[Bug preprocessor/61474] New: ICE (segfault) in preprocessor

["doko at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61474

            Bug ID: 61474
           Summary: ICE (segfault) in preprocessor
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org

seen on any version back to 4.4

$ cat a.c 
#include "b.h"
#include "c.h"
$ cat b.h 
# 1 "c.h" 1
$ gcc -E a.c
# 1 "a.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 1 "<command-line>" 2
# 1 "a.c"
# 1 "b.h" 1
# 1 "c.h" 1
# 1 "b.h" 2
In file included from a.c:1:0:
b.h:1:0: internal compiler error: Segmentation fault
 # 1 "c.h" 1
 ^
Please submit a full bug report,
with preprocessed source if appropriate.


Program received signal SIGSEGV, Segmentation fault.
0x0000000000d990a8 in ?? ()
(gdb) bt
#0  0x0000000000d990a8 in ?? ()
#1  0x0000000000d997e8 in ?? ()
#2  0x0000000000d9a3ab in _cpp_stack_file ()
#3  0x0000000000d9a844 in _cpp_stack_include ()
#4  0x0000000000d92666 in ?? ()
#5  0x0000000000d931e8 in _cpp_handle_directive ()
#6  0x0000000000d9fa1d in _cpp_lex_token ()
#7  0x0000000000da42d0 in ?? ()
#8  0x00000000005d5af8 in preprocess_file(cpp_reader*) ()
#9  0x00000000005d4591 in c_common_init() ()
#10 0x000000000057faee in c_objc_common_init() ()
#11 0x00000000008b4fe7 in toplev_main(int, char**) ()
#12 0x00007ffff69e8ec5 in __libc_start_main (main=0x5526e0 <main>, argc=12,
argv=0x7fffffffe5e8, 
    init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7fffffffe5d8)
    at libc-start.c:287
#13 0x0000000000552915 in _start ()