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Get rid of infinite recursion in expanding a load path to the real
path while loading a transcoder.
Notes:
Merged: https://github.com/ruby/ruby/pull/2714
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After the previous commit, this was still broken. The reason it
was broken is that a refined module that hasn't been prepended to
yet keeps the refined methods in the module's method table. When
prepending, the module's method table is moved to the origin
iclass, and then the refined methods are moved from the method
table to a new method table in the module itself.
Unfortunately, that means that if a class has included the module,
prepending breaks the refinements, because when the methods are
moved from the origin iclass method table to the module method
table, they are removed from the method table from the iclass
created when the module was included earlier.
Fix this by always creating an origin class when including a
module that has any refinements, even if the refinements are
not currently used. I wasn't sure the best way to do that.
The approach I choose was to use an object flag. The flag is
set on the module when Module#refine is called, and if the
flag is present when the module is included in another module
or class, an origin iclass is created for the module.
Fixes [Bug #13446]
Notes:
Merged: https://github.com/ruby/ruby/pull/2550
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Decades ago, among all the data that a class has, its method
table was no doubt the most frequently accessed data. Previous
data structures were based on that assumption.
Today that is no longer true. The most frequently accessed field
moved to class_serial. That field is not always as wide as VALUE
but if it is, let us swap m_tbl and class_serial.
Calculating -------------------------------------
ours trunk
Optcarrot Lan_Master.nes 47.363 46.630 fps
Comparison:
Optcarrot Lan_Master.nes
ours: 47.4 fps
trunk: 46.6 fps - 1.02x slower
Notes:
Merged: https://github.com/ruby/ruby/pull/2701
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emscripten fails to compile ruby due to lack of this.
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This commit reverts a part of 0e8219f591f3f17cb7ee361e8a60dbef08145883
which broke icc. See also https://rubyci.org/logs/rubyci.s3.amazonaws.com/icc-x64/ruby-master/log/20191120T010006Z.fail.html.gz
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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.
Notes:
Merged: https://github.com/ruby/ruby/pull/2682
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This removes the security features added by $SAFE = 1, and warns for access
or modification of $SAFE from Ruby-level, as well as warning when calling
all public C functions related to $SAFE.
This modifies some internal functions that took a safe level argument
to no longer take the argument.
rb_require_safe now warns, rb_require_string has been added as a
version that takes a VALUE and does not warn.
One public C function that still takes a safe level argument and that
this doesn't warn for is rb_eval_cmd. We may want to consider
adding an alternative method that does not take a safe level argument,
and warn for rb_eval_cmd.
Notes:
Merged: https://github.com/ruby/ruby/pull/2476
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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.
Notes:
Merged: https://github.com/ruby/ruby/pull/2677
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Nobody uses it.
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Prior to this changeset, majority of inline cache mishits resulted
into the same method entry when rb_callable_method_entry() resolves
a method search. Let's not call the function at the first place on
such situations.
In doing so we extend the struct rb_call_cache from 44 bytes (in
case of 64 bit machine) to 64 bytes, and fill the gap with
secondary class serial(s). Call cache's class serials now behavies
as a LRU cache.
Calculating -------------------------------------
ours 2.7 2.6
vm2_poly_same_method 2.339M 1.744M 1.369M i/s - 6.000M times in 2.565086s 3.441329s 4.381386s
Comparison:
vm2_poly_same_method
ours: 2339103.0 i/s
2.7: 1743512.3 i/s - 1.34x slower
2.6: 1369429.8 i/s - 1.71x slower
Notes:
Merged: https://github.com/ruby/ruby/pull/2583
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ISO/IEC 9899:1999 section 6.7.8 specifies the values of static
storage which are not explicitly initialized. According to that
these initializers can be omitted. Doing so improvoes future
compatibility against addition / deletion of the fields of this
struct.
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Noticed that rb_method_basic_definition_p is frequently called.
Its callers include vm_caller_setup_args_block(),
rb_hash_default_value(), rb_num_neative_int_p(), and a lot more.
It seems worth caching the method resolution part. Majority of
rb_method_basic_definion_p() usages take fixed class and fixed
method id combinations.
Calculating -------------------------------------
ours trunk
so_matrix 2.379 2.115 i/s - 1.000 times in 0.420409s 0.472879s
Comparison:
so_matrix
ours: 2.4 i/s
trunk: 2.1 i/s - 1.12x slower
Notes:
Merged: https://github.com/ruby/ruby/pull/2629
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Apply __attribute__((__returns_nonnull__)) when available.
