modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pr43236.c (about) 1 /* { dg-options "-ftree-loop-distribution" } */ 2 extern void abort(void); 3 extern void *memset(void *s, int c, __SIZE_TYPE__ n); 4 extern int memcmp(const void *s1, const void *s2, __SIZE_TYPE__ n); 5 /*extern int printf(const char *format, ...);*/ 6 7 int main() 8 { 9 char A[30], B[30], C[30]; 10 int i; 11 12 /* prepare arrays */ 13 memset(A, 1, 30); 14 memset(B, 1, 30); 15 16 for (i = 20; i-- > 10;) { 17 A[i] = 0; 18 B[i] = 0; 19 } 20 21 /* expected result */ 22 memset(C, 1, 30); 23 memset(C + 10, 0, 10); 24 25 /* show result */ 26 /* for (i = 0; i < 30; i++) 27 printf("%d %d %d\n", A[i], B[i], C[i]); */ 28 29 /* compare results */ 30 if (memcmp(A, C, 30) || memcmp(B, C, 30)) abort(); 31 return 0; 32 }