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 intdiv_test();
  63 void string_test();
  64 void expr_test();
  65 void macro_test();
  66 void recursive_macro_test();
  67 void scope_test();
  68 void forward_test();
  69 void funcptr_test();
  70 void loop_test();
  71 void switch_test();
  72 void goto_test();
  73 void enum_test();
  74 void typedef_test();
  75 void struct_test();
  76 void array_test();
  77 void expr_ptr_test();
  78 void bool_test();
  79 void expr2_test();
  80 void constant_expr_test();
  81 void expr_cmp_test();
  82 void char_short_test();
  83 void init_test(void);
  84 void compound_literal_test(void);
  85 int kr_test();
  86 void struct_assign_test(void);
  87 void cast_test(void);
  88 void bitfield_test(void);
  89 void c99_bool_test(void);
  90 void float_test(void);
  91 void longlong_test(void);
  92 void manyarg_test(void);
  93 void stdarg_test(void);
  94 void whitespace_test(void);
  95 void relocation_test(void);
  96 void old_style_function(void);
  97 void alloca_test(void);
  98 void c99_vla_test(int size1, int size2);
  99 void sizeof_test(void);
 100 void typeof_test(void);
 101 void local_label_test(void);
 102 void statement_expr_test(void);
 103 void asm_test(void);
 104 void builtin_test(void);
 105 void weak_test(void);
 106 void global_data_test(void);
 107 void cmp_comparison_test(void);
 108 void math_cmp_test(void);
 109 void callsave_test(void);
 110 void builtin_frame_address_test(void);
 111
 112 int fib(int n);
 113 void num(int n);
 114 void forward_ref(void);
 115 int isid(int c);
 116
 117 /* Line joining happens before tokenization, so the following
 118    must be parsed as ellipsis.  */
 119 void funny_line_continuation (int, ..\
 120 . );
 121
 122 char via_volatile (char);
 123
 124 #define A 2
 125 #define N 1234 + A
 126 #define pf printf
 127 #define M1(a, b)  (a) + (b)
 128
 129 #define str\
 130 (s) # s
 131 #define glue(a, b) a ## b
 132 #define xglue(a, b) glue(a, b)
 133 #define HIGHLOW "hello"
 134 #define LOW LOW ", world"
 135
 136 static int onetwothree = 123;
 137 #define onetwothree4 onetwothree
 138 #define onetwothree xglue(onetwothree,4)
 139
 140 #define min(a, b) ((a) < (b) ? (a) : (b))
 141
 142 #ifdef C99_MACROS
 143 #define dprintf(level,...) printf(__VA_ARGS__)
 144 #endif
 145
 146 /* gcc vararg macros */
 147 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 148
 149 #define MACRO_NOARGS()
 150
 151 #define AAA 3
 152 #undef AAA
 153 #define AAA 4
 154
 155 #if 1
 156 #define B3 1
 157 #elif 1
 158 #define B3 2
 159 #elif 0
 160 #define B3 3
 161 #else
 162 #define B3 4
 163 #endif
 164
 165 #define __INT64_C(c)    c ## LL
 166 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 167
 168 int qq(int x)
 169 {
 170     return x + 40;
 171 }
 172 #define qq(x) x
 173
 174 #define spin_lock(lock) do { } while (0)
 175 #define wq_spin_lock spin_lock
 176 #define TEST2() wq_spin_lock(a)
 177
 178 #define UINT_MAX ((unsigned) -1)
 179
 180 void intdiv_test(void)
 181 {
 182     printf("18/21=%u\n", 18/21);
 183     printf("18%%21=%u\n", 18%21);
 184     printf("41/21=%u\n", 41/21);
 185     printf("41%%21=%u\n", 41%21);
 186     printf("42/21=%u\n", 42/21);
 187     printf("42%%21=%u\n", 42%21);
 188     printf("43/21=%u\n", 43/21);
 189     printf("43%%21=%u\n", 43%21);
 190     printf("126/21=%u\n", 126/21);
 191     printf("126%%21=%u\n", 126%21);
 192     printf("131/21=%u\n", 131/21);
 193     printf("131%%21=%u\n", 131%21);
 194     printf("(UINT_MAX/2+3)/2=%u\n", (UINT_MAX/2+3)/2);
 195     printf("(UINT_MAX/2+3)%%2=%u\n", (UINT_MAX/2+3)%2);
 196
 197     printf("18/-21=%u\n", 18/-21);
 198     printf("18%%-21=%u\n", 18%-21);
 199     printf("41/-21=%u\n", 41/-21);
 200     printf("41%%-21=%u\n", 41%-21);
 201     printf("42/-21=%u\n", 42/-21);
 202     printf("42%%-21=%u\n", 42%-21);
 203     printf("43/-21=%u\n", 43/-21);
 204     printf("43%%-21=%u\n", 43%-21);
 205     printf("126/-21=%u\n", 126/-21);
 206     printf("126%%-21=%u\n", 126%-21);
 207     printf("131/-21=%u\n", 131/-21);
 208     printf("131%%-21=%u\n", 131%-21);
 209     printf("(UINT_MAX/2+3)/-2=%u\n", (UINT_MAX/2+3)/-2);
 210     printf("(UINT_MAX/2+3)%%-2=%u\n", (UINT_MAX/2+3)%-2);
 211
 212     printf("-18/21=%u\n", -18/21);
 213     printf("-18%%21=%u\n", -18%21);
 214     printf("-41/21=%u\n", -41/21);
 215     printf("-41%%21=%u\n", -41%21);
 216     printf("-42/21=%u\n", -42/21);
 217     printf("-42%%21=%u\n", -42%21);
 218     printf("-43/21=%u\n", -43/21);
 219     printf("-43%%21=%u\n", -43%21);
 220     printf("-126/21=%u\n", -126/21);
 221     printf("-126%%21=%u\n", -126%21);
 222     printf("-131/21=%u\n", -131/21);
 223     printf("-131%%21=%u\n", -131%21);
 224     printf("-(UINT_MAX/2+3)/2=%u\n", (0-(UINT_MAX/2+3))/2);
 225     printf("-(UINT_MAX/2+3)%%2=%u\n", (0-(UINT_MAX/2+3))%2);
 226
 227     printf("-18/-21=%u\n", -18/-21);
 228     printf("-18%%-21=%u\n", -18%-21);
 229     printf("-41/-21=%u\n", -41/-21);
 230     printf("-41%%-21=%u\n", -41%-21);
 231     printf("-42/-21=%u\n", -42/-21);
 232     printf("-42%%-21=%u\n", -42%-21);
 233     printf("-43/-21=%u\n", -43/-21);
 234     printf("-43%%-21=%u\n", -43%-21);
 235     printf("-126/-21=%u\n", -126/-21);
 236     printf("-126%%-21=%u\n", -126%-21);
 237     printf("-131/-21=%u\n", -131/-21);
 238     printf("-131%%-21=%u\n", -131%-21);
 239     printf("-(UINT_MAX/2+3)/-2=%u\n", (0-(UINT_MAX/2+3))/-2);
 240     printf("-(UINT_MAX/2+3)%%-2=%u\n", (0-(UINT_MAX/2+3))%-2);
 241 }
 242
 243 void macro_test(void)
 244 {
 245     printf("macro:\n");\f\v
 246     pf("N=%d\n", N);
 247     printf("aaa=%d\n", AAA);
 248
 249     printf("min=%d\n", min(1, min(2, -1)));
 250
 251     printf("s1=%s\n", glue(HIGH, LOW));
 252     printf("s2=%s\n", xglue(HIGH, LOW));
 253     printf("s3=%s\n", str("c"));
 254     printf("s4=%s\n", str(a1));
 255     printf("B3=%d\n", B3);
 256
 257     printf("onetwothree=%d\n", onetwothree);
 258
 259 #ifdef A
 260     printf("A defined\n");
 261 #endif
 262 #ifdef B
 263     printf("B defined\n");
 264 #endif
 265 #ifdef A
 266     printf("A defined\n");
 267 #else
 268     printf("A not defined\n");
 269 #endif
 270 #ifdef B
 271     printf("B defined\n");
 272 #else
 273     printf("B not defined\n");
 274 #endif
 275
 276 #ifdef A
 277     printf("A defined\n");
 278 #ifdef B
 279     printf("B1 defined\n");
 280 #else
 281     printf("B1 not defined\n");
 282 #endif
 283 #else
 284     printf("A not defined\n");
 285 #ifdef B
 286     printf("B2 defined\n");
 287 #else
 288     printf("B2 not defined\n");
 289 #endif
 290 #endif
 291
 292 #if 1+1
 293     printf("test true1\n");
 294 #endif
 295 #if 0
 296     printf("test true2\n");
 297 #endif
 298 #if 1-1
 299     printf("test true3\n");
 300 #endif
 301 #if defined(A)
 302     printf("test trueA\n");
 303 #endif
 304 #if defined(B)
 305     printf("test trueB\n");
 306 #endif
 307
 308 #if 0
 309     printf("test 0\n");
 310 #elif 0
 311     printf("test 1\n");
 312 #elif 2
 313     printf("test 2\n");
 314 #else
 315     printf("test 3\n");
 316 #endif
 317
 318     MACRO_NOARGS();
 319
 320 #ifdef __LINE__
 321     printf("__LINE__ defined\n");
 322 #endif
 323
 324     printf("__LINE__=%d __FILE__=%s\n",
 325            __LINE__, __FILE__);
 326 #if 0
 327 #line 200
 328     printf("__LINE__=%d __FILE__=%s\n",
 329            __LINE__, __FILE__);
 330 #line 203 "test"
 331     printf("__LINE__=%d __FILE__=%s\n",
 332            __LINE__, __FILE__);
 333 #line 227 "tcctest.c"
 334 #endif
 335
 336     /* not strictly preprocessor, but we test it there */
 337 #ifdef C99_MACROS
 338     printf("__func__ = %s\n", __func__);
 339     dprintf(1, "vaarg=%d\n", 1);
 340 #endif
 341     dprintf1(1, "vaarg1\n");
 342     dprintf1(1, "vaarg1=%d\n", 2);
 343     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 344
 345     /* gcc extension */
 346     printf("func='%s'\n", __FUNCTION__);
 347
 348     /* complicated macros in glibc */
 349     printf("INT64_MIN=" LONG_LONG_FORMAT "\n", INT64_MIN);
 350     {
 351         int a;
 352         a = 1;
 353         glue(a+, +);
 354         printf("a=%d\n", a);
 355         glue(a <, <= 2);
 356         printf("a=%d\n", a);
 357     }
 358
 359     /* macro function with argument outside the macro string */
 360 #define MF_s MF_hello
 361 #define MF_hello(msg) printf("%s\n",msg)
 362
 363 #define MF_t printf("tralala\n"); MF_hello
 364
 365     MF_s("hi");
 366     MF_t("hi");
 367
 368     /* test macro substituion inside args (should not eat stream) */
 369     printf("qq=%d\n", qq(qq)(2));
 370
 371     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 372        null argument without a space. gcc 3.2 fixes that. */
 373
 374 #define qq1(x) 1
 375     printf("qq1=%d\n", qq1( ));
 376
