 2, 3, 4, 5, 6, 7, 8,
1918            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1919            1234567891234LL, 987654321986LL,
1920            42.0, 43.0, ld);
1921     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1922            "%Lf " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %f %f %Lf\n",
1923            1, 2, 3, 4, 5, 6, 7, 8,
1924            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1925            ld, 1234567891234LL, 987654321986LL,
1926            42.0, 43.0, ld);
1927 }
1928
1929 void vprintf1(const char *fmt, ...)
1930 {
1931     va_list ap, aq;
1932     const char *p;
1933     int c, i;
1934     double d;
1935     long long ll;
1936     LONG_DOUBLE ld;
1937
1938     va_start(aq, fmt);
1939     va_copy(ap, aq);
1940
1941     p = fmt;
1942     for(;;) {
1943         c = *p;
1944         if (c == '\0')
1945             break;
1946         p++;
1947         if (c == '%') {
1948             c = *p;
1949             switch(c) {
1950             case '\0':
1951                 goto the_end;
1952             case 'd':
1953                 i = va_arg(ap, int);
1954                 printf("%d", i);
1955                 break;
1956             case 'f':
1957                 d = va_arg(ap, double);
1958                 printf("%f", d);
1959                 break;
1960             case 'l':
1961                 ll = va_arg(ap, long long);
1962                 printf(LONG_LONG_FORMAT, ll);
1963                 break;
1964             case 'F':
1965                 ld = va_arg(ap, LONG_DOUBLE);
1966                 printf("%Lf", ld);
1967                 break;
1968             }
1969             p++;
1970         } else {
1971             putchar(c);
1972         }
1973     }
1974  the_end:
1975     va_end(aq);
1976     va_end(ap);
1977 }
1978
1979 struct myspace {
1980     short int profile;
1981 };
1982
1983 void stdarg_for_struct(struct myspace bob, ...)
1984 {
1985     struct myspace george, bill;
1986     va_list ap;
1987     short int validate;
1988
1989     va_start(ap, bob);
1990     bill     = va_arg(ap, struct myspace);
1991     george   = va_arg(ap, struct myspace);
1992     validate = va_arg(ap, int);
1993     printf("stdarg_for_struct: %d %d %d %d\n",
1994            bob.profile, bill.profile, george.profile, validate);
1995     va_end(ap);
1996 }
1997
1998 void stdarg_test(void)
1999 {
2000     LONG_DOUBLE ld = 1234567891234LL;
2001     struct myspace bob;
2002
2003     vprintf1("%d %d %d\n", 1, 2, 3);
2004     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
2005     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
2006     vprintf1("%F %F %F\n", LONG_DOUBLE_LITERAL(1.2), LONG_DOUBLE_LITERAL(2.3), LONG_DOUBLE_LITERAL(3.4));
2007     vprintf1("%d %f %l %F %d %f %l %F\n",
2008              1, 1.2, 3LL, LONG_DOUBLE_LITERAL(4.5), 6, 7.8, 9LL, LONG_DOUBLE_LITERAL(0.1));
2009     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %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);
2012     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
2013              1, 2, 3, 4, 5, 6, 7, 8,
2014              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
2015     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2016              "%l %l %f %f\n",
2017              1, 2, 3, 4, 5, 6, 7, 8,
2018              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2019              1234567891234LL, 987654321986LL,
2020              42.0, 43.0);
2021     vprintf1("%F %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2022              "%l %l %f %f\n",
2023              ld, 1, 2, 3, 4, 5, 6, 7, 8,
2024              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2025              1234567891234LL, 987654321986LL,
