Regressions on trunk at revision 266593 vs revision 266566

[H.J. Lu (x32)]

New failures:
FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2

New passes:
FAIL: experimental/filesystem/iterators/directory_iterator.cc (test for excess errors)
FAIL: experimental/filesystem/iterators/pop.cc (test for excess errors)
FAIL: experimental/filesystem/iterators/recursive_directory_iterator.cc (test for excess errors)
FAIL: experimental/filesystem/operations/absolute.cc (test for excess errors)
FAIL: experimental/filesystem/operations/canonical.cc (test for excess errors)
FAIL: experimental/filesystem/operations/copy.cc (test for excess errors)
FAIL: experimental/filesystem/operations/copy_file.cc (test for excess errors)
FAIL: experimental/filesystem/operations/create_directories.cc (test for excess errors)
FAIL: experimental/filesystem/operations/create_directory.cc (test for excess errors)
FAIL: experimental/filesystem/operations/create_symlink.cc (test for excess errors)
FAIL: experimental/filesystem/operations/current_path.cc (test for excess errors)
FAIL: experimental/filesystem/operations/equivalent.cc (test for excess errors)
FAIL: experimental/filesystem/operations/exists.cc (test for excess errors)
FAIL: experimental/filesystem/operations/file_size.cc (test for excess errors)
FAIL: experimental/filesystem/operations/is_empty.cc (test for excess errors)
FAIL: experimental/filesystem/operations/last_write_time.cc (test for excess errors)
FAIL: experimental/filesystem/operations/permissions.cc (test for excess errors)
FAIL: experimental/filesystem/operations/read_symlink.cc (test for excess errors)
FAIL: experimental/filesystem/operations/remove_all.cc (test for excess errors)
FAIL: experimental/filesystem/operations/remove.cc (test for excess errors)
FAIL: experimental/filesystem/operations/space.cc (test for excess errors)
FAIL: experimental/filesystem/operations/status.cc (test for excess errors)
FAIL: experimental/filesystem/operations/temp_directory_path.cc (test for excess errors)
FAIL: experimental/filesystem/path/assign/assign.cc (test for excess errors)
FAIL: experimental/filesystem/path/assign/copy.cc (test for excess errors)
FAIL: experimental/filesystem/path/concat/strings.cc (test for excess errors)
FAIL: experimental/filesystem/path/construct/copy.cc (test for excess errors)
FAIL: experimental/filesystem/path/construct/locale.cc (test for excess errors)
FAIL: experimental/filesystem/path/construct/range.cc (test for excess errors)
FAIL: experimental/filesystem/path/construct/string_view.cc (test for excess errors)
FAIL: experimental/filesystem/path/modifiers/clear.cc (test for excess errors)
FAIL: experimental/filesystem/path/modifiers/swap.cc (test for excess errors)
FAIL: experimental/filesystem/path/native/string.cc (test for excess errors)