By the way, the original patch of r63988 was provided by wanabe:
https://github.com/wanabe/ruby/tree/local-stack
but I forgot to add his credit in the previous commit message.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63990 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This optimization was reverted on r63863, but this commit resurrects the
optimization to skip some sp motions on JIT execution.
tool/ruby_vm/views/_mjit_compile_insn_body.erb: ditto
tool/ruby_vm/views/_mjit_compile_insn.erb: ditto
insns.def: resurrect handles_frame as handles_stack, which was deleted
on r63763.
tool/ruby_vm/models/bare_instructions.rb: ditto
vm_insnhelper.c: prevent moving sp outside insns.def to allow modifying
it by JIT.
* Optcarrot benchmark
$ benchmark-driver benchmark.yml --rbenv 'before --jit;after --jit' --repeat-count 12 -v
before --jit: ruby 2.6.0dev (2018-07-17 trunk 63987) +JIT [x86_64-linux]
after --jit: ruby 2.6.0dev (2018-07-17 local-stack 63987) +JIT [x86_64-linux]
last_commit=mjit_compile.c: resurrect local variable stack
Calculating -------------------------------------
before --jit after --jit
Optcarrot Lan_Master.nes 70.518 72.144 fps
Comparison:
Optcarrot Lan_Master.nes
after --jit: 72.1 fps
before --jit: 70.5 fps - 1.02x slower
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63988 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
r63655 was tightly coupled to handle_frames and some assumptions seems
to have been broken by r63763.
To partially resolve Bug#14892, this reverts the optimization for now. I
want to make MJIT CI happy first and then I'll probably retry r63655 by
partially reverting r63763 for sp changes.
The skipped test is not fixed yet.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63863 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
I introduced this mechanism in r62051 to speed things up. Later it
was reported that the change causes problems. I searched for
workarounds but nothing seemed appropriate. I hereby officially
give it up. The idea to move ADD_PC around was a mistake.
Fixes [Bug #14809] and [Bug #14834].
Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63763 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This is a pure refactoring. I see no difference in this change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63756 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (checktype): split branchiftype to checktype and
branchif, to make branch condition negation possible.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63225 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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
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
if catch_except_p is FALSE. If catch_except_p is TRUE, stack values
should be on VM's stack when exception is thrown and the JIT-ed frame
is re-executed by VM's exception handler. If it's FALSE, the JIT-ed
frame won't be re-executed and don't need to keep values on VM's stack.
Using local variables allows us to reduce cfp->sp motion. Moving cfp->sp
is needed only for insns whose handles_frame? is false. So it improves
performance.
_mjit_compile_insn.erb: Prepare `stack_size` variable for GET_SP,
STACK_ADDR_FROM_TOP, TOPN macros. Share pc and sp motion partial view.
Use cancel handler created in mjit_compile.c.
_mjit_compile_send.erb: ditto. Also, when iseq->body->catch_except_p is
TRUE, this stops to call mjit_exec directly. I described the reason in
vm_insnhelper.h's comment for EXEC_EC_CFP.
_mjit_compile_pc_and_sp.erb: Shared logic for moving sp and pc. As you
can see from thsi file, when status->local_stack_p is TRUE and
insn.handles_frame? is false, moving sp is skipped. But if
insn.handles_frame? is true, values should be rolled back to VM's stack.
common.mk: add dependency for the file
_mjit_compile_insn_body.erb: Set sp value before canceling JIT on
DISPATCH_ORIGINAL_INSN. Replace GET_SP, STACK_ADDR_FROM_TOP, TOPN macros
for the case ocal_stack_p is TRUE and insn.handles_frame? is false.
In that case, values are not available on VM's stack and those macros
should be replaced.
mjit_compile.inc.erb: updated comments of macros which are supported by
JIT compiler. All references to `cfp->sp` should be replaced and thus
INC_SP, SET_SV, PUSH are no longer supported for now, because they are
not used now.
vm_exec.h: moved EXEC_EC_CFP definition to vm_insnhelper.h because it's
tighly coupled to CALL_METHOD.
vm_insnhelper.h: Have revised EXEC_EC_CFP definition moved from vm_exec.h.