2026              42.0, 43.0);
2027     vprintf1("%d %d %d %d %d %d %d %d %F\n",
2028              1, 2, 3, 4, 5, 6, 7, 8, ld);
2029     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2030              "%l %l %f %f %F\n",
2031              1, 2, 3, 4, 5, 6, 7, 8,
2032              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2033              1234567891234LL, 987654321986LL,
2034              42.0, 43.0, ld);
2035     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2036              "%F %l %l %f %f %F\n",
2037              1, 2, 3, 4, 5, 6, 7, 8,
2038              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2039              ld, 1234567891234LL, 987654321986LL,
2040              42.0, 43.0, ld);
2041
2042     bob.profile = 42;
2043     stdarg_for_struct(bob, bob, bob, bob.profile);
2044 }
2045
2046 void whitespace_test(void)
2047 {
2048     char *str;
2049
2050 \f\v
#if 1
2051     pri\
2052 ntf("whitspace:\n");\f\v
2053 #endif
2054     pf("N=%d\n", 2);
2055
2056 #ifdef CORRECT_CR_HANDLING
2057     pri\
2058 ntf("aaa=%d\n", 3);
2059 #endif
2060
2061     pri\
2062 \
2063 ntf("min=%d\n", 4);
2064
2065 #ifdef ACCEPT_CR_IN_STRINGS
2066     printf("len1=%d\n", strlen("
2067 "));
2068 #ifdef CORRECT_CR_HANDLING
2069     str = "
2070 ";
2071     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
2072 #endif
2073     printf("len1=%d\n", strlen("
a
2074 "));
2075 #endif /* ACCEPT_CR_IN_STRINGS */
2076 }
2077
2078 int reltab[3] = { 1, 2, 3 };
2079
2080 int *rel1 = &reltab[1];
2081 int *rel2 = &reltab[2];
2082
2083 void relocation_test(void)
2084 {
2085     printf("*rel1=%d\n", *rel1);
2086     printf("*rel2=%d\n", *rel2);
2087 }
2088
2089 void old_style_f(a,b,c)
2090      int a, b;
2091      double c;
2092 {
2093     printf("a=%d b=%d b=%f\n", a, b, c);
2094 }
2095
2096 void decl_func1(int cmpfn())
2097 {
2098     printf("cmpfn=%lx\n", (long)cmpfn);
2099 }
2100
2101 void decl_func2(cmpfn)
2102 int cmpfn();
2103 {
2104     printf("cmpfn=%lx\n", (long)cmpfn);
2105 }
2106
2107 void old_style_function(void)
2108 {
2109     old_style_f((void *)1, 2, 3.0);
2110     decl_func1(NULL);
2111     decl_func2(NULL);
2112 }
2113
2114 void alloca_test()
2115 {
2116 #if defined __i386__ || defined __x86_64__
2117     char *p = alloca(16);
2118     strcpy(p,"123456789012345");
2119     printf("alloca: p is %s\n", p);
2120     char *demo = "This is only a test.\n";
2121     /* Test alloca embedded in a larger expression */
2122     printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
2123 #endif
2124 }
2125
2126 void *bounds_checking_is_enabled()
2127 {
2128     char ca[10], *cp = ca-1;
2129     return (ca != cp + 1) ? cp : NULL;
2130 }
2131
2132 typedef int constant_negative_array_size_as_compile_time_assertion_idiom[(1 ? 2 : 0) - 1];
2133
2134 void c99_vla_test(int size1, int size2)
2135 {
2136 #if defined __i386__ || defined __x86_64__
2137     int size = size1 * size2;
2138     int tab1[size][2], tab2[10][2];
2139     void *tab1_ptr, *tab2_ptr, *bad_ptr;
2140
2141     /* "size" should have been 'captured' at tab1 declaration,
2142         so modifying it should have no effect on VLA behaviour. */
2143     size = size-1;
2144
2145     printf("Test C99 VLA 1 (sizeof): ");
2146     printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
2147     tab1_ptr = tab1;
2148     tab2_ptr = tab2;
2149     printf("Test C99 VLA 2 (ptrs substract): ");
2150     printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
2151     printf("Test C99 VLA 3 (ptr add): ");
2152     printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
2153     printf("Test C99 VLA 4 (ptr access): ");