 377     /* comment with stray handling *\
 378 /
 379        /* this is a valid *\/ comment */
 380        /* this is a valid comment *\*/
 381     //  this is a valid\
 382 comment
 383
 384     /* test function macro substitution when the function name is
 385        substituted */
 386     TEST2();
 387
 388     /* And again when the name and parenthes are separated by a
 389        comment.  */
 390     TEST2 /* the comment */ ();
 391 }
 392
 393
 394 static void print_num(char *fn, int line, int num) {
 395     printf("fn %s, line %d, num %d\n", fn, line, num);
 396 }
 397
 398 void recursive_macro_test(void)
 399 {
 400
 401 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 402 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 403 #define STB_WEAK        2               /* Weak symbol */
 404 #define ELFW(type) ELF##32##_##type
 405     printf("%d\n", ELFW(ST_INFO)(STB_WEAK, ELFW(ST_TYPE)(123)));
 406
 407 #define WRAP(x) x
 408
 409 #define print_num(x) print_num(__FILE__,__LINE__,x)
 410     print_num(123);
 411     WRAP(print_num(123));
 412     WRAP(WRAP(print_num(123)));
 413
 414 static struct recursive_macro { int rm_field; } G;
 415 #define rm_field (G.rm_field)
 416     printf("rm_field = %d\n", rm_field);
 417     printf("rm_field = %d\n", WRAP(rm_field));
 418     WRAP((printf("rm_field = %d %d\n", rm_field, WRAP(rm_field))));
 419 }
 420
 421 int op(a,b)
 422 {
 423     return a / b;
 424 }
 425
 426 int ret(a)
 427 {
 428     if (a == 2)
 429         return 1;
 430     if (a == 3)
 431         return 2;
 432     return 0;
 433 }
 434
 435 void ps(const char *s)
 436 {
 437     int c;
 438     while (1) {
 439         c = *s;
 440         if (c == 0)
 441             break;
 442         printf("%c", c);
 443         s++;
 444     }
 445 }
 446
 447 const char foo1_string[] = "\
 448 bar\n\
 449 test\14\
 450 1";
 451
 452 void string_test()
 453 {
 454     unsigned int b;
 455     printf("string:\n");
 456     printf("\141\1423\143\n");/* dezdez test */
 457     printf("\x41\x42\x43\x3a\n");
 458     printf("c=%c\n", 'r');
 459     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 460     printf("foo1_string='%s'\n", foo1_string);
 461 #if 0
 462     printf("wstring=%S\n", L"abc");
 463     printf("wstring=%S\n", L"abc" L"def" "ghi");
 464     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 465     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 466 #endif
 467     ps("test\n");
 468     b = 32;
 469     while ((b = b + 1) < 96) {
 470         printf("%c", b);
 471     }
 472     printf("\n");
 473     printf("fib=%d\n", fib(33));
 474     b = 262144;
 475     while (b != 0x80000000) {
 476         num(b);
 477         b = b * 2;
 478     }
 479 }
 480
 481 void loop_test()
 482 {
 483     int i;
 484     i = 0;
 485     while (i < 10)
 486         printf("%d", i++);
 487     printf("\n");
 488     for(i = 0; i < 10;i++)
 489         printf("%d", i);
 490     printf("\n");
 491     i = 0;
 492     do {
 493         printf("%d", i++);
 494     } while (i < 10);
 495     printf("\n");
 496
 497     char count = 123;
 498     /* c99 for loop init test */
 499     for (size_t count = 1; count < 3; count++)
 500         printf("count=%d\n", count);
 501     printf("count = %d\n", count);
 502
 503     /* break/continue tests */
 504     i = 0;
 505     while (1) {
 506         if (i == 6)
 507             break;
 508         i++;
 509         if (i == 3)
 510             continue;
 511         printf("%d", i);
 512     }
 513     printf("\n");
 514
 515     /* break/continue tests */
 516     i = 0;
 517     do {
 518         if (i == 6)
 519             break;
 520         i++;
 521         if (i == 3)
 522             continue;
 523         printf("%d", i);
 524     } while(1);
 525     printf("\n");
 526
 527     for(i = 0;i < 10;i++) {
 528         if (i == 3)
 529             continue;
 530         printf("%d", i);
 531     }
 532     printf("\n");
 533 }
 534
 535 typedef int typedef_and_label;
 536
 537 void goto_test()
 538 {
 539     int i;
 540     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 541
 542     printf("goto:\n");
 543     i = 0;
 544     /* This needs to parse as label, not as start of decl.  */
 545  typedef_and_label:
 546  s_loop:
 547     if (i >= 10)
 548         goto s_end;
 549     printf("%d", i);
 550     i++;
 551     goto s_loop;
 552  s_end:
 553     printf("\n");
 554
 555     /* we also test computed gotos (GCC extension) */
 556     for(i=0;i<3;i++) {
 557         goto *label_table[i];
 558     label1:
 559         printf("label1\n");
 560         goto next;
 561     label2:
 562         printf("label2\n");
 563         goto next;
 564     label3:
 565         printf("label3\n");
 566     next: ;
 567     }
 568 }
 569
 570 enum {
 571     E0,
 572     E1 = 2,
 573     E2 = 4,
 574     E3,
 575     E4,
 576 };
 577
 578 enum test {
 579     E5 = 1000,
 580 };
 581
 582 void enum_test()
 583 {
 584     enum test b1;
 585     printf("enum:\n%d %d %d %d %d %d\n",
 586            E0, E1, E2, E3, E4, E5);
 587     b1 = 1;
 588     printf("b1=%d\n", b1);
 589 }
 590
 591 typedef int *my_ptr;
 592
 593 typedef int mytype1;
 594 typedef int mytype2;
 595
 596 void typedef_test()
 597 {
 598     my_ptr a;
 599     mytype1 mytype2;
 600     int b;
 601
 602     a = &b;
 603     *a = 1234;
 604     printf("typedef:\n");
 605     printf("a=%d\n", *a);
 606     mytype2 = 2;
 607     printf("mytype2=%d\n", mytype2);
 608 }
 609
 610 void forward_test()
 611 {
 612     printf("forward:\n");
 613     forward_ref();
 614     forward_ref();
 615 }
 616
 617
 618 void forward_ref(void)
 619 {
 620     printf("forward ok\n");
 621 }
 622
 623 typedef struct struct1 {
 624     int f1;
 625     int f2, f3;
 626     union union1 {
 627         int v1;
 628         int v2;
 629     } u;
 630     char str[3];
 631 } struct1;
 632
 633 struct struct2 {
 634     int a;
 635     char b;
 636 };
 637
 638 union union2 {
 639     int w1;
 640     int w2;
 641 };
 642
 643 struct struct1 st1, st2;
 644
 645 struct empty_mem {
 646     /* nothing */ ;
 647     int x;
 648 };
 649
 650 int main(int argc, char **argv)
 651 {
 652     string_test();
 653     expr_test();
 654     macro_test();
 655     recursive_macro_test();
 656     scope_test();
 657     forward_test();
 658     funcptr_test();
 659     loop_test();
 660     switch_test();
 661     goto_test();
 662     enum_test();
 663     typedef_test();
 664     struct_test();
 665     array_test();
 666     expr_ptr_test();
 667     bool_test();
 668     expr2_test();
 669     constant_expr_test();
 670     expr_cmp_test();
 671     char_short_test();
 672     init_test();
 673     compound_literal_test();
 674     kr_test();
 675     struct_assign_test();
 676     cast_test();
 677     bitfield_test();
 678     c99_bool_test();
 679     float_test();
 680     longlong_test();
 681     manyarg_test();
 682     stdarg_test();
 683     whitespace_test();
 684     relocation_test();
 685     old_style_function();
 686     alloca_test();
 687     c99_vla_test(5, 2);
 688     sizeof_test();
 689     typeof_test();
 690     statement_expr_test();
 691     local_label_test();
 692     asm_test();
 693     builtin_test();
 694 #ifndef _WIN32
 695     weak_test();
 696 #endif
 697     global_data_test();
 698     cmp_comparison_test();
 699     math_cmp_test();
 700     callsave_test();
 701     builtin_frame_address_test();
 702     intdiv_test();
 703     if (via_volatile (42) != 42)
 704       printf ("via_volatile broken\n");
 705     return 0;
 706 }
 707
 708 int tab[3];
 709 int tab2[3][2];
 710
 711 int g;
 712
 713 void f1(g)
 714 {
 715     printf("g1=%d\n", g);
 716 }
 717
 718 void scope_test()
 719 {
 720     printf("scope:\n");
 721     g = 2;
 722     f1(1);
 723     printf("g2=%d\n", g);
 724     {
 725         int g;
 726         g = 3;
 727         printf("g3=%d\n", g);
 728         {
 729             int g;
 730             g = 4;
 731             printf("g4=%d\n", g);
 732         }
 733     }
 734     printf("g5=%d\n", g);
 735 }
 736
 737 void array_test()
 738 {
 739     int i, j, a[4];
 740
 741     printf("array:\n");
 742     printf("sizeof(a) = %d\n", sizeof(a));
 743     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 744 #ifdef C99_MACROS
 745     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 746 #endif
 747     printf("sizeof tab %d\n", sizeof(tab));
 748     printf("sizeof tab2 %d\n", sizeof tab2);
 749     tab[0] = 1;
 750     tab[1] = 2;
 751     tab[2] = 3;
 752     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 753     for(i=0;i<3;i++)
 754         for(j=0;j<2;j++)
 755             tab2[i][j] = 10 * i + j;
 756     for(i=0;i<3*2;i++) {
 757         printf(" %3d", ((int *)tab2)[i]);
 758     }
 759     printf("\n");
 760     printf("sizeof(size_t)=%d\n", sizeof(size_t));
