我不清楚你是否很高兴看到你的程序会让编译器崩溃的情况,反正我很喜欢,相当于发现了编译器的 bug。
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本文列出 57 段代码以及相应的编译器版本和编译参数,在这个环境下对代码进行编译会导致编译器崩溃。
C1 : Crashes Clang 2.6 at -O0:
- #pragma pack(1)
- struct S1 {
- int f0;
- char f2
- };
- struct {
- struct S1 f0
- }
- a[] = { 0 }
- ;
C2 : Crashes Clang 2.6 at -O2:
- struct S0 {
- int f0:1;
- int f4
- }
- a;
- void
- fn1 () {
- struct S0 b[][1][1] = { 0 };
- b[0][0][0] = a;
- }
C3 : Crashes Clang 2.6 at -O2:
- unsigned short a;
- int b;
- char c;
- short
- fn1 () {
- return 1 / a;
- }
- void
- fn2 () {
- b = fn1 ();
- char d = b;
- c = d % 3;
- }
C4 : Crashes Clang 2.6 at -O3:
- int a, b, c, d, e;
- #pragma pack(1)
- struct S0 {
- int f0:14;
- int f1:13;
- int f2:28;
- int f3:23;
- int f4:12
- };
- void fn1 (struct S0);
- void
- fn2 () {
- int f;
- lbl_2311:
- ;
- struct S0 g = { 0, 0, 1 };
- fn1 (g);
- b && e;
- for (; c;) {
- if (d)
- goto lbl_2311;
- f = a && 1 ? 0 : 1;
- g.f4 = f;
- }
- }
C5 : Crashes Clang 2.6 at -O2:
- int crc32_context, g_2 = 0, g_5;
- int g_8;
- int *g_39, *g_371;
- int g_81;
- int func_1_l_15 ;
- static short safe_add_func_int16_t_s_s ( short si1, int si2 ) {
- return si1 > 67 ? si1 : si1 + si2;
- }
- static int func_1 ( ) {
- int l_462 = 0;
- g_2 = 0;
- for ( ;
- g_2 < 12;
- g_2 = safe_add_func_int16_t_s_s ( g_2, 5 ) ) {
- g_5 = 1;
- for ( ;
- g_5;
- ++g_5 ) {
- g_8 = 1;
- for ( ;
- g_8 >= 0;
- g_8 = g_8 - 1 ) {
- func_1_l_15 = 1;
- for ( ;
- func_1_l_15;
- func_1_l_15 = func_1_l_15 - 1 ) if ( g_8 ) break;
- }
- g_371 = &l_462;
- int *l_128 = &g_81;
- *l_128 = *g_39;
- }
- *g_371 = 0 != 0 ;
- }
- return 0;
- }
- int main ( ) {
- func_1 ( );
- crc32_context = g_2;
- crc32_context += g_5;
- }
C6 : Crashes Clang 2.6 at -O0:
- #pragma pack(1)
- struct S2 {
- int f1;
- short f4
- };
- struct S3 {
- struct S2 f1;
- int f3:14
- };
- struct {
- struct S3 f3
- }
- a = { 0, 0, 0 };
C7 : Crashes Clang 2.6 at -O1:
- int *a;
- static int **b;
- int c, d, e;
- void
- fn1 () {
- d = &b == c;
- for (;;) {
- int **f = &a;
- if (e) {
- } else
- b = f;
- if (**b)
- continue;
- **f;
- }
- }
C8 : Crashes Clang 2.6 at -O1:
- #pragma pack(1)
- struct S0 {
- int f3;
- char f4
- };
- struct {
- struct S0 f6;
- int f8
- }
- a = { 0, 0, 0 };
C9 : Crashes Clang 2.6 at -O2:
- struct S0 {
- int f0;
- int f1;
- short f3;
- int f7;
- int f8
- }
- b;
- int a, c, d, e, f;
- void
- fn1 (struct S0 p1) {
- d++;
- c = p1.f8;
- e = 0;
- a = p1.f7;
- }
- void
- fn2 () {
- e = 0;
- for (; e; e++) {
- if (d)
- for (;;) {
- }
- --f;
- }
- fn1 (b);
- }
C10 : Crashes Clang 2.6 at -O1:
- union U2 {
- int f0;
- unsigned short f2
- }
- b;
- static int a = 1;
- void
- fn1 (int p1, unsigned short p2) {
- }
- int fn2 (union U2);
- union U2 fn3 ();