2154     tab1[size1][1] = 42;
2155     printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
2156
2157     printf("Test C99 VLA 5 (bounds checking (might be disabled)): ");
2158     if (bad_ptr = bounds_checking_is_enabled()) {
2159         int *t1 = &tab1[size1 * size2 - 1][3];
2160         int *t2 = &tab2[9][3];
2161         printf("%s ", bad_ptr == t1 ? "PASSED" : "FAILED");
2162         printf("%s ", bad_ptr == t2 ? "PASSED" : "FAILED");
2163
2164         char*c1 = 1 + sizeof(tab1) + (char*)tab1;
2165         char*c2 = 1 + sizeof(tab2) + (char*)tab2;
2166         printf("%s ", bad_ptr == c1 ? "PASSED" : "FAILED");
2167         printf("%s ", bad_ptr == c2 ? "PASSED" : "FAILED");
2168
2169         int *i1 = tab1[-1];
2170         int *i2 = tab2[-1];
2171         printf("%s ", bad_ptr == i1 ? "PASSED" : "FAILED");
2172         printf("%s ", bad_ptr == i2 ? "PASSED" : "FAILED");
2173
2174         int *x1 = tab1[size1 * size2 + 1];
2175         int *x2 = tab2[10 + 1];
2176         printf("%s ", bad_ptr == x1 ? "PASSED" : "FAILED");
2177         printf("%s ", bad_ptr == x2 ? "PASSED" : "FAILED");
2178     } else {
2179         printf("PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED ");
2180     }
2181     printf("\n");
2182 #endif
2183 }
2184
2185 typedef __SIZE_TYPE__ uintptr_t;
2186
2187 void sizeof_test(void)
2188 {
2189     int a;
2190     int **ptr;
2191
2192     printf("sizeof(int) = %d\n", sizeof(int));
2193     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
2194     printf("sizeof(long) = %d\n", sizeof(long));
2195     printf("sizeof(unsigned long) = %d\n", sizeof(unsigned long));
2196     printf("sizeof(short) = %d\n", sizeof(short));
2197     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
2198     printf("sizeof(char) = %d\n", sizeof(char));
2199     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
2200     printf("sizeof(func) = %d\n", sizeof sizeof_test());
2201     a = 1;
2202     printf("sizeof(a++) = %d\n", sizeof a++);
2203     printf("a=%d\n", a);
2204     ptr = NULL;
2205     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
2206
2207     /* The type of sizeof should be as large as a pointer, actually
2208        it should be size_t.  */
2209     printf("sizeof(sizeof(int) = %d\n", sizeof(sizeof(int)));
2210     uintptr_t t = 1;
2211     uintptr_t t2;
2212     /* Effectively <<32, but defined also on 32bit machines.  */
2213     t <<= 16;
2214     t <<= 16;
2215     t++;
2216     /* This checks that sizeof really can be used to manipulate
2217        uintptr_t objects, without truncation.  */
2218     t2 = t & -sizeof(uintptr_t);
2219     printf ("%lu %lu\n", t, t2);
2220
2221     /* some alignof tests */
2222     printf("__alignof__(int) = %d\n", __alignof__(int));
2223     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
2224     printf("__alignof__(short) = %d\n", __alignof__(short));
2225     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
2226     printf("__alignof__(char) = %d\n", __alignof__(char));
2227     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
2228     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
2229 }
2230
2231 void typeof_test(void)
2232 {
2233     double a;
2234     typeof(a) b;
2235     typeof(float) c;
2236
2237     a = 1.5;
2238     b = 2.5;
2239     c = 3.5;
2240     printf("a=%f b=%f c=%f\n", a, b, c);
2241 }
2242
2243 void statement_expr_test(void)
2244 {
2245     int a, i;
2246
2247     a = 0;
2248     for(i=0;i<10;i++) {
2249         a += 1 +
2250             ( { int b, j;
2251                 b = 0;
2252                 for(j=0;j<5;j++)
2253                     b += j; b;
2254             } );
2255     }
2256     printf("a=%d\n", a);
2257