Now it triggers mjit_exec for VM, and has the guard for catch_except_p
on JIT-ed code. See comments for details. CALL_METHOD delegates
triggering mjit_exec to EXEC_EC_CFP.
insns.def: Stopped using EXEC_EC_CFP for the case we don't want to
trigger mjit_exec. Those insns (defineclass, opt_call_c_function) are
not supported by JIT and it's safe to use RESTORE_REGS(), NEXT_INSN().
expandarray is changed to pass GET_SP() to replace the macro in
_mjit_compile_insn_body.erb.
vm_insnhelper.c: change to take sp for the above reason.
[close https://github.com/ruby/ruby/pull/1828]
This patch resurrects the performance which was attached in
[Feature #14235].
* Benchmark
Optcarrot (with configuration for benchmark_driver.gem)
https://github.com/benchmark-driver/optcarrot
$ benchmark-driver benchmark.yml --verbose 1 --rbenv 'before;before+JIT::before,--jit;after;after+JIT::after,--jit' --repeat-count 10
before: ruby 2.6.0dev (2018-03-04 trunk 62652) [x86_64-linux]
before+JIT: ruby 2.6.0dev (2018-03-04 trunk 62652) +JIT [x86_64-linux]
after: ruby 2.6.0dev (2018-03-04 local-variable.. 62652) [x86_64-linux]
last_commit=mjit_compile.c: use local variables for stack
after+JIT: ruby 2.6.0dev (2018-03-04 local-variable.. 62652) +JIT [x86_64-linux]
last_commit=mjit_compile.c: use local variables for stack
Calculating -------------------------------------
before before+JIT after after+JIT
optcarrot 53.552 59.680 53.697 63.358 fps
Comparison:
optcarrot
after+JIT: 63.4 fps
before+JIT: 59.7 fps - 1.06x slower
after: 53.7 fps - 1.18x slower
before: 53.6 fps - 1.18x slower
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62655 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (getinlinecache): Qnil is a valid value as a constant.
this can be observable when accessing a deprecated constant
which is nil. non-nil constant is warned just once for each
location, but every time if it is nil.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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
Now that sp_inc attributes are officially provided as inline
functions. Why not use them directly from the vm core, not just
by the compiler. By doing so, it is now possible for us to
optimize stack manipulations. We can now know exactly how many
words of stack space an instruction consumes before it actually
does. This changeset deletes some lines from insns.def because
they are no longer needed. As a result it reduces the size of
vm_exec_core function from 32,400 bytes to 32,352 bytes on my
machine.
It seems it does not affect performance:
-----------------------------------------------------------
benchmark results:
minimum results in each 3 measurements.
Execution time (sec)
name before after
loop_for 1.093 1.061
loop_generator 1.156 1.152
loop_times 0.982 0.974
loop_whileloop 0.549 0.587
loop_whileloop2 0.115 0.121
Speedup ratio: compare with the result of `before' (greater is better)
name after
loop_for 1.030
loop_generator 1.003
loop_times 1.008
loop_whileloop 0.935
loop_whileloop2 0.949
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62087 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
It says "warning C4146: unary minus operator applied
to unsigned type, result still unsigned"
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61794 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
- Gave up @j comments
- Room for sp_inc to be a proper grammer element
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61782 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
- Gave up @j comments
- Room for sp_inc to be a proper grammer element
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61729 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (getblockparamproxy): introduce new instruction to return
the `rb_block_param_proxy` object if possible. This object responds
to `call` method and invoke given block (completely similar to `yield`).
* method.h (OPTIMIZED_METHOD_TYPE_BLOCK_CALL): add new optimized call type
which is for `rb_block_param_proxy.cal`.
* vm_insnhelper.c (vm_call_method_each_type): ditto.
* vm_insnhelper.c (vm_call_opt_block_call): ditto.
* vm_core.h (BOP_CALL, PROC_REDEFINED_OP_FLAG): add check for `Proc#call`
redefinition.
* compile.c (iseq_compile_each0): compile to use new insn
`getblockparamproxy` for method call.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61659 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_insnhelper.c (vm_call_opt_call): do same process of `yield` instead of
invoking `Proc`.
* vm_insnhelper.c (vm_invoke_block): invoke given block handler instead of
using a block handler in the current frame.
Also do not check blcok handler here (caller should check it).