 761     printf("sizeof(ptrdiff_t)=%d\n", sizeof(ptrdiff_t));
 762 }
 763
 764 void expr_test()
 765 {
 766     int a, b;
 767     a = 0;
 768     printf("%d\n", a += 1);
 769     printf("%d\n", a -= 2);
 770     printf("%d\n", a *= 31232132);
 771     printf("%d\n", a /= 4);
 772     printf("%d\n", a %= 20);
 773     printf("%d\n", a &= 6);
 774     printf("%d\n", a ^= 7);
 775     printf("%d\n", a |= 8);
 776     printf("%d\n", a >>= 3);
 777     printf("%d\n", a <<= 4);
 778
 779     a = 22321;
 780     b = -22321;
 781     printf("%d\n", a + 1);
 782     printf("%d\n", a - 2);
 783     printf("%d\n", a * 312);
 784     printf("%d\n", a / 4);
 785     printf("%d\n", b / 4);
 786     printf("%d\n", (unsigned)b / 4);
 787     printf("%d\n", a % 20);
 788     printf("%d\n", b % 20);
 789     printf("%d\n", (unsigned)b % 20);
 790     printf("%d\n", a & 6);
 791     printf("%d\n", a ^ 7);
 792     printf("%d\n", a | 8);
 793     printf("%d\n", a >> 3);
 794     printf("%d\n", b >> 3);
 795     printf("%d\n", (unsigned)b >> 3);
 796     printf("%d\n", a << 4);
 797     printf("%d\n", ~a);
 798     printf("%d\n", -a);
 799     printf("%d\n", +a);
 800
 801     printf("%d\n", 12 + 1);
 802     printf("%d\n", 12 - 2);
 803     printf("%d\n", 12 * 312);
 804     printf("%d\n", 12 / 4);
 805     printf("%d\n", 12 % 20);
 806     printf("%d\n", 12 & 6);
 807     printf("%d\n", 12 ^ 7);
 808     printf("%d\n", 12 | 8);
 809     printf("%d\n", 12 >> 2);
 810     printf("%d\n", 12 << 4);
 811     printf("%d\n", ~12);
 812     printf("%d\n", -12);
 813     printf("%d\n", +12);
 814     printf("%d %d %d %d\n",
 815            isid('a'),
 816            isid('g'),
 817            isid('T'),
 818            isid('('));
 819 }
 820
 821 int isid(int c)
 822 {
 823     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 824 }
 825
 826 /**********************/
 827
 828 int vstack[10], *vstack_ptr;
 829
 830 void vpush(int vt, int vc)
 831 {
 832     *vstack_ptr++ = vt;
 833     *vstack_ptr++ = vc;
 834 }
 835
 836 void vpop(int *ft, int *fc)
 837 {
 838     *fc = *--vstack_ptr;
 839     *ft = *--vstack_ptr;
 840 }
 841
 842 void expr2_test()
 843 {
 844     int a, b;
 845
 846     printf("expr2:\n");
 847     vstack_ptr = vstack;
 848     vpush(1432432, 2);
 849     vstack_ptr[-2] &= ~0xffffff80;
 850     vpop(&a, &b);
 851     printf("res= %d %d\n", a, b);
 852 }
 853
 854 void constant_expr_test()
 855 {
 856     int a;
 857     printf("constant_expr:\n");
 858     a = 3;
 859     printf("%d\n", a * 16);
 860     printf("%d\n", a * 1);
 861     printf("%d\n", a + 0);
 862 }
 863
 864 int tab4[10];
 865
 866 void expr_ptr_test()
 867 {
 868     int *p, *q;
 869     int i = -1;
 870
 871     printf("expr_ptr:\n");
 872     p = tab4;
 873     q = tab4 + 10;
 874     printf("diff=%d\n", q - p);
 875     p++;
 876     printf("inc=%d\n", p - tab4);
 877     p--;
 878     printf("dec=%d\n", p - tab4);
 879     ++p;
 880     printf("inc=%d\n", p - tab4);
 881     --p;
 882     printf("dec=%d\n", p - tab4);
 883     printf("add=%d\n", p + 3 - tab4);
 884     printf("add=%d\n", 3 + p - tab4);
 885
 886     /* check if 64bit support is ok */
 887     q = p = 0;
 888     q += i;
 889     printf("%p %p %ld\n", q, p, p-q);
 890     printf("%d %d %d %d %d %d\n",
 891            p == q, p != q, p < q, p <= q, p >= q, p > q);
 892     i = 0xf0000000;
 893     p += i;
 894     printf("%p %p %ld\n", q, p, p-q);
 895     printf("%d %d %d %d %d %d\n",
 896            p == q, p != q, p < q, p <= q, p >= q, p > q);
 897     p = (int *)((char *)p + 0xf0000000);
 898     printf("%p %p %ld\n", q, p, p-q);
 899     printf("%d %d %d %d %d %d\n",
 900            p == q, p != q, p < q, p <= q, p >= q, p > q);
 901     p += 0xf0000000;
 902     printf("%p %p %ld\n", q, p, p-q);
 903     printf("%d %d %d %d %d %d\n",
 904            p == q, p != q, p < q, p <= q, p >= q, p > q);
 905     {
 906         struct size12 {
 907             int i, j, k;
 908         };
 909         struct size12 s[2], *sp = s;
 910         int i, j;
 911         sp->i = 42;
 912         sp++;
 913         j = -1;
 914         printf("%d\n", sp[j].i);
 915     }
 916 }
 917
 918 void expr_cmp_test()
 919 {
 920     int a, b;
 921     printf("constant_expr:\n");
 922     a = -1;
 923     b = 1;
 924     printf("%d\n", a == a);
 925     printf("%d\n", a != a);
 926
 927     printf("%d\n", a < b);
 928     printf("%d\n", a <= b);
 929     printf("%d\n", a <= a);
 930     printf("%d\n", b >= a);
 931     printf("%d\n", a >= a);
 932     printf("%d\n", b > a);
 933
 934     printf("%d\n", (unsigned)a < b);
 935     printf("%d\n", (unsigned)a <= b);
 936     printf("%d\n", (unsigned)a <= a);
 937     printf("%d\n", (unsigned)b >= a);
 938     printf("%d\n", (unsigned)a >= a);
 939     printf("%d\n", (unsigned)b > a);
 940 }
 941
 942 struct empty {
 943 };
 944
 945 struct aligntest1 {
 946     char a[10];
 947 };
 948
 949 struct aligntest2 {
 950     int a;
 951     char b[10];
 952 };
 953
 954 struct aligntest3 {
 955     double a, b;
 956 };
 957
 958 struct aligntest4 {
 959     double a[0];
 960 };
 961
 962 void struct_test()
 963 {
 964     struct1 *s;
 965     union union2 u;
 966
 967     printf("struct:\n");
 968     printf("sizes: %d %d %d %d\n",
 969            sizeof(struct struct1),
 970            sizeof(struct struct2),
 971            sizeof(union union1),
 972            sizeof(union union2));
 973     st1.f1 = 1;
 974     st1.f2 = 2;
 975     st1.f3 = 3;
 976     printf("st1: %d %d %d\n",
 977            st1.f1, st1.f2, st1.f3);
 978     st1.u.v1 = 1;
 979     st1.u.v2 = 2;
 980     printf("union1: %d\n", st1.u.v1);
 981     u.w1 = 1;
 982     u.w2 = 2;
 983     printf("union2: %d\n", u.w1);
 984     s = &st2;
 985     s->f1 = 3;
 986     s->f2 = 2;
 987     s->f3 = 1;
 988     printf("st2: %d %d %d\n",
 989            s->f1, s->f2, s->f3);
 990     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 991
 992     /* align / size tests */
 993     printf("aligntest1 sizeof=%d alignof=%d\n",
 994            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 995     printf("aligntest2 sizeof=%d alignof=%d\n",
 996            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 997     printf("aligntest3 sizeof=%d alignof=%d\n",
 998            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 999     printf("aligntest4 sizeof=%d alignof=%d\n",
1000            sizeof(struct aligntest4), __alignof__(struct aligntest4));
1001
1002     /* empty structures (GCC extension) */
1003     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
1004     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
1005 }
1006
1007 /* XXX: depend on endianness */
1008 void char_short_test()
1009 {
1010     int var1, var2;
1011
1012     printf("char_short:\n");
1013
1014     var1 = 0x01020304;
1015     var2 = 0xfffefdfc;
1016     printf("s8=%d %d\n",
1017            *(char *)&var1, *(char *)&var2);
1018     printf("u8=%d %d\n",
1019            *(unsigned char *)&var1, *(unsigned char *)&var2);
1020     printf("s16=%d %d\n",
1021            *(short *)&var1, *(short *)&var2);
1022     printf("u16=%d %d\n",
1023            *(unsigned short *)&var1, *(unsigned short *)&var2);
1024     printf("s32=%d %d\n",
1025            *(int *)&var1, *(int *)&var2);
1026     printf("u32=%d %d\n",
1027            *(unsigned int *)&var1, *(unsigned int *)&var2);
1028     *(char *)&var1 = 0x08;
1029     printf("var1=%x\n", var1);
1030     *(short *)&var1 = 0x0809;
1031     printf("var1=%x\n", var1);
1032     *(int *)&var1 = 0x08090a0b;
1033     printf("var1=%x\n", var1);
1034 }
1035
1036 /******************/
1037
1038 typedef struct Sym {
1039     int v;
1040     int t;
1041     int c;
1042     struct Sym *next;
1043     struct Sym *prev;
1044 } Sym;
1045
1046 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
1047 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
1048
1049 static int toupper1(int a)
1050 {
1051     return TOUPPER(a);
1052 }
1053
1054 void bool_test()
1055 {
1056     int *s, a, b, t, f, i;
1057
1058     a = 0;
1059     s = (void*)0;
1060     printf("!s=%d\n", !s);
1061
1062     if (!s || !s[0])
1063         a = 1;
1064     printf("a=%d\n", a);
1065
1066     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
1067     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
1068     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
1069 #if 1 && 1
1070     printf("a1\n");
1071 #endif
1072 #if 1 || 0
1073     printf("a2\n");
1074 #endif
1075 #if 1 ? 0 : 1
1076     printf("a3\n");
1077 #endif
1078 #if 0 ? 0 : 1
1079     printf("a4\n");
1080 #endif
1081
1082     a = 4;
1083     printf("b=%d\n", a + (0 ? 1 : a / 2));
1084
1085     /* test register spilling */
1086     a = 10;
1087     b = 10;
1088     a = (a + b) * ((a < b) ?
