Regressions on trunk at revision 202481 vs revision 202339

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/pr48235.c (internal compiler error)
FAIL: gcc.dg/pr48235.c (test for excess errors)
FAIL: libvtv.cc/bb_tests.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/bb_tests.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/const_vtable.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/const_vtable.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/dataentry.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/dataentry.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/dup_name.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/dup_name.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/environment.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/environment.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/mul_inh.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/mul_inh.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/nested_vcall_test.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/nested_vcall_test.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/povray-derived.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/povray-derived.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/register_set_pair.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/register_set_pair.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/register_set_pair_inserts.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/register_set_pair_inserts.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/template-list-iostream.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/template-list-iostream.cc -O0 -fvtable-verify=std execution test
FAIL: libvtv.cc/template-list-iostream.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/template-list-iostream.cc -O2 -fvtable-verify=std execution test
FAIL: libvtv.cc/template-list.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/template-list.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/template-list2.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/template-list2.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/test1.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/test1.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/thunk.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/thunk.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/thunk_vtable_map_attack.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/thunk_vtable_map_attack.cc -O0 -fvtable-verify=std execution test
FAIL: libvtv.cc/thunk_vtable_map_attack.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/thunk_vtable_map_attack.cc -O2 -fvtable-verify=std execution test
FAIL: libvtv.cc/v8-test-2.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/v8-test-2.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/virtfunc-test.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/virtfunc-test.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/virtual_inheritance.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/virtual_inheritance.cc -O2 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/xlan-test.cc -O0 -fvtable-verify=preinit (test for excess errors)
FAIL: libvtv.cc/xlan-test.cc -O2 -fvtable-verify=preinit (test for excess errors)

New passes:
FAIL: g++.dg/template/cond2.C -std=gnu++11  (test for warnings, line 9)
FAIL: g++.dg/template/cond2.C -std=gnu++98  (test for warnings, line 9)
FAIL: g++.dg/torture/covariant-1.C  -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/torture/covariant-1.C  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.target/i386/pr55342.c scan-assembler-not notb