[Bug tree-optimization/54098] New: [tree-vrp] ICE on valid code

["zhroma at newmail dot ru" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54098

             Bug #: 54098
           Summary: [tree-vrp] ICE on valid code
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zhroma@newmail.ru


Created attachment 27876
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27876
Preprocessed minimized testcase.

gcc 4.8 revision 188728 and later segfaults on 64bit Linux while compiling the
attached code with -march=nocona.

$ gcc -Wall -O2 -march=nocona -c foo-small.c
foo-small.c: In function 'pbus_size_mem':
foo-small.c:35:6: internal compiler error: Segmentation fault
 void pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long
type, unsigned long long min_size, unsigned long long add_size, void
*realloc_head) {
      ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

$ gcc --version
gcc (GCC) 4.8.0 20120618 (experimental)
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

gcc configured with "--disable-bootstrap --enable-languages=c,c++"
4.6.3 works ok. 4.8 trunk up to revision 188727 also works ok.