* insns.def (invokeblock): catch up this fix.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (checkkeyword): adjust argument type to
vm_check_keyword as lindex_t.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61420 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2.5's line coverage measurement was about two times slower than 2.4
because of two reasons; (1) vm_trace uses rb_iseq_event_flags (which
takes O(n) currently where n is the length of iseq) to get an event
type, and (2) RUBY_EVENT_LINE uses setjmp to call an event hook.
This change adds a special event for line coverage,
RUBY_EVENT_COVERAGE_LINE, and adds `tracecoverage` instructions where
the event occurs in iseq.
`tracecoverage` instruction calls an event hook without vm_trace.
And, RUBY_EVENT_COVERAGE_LINE is an internal event which does not
use setjmp.
This change also cancells lineno change due to the deletion of trace
instructions [Feature #14104]. So fixes [Bug #14191].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/instruction.rb: create `trace_` prefix instructions.
* compile.c (ADD_TRACE): do not add `trace` instructions but add
TRACE link elements. TRACE elements will be unified with a next
instruction as instruction information.
* vm_trace.c (update_global_event_hook): modify all ISeqs when
hooks are enabled.
* iseq.c (rb_iseq_trace_set): added to toggle `trace_` instructions.
* vm_insnhelper.c (vm_trace): added.
This function is a body of `trace_` prefix instructions.
* vm_insnhelper.h (JUMP): save PC to a control frame.
* insns.def (trace): removed.
* vm_exec.h (INSN_ENTRY_SIG): add debug output (disabled).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60763 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix compile errors for OPT_CALL_THREADED_CODE (in vm_opts.h).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60493 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_insnhelper.c (vm_search_super_method): accepts `ec` instead of `th`.
Surprisingly, it doesn't use `th` (now `ec`) so this patch is for
the future extension.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60471 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
to represent execution context [Feature #14038]
* vm_core.h (rb_thread_t): rb_thread_t::ec is now a pointer.
There are many code using `th` to represent execution context
(such as cfp, VM stack and so on). To access `ec`, they need to
use `th->ec->...` (adding one indirection) so that we need to
replace them by passing `ec` instead of `th`.
* vm_core.h (GET_EC()): introduced to access current ec. Also
remove `ruby_current_thread` global variable.
* cont.c (rb_context_t): introduce rb_context_t::thread_ptr instead of
rb_context_t::thread_value.
* cont.c (ec_set_vm_stack): added to update vm_stack explicitly.
* cont.c (ec_switch): added to switch ec explicitly.
* cont.c (rb_fiber_close): added to terminate fibers explicitly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60440 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[Feature #14045]
* insns.def (getblockparam, setblockparam): add special access
instructions for block parameters.
getblockparam checks VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM and
if it is not set this instruction creates a Proc object from
a given blcok and set VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM.
setblockparam is similar to setlocal, but set
VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM.
* compile.c: use get/setblockparm instead get/setlocal instructions.
Note that they are used for method local block parameters (def m(&b)),
not for block local method parameters (iter{|&b|).
* proc.c (get_local_variable_ptr): creates Proc object for
Binding#local_variable_get/set.
* safe.c (safe_setter): we need to create Proc objects for postponed
block parameters when $SAFE is changed.
* vm_args.c (args_setup_block_parameter): used only for block local blcok
parameters.
* vm_args.c (vm_caller_setup_arg_block): if called with
VM_CALL_ARGS_BLOCKARG_BLOCKPARAM flag then passed block values should be
a block handler.
* test/ruby/test_optimization.rb: add tests.
* benchmark/bm_vm1_blockparam*: added.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60397 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (intern): new instruction to turn string into symbol.
opt_call_c_function can not dump.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59951 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (iseq_compile_each0): insert to_s method call, so that
refinements activated at the caller should take place.
[Feature #13812]
* insns.def (tostring): fix up converted object to a string,
infect and fallback.
* insns.def (branchiftype): new instruction for conversion.
branches if TOS is an instance of the given type.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59950 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This is needed for passing to the hook function the measuring target
type (line/branch/method) and the site of coverage event fired.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59871 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Sometimes, size of a hash can be calcluated a priori. By providing
such info to the constructor we can avoid unnecessary internal re-
allocations. This can boost for instance creation of hash literals.
[Bug #13861]
Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59744 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
is_local argument was introduced on r11639 and removed on r11813.
* insns.def (getinstancevariable, setinstancevariable): Remove a not
exist argument.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_insnhelper.c (vm_stack_consistency_error): extracted from
insns.def for further info in the future.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59149 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* debug_counter.h: add the following counters:
* lvar_get: counter for lvar get.
