Commit graph

1310 commits

Author SHA1 Message Date
ko1
3ccafdb027 * gc.c: rename rb_heap_t::page_length to rb_heap_t::total_pages.
`page_length' is not clear (we may understand with length of
  a page).



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53464 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-08 10:34:14 +00:00
ko1
e5e37c20c9 * gc.c: remove heap_page::heap. This field is only used to recognize
whether a page is in a tomb or not. Instead of this field,
  heap_page:🎏:in_tomb (1 bit field) is added.

  Also type of heap_page::(total|free|final)_slots are changed from
  int to short. 2B is enough for them.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53461 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-08 08:23:58 +00:00
normal
1142de8e2a use id_table for constant tables
valgrind 3.9.0 on x86-64 reports a minor reduction in memory usage
when loading only RubyGems and RDoc by running: ruby -rrdoc -eexit

before: HEAP SUMMARY:
    in use at exit: 2,913,448 bytes in 27,394 blocks
  total heap usage: 48,362 allocs, 20,968 frees, 9,034,621 bytes alloc

after: HEAP SUMMARY:
    in use at exit: 2,880,056 bytes in 26,712 blocks
  total heap usage: 47,791 allocs, 21,079 frees, 9,046,507 bytes alloc

* class.c (struct clone_const_arg): adjust for id_table
  (clone_const): ditto
  (clone_const_i): ditto
  (rb_mod_init_copy): ditto
  (rb_singleton_class_clone_and_attach): ditto
  (rb_include_class_new): ditto
  (include_modules_at): ditto
* constant.h (rb_free_const_table): ditto
* gc.c (free_const_entry_i): ditto
  (rb_free_const_table): ditto
  (obj_memsize_of): ditto
  (mark_const_entry_i): ditto
  (mark_const_tbl): ditto
* internal.h (struct rb_classext_struct): ditto
* object.c (rb_mod_const_set): resolve class name on assignment
* variable.c (const_update): replace with const_tbl_update
  (const_tbl_update): new function
  (fc_i): adjust for id_table
  (find_class_path): ditto
  (autoload_const_set): st_update => const_tbl_update
  (rb_const_remove): adjust for id_table
  (sv_i): ditto
  (rb_local_constants_i): ditto
  (rb_local_constants): ditto
  (rb_mod_const_at): ditto
  (rb_mod_const_set): ditto
  (rb_const_lookup): ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53376 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-29 20:19:14 +00:00
nobu
96ac47c251 gc.c: do not expose internal singleton class
* gc.c (internal_object_p): should not expose singleton classes
  without a metaclass.  based on patches by ko1 and shugo.
  [Bug #11740]
* class.c (rb_singleton_class_object_p): added.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53243 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-22 13:15:58 +00:00
ko1
800607aa7e revert r53228 because this patch breaks rubyspec
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53229 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-21 10:32:33 +00:00
ko1
1bcee938d5 * gc.c (internal_object_p): should not expose singleton classes
without a metaclass.
  [Bug #11740]

* class.c (rb_singleton_class_has_metaclass_p): added.

* test/ruby/test_class.rb: add a test.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53228 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-21 09:40:58 +00:00
ngoto
cef1f23e89 * gc.c: Delete excess semicolon after RUBY_ALIAS_FUNCTION().
Suppress "syntax error:  empty declaration" warnings by
  Oracle Solaris Studio 12.x on Solaris. [Bug #11821]

* hash.c: ditto, after NOINSERT_UPDATE_CALLBACK().


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53129 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-15 14:20:27 +00:00
hsbt
6851be0f0c * compile.c: fix typos.
[ci skip][fix GH-1140] Patch by @jutaz
* dir.c: ditto.
* gc.c: ditto.
* io.c: ditto.
* node.h: ditto.
* thread_pthread.c: ditto.
* vm_insnhelper.c: ditto.
* vsnprintf.c: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53103 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-14 02:51:13 +00:00
ko1
e48adae2b3 * gc.c (gc_mark_stacked_objects): fix typo.
reported by XIE Zhibang. [Bug #11763]




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52994 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-09 05:49:27 +00:00
ko1
2f5b8f0529 * *.c (*_memsize): do not check ptr.
NULL checking is finished Before call of memsize functions.
  See r52979.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52986 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-09 00:38:32 +00:00
nobu
a8fb40db8c gc.c: NULL check at memsize
* gc.c (rb_objspace_data_type_memsize): consider NULL data uses no
  memory without calling dsize function as well as other functions.
  fix SEGV in test/objspace with RUBY_ISEQ_DUMP_DEBUG=to_binary.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-08 17:28:32 +00:00
nobu
bb4d72c51f make local symbols static
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-08 15:07:41 +00:00
odaira
88376e639e * gc.c (rb_raw_obj_info): fix compile errors when USE_RGENGC
is 0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52716 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-22 13:41:08 +00:00
ko1
121b6e064a * gc.c (gc_start): force to invoke GC by GC.start
even if it is GC.disable'd.

