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2018-11-19array.c: avoid (VALUE)--shyouhei
This args[1]-- overflows when it is zero. Should do that only when we can say it is nonzero. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-04array.c: [DOC] add docs for Array#{filter,filter!}stomar
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65528 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-04array.c: [DOC] improve Array#{select,select!,keep_if} docsstomar
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-01introduce USE_TRANSIENT_HEAP to enable/disable theap.ko1
* include/ruby/ruby.h: intrdocue `USE_TRANSIENT_HEAP` macro to enable/disable transient heap. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30* remove trailing spaces, expand tabs.svn
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65455 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30support theap for T_HASH. [Feature #14989]ko1
* hash.c, internal.h: support theap for small Hash. Introduce RHASH_ARRAY (li_table) besides st_table and small Hash (<=8 entries) are managed by an array data structure. This array data can be managed by theap. If st_table is needed, then converting array data to st_table data. For st_table using code, we prepare "stlike" APIs which accepts hash value and are very similar to st_ APIs. This work is based on the GSoC achievement by tacinight <tacingiht@gmail.com> and refined by ko1. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65454 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30* expand tabs.svn
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65450 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30introduce TransientHeap. [Bug #14858]ko1
* transient_heap.c, transient_heap.h: implement TransientHeap (theap). theap is designed for Ruby's object system. theap is like Eden heap on generational GC terminology. theap allocation is very fast because it only needs to bump up pointer and deallocation is also fast because we don't do anything. However we need to evacuate (Copy GC terminology) if theap memory is long-lived. Evacuation logic is needed for each type. See [Bug #14858] for details. * array.c: Now, theap for T_ARRAY is supported. ary_heap_alloc() tries to allocate memory area from theap. If this trial sccesses, this array has theap ptr and RARRAY_TRANSIENT_FLAG is turned on. We don't need to free theap ptr. * ruby.h: RARRAY_CONST_PTR() returns malloc'ed memory area. It menas that if ary is allocated at theap, force evacuation to malloc'ed memory. It makes programs slow, but very compatible with current code because theap memory can be evacuated (theap memory will be recycled). If you want to get transient heap ptr, use RARRAY_CONST_PTR_TRANSIENT() instead of RARRAY_CONST_PTR(). If you can't understand when evacuation will occur, use RARRAY_CONST_PTR(). (re-commit of r65444) git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65449 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30* expand tabs.svn
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65448 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30revert r65444 and r65446 because of commit missko1
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65447 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30* expand tabs.svn
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65445 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30introduce TransientHeap. [Bug #14858]ko1
* transient_heap.c, transient_heap.h: implement TransientHeap (theap). theap is designed for Ruby's object system. theap is like Eden heap on generational GC terminology. theap allocation is very fast because it only needs to bump up pointer and deallocation is also fast because we don't do anything. However we need to evacuate (Copy GC terminology) if theap memory is long-lived. Evacuation logic is needed for each type. See [Bug #14858] for details. * array.c: Now, theap for T_ARRAY is supported. ary_heap_alloc() tries to allocate memory area from theap. If this trial sccesses, this array has theap ptr and RARRAY_TRANSIENT_FLAG is turned on. We don't need to free theap ptr. * ruby.h: RARRAY_CONST_PTR() returns malloc'ed memory area. It menas that if ary is allocated at theap, force evacuation to malloc'ed memory. It makes programs slow, but very compatible with current code because theap memory can be evacuated (theap memory will be recycled). If you want to get transient heap ptr, use RARRAY_CONST_PTR_TRANSIENT() instead of RARRAY_CONST_PTR(). If you can't understand when evacuation will occur, use RARRAY_CONST_PTR(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65444 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-30use RARRAY_AREF() instead of RARRAY_CONST_PTR().ko1
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65438 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-19array.c, file.c, string.c: [DOC] fix typosstomar
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65185 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-19array.c: improve docs for Array#differencestomar
