[Bug debug/32563] New: [4.2/4.3 regression] ICE on pointer arithmetic

[reichelt at gcc dot gnu dot org]

The following valid code snippet triggers an ICE since GCC 4.2.0
(when compiled with "g++ -g"):

=============================================
struct A
{
  char c[1];
} a;

const int i = (int)&a.c[0] - 1;
=============================================

bug.cc:5: internal compiler error: in loc_descriptor, at dwarf2out.c:9181
Please submit a full bug report, [etc.]

When compiled as C code the snippet compiles fine.


-- 
           Summary: [4.2/4.3 regression] ICE on pointer arithmetic
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, monitored
          Severity: normal
          Priority: P3
         Component: debug
        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=32563