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malloc can fail. Should treat such situations.
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This reverts commit 54eb51d72bc43f90b595f0d7ffb5069ebf1a56d9.
Windows build failure. See also https://github.com/ruby/ruby/runs/278718805
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Previously this was restricted to only gcc because of the
GCC_VERSION_SINCE check (which explicitly excludes clang).
GCC 3.3.0 is quite old so I feel relatively safe assuming that all
reasonable versions of clang support this.
Notes:
Merged: https://github.com/ruby/ruby/pull/2628
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Replacing adjacent struct rb_call_info and struct rb_call_cache
into a struct rb_call_data.
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Requested by ko1 that ability of calling rb_raise from anywhere
outside of GVL is "too much". Give up that part, move the GVL
aquisition routine into gc.c, and make our new gc_raise().
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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.
Notes:
Merged: https://github.com/ruby/ruby/pull/2540
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Make them gcc friendly. Note that realloc canot be __malloc__
attributed, according to the GCC manual.
Notes:
Merged: https://github.com/ruby/ruby/pull/2540
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Seems nobody has actually used this macro. Such an obvious typo.
Notes:
Merged: https://github.com/ruby/ruby/pull/2540
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This function has been used wrongly always at first, "allocate a
buffer then wrap it with tmpbuf". This order can cause a memory
leak, as tmpbuf creation also can raise a NoMemoryError exception.
The right order is "create a tmpbuf then allocate&wrap a buffer".
So the argument of this function is rather harmful than just
useless.
TODO:
* Rename this function to more proper name, as it is not used
"temporary" (function local) purpose.
* Allocate and wrap at once safely, like `ALLOCV`.
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The parser needs to determine whether a local varaiable is defined or
not in outer scope. For the sake, "base_block" field has kept the outer
block.
However, the whole block was actually unneeded; the parser used only
base_block->iseq.
So, this change lets parser_params have the iseq directly, instead of
the whole block.
Notes:
Merged: https://github.com/ruby/ruby/pull/2519
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This reverts commits: 10d6a3aca7 8ba48c1b85 fba8627dc1 dd883de5ba
6c6a25feca 167e6b48f1 7cb96d41a5 3207979278 595b3c4fdd 1521f7cf89
c11c5e69ac cf33608203 3632a812c0 f56506be0d 86427a3219 .
The reason for the revert is that we observe ABA problem around
inline method cache. When a cache misshits, we search for a
method entry. And if the entry is identical to what was cached
before, we reuse the cache. But the commits we are reverting here
introduced situations where a method entry is freed, then the
identical memory region is used for another method entry. An
inline method cache cannot detect that ABA.
Here is a code that reproduce such situation:
```ruby
require 'prime'
class << Integer
alias org_sqrt sqrt
def sqrt(n)
raise
end
GC.stress = true
Prime.each(7*37){} rescue nil # <- Here we populate CC
class << Object.new; end
# These adjacent remove-then-alias maneuver
# frees a method entry, then immediately
# reuses it for another.
remove_method :sqrt
alias sqrt org_sqrt
end
Prime.each(7*37).to_a # <- SEGV
```
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At last, not only myself but also your compiler are fully confident
that the method entries pointed from call caches are immutable. We
don't have to worry about silent updates. Just delete the branch
that is now always false.
Calculating -------------------------------------
ours trunk
vm2_poly_same_method 2.142M 2.070M i/s - 6.000M times in 2.801148s 2.898994s
Comparison:
vm2_poly_same_method
ours: 2141979.2 i/s
trunk: 2069683.8 i/s - 1.03x slower
Notes:
Merged: https://github.com/ruby/ruby/pull/2486
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We are calling this in a few other files, it is better to have it
in a header than adding prototypes to the other files.
Notes:
Merged: https://github.com/ruby/ruby/pull/2491
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This approach uses a flag bit on the final hash object in the regular splat,
as opposed to a previous approach that used a VM frame flag. The hash flag
approach is less invasive, and handles some cases that the VM frame flag
approach does not, such as saving the argument splat array and splatting it
later:
ruby2_keywords def foo(*args)
@args = args
bar
end
def bar
baz(*@args)
end
def baz(*args, **kw)
[args, kw]
end
foo(a:1) #=> [[], {a: 1}]
foo({a: 1}, **{}) #=> [[{a: 1}], {}]
foo({a: 1}) #=> 2.7: [[], {a: 1}] # and warning
foo({a: 1}) #=> 3.0: [[{a: 1}], {}]
It doesn't handle some cases that the VM frame flag handles, such as when
the final hash object is replaced using Hash#merge, but those cases are
probably less common and are unlikely to properly support keyword
argument separation.
