[Bug c/27421] New: [4.0/4.1/4.2 regression] ICE with invalid array in struct

[reichelt at gcc dot gnu dot org]

The C frontend ICEs on the following invalid code snippet:

==============================
struct A
{
    int i;
    void x[1];
};

void foo(struct A a) {}
==============================

bug.c:4: error: declaration of 'x' as array of voids
bug.c: In function 'foo':
bug.c:7: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in classify_argument, at config/i386/i386.c:2979
Please submit a full bug report, [etc.]

The ICE happens since GCC 3.1 and in GCC 2.95.3.
In GCC 3.0.x we did not ICE.


-- 
           Summary: [4.0/4.1/4.2 regression] ICE with invalid array in
                    struct
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27421