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 // MinGW has 80-bit rather than 64-bit long double which isn't compatible with TCC or MSVC
  20 #if defined(_WIN32) && defined(__GNUC__)
  21 #define LONG_DOUBLE double
  22 #define LONG_DOUBLE_LITERAL(x) x
  23 #else
  24 #define LONG_DOUBLE long double
  25 #define LONG_DOUBLE_LITERAL(x) x ## L
  26 #endif
  27
  28 /* deprecated and no longer supported in gcc 3.3 */
  29 //#define ACCEPT_CR_IN_STRINGS
  30
  31 /* __VA_ARGS__ and __func__ support */
  32 #define C99_MACROS
  33
  34 /* test various include syntaxes */
  35
  36 #define TCCLIB_INC <tcclib.h>
  37 #define TCCLIB_INC1 <tcclib
  38 #define TCCLIB_INC2 h>
  39 #define TCCLIB_INC3 "tcclib"
  40
  41 #include TCCLIB_INC
  42
  43 #include TCCLIB_INC1.TCCLIB_INC2
  44
  45 #include TCCLIB_INC1.h>
  46
  47 /* gcc 3.2 does not accept that (bug ?) */
  48 //#include TCCLIB_INC3 ".h"
  49
  50 #include <tcclib.h>
  51
  52 #include "tcclib.h"
  53
  54 void string_test();
  55 void expr_test();
  56 void macro_test();
  57 void recursive_macro_test();
  58 void scope_test();
  59 void forward_test();
  60 void funcptr_test();
  61 void loop_test();
  62 void switch_test();
  63 void goto_test();
  64 void enum_test();
  65 void typedef_test();
  66 void struct_test();
  67 void array_test();
  68 void expr_ptr_test();
  69 void bool_test();
  70 void expr2_test();
  71 void constant_expr_test();
  72 void expr_cmp_test();
  73 void char_short_test();
  74 void init_test(void);
  75 void compound_literal_test(void);
  76 int kr_test();
  77 void struct_assign_test(void);
  78 void cast_test(void);
  79 void bitfield_test(void);
  80 void c99_bool_test(void);
  81 void float_test(void);
  82 void longlong_test(void);
  83 void manyarg_test(void);
  84 void stdarg_test(void);
  85 void whitespace_test(void);
  86 void relocation_test(void);
  87 void old_style_function(void);
  88 void alloca_test(void);
  89 void c99_vla_test(int size1, int size2);
  90 void sizeof_test(void);
  91 void typeof_test(void);
  92 void local_label_test(void);
  93 void statement_expr_test(void);
  94 void asm_test(void);
  95 void builtin_test(void);
  96 void weak_test(void);
  97 void global_data_test(void);
  98 void cmp_comparison_test(void);
  99 void math_cmp_test(void);
 100 void callsave_test(void);
 101 void builtin_frame_address_test(void);
 102
 103 int fib(int n);
 104 void num(int n);
 105 void forward_ref(void);
 106 int isid(int c);
 107
 108 #define A 2
 109 #define N 1234 + A
 110 #define pf printf
 111 #define M1(a, b)  (a) + (b)
 112
 113 #define str\
 114 (s) # s
 115 #define glue(a, b) a ## b
 116 #define xglue(a, b) glue(a, b)
 117 #define HIGHLOW "hello"
 118 #define LOW LOW ", world"
 119
 120 static int onetwothree = 123;
 121 #define onetwothree4 onetwothree
 122 #define onetwothree xglue(onetwothree,4)
 123
 124 #define min(a, b) ((a) < (b) ? (a) : (b))
 125
 126 #ifdef C99_MACROS
 127 #define dprintf(level,...) printf(__VA_ARGS__)
 128 #endif
 129
 130 /* gcc vararg macros */
 131 #define dprintf1(level, fmt, args...) printf(fmt, ## args)
 132
 133 #define MACRO_NOARGS()
 134
 135 #define AAA 3
 136 #undef AAA
 137 #define AAA 4
 138
 139 #if 1
 140 #define B3 1
 141 #elif 1
 142 #define B3 2
 143 #elif 0
 144 #define B3 3
 145 #else
 146 #define B3 4
 147 #endif
 148
 149 #define __INT64_C(c)    c ## LL
 150 #define INT64_MIN       (-__INT64_C(9223372036854775807)-1)
 151
 152 int qq(int x)
 153 {
 154     return x + 40;
 155 }
 156 #define qq(x) x
 157
 158 #define spin_lock(lock) do { } while (0)
 159 #define wq_spin_lock spin_lock
 160 #define TEST2() wq_spin_lock(a)
 161
 162 void macro_test(void)
 163 {
 164     printf("macro:\n");\f\v
 165     pf("N=%d\n", N);
 166     printf("aaa=%d\n", AAA);
 167
 168     printf("min=%d\n", min(1, min(2, -1)));
 169
 170     printf("s1=%s\n", glue(HIGH, LOW));
 171     printf("s2=%s\n", xglue(HIGH, LOW));
 172     printf("s3=%s\n", str("c"));
 173     printf("s4=%s\n", str(a1));
 174     printf("B3=%d\n", B3);
 175
 176     printf("onetwothree=%d\n", onetwothree);
 177
 178 #ifdef A
 179     printf("A defined\n");
 180 #endif
 181 #ifdef B
 182     printf("B defined\n");
 183 #endif
 184 #ifdef A
 185     printf("A defined\n");
 186 #else
 187     printf("A not defined\n");
 188 #endif
 189 #ifdef B
 190     printf("B defined\n");
 191 #else
 192     printf("B not defined\n");
 193 #endif
 194
 195 #ifdef A
 196     printf("A defined\n");
 197 #ifdef B
 198     printf("B1 defined\n");
 199 #else
 200     printf("B1 not defined\n");
 201 #endif
 202 #else
 203     printf("A not defined\n");
 204 #ifdef B
 205     printf("B2 defined\n");
 206 #else
 207     printf("B2 not defined\n");
 208 #endif
 209 #endif
 210
 211 #if 1+1
 212     printf("test true1\n");
 213 #endif
 214 #if 0
 215     printf("test true2\n");
 216 #endif
 217 #if 1-1
 218     printf("test true3\n");
 219 #endif
 220 #if defined(A)
 221     printf("test trueA\n");
 222 #endif
 223 #if defined(B)
 224     printf("test trueB\n");
 225 #endif
 226
 227 #if 0
 228     printf("test 0\n");
 229 #elif 0
 230     printf("test 1\n");
 231 #elif 2
 232     printf("test 2\n");
 233 #else
 234     printf("test 3\n");
 235 #endif
 236
 237     MACRO_NOARGS();
 238
 239 #ifdef __LINE__
 240     printf("__LINE__ defined\n");
 241 #endif
 242
 243     printf("__LINE__=%d __FILE__=%s\n",
 244            __LINE__, __FILE__);
 245 #line 200
 246     printf("__LINE__=%d __FILE__=%s\n",
 247            __LINE__, __FILE__);
 248 #line 203 "test"
 249     printf("__LINE__=%d __FILE__=%s\n",
 250            __LINE__, __FILE__);
 251 #line 227 "tcctest.c"
 252
 253     /* not strictly preprocessor, but we test it there */
 254 #ifdef C99_MACROS
 255     printf("__func__ = %s\n", __func__);
 256     dprintf(1, "vaarg=%d\n", 1);
 257 #endif
 258     dprintf1(1, "vaarg1\n");
 259     dprintf1(1, "vaarg1=%d\n", 2);
 260     dprintf1(1, "vaarg1=%d %d\n", 1, 2);
 261
 262     /* gcc extension */
 263     printf("func='%s'\n", __FUNCTION__);
 264
 265     /* complicated macros in glibc */
 266     printf("INT64_MIN=%Ld\n", INT64_MIN);
 267     {
 268         int a;
 269         a = 1;
 270         glue(a+, +);
 271         printf("a=%d\n", a);
 272         glue(a <, <= 2);
 273         printf("a=%d\n", a);
 274     }
 275
 276     /* macro function with argument outside the macro string */
 277 #define MF_s MF_hello
 278 #define MF_hello(msg) printf("%s\n",msg)
 279
 280 #define MF_t printf("tralala\n"); MF_hello
 281
 282     MF_s("hi");
 283     MF_t("hi");
 284
 285     /* test macro substituion inside args (should not eat stream) */
 286     printf("qq=%d\n", qq(qq)(2));
 287
 288     /* test zero argument case. NOTE: gcc 2.95.x does not accept a
 289        null argument without a space. gcc 3.2 fixes that. */
 290
 291 #define qq1(x) 1
 292     printf("qq1=%d\n", qq1( ));
 293
 294     /* comment with stray handling *\
 295 /
 296        /* this is a valid *\/ comment */
 297        /* this is a valid comment *\*/
 298     //  this is a valid\
 299 comment
 300
 301     /* test function macro substitution when the function name is
 302        substituted */
 303     TEST2();
 304
 305     /* And again when the name and parenthes are separated by a
 306        comment.  */
 307     TEST2 /* the comment */ ();
 308 }
 309
 310
 311 static void print_num(char *fn, int line, int num) {
 312     printf("fn %s, line %d, num %d\n", fn, line, num);
 313 }
 314
 315 void recursive_macro_test(void)
 316 {
 317
 318 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 319 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 320 #define STB_WEAK        2               /* Weak symbol */
 321 #define ELFW(type) ELF##32##_##type
 322     printf("%d\n", ELFW(ST_INFO)(STB_WEAK, ELFW(ST_TYPE)(123)));
 323
 324 #define WRAP(x) x
 325
 326 #define print_num(x) print_num(__FILE__,__LINE__,x)
 327     print_num(123);
 328     WRAP(print_num(123));
 329     WRAP(WRAP(print_num(123)));
 330
 331 static struct recursive_macro { int rm_field; } G;
 332 #define rm_field (G.rm_field)
 333     printf("rm_field = %d\n", rm_field);
 334     printf("rm_field = %d\n", WRAP(rm_field));
 335     WRAP((printf("rm_field = %d %d\n", rm_field, WRAP(rm_field))));
 336 }
 337
 338 int op(a,b)
 339 {
 340     return a / b;
 341 }
 342
 343 int ret(a)
 344 {
 345     if (a == 2)
 346         return 1;
 347     if (a == 3)
 348         return 2;
 349     return 0;
 350 }
 351
 352 void ps(const char *s)
 353 {
 354     int c;
 355     while (1) {
 356         c = *s;
 357         if (c == 0)
 358             break;
 359         printf("%c", c);
 360         s++;
 361     }
 362 }
 363
 364 const char foo1_string[] = "\
 365 bar\n\
 366 test\14\
 367 1";
 368
 369 void string_test()
 370 {
 371     unsigned int b;
 372     printf("string:\n");
 373     printf("\141\1423\143\n");/* dezdez test */
 374     printf("\x41\x42\x43\x3a\n");
 375     printf("c=%c\n", 'r');
 376     printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
 377     printf("foo1_string='%s'\n", foo1_string);
 378 #if 0
 379     printf("wstring=%S\n", L"abc");
 380     printf("wstring=%S\n", L"abc" L"def" "ghi");
 381     printf("'\\377'=%d '\\xff'=%d\n", '\377', '\xff');
 382     printf("L'\\377'=%d L'\\xff'=%d\n", L'\377', L'\xff');
 383 #endif
 384     ps("test\n");