* lvar_get_dynamic: counter for lvar get from upper frames.
* lvar_set: coutner for lvar set.
* lvar_set_dynamic: coutner for lvar set from upper frames.
* lvar_set_slowpath: counter for lavr set using slowpath.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* st.c (rb_hash_bulk_insert): new API to bulk insert entries
into a hash. Given arguments are first inserted into the
table at once, then reindexed. This is faster than inserting
things using rb_hash_aset() one by one.
This arrangement (rb_ prefixed function placed in st.c) is
unavoidable because it both touches table internal and write
barrier at once.
* internal.h: delcare the new function.
* hash.c (rb_hash_s_create): use the new function.
* vm.c (core_hash_merge): ditto.
* insns.def (newhash): ditto.
* test/ruby/test_hash.rb: more coverage on hash creation.
* test/ruby/test_literal.rb: ditto.
-----------------------------------------------------------
benchmark results:
minimum results in each 7 measurements.
Execution time (sec)
name before after
loop_whileloop2 0.136 0.137
vm2_bighash* 1.249 0.623
Speedup ratio: compare with the result of `before' (greater is better)
name after
loop_whileloop2 0.996
vm2_bighash* 2.004
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
We need to fix GC bug before merging this. Revert revisions
58452, 58435, 58434, 58428, 58427 in this order.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58463 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Same as rb_ary_tmp_new_from_values(), it reduces vm_exec_core binary
size from 26,176 bytes to 26,080 bytes. But this time, also with a
bit of optimizations:
- Because we are allocating a new hash and no back references are
introduced at all, we can safely skip write barriers.
- Also, the iteration never recurs. We can avoid complicated
function callbacks by using st_insert instead of st_update.
----
* hash.c (rb_hash_new_from_values): refactor
extract the bulk insert into a function.
* hash.c (rb_hash_new_from_object): also refactor.
* hash.c (rb_hash_s_create): use the new functions.
* insns.def (newhash): ditto.
* vm.c (core_hash_from_ary): ditto.
* iternal.h: export the new function.
-----------------------------------------------------------
benchmark results:
minimum results in each 7 measurements.
Execution time (sec)
name before after
loop_whileloop2 0.135 0.134
vm2_bighash* 1.236 0.687
Speedup ratio: compare with the result of `before' (greater is better)
name after
loop_whileloop2 1.008
vm2_bighash* 1.798
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Found a part where copy&paste can be eliminated. Reduces vm_exec_core
from 26,228 bytes to 26,176 bytes in size on my machine. I believe it
does not affect any runtime performance.
----
* array.c (rb_ary_tmp_new_from_values): extend existing
rb_ary_new_from_values function so that it can take
additional value for klass.
* array.c (rb_ary_new_from_values): use the new function.
* insns.def (toregexp): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58416 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (trace): use cast `flag` to pass compilation with clang on MacOSX.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58394 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Contemporary C compilers are good at function inlining. They fold
multiple functions into one. However they are not yet smart enough to
unfold a function into several ones. So generally speaking, it is
wiser for a C programmer to manually split C functions whenever
possible. That should make rooms for compilers to optimize at will.
Before this changeset insns.def was converted into single HUGE
function called vm_exec_core(). By moving each instruction's core
into individual functions, generated C source code is reduced from
3,428 lines to 2,847 lines. Looking at the generated assembly
however, it seems my compiler (gcc 6.2) is extraordinary smart so that
it inlines almost all functions I introduced in this changeset back
into that vm_exec_core. On my machine compiled machine binary of the
function does not shrink very much in size (28,432 bytes to 26,816
bytes, according to nm(1)).
I believe this change is zero-cost. Several benchmarks I exercised
showed no significant difference beyond error mergin. For instance
3 repeated runs of optcarrot benchmark on my machine resulted in:
before this: 28.330329285707490, 27.513378371065920, 29.40420215754537
after this: 27.107195867280414, 25.549324021385907, 30.31581919050884
in fps (greater==faster).
----
* internal.h (rb_obj_not_equal): used from vm_insnhelper.c
* insns.def: move vast majority of lines into vm_insnhelper.c
* vm_insnhelper.c: moved here.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Unfortunately this enlarges insns.def by yet another
instruction. However, it is much prettier than opt_str_freeze
in use, and maybe we can avoid having so many instructions in
the future.
