1 /* { dg-do run } */
2 /* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
3 /* { dg-options "-save-temps -O2 -fno-inline" } */
4 /* { dg-add-options "arm_neon" } */
5
6 #include <string.h>
7 #include <stdlib.h>
8
9 #define LEN (100)
10 int a[LEN];
11 int b[LEN];
12 int c[LEN];
13 void
foo1(void)14 foo1 (void)
15 {
16 memset (a, -1, 8);
17 return;
18 }
19
20 void
foo2(void)21 foo2 (void)
22 {
23 memset (b, 1, 12);
24 return;
25 }
26
27 void
foo3(void)28 foo3 (void)
29 {
30 memset (c, 1, 13);
31 return;
32 }
33
34 void
check(signed char * arr,int idx,int len,int v)35 check (signed char *arr, int idx, int len, int v)
36 {
37 int i;
38 for (i = 0; i < idx; i++)
39 if (arr[i] != v)
40 abort ();
41
42 for (i = idx; i < len; i++)
43 if (arr[i] != 0)
44 abort ();
45 }
46
47 int
main(void)48 main(void)
49 {
50 int i;
51
52 foo1 ();
53 check ((signed char *)a, 8, sizeof (a), -1);
54
55 foo2 ();
56 check ((signed char *)b, 12, sizeof (b), 1);
57
58 foo3 ();
59 check ((signed char *)c, 13, sizeof (c), 1);
60
61 return 0;
62 }
63
64 /* { dg-final { scan-assembler-not "bl?\[ \t\]+memset" { target { ! arm_thumb1_ok } } } } */
65 /* { dg-final { scan-assembler-times "vst1\.8" 1 { target { arm_little_endian && arm_neon } } } } */
66 /* { dg-final { scan-assembler "vstr" { target { arm_little_endian && arm_neon } } } } */
67