 385     b = 32;
 386     while ((b = b + 1) < 96) {
 387         printf("%c", b);
 388     }
 389     printf("\n");
 390     printf("fib=%d\n", fib(33));
 391     b = 262144;
 392     while (b != 0x80000000) {
 393         num(b);
 394         b = b * 2;
 395     }
 396 }
 397
 398 void loop_test()
 399 {
 400     int i;
 401     i = 0;
 402     while (i < 10)
 403         printf("%d", i++);
 404     printf("\n");
 405     for(i = 0; i < 10;i++)
 406         printf("%d", i);
 407     printf("\n");
 408     i = 0;
 409     do {
 410         printf("%d", i++);
 411     } while (i < 10);
 412     printf("\n");
 413
 414     char count = 123;
 415     /* c99 for loop init test */
 416     for (size_t count = 1; count < 3; count++)
 417         printf("count=%d\n", count);
 418     printf("count = %d\n", count);
 419
 420     /* break/continue tests */
 421     i = 0;
 422     while (1) {
 423         if (i == 6)
 424             break;
 425         i++;
 426         if (i == 3)
 427             continue;
 428         printf("%d", i);
 429     }
 430     printf("\n");
 431
 432     /* break/continue tests */
 433     i = 0;
 434     do {
 435         if (i == 6)
 436             break;
 437         i++;
 438         if (i == 3)
 439             continue;
 440         printf("%d", i);
 441     } while(1);
 442     printf("\n");
 443
 444     for(i = 0;i < 10;i++) {
 445         if (i == 3)
 446             continue;
 447         printf("%d", i);
 448     }
 449     printf("\n");
 450 }
 451
 452 typedef int typedef_and_label;
 453
 454 void goto_test()
 455 {
 456     int i;
 457     static void *label_table[3] = { &&label1, &&label2, &&label3 };
 458
 459     printf("goto:\n");
 460     i = 0;
 461     /* This needs to parse as label, not as start of decl.  */
 462  typedef_and_label:
 463  s_loop:
 464     if (i >= 10)
 465         goto s_end;
 466     printf("%d", i);
 467     i++;
 468     goto s_loop;
 469  s_end:
 470     printf("\n");
 471
 472     /* we also test computed gotos (GCC extension) */
 473     for(i=0;i<3;i++) {
 474         goto *label_table[i];
 475     label1:
 476         printf("label1\n");
 477         goto next;
 478     label2:
 479         printf("label2\n");
 480         goto next;
 481     label3:
 482         printf("label3\n");
 483     next: ;
 484     }
 485 }
 486
 487 enum {
 488     E0,
 489     E1 = 2,
 490     E2 = 4,
 491     E3,
 492     E4,
 493 };
 494
 495 enum test {
 496     E5 = 1000,
 497 };
 498
 499 void enum_test()
 500 {
 501     enum test b1;
 502     printf("enum:\n%d %d %d %d %d %d\n",
 503            E0, E1, E2, E3, E4, E5);
 504     b1 = 1;
 505     printf("b1=%d\n", b1);
 506 }
 507
 508 typedef int *my_ptr;
 509
 510 typedef int mytype1;
 511 typedef int mytype2;
 512
 513 void typedef_test()
 514 {
 515     my_ptr a;
 516     mytype1 mytype2;
 517     int b;
 518
 519     a = &b;
 520     *a = 1234;
 521     printf("typedef:\n");
 522     printf("a=%d\n", *a);
 523     mytype2 = 2;
 524     printf("mytype2=%d\n", mytype2);
 525 }
 526
 527 void forward_test()
 528 {
 529     printf("forward:\n");
 530     forward_ref();
 531     forward_ref();
 532 }
 533
 534
 535 void forward_ref(void)
 536 {
 537     printf("forward ok\n");
 538 }
 539
 540 typedef struct struct1 {
 541     int f1;
 542     int f2, f3;
 543     union union1 {
 544         int v1;
 545         int v2;
 546     } u;
 547     char str[3];
 548 } struct1;
 549
 550 struct struct2 {
 551     int a;
 552     char b;
 553 };
 554
 555 union union2 {
 556     int w1;
 557     int w2;
 558 };
 559
 560 struct struct1 st1, st2;
 561
 562 int main(int argc, char **argv)
 563 {
 564     string_test();
 565     expr_test();
 566     macro_test();
 567     recursive_macro_test();
 568     scope_test();
 569     forward_test();
 570     funcptr_test();
 571     loop_test();
 572     switch_test();
 573     goto_test();
 574     enum_test();
 575     typedef_test();
 576     struct_test();
 577     array_test();
 578     expr_ptr_test();
 579     bool_test();
 580     expr2_test();
 581     constant_expr_test();
 582     expr_cmp_test();
 583     char_short_test();
 584     init_test();
 585     compound_literal_test();
 586     kr_test();
 587     struct_assign_test();
 588     cast_test();
 589     bitfield_test();
 590     c99_bool_test();
 591     float_test();
 592     longlong_test();
 593     manyarg_test();
 594     stdarg_test();
 595     whitespace_test();
 596     relocation_test();
 597     old_style_function();
 598     alloca_test();
 599     c99_vla_test(5, 2);
 600     sizeof_test();
 601     typeof_test();
 602     statement_expr_test();
 603     local_label_test();
 604     asm_test();
 605     builtin_test();
 606 #ifndef _WIN32
 607     weak_test();
 608 #endif
 609     global_data_test();
 610     cmp_comparison_test();
 611     math_cmp_test();
 612     callsave_test();
 613     builtin_frame_address_test();
 614     return 0;
 615 }
 616
 617 int tab[3];
 618 int tab2[3][2];
 619
 620 int g;
 621
 622 void f1(g)
 623 {
 624     printf("g1=%d\n", g);
 625 }
 626
 627 void scope_test()
 628 {
 629     printf("scope:\n");
 630     g = 2;
 631     f1(1);
 632     printf("g2=%d\n", g);
 633     {
 634         int g;
 635         g = 3;
 636         printf("g3=%d\n", g);
 637         {
 638             int g;
 639             g = 4;
 640             printf("g4=%d\n", g);
 641         }
 642     }
 643     printf("g5=%d\n", g);
 644 }
 645
 646 void array_test()
 647 {
 648     int i, j, a[4];
 649
 650     printf("array:\n");
 651     printf("sizeof(a) = %d\n", sizeof(a));
 652     printf("sizeof(\"a\") = %d\n", sizeof("a"));
 653 #ifdef C99_MACROS
 654     printf("sizeof(__func__) = %d\n", sizeof(__func__));
 655 #endif
 656     printf("sizeof tab %d\n", sizeof(tab));
 657     printf("sizeof tab2 %d\n", sizeof tab2);
 658     tab[0] = 1;
 659     tab[1] = 2;
 660     tab[2] = 3;
 661     printf("%d %d %d\n", tab[0], tab[1], tab[2]);
 662     for(i=0;i<3;i++)
 663         for(j=0;j<2;j++)
 664             tab2[i][j] = 10 * i + j;
 665     for(i=0;i<3*2;i++) {
 666         printf(" %3d", ((int *)tab2)[i]);
 667     }
 668     printf("\n");
 669     printf("sizeof(size_t)=%d\n", sizeof(size_t));
 670     printf("sizeof(ptrdiff_t)=%d\n", sizeof(ptrdiff_t));
 671 }
 672
 673 void expr_test()
 674 {
 675     int a, b;
 676     a = 0;
 677     printf("%d\n", a += 1);
 678     printf("%d\n", a -= 2);
 679     printf("%d\n", a *= 31232132);
 680     printf("%d\n", a /= 4);
 681     printf("%d\n", a %= 20);
 682     printf("%d\n", a &= 6);
 683     printf("%d\n", a ^= 7);
 684     printf("%d\n", a |= 8);
 685     printf("%d\n", a >>= 3);
 686     printf("%d\n", a <<= 4);
 687
 688     a = 22321;
 689     b = -22321;
 690     printf("%d\n", a + 1);
 691     printf("%d\n", a - 2);
 692     printf("%d\n", a * 312);
 693     printf("%d\n", a / 4);
 694     printf("%d\n", b / 4);
 695     printf("%d\n", (unsigned)b / 4);
 696     printf("%d\n", a % 20);
 697     printf("%d\n", b % 20);
 698     printf("%d\n", (unsigned)b % 20);
 699     printf("%d\n", a & 6);
 700     printf("%d\n", a ^ 7);
 701     printf("%d\n", a | 8);
 702     printf("%d\n", a >> 3);
 703     printf("%d\n", b >> 3);
 704     printf("%d\n", (unsigned)b >> 3);
 705     printf("%d\n", a << 4);
 706     printf("%d\n", ~a);
 707     printf("%d\n", -a);
 708     printf("%d\n", +a);
 709
 710     printf("%d\n", 12 + 1);
 711     printf("%d\n", 12 - 2);
 712     printf("%d\n", 12 * 312);
 713     printf("%d\n", 12 / 4);
 714     printf("%d\n", 12 % 20);
 715     printf("%d\n", 12 & 6);
 716     printf("%d\n", 12 ^ 7);
 717     printf("%d\n", 12 | 8);
 718     printf("%d\n", 12 >> 2);
 719     printf("%d\n", 12 << 4);
 720     printf("%d\n", ~12);
 721     printf("%d\n", -12);
 722     printf("%d\n", +12);
 723     printf("%d %d %d %d\n",
 724            isid('a'),
 725            isid('g'),
 726            isid('T'),
 727            isid('('));
 728 }
 729
 730 int isid(int c)
 731 {
 732     return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
 733 }
 734
 735 /**********************/
 736
 737 int vstack[10], *vstack_ptr;
 738
 739 void vpush(int vt, int vc)
 740 {
 741     *vstack_ptr++ = vt;
 742     *vstack_ptr++ = vc;
 743 }
 744
 745 void vpop(int *ft, int *fc)
 746 {
 747     *fc = *--vstack_ptr;
 748     *ft = *--vstack_ptr;
 749 }
 750
 751 void expr2_test()
 752 {
 753     int a, b;
 754
 755     printf("expr2:\n");
 756     vstack_ptr = vstack;
 757     vpush(1432432, 2);
 758     vstack_ptr[-2] &= ~0xffffff80;
 759     vpop(&a, &b);
 760     printf("res= %d %d\n", a, b);
 761 }
 762
 763 void constant_expr_test()
 764 {
 765     int a;
 766     printf("constant_expr:\n");
 767     a = 3;
 768     printf("%d\n", a * 16);
 769     printf("%d\n", a * 1);
 770     printf("%d\n", a + 0);
 771 }
 772
 773 int tab4[10];
 774
 775 void expr_ptr_test()
 776 {
 777     int *p, *q;
 778     int i = -1;
 779
 780     printf("expr_ptr:\n");
 781     p = tab4;
 782     q = tab4 + 10;
 783     printf("diff=%d\n", q - p);
 784     p++;
 785     printf("inc=%d\n", p - tab4);
 786     p--;
 787     printf("dec=%d\n", p - tab4);
 788     ++p;
 789     printf("inc=%d\n", p - tab4);
 790     --p;
 791     printf("dec=%d\n", p - tab4);
 792     printf("add=%d\n", p + 3 - tab4);
 793     printf("add=%d\n", 3 + p - tab4);