2258 }
2259
2260 void local_label_test(void)
2261 {
2262     int a;
2263     goto l1;
2264  l2:
2265     a = 1 + ({
2266         __label__ l1, l2, l3, l4;
2267         goto l1;
2268     l4:
2269         printf("aa1\n");
2270         goto l3;
2271     l2:
2272         printf("aa3\n");
2273         goto l4;
2274     l1:
2275         printf("aa2\n");
2276         goto l2;
2277     l3:;
2278         1;
2279     });
2280     printf("a=%d\n", a);
2281     return;
2282  l4:
2283     printf("bb1\n");
2284     goto l2;
2285  l1:
2286     printf("bb2\n");
2287     goto l4;
2288 }
2289
2290 /* inline assembler test */
2291 #ifdef __i386__
2292
2293 /* from linux kernel */
2294 static char * strncat1(char * dest,const char * src,size_t count)
2295 {
2296 int d0, d1, d2, d3;
2297 __asm__ __volatile__(
2298         "repne\n\t"
2299         "scasb\n\t"
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 char * strncat2(char * dest,const char * src,size_t count)
2317 {
2318 int d0, d1, d2, d3;
2319 __asm__ __volatile__(
2320         "repne scasb\n\t" /* one-line repne prefix + string op */
2321         "decl %1\n\t"
2322         "movl %8,%3\n"
2323         "1:\tdecl %3\n\t"
2324         "js 2f\n\t"
2325         "lodsb\n\t"
2326         "stosb\n\t"
2327         "testb %%al,%%al\n\t"
2328         "jne 1b\n"
2329         "2:\txorl %2,%2\n\t"
2330         "stosb"
2331         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2332         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2333         : "memory");
2334 return dest;
2335 }
2336
2337 static inline void * memcpy1(void * to, const void * from, size_t n)
2338 {
2339 int d0, d1, d2;
2340 __asm__ __volatile__(
2341         "rep ; movsl\n\t"
2342         "testb $2,%b4\n\t"
2343         "je 1f\n\t"
2344         "movsw\n"
2345         "1:\ttestb $1,%b4\n\t"
2346         "je 2f\n\t"
2347         "movsb\n"
2348         "2:"
2349         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2350         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2351         : "memory");
2352 return (to);
2353 }
2354
2355 static inline void * memcpy2(void * to, const void * from, size_t n)
2356 {
2357 int d0, d1, d2;
2358 __asm__ __volatile__(
2359         "rep movsl\n\t"  /* one-line rep prefix + string op */
2360         "testb $2,%b4\n\t"
2361         "je 1f\n\t"
2362         "movsw\n"
2363         "1:\ttestb $1,%b4\n\t"
2364         "je 2f\n\t"
2365         "movsb\n"
2366         "2:"
2367         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2368         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2369         : "memory");
2370 return (to);
2371 }
2372
2373 static __inline__ void sigaddset1(unsigned int *set, int _sig)
2374 {
2375         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2376 }
2377
2378 static __inline__ void sigdelset1(unsigned int *set, int _sig)
2379 {
2380         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2381 }
2382
2383 static __inline__ __const__ unsigned int swab32(unsigned int x)
2384 {
2385         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
2386                 "rorl $16,%0\n\t"       /* swap words           */
2387                 "xchgb %b0,%h0"         /* swap higher bytes    */
2388                 :"=q" (x)
2389                 : "0" (x));
2390         return x;
2391 }
2392
2393 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
2394 {
2395     unsigned long long res;
2396     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
2397     return res;
2398 }
2399
2400 static __inline__ unsigned long long inc64(unsigned long long a)
2401 {
2402     unsigned long long res;
2403     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
