Граф коммитов

120 Коммитов

Автор SHA1 Сообщение Дата
Yusuke Endoh 156fb72d70 vm_args.c (rb_warn_check): Use iseq_unique_id instead of its pointer
(This is the second try of 036bc1da6c6c9b0fa9b7f5968d897a9554dd770e.)

If iseq is GC'ed, the pointer of iseq may be reused, which may hide a
deprecation warning of keyword argument change.

http://ci.rvm.jp/results/trunk-test1@phosphorus-docker/2474221

```
1) Failure:
TestKeywordArguments#test_explicit_super_kwsplat [/tmp/ruby/v2/src/trunk-test1/test/ruby/test_keyword.rb:549]:
--- expected
+++ actual
@@ -1 +1 @@
-/The keyword argument is passed as the last hash parameter.* for `m'/m
+""
```

This change ad-hocly adds iseq_unique_id for each iseq, and use it
instead of iseq pointer.  This covers the case where caller is GC'ed.
Still, the case where callee is GC'ed, is not covered.

But anyway, it is very rare that iseq is GC'ed.  Even when it occurs, it
just hides some warnings.  It's no big deal.
2019-12-09 15:22:48 +09:00
卜部昌平 0e8219f591 make functions static
These functions are used from within a compilation unit so we can
make them static, for better binary size.  This changeset reduces
the size of generated ruby binary from 26,590,128 bytes to
26,584,472 bytes on my macihne.
2019-11-19 12:36:19 +09:00
卜部昌平 c9ffe751d1 delete unused functions
Looking at the list of symbols inside of libruby-static.a, I found
hundreds of functions that are defined, but used from nowhere.

There can be reasons for each of them (e.g. some functions are
specific to some platform, some are useful when debugging, etc).
However it seems the functions deleted here exist for no reason.

This changeset reduces the size of ruby binary from 26,671,456
bytes to 26,592,864 bytes on my machine.
2019-11-14 20:35:48 +09:00
Dylan Thacker-Smith ac112f2b5d Avoid top-level search for nested constant reference from nil in defined?
Fixes [Bug #16332]

Constant access was changed to no longer allow top-level constant access
through `nil`, but `defined?` wasn't changed at the same time to stay
consistent.

Use a separate defined type to distinguish between a constant
referenced from the current lexical scope and one referenced from
another namespace.
2019-11-13 15:36:58 +09:00
Koichi Sasada 83c563cfa4 cstr -> bytes
rb_iseq_ibf_load_cstr() accepts bytes, but not NUL-terminate
C string. To make it clear, rename it to _bytes.
2019-11-08 16:16:25 +09:00
Koichi Sasada 46acd0075d support builtin features with Ruby and C.
Support loading builtin features written in Ruby, which implement
with C builtin functions.
[Feature #16254]

Several features:

(1) Load .rb file at boottime with native binary.

Now, prelude.rb is loaded at boottime. However, this file is contained
into the interpreter as a text format and we need to compile it.
This patch contains a feature to load from binary format.

(2) __builtin_func() in Ruby call func() written in C.

In Ruby file, we can write `__builtin_func()` like method call.
However this is not a method call, but special syntax to call
a function `func()` written in C. C functions should be defined
in a file (same compile unit) which load this .rb file.

Functions (`func` in above example) should be defined with
  (a) 1st parameter: rb_execution_context_t *ec
  (b) rest parameters (0 to 15).
  (c) VALUE return type.
This is very similar requirements for functions used by
rb_define_method(), however `rb_execution_context_t *ec`
is new requirement.

