1 /* { dg-do compile } */
2 /* { dg-options "-O2 -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
3
4 void foo(char *);
my_memcpy(void * q,unsigned int n)5 void my_memcpy (void *q, unsigned int n)
6 {
7 unsigned i;
8 char p[1024];
9 for (i = 0; i < n; ++i)
10 ((char *)p)[i] = ((char *)q)[i];
11 foo(p);
12 }
13
14 struct S { int i; int j; };
15
my_memcpy2(void * q,unsigned int n)16 void my_memcpy2 (void *q, unsigned int n)
17 {
18 unsigned i;
19 char p[1024];
20 for (i = 0; i < n; ++i)
21 ((struct S *)p)[i] = ((struct S *)q)[i];
22 foo(p);
23 }
24
25 char p[1024];
my_memmove(unsigned int n)26 void my_memmove (unsigned int n)
27 {
28 unsigned i;
29 for (i = 0; i < n; ++i)
30 p[i] = p[i+1];
31 foo(p);
32 }
33
34
35 /* { dg-final { scan-tree-dump-times "generated memcpy" 2 "ldist" } } */
36 /* { dg-final { scan-tree-dump-times "generated memmove" 1 "ldist" } } */
37