2404     return res;
2405 }
2406
2407 unsigned int set;
2408
2409 void asm_test(void)
2410 {
2411     char buf[128];
2412     unsigned int val;
2413
2414     printf("inline asm:\n");
2415     /* test the no operand case */
2416     asm volatile ("xorl %eax, %eax");
2417
2418     memcpy1(buf, "hello", 6);
2419     strncat1(buf, " worldXXXXX", 3);
2420     printf("%s\n", buf);
2421
2422     memcpy2(buf, "hello", 6);
2423     strncat2(buf, " worldXXXXX", 3);
2424     printf("%s\n", buf);
2425
2426     /* 'A' constraint test */
2427     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
2428     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
2429
2430     set = 0xff;
2431     sigdelset1(&set, 2);
2432     sigaddset1(&set, 16);
2433     /* NOTE: we test here if C labels are correctly restored after the
2434        asm statement */
2435     goto label1;
2436  label2:
2437     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
2438 #ifdef __GNUC__ // works strange with GCC 4.3
2439     set=0x1080fd;
2440 #endif
2441     printf("set=0x%x\n", set);
2442     val = 0x01020304;
2443     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
2444     return;
2445  label1:
2446     goto label2;
2447 }
2448
2449 #else
2450
2451 void asm_test(void)
2452 {
2453 }
2454
2455 #endif
2456
2457 #define COMPAT_TYPE(type1, type2) \
2458 {\
2459     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
2460            __builtin_types_compatible_p (type1, type2));\
2461 }
2462
2463 int constant_p_var;
2464
2465 void builtin_test(void)
2466 {
2467 #if GCC_MAJOR >= 3
2468     COMPAT_TYPE(int, int);
2469     COMPAT_TYPE(int, unsigned int);
2470     COMPAT_TYPE(int, char);
2471     COMPAT_TYPE(int, const int);
2472     COMPAT_TYPE(int, volatile int);
2473     COMPAT_TYPE(int *, int *);
2474     COMPAT_TYPE(int *, void *);
2475     COMPAT_TYPE(int *, const int *);
2476     COMPAT_TYPE(char *, unsigned char *);
2477 /* space is needed because tcc preprocessor introduces a space between each token */
2478     COMPAT_TYPE(char * *, void *);
2479 #endif
2480     printf("res = %d\n", __builtin_constant_p(1));
2481     printf("res = %d\n", __builtin_constant_p(1 + 2));
2482     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
2483     printf("res = %d\n", __builtin_constant_p(constant_p_var));
2484 }
2485
2486 #ifndef _WIN32
2487 extern int __attribute__((weak)) weak_f1(void);
2488 extern int __attribute__((weak)) weak_f2(void);
2489 extern int                       weak_f3(void);
2490 extern int __attribute__((weak)) weak_v1;
2491 extern int __attribute__((weak)) weak_v2;
2492 extern int                       weak_v3;
2493
2494 extern int                           (*weak_fpa)() __attribute__((weak));
2495 extern int __attribute__((weak))     (*weak_fpb)();
2496 extern     __attribute__((weak)) int (*weak_fpc)();
2497
2498 extern int                     weak_asm_f1(void) asm("weak_asm_f1x") __attribute((weak));
2499 extern int __attribute((weak)) weak_asm_f2(void) asm("weak_asm_f2x")                    ;
2500 extern int __attribute((weak)) weak_asm_f3(void) asm("weak_asm_f3x") __attribute((weak));
2501 extern int                     weak_asm_v1       asm("weak_asm_v1x") __attribute((weak));
2502 extern int __attribute((weak)) weak_asm_v2       asm("weak_asm_v2x")                    ;
2503 extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak));
2504
2505 static const size_t dummy = 0;
2506 extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy")));
2507 extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2;
2508 extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3;
2509
2510 int some_lib_func(void);
2511 int dummy_impl_of_slf(void) { return 444; }