* array.c: [DOC] small doc fixes for Array#difference and Array#-. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65184 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-13array.c: fix rdoc syntaxstomar
* array.c: [DOC] use `<code>other_ary</code>s' instead of `+other_ary+s', which is not rendered correctly. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65066 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-10revisit `RARRAY_PTR()`.ko1
* array.c (yield_indexed_values): use RARRAY_AREF/ASET instead of using RARRAY_PTR(). * enum.c (nmin_filter): ditto. * proc.c (rb_sym_to_proc): ditto. * enum.c (rb_nmin_run): use RARRAY_PTR_USE() instead of RARRAY_PTR(). It is safe because they don't make new referecen from an array. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64986 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-10revisit `RARRAY_PTR()`.ko1
* array.c (ary_memcpy0): remove traditional `RARRAY_PTR()` code. It's enough stable. * array.c (rb_ary_splice): add comment about wb-unprotect. * array.c (rotate_count): use `RARRAY_PTR_USE()` instead of `RARRAY_PTR()` to avoid wb-unprotect. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64985 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-07Fix indent of output in doc [ci skip]kazu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64930 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-05* expand tabs.svn
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-10-05Add difference method to Arraynobu
I introduce a `difference` method equivalent to the `-` operator, but which accept more than array as argument. This improved readability, and it is also coherent with the `+` operator, which has a similar `concat` method. The method doesn't modify the original object and return a new object instead. I plan to introduce a `difference!` method as well. Tests and documentation are included. It solves partially https://bugs.ruby-lang.org/issues/14097 From: Ana María Martínez Gómez <ammartinez@suse.de> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64921 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-21Fix sample code [ci skip]kazu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64805 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-20Enumerable#to_h with block and so onnobu
[Feature #15143] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64794 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-20Introduce rb_ary_union_hash method in Arraynobu
Avoid repeating code and improve readability in `rb_ary_or` and `rb_ary_union_multi`. Similaty as done with `rb_ary_union`. [Fix GH-1747] [Feature #14097] From: Ana María Martínez Gómez <ammartinez@suse.de> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64790 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-20Link Array#union from | methodnobu
`Array#uniq` is not really related with `Array#|`, so I replaced it by `Array#union`. [Fix GH-1747] [Feature #14097] From: Ana María Martínez Gómez <ammartinez@suse.de> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64789 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-20Introduce rb_ary_union method in Arraynobu
Avoid repeating code and improve readability in `rb_ary_or` and `rb_ary_union_multi`. [Fix GH-1747] [Feature #14097] From: Ana María Martínez Gómez <ammartinez@suse.de> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64788 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-20Add union method to Arraynobu
I introduce a `union` method equivalent to the `|` operator, but which accept more than array as argument. This improved readability, and it is also coherent with the `+` operator, which has a similar `concat` method. The method doesn't modify the original object and return a new object instead. It is plan to introduce a `union!` method as well. Tests and documentation are included. It solves partially https://bugs.ruby-lang.org/issues/14097 [Fix GH-1747] [Feature #14097] From: Ana María Martínez Gómez <ammartinez@suse.de> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64787 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-16array.c: Optimize rb_ary_and. Patch by Stefan Schüßler. [Fix GH-1938]marcandre
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64755 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-09-13warn unused blocks with Enumerable#all? any? one? none?nobu
[Fix GH-1953] From: Koji Onishi <fursich0@gmail.com> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-08-28rest parameter optimization [Feature #15010]ko1
* vm_args.c: rb_ary_dup(args->rest) to be used at most once during parameter setup. [Feature #15010] A patch by chopraanmol1 (Anmol Chopra) <chopraanmol1@gmail.com>. * array.c (rb_ary_behead): added to remove first n elements. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-22fix sum on infinitynobu
* array.c (rb_ary_sum): consider non-finite floats. [ruby-core:88024] [Bug #14926] * enum.c (sum_iter): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64014 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-11Make block spacing consistentnobu