1089                    ((b - a) * (a - b)): a + b);
1090     printf("a=%d\n", a);
1091
1092     /* test complex || or && expressions */
1093     t = 1;
1094     f = 0;
1095     a = 32;
1096     printf("exp=%d\n", f == (32 <= a && a <= 3));
1097     printf("r=%d\n", (t || f) + (t && f));
1098
1099     /* test ? : cast */
1100     {
1101         int aspect_on;
1102         int aspect_native = 65536;
1103         double bfu_aspect = 1.0;
1104         int aspect;
1105         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
1106             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
1107             printf("aspect=%d\n", aspect);
1108         }
1109     }
1110
1111     /* test ? : GCC extension */
1112     {
1113         static int v1 = 34 ? : -1; /* constant case */
1114         static int v2 = 0 ? : -1; /* constant case */
1115         int a = 30;
1116
1117         printf("%d %d\n", v1, v2);
1118         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
1119     }
1120
1121     /* again complex expression */
1122     for(i=0;i<256;i++) {
1123         if (toupper1 (i) != TOUPPER (i))
1124             printf("error %d\n", i);
1125     }
1126 }
1127
1128 /* GCC accepts that */
1129 static int tab_reinit[];
1130 static int tab_reinit[10];
1131
1132 //int cinit1; /* a global variable can be defined several times without error ! */
1133 int cinit1;
1134 int cinit1;
1135 int cinit1 = 0;
1136 int *cinit2 = (int []){3, 2, 1};
1137
1138 void compound_literal_test(void)
1139 {
1140     int *p, i;
1141     char *q, *q3;
1142
1143     printf("compound_test:\n");
1144
1145     p = (int []){1, 2, 3};
1146     for(i=0;i<3;i++)
1147         printf(" %d", p[i]);
1148     printf("\n");
1149
1150     for(i=0;i<3;i++)
1151         printf("%d", cinit2[i]);
1152     printf("\n");
1153
1154     q = "tralala1";
1155     printf("q1=%s\n", q);
1156
1157     q = (char *){ "tralala2" };
1158     printf("q2=%s\n", q);
1159
1160     q3 = (char *){ q };
1161     printf("q3=%s\n", q3);
1162
1163     q = (char []){ "tralala3" };
1164     printf("q4=%s\n", q);
1165
1166 #ifdef ALL_ISOC99
1167     p = (int []){1, 2, cinit1 + 3};
1168     for(i=0;i<3;i++)
1169         printf(" %d", p[i]);
1170     printf("\n");
1171
1172     for(i=0;i<3;i++) {
1173         p = (int []){1, 2, 4 + i};
1174         printf("%d %d %d\n",
1175                p[0],
1176                p[1],
1177                p[2]);
1178     }
1179 #endif
1180 }
1181
1182 /* K & R protos */
1183
1184 kr_func1(a, b)
1185 {
1186     return a + b;
1187 }
1188
1189 int kr_func2(a, b)
1190 {
1191     return a + b;
1192 }
1193
1194 kr_test()
1195 {
1196     printf("kr_test:\n");
1197     printf("func1=%d\n", kr_func1(3, 4));
1198     printf("func2=%d\n", kr_func2(3, 4));
1199     return 0;
1200 }
1201
1202 void num(int n)
1203 {
1204     char *tab, *p;
1205     tab = (char*)malloc(20);
1206     p = tab;
1207     while (1) {
1208         *p = 48 + (n % 10);
1209         p++;
1210         n = n / 10;
1211         if (n == 0)
1212             break;
1213     }
1214     while (p != tab) {
1215         p--;
1216         printf("%c", *p);
1217     }
1218     printf("\n");
1219     free(tab);
1220 }
1221
1222 /* structure assignment tests */
1223 struct structa1 {
1224     int f1;
1225     char f2;
1226 };
1227
1228 struct structa1 ssta1;
1229
1230 void struct_assign_test1(struct structa1 s1, int t, float f)
1231 {
1232     printf("%d %d %d %f\n", s1.f1, s1.f2, t, f);
1233 }
1234
1235 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1236 {
1237     s1.f1 += t;
1238     s1.f2 -= t;
1239     return s1;
1240 }
1241
1242 void struct_assign_test(void)
1243 {
1244     struct S {
1245       struct structa1 lsta1, lsta2;
1246       int i;
1247     } s, *ps;
1248
1249     ps = &s;
1250     ps->i = 4;
1251 #if 0
1252     printf("struct_assign_test:\n");
1253
1254     s.lsta1.f1 = 1;
1255     s.lsta1.f2 = 2;
1256     printf("%d %d\n", s.lsta1.f1, s.lsta1.f2);
1257     s.lsta2 = s.lsta1;
1258     printf("%d %d\n", s.lsta2.f1, s.lsta2.f2);
1259 #else
1260     s.lsta2.f1 = 1;
1261     s.lsta2.f2 = 2;
1262 #endif
1263     struct_assign_test1(ps->lsta2, 3, 4.5);
1264
1265     printf("before call: %d %d\n", s.lsta2.f1, s.lsta2.f2);
1266     ps->lsta2 = struct_assign_test2(ps->lsta2, ps->i);
1267     printf("after call: %d %d\n", ps->lsta2.f1, ps->lsta2.f2);
1268
1269     static struct {
1270         void (*elem)();
1271     } t[] = {
1272         /* XXX: we should allow this even without braces */
1273         { struct_assign_test }
1274     };
1275     printf("%d\n", struct_assign_test == t[0].elem);
1276 }
1277
1278 /* casts to short/char */
1279
1280 void cast1(char a, short b, unsigned char c, unsigned short d)
1281 {
1282     printf("%d %d %d %d\n", a, b, c, d);
1283 }
1284
1285 char bcast;
1286 short scast;
1287
1288 void cast_test()
1289 {
1290     int a;
1291     char c;
1292     char tab[10];
1293     unsigned b,d;
1294     short s;
1295     char *p = NULL;
1296     p -= 0x700000000042;
1297
1298     printf("cast_test:\n");
1299     a = 0xfffff;
1300     cast1(a, a, a, a);
1301     a = 0xffffe;
1302     printf("%d %d %d %d\n",
1303            (char)(a + 1),
1304            (short)(a + 1),
1305            (unsigned char)(a + 1),
1306            (unsigned short)(a + 1));
1307     printf("%d %d %d %d\n",
1308            (char)0xfffff,
1309            (short)0xfffff,
1310            (unsigned char)0xfffff,
1311            (unsigned short)0xfffff);
1312
1313     a = (bcast = 128) + 1;
1314     printf("%d\n", a);
1315     a = (scast = 65536) + 1;
1316     printf("%d\n", a);
1317
1318     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1319
1320     /* test cast from unsigned to signed short to int */
1321     b = 0xf000;
1322     d = (short)b;
1323     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1324     b = 0xf0f0;
1325     d = (char)b;
1326     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1327
1328     /* test implicit int casting for array accesses */
1329     c = 0;
1330     tab[1] = 2;
1331     tab[c] = 1;
1332     printf("%d %d\n", tab[0], tab[1]);
1333
1334     /* test implicit casting on some operators */
1335     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1336     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1337     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1338
1339     /* from pointer to integer types */
1340     printf("%d %d %ld %ld %lld %lld\n",
1341            (int)p, (unsigned int)p,
1342            (long)p, (unsigned long)p,
1343            (long long)p, (unsigned long long)p);
1344
1345     /* from integers to pointers */
1346     printf("%p %p %p %p\n",
1347            (void *)a, (void *)b, (void *)c, (void *)d);
1348 }
1349
1350 /* initializers tests */
1351 struct structinit1 {
1352     int f1;
1353     char f2;
1354     short f3;
1355     int farray[3];
1356 };
1357
1358 int sinit1 = 2;
1359 int sinit2 = { 3 };
1360 int sinit3[3] = { 1, 2, {{3}}, };
1361 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1362 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1363 int sinit6[] = { 1, 2, 3 };
1364 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1365 char sinit8[] = "hello" "trala";
1366
1367 struct structinit1 sinit9 = { 1, 2, 3 };
1368 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1369 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1370 #ifdef ALL_ISOC99
1371                                .farray[0] = 10,
1372                                .farray[1] = 11,
1373                                .farray[2] = 12,
1374 #endif
1375 };
1376
1377 char *sinit12 = "hello world";
1378 char *sinit13[] = {
1379     "test1",
1380     "test2",
1381     "test3",
1382 };
1383 char sinit14[10] = { "abc" };
1384 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1385
1386 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1387
1388 struct bar {
1389         char *s;
1390         int len;
1391 } sinit17[] = {
1392         "a1", 4,
1393         "a2", 1
1394 };
1395
1396 int sinit18[10] = {
1397     [2 ... 5] = 20,
1398     2,
1399     [8] = 10,
1400 };
1401
1402 struct complexinit0 {
1403     int a;
1404     int b;
1405 };
1406
1407 struct complexinit {
1408     int a;
1409     const struct complexinit0 *b;
1410 };
1411
1412 const static struct complexinit cix[] = {
1413     [0] = {
1414         .a = 2000,
1415         .b = (const struct complexinit0[]) {
1416                 { 2001, 2002 },
1417                 { 2003, 2003 },
1418                 {}
1419         }
1420     }
1421 };
1422
1423 struct complexinit2 {
1424         int a;
1425         int b[];
1426 };
1427
1428 struct complexinit2 cix20;
1429
1430 struct complexinit2 cix21 = {
1431         .a = 3000,
1432         .b = { 3001, 3002, 3003 }
1433 };
1434
1435 struct complexinit2 cix22 = {
1436         .a = 4000,
1437         .b = { 4001, 4002, 4003, 4004, 4005, 4006 }
1438 };
1439
1440 void init_test(void)
1441 {
1442     int linit1 = 2;
1443     int linit2 = { 3 };
1444     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1445     int linit6[] = { 1, 2, 3 };
1446     int i, j;
1447     char linit8[] = "hello" "trala";
1448     int linit12[10] = { 1, 2 };
1449     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1450     char linit14[10] = "abc";
1451     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1452     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1453     int linit17 = sizeof(linit17);
1454
1455     printf("init_test:\n");
1456
1457     printf("sinit1=%d\n", sinit1);
1458     printf("sinit2=%d\n", sinit2);
1459     printf("sinit3=%d %d %d %d\n",
1460            sizeof(sinit3),
1461            sinit3[0],
1462            sinit3[1],
1463            sinit3[2]
1464            );
1465     printf("sinit6=%d\n", sizeof(sinit6));
1466     printf("sinit7=%d %d %d %d\n",
1467            sizeof(sinit7),
1468            sinit7[0],
1469            sinit7[1],
1470            sinit7[2]
1471            );
1472     printf("sinit8=%s\n", sinit8);
1473     printf("sinit9=%d %d %d\n",
1474            sinit9.f1,
1475            sinit9.f2,
1476            sinit9.f3
1477            );
1478     printf("sinit10=%d %d %d\n",
1479            sinit10.f1,
1480            sinit10.f2,
1481            sinit10.f3
1482            );
1483     printf("sinit11=%d %d %d %d %d %d\n",
1484            sinit11.f1,
1485            sinit11.f2,
1486            sinit11.f3,
1487            sinit11.farray[0],
1488            sinit11.farray[1],
1489            sinit11.farray[2]
1490            );
1491
1492     for(i=0;i<3;i++)
1493         for(j=0;j<2;j++)
1494             printf("[%d][%d] = %d %d %d\n",
1495                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1496     printf("linit1=%d\n", linit1);
1497     printf("linit2=%d\n", linit2);
1498     printf("linit6=%d\n", sizeof(linit6));
1499     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1500
1501     printf("sinit12=%s\n", sinit12);
1502     printf("sinit13=%d %s %s %s\n",
1503            sizeof(sinit13),
1504            sinit13[0],
1505            sinit13[1],
1506            sinit13[2]);