(3) automatic C code generation from .rb files.

tool/mk_builtin_loader.rb creates a C code to load .rb files
needed by miniruby and ruby command. This script is run by
BASERUBY, so *.rb should be written in BASERUBY compatbile
syntax. This script load a .rb file and find all of __builtin_
prefix method calls, and generate a part of C code to export
functions.

tool/mk_builtin_binary.rb creates a C code which contains
binary compiled Ruby files needed by ruby command.
2019-11-08 09:09:29 +09:00
卜部昌平 7e0ae1698d avoid overflow in integer multiplication
This changeset basically replaces `ruby_xmalloc(x * y)` into
`ruby_xmalloc2(x, y)`.  Some convenient functions are also
provided for instance `rb_xmalloc_mul_add(x, y, z)` which allocates
x * y + z byes.
2019-10-09 12:12:28 +09:00
Aaron Patterson 9b6460cacc
Remove mark array
We don't use this array anymore so we can remove it
2019-09-26 13:56:42 -07:00
Aaron Patterson 50fadefb7e
Scan the ISEQ arena for markables and mark them
This commit scans the ISEQ arena for objects that can be marked and
marks them.  This should make the mark array unnecessary.
2019-09-26 13:56:41 -07:00
Aaron Patterson 3cd8f76f7f
Introduce a secondary arena
We'll scan the secondary arena during GC mark. So, we should only
allocate "markable" instruction linked list nodes out of the secondary
arena.
2019-09-26 13:56:41 -07:00
Takashi Kokubun beaabd2308
Unify SUPPORT_JOKE and OPT_SUPPORT_JOKE
for simplicity and consistency.

Now SUPPORT_JOKE needs to be prefixed with OPT_ to make the config
visible in `RubyVM::VmOptsH`, and the inconsistency was introduced.

As it has never been available for override in configure (no #ifndef
guard), it should be fine to rename the config.
2019-09-03 21:12:31 +09:00
卜部昌平 b8fd2e83e7 decouple compile.c usage of imemo_ifunc
After 5e86b005c0, I now think ANYARGS is
dangerous and should be extinct.  This commit deletes ANYARGS from
struct vm_ifunc, but in doing so we also have to decouple the usage
of this struct in compile.c, which (I think) is an abuse of ANYARGS.
2019-08-27 15:52:26 +09:00
tenderlove 91793b8967 Add `GC.compact` again.
🙏

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67620 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-20 01:19:47 +00:00
tenderlove 744e5df715 Reverting compaction for now
For some reason symbols (or classes) are being overridden in trunk

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-17 09:41:41 +00:00
tenderlove 3c55b643ae Adding `GC.compact` and compacting GC support.
This commit adds the new method `GC.compact` and compacting GC support.
Please see this issue for caveats:

  https://bugs.ruby-lang.org/issues/15626

[Feature #15626]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67576 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-17 03:17:25 +00:00
nobu 47c82df27f Share the exception local ID table
[Fix GH-2115]

From: Lourens Naudé <lourens@bearmetal.eu>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-11 10:36:36 +00:00
kazu 25c1fd3b90 Reverting all commits from r67479 to r67496 because of CI failures
Because hard to specify commits related to r67479 only.
So please commit again.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67499 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-10 09:15:21 +00:00
tenderlove 3ef4db15e9 Adding `GC.compact` and compacting GC support.
This commit adds the new method `GC.compact` and compacting GC support.
Please see this issue for caveats:

  https://bugs.ruby-lang.org/issues/15626

[Feature #15626]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-09 20:32:04 +00:00
nobu 6f015efc64 iseq.h: Remove dead members
* iseq.h (struct iseq_compile_data): Remove the dead ensure_node
  and for_iseq members.

[Fix GH-2108]

From: Lourens Naudé <lourens@bearmetal.eu>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67437 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2019-04-04 05:26:11 +00:00
ko1 5ac990e83e `script_compiled` TracePoint event [Feature #15287]
* vm_trace.c: add `script_compiled` event. This event invoked
  after script compiling and before evaluating compiled script.
  Also the following methods are added:

  `TracePoint#compiled_instruction_sequence` method to get compiled
  `RubyVM::InstructionSequence` instance.

  `TracePoint#compiled_eval_script` method to get compiled script (String)
  by *eval methods (return nil if compiling by file).