[ruby-core:80368]
* insns.def (DEFINE_INSN): new instruction: opt_str_uminus (maybe temporary)
* compile.c (iseq_compile_each0): split instructions
* test/ruby/test_optimization.rb (test_string_uminus): new test
* vm.c (vm_init_redefined_flag): set redefinintion flag for uminus
* vm_core.h (enum ruby_basic_operators): add BOP_UMINUS
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58144 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is auto-generated using following command:
svn diff -r57807:57788 include internal.h bignum.c numeric.c compile.c insns.def object.c sprintf.c | patch -p0
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57818 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Looking at the source code, FIXABLE tends to be just before LOING2FIX
to check applicability of that operation. Why not try computing first
then check for overflow, which should be optimial.
I also tried the same thing for unsigned types but resulted in slower
execution. It seems RB_POSFIXABLE() is fast enough on modern CPUs.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57789 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
NOTE:
(1) Fixnum's LSB is always 1.
It means you can always run `x - 1` without overflow.
(2) Of course `z = x + (y-1)` may overflow.
Now z's LSB is always 1, and the MSB of true result is also 1.
You can get true result in long as `(1<<63)|(z>>1)`,
and it equals to `(z<<63)|(z>>1)` == `ror(z)`.
GCC and Clang have __builtin_add_ovewflow:
* https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html
* https://clang.llvm.org/docs/LanguageExtensions.html#checked-arithmetic-builtins
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Patch by Eric Wong [ruby-core:78797].
I don't like the idea of making insns.def any bigger to support
a corner case, and "test_hash_aref_fstring_identity" shows
how contrived this is.
[ruby-core:78783] [Bug #12855]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57278 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (checkmatch): adjust type of the index variable, to
get rid of (potential) overflow.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (opt_case_dispatch): extract float value only if the
Float method is not redefnined.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[Bug #12628]
This patch introduce many changes.
* Introduce concept of "Block Handler (BH)" to represent
passed blocks.
* move rb_control_frame_t::flag to ep[0] (as a special local
variable). This flags represents not only frame type, but also
env flags such as escaped.
* rename `rb_block_t` to `struct rb_block`.
* Make Proc, Binding and RubyVM::Env objects wb-protected.
Check [Bug #12628] for more details.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55766 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
instead of setting rb_thread_t::cfp directly.
* vm_insnhelper.c (vm_pop_frame): return the result of
finish frame or not.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55755 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
compilers to use x86 LEA instruction (3 operand).
Even if 3 operand LEA's latency is 3 cycle after SandyBridge,
it reduces code size and can be faster because of super scalar.
* insns.def (opt_plus): calculate and use rb_int2big.
On positive Fixnum overflow, `recv - 1 + obj` doesn't carry
because recv's msb and obj's msb are 0, and resulted msb is 1.
Therefore simply rshift and cast as signed long works fine.
On negative Fixnum overflow, it will carry because both arguments'
msb are 1, and resulted msb is also 1.
In this case it needs to restore carried sign bit after rshift.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* [Feature #12005] Unify Fixnum and Bignum into Integer
* include/ruby/ruby.h (rb_class_of): Return rb_cInteger for fixnums.
* insns.def (INTEGER_REDEFINED_OP_FLAG): Unified from
FIXNUM_REDEFINED_OP_FLAG and BIGNUM_REDEFINED_OP_FLAG.
* vm_core.h: Ditto.
* vm_insnhelper.c (opt_eq_func): Use INTEGER_REDEFINED_OP_FLAG instead
of FIXNUM_REDEFINED_OP_FLAG.
* vm.c (vm_redefinition_check_flag): Use rb_cInteger instead of
rb_cFixnum and rb_cBignum.
(C): Use Integer instead of Fixnum and Bignum.
* numeric.c (fix_succ): Removed.
(Init_Numeric): Define Fixnum as Integer.
* bignum.c (bignew): Use rb_cInteger instead of Rb_cBignum.
(rb_int_coerce): replaced from rb_big_coerce and return fixnums
as-is.
(Init_Bignum): Define Bignum as Integer.
Don't define ===.
* error.c (builtin_class_name): Return "Integer" for fixnums.