- static unsigned long long
- fn5 () {
- fn1 (b.f2, b.f0);
- return 0;
- }
- static char
- fn4 () {
- fn5 ();
- return 0;
- }
- int
- main () {
- a || fn2 (fn3 (fn4 () ) );
- }
C11 : Crashes Clang 2.7 at -O1:
- int *a;
- static int **b;
- int c, d, e;
- void
- fn1 () {
- d = &b == c;
- for (;;) {
- int **f = &a;
- if (e) {
- } else
- b = f;
- if (**b)
- continue;
- **f;
- }
- }
C12 : Crashes Clang 2.7 at -O0:
- char a;
- unsigned char b;
- int c;
- void
- fn1 () {
- (b ^= c) != a;
- }
C13 : Crashes Clang 2.7 at -O2:
- int a, b;
- void fn1 ();
- void
- fn2 (short p1) {
- short c;
- c = (65532 | 3) + p1;
- fn1 (c && 1);
- b = (0 == p1) * a;
- }
C14 : Crashes GCC 3.2.0 at -O1:
- void
- fn1 () {
- struct S0 *a;
- struct S0 *b, *c = &a;
- struct S0 **d = &c;
- if (&b == &a) {
- }
- }
C15 : Crashes GCC 3.2.0 at -O3:
- volatile int a, b, c, i;
- char d;
- void
- fn1 () {
- int e;
- {
- for (;; c++) {
- int f[50] = { };
- if (b) {
- {
- 0;
- {
- {
- int g = a, h = d;
- e = h ? g : g / 0;
- }
- }
- a = e;
- }
- }
- }
- }
- }
- void
- main () {
- i = 0 / 0;
- a;
- }
C16 : Crashes GCC 3.2.0 at -O3:
- int a, c;
- volatile int b;
- void
- fn1 () {
- b;
- for (;;)
- break;
- int d = b, e = a;
- c = a ? d : d % 0;
- }
- void
- fn2 () {
- if (0 % 0)
- b;
- }
C17 : Crashes GCC 3.2.0 at -O2:
- union U1 {
- int f0;
- char f1
- };
- void
- fn1 (union U1 p1) {
- p1.f1 = 0;
- for (; p1.f1;) {
- }
- }
C18 : Crashes GCC 3.2.0 at -O1:
- int a, b;
- void
- fn1 () {
- b = 4294967290UL <= a | b;
- }
C19 : Crashes GCC 3.2.0 at -O3:
- int a, b, c;
- int
- fn1 (int p1, int p2) {
- return p1 - p2;
- }
- void
- fn2 () {
- int d;
- int **e;
- int ***f = &e;
- d = a && b ? a : a % 0;
- if (fn1 (f == 0, 2) )
- c = ***f;
- }
C20 : Crashes GCC 3.3.0 at -O3:
- int a, b, d;
- struct S0 {
- int f3
- };
- int *volatile c;
- void fn1 (struct S0);
- void
- fn2 () {
- int e;
- struct S0 **f;
- struct S0 ***g = &f;
- (a && b && b ? 0 : b) > (&c && 0);
- e = 0 == g;
- d = e >> 1;
- for (;;)
- fn1 (***g);
- }
C21 : Crashes GCC 3.4.0 at -O3:
- int a, b;
- struct U0 {
- char f0;
- int f2
- };
- void
- fn1 () {
- struct U0 c;
- for (; c.f0 != 1; c.f0 = c.f0 + a)
- b -= 1;
- }
C22 : Crashes GCC 3.4.0 at -O3:
- int a, b, d, e;
- struct S0 {
- int f3
- };
- int *c;
- void fn1 (struct S0);
- void
- fn2 () {
- struct S0 **f;
- struct S0 ***g = &f;
- (a && b && b ? 0 : b) > (&c == d);
- e = 1 < (0 == g);
- for (;;)
- fn1 (***g);
- }
C23 : Crashes GCC 4.0.0 at -O2:
- int ***a;
- int b;
- int *c;
- void
- main () {
- if (&c == a)
- b = 0 == *a;
- }
C24 : Crashes GCC 4.0.0 at -O2:
- int a[][0];
- int *const b = &a[0][1];
- int
- fn1 () {
- return *b;
- }
C25 : Crashes GCC 4.0.0 at -O0:
- int a, b;
- unsigned char c;
- void
- fn1 () {