* vm_trace.c (tracepoint_attr_raised_exception):


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66249 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-06 13:42:32 +00:00
ko1 d3aad15922 Return same ISeq object for one src.
* iseq.c: before this patch, RubyVM::InstructionSequence.of(src) (ISeq in
  short) returns different ISeq (wrapper) objects point to one ISeq internal
  object. This patch changes this behavior to cache created ISeq (wrapper)
  objects and return same ISeq object for an internal ISeq object.

* iseq.h (ISEQ_EXECUTABLE_P): introduced to check executable ISeq objects.

* iseq.h (ISEQ_COMPILE_DATA_ALLOC): reordr setting flag line to avoid
  ISEQ_USE_COMPILE_DATA but compiled_data == NULL case.

* vm_core.h (rb_iseq_t): introduce `rb_iseq_t::wrapper` and
  `rb_iseq_t::aux::exec`.  Move `rb_iseq_t::local_hooks` to
  `rb_iseq_t::aux::exec::local_hooks`.

* test/ruby/test_iseq.rb: add ISeq.of() tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66246 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-06 10:52:27 +00:00
ko1 72e60a0437 `TracePoint#enable(target_line:)` is supported. [Feature #15289]
* vm_trace.c: `TracePoint#enable(target_line:)` is supported.
  This option enables a hook only at specified target_line.
  target_line should be combination with target and :line event.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66008 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-26 20:16:14 +00:00
ko1 96990203b7 Support targetting TracePoint [Feature #15289]
* vm_trace.c (rb_tracepoint_enable_for_target): support targetting
  TracePoint. [Feature #15289]

  Tragetting TracePoint is only enabled on specified method, proc
  and so on, example: `tp.enable(target: code)`.

  `code` should be consisted of InstructionSeuqnece (iseq)
  (RubyVM::InstructionSeuqnece.of(code) should not return nil)
  If code is a tree of iseq, TracePoint is enabled on all of
  iseqs in a tree.

  Enabled tragetting TracePoints can not enabled again with
  and without target.

* vm_core.h (rb_iseq_t): introduce `rb_iseq_t::local_hooks`
  to store local hooks.
  `rb_iseq_t::aux::trace_events` is renamed to
  `global_trace_events` to contrast with `local_hooks`.

* vm_core.h (rb_hook_list_t): add `rb_hook_list_t::running`
  to represent how many Threads/Fibers are used this list.
  If this field is 0, nobody using this hooks and we can
  delete it.

  This is why we can remove code from cont.c.

* vm_core.h (rb_vm_t): because of above change, we can eliminate
  `rb_vm_t::trace_running` field.
  Also renamed from `rb_vm_t::event_hooks` to `global_hooks`.

* vm_core.h, vm.c (ruby_vm_event_enabled_global_flags): renamed
  from `ruby_vm_event_enabled_flags.

* vm_core.h, vm.c (ruby_vm_event_local_num): added to count
  enabled targetting TracePoints.

* vm_core.h, vm_trace.c (rb_exec_event_hooks): accepts
  hook list.

* vm_core.h (rb_vm_global_hooks): added for convinience.

* method.h (rb_method_bmethod_t): added to maintain Proc
  and `rb_hook_list_t` for bmethod (defined by define_method).

* prelude.rb (TracePoint#enable): extracet a keyword parameter
  (because it is easy than writing in C).
  It calls `TracePoint#__enable` internal method written in C.

* vm_insnhelper.c (vm_trace): check also iseq->local_hooks.

* vm.c (invoke_bmethod): check def->body.bmethod.hooks.