* sprintf.c (ruby__sfvextra): Use rb_cInteger instead of rb_cFixnum.
* ext/-test-/testutil: New directory to test.
Currently it provides utilities for fixnum and bignum.
* ext/json/generator/generator.c: Define mInteger_to_json.
* lib/mathn.rb (Fixnum#/): Redefinition removed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
superclass of a class as Object and it has another superclass.
[Bug #12367] [ruby-core:75446]
* test/ruby/test_class.rb: test for above.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54970 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
and define CONSTFUNC and PUREFUNC if available.
Note that I don't add those options as default because
it still shows many false-positive (it seems not to consider
longjmp).
* vm_eval.c (stack_check): get rb_thread_t* as an argument
to avoid duplicate call of GET_THREAD().
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
x == FIXNUM_MIN && y == -1. This must be a rare case and it is
expected compiler to handle well.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54216 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
but LONG_LONG is always defined as 64bit), or there's int128_t.
* internal.h (DL2NUM): defined if DLONG is defined.
* internal.h (rb_fix_mul_fix): defined for `Fixnum * Fixnum`.
* insns.def (opt_mul): use rb_fix_mul_fix().
* numeric.c (fix_mul): ditto.
* time.c (mul): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Now `[x, y].max` is optimized so that a temporal array object is not
created in some condition.
* insns.def (opt_newarray_max, opt_newarray_min): added.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54153 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* bignum.c (rb_uint128t2big): added for opt_mult.
* bignum.c (rb_uint128t2big): added for rb_uint128t2big..
* configure.in: define int128_t, uint128_t and related MACROs.
Initially introduced by r41379 but reverted by r50749.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53741 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The position of `/* fall through */` was moved by r52931.
* insns.def (opt_case_dispatch): Move a comment to the
appropriate position.
[ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53423 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Infinity cannot be written as an optimizable literal,
so it can never match a key in a CDHASH.
Avoid converting it to prevent FloatDomainError.
* insns.def (opt_case_dispatch): avoid converting Infinity
* test/ruby/test_optimization.rb (test_opt_case_dispatch_inf): new
[ruby-dev:49423] [Bug #11804]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53039 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
and a pre-compilation/runtime loader sample.
[Feature #11788]
* iseq.c: add new methods:
* RubyVM::InstructionSequence#to_binary_format(extra_data = nil)
* RubyVM::InstructionSequence.from_binary_format(binary)
* RubyVM::InstructionSequence.from_binary_format_extra_data(binary)
* compile.c: implement body of this new feature.
* load.c (rb_load_internal0), iseq.c (rb_iseq_load_iseq):
call RubyVM::InstructionSequence.load_iseq(fname) with
loading script name if this method is defined.
We can return any ISeq object as a result value.
Otherwise loading will be continue as usual.
This interface is not matured and is not extensible.
So that we don't guarantee the future compatibility of this method.
Basically, you should'nt use this method.
* iseq.h: move ISEQ_MAJOR/MINOR_VERSION (and some definitions)
from iseq.c.
* encoding.c (rb_data_is_encoding), internal.h: added.
* vm_core.h: add several supports for lazy load.
* add USE_LAZY_LOAD macro to specify enable or disable of
this feature.
* add several fields to rb_iseq_t.
* introduce new macro rb_iseq_check().
* insns.def: some check for lazy loading feature.
* vm_insnhelper.c: ditto.
* proc.c: ditto.
* vm.c: ditto.
* test/lib/iseq_loader_checker.rb: enabled iff suitable
environment variables are provided.
* test/runner.rb: enable lib/iseq_loader_checker.rb.
* sample/iseq_loader.rb: add sample compiler and loader.
$ ruby sample/iseq_loader.rb [dir]
will compile all ruby scripts in [dir].
With default setting, this compile creates *.rb.yarb files
in same directory of target .rb scripts.
$ ruby -r sample/iseq_loader.rb [app]
will run with enable to load compiled binary data.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
nil/true/false are special literals just like floats, integers,
literal strings, and symbols. Optimize when statements with
them by using a jump table, too.
target 0: a (ruby 2.3.0dev (2015-12-08 trunk 52928) [x86_64-linux]) at "/home/ew/rrrr/b/ruby"
target 1: b (ruby 2.3.0dev (2015-12-08 master 52928) [x86_64-linux]) at "/home/ew/ruby/b/ruby"
benchmark results:
minimum results in each 5 measurements.