 794
 795     /* check if 64bit support is ok */
 796     q = p = 0;
 797     q += i;
 798     printf("%p %p %ld\n", q, p, p-q);
 799     printf("%d %d %d %d %d %d\n",
 800            p == q, p != q, p < q, p <= q, p >= q, p > q);
 801     i = 0xf0000000;
 802     p += i;
 803     printf("%p %p %ld\n", q, p, p-q);
 804     printf("%d %d %d %d %d %d\n",
 805            p == q, p != q, p < q, p <= q, p >= q, p > q);
 806     p = (int *)((char *)p + 0xf0000000);
 807     printf("%p %p %ld\n", q, p, p-q);
 808     printf("%d %d %d %d %d %d\n",
 809            p == q, p != q, p < q, p <= q, p >= q, p > q);
 810     p += 0xf0000000;
 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     {
 815         struct size12 {
 816             int i, j, k;
 817         };
 818         struct size12 s[2], *sp = s;
 819         int i, j;
 820         sp->i = 42;
 821         sp++;
 822         j = -1;
 823         printf("%d\n", sp[j].i);
 824     }
 825 }
 826
 827 void expr_cmp_test()
 828 {
 829     int a, b;
 830     printf("constant_expr:\n");
 831     a = -1;
 832     b = 1;
 833     printf("%d\n", a == a);
 834     printf("%d\n", a != a);
 835
 836     printf("%d\n", a < b);
 837     printf("%d\n", a <= b);
 838     printf("%d\n", a <= a);
 839     printf("%d\n", b >= a);
 840     printf("%d\n", a >= a);
 841     printf("%d\n", b > a);
 842
 843     printf("%d\n", (unsigned)a < b);
 844     printf("%d\n", (unsigned)a <= b);
 845     printf("%d\n", (unsigned)a <= a);
 846     printf("%d\n", (unsigned)b >= a);
 847     printf("%d\n", (unsigned)a >= a);
 848     printf("%d\n", (unsigned)b > a);
 849 }
 850
 851 struct empty {
 852 };
 853
 854 struct aligntest1 {
 855     char a[10];
 856 };
 857
 858 struct aligntest2 {
 859     int a;
 860     char b[10];
 861 };
 862
 863 struct aligntest3 {
 864     double a, b;
 865 };
 866
 867 struct aligntest4 {
 868     double a[0];
 869 };
 870
 871 void struct_test()
 872 {
 873     struct1 *s;
 874     union union2 u;
 875
 876     printf("struct:\n");
 877     printf("sizes: %d %d %d %d\n",
 878            sizeof(struct struct1),
 879            sizeof(struct struct2),
 880            sizeof(union union1),
 881            sizeof(union union2));
 882     st1.f1 = 1;
 883     st1.f2 = 2;
 884     st1.f3 = 3;
 885     printf("st1: %d %d %d\n",
 886            st1.f1, st1.f2, st1.f3);
 887     st1.u.v1 = 1;
 888     st1.u.v2 = 2;
 889     printf("union1: %d\n", st1.u.v1);
 890     u.w1 = 1;
 891     u.w2 = 2;
 892     printf("union2: %d\n", u.w1);
 893     s = &st2;
 894     s->f1 = 3;
 895     s->f2 = 2;
 896     s->f3 = 1;
 897     printf("st2: %d %d %d\n",
 898            s->f1, s->f2, s->f3);
 899     printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
 900
 901     /* align / size tests */
 902     printf("aligntest1 sizeof=%d alignof=%d\n",
 903            sizeof(struct aligntest1), __alignof__(struct aligntest1));
 904     printf("aligntest2 sizeof=%d alignof=%d\n",
 905            sizeof(struct aligntest2), __alignof__(struct aligntest2));
 906     printf("aligntest3 sizeof=%d alignof=%d\n",
 907            sizeof(struct aligntest3), __alignof__(struct aligntest3));
 908     printf("aligntest4 sizeof=%d alignof=%d\n",
 909            sizeof(struct aligntest4), __alignof__(struct aligntest4));
 910
 911     /* empty structures (GCC extension) */
 912     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
 913     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
 914 }
 915
 916 /* XXX: depend on endianness */
 917 void char_short_test()
 918 {
 919     int var1, var2;
 920
 921     printf("char_short:\n");
 922
 923     var1 = 0x01020304;
 924     var2 = 0xfffefdfc;
 925     printf("s8=%d %d\n",
 926            *(char *)&var1, *(char *)&var2);
 927     printf("u8=%d %d\n",
 928            *(unsigned char *)&var1, *(unsigned char *)&var2);
 929     printf("s16=%d %d\n",
 930            *(short *)&var1, *(short *)&var2);
 931     printf("u16=%d %d\n",
 932            *(unsigned short *)&var1, *(unsigned short *)&var2);
 933     printf("s32=%d %d\n",
 934            *(int *)&var1, *(int *)&var2);
 935     printf("u32=%d %d\n",
 936            *(unsigned int *)&var1, *(unsigned int *)&var2);
 937     *(char *)&var1 = 0x08;
 938     printf("var1=%x\n", var1);
 939     *(short *)&var1 = 0x0809;
 940     printf("var1=%x\n", var1);
 941     *(int *)&var1 = 0x08090a0b;
 942     printf("var1=%x\n", var1);
 943 }
 944
 945 /******************/
 946
 947 typedef struct Sym {
 948     int v;
 949     int t;
 950     int c;
 951     struct Sym *next;
 952     struct Sym *prev;
 953 } Sym;
 954
 955 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 956 #define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 957
 958 static int toupper1(int a)
 959 {
 960     return TOUPPER(a);
 961 }
 962
 963 void bool_test()
 964 {
 965     int *s, a, b, t, f, i;
 966
 967     a = 0;
 968     s = (void*)0;
 969     printf("!s=%d\n", !s);
 970
 971     if (!s || !s[0])
 972         a = 1;
 973     printf("a=%d\n", a);
 974
 975     printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
 976     printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
 977     printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
 978 #if 1 && 1
 979     printf("a1\n");
 980 #endif
 981 #if 1 || 0
 982     printf("a2\n");
 983 #endif
 984 #if 1 ? 0 : 1
 985     printf("a3\n");
 986 #endif
 987 #if 0 ? 0 : 1
 988     printf("a4\n");
 989 #endif
 990
 991     a = 4;
 992     printf("b=%d\n", a + (0 ? 1 : a / 2));
 993
 994     /* test register spilling */
 995     a = 10;
 996     b = 10;
 997     a = (a + b) * ((a < b) ?
 998                    ((b - a) * (a - b)): a + b);
 999     printf("a=%d\n", a);
1000
1001     /* test complex || or && expressions */
1002     t = 1;
1003     f = 0;
1004     a = 32;
1005     printf("exp=%d\n", f == (32 <= a && a <= 3));
1006     printf("r=%d\n", (t || f) + (t && f));
1007
1008     /* test ? : cast */
1009     {
1010         int aspect_on;
1011         int aspect_native = 65536;
1012         double bfu_aspect = 1.0;
1013         int aspect;
1014         for(aspect_on = 0; aspect_on < 2; aspect_on++) {
1015             aspect=aspect_on?(aspect_native*bfu_aspect+0.5):65535UL;
1016             printf("aspect=%d\n", aspect);
1017         }
1018     }
1019
1020     /* test ? : GCC extension */
1021     {
1022         static int v1 = 34 ? : -1; /* constant case */
1023         static int v2 = 0 ? : -1; /* constant case */
1024         int a = 30;
1025
1026         printf("%d %d\n", v1, v2);
1027         printf("%d %d\n", a - 30 ? : a * 2, a + 1 ? : a * 2);
1028     }
1029
1030     /* again complex expression */
1031     for(i=0;i<256;i++) {
1032         if (toupper1 (i) != TOUPPER (i))
1033             printf("error %d\n", i);
1034     }
1035 }
1036
1037 /* GCC accepts that */
1038 static int tab_reinit[];
1039 static int tab_reinit[10];
1040
1041 //int cinit1; /* a global variable can be defined several times without error ! */
1042 int cinit1;
1043 int cinit1;
1044 int cinit1 = 0;
1045 int *cinit2 = (int []){3, 2, 1};
1046
1047 void compound_literal_test(void)
1048 {
1049     int *p, i;
1050     char *q, *q3;
1051
1052     printf("compound_test:\n");
1053
1054     p = (int []){1, 2, 3};
1055     for(i=0;i<3;i++)
1056         printf(" %d", p[i]);
1057     printf("\n");
1058
1059     for(i=0;i<3;i++)
1060         printf("%d", cinit2[i]);
1061     printf("\n");
1062
1063     q = "tralala1";
1064     printf("q1=%s\n", q);
1065
1066     q = (char *){ "tralala2" };
1067     printf("q2=%s\n", q);
1068
1069     q3 = (char *){ q };
1070     printf("q3=%s\n", q3);
1071
1072     q = (char []){ "tralala3" };
1073     printf("q4=%s\n", q);
1074
1075 #ifdef ALL_ISOC99
1076     p = (int []){1, 2, cinit1 + 3};
1077     for(i=0;i<3;i++)
1078         printf(" %d", p[i]);
1079     printf("\n");
1080
1081     for(i=0;i<3;i++) {
1082         p = (int []){1, 2, 4 + i};
1083         printf("%d %d %d\n",
1084                p[0],
1085                p[1],
1086                p[2]);
1087     }
1088 #endif
1089 }
1090
1091 /* K & R protos */
1092
1093 kr_func1(a, b)
1094 {
1095     return a + b;
1096 }
1097
1098 int kr_func2(a, b)
1099 {
1100     return a + b;
1101 }
1102
1103 kr_test()
1104 {
1105     printf("kr_test:\n");
1106     printf("func1=%d\n", kr_func1(3, 4));
1107     printf("func2=%d\n", kr_func2(3, 4));
1108     return 0;
1109 }
1110
1111 void num(int n)
1112 {
1113     char *tab, *p;
1114     tab = (char*)malloc(20);
1115     p = tab;
1116     while (1) {
1117         *p = 48 + (n % 10);
1118         p++;
1119         n = n / 10;
1120         if (n == 0)
1121             break;
1122     }
1123     while (p != tab) {
1124         p--;
1125         printf("%c", *p);
1126     }
1127     printf("\n");
1128     free(tab);
1129 }
1130
1131 /* structure assignment tests */
1132 struct structa1 {
1133     int f1;
1134     char f2;
1135 };
1136
1137 struct structa1 ssta1;
1138
1139 void struct_assign_test1(struct structa1 s1, int t, float f)
1140 {
1141     printf("%d %d %d %f\n", s1.f1, s1.f2, t, f);
1142 }
1143
1144 struct structa1 struct_assign_test2(struct structa1 s1, int t)
1145 {
1146     s1.f1 += t;
1147     s1.f2 -= t;
1148     return s1;
1149 }
1150
1151 void struct_assign_test(void)
1152 {
1153     struct S {
1154       struct structa1 lsta1, lsta2;
