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comparison gcc/testsuite/gcc.dg/strlenopt-18g.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 1830386684a0
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68:561a7518be6b 111:04ced10e8804
1 /* This test needs runtime that provides stpcpy function. */
2 /* { dg-do run { target *-*-linux* *-*-gnu* } } */
3 /* { dg-options "-O2 -fdump-tree-strlen" } */
4
5 #define USE_GNU
6 #include "strlenopt.h"
7
8 __attribute__((noinline, noclone)) char *
9 fn1 (int x, int y, int z)
10 {
11 static char buf[40];
12 const char *p;
13 switch (x)
14 {
15 case 0:
16 p = "abcd";
17 break;
18 case 1:
19 p = "efgh";
20 break;
21 case 2:
22 p = "ijkl";
23 break;
24 default:
25 p = "mnopq";
26 break;
27 }
28 if (y)
29 {
30 strcpy (buf, p);
31 if (z)
32 strcat (buf, "ABCDEFG");
33 else
34 strcat (buf, "HIJKLMN");
35 }
36 else
37 {
38 strcpy (buf, p + 1);
39 if (z)
40 strcat (buf, "OPQ");
41 else
42 strcat (buf, "RST");
43 }
44 return buf;
45 }
46
47 int
48 main ()
49 {
50 int i;
51 for (i = 0; i < 5; i++)
52 {
53 const char *p = "abcdefghijklmnopq" + (i < 3 ? i : 3) * 4;
54 const char *q;
55 int j = i >= 3;
56 fn1 (i ? 0 : 1, 1, 1);
57 q = fn1 (i, 0, 0);
58 if (memcmp (q, p + 1, 3 + j) != 0 || memcmp (q + 3 + j, "RST", 4) != 0)
59 abort ();
60 fn1 (i ? 0 : 1, 0, 1);
61 q = fn1 (i, 1, 0);
62 if (memcmp (q, p, 4 + j) != 0 || memcmp (q + 4 + j, "HIJKLMN", 8) != 0)
63 abort ();
64 fn1 (i ? 0 : 1, 1, 0);
65 q = fn1 (i, 0, 1);
66 if (memcmp (q, p + 1, 3 + j) != 0 || memcmp (q + 3 + j, "OPQ", 4) != 0)
67 abort ();
68 fn1 (i ? 0 : 1, 0, 0);
69 q = fn1 (i, 1, 1);
70 if (memcmp (q, p, 4 + j) != 0 || memcmp (q + 4 + j, "ABCDEFG", 8) != 0)
71 abort ();
72 }
73 return 0;
74 }
75
76 /* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen" } } */
77 /* { dg-final { scan-tree-dump-times "memcpy \\(" 4 "strlen" } } */
78 /* { dg-final { scan-tree-dump-times "strcpy \\(" 0 "strlen" } } */
79 /* { dg-final { scan-tree-dump-times "strcat \\(" 0 "strlen" } } */
80 /* { dg-final { scan-tree-dump-times "strchr \\(" 0 "strlen" } } */
81 /* { dg-final { scan-tree-dump-times "stpcpy \\(" 2 "strlen" } } */