[Bug c/26567] ICE in c_lex_with_flags, at c-lex.c:472 with cc1 -C (without -E)

[Bug c/26567] ICE in c_lex_with_flags, at c-lex.c:472 with cc1 -C (without -E)

[belyshev at depni dot sinp.msu.ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26567

Serge Belyshev <belyshev at depni dot sinp.msu.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                URL|                            |http://gcc.gnu.org/ml/gcc-p
                   |                            |atches/2010-04/msg01592.htm
                   |                            |l
      Known to work|                            |4.6.0
         Resolution|                            |FIXED
   Target Milestone|---                         |4.6.0
      Known to fail|                            |4.3.0, 4.4.0, 4.5.0

--- Comment #5 from Serge Belyshev <belyshev at depni dot sinp.msu.ru> 2011-10-30 20:40:08 UTC ---
Was quietly fixed by r160100:

2010-06-01  Arnaud Charlet  <charlet@adacore.com>
            Matthew Gingell  <gingell@adacore.com>

       * doc/invoke.texi: Mention -fdump-ada-spec.
       * tree-dump.c (dump_files): Add ada-spec.
       (FIRST_AUTO_NUMBERED_DUMP): Bump to 8.
       * tree-pass.h (tree_dump_index): Add TDI_ada.
       * gcc.c: Add support for -C without -E and for -fdump-ada-spec.
       (cpp_unique_options): Do not reject -C or -CC when -E isn't present.
       (default_compilers) <@c-header>: Allow -fdump-ada-spec on header files.
       * c-decl.c: Include c-ada-spec.h.
       (collect_source_ref_cb, collect_all_refs, for_each_global_decl): New
       functions.
       (c_write_global_declarations): Add handling of -fdump-ada-spec.
       * c-lex.c (c_lex_with_flags): Add handling of CPP_COMMENT.
       * Makefile.in (C_AND_OBJC_OBJS): Add c-ada-spec.o.
       * c-ada-spec.h, c-ada-spec.c: New files.

[Bug c/26567] New: [4.2 regression] ICE in c_lex_with_flags, at c-lex.c:472 with -C

[belyshev at depni dot sinp dot msu dot ru]

this line of code causes an ICE if compiled with "-C" option:

/**/#define foo


-- 
           Summary: [4.2 regression] ICE in c_lex_with_flags, at c-lex.c:472
                    with -C
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: belyshev at depni dot sinp dot msu dot ru


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26567

[Bug c/26567] ICE in c_lex_with_flags, at c-lex.c:472 with cc1 -C (without -E)

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2006-03-05 16:42 -------
Confirmed, not a regression.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to fail|3.3.3 3.4.0 4.0.0 4.1.0     |3.3.3 3.4.0 4.0.0 4.1.0
                   |4.2.0 3.2.3                 |4.2.0 3.2.3 3.0.4
   Last reconfirmed|0000-00-00 00:00:00         |2006-03-05 16:42:00
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26567

[Bug c/26567] ICE in c_lex_with_flags, at c-lex.c:472 with cc1 -C (without -E)

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-03-05 16:44 -------
This is minor because you have to directly invoke cc1 and you cannot get this
ICE when using the driver.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26567

[Bug c/26567] ICE in c_lex_with_flags, at c-lex.c:472 with cc1 -C (without -E)

[tromey at gcc dot gnu dot org]

------- Comment #3 from tromey at gcc dot gnu dot org  2006-12-27 22:08 -------
FWIW this doesn't entirely look like a bug to me.
The code is reaching a gcc_unreachable() statement,
so this is more along the lines of a properly
functioning internal check.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26567

[Bug c/26567] ICE in c_lex_with_flags, at c-lex.c:472 with cc1 -C (without -E)

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-12-27 22:14 -------
(In reply to comment #3)
> FWIW this doesn't entirely look like a bug to me.
> The code is reaching a gcc_unreachable() statement,
> so this is more along the lines of a properly
> functioning internal check.

But we should really have it error out instead of an ICE really.  It is only a
bug because we get an ICE, if we got an error or ignored the -C, then this
would not be a bug.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26567