[Bug c/55570] New: Undefined variable in alignment compiler directive causes compiler segfault

[david.wetterau at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55570

             Bug #: 55570
           Summary: Undefined variable in alignment compiler directive
                    causes compiler segfault
    Classification: Unclassified
           Product: gcc
           Version: 4.7.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: david.wetterau@gmail.com


Created attachment 28857
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28857
.i file that generates compiler segfault

Version:

$ gcc --version
gcc (GCC) 4.7.2
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.

System Type:

$ uname -a 
Linux david-pc 3.6.8-1-ARCH #1 SMP PREEMPT Mon Nov 26 22:10:40 CET 2012 x86_64
GNU/Linux

Compiler command:
gcc -c test.c -o test

Compiler output:
$ gcc -c test.c -o test
test.c:1:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.

C code: 
char array[16] __attribute__((aligned (SOME_NOT_DEFINED_MACRO)));

int main() {
    return 0;
}

.i file attached.