[Bug middle-end/41734] ICE in cgraph_mark_functions_to_output, at cgraphunit.c:1137 with -fwhopr

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-10-16 23:02 -------
util.3.i
--------
typedef unsigned int size_t;
extern struct _IO_FILE *stderr;
typedef unsigned char uch;
extern uch inbuf[];
unsigned insize;
char *progname;
extern void read_error (void);
int fill_inbuf(int eof_ok)
{
  if (insize == 0) 
    {
      if (eof_ok)
        return -1;
      read_error();
    }
  return inbuf[0];
}
void read_error(void)
{
  __builtin_fprintf(stderr, "\n%s: ", progname);
}

gzip.3.i
--------
typedef unsigned char uch;
uch inbuf[8];
extern unsigned insize;
unsigned inptr; 
int to_stdout = 0;
int force = 0;
extern int fill_inbuf (int);
int get_method(int in)
{
  char magic[2];
  if (force && to_stdout)
    magic[0] = (char)(inptr < insize ? inbuf[inptr++] : fill_inbuf(1));
  else
    magic[1] = (char)(inptr < insize ? inbuf[inptr++] : fill_inbuf(0));
}
int main()
{
  return 0;
}


$ ./xgcc -B. util.3.i gzip.3.i -O3 -fwhopr read_error/5(-1) @0xb7d33200 (clone
of read_error/4) availability:not_available (15 after inlining) (6 after
inlining) needed reachable body externally_visible finalized
  called by: fill_inbuf/2 (0.00 per call) 
  calls: 
lto1: internal compiler error: failed to reclaim unneeded function
Please submit a full bug report,
with preprocessed source if appropriate.

or w/o checking

> /space/rguenther/install/lto/bin/gcc -o gzip ~/util.3.i ~/gzip.3.i  -O3 
> -fwhopr
lto1: internal compiler error: in cgraph_mark_functions_to_output, at
cgraphunit.c:1137
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-16 23:02:04
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41734