1155       int i;
1156     } s, *ps;
1157
1158     ps = &s;
1159     ps->i = 4;
1160 #if 0
1161     printf("struct_assign_test:\n");
1162
1163     s.lsta1.f1 = 1;
1164     s.lsta1.f2 = 2;
1165     printf("%d %d\n", s.lsta1.f1, s.lsta1.f2);
1166     s.lsta2 = s.lsta1;
1167     printf("%d %d\n", s.lsta2.f1, s.lsta2.f2);
1168 #else
1169     s.lsta2.f1 = 1;
1170     s.lsta2.f2 = 2;
1171 #endif
1172     struct_assign_test1(ps->lsta2, 3, 4.5);
1173
1174     printf("before call: %d %d\n", s.lsta2.f1, s.lsta2.f2);
1175     ps->lsta2 = struct_assign_test2(ps->lsta2, ps->i);
1176     printf("after call: %d %d\n", ps->lsta2.f1, ps->lsta2.f2);
1177
1178     static struct {
1179         void (*elem)();
1180     } t[] = {
1181         /* XXX: we should allow this even without braces */
1182         { struct_assign_test }
1183     };
1184     printf("%d\n", struct_assign_test == t[0].elem);
1185 }
1186
1187 /* casts to short/char */
1188
1189 void cast1(char a, short b, unsigned char c, unsigned short d)
1190 {
1191     printf("%d %d %d %d\n", a, b, c, d);
1192 }
1193
1194 char bcast;
1195 short scast;
1196
1197 void cast_test()
1198 {
1199     int a;
1200     char c;
1201     char tab[10];
1202     unsigned b,d;
1203     short s;
1204     char *p = NULL;
1205     p -= 0x700000000042;
1206
1207     printf("cast_test:\n");
1208     a = 0xfffff;
1209     cast1(a, a, a, a);
1210     a = 0xffffe;
1211     printf("%d %d %d %d\n",
1212            (char)(a + 1),
1213            (short)(a + 1),
1214            (unsigned char)(a + 1),
1215            (unsigned short)(a + 1));
1216     printf("%d %d %d %d\n",
1217            (char)0xfffff,
1218            (short)0xfffff,
1219            (unsigned char)0xfffff,
1220            (unsigned short)0xfffff);
1221
1222     a = (bcast = 128) + 1;
1223     printf("%d\n", a);
1224     a = (scast = 65536) + 1;
1225     printf("%d\n", a);
1226
1227     printf("sizeof(c) = %d, sizeof((int)c) = %d\n", sizeof(c), sizeof((int)c));
1228
1229     /* test cast from unsigned to signed short to int */
1230     b = 0xf000;
1231     d = (short)b;
1232     printf("((unsigned)(short)0x%08x) = 0x%08x\n", b, d);
1233     b = 0xf0f0;
1234     d = (char)b;
1235     printf("((unsigned)(char)0x%08x) = 0x%08x\n", b, d);
1236
1237     /* test implicit int casting for array accesses */
1238     c = 0;
1239     tab[1] = 2;
1240     tab[c] = 1;
1241     printf("%d %d\n", tab[0], tab[1]);
1242
1243     /* test implicit casting on some operators */
1244     printf("sizeof(+(char)'a') = %d\n", sizeof(+(char)'a'));
1245     printf("sizeof(-(char)'a') = %d\n", sizeof(-(char)'a'));
1246     printf("sizeof(~(char)'a') = %d\n", sizeof(-(char)'a'));
1247
1248     /* from pointer to integer types */
1249     printf("%d %d %ld %ld %lld %lld\n",
1250            (int)p, (unsigned int)p,
1251            (long)p, (unsigned long)p,
1252            (long long)p, (unsigned long long)p);
1253
1254     /* from integers to pointers */
1255     printf("%p %p %p %p\n",
1256            (void *)a, (void *)b, (void *)c, (void *)d);
1257 }
1258
1259 /* initializers tests */
1260 struct structinit1 {
1261     int f1;
1262     char f2;
1263     short f3;
1264     int farray[3];
1265 };
1266
1267 int sinit1 = 2;
1268 int sinit2 = { 3 };
1269 int sinit3[3] = { 1, 2, {{3}}, };
1270 int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1271 int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
1272 int sinit6[] = { 1, 2, 3 };
1273 int sinit7[] = { [2] = 3, [0] = 1, 2 };
1274 char sinit8[] = "hello" "trala";
1275
1276 struct structinit1 sinit9 = { 1, 2, 3 };
1277 struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
1278 struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1,
1279 #ifdef ALL_ISOC99
1280                                .farray[0] = 10,
1281                                .farray[1] = 11,
1282                                .farray[2] = 12,
1283 #endif
1284 };
1285
1286 char *sinit12 = "hello world";
1287 char *sinit13[] = {
1288     "test1",
1289     "test2",
1290     "test3",
1291 };
1292 char sinit14[10] = { "abc" };
1293 int sinit15[3] = { sizeof(sinit15), 1, 2 };
1294
1295 struct { int a[3], b; } sinit16[] = { { 1 }, 2 };
1296
1297 struct bar {
1298         char *s;
1299         int len;
1300 } sinit17[] = {
1301         "a1", 4,
1302         "a2", 1
1303 };
1304
1305 int sinit18[10] = {
1306     [2 ... 5] = 20,
1307     2,
1308     [8] = 10,
1309 };
1310
1311 struct complexinit0 {
1312     int a;
1313     int b;
1314 };
1315
1316 struct complexinit {
1317     int a;
1318     const struct complexinit0 *b;
1319 };
1320
1321 const static struct complexinit cix[] = {
1322     [0] = {
1323         .a = 2000,
1324         .b = (const struct complexinit0[]) {
1325                 { 2001, 2002 },
1326                 { 2003, 2003 },
1327                 {}
1328         }
1329     }
1330 };
1331
1332 struct complexinit2 {
1333         int a;
1334         int b[];
1335 };
1336
1337 struct complexinit2 cix20;
1338
1339 struct complexinit2 cix21 = {
1340         .a = 3000,
1341         .b = { 3001, 3002, 3003 }
1342 };
1343
1344 struct complexinit2 cix22 = {
1345         .a = 4000,
1346         .b = { 4001, 4002, 4003, 4004, 4005, 4006 }
1347 };
1348
1349 void init_test(void)
1350 {
1351     int linit1 = 2;
1352     int linit2 = { 3 };
1353     int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
1354     int linit6[] = { 1, 2, 3 };
1355     int i, j;
1356     char linit8[] = "hello" "trala";
1357     int linit12[10] = { 1, 2 };
1358     int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
1359     char linit14[10] = "abc";
1360     int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
1361     struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
1362     int linit17 = sizeof(linit17);
1363
1364     printf("init_test:\n");
1365
1366     printf("sinit1=%d\n", sinit1);
1367     printf("sinit2=%d\n", sinit2);
1368     printf("sinit3=%d %d %d %d\n",
1369            sizeof(sinit3),
1370            sinit3[0],
1371            sinit3[1],
1372            sinit3[2]
1373            );
1374     printf("sinit6=%d\n", sizeof(sinit6));
1375     printf("sinit7=%d %d %d %d\n",
1376            sizeof(sinit7),
1377            sinit7[0],
1378            sinit7[1],
1379            sinit7[2]
1380            );
1381     printf("sinit8=%s\n", sinit8);
1382     printf("sinit9=%d %d %d\n",
1383            sinit9.f1,
1384            sinit9.f2,
1385            sinit9.f3
1386            );
1387     printf("sinit10=%d %d %d\n",
1388            sinit10.f1,
1389            sinit10.f2,
1390            sinit10.f3
1391            );
1392     printf("sinit11=%d %d %d %d %d %d\n",
1393            sinit11.f1,
1394            sinit11.f2,
1395            sinit11.f3,
1396            sinit11.farray[0],
1397            sinit11.farray[1],
1398            sinit11.farray[2]
1399            );
1400
1401     for(i=0;i<3;i++)
1402         for(j=0;j<2;j++)
1403             printf("[%d][%d] = %d %d %d\n",
1404                    i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
1405     printf("linit1=%d\n", linit1);
1406     printf("linit2=%d\n", linit2);
1407     printf("linit6=%d\n", sizeof(linit6));
1408     printf("linit8=%d %s\n", sizeof(linit8), linit8);
1409
1410     printf("sinit12=%s\n", sinit12);
1411     printf("sinit13=%d %s %s %s\n",
1412            sizeof(sinit13),
1413            sinit13[0],
1414            sinit13[1],
1415            sinit13[2]);
1416     printf("sinit14=%s\n", sinit14);
1417
1418     for(i=0;i<10;i++) printf(" %d", linit12[i]);
1419     printf("\n");
1420     for(i=0;i<10;i++) printf(" %d", linit13[i]);
1421     printf("\n");
1422     for(i=0;i<10;i++) printf(" %d", linit14[i]);
1423     printf("\n");
1424     for(i=0;i<10;i++) printf(" %d", linit15[i]);
1425     printf("\n");
1426     printf("%d %d %d %d\n",
1427            linit16.a1,
1428            linit16.a2,
1429            linit16.a3,
1430            linit16.a4);
1431     /* test that initialisation is done after variable declare */
1432     printf("linit17=%d\n", linit17);
1433     printf("sinit15=%d\n", sinit15[0]);
1434     printf("sinit16=%d %d\n", sinit16[0].a[0], sinit16[1].a[0]);
1435     printf("sinit17=%s %d %s %d\n",
1436            sinit17[0].s, sinit17[0].len,
1437            sinit17[1].s, sinit17[1].len);
1438     for(i=0;i<10;i++)
1439         printf("%x ", sinit18[i]);
1440     printf("\n");
1441     /* complex init check */
1442     printf("cix: %d %d %d %d %d %d %d\n",
1443         cix[0].a,
1444         cix[0].b[0].a, cix[0].b[0].b,
1445         cix[0].b[1].a, cix[0].b[1].b,
1446         cix[0].b[2].a, cix[0].b[2].b);
1447     printf("cix2: %d %d\n", cix21.b[2], cix22.b[5]);
1448     printf("sizeof cix20 %d, cix21 %d, sizeof cix22 %d\n", sizeof cix20, sizeof cix21, sizeof cix22);
1449 }
1450
1451
1452 void switch_test()
1453 {
1454     int i;
1455
1456     for(i=0;i<15;i++) {
1457         switch(i) {
1458         case 0:
1459         case 1:
1460             printf("a");
1461             break;
1462         default:
1463             printf("%d", i);
1464             break;
1465         case 8 ... 12:
1466             printf("c");
1467             break;
1468         case 3:
1469             printf("b");
1470             break;
1471         }
1472     }
1473     printf("\n");
1474 }
1475
1476 /* ISOC99 _Bool type */