* test/ruby/test_gc.rb: add a test.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52672 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-19 12:57:20 +00:00
ko1
d5d997fa11 * gc.c: trivial performance improvements.
name    modified
    vm1_gc_short_lived*                1.015
    vm1_gc_short_with_complex_long*    1.014
    vm1_gc_short_with_long*            1.000
    vm1_gc_short_with_symbol*          1.016
    vm1_gc_wb_ary*                     1.002
    vm1_gc_wb_ary_promoted*            0.996
    vm1_gc_wb_obj*                     1.045
    vm1_gc_wb_obj_promoted*            1.014
    vm3_gc                             1.021

* gc.c (gc_writebarrier_generational): reorder parameters to optimize
  register passing function call.

* gc.c (gc_writebarrier_incremental): ditto.

* gc.c (rb_gc_writebarrier): remove LIKELY().
  LIKELY() seems to move related functions not better places.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-19 11:13:27 +00:00
nobu
8a3423d38b gc.c: use BUILTIN_TYPE
* gc.c (rb_raw_obj_info): BUILTIN_TYPE works fro non-special_const
  objects.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52660 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-18 23:33:08 +00:00
ko1
e2f0af5740 * gc.c (rb_raw_obj_info): fix trivial issues.
* support SPECIAL_CONSTs.
  * fix IMEMO/ment outputs.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52635 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-18 08:08:09 +00:00
nobu
9d64a54209 internal.h: RUBY_DTRACE_HOOK
* internal.h (RUBY_DTRACE_HOOK): extract from
  RUBY_DTRACE_CREATE_HOOK for other type hooks.

* gc.c (RUBY_DTRACE_GC_HOOK): ditto.

* parse.y (RUBY_DTRACE_PARSE_HOOK): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52399 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-31 01:02:29 +00:00
nobu
1546ffed49 use rb_source_loc and rb_source_location
* error.c, eval.c, eval_error.c, gc.c, variable.c, vm.c,
  vm_eval.c, vm_trace.c: use rb_source_loc/rb_source_location
  instead of combination of rb_sourcefile/rb_sourcefilename and
  rb_sourceline.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52398 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-31 01:02:26 +00:00
ko1
a96ae767ac * gc.c (newobj_slowpath): do not need to use flags hack (commit miss).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52392 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-30 10:30:47 +00:00
ko1
e3e5d634f0 * gc.c (heap_get_freeobj_from_next_freepage): not so UNLIKELY.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-30 10:09:50 +00:00
ko1
b872ad5861 * gc.c (newobj_slowpath): reduce 1 parameter to use only registers
for performance.

  On my laptop, 'N.times{x = []}' (where N = 29_000_000) is
  1.86 sec -> 1.74 sec.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52389 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-30 09:33:08 +00:00
ko1
bce116617a * gc.c (gc_mark_ptr): specify NOINLINE so that gc_mark() can return
immediately when obj is not a markable object.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 09:48:38 +00:00
nobu
7f7dcb6178 gc.c: separate event hook call from newobj_init
* gc.c (newobj_init): separate event hook call and remove the
  argument for it.

* gc.c (newobj_slowpath): call event hook after initialized the
  new object.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52348 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 08:00:01 +00:00
ko1
5869f9a3ba * gc.c (rb_imemo_new): should not pass FL_WB_PROTECTED flag.
* gc.c (rb_wb_protected_newobj_of): add more assertions.

* gc.c (rb_wb_unprotected_newobj_of): ditto.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52347 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 07:43:48 +00:00
ko1
ffa87b4057 * gc.c: introduce rb_wb_unprotected_newobj_of() and
rb_wb_protected_newobj_of(), pass the WB_PROTECTED
  information explicitly.

* internal.h: use introduced functions by NEWOBJ_OF().
  `flag' is immediate value, so that C compilers can
  solve them at compile time.

