[Bug c/27489] New: [4.1/4.2 regression] ICE on broken switch condition

[reichelt at gcc dot gnu dot org]

The following invalid code snippet causes an ICE since GCC 4.1.0:

==========================
void foo()
{
  switch (,) { }
}
==========================

bug.c: In function 'foo':
bug.c:3: error: expected expression before ',' token
bug.c:3: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in c_start_case, at c-typeck.c:7035
Please submit a full bug report, [etc.]


-- 
           Summary: [4.1/4.2 regression] ICE on broken switch condition
           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=27489