[Bug c/27420] New: ICE on invalid function definition

[reichelt at gcc dot gnu dot org]

The C frontend ICEs (since at least GCC 2.95.3) on the following
invalid code snippet:

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

bug1.c:2: warning: 'struct A' declared inside parameter list
bug1.c:2: warning: its scope is only this definition or declaration, which is
probably not what you want
bug1.c:2: error: parameter 1 ('a') has incomplete type
bug1.c:2: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in self_promoting_args_p, at c-common.c:3556
Please submit a full bug report, [etc.]


-- 
           Summary: ICE on invalid function definition
           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=27420