* include/ruby/ruby.h: add a commnent about that.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52346 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 07:26:44 +00:00
nobu
017ac002c5 gc.c: fix UNLIKELY usage
* gc.c (gc_event_hook_needed_p): UNLIKELY makes no sense for
  boolean flag value.

* gc.c (gc_event_hook, newobj_init): use in conditions instead.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52345 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 07:21:24 +00:00
ko1
a3e88485b1 * gc.c: add rb_objspace:🎏:has_hook to represent hook availability.
* gc.c: add gc_event_hook_available_p(objspace) to check that flag.

* gc.c (newobj_of): use gc_event_hook_available_p() instead of
  checking gc_event_hook_needed_p(objspace, RUBY_INTERNAL_EVENT_NEWOBJ).
  for performance.

* gc.c (newobj_init): add UNLIKELY() for FL_WB_PROTECTED flag.

* gc.c (newobj_init): change parameters order (trivial change).




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 06:17:07 +00:00
ko1
1be5cb6371 * gc.c (gc_mark_ptr): remove debug code for #11244.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52339 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 05:32:42 +00:00
ko1
56eee285be revert r52336 (commit miss)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52337 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 05:30:50 +00:00
ko1
106f033b89 * gc.c (gc_mark_ptr): remove debug code for #11244.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52336 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29 05:10:06 +00:00
kosaki
3a48e12607 * numeric.c: Good-by Borland-C.
* include/ruby/backward/rubyio.h: ditto.
* include/ruby/backward/st.h: ditto.
* include/ruby/backward/util.h: ditto.
* include/ruby/backward/rubysig.h: ditto.
* include/ruby/backward/classext.h: ditto.
* dln.c: ditto.
* gc.c: ditto.
* win32/resource.rb: ditto.
* win32/dir.h: ditto.
* ext/tk/tcltklib.c: ditto.
* NEWS: announce that Borland-C is no longer supported.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52168 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-18 02:10:34 +00:00
kosaki
e91baf5634 * dln.c: simplify #ifdef. _WIN32 and __CYGWIN__ are exclusive.
see include/ruby/defines.h
* gc.c: ditto.
* ext/sdbm/_sdbm.c: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52167 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-18 02:08:56 +00:00
ko1
f6e57af98d * gc.c (newobj_of_slowpass): fix typo (pass -> path).
Pointed out by Yukihiro Matsumoto  <matz@ruby-lang.org>.
* gc.c (newobj_of_...): `of' is unnecessary.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52102 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-10 18:49:05 +00:00
ko1
e8ba0b7b04 * import a github pull request
https://github.com/ruby/ruby/pull/1050
  by Kazuho Oku <kazuho@natadeco.co>.
  This pull request has the following commits.
* gc.c: reduce # of args to 6 (max. of register args on x86-64) so
  that the `newobj_of_slowpass` can be called via TCO.
* gc.c (newobj_of), string.c (str_duplicate): for performance,
  the hot functions must be inlined.
* gc.c: for performance, preceding arguments of `.*newobj_of.*`
  must be same, so that the arg registers can be reused in case of
  TCO.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52099 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-10 06:34:24 +00:00
ko1
e2cabc22be * gc.c (newobj_of): divide fast path and slow path
to avoid register savings for fast path.
  This idea is given by Kazuho Oku <kazuho@natadeco.co>.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-07 11:18:17 +00:00
ko1
31ee824ef4 * gc.h, gc.c: introduce new debug function rb_obj_info_dump(VALUE obj)
which prints the result of rb_raw_obj_info(..., obj).



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52066 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-06 16:22:54 +00:00
nobu
abbd388431 gc.c: define objspace functions always
* gc.c (rb_objspace_alloc, rb_objspace_free): define always
  regardless ENABLE_VM_OBJSPACE, and free heap pages.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51867 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-09-15 10:38:58 +00:00
nobu
2b2c691188 vm_core.h: objspace always
* vm_core.h (rb_vm_struct): define objspace always regardless
  ENABLE_VM_OBJSPACE.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51782 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-09-07 07:50:11 +00:00
ko1
5f6dedda01 * gc.c (rb_raw_obj_info): iseq->body->location.first_lineno is Fixnum.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51747 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-09-03 11:30:03 +00:00
ko1
e25f9ceddf * gc.c (rb_raw_obj_info): should support IMEMO/iseq.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51745 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-09-03 08:51:05 +00:00
ktsj
79eb53dc46 * gc.c (gc_mark_children): check if RCLASS_EXT is valid
before marking. This fixes the following test failure
  introduced in r51126:

    make test-all TESTOPTS='--gc-stress ruby/test_refinement.rb'