[Fix GH-1910] [ci skip] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63951 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-01Fix a typo [ci skip]kazu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63814 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-06-23[DOC] Add call signature for {Array,Hash}#any?ktsj
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63729 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-05-21array.c: use ruby_sized_free and SIZED_REALLOC_Nnormal
Part of the plan to reduce dependencies on malloc_usable_size which costs us speed: https://bugs.ruby-lang.org/issues/10238 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63481 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-05-08rb_ary_dig, rb_hash_dig: nobody is using them outside.shyouhei
mark them static. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63358 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-29array.c: yield blockarg in collectnobu
* array.c (rb_ary_collect): yield in block argument semantics always to splat array elements to lambda, for the backward compatibility. [ruby-core:86362] [Bug #14639] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-25Add a new #filter alias for #selecteregon
* In Enumerable, Enumerator::Lazy, Array, Hash and Set [Feature #13784] [ruby-core:82285] * Share specs for the various #select#select! methods and reuse them for #filter/#filter!. * Add corresponding filter tests for select tests. * Update NEWS. [Fix GH-1824] From: Alexander Patrick <adp90@case.edu> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62575 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-24Improve Array#sample with random documentationnobu
* array.c (rb_ary_sample): Adds examples for the use of the optional parameter random for Array#sample and unifies the style with the documentation of Array#shuffle. [Fix GH-1825] From: Alberto Almagro <alberto.almagro@rakuten.com> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62553 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-15Array#values_at optimizationnobu
* array.c (rb_ary_values_at): optimization range argument case. bulk concatenation than pushing for each element. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62413 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-12vm_insnhelper.c: inline array aref with integerk0kubun
internal.h: define inlinable rb_ary_entry_internal. array.c: use rb_ary_entry_internal. * Benchmark ruby --jit mame/optcarrot/bin/optcarrot --benchmark mame/optcarrot/examples/Lan_Master.nes ** Before checksum: 59662 fps: 58.095175012159686 ** After fps: 59.874751599221526 checksum: 59662 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62388 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-04mjit_compile.c: merge initial JIT compilerk0kubun
which has been developed by Takashi Kokubun <takashikkbn@gmail> as YARV-MJIT. Many of its bugs are fixed by wanabe <s.wanabe@gmail.com>. This JIT compiler is designed to be a safe migration path to introduce JIT compiler to MRI. So this commit does not include any bytecode changes or dynamic instruction modifications, which are done in original MJIT. This commit even strips off some aggressive optimizations from YARV-MJIT, and thus it's slower than YARV-MJIT too. But it's still fairly faster than Ruby 2.5 in some benchmarks (attached below). Note that this JIT compiler passes `make test`, `make test-all`, `make test-spec` without JIT, and even with JIT. Not only it's perfectly safe with JIT disabled because it does not replace VM instructions unlike MJIT, but also with JIT enabled it stably runs Ruby applications including Rails applications. I'm expecting this version as just "initial" JIT compiler. I have many optimization ideas which are skipped for initial merging, and you may easily replace this JIT compiler with a faster one by just replacing mjit_compile.c. `mjit_compile` interface is designed for the purpose. common.mk: update dependencies for mjit_compile.c. internal.h: declare `rb_vm_insn_addr2insn` for MJIT. vm.c: exclude some definitions if `-DMJIT_HEADER` is provided to compiler. This avoids to include some functions which take a long time to compile, e.g. vm_exec_core. Some of the purpose is achieved in transform_mjit_header.rb (see `IGNORED_FUNCTIONS`) but others are manually resolved for now. Load mjit_helper.h for MJIT header. mjit_helper.h: New. This is a file used only by JIT-ed code. I'll refactor `mjit_call_cfunc` later. vm_eval.c: add some #ifdef switches to skip compiling some functions like Init_vm_eval. win32/mkexports.rb: export thread/ec functions, which are used by MJIT. include/ruby/defines.h: add MJIT_FUNC_EXPORTED macro alis to clarify that a function is exported only for MJIT. array.c: export a function used by MJIT. bignum.c: ditto. class.c: ditto. compile.c: ditto. error.c: ditto. gc.c: ditto. hash.c: ditto. iseq.c: ditto. numeric.c: ditto. object.c: ditto. proc.c: ditto. re.c: ditto. st.c: ditto. string.c: