This is a regression from 4.2.0 which happens on both the branch and the trunk.
#2 0x000000000100363f in htab_clear_slot (htab=0x1649410, slot=0x168c1c0) at /space/rguenther/src/svn/trunk/libiberty/hashtab.c:722 #3 0x000000000052c797 in fixed_type_or_null (instance=0x2ae177ead4d0, nonnull=0x7fff359ca13c, cdtorp=0x7fff359ca0ac) at /space/rguenther/src/svn/trunk/gcc/cp/class.c:5380 #4 0x000000000052b643 in fixed_type_or_null (instance=0x2ae177b61f00, nonnull=0x7fff359ca13c, cdtorp=0x7fff359ca0ac) at /space/rguenther/src/svn/trunk/gcc/cp/class.c:5297 #5 0x000000000052c83d in resolves_to_fixed_type_p (instance=0x2ae177b61f00, nonnull=0x7fff359ca13c) at /space/rguenther/src/svn/trunk/gcc/cp/class.c:5412 #6 0x0000000000500e36 in build_base_path (code=PLUS_EXPR, expr=0x2ae177b61f00, binfo=0x2ae1778ede80, nonnull=1) at /space/rguenther/src/svn/trunk/gcc/cp/class.c:291 #7 0x00000000005a27c2 in build_class_member_access_expr ( object=0x2ae177b61ec0, member=0x2ae176f46240, access_path=0x2ae177b2d180, preserve_reference=0 '\0') at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:1876 #8 0x00000000005a49a5 in finish_class_member_access_expr ( object=0x2ae177b61ec0, name=0x2ae175c81c60, template_p=0 '\0') at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:2236 ... testcase (from cln) is still reducing. -- Summary: [4.2/4.3 Regression] ICE in htab_clear_slot at libiberty/hashtab.c:722 Product: gcc Version: 4.2.1 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: critical Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32609