Use ruby2_keywords to handle argument delegation in the delegate library.
Notes:
Merged: https://github.com/ruby/ruby/pull/2477
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Cfuncs that use rb_scan_args with the : entry suffer similar keyword
argument separation issues that Ruby methods suffer if the cfuncs
accept optional or variable arguments.
This makes the following changes to : handling.
* Treats as **kw, prompting keyword argument separation warnings
if called with a positional hash.
* Do not look for an option hash if empty keywords are provided.
For backwards compatibility, treat an empty keyword splat as a empty
mandatory positional hash argument, but emit a a warning, as this
behavior will be removed in Ruby 3. The argument number check
needs to be moved lower so it can correctly handle an empty
positional argument being added.
* If the last argument is nil and it is necessary to treat it as an option
hash in order to make sure all arguments are processed, continue to
treat the last argument as the option hash. Emit a warning in this case,
as this behavior will be removed in Ruby 3.
* If splitting the keyword hash into two hashes, issue a warning, as we
will not be splitting hashes in Ruby 3.
* If the keyword argument is required to fill a mandatory positional
argument, continue to do so, but emit a warning as this behavior will
be going away in Ruby 3.
* If keyword arguments are provided and the last argument is not a hash,
that indicates something wrong. This can happen if a cfunc is calling
rb_scan_args multiple times, and providing arguments that were not
passed to it from Ruby. Callers need to switch to the new
rb_scan_args_kw function, which allows passing of whether keywords
were provided.
This commit fixes all warnings caused by the changes above.
It switches some function calls to *_kw versions with appropriate
kw_splat flags. If delegating arguments, RB_PASS_CALLED_KEYWORDS
is used. If creating new arguments, RB_PASS_KEYWORDS is used if
the last argument is a hash to be treated as keywords.
In open_key_args in io.c, use rb_scan_args_kw.
In this case, the arguments provided come from another C
function, not Ruby. The last argument may or may not be a hash,
so we can't set keyword argument mode. However, if it is a
hash, we don't want to warn when treating it as keywords.
In Ruby files, make sure to appropriately use keyword splats
or literal keywords when calling Cfuncs that now issue keyword
argument separation warnings through rb_scan_args. Also, make
sure not to pass nil in place of an option hash.
Work around Kernel#warn warnings due to problems in the Rubygems
override of the method. There is an open pull request to fix
these issues in Rubygems, but part of the Rubygems tests for
their override fail on ruby-head due to rb_scan_args not
recognizing empty keyword splats, which this commit fixes.
Implementation wise, adding rb_scan_args_kw is kind of a pain,
because rb_scan_args takes a variable number of arguments.
In order to not duplicate all the code, the function internals need
to be split into two functions taking a va_list, and to avoid passing
in a ton of arguments, a single struct argument is used to handle
the variables previously local to the function.
Notes:
Merged-By: jeremyevans <code@jeremyevans.net>
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This function was created as a variant of st_copy with firing write
barrier.
It should have more explicit name, such as st_copy_with_write_barrier.
But because it is used only for copying iv_tbl, so I rename it to
rb_iv_tbl_copy now. If we face other use case than iv_tbl, we may want
to rename it to more general name.
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When Object#to_enum is passed a block, the block is called to get
a size with the arguments given to to_enum. This calls the block
with the same keyword flag as to_enum is called with.
This requires adding rb_check_funcall_kw and
rb_check_funcall_default_kw to handle keyword flags.
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If defined in Ruby, dig would be defined as def dig(arg, *rest) end,
it would not use keywords. If the last dig argument was an empty
hash, it could be treated as keyword arguments by the next dig
method. Allow dig to pass along the empty keyword flag if called
with an empty keyword, to suppress the previous behavior and force
treating the hash as a positional argument and not keywords.
Also handle the case where dig calls method_missing, passing the
empty keyword flag to that as well.
This requires adding rb_check_funcall_with_hook_kw functions, so
that dig can specify how arguments are treated. It also adds
kw_splat arguments to a couple static functions.
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I noticed that in case of cache misshit, re-calculated cc->me can
be the same method entry than the pevious one. That is an okay
situation but can't we partially reuse the cache, because cc->call
should still be valid then?