1477 void c99_bool_test(void)
1478 {
1479 #ifdef BOOL_ISOC99
1480     int a;
1481     _Bool b;
1482
1483     printf("bool_test:\n");
1484     printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
1485     a = 3;
1486     printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
1487     b = 3;
1488     printf("b = %d\n", b);
1489     b++;
1490     printf("b = %d\n", b);
1491 #endif
1492 }
1493
1494 void bitfield_test(void)
1495 {
1496     int a;
1497     short sa;
1498     unsigned char ca;
1499     struct sbf1 {
1500         int f1 : 3;
1501         int : 2;
1502         int f2 : 1;
1503         int : 0;
1504         int f3 : 5;
1505         int f4 : 7;
1506         unsigned int f5 : 7;
1507     } st1;
1508     printf("bitfield_test:");
1509     printf("sizeof(st1) = %d\n", sizeof(st1));
1510
1511     st1.f1 = 3;
1512     st1.f2 = 1;
1513     st1.f3 = 15;
1514     a = 120;
1515     st1.f4 = a;
1516     st1.f5 = a;
1517     st1.f5++;
1518     printf("%d %d %d %d %d\n",
1519            st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
1520     sa = st1.f5;
1521     ca = st1.f5;
1522     printf("%d %d\n", sa, ca);
1523
1524     st1.f1 = 7;
1525     if (st1.f1 == -1)
1526         printf("st1.f1 == -1\n");
1527     else
1528         printf("st1.f1 != -1\n");
1529     if (st1.f2 == -1)
1530         printf("st1.f2 == -1\n");
1531     else
1532         printf("st1.f2 != -1\n");
1533
1534     /* bit sizes below must be bigger than 32 since GCC doesn't allow
1535        long-long bitfields whose size is not bigger than int */
1536     struct sbf2 {
1537         long long f1 : 45;
1538         long long : 2;
1539         long long f2 : 35;
1540         unsigned long long f3 : 38;
1541     } st2;
1542     st2.f1 = 0x123456789ULL;
1543     a = 120;
1544     st2.f2 = (long long)a << 25;
1545     st2.f3 = a;
1546     st2.f2++;
1547     printf("%lld %lld %lld\n", st2.f1, st2.f2, st2.f3);
1548 }
1549
1550 #ifdef __x86_64__
1551 #define FLOAT_FMT "%f\n"
1552 #else
1553 /* x86's float isn't compatible with GCC */
1554 #define FLOAT_FMT "%.5f\n"
1555 #endif
1556
1557 /* declare strto* functions as they are C99 */
1558 double strtod(const char *nptr, char **endptr);
1559
1560 #if defined(_WIN32)
1561 float strtof(const char *nptr, char **endptr) {return (float)strtod(nptr, endptr);}
1562 LONG_DOUBLE strtold(const char *nptr, char **endptr) {return (LONG_DOUBLE)strtod(nptr, endptr);}
1563 #else
1564 float strtof(const char *nptr, char **endptr);
1565 LONG_DOUBLE strtold(const char *nptr, char **endptr);
1566 #endif
1567
1568 #define FTEST(prefix, typename, type, fmt)\
1569 void prefix ## cmp(type a, type b)\
1570 {\
1571     printf("%d %d %d %d %d %d\n",\
1572            a == b,\
1573            a != b,\
1574            a < b,\
1575            a > b,\
1576            a >= b,\
1577            a <= b);\
1578     printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
1579            a,\
1580            b,\
1581            a + b,\
1582            a - b,\
1583            a * b,\
1584            a / b,\
1585            -a);\
1586     printf(fmt "\n", ++a);\
1587     printf(fmt "\n", a++);\
1588     printf(fmt "\n", a);\
1589     b = 0;\
1590     printf("%d %d\n", !a, !b);\
1591 }\
1592 void prefix ## fcast(type a)\
1593 {\
1594     float fa;\
1595     double da;\
1596     LONG_DOUBLE la;\
1597     int ia;\
1598     unsigned int ua;\
1599     type b;\
1600     fa = a;\
1601     da = a;\
1602     la = a;\
1603     printf("ftof: %f %f %Lf\n", fa, da, la);\
1604     ia = (int)a;\
1605     ua = (unsigned int)a;\
1606     printf("ftoi: %d %u\n", ia, ua);\
1607     ia = -1234;\
1608     ua = 0x81234500;\
1609     b = ia;\
1610     printf("itof: " fmt "\n", b);\
1611     b = ua;\
1612     printf("utof: " fmt "\n", b);\
1613 }\
1614 \
1615 float prefix ## retf(type a) { return a; }\
1616 double prefix ## retd(type a) { return a; }\
1617 LONG_DOUBLE prefix ## retld(type a) { return a; }\
1618 \
1619 void prefix ## call(void)\
1620 {\
1621     printf("float: " FLOAT_FMT, prefix ## retf(42.123456789));\
1622     printf("double: %f\n", prefix ## retd(42.123456789));\
1623     printf("long double: %Lf\n", prefix ## retld(42.123456789));\
1624     printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
1625 }\
1626 \
1627 void prefix ## test(void)\
1628 {\
1629     printf("testing '%s'\n", #typename);\
1630     prefix ## cmp(1, 2.5);\
1631     prefix ## cmp(2, 1.5);\
1632     prefix ## cmp(1, 1);\
1633     prefix ## fcast(234.6);\
1634     prefix ## fcast(-2334.6);\
1635     prefix ## call();\
1636 }
1637
1638 FTEST(f, float, float, "%f")
1639 FTEST(d, double, double, "%f")
1640 FTEST(ld, long double, LONG_DOUBLE, "%Lf")
1641
1642 double ftab1[3] = { 1.2, 3.4, -5.6 };
1643
1644
1645 void float_test(void)
1646 {
1647     float fa, fb;
1648     double da, db;
1649     int a;
1650     unsigned int b;
1651
1652     printf("float_test:\n");
1653     printf("sizeof(float) = %d\n", sizeof(float));
1654     printf("sizeof(double) = %d\n", sizeof(double));
1655     printf("sizeof(long double) = %d\n", sizeof(LONG_DOUBLE));
1656     ftest();
1657     dtest();
1658     ldtest();
1659     printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
1660     printf("%f %f %f\n", 2.12, .5, 2.3e10);
1661     //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
1662     da = 123;
1663     printf("da=%f\n", da);
1664     fa = 123;
1665     printf("fa=%f\n", fa);
1666     a = 4000000000;
1667     da = a;
1668     printf("da = %f\n", da);
1669     b = 4000000000;
1670     db = b;
1671     printf("db = %f\n", db);
1672 }
1673
1674 int fib(int n)
1675 {
1676     if (n <= 2)
1677         return 1;
1678     else
1679         return fib(n-1) + fib(n-2);
1680 }
1681
1682 void funcptr_test()
1683 {
1684     void (*func)(int);
1685     int a;
1686     struct {
1687         int dummy;
1688         void (*func)(int);
1689     } st1;
1690
1691     printf("funcptr:\n");
1692     func = &num;
1693     (*func)(12345);
1694     func = num;
1695     a = 1;
1696     a = 1;
1697     func(12345);
1698     /* more complicated pointer computation */
1699     st1.func = num;
1700     st1.func(12346);
1701     printf("sizeof1 = %d\n", sizeof(funcptr_test));
1702     printf("sizeof2 = %d\n", sizeof funcptr_test);
1703     printf("sizeof3 = %d\n", sizeof(&funcptr_test));
1704     printf("sizeof4 = %d\n", sizeof &funcptr_test);
1705 }
1706
1707 void lloptest(long long a, long long b)
1708 {
1709     unsigned long long ua, ub;
1710
1711     ua = a;
1712     ub = b;
1713     /* arith */
1714     printf("arith: %Ld %Ld %Ld\n",
1715            a + b,
1716            a - b,
1717            a * b);
1718
1719     if (b != 0) {
1720         printf("arith1: %Ld %Ld\n",
1721            a / b,
1722            a % b);
1723     }
1724
1725     /* binary */
1726     printf("bin: %Ld %Ld %Ld\n",
1727            a & b,
1728            a | b,
1729            a ^ b);
1730
1731     /* tests */
1732     printf("test: %d %d %d %d %d %d\n",
1733            a == b,
1734            a != b,
1735            a < b,
1736            a > b,
1737            a >= b,
1738            a <= b);
1739
1740     printf("utest: %d %d %d %d %d %d\n",
1741            ua == ub,
1742            ua != ub,
1743            ua < ub,
1744            ua > ub,
1745            ua >= ub,
1746            ua <= ub);
1747
1748     /* arith2 */
1749     a++;
1750     b++;
1751     printf("arith2: %Ld %Ld\n", a, b);
1752     printf("arith2: %Ld %Ld\n", a++, b++);
1753     printf("arith2: %Ld %Ld\n", --a, --b);
1754     printf("arith2: %Ld %Ld\n", a, b);
1755     b = ub = 0;
1756     printf("not: %d %d %d %d\n", !a, !ua, !b, !ub);
1757 }
1758
1759 void llshift(long long a, int b)
1760 {
1761     printf("shift: %Ld %Ld %Ld\n",
1762            (unsigned long long)a >> b,
1763            a >> b,
1764            a << b);
1765     printf("shiftc: %Ld %Ld %Ld\n",
1766            (unsigned long long)a >> 3,
1767            a >> 3,
1768            a << 3);
1769     printf("shiftc: %Ld %Ld %Ld\n",
1770            (unsigned long long)a >> 35,
1771            a >> 35,
1772            a << 35);
1773 }
1774
1775 void llfloat(void)
1776 {
1777     float fa;
1778     double da;
1779     LONG_DOUBLE lda;
1780     long long la, lb, lc;
1781     unsigned long long ula, ulb, ulc;
1782     la = 0x12345678;
1783     ula = 0x72345678;
1784     la = (la << 20) | 0x12345;
1785     ula = ula << 33;
1786     printf("la=%Ld ula=%Lu\n", la, ula);
1787
1788     fa = la;
1789     da = la;
1790     lda = la;
1791     printf("lltof: %f %f %Lf\n", fa, da, lda);
1792
1793     la = fa;
1794     lb = da;
1795     lc = lda;
1796     printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
1797
1798     fa = ula;
1799     da = ula;
1800     lda = ula;
1801     printf("ulltof: %f %f %Lf\n", fa, da, lda);
1802
1803     ula = fa;
1804     ulb = da;
1805     ulc = lda;
1806     printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
1807 }
1808
1809 long long llfunc1(int a)
1810 {
1811     return a * 2;
1812 }
1813
1814 struct S {
1815     int id;
1816     char item;
1817 };
1818
1819 long long int value(struct S *v)
1820 {
1821     return ((long long int)v->item);
1822 }
1823
1824 void longlong_test(void)
1825 {
1826     long long a, b, c;
1827     int ia;
1828     unsigned int ua;
1829     printf("longlong_test:\n");
1830     printf("sizeof(long long) = %d\n", sizeof(long long));