- (0 >= a & (0 || b) ) > c;
- }
C26 : Crashes GCC 4.0.0 at -O1:
- struct {
- int f9:1
- }
- a;
- const int b[] = { 0 };
- void fn1 ();
- void
- main () {
- for (;;) {
- a.f9 = b[0];
- fn1 ();
- }
- }
C27 : Crashes GCC 4.0.0 at -O0:
- int a, c;
- unsigned char b;
- void
- fn1 () {
- b > (c > 0 & 0 < a);
- }
C28 : Crashes GCC 4.0.0 at -O2:
- int **a[][0];
- static int ***const b = &a[0][1];
- void fn1 ();
- int
- fn2 () {
- return ***b;
- fn1 ();
- }
- void
- fn1 () {
- **b;
- }
C29 : Crashes GCC 4.1.0 at -O1:
- volatile int ***a;
- int b;
- int **c;
- void
- fn1 () {
- if (&c == a)
- b = 0 == *a;
- }
C30 : Crashes GCC 4.1.0 at -O1:
- struct {
- int f0;
- int f2
- }
- a;
- int b;
- void
- fn1 () {
- a.f2 = 0;
- int *c[] = { 0, 0, 0, 0, &a.f0, 0, 0, 0, &a.f0 };
- b = *c[4];
- }
C31 : Crashes GCC 4.1.0 at -O2:
- int a, b;
- unsigned c;
- void
- fn1 () {
- for (; c <= 0;)
- if (b < c)
- a = 1 && c;
- }
C32 : Crashes GCC 4.1.0 at -O1:
- unsigned a;
- int b;
- void
- main () {
- unsigned c = 4294967295;
- int d = c;
- b = a <= d || a;
- }
C33 : Crashes GCC 4.1.0 at -O1:
- const volatile long a;
- void
- main () {
- printf ("%d\n", (int) a);
- }
C34 : Crashes GCC 4.1.0 at -O3:
- int a, b;
- union U1 {
- int f0;
- int f1
- };
- void
- fn1 () {
- union U1 c = { 1 };
- int d = 1;
- if ( (c.f1 & a ? c.f1 : 1 - a) ^ d) {
- } else
- b = 0;
- }
C35 : Crashes GCC 4.2.0 at -O1:
- volatile int ***a;
- int b;
- int **c;
- void
- fn1 () {
- if (&c == a)
- b = 0 == *a;
- }
C36 : Crashes GCC 4.2.0 at -O1:
- struct S2 {
- volatile int f5:1;
- int f6
- };
- static struct S2 a;
- void
- main () {
- printf ("%d\n", a.f5);
- }
C37 : Crashes GCC 4.3.0 at -O1:
- long long *a;
- int b;
- void
- fn1 () {
- long long **c = &a;
- int d = 7;
- lbl_2890: {
- long long **e = &a;
- b = (e == c) < d;
- d = 0;
- goto lbl_2890;
- }
- }
C38 : Crashes GCC 4.3.0 at -O2:
- struct S2 {
- volatile int f5:1;
- int f6
- };
- static struct S2 a;
- void
- main () {
- printf ("%d\n", a.f5);
- }
C39 : Crashes GCC 4.3.0 at -O3:
- int a;
- short b;
- void
- fn1 () {
- int c[0];
- for (;;) {
- a = c[0];
- b = 0;
- for (; b < 7; b += 1)
- c[b] = 0;
- }
- }
C40 : Crashes GCC 4.3.0 at -O1:
- volatile int **a;
- int *b;
- void
- fn1 () {
- if (a == &b)
- **a;
- }
C41 : Crashes GCC 4.3.0 at -O3:
- int a, b, c, d, e, f;
- void
- fn1 () {
- char g;
- lbl_120:
- if (b || e >= 0 & d >= 0 || a)
- return;
- g = f < 0 ? 1 : f;
- d = g == 0 || (char) f == 0 && g == 1 ? 0 : 0 % 0;
- if (c)
- goto lbl_120;
- }
C42 : Crashes Intel CC 12.0.5 at -O1:
- struct U0 {
- int f0
- }
- a;
- struct U0
- fn1 () {
- return a;
- }
- void
- main () {
- 0 > a.f0;
- fn1 ();
- }
C43 : Crashes Open64 4.2.4 at -O3:
- int a;
- int *b;
- unsigned c;
- void
- fn1 () {
- for (; a; a--)
