|
111
|
1 /* { dg-do compile } */
|
|
|
2 /* { dg-options "-O -w" } */
|
|
|
3
|
|
|
4 /* This code snippet from glibc 2.3.5 was causing an ICE during
|
|
|
5 optimization because we were failing to update the SSA form for
|
|
|
6 stale name tags. These are tags that are associated with SSA pointers
|
|
|
7 that have been removed from the IL. This was causing the SSA
|
|
|
8 verifier to fail before we had a chance to run the cleanup pass that
|
|
|
9 finally removes all the remaining PHI nodes for the stale name tag. */
|
|
|
10 struct _IO_wide_data
|
|
|
11 {
|
|
|
12 };
|
|
|
13 struct _IO_FILE {
|
|
|
14 };
|
|
|
15 typedef struct _IO_FILE _IO_FILE;
|
|
|
16 struct _IO_jump_t
|
|
|
17 {
|
|
|
18 };
|
|
|
19 struct _IO_FILE_plus
|
|
|
20 {
|
|
|
21 _IO_FILE file;
|
|
|
22 };
|
|
|
23 extern const struct _IO_jump_t _IO_file_jumps_maybe_mmap ;
|
|
|
24 extern const struct _IO_jump_t _IO_wfile_jumps;
|
|
|
25 extern const struct _IO_jump_t _IO_wfile_jumps_maybe_mmap ;
|
|
|
26
|
|
|
27 _IO_new_fdopen (fd, mode)
|
|
|
28 const char *mode;
|
|
|
29 {
|
|
|
30 int read_write;
|
|
|
31 int posix_mode = 0;
|
|
|
32 struct locked_FILE
|
|
|
33 {
|
|
|
34 struct _IO_FILE_plus fp;
|
|
|
35 struct _IO_wide_data wd;
|
|
|
36 } *new_f;
|
|
|
37 int fd_flags;
|
|
|
38 int use_mmap = 0;
|
|
|
39 {
|
|
|
40 }
|
|
|
41 {
|
|
|
42 switch (*++mode)
|
|
|
43 {
|
|
|
44 case '\0':
|
|
|
45 use_mmap = 1;
|
|
|
46 }
|
|
|
47 }
|
|
|
48 if (((fd_flags & 0003) == 00 && !(read_write & 8))
|
|
|
49 || ((fd_flags & 0003) == 01 && !(read_write & 4)))
|
|
|
50 {
|
|
|
51 }
|
|
|
52 if ((posix_mode & 02000) && !(fd_flags & 02000))
|
|
|
53 return ((void *)0);
|
|
|
54 _IO_no_init (&new_f->fp.file, 0, 0, &new_f->wd,
|
|
|
55 (use_mmap && (read_write & 8))
|
|
|
56 ? &_IO_wfile_jumps_maybe_mmap :
|
|
|
57 &_IO_wfile_jumps);
|
|
|
58 (use_mmap && (read_write & 8)) ? &_IO_file_jumps_maybe_mmap :
|
|
|
59 _IO_file_init (&new_f->fp);
|
|
|
60 }
|