ditto. thread.c: ditto. variable.c: ditto. vm_backtrace.c: ditto. vm_insnhelper.c: ditto. vm_method.c: ditto. I would like to improve maintainability of function exports, but I believe this way is acceptable as initial merging if we clarify the new exports are for MJIT (so that we can use them as TODO list to fix) and add unit tests to detect unresolved symbols. I'll add unit tests of JIT compilations in succeeding commits. Author: Takashi Kokubun <takashikkbn@gmail.com> Contributor: wanabe <s.wanabe@gmail.com> Part of [Feature #14235] --- * Known issues * Code generated by gcc is faster than clang. The benchmark may be worse in macOS. Following benchmark result is provided by gcc w/ Linux. * Performance is decreased when Google Chrome is running * JIT can work on MinGW, but it doesn't improve performance at least in short running benchmark. * Currently it doesn't perform well with Rails. We'll try to fix this before release. --- * Benchmark reslts Benchmarked with: Intel 4.0GHz i7-4790K with 16GB memory under x86-64 Ubuntu 8 Cores - 2.0.0-p0: Ruby 2.0.0-p0 - r62186: Ruby trunk (early 2.6.0), before MJIT changes - JIT off: On this commit, but without `--jit` option - JIT on: On this commit, and with `--jit` option ** Optcarrot fps Benchmark: https://github.com/mame/optcarrot | |2.0.0-p0 |r62186 |JIT off |JIT on | |:--------|:--------|:--------|:--------|:--------| |fps |37.32 |51.46 |51.31 |58.88 | |vs 2.0.0 |1.00x |1.38x |1.37x |1.58x | ** MJIT benchmarks Benchmark: https://github.com/benchmark-driver/mjit-benchmarks (Original: https://github.com/vnmakarov/ruby/tree/rtl_mjit_branch/MJIT-benchmarks) | |2.0.0-p0 |r62186 |JIT off |JIT on | |:----------|:--------|:--------|:--------|:--------| |aread |1.00 |1.09 |1.07 |2.19 | |aref |1.00 |1.13 |1.11 |2.22 | |aset |1.00 |1.50 |1.45 |2.64 | |awrite |1.00 |1.17 |1.13 |2.20 | |call |1.00 |1.29 |1.26 |2.02 | |const2 |1.00 |1.10 |1.10 |2.19 | |const |1.00 |1.11 |1.10 |2.19 | |fannk |1.00 |1.04 |1.02 |1.00 | |fib |1.00 |1.32 |1.31 |1.84 | |ivread |1.00 |1.13 |1.12 |2.43 | |ivwrite |1.00 |1.23 |1.21 |2.40 | |mandelbrot |1.00 |1.13 |1.16 |1.28 | |meteor |1.00 |2.97 |2.92 |3.17 | |nbody |1.00 |1.17 |1.15 |1.49 | |nest-ntimes|1.00 |1.22 |1.20 |1.39 | |nest-while |1.00 |1.10 |1.10 |1.37 | |norm |1.00 |1.18 |1.16 |1.24 | |nsvb |1.00 |1.16 |1.16 |1.17 | |red-black |1.00 |1.02 |0.99 |1.12 | |sieve |1.00 |1.30 |1.28 |1.62 | |trees |1.00 |1.14 |1.13 |1.19 | |while |1.00 |1.12 |1.11 |2.41 | ** Discourse's script/bench.rb Benchmark: https://github.com/discourse/discourse/blob/v1.8.7/script/bench.rb NOTE: Rails performance was somehow a little degraded with JIT for now. We should fix this. (At least I know opt_aref is performing badly in JIT and I have an idea to fix it. Please wait for the fix.) *** JIT off Your Results: (note for timings- percentile is first, duration is second in millisecs) categories_admin: 50: 17 75: 18 90: 22 99: 29 home_admin: 50: 21 75: 21 90: 27 99: 40 topic_admin: 50: 17 75: 18 90: 22 99: 32 categories: 50: 35 75: 41 90: 43 99: 77 home: 50: 39 75: 46 90: 49 99: 95 topic: 50: 46 75: 52 90: 56 99: 101 *** JIT on Your Results: (note for timings- percentile is first, duration is second in millisecs) categories_admin: 50: 19 75: 21 90: 25 99: 33 home_admin: 50: 24 75: 26 90: 30 99: 35 topic_admin: 50: 19 75: 20 90: 25 99: 30 categories: 50: 40 75: 44 90: 48 99: 76 home: 50: 42 75: 48 90: 51 99: 89 topic: 50: 49 75: 55 90: 58 99: 99 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-02-01array.c: remove rb_ary_frozen_p / Array#frozen?normal
This is redundant since r15206 / ffe425ecaaa2a3f813e1d540e20e2179bce44302 as we no longer lock the array during sort. Instead, fall back to Object#frozen? git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62154 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-27array.c: rb_check_to_arraynobu
* array.c (rb_check_to_array): conversion to array by to_a method. returns nil if not possible. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-19don't abuse RSTRING_PTR (2nd try)shyouhei
r61827, r61947 was about to fix this. The proper way to allocate memory region is called ALLOCV_N. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-19svn merge -c -61947 .shyouhei
Previous commit fails in CI. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61948 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-19don't abuse RSTRING_PTRshyouhei
r61827 was about to fix this. The proper way to allocate memory region is called ALLOCV_N. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-19INFINITY is float. That of double is HUGE_VAL.shyouhei
It seems HUGE_VAL is already used. Why not eliminate INTINITY. NAN is also float. That of double is called nan(). This is also fixed. Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-18[DOC] Add `Array#{append,prepend}` to call-seq [ci skip]kazu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-09internal.h: remove dependecy on ruby/encoding.hnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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