[Bug c/28286] New: [4.0/4.1/4.2 regression] ICE with invalid value in #pragma pack

["reichelt at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The following invalid code snippet triggers an ICE since GCC 3.3:

=============================================
#pragma pack(0..)
=============================================

bug.c:1:14: error: too many decimal points in number
bug.c:1: internal compiler error: tree check: expected integer_cst, have
error_mark in handle_pragma_pack, at c-pragma.c:163
Please submit a full bug report, [etc.]

This happens with the C and C++ frontend.


-- 
           Summary: [4.0/4.1/4.2 regression] ICE with invalid value in
                    #pragma pack
           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=28286