[Bug c/54321] New: ice in tree_low_cst at -O3

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54321

             Bug #: 54321
           Summary: ice in tree_low_cst at -O3
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: dcb...@hotmail.com


Created attachment 28050
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28050
C source code

I just tried to compile the package fcron-3.0.6-5
on gcc-4.8 trunk dated 20120819 on an AMD x86_64 box.

The compiler said

fileconf.c: In function 'read_period':
fileconf.c:1317:1: internal compiler error: in tree_low_cst, at tree.c:6546
 read_period(char *ptr, cf_t *cf)
 ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached. Flag -O3 required.