1831     ia = -1;
1832     ua = -2;
1833     a = ia;
1834     b = ua;
1835     printf("%Ld %Ld\n", a, b);
1836     printf("%Ld %Ld %Ld %Lx\n",
1837            (long long)1,
1838            (long long)-2,
1839            1LL,
1840            0x1234567812345679);
1841     a = llfunc1(-3);
1842     printf("%Ld\n", a);
1843
1844     lloptest(1000, 23);
1845     lloptest(0xff, 0x1234);
1846     b = 0x72345678 << 10;
1847     lloptest(-3, b);
1848     llshift(0x123, 5);
1849     llshift(-23, 5);
1850     b = 0x72345678LL << 10;
1851     llshift(b, 47);
1852
1853     llfloat();
1854 #if 1
1855     b = 0x12345678;
1856     a = -1;
1857     c = a + b;
1858     printf("%Lx\n", c);
1859 #endif
1860
1861     /* long long reg spill test */
1862     {
1863           struct S a;
1864
1865           a.item = 3;
1866           printf("%lld\n", value(&a));
1867     }
1868     lloptest(0x80000000, 0);
1869
1870     /* another long long spill test */
1871     {
1872         long long *p, v;
1873         v = 1;
1874         p = &v;
1875         p[0]++;
1876         printf("%lld\n", *p);
1877     }
1878
1879     a = 68719476720LL;
1880     b = 4294967295LL;
1881     printf("%d %d %d %d\n", a > b, a < b, a >= b, a <= b);
1882
1883     printf("%Ld\n", 0x123456789LLU);
1884 }
1885
1886 void manyarg_test(void)
1887 {
1888     LONG_DOUBLE ld = 1234567891234LL;
1889     printf("manyarg_test:\n");
1890     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
1891            1, 2, 3, 4, 5, 6, 7, 8,
1892            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
1893     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1894            "%Ld %Ld %f %f\n",
1895            1, 2, 3, 4, 5, 6, 7, 8,
1896            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1897            1234567891234LL, 987654321986LL,
1898            42.0, 43.0);
1899     printf("%Lf %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1900            "%Ld %Ld %f %f\n",
1901            ld, 1, 2, 3, 4, 5, 6, 7, 8,
1902            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1903            1234567891234LL, 987654321986LL,
1904            42.0, 43.0);
1905     /* XXX: known bug of x86-64 */
1906 #ifndef __x86_64__
1907     printf("%d %d %d %d %d %d %d %d %Lf\n",
1908            1, 2, 3, 4, 5, 6, 7, 8, ld);
1909     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1910            "%Ld %Ld %f %f %Lf\n",
1911            1, 2, 3, 4, 5, 6, 7, 8,
1912            0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
1913            1234567891234LL, 987654321986LL,
1914            42.0, 43.0, ld);
1915     printf("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
1916            "%Lf %Ld %Ld %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            ld, 1234567891234LL, 987654321986LL,
1920            42.0, 43.0, ld);
1921 #endif
1922 }
1923
1924 void vprintf1(const char *fmt, ...)
1925 {
1926     va_list ap, aq;
1927     const char *p;
1928     int c, i;
1929     double d;
1930     long long ll;
1931     LONG_DOUBLE ld;
1932
1933     va_start(aq, fmt);
1934     va_copy(ap, aq);
1935
1936     p = fmt;
1937     for(;;) {
1938         c = *p;
1939         if (c == '\0')
1940             break;
1941         p++;
1942         if (c == '%') {
1943             c = *p;
1944             switch(c) {
1945             case '\0':
1946                 goto the_end;
1947             case 'd':
1948                 i = va_arg(ap, int);
1949                 printf("%d", i);
1950                 break;
1951             case 'f':
1952                 d = va_arg(ap, double);
1953                 printf("%f", d);
1954                 break;
1955             case 'l':
1956                 ll = va_arg(ap, long long);
1957                 printf("%Ld", ll);
1958                 break;
1959             case 'F':
1960                 ld = va_arg(ap, LONG_DOUBLE);
1961                 printf("%Lf", ld);
1962                 break;
1963             }
1964             p++;
1965         } else {
1966             putchar(c);
1967         }
1968     }
1969  the_end:
1970     va_end(aq);
1971     va_end(ap);
1972 }
1973
1974 struct myspace {
1975     short int profile;
1976 };
1977
1978 void stdarg_for_struct(struct myspace bob, ...)
1979 {
1980     struct myspace george, bill;
1981     va_list ap;
1982     short int validate;
1983
1984     va_start(ap, bob);
1985     bill     = va_arg(ap, struct myspace);
1986     george   = va_arg(ap, struct myspace);
1987     validate = va_arg(ap, int);
1988     printf("stdarg_for_struct: %d %d %d %d\n",
1989            bob.profile, bill.profile, george.profile, validate);
1990     va_end(ap);
1991 }
1992
1993 void stdarg_test(void)
1994 {
1995     LONG_DOUBLE ld = 1234567891234LL;
1996     struct myspace bob;
1997
1998     vprintf1("%d %d %d\n", 1, 2, 3);
1999     vprintf1("%f %d %f\n", 1.0, 2, 3.0);
2000     vprintf1("%l %l %d %f\n", 1234567891234LL, 987654321986LL, 3, 1234.0);
2001     vprintf1("%F %F %F\n", LONG_DOUBLE_LITERAL(1.2), LONG_DOUBLE_LITERAL(2.3), LONG_DOUBLE_LITERAL(3.4));
2002 #ifdef __x86_64__
2003     /* a bug of x86's TCC */
2004     vprintf1("%d %f %l %F %d %f %l %F\n",
2005              1, 1.2, 3L, 4.5L, 6, 7.8, 9L, 0.1L);
2006 #endif
2007     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f\n",
2008              1, 2, 3, 4, 5, 6, 7, 8,
2009              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8);
2010     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f\n",
2011              1, 2, 3, 4, 5, 6, 7, 8,
2012              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0);
2013     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2014              "%l %l %f %f\n",
2015              1, 2, 3, 4, 5, 6, 7, 8,
2016              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2017              1234567891234LL, 987654321986LL,
2018              42.0, 43.0);
2019     vprintf1("%F %d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2020              "%l %l %f %f\n",
2021              ld, 1, 2, 3, 4, 5, 6, 7, 8,
2022              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2023              1234567891234LL, 987654321986LL,
2024              42.0, 43.0);
2025     vprintf1("%d %d %d %d %d %d %d %d %F\n",
2026              1, 2, 3, 4, 5, 6, 7, 8, ld);
2027     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2028              "%l %l %f %f %F\n",
2029              1, 2, 3, 4, 5, 6, 7, 8,
2030              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2031              1234567891234LL, 987654321986LL,
2032              42.0, 43.0, ld);
2033     vprintf1("%d %d %d %d %d %d %d %d %f %f %f %f %f %f %f %f %f %f "
2034              "%F %l %l %f %f %F\n",
2035              1, 2, 3, 4, 5, 6, 7, 8,
2036              0.1, 1.2, 2.3, 3.4, 4.5, 5.6, 6.7, 7.8, 8.9, 9.0,
2037              ld, 1234567891234LL, 987654321986LL,
2038              42.0, 43.0, ld);
2039
2040     bob.profile = 42;
2041     stdarg_for_struct(bob, bob, bob, bob.profile);
2042 }
2043
2044 void whitespace_test(void)
2045 {
2046     char *str;
2047
2048 \f\v
#if 1
2049     pri\
2050 ntf("whitspace:\n");\f\v
2051 #endif
2052     pf("N=%d\n", 2);
2053
2054 #ifdef CORRECT_CR_HANDLING
2055     pri\
2056 ntf("aaa=%d\n", 3);
2057 #endif
2058
2059     pri\
2060 \
2061 ntf("min=%d\n", 4);
2062
2063 #ifdef ACCEPT_CR_IN_STRINGS
2064     printf("len1=%d\n", strlen("
2065 "));
2066 #ifdef CORRECT_CR_HANDLING
2067     str = "
2068 ";
2069     printf("len1=%d str[0]=%d\n", strlen(str), str[0]);
2070 #endif
2071     printf("len1=%d\n", strlen("
a
2072 "));
2073 #endif /* ACCEPT_CR_IN_STRINGS */
2074 }
2075
2076 int reltab[3] = { 1, 2, 3 };
2077
2078 int *rel1 = &reltab[1];
2079 int *rel2 = &reltab[2];
2080
2081 void relocation_test(void)
2082 {
2083     printf("*rel1=%d\n", *rel1);
2084     printf("*rel2=%d\n", *rel2);
2085 }
2086
2087 void old_style_f(a,b,c)
2088      int a, b;
2089      double c;
2090 {
2091     printf("a=%d b=%d b=%f\n", a, b, c);
2092 }
2093
2094 void decl_func1(int cmpfn())
2095 {
2096     printf("cmpfn=%lx\n", (long)cmpfn);
2097 }
2098
2099 void decl_func2(cmpfn)
2100 int cmpfn();
2101 {
2102     printf("cmpfn=%lx\n", (long)cmpfn);
2103 }
2104
2105 void old_style_function(void)
2106 {
2107     old_style_f((void *)1, 2, 3.0);
2108     decl_func1(NULL);
2109     decl_func2(NULL);
2110 }
2111
2112 void alloca_test()
2113 {
2114 #if defined __i386__ || defined __x86_64__
2115     char *p = alloca(16);
2116     strcpy(p,"123456789012345");
2117     printf("alloca: p is %s\n", p);
2118     char *demo = "This is only a test.\n";
2119     /* Test alloca embedded in a larger expression */
2120     printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
2121 #endif
2122 }
2123
2124 void *bounds_checking_is_enabled()
2125 {
2126     char ca[10], *cp = ca-1;
2127     return (ca != cp + 1) ? cp : NULL;
2128 }
2129
2130 typedef int constant_negative_array_size_as_compile_time_assertion_idiom[(1 ? 2 : 0) - 1];
2131
2132 void c99_vla_test(int size1, int size2)
2133 {
2134 #if defined __i386__ || defined __x86_64__
2135     int size = size1 * size2;
2136     int tab1[size][2], tab2[10][2];
2137     void *tab1_ptr, *tab2_ptr, *bad_ptr;
2138
2139     /* "size" should have been 'captured' at tab1 declaration,
2140         so modifying it should have no effect on VLA behaviour. */
