[Bug c/28418] New: [4.0/4.1/4.2 regression] ICE incrementing temporary variable

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

The following valid code snippet triggers an ICE since GCC 4.0.0
(only with the C frontend):

========================================
struct A { int i; };

void foo()
{
    ((struct A) { 0 }).i += 1;
}
========================================

bug.c: In function 'foo':
bug.c:5: internal compiler error: in gimple_add_tmp_var, at gimplify.c:720
Please submit a full bug report, [etc.]


-- 
           Summary: [4.0/4.1/4.2 regression] ICE incrementing temporary
                    variable
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, 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=28418