1507     printf("sinit14=%s\n", sinit14);
1508
1509     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1510     printf("\n");
1511     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1512     printf("\n");
1513     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1514     printf("\n");
1515     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1516     printf("\n");
1517     printf("%d %d %d %d\n",
1518            linit16.a1,
1519            linit16.a2,
1520            linit16.a3,
1521            linit16.a4);
1522     /* test that initialisation is done after variable declare */
1523     printf("linit17=%d\n", linit17);
1524     printf("sinit15=%d\n", sinit15[0]);
1525     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1526     printf("sinit17=%s %d %s %d\n",
1527            sinit17[0].s, sinit17[0].len,
1528            sinit17[1].s, sinit17[1].len);
1529     for(i=0;i<10;i++)
1530         printf("%x ", sinit18[i]);
1531     printf("\n");
1532     /* complex init check */
1533     printf("cix: %d %d %d %d %d %d %d\n",
1534         cix[0].a,
1535         cix[0].b[0].a, cix[0].b[0].b,
1536         cix[0].b[1].a, cix[0].b[1].b,
1537         cix[0].b[2].a, cix[0].b[2].b);
1538     printf("cix2: %d %d\n", cix21.b[2], cix22.b[5]);
1539     printf("sizeof cix20 %d, cix21 %d, sizeof cix22 %d\n", sizeof cix20, sizeof cix21, sizeof cix22);
1540 }
1541
1542
1543 void switch_test()
1544 {
1545     int i;
1546
1547     for(i=0;i<15;i++) {
1548         switch(i) {
1549         case 0:
1550         case 1:
1551             printf("a");
1552             break;
1553         default:
1554             printf("%d", i);
1555             break;
1556         case 8 ... 12:
1557             printf("c");
1558             break;
1559         case 3:
1560             printf("b");
1561             break;
1562         case 0xc33c6b9fU:
1563         case 0x7c9eeeb9U:
1564             break;
1565         }
1566     }
1567     printf("\n");
1568 }
1569
1570 /* ISOC99 _Bool type */
1571 void c99_bool_test(void)
1572 {
1573 #ifdef BOOL_ISOC99
1574     int a;
1575     _Bool b;
1576
1577     printf("bool_test:\n");
1578     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1579     a = 3;
1580     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1581     b = 3;
1582     printf("b = %d\n", b);
1583     b++;
1584     printf("b = %d\n", b);
1585 #endif
1586 }
1587
1588 void bitfield_test(void)
1589 {
1590     int a;
1591     short sa;
1592     unsigned char ca;
1593     struct sbf1 {
1594         int f1 : 3;
1595         int : 2;
1596         int f2 : 1;
1597         int : 0;
1598         int f3 : 5;
1599         int f4 : 7;
1600         unsigned int f5 : 7;
1601     } st1;
1602     printf("bitfield_test:");
1603     printf("sizeof(st1) = %d\n", sizeof(st1));
1604
1605     st1.f1 = 3;
1606     st1.f2 = 1;
1607     st1.f3 = 15;
1608     a = 120;
1609     st1.f4 = a;
1610     st1.f5 = a;
1611     st1.f5++;
1612     printf("%d %d %d %d %d\n",
1613            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1614     sa = st1.f5;
1615     ca = st1.f5;
1616     printf("%d %d\n", sa, ca);
1617
1618     st1.f1 = 7;
1619     if (st1.f1 == -1)
1620         printf("st1.f1 == -1\n");
1621     else
1622         printf("st1.f1 != -1\n");
1623     if (st1.f2 == -1)
1624         printf("st1.f2 == -1\n");
1625     else
1626         printf("st1.f2 != -1\n");
1627
1628     /* bit sizes below must be bigger than 32 since GCC doesn't allow
1629        long-long bitfields whose size is not bigger than int */
1630     struct sbf2 {
1631         long long f1 : 45;
1632         long long : 2;
1633         long long f2 : 35;
1634         unsigned long long f3 : 38;
1635     } st2;
1636     st2.f1 = 0x123456789ULL;
1637     a = 120;
1638     st2.f2 = (long long)a << 25;
1639     st2.f3 = a;
1640     st2.f2++;
1641     printf("%lld %lld %lld\n", st2.f1, st2.f2, st2.f3);
1642 }
1643
1644 #ifdef __x86_64__
1645 #define FLOAT_FMT "%f\n"
1646 #else
1647 /* x86's float isn't compatible with GCC */
1648 #define FLOAT_FMT "%.5f\n"
1649 #endif
1650
1651 /* declare strto* functions as they are C99 */
1652 double strtod(const char *nptr, char **endptr);
1653
1654 #if defined(_WIN32)
1655 float strtof(const char *nptr, char **endptr) {return (float)strtod(nptr, endptr);}
1656 LONG_DOUBLE strtold(const char *nptr, char **endptr) {return (LONG_DOUBLE)strtod(nptr, endptr);}
1657 #else
1658 float strtof(const char *nptr, char **endptr);
1659 LONG_DOUBLE strtold(const char *nptr, char **endptr);
1660 #endif
1661
1662 #define FTEST(prefix, typename, type, fmt)\
1663 void prefix ## cmp(type a, type b)\
1664 {\
1665     printf("%d %d %d %d %d %d\n",\
1666            a == b,\
1667            a != b,\
1668            a < b,\
1669            a > b,\
1670            a >= b,\
1671            a <= b);\
1672     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1673            a,\
1674            b,\
1675            a + b,\
1676            a - b,\
1677            a * b,\
1678            a / b,\
1679            -a);\
1680     printf(fmt "\n", ++a);\
1681     printf(fmt "\n", a++);\
1682     printf(fmt "\n", a);\
1683     b = 0;\
1684     printf("%d %d\n", !a, !b);\
1685 }\
1686 void prefix ## fcast(type a)\
1687 {\
1688     float fa;\
1689     double da;\
1690     LONG_DOUBLE la;\
1691     int ia;\
1692     long long llia;\
1693     unsigned int ua;\
1694     unsigned long long llua;\
1695     type b;\
1696     fa = a;\
1697     da = a;\
1698     la = a;\
1699     printf("ftof: %f %f %Lf\n", fa, da, la);\
1700     ia = (int)a;\
1701     llia = (long long)a;\
1702     a = (a >= 0) ? a : -a;\
1703     ua = (unsigned int)a;\
1704     llua = (unsigned long long)a;\
1705     printf("ftoi: %d %u %lld %llu\n", ia, ua, llia, llua);\
1706     ia = -1234;\
1707     ua = 0x81234500;\
1708     llia = -0x123456789012345LL;\
1709     llua = 0xf123456789012345LLU;\
1710     b = ia;\
1711     printf("itof: " fmt "\n", b);\
1712     b = ua;\
1713     printf("utof: " fmt "\n", b);\
1714     b = llia;\
1715     printf("lltof: " fmt "\n", b);\
1716     b = llua;\
1717     printf("ulltof: " fmt "\n", b);\
1718 }\
1719 \
1720 float prefix ## retf(type a) { return a; }\
1721 double prefix ## retd(type a) { return a; }\
1722 LONG_DOUBLE prefix ## retld(type a) { return a; }\
1723 \
1724 void prefix ## call(void)\
1725 {\
1726     printf("float: " FLOAT_FMT, prefix ## retf(42.123456789));\
1727     printf("double: %f\n", prefix ## retd(42.123456789));\
1728     printf("long double: %Lf\n", prefix ## retld(42.123456789));\
1729     printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
1730 }\
1731 \
1732 void prefix ## signed_zeros(void) \
1733 {\
1734   type x = 0.0, y = -0.0, n, p;\
1735   if (x == y)\
1736     printf ("Test 1.0 / x != 1.0 / y  returns %d (should be 1).\n",\
1737             1.0 / x != 1.0 / y);\
1738   else\
1739     printf ("x != y; this is wrong!\n");\
1740 \
1741   n = -x;\
1742   if (x == n)\
1743     printf ("Test 1.0 / x != 1.0 / -x returns %d (should be 1).\n",\
1744             1.0 / x != 1.0 / n);\
1745   else\
1746     printf ("x != -x; this is wrong!\n");\
1747 \
1748   p = +y;\
1749   if (x == p)\
1750     printf ("Test 1.0 / x != 1.0 / +y returns %d (should be 1).\n",\
1751             1.0 / x != 1.0 / p);\
1752   else\
1753     printf ("x != +y; this is wrong!\n");\
1754   p = -y;\
1755   if (x == p)\
1756     printf ("Test 1.0 / x != 1.0 / -y returns %d (should be 0).\n",\
1757             1.0 / x != 1.0 / p);\
1758   else\
1759     printf ("x != -y; this is wrong!\n");\
1760 }\
1761 void prefix ## test(void)\
1762 {\
1763     printf("testing '%s'\n", #typename);\
1764     prefix ## cmp(1, 2.5);\
1765     prefix ## cmp(2, 1.5);\
1766     prefix ## cmp(1, 1);\
1767     prefix ## fcast(234.6);\
1768     prefix ## fcast(-2334.6);\
1769     prefix ## call();\
1770     prefix ## signed_zeros();\
1771 }
1772
1773 FTEST(f, float, float, "%f")
1774 FTEST(d, double, double, "%f")
1775 FTEST(ld, long double, LONG_DOUBLE, "%Lf")
1776
1777 double ftab1[3] = { 1.2, 3.4, -5.6 };
1778
1779
1780 void float_test(void)
1781 {
1782 #if !defined(__arm__) || defined(__ARM_PCS_VFP)
1783     float fa, fb;
1784     double da, db;
1785     int a;
1786     unsigned int b;
1787
1788     printf("float_test:\n");
1789     printf("sizeof(float) = %d\n", sizeof(float));
1790     printf("sizeof(double) = %d\n", sizeof(double));
1791     printf("sizeof(long double) = %d\n", sizeof(LONG_DOUBLE));
1792     ftest();
1793     dtest();
1794     ldtest();
1795     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1796     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1797     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1798     da = 123;
1799     printf("da=%f\n", da);
1800     fa = 123;
1801     printf("fa=%f\n", fa);
1802     a = 4000000000;
1803     da = a;
1804     printf("da = %f\n", da);
1805     b = 4000000000;
1806     db = b;
1807     printf("db = %f\n", db);
1808 #endif
1809 }
1810
1811 int fib(int n)
1812 {
1813     if (n <= 2)
1814         return 1;
1815     else
1816         return fib(n-1) + fib(n-2);
1817 }
1818
1819 void funcptr_test()
1820 {
1821     void (*func)(int);
1822     int a;
1823     struct {
1824         int dummy;
1825         void (*func)(int);
1826     } st1;
1827
1828     printf("funcptr:\n");
1829     func = &num;
1830     (*func)(12345);
1831     func = num;
1832     a = 1;
1833     a = 1;
1834     func(12345);
1835     /* more complicated pointer computation */
1836     st1.func = num;
1837     st1.func(12346);
1838     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1839     printf("sizeof2 = %d\n", sizeof funcptr_test);
1840     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1841     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1842 }
1843
1844 void lloptest(long long a, long long b)
1845 {
1846     unsigned long long ua, ub;
1847
1848     ua = a;
1849     ub = b;
1850     /* arith */
1851     printf("arith: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1852            a + b,
1853            a - b,
1854            a * b);
1855
1856     if (b != 0) {
1857         printf("arith1: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1858            a / b,
1859            a % b);
1860     }
1861
1862     /* binary */
1863     printf("bin: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1864            a & b,
1865            a | b,
1866            a ^ b);
1867
1868     /* tests */
1869     printf("test: %d %d %d %d %d %d\n",
1870            a == b,
1871            a != b,
1872            a < b,
1873            a > b,
1874            a >= b,
1875            a <= b);
1876
1877     printf("utest: %d %d %d %d %d %d\n",
1878            ua == ub,
1879            ua != ub,
1880            ua < ub,
1881            ua > ub,
1882            ua >= ub,
1883            ua <= ub);
1884
1885     /* arith2 */
1886     a++;
1887     b++;
1888     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a, b);
1889     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a++, b++);