2512 int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf")));
2513
2514 int weak_toolate() __attribute__((weak));
2515 int weak_toolate() { return 0; }
2516
2517 void __attribute__((weak)) weak_test(void)
2518 {
2519         printf("weak_f1=%d\n", weak_f1 ? weak_f1() : 123);
2520         printf("weak_f2=%d\n", weak_f2 ? weak_f2() : 123);
2521         printf("weak_f3=%d\n", weak_f3 ? weak_f3() : 123);
2522         printf("weak_v1=%d\n",&weak_v1 ? weak_v1   : 123);
2523         printf("weak_v2=%d\n",&weak_v2 ? weak_v2   : 123);
2524         printf("weak_v3=%d\n",&weak_v3 ? weak_v3   : 123);
2525
2526         printf("weak_fpa=%d\n",&weak_fpa ? weak_fpa() : 123);
2527         printf("weak_fpb=%d\n",&weak_fpb ? weak_fpb() : 123);
2528         printf("weak_fpc=%d\n",&weak_fpc ? weak_fpc() : 123);
2529
2530         printf("weak_asm_f1=%d\n", weak_asm_f1 != NULL);
2531         printf("weak_asm_f2=%d\n", weak_asm_f2 != NULL);
2532         printf("weak_asm_f3=%d\n", weak_asm_f3 != NULL);
2533         printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL);
2534         printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL);
2535         printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL);
2536 }
2537
2538 int __attribute__((weak)) weak_f2() { return 222; }
2539 int __attribute__((weak)) weak_f3() { return 333; }
2540 int __attribute__((weak)) weak_v2 = 222;
2541 int __attribute__((weak)) weak_v3 = 333;
2542 #endif
2543
2544 void const_func(const int a)
2545 {
2546 }
2547
2548 void const_warn_test(void)
2549 {
2550     const_func(1);
2551 }
2552
2553 struct condstruct {
2554   int i;
2555 };
2556
2557 int getme (struct condstruct *s, int i)
2558 {
2559   int i1 = (i == 0 ? 0 : s)->i;
2560   int i2 = (i == 0 ? s : 0)->i;
2561   int i3 = (i == 0 ? (void*)0 : s)->i;
2562   int i4 = (i == 0 ? s : (void*)0)->i;
2563   return i1 + i2 + i3 + i4;
2564 }
2565
2566 struct global_data
2567 {
2568   int a[40];
2569   int *b[40];
2570 };
2571
2572 struct global_data global_data;
2573
2574 int global_data_getstuff (int *, int);
2575
2576 void global_data_callit (int i)
2577 {
2578   *global_data.b[i] = global_data_getstuff (global_data.b[i], 1);
2579 }
2580
2581 int global_data_getstuff (int *p, int i)
2582 {
2583   return *p + i;
2584 }
2585
2586 void global_data_test (void)
2587 {
2588   global_data.a[0] = 42;
2589   global_data.b[0] = &global_data.a[0];
2590   global_data_callit (0);
2591   printf ("%d\n", global_data.a[0]);
2592 }
2593
2594 struct cmpcmpS
2595 {
2596   unsigned char fill : 3;
2597   unsigned char b1 : 1;
2598   unsigned char b2 : 1;
2599   unsigned char fill2 : 3;
2600 };
2601
2602 int glob1, glob2, glob3;
2603
2604 void compare_comparisons (struct cmpcmpS *s)
2605 {
2606   if (s->b1 != (glob1 == glob2)
2607       || (s->b2 != (glob1 == glob3)))
2608     printf ("comparing comparisons broken\n");
2609 }
2610
2611 void cmp_comparison_test(void)
2612 {
2613   struct cmpcmpS s;
2614   s.b1 = 1;
2615   glob1 = 42; glob2 = 42;
2616   s.b2 = 0;
2617   glob3 = 43;
2618   compare_comparisons (&s);
2619 }
2620
2621 int fcompare (double a, double b, int code)
2622 {
2623   switch (code) {
2624     case 0: return a == b;
2625     case 1: return a != b;
2626     case 2: return a < b;
2627     case 3: return a >= b;
2628     case 4: return a > b;
2629     case 5: return a <= b;
2630   }
2631 }
2632
2633 void math_cmp_test(void)
2634 {
2635   double nan = 0.0/0.0;
2636   double one = 1.0;
2637   double two = 2.0;
2638   int comp = 0;
2639 #define bug(a,b,op,iop,part) printf("Test broken: %s %s %s %s %d\n", #a, #b, #op, #iop, part)
2640
2641   /* This asserts that "a op b" is _not_ true, but "a iop b" is true.