* vm.c (hook_before_rewind): check iseq->local_hooks
  and def->body.bmethod.hooks before rewind by exception.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66003 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-26 18:16:39 +00:00
svn b5425ad780 * expand tabs.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65226 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-20 10:45:55 +00:00
mame 6c9a705032 Remove tracecoverage instructions
The instructions were used only for branch coverage.
Instead, it now uses a trace framework [Feature #14104].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65225 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-20 10:45:48 +00:00
nobu 262437b457 Remove compile-time dependencies on ruby/version.h
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65063 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-13 16:21:06 +00:00
k0kubun 402001d6c7 iseq.c: prefix rb_ to non-static iseq functions
I assume we always prefix rb_ to non-static functions to avoid conflict.
These functions are not exported and safe to be renamed.

iseq.h: ditto
compile.c: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64736 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-13 13:59:25 +00:00
ko1 b85b10c11f check trace flags at loading [Bug #14702]
* iseq.c (iseq_init_trace): at ISeq loading time, we need to check
  `ruby_vm_event_enabled_flags` to turn on trace instructions.
  Seprate this checking code from `finish_iseq_build()` and make
  new function. `iseq_ibf_load()` calls this funcation after loading.

* test/ruby/test_iseq.rb: add a test for this fix.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64514 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-23 04:12:14 +00:00
mame 100bf27574 compile.c: remove tracecoverage instruction for line coverage
Line coverage was based on special instruction "tracecoverage".
Now, instead, it uses the mechanism of trace hook [Feature #14104].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-22 11:09:47 +00:00
nobu c5f50296b4 prototized
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-22 10:22:02 +00:00
mame 33af0429ea thread.c (rb_reset_coverages): remove coverage counters from all ISeqs
When coverage measurement is enabled, the compiler makes each iseq have
a reference to the counter array of coverage.
Even after coverage measurement is disabled, the reference is kept.
And, if coverage measurement is restarted, a coverage hook will increase
the counter.  This is completely meaningless; it brings just overhead.

To remove this meaninglessness, this change removes all the reference
when coverage measuement is stopped.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-22 05:24:50 +00:00
nobu c5a5563dbe repack structs
Repack rb_thread_struct, rb_execution_context_struct, args_info and
iseq_compile_data to save 1 word per struct.

re_pattern_buffer remains unpacked due to the possible binary
compatibility.

[Fix GH-1907]

Based on the patch

From: Lourens Naudé <lourens@bearmetal.eu>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-29 01:32:37 +00:00
mame 75d25ede15 Make VM_INSN_INFO_TABLE_IMPL=1 work
rb_iseq_insns_info_decode_positions is used only when
VM_INSN_INFO_TABLE_IMPL=2.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63645 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-06-13 04:51:43 +00:00
normal 7cc12d6311 iseq.h (struct iseq_compile_data): remove cached_const field
Nobody uses it, and "git log -p -Scached_const" shows it's ever
been used in public history.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63596 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-06-07 01:14:09 +00:00
nobu c4a83d2924 iseq.h: fix argument order
* iseq.h (ISEQ_ORIGINAL_ISEQ_ALLOC): the order of ruby_xmalloc2
  arguments is `count` and `element size`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63380 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-05-09 16:12:41 +00:00
shyouhei 75d5cf55de RSTRING_PTR is not guaranteed to be VALUE-aligned (retry)
Don't abuse struct RString to hold arbitrary memory region.
Raw pointer should just suffice.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63368 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-05-09 05:42:06 +00:00
shyouhei dfc56b8c43 revert r63362 due to test failure. Sorry!
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63363 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-05-09 02:42:22 +00:00
shyouhei 7079db9ec5 RSTRING_PTR is not guaranteed to be VALUE-aligned
Don't abuse struct RString to hold arbitrary memory region.
use rb_alloc_tmp_buffer for that purpose.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63362 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-05-09 02:36:34 +00:00
nobu bc6e61f149 compile.c: do not dump pointers
* compile.c (ibf_dump_iseq_each): do not dump succ_index_table
  pointer.  positions are dumped as integer arrays.  pointer
  values are meaningless outside the process.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63099 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-04-05 07:04:39 +00:00
tenderlove 9e26858e8c Reverting r62775, this should fix i686 builds
We need to mark default values for kwarg methods.  This also fixes
Bootsnap.  IBF iseq loading needed to mark iseqs as "having markable
objects".