1890     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", --a, --b);
1891     printf("arith2: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a, b);
1892     b = ub = 0;
1893     printf("not: %d %d %d %d\n", !a, !ua, !b, !ub);
1894 }
1895
1896 void llshift(long long a, int b)
1897 {
1898     printf("shift: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1899            (unsigned long long)a >> b,
1900            a >> b,
1901            a << b);
1902     printf("shiftc: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1903            (unsigned long long)a >> 3,
1904            a >> 3,
1905            a << 3);
1906     printf("shiftc: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n",
1907            (unsigned long long)a >> 35,
1908            a >> 35,
1909            a << 35);
1910 }
1911
1912 void llfloat(void)
1913 {
1914     float fa;
1915     double da;
1916     LONG_DOUBLE lda;
1917     long long la, lb, lc;
1918     unsigned long long ula, ulb, ulc;
1919     la = 0x12345678;
1920     ula = 0x72345678;
1921     la = (la << 20) | 0x12345;
1922     ula = ula << 33;
1923     printf("la=" LONG_LONG_FORMAT " ula=" ULONG_LONG_FORMAT "\n", la, ula);
1924
1925     fa = la;
1926     da = la;
1927     lda = la;
1928     printf("lltof: %f %f %Lf\n", fa, da, lda);
1929
1930     la = fa;
1931     lb = da;
1932     lc = lda;
1933     printf("ftoll: " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", la, lb, lc);
1934
1935     fa = ula;
1936     da = ula;
1937     lda = ula;
1938     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1939
1940     ula = fa;
1941     ulb = da;
1942     ulc = lda;
1943     printf("ftoull: " ULONG_LONG_FORMAT " " ULONG_LONG_FORMAT " " ULONG_LONG_FORMAT "\n", ula, ulb, ulc);
1944 }
1945
1946 long long llfunc1(int a)
1947 {
1948     return a * 2;
1949 }
1950
1951 struct S {
1952     int id;
1953     char item;
1954 };
1955
1956 long long int value(struct S *v)
1957 {
1958     return ((long long int)v->item);
1959 }
1960
1961 long long llfunc2(long long x, long long y, int z)
1962 {
1963     return x * y * z;
1964 }
1965
1966 void longlong_test(void)
1967 {
1968     long long a, b, c;
1969     int ia;
1970     unsigned int ua;
1971     printf("longlong_test:\n");
1972     printf("sizeof(long long) = %d\n", sizeof(long long));
1973     ia = -1;
1974     ua = -2;
1975     a = ia;
1976     b = ua;
1977     printf(LONG_LONG_FORMAT " " LONG_LONG_FORMAT "\n", a, b);
1978     printf(LONG_LONG_FORMAT " " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %Lx\n",
1979            (long long)1,
1980            (long long)-2,
1981            1LL,
1982            0x1234567812345679);
1983     a = llfunc1(-3);
1984     printf(LONG_LONG_FORMAT "\n", a);
1985
1986     lloptest(1000, 23);
1987     lloptest(0xff, 0x1234);
1988     b = 0x72345678 << 10;
1989     lloptest(-3, b);
1990     llshift(0x123, 5);
1991     llshift(-23, 5);
1992     b = 0x72345678LL << 10;
1993     llshift(b, 47);
1994
1995     llfloat();
1996 #if 1
1997     b = 0x12345678;
1998     a = -1;
1999     c = a + b;
2000     printf("%Lx\n", c);
2001 #endif
2002
2003     /* long long reg spill test */
2004     {
2005           struct S a;
2006
2007           a.item = 3;
2008           printf("%lld\n", value(&a));
2009     }
2010     lloptest(0x80000000, 0);
2011
2012     {
2013         long long *p, v, **pp;
2014         v = 1;
2015         p = &v;
2016         p[0]++;
2017         printf("another long long spill test : %lld\n", *p);
2018         pp = &p;
2019
2020         v = llfunc2(**pp, **pp, ia);
2021         printf("a long long function (arm-)reg-args test : %lld\n", v);
2022     }
2023     a = 68719476720LL;
2024     b = 4294967295LL;
2025     printf("%d %d %d %d\n", a > b, a < b, a >= b, a <= b);
2026
2027     printf(LONG_LONG_FORMAT "\n", 0x123456789LLU);
2028
2029     /* long long pointer deref in argument passing test */
2030     a = 0x123;
2031     long long *p = &a;
2032     llshift(*p, 5);
2033 }
2034
2035 void manyarg_test(void)
2036 {
2037     LONG_DOUBLE ld = 1234567891234LL;
2038     printf("manyarg_test:\n");
2039     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
2040            1, 2, 3, 4, 5, 6, 7, 8,
2041            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
2042     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2043            LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %f %f\n",
2044            1, 2, 3, 4, 5, 6, 7, 8,
2045            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2046            1234567891234LL, 987654321986LL,
2047            42.0, 43.0);
2048     printf("%Lf %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2049            LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %f %f\n",
2050            ld, 1, 2, 3, 4, 5, 6, 7, 8,
2051            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2052            1234567891234LL, 987654321986LL,
2053            42.0, 43.0);
2054     printf("%d %d %d %d %d %d %d %d %Lf\n",
2055            1, 2, 3, 4, 5, 6, 7, 8, ld);
2056     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2057            LONG_LONG_FORMAT " " LONG_LONG_FORMAT "%f %f %Lf\n",
2058            1, 2, 3, 4, 5, 6, 7, 8,
2059            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2060            1234567891234LL, 987654321986LL,
2061            42.0, 43.0, ld);
2062     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2063            "%Lf " LONG_LONG_FORMAT " " LONG_LONG_FORMAT " %f %f %Lf\n",
2064            1, 2, 3, 4, 5, 6, 7, 8,
2065            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2066            ld, 1234567891234LL, 987654321986LL,
2067            42.0, 43.0, ld);
2068 }
2069
2070 void vprintf1(const char *fmt, ...)
2071 {
2072     va_list ap, aq;
2073     const char *p;
2074     int c, i;
2075     double d;
2076     long long ll;
2077     LONG_DOUBLE ld;
2078
2079     va_start(aq, fmt);
2080     va_copy(ap, aq);
2081
2082     p = fmt;
2083     for(;;) {
2084         c = *p;
2085         if (c == '\0')
2086             break;
2087         p++;
2088         if (c == '%') {
2089             c = *p;
2090             switch(c) {
2091             case '\0':
2092                 goto the_end;
2093             case 'd':
2094                 i = va_arg(ap, int);
2095                 printf("%d", i);
2096                 break;
2097             case 'f':
2098                 d = va_arg(ap, double);
2099                 printf("%f", d);
2100                 break;
2101             case 'l':
2102                 ll = va_arg(ap, long long);
2103                 printf(LONG_LONG_FORMAT, ll);
2104                 break;
2105             case 'F':
2106                 ld = va_arg(ap, LONG_DOUBLE);
2107                 printf("%Lf", ld);
2108                 break;
2109             }
2110             p++;
2111         } else {
2112             putchar(c);
2113         }
2114     }
2115  the_end:
2116     va_end(aq);
2117     va_end(ap);
2118 }
2119
2120 struct myspace {
2121     short int profile;
2122 };
2123
2124 void stdarg_for_struct(struct myspace bob, ...)
2125 {
2126     struct myspace george, bill;
2127     va_list ap;
2128     short int validate;
2129
2130     va_start(ap, bob);
2131     bill     = va_arg(ap, struct myspace);
2132     george   = va_arg(ap, struct myspace);
2133     validate = va_arg(ap, int);
2134     printf("stdarg_for_struct: %d %d %d %d\n",
2135            bob.profile, bill.profile, george.profile, validate);
2136     va_end(ap);
2137 }
2138
2139 void stdarg_for_libc(const char *fmt, ...)
2140 {
2141     va_list args;
2142     va_start(args, fmt);
2143     vprintf(fmt, args);
2144     va_end(args);
2145 }
2146
2147 void stdarg_test(void)
2148 {
2149     LONG_DOUBLE ld = 1234567891234LL;
2150     struct myspace bob;
2151
2152     vprintf1("%d %d %d\n", 1, 2, 3);
2153     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
2154     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
2155     vprintf1("%F %F %F\n", LONG_DOUBLE_LITERAL(1.2), LONG_DOUBLE_LITERAL(2.3), LONG_DOUBLE_LITERAL(3.4));
2156     vprintf1("%d %f %l %F %d %f %l %F\n",
2157              1, 1.2, 3LL, LONG_DOUBLE_LITERAL(4.5), 6, 7.8, 9LL, LONG_DOUBLE_LITERAL(0.1));
2158     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f\n",
2159              1, 2, 3, 4, 5, 6, 7, 8,
2160              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8);
2161     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
2162              1, 2, 3, 4, 5, 6, 7, 8,
2163              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
2164     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2165              "%l %l %f %f\n",
2166              1, 2, 3, 4, 5, 6, 7, 8,
2167              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2168              1234567891234LL, 987654321986LL,
2169              42.0, 43.0);
2170     vprintf1("%F %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2171              "%l %l %f %f\n",
2172              ld, 1, 2, 3, 4, 5, 6, 7, 8,
2173              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2174              1234567891234LL, 987654321986LL,
2175              42.0, 43.0);
2176     vprintf1("%d %d %d %d %d %d %d %d %F\n",
2177              1, 2, 3, 4, 5, 6, 7, 8, ld);
2178     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2179              "%l %l %f %f %F\n",
2180              1, 2, 3, 4, 5, 6, 7, 8,
2181              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2182              1234567891234LL, 987654321986LL,
2183              42.0, 43.0, ld);
2184     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2185              "%F %l %l %f %f %F\n",
2186              1, 2, 3, 4, 5, 6, 7, 8,
2187              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2188              ld, 1234567891234LL, 987654321986LL,
2189              42.0, 43.0, ld);
2190
2191     bob.profile = 42;
2192     stdarg_for_struct(bob, bob, bob, bob.profile);
2193     stdarg_for_libc("stdarg_for_libc: %s %.2f %d\n", "string", 1.23, 456);
2194 }
2195
2196 void whitespace_test(void)
2197 {
2198     char *str;
2199
2200 \f\v
#if 1
2201     pri\
2202 ntf("whitspace:\n");\f\v
2203 #endif
2204     pf("N=%d\n", 2);
2205
2206 #ifdef CORRECT_CR_HANDLING
2207     pri\
2208 ntf("aaa=%d\n", 3);
2209 #endif
2210
2211     pri\
2212 \
2213 ntf("min=%d\n", 4);
2214
2215 #ifdef ACCEPT_CR_IN_STRINGS
2216     printf("len1=%d\n", strlen("
2217 "));
2218 #ifdef CORRECT_CR_HANDLING
2219     str = "
2220 ";
2221     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
2222 #endif
2223     printf("len1=%d\n", strlen("
a
2224 "));
2225 #endif /* ACCEPT_CR_IN_STRINGS */
2226 }
2227
2228 int reltab[3] = { 1, 2, 3 };
2229
2230 int *rel1 = &reltab[1];
2231 int *rel2 = &reltab[2];
2232
2233 void getmyaddress(void)
2234 {
2235     printf("in getmyaddress\n");
2236 }
2237 unsigned long theaddress = (unsigned long)getmyaddress;
2238 void relocation_test(void)
2239 {
2240     void (*fptr)(void) = (void (*)(void))theaddress;
2241     printf("*rel1=%d\n", *rel1);
2242     printf("*rel2=%d\n", *rel2);
2243     fptr();