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51591 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-16 08:25:29 +00:00
ko1
408fa5e687 * class.c, gc.c vm.c: use ID_TABLE_* instead of ST_*
(such as ST_CONTINUE) for enum rb_id_table_iterator_result.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51544 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-12 08:59:27 +00:00
ko1
c35ff11ae5 * id_table.h: introduce ID key table.
[Feature #11420]
  This table only manage ID->VALUE table to reduce overhead of st.
  Some functions prefixed rb_id_table_* are provided.
* id_table.c: implement rb_id_table_*.
  There are several algorithms to implement it.
  Now, there are roughly 4 types:
    * st
    * array
    * hash (implemented by  Yura Sokolov)
    * mix of array and hash
  The macro ID_TABLE_IMPL can choose implementation.
  You can see detailes about them at the head of id_table.c.
  At the default, I choose 34 (mix of list and hash).
  This is not final decision.
  Please report your suitable parameters or
  your data structure.
  * symbol.c: introduce rb_id_serial_t and rb_id_to_serial()
    to represent ID by serial number.
  * internal.h: use id_table for method tables.
  * class.c, gc.c, marshal.c, vm.c, vm_method.c: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51541 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-12 08:43:55 +00:00
nobu
471e3a3016 ruby.h: check integer overflow
* include/ruby/ruby.h (ALLOCV_N): check integer overflow, as well
  as ruby_xmalloc2.  pointed out by Paul <pawlkt AT gmail.com>.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51533 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-11 06:22:34 +00:00
nobu
95c84eac49 gc.c: move tmp buffer functions
* gc.c (rb_alloc_tmp_buffer, rb_free_tmp_buffer): move from
  node.c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-06 01:56:37 +00:00
nobu
ec10c033a7 ruby_atomic.h: atomic VALUE operations
* ruby_atomic.h (ATOMIC_VALUE_EXCHANGE, ATOMIC_VALUE_CAS): add
  atomic operations for VALUE.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-06 01:44:03 +00:00
hsbt
c02ffd9a8f * gc.c: document argument passed to finalizer proc.
[fix GH-976][ci skip] Patch by @alexdowad

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51418 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-29 01:44:49 +00:00
ko1
e4198a73d4 * make rb_iseq_t T_IMEMO object (type is imemo_iseq).
All contents of previous rb_iseq_t is in rb_iseq_t::body.
  Remove rb_iseq_t::self because rb_iseq_t is an object.
  RubyVM::InstructionSequence is wrapper object points T_IMEMO/iseq.
  So RubyVM::ISeq.of(something) method returns different wrapper
  objects but they point the same T_IMEMO/iseq object.
  This patch is big, but most of difference is replacement of
  iseq->xxx to iseq->body->xxx.
  (previous) rb_iseq_t::compile_data is also located to
  rb_iseq_t::compile_data.
  It was moved from rb_iseq_body::compile_data.
  Now rb_iseq_t has empty two pointers.
  I will split rb_iseq_body data into static data and dynamic data.
* compile.c: rename some functions/macros.
  Now, we don't need to separate iseq and iseqval (only VALUE).
* eval.c (ruby_exec_internal): `n' is rb_iseq_t (T_IMEMO/iseq).
* ext/objspace/objspace.c (count_imemo_objects): count T_IMEMO/iseq.
* gc.c: check T_IMEMO/iseq.
* internal.h: add imemo_type::imemo_iseq.
* iseq.c: define RubyVM::InstructionSequnce as T_OBJECT.
  Methods are implemented by functions named iseqw_....
* load.c (rb_load_internal0): rb_iseq_new_top() returns
  rb_iseq_t (T_IMEMO/iesq).
* method.h (rb_add_method_iseq): accept rb_iseq_t (T_IMEMO/iseq).
* vm_core.h (GetISeqPtr): removed because it is not T_DATA now.
* vm_core.h (struct rb_iseq_body): remove padding for
  [Bug #10037][ruby-core:63721].



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51327 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-21 22:52:59 +00:00
ko1
46215c1e90 * gc.c (internal_object_p): Now a singleton classes appear by
ObjectSpace.each_object. [Bug #11360]
* test/ruby/test_objectspace.rb: add a test about it.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51320 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-21 19:04:56 +00:00