]>
Commit | Line | Data |
---|---|---|
984b2054 AM |
1 | /* PR middle-end/36043 target/58744 target/65408 */ |
2 | /* { dg-do run { target mmap } } */ | |
3 | /* { dg-options "-O2" } */ | |
4 | ||
5 | #include <sys/mman.h> | |
6 | #ifndef MAP_ANONYMOUS | |
7 | #define MAP_ANONYMOUS MAP_ANON | |
8 | #endif | |
9 | #ifndef MAP_ANON | |
10 | #define MAP_ANON 0 | |
11 | #endif | |
12 | #ifndef MAP_FAILED | |
13 | #define MAP_FAILED ((void *)-1) | |
14 | #endif | |
15 | ||
16 | typedef struct | |
17 | { | |
18 | unsigned char r; | |
19 | unsigned char g; | |
20 | unsigned char b; | |
21 | } __attribute__((packed)) pr58744; | |
22 | ||
23 | typedef struct | |
24 | { | |
25 | unsigned short r; | |
26 | unsigned short g; | |
27 | unsigned short b; | |
28 | } pr36043; | |
29 | ||
30 | typedef struct | |
31 | { | |
32 | int r; | |
33 | int g; | |
34 | int b; | |
35 | } pr65408; | |
36 | ||
37 | __attribute__ ((noinline, noclone)) | |
38 | void | |
39 | f1a (pr58744 x) | |
40 | { | |
41 | if (x.r != 1 || x.g != 2 || x.b != 3) | |
42 | __builtin_abort(); | |
43 | } | |
44 | ||
45 | __attribute__ ((noinline, noclone)) | |
46 | void | |
47 | f1 (pr58744 *x) | |
48 | { | |
49 | f1a (*x); | |
50 | } | |
51 | ||
52 | __attribute__ ((noinline, noclone)) | |
53 | void | |
54 | f2a (pr36043 x) | |
55 | { | |
56 | if (x.r != 1 || x.g != 2 || x.b != 3) | |
57 | __builtin_abort(); | |
58 | } | |
59 | ||
60 | __attribute__ ((noinline, noclone)) | |
61 | void | |
62 | f2 (pr36043 *x) | |
63 | { | |
64 | f2a (*x); | |
65 | } | |
66 | ||
67 | __attribute__ ((noinline, noclone)) | |
68 | void | |
69 | f3a (pr65408 x) | |
70 | { | |
71 | if (x.r != 1 || x.g != 2 || x.b != 3) | |
72 | __builtin_abort(); | |
73 | } | |
74 | ||
75 | __attribute__ ((noinline, noclone)) | |
76 | void | |
77 | f3 (pr65408 *x) | |
78 | { | |
79 | f3a (*x); | |
80 | } | |
81 | ||
82 | int | |
83 | main () | |
84 | { | |
85 | char *p = mmap ((void *) 0, 131072, PROT_READ | PROT_WRITE, | |
86 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
87 | if (p == MAP_FAILED) | |
88 | return 0; | |
89 | char *endp = p + 65536; | |
90 | if (munmap (endp, 65536) < 0) | |
91 | return 0; | |
92 | ||
93 | pr58744 *s1 = (pr58744 *) endp - 1; | |
94 | s1->r = 1; | |
95 | s1->g = 2; | |
96 | s1->b = 3; | |
97 | f1 (s1); | |
98 | ||
99 | pr36043 *s2 = (pr36043 *) endp - 1; | |
100 | s2->r = 1; | |
101 | s2->g = 2; | |
102 | s2->b = 3; | |
103 | f2 (s2); | |
104 | ||
105 | pr65408 *s3 = (pr65408 *) endp - 1; | |
106 | s3->r = 1; | |
107 | s3->g = 2; | |
108 | s3->b = 3; | |
109 | f3 (s3); | |
110 | ||
111 | return 0; | |
112 | } |