- if (*b) {
- c = 0;
- for (; c >= 5; c++) {
- }
- }
- }
C44 : Crashes Open64 4.2.4 at -O3:
- short a;
- void
- fn1 () {
- long b;
- b = 44067713550;
- a |= b;
- }
C45 : Crashes Open64 4.2.4 at -O3:
- volatile int a;
- void
- fn1 () {
- int b = 1;
- a || b--;
- }
C46 : Crashes Open64 4.2.4 at -O2:
- int a, b;
- void fn1 ();
- void fn2 ();
- void
- fn3 () {
- fn2 ();
- fn1 ();
- }
- void
- fn2 () {
- if (1) {
- } else
- for (;; b++) {
- int c = 0;
- int *d = &a;
- int **e = &d;
- *e = &c;
- *d = 0;
- *d |= 0;
- }
- }
C47 : Crashes Open64 4.2.4 at -O3:
- struct S0 {
- int f1:1
- };
- int a, b;
- void
- fn1 () {
- for (; b;) {
- struct S0 c = { };
- if (1) {
- c = c;
- a = c.f1;
- }
- }
- }
C48 : Crashes Open64 4.2.4 at -O3:
- int a, b;
- int
- fn1 () {
- int *c = &b;
- a = 0;
- for (; a >= -26; --a) {
- unsigned d = 18446744073709551615;
- int *e = &b;
- *e &= d;
- }
- return *c;
- }
C49 : Crashes Open64 4.2.4 at -O3:
- static int a, c, d;
- int b;
- int *e;
- void
- fn1 () {
- for (; a; a += 1) {
- b = 0;
- for (; b > -16; --b)
- for (; c;) {
- int *f = &d;
- *f = 0;
- } *e = 0;
- }
- }
C50 : Crashes Sun CC 5.11 at -xO4:
- unsigned char a, d;
- struct {
- int f2
- }
- b;
- int c, e;
- void
- fn1 (p1) {
- }
- void
- fn2 () {
- c = 0;
- for (; c <= 0;)
- e = b.f2;
- fn1 (0);
- b = b;
- d = -a;
- }
C51 : Crashes Sun CC 5.11 at -fast:
- int a, c;
- int b[1];
- void
- fn1 () {
- short d;
- for (; a; a -= 1) {
- d = b1 = b1;
- b[0] = 0;
- }
- }
C52 : Crashes Sun CC 5.11 at -xO4:
- int a, b, d;
- short c;
- int
- fn1 (p1) {
- return a ? 0 : p1;
- }
- void
- fn2 () {
- int e = 0;
- for (;;) {
- c = 0;
- d = fn1 (e ^ ~~c);
- d && b;
- }
- }
C53 : Crashes Sun CC 5.11 at -fast:
- long a;
- int b, d;
- int *c;
- void
- fn1 () {
- int *e;
- for (;; b--)
- for (; d;) {
- *c = 0;
- *c &= (&e != 1) / a;
- }
- }
C54 : Crashes Sun CC 5.11 at -xO0:
- #pragma pack(1)
- struct {
- int f3:1;
- int f4:16
- }
- a = { 1, 0 };
C55 : Crashes Sun CC 5.11 at -xO3:
- int a, c;
- static int b = 1;
- void fn1 ();
- void
- fn2 () {
- for (; a; a--) {
- c = 0;
- for (; c != 1;) {
- if (b)
- break;
- fn1 ();
- }
- }
- }
C56 : Crashes Sun CC 5.11 at -xO4:
- #pragma pack(1)
- struct S0 {
- int f1;
- int f3:1
- }
- a;
- void
- fn1 (struct S0 p1) {
- p1.f3 = 0;
- }
- void
- fn2 () {
- fn1 (a);
- }
C57 : Crashes Sun CC 5.11 at -fast:
- int a, c, d, e, f, g, h, i, j, k;
- volatile int b;
- int
- fn1 () {
- for (; d; d = a) {
- int *l = &c;
- c = -3;
- for (; c > -23; --c)
- if (k) {
- if (*l)
- continue;
- return b;
- }
- for (; i; ++i) {
- j = 0;
- g = h;
- for (; f <= 1; f += 1) {
- }
- }
- }
- return e;
- }
英文:http://blog.regehr.org/archives/696
当前标题:57个让C编译器崩溃的代码
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