------- Comment #13 from rguenth at gcc dot gnu dot org 2009-03-31 11:31
-------
Reduced testcase:
struct re_pattern_buffer {
unsigned char *buffer;
unsigned long int allocated;
};
void byte_regex_compile (struct re_pattern_buffer *bufp,
unsigned char *begalt, unsigned char *b)
{
unsigned char *pfrom;
unsigned char *pto;
while ((unsigned long) (b - bufp->buffer + 3) > bufp->allocated)
{
unsigned char *old_buffer = bufp->buffer;
bufp->allocated <<= 1;
if (old_buffer != bufp->buffer)
{
int incr = bufp->buffer - old_buffer;
b += incr;
}
}
pfrom = b;
pto = b + 3;
while (pfrom != begalt)
*--pto = *--pfrom;
}
./cc1 -quiet -O2 regex.3.3.i -Wall
regex.3.3.i: In function 'byte_regex_compile':
regex.3.3.i:5: internal compiler error: in check_loop_closed_ssa_use, at
tree-ssa-loop-manip.c:420
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37221