2141     size = size-1;
2142
2143     printf("Test C99 VLA 1 (sizeof): ");
2144     printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
2145     tab1_ptr = tab1;
2146     tab2_ptr = tab2;
2147     printf("Test C99 VLA 2 (ptrs substract): ");
2148     printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
2149     printf("Test C99 VLA 3 (ptr add): ");
2150     printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
2151     printf("Test C99 VLA 4 (ptr access): ");
2152     tab1[size1][1] = 42;
2153     printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
2154
2155     printf("Test C99 VLA 5 (bounds checking (might be disabled)): ");
2156     if (bad_ptr = bounds_checking_is_enabled()) {
2157         int *t1 = &tab1[size1 * size2 - 1][3];
2158         int *t2 = &tab2[9][3];
2159         printf("%s ", bad_ptr == t1 ? "PASSED" : "FAILED");
2160         printf("%s ", bad_ptr == t2 ? "PASSED" : "FAILED");
2161
2162         char*c1 = 1 + sizeof(tab1) + (char*)tab1;
2163         char*c2 = 1 + sizeof(tab2) + (char*)tab2;
2164         printf("%s ", bad_ptr == c1 ? "PASSED" : "FAILED");
2165         printf("%s ", bad_ptr == c2 ? "PASSED" : "FAILED");
2166
2167         int *i1 = tab1[-1];
2168         int *i2 = tab2[-1];
2169         printf("%s ", bad_ptr == i1 ? "PASSED" : "FAILED");
2170         printf("%s ", bad_ptr == i2 ? "PASSED" : "FAILED");
2171
2172         int *x1 = tab1[size1 * size2 + 1];
2173         int *x2 = tab2[10 + 1];
2174         printf("%s ", bad_ptr == x1 ? "PASSED" : "FAILED");
2175         printf("%s ", bad_ptr == x2 ? "PASSED" : "FAILED");
2176     } else {
2177         printf("PASSED PASSED PASSED PASSED PASSED PASSED PASSED PASSED ");
2178     }
2179     printf("\n");
2180 #endif
2181 }
2182
2183 typedef __SIZE_TYPE__ uintptr_t;
2184
2185 void sizeof_test(void)
2186 {
2187     int a;
2188     int **ptr;
2189
2190     printf("sizeof(int) = %d\n", sizeof(int));
2191     printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
2192     printf("sizeof(long) = %d\n", sizeof(long));
2193     printf("sizeof(unsigned long) = %d\n", sizeof(unsigned long));
2194     printf("sizeof(short) = %d\n", sizeof(short));
2195     printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
2196     printf("sizeof(char) = %d\n", sizeof(char));
2197     printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
2198     printf("sizeof(func) = %d\n", sizeof sizeof_test());
2199     a = 1;
2200     printf("sizeof(a++) = %d\n", sizeof a++);
2201     printf("a=%d\n", a);
2202     ptr = NULL;
2203     printf("sizeof(**ptr) = %d\n", sizeof (**ptr));
2204
2205     /* The type of sizeof should be as large as a pointer, actually
2206        it should be size_t.  */
2207     printf("sizeof(sizeof(int) = %d\n", sizeof(sizeof(int)));
2208     uintptr_t t = 1;
2209     uintptr_t t2;
2210     /* Effectively <<32, but defined also on 32bit machines.  */
2211     t <<= 16;
2212     t <<= 16;
2213     t++;
2214     /* This checks that sizeof really can be used to manipulate
2215        uintptr_t objects, without truncation.  */
2216     t2 = t & -sizeof(uintptr_t);
2217     printf ("%lu %lu\n", t, t2);
2218
2219     /* some alignof tests */
2220     printf("__alignof__(int) = %d\n", __alignof__(int));
2221     printf("__alignof__(unsigned int) = %d\n", __alignof__(unsigned int));
2222     printf("__alignof__(short) = %d\n", __alignof__(short));
2223     printf("__alignof__(unsigned short) = %d\n", __alignof__(unsigned short));
2224     printf("__alignof__(char) = %d\n", __alignof__(char));
2225     printf("__alignof__(unsigned char) = %d\n", __alignof__(unsigned char));
2226     printf("__alignof__(func) = %d\n", __alignof__ sizeof_test());
2227 }
2228
2229 void typeof_test(void)
2230 {
2231     double a;
2232     typeof(a) b;
2233     typeof(float) c;
2234
2235     a = 1.5;
2236     b = 2.5;
2237     c = 3.5;
2238     printf("a=%f b=%f c=%f\n", a, b, c);
2239 }
2240
2241 void statement_expr_test(void)
2242 {
2243     int a, i;
2244
2245     a = 0;
2246     for(i=0;i<10;i++) {
2247         a += 1 +
2248             ( { int b, j;
2249                 b = 0;
2250                 for(j=0;j<5;j++)
2251                     b += j; b;
2252             } );
2253     }
2254     printf("a=%d\n", a);
2255
2256 }
2257
2258 void local_label_test(void)
2259 {
2260     int a;
2261     goto l1;
2262  l2:
2263     a = 1 + ({
2264         __label__ l1, l2, l3, l4;
2265         goto l1;
2266     l4:
2267         printf("aa1\n");
2268         goto l3;
2269     l2:
2270         printf("aa3\n");
2271         goto l4;
2272     l1:
2273         printf("aa2\n");
2274         goto l2;
2275     l3:;
2276         1;
2277     });
2278     printf("a=%d\n", a);
2279     return;
2280  l4:
2281     printf("bb1\n");
2282     goto l2;
2283  l1:
2284     printf("bb2\n");
2285     goto l4;
2286 }
2287
2288 /* inline assembler test */
2289 #ifdef __i386__
2290
2291 /* from linux kernel */
2292 static char * strncat1(char * dest,const char * src,size_t count)
2293 {
2294 int d0, d1, d2, d3;
2295 __asm__ __volatile__(
2296         "repne\n\t"
2297         "scasb\n\t"
2298         "decl %1\n\t"
2299         "movl %8,%3\n"
2300         "1:\tdecl %3\n\t"
2301         "js 2f\n\t"
2302         "lodsb\n\t"
2303         "stosb\n\t"
2304         "testb %%al,%%al\n\t"
2305         "jne 1b\n"
2306         "2:\txorl %2,%2\n\t"
2307         "stosb"
2308         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2309         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2310         : "memory");
2311 return dest;
2312 }
2313
2314 static char * strncat2(char * dest,const char * src,size_t count)
2315 {
2316 int d0, d1, d2, d3;
2317 __asm__ __volatile__(
2318         "repne scasb\n\t" /* one-line repne prefix + string op */
2319         "decl %1\n\t"
2320         "movl %8,%3\n"
2321         "1:\tdecl %3\n\t"
2322         "js 2f\n\t"
2323         "lodsb\n\t"
2324         "stosb\n\t"
2325         "testb %%al,%%al\n\t"
2326         "jne 1b\n"
2327         "2:\txorl %2,%2\n\t"
2328         "stosb"
2329         : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
2330         : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
2331         : "memory");
2332 return dest;
2333 }
2334
2335 static inline void * memcpy1(void * to, const void * from, size_t n)
2336 {
2337 int d0, d1, d2;
2338 __asm__ __volatile__(
2339         "rep ; movsl\n\t"
2340         "testb $2,%b4\n\t"
2341         "je 1f\n\t"
2342         "movsw\n"
2343         "1:\ttestb $1,%b4\n\t"
2344         "je 2f\n\t"
2345         "movsb\n"
2346         "2:"
2347         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2348         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2349         : "memory");
2350 return (to);
2351 }
2352
2353 static inline void * memcpy2(void * to, const void * from, size_t n)
2354 {
2355 int d0, d1, d2;
2356 __asm__ __volatile__(
2357         "rep movsl\n\t"  /* one-line rep prefix + string op */
2358         "testb $2,%b4\n\t"
2359         "je 1f\n\t"
2360         "movsw\n"
2361         "1:\ttestb $1,%b4\n\t"
2362         "je 2f\n\t"
2363         "movsb\n"
2364         "2:"
2365         : "=&c" (d0), "=&D" (d1), "=&S" (d2)
2366         :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
2367         : "memory");
2368 return (to);
2369 }
2370
2371 static __inline__ void sigaddset1(unsigned int *set, int _sig)
2372 {
2373         __asm__("btsl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2374 }
2375
2376 static __inline__ void sigdelset1(unsigned int *set, int _sig)
2377 {
2378         asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
2379 }
2380
2381 static __inline__ __const__ unsigned int swab32(unsigned int x)
2382 {
2383         __asm__("xchgb %b0,%h0\n\t"     /* swap lower bytes     */
2384                 "rorl $16,%0\n\t"       /* swap words           */
2385                 "xchgb %b0,%h0"         /* swap higher bytes    */
2386                 :"=q" (x)
2387                 : "0" (x));
2388         return x;
2389 }
2390
2391 static __inline__ unsigned long long mul64(unsigned int a, unsigned int b)
2392 {
2393     unsigned long long res;
2394     __asm__("mull %2" : "=A" (res) : "a" (a), "r" (b));
2395     return res;
2396 }
2397
2398 static __inline__ unsigned long long inc64(unsigned long long a)
2399 {
2400     unsigned long long res;
2401     __asm__("addl $1, %%eax ; adcl $0, %%edx" : "=A" (res) : "A" (a));
2402     return res;
2403 }
2404
2405 unsigned int set;
2406
2407 void asm_test(void)
2408 {
2409     char buf[128];
2410     unsigned int val;
2411
2412     printf("inline asm:\n");
2413     /* test the no operand case */
2414     asm volatile ("xorl %eax, %eax");
2415
2416     memcpy1(buf, "hello", 6);
2417     strncat1(buf, " worldXXXXX", 3);
2418     printf("%s\n", buf);
2419
2420     memcpy2(buf, "hello", 6);
2421     strncat2(buf, " worldXXXXX", 3);
2422     printf("%s\n", buf);
2423
2424     /* 'A' constraint test */
2425     printf("mul64=0x%Lx\n", mul64(0x12345678, 0xabcd1234));
2426     printf("inc64=0x%Lx\n", inc64(0x12345678ffffffff));
2427
2428     set = 0xff;
2429     sigdelset1(&set, 2);
2430     sigaddset1(&set, 16);
2431     /* NOTE: we test here if C labels are correctly restored after the
2432        asm statement */
2433     goto label1;
2434  label2:
2435     __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc");