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62851 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-19 18:21:54 +00:00
naruse 94c40622f5 Revert "Add direct marking on iseq operands"
This reverts commit r62706.

It causes SEGV on i686-linux (debian) and armv7l-linux-eabihf:
http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20180309T204300Z.diff.html.gz
http://rubyci.s3.amazonaws.com/scw-9d6766/ruby-trunk/log/20180309T211706Z.diff.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62775 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-16 07:59:10 +00:00
naruse a14a679787 Revert "Fix error: implicit conversion loses integer precision"
This reverts commit r62708.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62774 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-16 07:59:09 +00:00
kazu 5901e8fb83 Fix error: implicit conversion loses integer precision
http://ci.rvm.jp/results/trunk_clang_50@silicon-docker/627906
```
iseq.h:41:36: error: implicit conversion loses integer precision: 'rb_num_t' (aka 'unsigned long') to 'int' [-Werror,-Wshorten-64-to-32]
    int cnt = iseq->body->variable.flip_count;
        ~~~   ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
```

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-10 00:33:11 +00:00
tenderlove 8952964976 Add direct marking on iseq operands
Directly marking iseq operands allows us to eliminate the "mark array"
stored on ISEQ objects, which will reduce the amount of memory ISEQ
objects consume.  This patch changes the iseq mark function to:

* Directly marks ISEQ operands
* Iterate over and mark child ISEQs

It also introduces two flags on the ISEQ object.  In order to mark
instruction operands, we have to disassemble the instructions and find
the instruction parameters and types.  Instructions may also be
translated to jump addresses.  Instruction sequences may get marked by
the GC *while* they're mid flight (being compiled).  The
`ISEQ_TRANSLATED` flag is used to indicate whether or not the
instructions have been translated to jump addresses so that when we
decode the instructions we know whether or not we need to go from jump
location back to original instruction or not.

Not all ISEQ objects have any markable objects embedded in their
instructions.  We can detect whether or not an ISEQ has markable objects
in the instructions at compile time.  If the instructions contain
markable objects, we set a flag `ISEQ_MARKABLE_ISEQ` on the ISEQ object.
This means that during the mark phase, we can skip decompilation if the
flag is *not* set.  In other words, we can avoid decompilation of we
know in advance there is nothing to mark.

`once` instructions have an operand that contains the result of a
one-time compilation of a regex.  Before this patch, that operand was
called an "inline cache", even though the struct was actually an "inline
storage".  This patch changes the operand to be an "inline storage" so
that we can differentiate between caches that need marking (the inline
storage) and caches that don't need marking (inline cache).

[ruby-core:84909]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-09 20:11:45 +00:00
shyouhei 00d0bef714 there is no such thing like 0 in enum defined_type
introduce new enum for it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61946 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-19 05:18:18 +00:00
nobu 6b5e0bd98c exclude flexible array size with old compilers
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61814 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-14 11:19:18 +00:00
mame 7ad9975fe7 iseq.h (struct iseq_catch_table_entry, iseq_compile_data_storage): Use FLEX_ARY_LEN
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61808 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-13 12:44:17 +00:00
mame 83262f2489 iseq.c: Add a succinct bitvector implementation for insn_info_table
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61739 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-09 14:05:23 +00:00
mame 4928900814 Rename code_range to code_location
Because the name "code_range" is ambiguous with encoding's.
Abbreviations ("crange", and "cr") are also renamed to "loc".

The traditional "code_location" (a pair of lineno and column) is
renamed to "code_position".  Abbreviations are also renamed
(first_loc to beg_pos, and last_loc to end_pos).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-09 08:45:35 +00:00
mame e743a35314 iseq.c: Refactor out rb_iseq_new_ifunc from rb_iseq_new_with_opt
It is too error-prone to pass IMEMO_IFUNC object as NODE*.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-04 07:07:49 +00:00