2244 }
2245
2246 void old_style_f(a,b,c)
2247      int a, b;
2248      double c;
2249 {
2250     printf("a=%d b=%d b=%f\n", a, b, c);
2251 }
2252
2253 void decl_func1(int cmpfn())
2254 {
2255     printf("cmpfn=%lx\n", (long)cmpfn);
2256 }
2257
2258 void decl_func2(cmpfn)
2259 int cmpfn();
2260 {
2261     printf("cmpfn=%lx\n", (long)cmpfn);
2262 }
2263
2264 void old_style_function(void)
2265 {
2266     old_style_f((void *)1, 2, 3.0);
2267     decl_func1(NULL);
2268     decl_func2(NULL);
2269 }
2270
2271 void alloca_test()
2272 {
2273 #if defined __i386__ || defined __x86_64__ || defined __arm__
2274     char *p = alloca(16);
2275     strcpy(p,"123456789012345");
2276     printf("alloca: p is %s\n", p);
2277     char *demo = "This is only a test.\n";
2278     /* Test alloca embedded in a larger expression */
2279     printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
2280 #endif
2281 }
2282
2283 void *bounds_checking_is_enabled()
2284 {
2285     char ca[10], *cp = ca-1;
2286     return (ca != cp + 1) ? cp : NULL;
2287 }
2288
2289 typedef int constant_negative_array_size_as_compile_time_assertion_idiom[(1 ? 2 : 0) - 1];
2290
2291 void c99_vla_test(int size1, int size2)
2292 {
2293 #if defined __i386__ || defined __x86_64__
2294     int size = size1 * size2;
2295     int tab1[size][2], tab2[10][2];
2296     void *tab1_ptr, *tab2_ptr, *bad_ptr;
2297
2298     /* "size" should have been 'captured' at tab1 declaration,
2299         so modifying it should have no effect on VLA behaviour. */
2300     size = size-1;
2301
2302     printf("Test C99 VLA 1 (sizeof): ");
2303     printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
2304     tab1_ptr = tab1;
2305     tab2_ptr = tab2;
2306     printf("Test C99 VLA 2 (ptrs subtract): ");
2307     printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
2308     printf("Test C99 VLA 3 (ptr add): ");
2309     printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
2310     printf("Test C99 VLA 4 (ptr access): ");
2311     tab1[size1][1] = 42;
2312     printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
2313
2314     printf("Test C99 VLA 5 (bounds checking (might be disabled)): ");
2315     if (bad_ptr = bounds_checking_is_enabled()) {
2316         int *t1 = &tab1[size1 * size2 - 1][3];
2317         int *t2 = &tab2[9][3];
2318         printf("%s ", bad_ptr == t1 ? "PASSED" : "FAILED");
2319         printf("%s ", bad_ptr == t2 ? "PASSED" : "FAILED");
2320
2321         char*c1 = 1 + sizeof(tab1) + (char*)tab1;
2322         char*c2 = 1 + sizeof(tab2) + (char*)tab2;
2323         printf("%s ", bad_ptr == c1 ? "PASSED" : "FAILED");
2324         printf("%s ", bad_ptr == c2 ? "PASSED" : "FAILED");
2325
2326         int *i1 = tab1[-1];
2327         int *i2 = tab2[-1];
2328         printf("%s ", bad_ptr == i1 ? "PASSED" : "FAILED");
2329         printf("%s ", bad_ptr == i2 ? "PASSED" : "FAILED");
2330
2331         int *x1 = tab1[size1 * size2 + 1];
2332         int *x2 = tab2[10 + 1];
2333         printf("%s ", bad_ptr == x1 ? "PASSED" : "FAILED");
2334         printf("%s ", bad_ptr == x2 ? "PASSED" : "FAILED");
2335     } else {
2336         printf("PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED ");
2337     }
2338     printf("\n");
2339 #endif
2340 }
2341
2342 #ifndef __TINYC__
2343 typedef __SIZE_TYPE__ uintptr_t;
2344 #endif
2345
2346 void sizeof_test(void)
2347 {
2348     int a;
2349     int **ptr;
2350
2351     printf("sizeof(int) = %d\n", sizeof(int));
2352     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
2353     printf("sizeof(long) = %d\n", sizeof(long));
2354     printf("sizeof(unsigned long) = %d\n", sizeof(unsigned long));
2355     printf("sizeof(short) = %d\n", sizeof(short));
2356     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
2357     printf("sizeof(char) = %d\n", sizeof(char));
2358     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
2359     printf("sizeof(func) = %d\n", sizeof sizeof_test());
2360     a = 1;
2361     printf("sizeof(a++) = %d\n", sizeof a++);
2362     printf("a=%d\n", a);
2363     ptr = NULL;
2364     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
2365
2366     /* The type of sizeof should be as large as a pointer, actually
2367        it should be size_t.  */
2368     printf("sizeof(sizeof(int) = %d\n", sizeof(sizeof(int)));
2369     uintptr_t t = 1;
2370     uintptr_t t2;
2371     /* Effectively <<32, but defined also on 32bit machines.  */
2372     t <<= 16;
2373     t <<= 16;
2374     t++;
2375     /* This checks that sizeof really can be used to manipulate
2376        uintptr_t objects, without truncation.  */
2377     t2 = t & -sizeof(uintptr_t);
2378     printf ("%lu %lu\n", t, t2);
2379
2380     /* some alignof tests */
2381     printf("__alignof__(int) = %d\n", __alignof__(int));
2382     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
2383     printf("__alignof__(short) = %d\n", __alignof__(short));
2384     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
2385     printf("__alignof__(char) = %d\n", __alignof__(char));
2386     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
2387     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
2388 }
2389
2390 void typeof_test(void)
2391 {
2392     double a;
2393     typeof(a) b;
2394     typeof(float) c;
2395
2396     a = 1.5;
2397     b = 2.5;
2398     c = 3.5;
2399     printf("a=%f b=%f c=%f\n", a, b, c);
2400 }
2401
2402 void statement_expr_test(void)
2403 {
2404     int a, i;
2405
2406     a = 0;
2407     for(i=0;i<10;i++) {
2408         a += 1 +
2409             ( { int b, j;
2410                 b = 0;
2411                 for(j=0;j<5;j++)
2412                     b += j; b;
2413             } );
2414     }
2415     printf("a=%d\n", a);
2416
2417 }
2418
2419 void local_label_test(void)
2420 {
2421     int a;
2422     goto l1;
2423  l2:
2424     a = 1 + ({
2425         __label__ l1, l2, l3, l4;
2426         goto l1;
2427     l4:
2428         printf("aa1\n");
2429         goto l3;
2430     l2:
2431         printf("aa3\n");
2432         goto l4;
2433     l1:
2434         printf("aa2\n");
2435         goto l2;
2436     l3:;
2437         1;
2438     });
2439     printf("a=%d\n", a);
2440     return;
2441  l4:
2442     printf("bb1\n");
2443     goto l2;
2444  l1:
2445     printf("bb2\n");
2446     goto l4;
2447 }
2448
2449 /* inline assembler test */
2450 #if defined(__i386__) || defined(__x86_64__)
2451
2452 /* from linux kernel */
2453 static char * strncat1(char * dest,const char * src,size_t count)
2454 {
2455 long d0, d1, d2, d3;
2456 __asm__ __volatile__(
2457         "repne\n\t"
2458         "scasb\n\t"
2459         "dec %1\n\t"
2460         "mov %8,%3\n"
2461         "1:\tdec %3\n\t"
2462         "js 2f\n\t"
2463         "lodsb\n\t"
2464         "stosb\n\t"
2465         "testb %%al,%%al\n\t"
2466         "jne 1b\n"
2467         "2:\txor %2,%2\n\t"
2468         "stosb"
2469         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2470         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2471         : "memory");
2472 return dest;
2473 }
2474
2475 static char * strncat2(char * dest,const char * src,size_t count)
2476 {
2477 long d0, d1, d2, d3;
2478 __asm__ __volatile__(
2479         "repne scasb\n\t" /* one-line repne prefix + string op */
2480         "dec %1\n\t"
2481         "mov %8,%3\n"
2482         "1:\tdec %3\n\t"
2483         "js 2f\n\t"
2484         "lodsb\n\t"
2485         "stosb\n\t"
2486         "testb %%al,%%al\n\t"
2487         "jne 1b\n"
2488         "2:\txor %2,%2\n\t"
2489         "stosb"
2490         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2491         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2492         : "memory");
2493 return dest;
2494 }
2495
2496 static inline void * memcpy1(void * to, const void * from, size_t n)
2497 {
2498 long d0, d1, d2;
2499 __asm__ __volatile__(
2500         "rep ; movsl\n\t"
2501         "testb $2,%b4\n\t"
2502         "je 1f\n\t"
2503         "movsw\n"
2504         "1:\ttestb $1,%b4\n\t"
2505         "je 2f\n\t"
2506         "movsb\n"
2507         "2:"
2508         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2509         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2510         : "memory");
2511 return (to);
2512 }
2513
2514 static inline void * memcpy2(void * to, const void * from, size_t n)
2515 {
2516 long d0, d1, d2;
2517 __asm__ __volatile__(
2518         "rep movsl\n\t"  /* one-line rep prefix + string op */
2519         "testb $2,%b4\n\t"
2520         "je 1f\n\t"
2521         "movsw\n"
2522         "1:\ttestb $1,%b4\n\t"
2523         "je 2f\n\t"
2524         "movsb\n"
2525         "2:"
2526         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2527         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2528         : "memory");
2529 return (to);
2530 }
2531
2532 static __inline__ void sigaddset1(unsigned int *set, int _sig)
2533 {
2534         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2535 }
2536
2537 static __inline__ void sigdelset1(unsigned int *set, int _sig)
2538 {
2539         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2540 }
2541
2542 static __inline__ __const__ unsigned int swab32(unsigned int x)
2543 {
2544         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
2545                 "rorl $16,%0\n\t"       /* swap words           */
2546                 "xchgb %b0,%h0"         /* swap higher bytes    */
2547                 :"=" "q" (x)
2548                 : "0" (x));
2549         return x;
2550 }
2551
2552 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
2553 {
2554     unsigned long long res;
2555 #ifdef __x86_64__
2556     /* Using the A constraint is wrong (it means rdx:rax, which is too large)
2557        but still test the 32bit->64bit mull.  */
2558     unsigned int resh, resl;
2559     __asm__("mull %2" : "=a" (resl), "=d" (resh) : "a" (a), "r" (b));
2560     res = ((unsigned long long)resh << 32) | resl;
2561 #else
2562     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
2563 #endif
2564     return res;
2565 }
2566
2567 static __inline__ unsigned long long inc64(unsigned long long a)
2568 {
2569     unsigned long long res;
2570 #ifdef __x86_64__
2571     /* Using the A constraint is wrong, and increments are tested
2572        elsewere.  */
2573     res = a + 1;
2574 #else
2575     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
2576 #endif
2577     return res;
2578 }
2579
2580 struct struct123 {
2581     int a;
2582     int b;
2583 };
2584 struct struct1231 {
2585     unsigned long addr;
2586 };
2587
2588 unsigned long mconstraint_test(struct struct1231 *r)
2589 {
2590     unsigned long ret;
2591     unsigned int a[2];
2592     a[0] = 0;
2593     __asm__ volatile ("lea %2,%0; movl 4(%0),%k0; addl %2,%k0; movl $51,%2; movl $52,4%2; movl $63,%1"
2594                      : "=&r" (ret), "=m" (a)
2595                      : "m" (*(struct struct123 *)r->addr));
2596     return ret + a[0];
2597 }
2598
2599 #ifdef __x86_64__
2600 int fls64(unsigned long long x)
2601 {
2602   int bitpos = -1;
2603   asm("bsrq %1,%q0"