2436 #ifdef __GNUC__ // works strange with GCC 4.3
2437     set=0x1080fd;
2438 #endif
2439     printf("set=0x%x\n", set);
2440     val = 0x01020304;
2441     printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val));
2442     return;
2443  label1:
2444     goto label2;
2445 }
2446
2447 #else
2448
2449 void asm_test(void)
2450 {
2451 }
2452
2453 #endif
2454
2455 #define COMPAT_TYPE(type1, type2) \
2456 {\
2457     printf("__builtin_types_compatible_p(%s, %s) = %d\n", #type1, #type2, \
2458            __builtin_types_compatible_p (type1, type2));\
2459 }
2460
2461 int constant_p_var;
2462
2463 void builtin_test(void)
2464 {
2465 #if GCC_MAJOR >= 3
2466     COMPAT_TYPE(int, int);
2467     COMPAT_TYPE(int, unsigned int);
2468     COMPAT_TYPE(int, char);
2469     COMPAT_TYPE(int, const int);
2470     COMPAT_TYPE(int, volatile int);
2471     COMPAT_TYPE(int *, int *);
2472     COMPAT_TYPE(int *, void *);
2473     COMPAT_TYPE(int *, const int *);
2474     COMPAT_TYPE(char *, unsigned char *);
2475 /* space is needed because tcc preprocessor introduces a space between each token */
2476     COMPAT_TYPE(char * *, void *);
2477 #endif
2478     printf("res = %d\n", __builtin_constant_p(1));
2479     printf("res = %d\n", __builtin_constant_p(1 + 2));
2480     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
2481     printf("res = %d\n", __builtin_constant_p(constant_p_var));
2482 }
2483
2484 #ifndef _WIN32
2485 extern int __attribute__((weak)) weak_f1(void);
2486 extern int __attribute__((weak)) weak_f2(void);
2487 extern int                       weak_f3(void);
2488 extern int __attribute__((weak)) weak_v1;
2489 extern int __attribute__((weak)) weak_v2;
2490 extern int                       weak_v3;
2491
2492 extern int                           (*weak_fpa)() __attribute__((weak));
2493 extern int __attribute__((weak))     (*weak_fpb)();
2494 extern     __attribute__((weak)) int (*weak_fpc)();
2495
2496 extern int                     weak_asm_f1(void) asm("weak_asm_f1x") __attribute((weak));
2497 extern int __attribute((weak)) weak_asm_f2(void) asm("weak_asm_f2x")                    ;
2498 extern int __attribute((weak)) weak_asm_f3(void) asm("weak_asm_f3x") __attribute((weak));
2499 extern int                     weak_asm_v1       asm("weak_asm_v1x") __attribute((weak));
2500 extern int __attribute((weak)) weak_asm_v2       asm("weak_asm_v2x")                    ;
2501 extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak));
2502
2503 static const size_t dummy = 0;
2504 extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy")));
2505 extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2;
2506 extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3;
2507
2508 int some_lib_func(void);
2509 int dummy_impl_of_slf(void) { return 444; }
2510 int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf")));
2511
2512 int weak_toolate() __attribute__((weak));
2513 int weak_toolate() { return 0; }
2514
2515 void __attribute__((weak)) weak_test(void)
2516 {
2517         printf("weak_f1=%d\n", weak_f1 ? weak_f1() : 123);
2518         printf("weak_f2=%d\n", weak_f2 ? weak_f2() : 123);
2519         printf("weak_f3=%d\n", weak_f3 ? weak_f3() : 123);
2520         printf("weak_v1=%d\n",&weak_v1 ? weak_v1   : 123);
2521         printf("weak_v2=%d\n",&weak_v2 ? weak_v2   : 123);
2522         printf("weak_v3=%d\n",&weak_v3 ? weak_v3   : 123);
2523
2524         printf("weak_fpa=%d\n",&weak_fpa ? weak_fpa() : 123);
2525         printf("weak_fpb=%d\n",&weak_fpb ? weak_fpb() : 123);
2526         printf("weak_fpc=%d\n",&weak_fpc ? weak_fpc() : 123);
2527
2528         printf("weak_asm_f1=%d\n", weak_asm_f1 != NULL);
2529         printf("weak_asm_f2=%d\n", weak_asm_f2 != NULL);
2530         printf("weak_asm_f3=%d\n", weak_asm_f3 != NULL);
2531         printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL);
2532         printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL);
2533         printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL);
2534 }
2535
2536 int __attribute__((weak)) weak_f2() { return 222; }
2537 int __attribute__((weak)) weak_f3() { return 333; }
2538 int __attribute__((weak)) weak_v2 = 222;
2539 int __attribute__((weak)) weak_v3 = 333;
2540 #endif
2541
2542 void const_func(const int a)
2543 {
2544 }
2545
2546 void const_warn_test(void)
2547 {
2548     const_func(1);
2549 }
2550
2551 struct condstruct {
2552   int i;
2553 };
2554
2555 int getme (struct condstruct *s, int i)
2556 {
2557   int i1 = (i == 0 ? 0 : s)->i;
2558   int i2 = (i == 0 ? s : 0)->i;
2559   int i3 = (i == 0 ? (void*)0 : s)->i;
2560   int i4 = (i == 0 ? s : (void*)0)->i;
2561   return i1 + i2 + i3 + i4;
2562 }
2563
2564 struct global_data
2565 {
2566   int a[40];
2567   int *b[40];
2568 };
2569
2570 struct global_data global_data;
2571
2572 int global_data_getstuff (int *, int);
2573
2574 void global_data_callit (int i)
2575 {
2576   *global_data.b[i] = global_data_getstuff (global_data.b[i], 1);
2577 }
2578
2579 int global_data_getstuff (int *p, int i)
2580 {
2581   return *p + i;
2582 }
2583
2584 void global_data_test (void)
2585 {
2586   global_data.a[0] = 42;
2587   global_data.b[0] = &global_data.a[0];
2588   global_data_callit (0);
2589   printf ("%d\n", global_data.a[0]);
2590 }
2591
2592 struct cmpcmpS
2593 {
2594   unsigned char fill : 3;
2595   unsigned char b1 : 1;
2596   unsigned char b2 : 1;
2597   unsigned char fill2 : 3;
2598 };
2599
2600 int glob1, glob2, glob3;
2601
2602 void compare_comparisons (struct cmpcmpS *s)
2603 {
2604   if (s->b1 != (glob1 == glob2)
2605       || (s->b2 != (glob1 == glob3)))
2606     printf ("comparing comparisons broken\n");
2607 }
2608
2609 void cmp_comparison_test(void)
2610 {
2611   struct cmpcmpS s;
2612   s.b1 = 1;
2613   glob1 = 42; glob2 = 42;
2614   s.b2 = 0;
2615   glob3 = 43;
2616   compare_comparisons (&s);
2617 }
2618
2619 int fcompare (double a, double b, int code)
2620 {
2621   switch (code) {
2622     case 0: return a == b;
2623     case 1: return a != b;
2624     case 2: return a < b;
2625     case 3: return a >= b;
2626     case 4: return a > b;
2627     case 5: return a <= b;
2628   }
2629 }
2630
2631 void math_cmp_test(void)
2632 {
2633   double nan = 0.0/0.0;
2634   double one = 1.0;
2635   double two = 2.0;
2636   int comp = 0;
2637 #define bug(a,b,op,iop,part) printf("Test broken: %s %s %s %s %d\n", #a, #b, #op, #iop, part)
2638
2639   /* This asserts that "a op b" is _not_ true, but "a iop b" is true.
2640      And it does this in various ways so that all code generation paths
2641      are checked (generating inverted tests, or non-inverted tests, or
2642      producing a 0/1 value without jumps (that's done in the fcompare
2643      function).  */
2644 #define FCMP(a,b,op,iop,code) \
2645   if (fcompare (a,b,code))    \
2646     bug (a,b,op,iop,1); \
2647   if (a op b) \
2648     bug (a,b,op,iop,2); \
2649   if (a iop b) \
2650     ; \
2651   else \
2652     bug (a,b,op,iop,3); \
2653   if ((a op b) || comp) \
2654     bug (a,b,op,iop,4); \
2655   if ((a iop b) || comp) \
2656     ; \
2657   else \
2658     bug (a,b,op,iop,5);
2659
2660   /* Equality tests.  */
2661   FCMP(nan, nan, ==, !=, 0);
2662   FCMP(one, two, ==, !=, 0);
2663   FCMP(one, one, !=, ==, 1);
2664   /* Non-equality is a bit special.  */
2665   if (!fcompare (nan, nan, 1))
2666     bug (nan, nan, !=, ==, 6);
2667
2668   /* Relational tests on numbers.  */
2669   FCMP(two, one, <, >=, 2);
2670   FCMP(one, two, >=, <, 3);
2671   FCMP(one, two, >, <=, 4);
2672   FCMP(two, one, <=, >, 5);
2673
2674   /* Relational tests on NaNs.  Note that the inverse op here is
2675      always !=, there's no operator in C that is equivalent to !(a < b),
2676      when NaNs are involved, same for the other relational ops.  */
2677   FCMP(nan, nan, <, !=, 2);
2678   FCMP(nan, nan, >=, !=, 3);
2679   FCMP(nan, nan, >, !=, 4);
2680   FCMP(nan, nan, <=, !=, 5);
2681 }
2682
2683 double get100 () { return 100.0; }
2684
2685 void callsave_test(void)
2686 {
2687 #if defined __i386__ || defined __x86_64__
2688   int i, s; double *d; double t;
2689   s = sizeof (double);
2690   printf ("callsavetest: %d\n", s);
2691   d = alloca (sizeof(double));
2692   d[0] = 10.0;
2693   /* x86-64 had a bug were the next call to get100 would evict
2694      the lvalue &d[0] as VT_LLOCAL, and the reload would be done
2695      in int type, not pointer type.  When alloca returns a pointer
2696      with the high 32 bit set (which is likely on x86-64) the access
2697      generates a segfault.  */
2698   i = d[0] > get100 ();
2699   printf ("%d\n", i);
2700 #endif
2701 }
2702
2703
2704 void bfa3(ptrdiff_t str_offset)
2705 {
2706     printf("bfa3: %s\n", (char *)__builtin_frame_address(3) + str_offset);
2707 }
2708 void bfa2(ptrdiff_t str_offset)
2709 {
2710     printf("bfa2: %s\n", (char *)__builtin_frame_address(2) + str_offset);
2711     bfa3(str_offset);
2712 }
2713 void bfa1(ptrdiff_t str_offset)
2714 {
2715     printf("bfa1: %s\n", (char *)__builtin_frame_address(1) + str_offset);
2716 #if defined(__arm__) && !defined(__GNUC__)
2717     bfa2(str_offset);
2718 #endif
2719 }
2720
2721 void builtin_frame_address_test(void)
2722 {
2723     char str[] = "__builtin_frame_address";
2724     char *fp0 = __builtin_frame_address(0);
2725
2726     printf("str: %s\n", str);
2727     bfa1(str-fp0);
2728 }