|
111
|
1 /* { dg-do run } */
|
|
|
2 /* { dg-options "-O2 -fdump-tree-strlen" } */
|
|
|
3
|
|
|
4 #include "strlenopt.h"
|
|
|
5
|
|
|
6 volatile int v;
|
|
|
7
|
|
|
8 size_t
|
|
|
9 f1 (void)
|
|
|
10 {
|
|
|
11 char a[30];
|
|
|
12 v += 1;
|
|
|
13 memcpy (a, "1234567", 8);
|
|
|
14 memcpy (a + 7, "89abcdefg", 10);
|
|
|
15 memcpy (a + 16, "h", 2);
|
|
|
16 return strlen (a); // This strlen should be optimized into 17.
|
|
|
17 }
|
|
|
18
|
|
|
19 size_t
|
|
|
20 f2 (void)
|
|
|
21 {
|
|
|
22 char a[30];
|
|
|
23 v += 2;
|
|
|
24 strcpy (a, "1234567");
|
|
|
25 strcpy (a + 7, "89abcdefg");
|
|
|
26 strcpy (a + 16, "h");
|
|
|
27 return strlen (a); // This strlen should be optimized into 17.
|
|
|
28 }
|
|
|
29
|
|
|
30 size_t
|
|
|
31 f3 (char *a)
|
|
|
32 {
|
|
|
33 v += 3;
|
|
|
34 memcpy (a, "1234567", 8);
|
|
|
35 memcpy (a + 7, "89abcdefg", 10);
|
|
|
36 memcpy (a + 16, "h", 2);
|
|
|
37 return strlen (a); // This strlen should be optimized into 17.
|
|
|
38 }
|
|
|
39
|
|
|
40 size_t
|
|
|
41 f4 (char *a)
|
|
|
42 {
|
|
|
43 v += 4;
|
|
|
44 strcpy (a, "1234567");
|
|
|
45 strcpy (a + 7, "89abcdefg");
|
|
|
46 strcpy (a + 16, "h");
|
|
|
47 return strlen (a); // This strlen should be optimized into 17.
|
|
|
48 }
|
|
|
49
|
|
|
50 int
|
|
|
51 main ()
|
|
|
52 {
|
|
|
53 char a[30];
|
|
|
54 if (f1 () != 17 || f2 () != 17 || f3 (a) != 17 || f4 (a) != 17)
|
|
|
55 abort ();
|
|
|
56 return 0;
|
|
|
57 }
|
|
|
58
|
|
145
|
59 /* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen1" } } */
|