2604       : "+r" (bitpos)
2605       : "rm" (x));
2606   return bitpos + 1;
2607 }
2608 #endif
2609
2610 void other_constraints_test(void)
2611 {
2612     unsigned long ret;
2613     int var;
2614     __asm__ volatile ("movq %P1,%0" : "=r" (ret) : "p" (&var));
2615     printf ("oc1: %d\n", ret == (unsigned long)&var);
2616 }
2617
2618 unsigned int set;
2619
2620 void asm_test(void)
2621 {
2622     char buf[128];
2623     unsigned int val;
2624     struct struct123 s1;
2625     struct struct1231 s2 = { (unsigned long)&s1 };
2626
2627     printf("inline asm:\n");
2628
2629     // parse 0x1E-1 as 3 tokens in asm mode
2630     asm volatile ("mov $0x1E-1,%eax");
2631
2632     /* test the no operand case */
2633     asm volatile ("xorl %eax, %eax");
2634
2635     memcpy1(buf, "hello", 6);
2636     strncat1(buf, " worldXXXXX", 3);
2637     printf("%s\n", buf);
2638
2639     memcpy2(buf, "hello", 6);
2640     strncat2(buf, " worldXXXXX", 3);
2641     printf("%s\n", buf);
2642
2643     /* 'A' constraint test */
2644     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
2645     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
2646
2647     s1.a = 42;
2648     s1.b = 43;
2649     printf("mconstraint: %d", mconstraint_test(&s2));
2650     printf(" %d %d\n", s1.a, s1.b);
2651     other_constraints_test();
2652     set = 0xff;
2653     sigdelset1(&set, 2);
2654     sigaddset1(&set, 16);
2655     /* NOTE: we test here if C labels are correctly restored after the
2656        asm statement */
2657     goto label1;
2658  label2:
2659     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
2660     printf("set=0x%x\n", set);
2661     val = 0x01020304;
2662     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
2663     return;
2664  label1:
2665     goto label2;
2666 }
2667
2668 #else
2669
2670 void asm_test(void)
2671 {
2672 }
2673
2674 #endif
2675
2676 #define COMPAT_TYPE(type1, type2) \
2677 {\
2678     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
2679            __builtin_types_compatible_p (type1, type2));\
2680 }
2681
2682 int constant_p_var;
2683
2684 void builtin_test(void)
2685 {
2686 #if GCC_MAJOR >= 3
2687     COMPAT_TYPE(int, int);
2688     COMPAT_TYPE(int, unsigned int);
2689     COMPAT_TYPE(int, char);
2690     COMPAT_TYPE(int, const int);
2691     COMPAT_TYPE(int, volatile int);
2692     COMPAT_TYPE(int *, int *);
2693     COMPAT_TYPE(int *, void *);
2694     COMPAT_TYPE(int *, const int *);
2695     COMPAT_TYPE(char *, unsigned char *);
2696     COMPAT_TYPE(char *, signed char *);
2697     COMPAT_TYPE(char *, char *);
2698 /* space is needed because tcc preprocessor introduces a space between each token */
2699     COMPAT_TYPE(char * *, void *);
2700 #endif
2701     printf("res = %d\n", __builtin_constant_p(1));
2702     printf("res = %d\n", __builtin_constant_p(1 + 2));
2703     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
2704     printf("res = %d\n", __builtin_constant_p(constant_p_var));
2705 }
2706
2707 #ifndef _WIN32
2708 extern int __attribute__((weak)) weak_f1(void);
2709 extern int __attribute__((weak)) weak_f2(void);
2710 extern int                       weak_f3(void);
2711 extern int __attribute__((weak)) weak_v1;
2712 extern int __attribute__((weak)) weak_v2;
2713 extern int                       weak_v3;
2714
2715 extern int                           (*weak_fpa)() __attribute__((weak));
2716 extern int __attribute__((weak))     (*weak_fpb)();
2717 extern     __attribute__((weak)) int (*weak_fpc)();
2718
2719 extern int                     weak_asm_f1(void) asm("weak_asm_f1x") __attribute((weak));
2720 extern int __attribute((weak)) weak_asm_f2(void) asm("weak_asm_f2x")                    ;
2721 extern int __attribute((weak)) weak_asm_f3(void) asm("weak_asm_f3x") __attribute((weak));
2722 extern int                     weak_asm_v1       asm("weak_asm_v1x") __attribute((weak));
2723 extern int __attribute((weak)) weak_asm_v2       asm("weak_asm_v2x")                    ;
2724 extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak));
2725
2726 static const size_t dummy = 0;
2727 extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy")));
2728 extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2;
2729 extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3;
2730
2731 int some_lib_func(void);
2732 int dummy_impl_of_slf(void) { return 444; }
2733 int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf")));
2734
2735 int weak_toolate() __attribute__((weak));
2736 int weak_toolate() { return 0; }
2737
2738 void __attribute__((weak)) weak_test(void)
2739 {
2740         printf("weak_f1=%d\n", weak_f1 ? weak_f1() : 123);
2741         printf("weak_f2=%d\n", weak_f2 ? weak_f2() : 123);
2742         printf("weak_f3=%d\n", weak_f3 ? weak_f3() : 123);
2743         printf("weak_v1=%d\n",&weak_v1 ? weak_v1   : 123);
2744         printf("weak_v2=%d\n",&weak_v2 ? weak_v2   : 123);
2745         printf("weak_v3=%d\n",&weak_v3 ? weak_v3   : 123);
2746
2747         printf("weak_fpa=%d\n",&weak_fpa ? weak_fpa() : 123);
2748         printf("weak_fpb=%d\n",&weak_fpb ? weak_fpb() : 123);
2749         printf("weak_fpc=%d\n",&weak_fpc ? weak_fpc() : 123);
2750
2751         printf("weak_asm_f1=%d\n", weak_asm_f1 != NULL);
2752         printf("weak_asm_f2=%d\n", weak_asm_f2 != NULL);
2753         printf("weak_asm_f3=%d\n", weak_asm_f3 != NULL);
2754         printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL);
2755         printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL);
2756         printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL);
2757 }
2758
2759 int __attribute__((weak)) weak_f2() { return 222; }
2760 int __attribute__((weak)) weak_f3() { return 333; }
2761 int __attribute__((weak)) weak_v2 = 222;
2762 int __attribute__((weak)) weak_v3 = 333;
2763 #endif
2764
2765 void const_func(const int a)
2766 {
2767 }
2768
2769 void const_warn_test(void)
2770 {
2771     const_func(1);
2772 }
2773
2774 struct condstruct {
2775   int i;
2776 };
2777
2778 int getme (struct condstruct *s, int i)
2779 {
2780   int i1 = (i == 0 ? 0 : s)->i;
2781   int i2 = (i == 0 ? s : 0)->i;
2782   int i3 = (i == 0 ? (void*)0 : s)->i;
2783   int i4 = (i == 0 ? s : (void*)0)->i;
2784   return i1 + i2 + i3 + i4;
2785 }
2786
2787 struct global_data
2788 {
2789   int a[40];
2790   int *b[40];
2791 };
2792
2793 struct global_data global_data;
2794
2795 int global_data_getstuff (int *, int);
2796
2797 void global_data_callit (int i)
2798 {
2799   *global_data.b[i] = global_data_getstuff (global_data.b[i], 1);
2800 }
2801
2802 int global_data_getstuff (int *p, int i)
2803 {
2804   return *p + i;
2805 }
2806
2807 void global_data_test (void)
2808 {
2809   global_data.a[0] = 42;
2810   global_data.b[0] = &global_data.a[0];
2811   global_data_callit (0);
2812   printf ("%d\n", global_data.a[0]);
2813 }
2814
2815 struct cmpcmpS
2816 {
2817   unsigned char fill : 3;
2818   unsigned char b1 : 1;
2819   unsigned char b2 : 1;
2820   unsigned char fill2 : 3;
2821 };
2822
2823 int glob1, glob2, glob3;
2824
2825 void compare_comparisons (struct cmpcmpS *s)
2826 {
2827   if (s->b1 != (glob1 == glob2)
2828       || (s->b2 != (glob1 == glob3)))
2829     printf ("comparing comparisons broken\n");
2830 }
2831
2832 void cmp_comparison_test(void)
2833 {
2834   struct cmpcmpS s;
2835   s.b1 = 1;
2836   glob1 = 42; glob2 = 42;
2837   s.b2 = 0;
2838   glob3 = 43;
2839   compare_comparisons (&s);
2840 }
2841
2842 int fcompare (double a, double b, int code)
2843 {
2844   switch (code) {
2845     case 0: return a == b;
2846     case 1: return a != b;
2847     case 2: return a < b;
2848     case 3: return a >= b;
2849     case 4: return a > b;
2850     case 5: return a <= b;
2851   }
2852 }
2853
2854 void math_cmp_test(void)
2855 {
2856   double nan = 0.0/0.0;
2857   double one = 1.0;
2858   double two = 2.0;
2859   int comp = 0;
2860 #define bug(a,b,op,iop,part) printf("Test broken: %s %s %s %s %d\n", #a, #b, #op, #iop, part)
2861
2862   /* This asserts that "a op b" is _not_ true, but "a iop b" is true.
2863      And it does this in various ways so that all code generation paths
2864      are checked (generating inverted tests, or non-inverted tests, or
2865      producing a 0/1 value without jumps (that's done in the fcompare
2866      function).  */
2867 #define FCMP(a,b,op,iop,code) \
2868   if (fcompare (a,b,code))    \
2869     bug (a,b,op,iop,1); \
2870   if (a op b) \
2871     bug (a,b,op,iop,2); \
2872   if (a iop b) \
2873     ; \
2874   else \
2875     bug (a,b,op,iop,3); \
2876   if ((a op b) || comp) \
2877     bug (a,b,op,iop,4); \
2878   if ((a iop b) || comp) \
2879     ; \
2880   else \
2881     bug (a,b,op,iop,5);
2882
2883   /* Equality tests.  */
2884   FCMP(nan, nan, ==, !=, 0);
2885   FCMP(one, two, ==, !=, 0);
2886   FCMP(one, one, !=, ==, 1);
2887   /* Non-equality is a bit special.  */
2888   if (!fcompare (nan, nan, 1))
2889     bug (nan, nan, !=, ==, 6);
2890
2891   /* Relational tests on numbers.  */
2892   FCMP(two, one, <, >=, 2);
2893   FCMP(one, two, >=, <, 3);
2894   FCMP(one, two, >, <=, 4);
2895   FCMP(two, one, <=, >, 5);
2896
2897   /* Relational tests on NaNs.  Note that the inverse op here is
2898      always !=, there's no operator in C that is equivalent to !(a < b),
2899      when NaNs are involved, same for the other relational ops.  */
2900   FCMP(nan, nan, <, !=, 2);
2901   FCMP(nan, nan, >=, !=, 3);
2902   FCMP(nan, nan, >, !=, 4);
2903   FCMP(nan, nan, <=, !=, 5);
2904 }
2905
2906 double get100 () { return 100.0; }
2907
2908 void callsave_test(void)
2909 {
2910 #if defined __i386__ || defined __x86_64__ || defined __arm__
2911   int i, s; double *d; double t;
2912   s = sizeof (double);
2913   printf ("callsavetest: %d\n", s);
2914   d = alloca (sizeof(double));
2915   d[0] = 10.0;
2916   /* x86-64 had a bug were the next call to get100 would evict
2917      the lvalue &d[0] as VT_LLOCAL, and the reload would be done
2918      in int type, not pointer type.  When alloca returns a pointer
2919      with the high 32 bit set (which is likely on x86-64) the access
2920      generates a segfault.  */
2921   i = d[0] > get100 ();
2922   printf ("%d\n", i);
2923 #endif
2924 }
2925
2926
2927 void bfa3(ptrdiff_t str_offset)
2928 {
2929     printf("bfa3: %s\n", (char *)__builtin_frame_address(3) + str_offset);
2930 }
2931 void bfa2(ptrdiff_t str_offset)
2932 {
2933     printf("bfa2: %s\n", (char *)__builtin_frame_address(2) + str_offset);
2934     bfa3(str_offset);
2935 }
2936 void bfa1(ptrdiff_t str_offset)
2937 {
2938     printf("bfa1: %s\n", (char *)__builtin_frame_address(1) + str_offset);
2939     bfa2(str_offset);
2940 }
2941
2942 void builtin_frame_address_test(void)
2943 {
2944 /* builtin_frame_address fails on ARM with gcc which make test3 fail */
2945 #ifndef __arm__
2946     char str[] = "__builtin_frame_address";
2947     char *fp0 = __builtin_frame_address(0);
2948
2949     printf("str: %s\n", str);
2950     bfa1(str-fp0);
2951 #endif
2952 }
2953
2954 char via_volatile (char i)
2955 {
2956   char volatile vi;
2957   vi = i;
2958   return vi;
2959 }