One thing that has to be special-cased is when the method entry
gets amended by some refinements. That happens behind-the-scene
of call cache mechanism. We have to check if cc->me->def points to
the previously saved one.
Calculating -------------------------------------
trunk ours
vm2_poly_same_method 1.534M 2.025M i/s - 6.000M times in 3.910203s 2.962752s
Comparison:
vm2_poly_same_method
ours: 2025143.9 i/s
trunk: 1534447.2 i/s - 1.32x slower
Notes:
Merged: https://github.com/ruby/ruby/pull/2468
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Remove rb_add_empty_keyword, and instead of calling that every
place you need to add empty keyword hashes, run that code in
a single static function in vm_eval.c.
Add 4 defines to include/ruby/ruby.h, these are to be used as
int kw_splat values when calling the various rb_*_kw functions:
RB_NO_KEYWORDS :: Do not pass keywords
RB_PASS_KEYWORDS :: Pass final argument (which should be hash) as keywords
RB_PASS_EMPTY_KEYWORDS :: Add an empty hash to arguments and pass as keywords
RB_PASS_CALLED_KEYWORDS :: Passes same keyword type as current method was
called with (for method delegation)
rb_empty_keyword_given_p needs to stay. It is required if argument
delegation is done but delayed to a later point, which Enumerator
does.
Use RB_PASS_CALLED_KEYWORDS in rb_call_super to correctly
delegate keyword arguments to super method.
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"GCC diagnostic push/pop" seems appeared at gcc 4.6.
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Method#call, UnboundMethod#bind_call
Also add keyword argument separation warnings for Class#new and Method#call.
To allow for keyword argument to required positional hash converstion in
cfuncs, add a vm frame flag indicating the cfunc was called with an empty
keyword hash (which was removed before calling the cfunc). The cfunc can
check this frame flag and add back an empty hash if it is passing its
arguments to another Ruby method. Add rb_empty_keyword_given_p function
for checking if called with an empty keyword hash, and
rb_add_empty_keyword for adding back an empty hash to argv.
All of this empty keyword argument support is only for 2.7. It will be
removed in 3.0 as Ruby 3 will not convert empty keyword arguments to
required positional hash arguments. Comment all of the relevent code
to make it obvious this is expected to be removed.
Add rb_funcallv_kw as an public C-API function, just like rb_funcallv
but with a keyword flag. This is used by rb_obj_call_init (internals
of Class#new). This also required expected call_type enum with
CALL_FCALL_KW, similar to the recent addition of CALL_PUBLIC_KW.
Add rb_vm_call_kw as a internal function, used by call_method_data
(internals of Method#call and UnboundMethod#bind_call). Add tests
for UnboundMethod#bind_call keyword handling.
Notes:
Merged: https://github.com/ruby/ruby/pull/2432
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Make rb_sym_proc_call take a flag for whether a keyword argument
is used, and use the new rb_funcall_with_block_kw function to
pass that information.
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Requested by ko1. Also, because now that this function is internal
use only, why not just directly use struct rb_call_cache to purge
the ZALLOC.
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This fixes MJIT after rb_hash_stlike_foreach used vm_args.c.
Notes:
Merged: https://github.com/ruby/ruby/pull/2395
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Treat the ** syntax as passing a copy of the hash as the last
positional argument. If the hash being double splatted is empty, do
not add a positional argument.
Remove rb_no_keyword_hash, no longer needed.
Notes:
Merged: https://github.com/ruby/ruby/pull/2395
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And, allow non-symbol keys as a keyword arugment
Notes:
Merged: https://github.com/ruby/ruby/pull/2395
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After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is
dangerous and should be extinct. This function has only one call site
so adding appropriate prototype is trivial.
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After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is
dangerous and should be extinct. There is only one usage of
MEMO::u3::func in load.c (where void Init_Foobar(vodi) is registered)
so why not just be explicit.
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After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is
dangerous and should be extinct. This commit adds function prototypes
for rb_hash_foreach / st_foreach_safe. Also fixes some prototype
mismatches.
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After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is
dangerous and should be extinct. This commit deletes ANYARGS from
rb_ensure, which also revealed many arity / type mismatches.
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After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, 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.
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Ko1 missed this in d5893b91faa7dc77ca6c9728d1054dabd757aead.
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rp() macro for debug also shows file location and function name
such as:
[OBJ_INFO:rb_call_inits@inits.c:73] 0x000056147741b248 ...
Notes:
Merged-By: ko1
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And pass rb_execution_context_t as an argument.
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