2642      And it does this in various ways so that all code generation paths
2643      are checked (generating inverted tests, or non-inverted tests, or
2644      producing a 0/1 value without jumps (that's done in the fcompare
2645      function).  */
2646 #define FCMP(a,b,op,iop,code) \
2647   if (fcompare (a,b,code))    \
2648     bug (a,b,op,iop,1); \
2649   if (a op b) \
2650     bug (a,b,op,iop,2); \
2651   if (a iop b) \
2652     ; \
2653   else \
2654     bug (a,b,op,iop,3); \
2655   if ((a op b) || comp) \
2656     bug (a,b,op,iop,4); \
2657   if ((a iop b) || comp) \
2658     ; \
2659   else \
2660     bug (a,b,op,iop,5);
2661
2662   /* Equality tests.  */
2663   FCMP(nan, nan, ==, !=, 0);
2664   FCMP(one, two, ==, !=, 0);
2665   FCMP(one, one, !=, ==, 1);
2666   /* Non-equality is a bit special.  */
2667   if (!fcompare (nan, nan, 1))
2668     bug (nan, nan, !=, ==, 6);
2669
2670   /* Relational tests on numbers.  */
2671   FCMP(two, one, <, >=, 2);
2672   FCMP(one, two, >=, <, 3);
2673   FCMP(one, two, >, <=, 4);
2674   FCMP(two, one, <=, >, 5);
2675
2676   /* Relational tests on NaNs.  Note that the inverse op here is
2677      always !=, there's no operator in C that is equivalent to !(a < b),
2678      when NaNs are involved, same for the other relational ops.  */
2679   FCMP(nan, nan, <, !=, 2);
2680   FCMP(nan, nan, >=, !=, 3);
2681   FCMP(nan, nan, >, !=, 4);
2682   FCMP(nan, nan, <=, !=, 5);
2683 }
2684
2685 double get100 () { return 100.0; }
2686
2687 void callsave_test(void)
2688 {
2689 #if defined __i386__ || defined __x86_64__
2690   int i, s; double *d; double t;
2691   s = sizeof (double);
2692   printf ("callsavetest: %d\n", s);
2693   d = alloca (sizeof(double));
2694   d[0] = 10.0;
2695   /* x86-64 had a bug were the next call to get100 would evict
2696      the lvalue &d[0] as VT_LLOCAL, and the reload would be done
2697      in int type, not pointer type.  When alloca returns a pointer
2698      with the high 32 bit set (which is likely on x86-64) the access
2699      generates a segfault.  */
2700   i = d[0] > get100 ();
2701   printf ("%d\n", i);
2702 #endif
2703 }
2704
2705
2706 void bfa3(ptrdiff_t str_offset)
2707 {
2708     printf("bfa3: %s\n", (char *)__builtin_frame_address(3) + str_offset);
2709 }
2710 void bfa2(ptrdiff_t str_offset)
2711 {
2712     printf("bfa2: %s\n", (char *)__builtin_frame_address(2) + str_offset);
2713     bfa3(str_offset);
2714 }
2715 void bfa1(ptrdiff_t str_offset)
2716 {
2717     printf("bfa1: %s\n", (char *)__builtin_frame_address(1) + str_offset);
2718 #if defined(__arm__) && !defined(__GNUC__)
2719     bfa2(str_offset);
2720 #endif
2721 }
2722
2723 void builtin_frame_address_test(void)
2724 {
2725     char str[] = "__builtin_frame_address";
2726     char *fp0 = __builtin_frame_address(0);
2727
2728     printf("str: %s\n", str);
2729     bfa1(str-fp0);
2730 }