[Bug c/40204] New: segfault with bitfields in structs

[gcc-bugzilla at gcc dot gnu dot org]

        Compiling the following (nonsense but valid) code triggers an internal
        compiler error.

Environment:
System: Linux thanatos 2.6.26-2-686-bigmem #1 SMP Thu Mar 26 02:03:34 UTC 2009 
i686 GNU/Linux

How-To-Repeat:
        Compile the following:

        -- snip --
        struct s {
            unsigned int a : 4;
            unsigned int b : 28;
        };

        void f()
        {
            char c;
            struct s s;
            s.a = (c >> 4) & ~(1<<4);
        }
        -- snip --

        $ gcc -Wall -c bug.c 
        gcc: Internal error: Segmentation fault (program cc1)
        Please submit a full bug report.
        See <file:///usr/share/doc/gcc-4.3/README.Bugs> for instructions.


------- Comment #1 from michael at walle dot cc  2009-05-19 22:16 -------
Fix:
        not known


-- 
           Summary: segfault with bitfields in structs
           Product: gcc
           Version: 3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: michael at walle dot cc


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40204