1 /* This failed on s390x due to bug in loop.c.
2 loop.c failed to remove a REG_EQUAL note when
3 hoisting an insn from a loop body. */
4
5 /* { dg-options "-O3 -fPIC" } */
6 /* { dg-do run { target fpic } } */
7
8 typedef __SIZE_TYPE__ size_t;
9 int memcmp(const void *s1, const void *s2, size_t n);
10
11 typedef struct
12 {
13 char name[30];
14 int a;
15 } LOCAL;
16
17 int global = 0;
18 int sy = 1;
19 int subroutine_offset;
20
21 LOCAL local = { "local", 0 };
22 LOCAL keywords = { "keywords", 1 };
23 int local_table = 0;
24 int keywords_table = 0;
25
bar(char * p_buffer)26 void __attribute__((noinline)) bar (char *p_buffer)
27 {
28 p_buffer[255] = 1;
29 }
30
foo(char * p_str1)31 int __attribute__((noinline)) foo (char *p_str1)
32 {
33 global = 1;
34 return 1;
35 }
36
loop_next(int * p_table,char * p_table_head)37 int __attribute__((noinline)) loop_next (int *p_table, char *p_table_head)
38 {
39 static int loop_next = 0;
40
41 if (loop_next == 1)
42 return 1;
43
44 loop_next = 1;
45 return 0;
46 }
47
48 int
main()49 main ()
50 {
51 char buffer[256];
52 int ende = 0;
53 int index;
54 int local_base = 2;
55
56 keywords.a = 1;
57 for (sy = 0;; sy++)
58 {
59 for (index = 1;;)
60 {
61 bar (buffer);
62 if (buffer[sy] != 0)
63 {
64 ende = 1;
65 break;
66 };
67 if (foo (buffer))
68 {
69 keywords.a += index - 1;
70 break;
71 }
72 index++;
73 }
74 if (ende)
75 break;
76 }
77
78 subroutine_offset = 0;
79
80 for (;;)
81 {
82 if (loop_next (&keywords_table, (char*)&keywords))
83 break;
84
85 if ((!memcmp (keywords.name, "+++", 3)))
86 local_base = 100;
87 else
88 local_base = 0;
89
90 if ((!memcmp (keywords.name, "+++", 3)))
91 subroutine_offset += local_table;
92
93 for (;;)
94 {
95 if (loop_next (&local_table, (char*)&local))
96 break;;
97 if ((local.a == 0))
98 continue;;
99 foo (local.name);
100 }
101 }
102 return 0;
103 }
104