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comparison gcc/testsuite/gcc.dg/strcmpopt_2.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children 1830386684a0
comparison
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111:04ced10e8804 131:84e7813d76e9
1 /* { dg-do run } */
2 /* { dg-options "-O2 -fdump-tree-strlen" } */
3
4 char s[100] = {'a','b','c','d'};
5 typedef struct { char s[8]; int x; } S;
6
7 __attribute__ ((noinline)) int
8 f1 (S *s)
9 {
10 return __builtin_strcmp (s->s, "abc") != 0;
11 }
12
13 __attribute__ ((noinline)) int
14 f2 (void)
15 {
16 return __builtin_strcmp (s, "abc") != 0;
17 }
18
19 __attribute__ ((noinline)) int
20 f3 (S *s)
21 {
22 return __builtin_strcmp ("abc", s->s) != 0;
23 }
24
25 __attribute__ ((noinline)) int
26 f4 (void)
27 {
28 return __builtin_strcmp ("abc", s) != 0;
29 }
30
31 __attribute__ ((noinline)) int
32 f5 (S *s)
33 {
34 return __builtin_strncmp (s->s, "abc", 3) != 0;
35 }
36
37 __attribute__ ((noinline)) int
38 f6 (void)
39 {
40 return __builtin_strncmp (s, "abc", 2) != 0;
41 }
42
43 __attribute__ ((noinline)) int
44 f7 (S *s)
45 {
46 return __builtin_strncmp ("abc", s->s, 3) != 0;
47 }
48
49 __attribute__ ((noinline)) int
50 f8 (void)
51 {
52 return __builtin_strncmp ("abc", s, 2) != 0;
53 }
54
55 int main (void)
56 {
57 S ss = {{'a','b','c'}, 2};
58
59 if (f1 (&ss) != 0 || f2 () != 1 || f3 (&ss) != 0 ||
60 f4 () != 1 || f5 (&ss) != 0 || f6 () != 0 ||
61 f7 (&ss) != 0 || f8 () != 0)
62 __builtin_abort ();
63
64 return 0;
65 }
66
67 /* { dg-final { scan-tree-dump-times "cmp_eq \\(" 8 "strlen" } } */