Execution time (sec)
name a b
loop_whileloop2 0.102 0.103
vm2_case_lit* 1.657 0.549
Speedup ratio: compare with the result of `a' (greater is better)
name b
loop_whileloop2 0.988
vm2_case_lit* 3.017
* benchmark/bm_vm2_case_lit.rb: new benchmark
* compile.c (case_when_optimizable_literal): add nil/true/false
* insns.def (opt_case_dispatch): ditto
* vm.c (vm_redefinition_check_flag): ditto
* vm.c (vm_init_redefined_flag): ditto
* vm_core.h: ditto
* object.c (InitVM_Object): define === explicitly for nil/true/false
* test/ruby/test_case.rb (test_deoptimize_nil): new test
* test/ruby/test_optimization.rb (test_opt_case_dispatch): update
(test_eqq): new test
[ruby-core:71923] [Feature #11769]
Original patch by Aaron Patterson <tenderlove@ruby-lang.org>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52931 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The missing check for Float#=== redefinition was noticed while
working on enhancing optimized case dispatch for nil/true/false
in [ruby-core:71818] https://bugs.ruby-lang.org/issues/11769
So no, I don't normally redefine core classes like this :P
* insns.def (opt_case_dispatch): check Float#=== redefinition
* test/ruby/test_optimization.rb (test_opt_case_dispatch): new
[ruby-core:71920] [Bug #11784]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
strings as default.
[Feature #11725]
* insns.def (freezestring): add new instruction to support adding
debug information for dynamically constracted strings.
* compile.c (iseq_compile_each): support adding debug information
for NODE_DSTR with freezestring instruction.
* error.c (rb_error_frozen): change the debug information ID name
id_debug_created_info and this field should have a 2 element array
containing path and line information.
* defs/id.def: ditto.
* test/ruby/test_rubyoptions.rb: catch up this fix.
* test/ruby/test_iseq.rb: now frozen strings are not same.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52688 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
current cref only when cached CREF list includes singleton class.
Singleton classes have own namespaces, so that we need to check
cref as a key (#10943).
However, if current CREF list does not include singleton class,
no need to check CREF beacuse it should be same name space.
* vm_insnhelper.c (vm_get_const_key_cref): add a function returns
CREF only when it includes singleton class.
* vm_core.h: constify iseq_inline_cache_entry::ic_cref.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52371 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h (RUBY_DTRACE_CREATE_HOOK): macro to call hook at
object creation.
* vm.c (rb_source_location, rb_source_loc): retrieve source path
and line number at once.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52340 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (iseq_peephole_optimize): peephole optimization for
branchnil jumps.
* compile.c (iseq_compile_each): generate save navigation operator
code.
* insns.def (branchnil): new opcode to pop the tos and branch if
it is nil.
* parse.y (NEW_QCALL, call_op, parser_yylex): parse token '.?'.
[Feature #11537]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52214 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* compile.c (compile_dstr_fragments): fix performance by omitting
the first empty string only for keeping literal encoding if
other literals are too. [ruby-core:70930] [Bug #11556]
* string.c (rb_str_append_literal): append but keep encoding non
US-ASCII.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51970 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* rb_call_info (ci) has compiled fixed information.
* if ci->flag & VM_CALL_KWARG, then rb_call_info is
also rb_call_info_with_kwarg. This technique reduce one word
for major rb_call_info data.
* rb_calling_info has temporary data (argc, blockptr, recv).
for each method dispatch. This data is allocated only on
machine stack.
* rb_call_cache is for inline method cache.
Before this patch, only rb_call_info_t data is passed.
After this patch, above three structs are passed.
This patch improves:
* data locarity (rb_call_info is now read-only data).
* reduce memory consumption (rb_call_info_with_kwarg,
rb_calling_info).
* compile.c: use above data.
* insns.def: ditto.
* iseq.c: ditto.
* vm_args.c: ditto.
* vm_eval.c: ditto.
* vm_insnhelper.c: ditto.
* vm_insnhelper.h: ditto.
* iseq.h: add iseq_compile_data::ci_index and
iseq_compile_data::ci_kw_indx.
* tool/instruction.rb: introduce TS_CALLCACHE operand type.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51903 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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].
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rb_control_frame_t::klass.
[Bug #11278], [Bug #11279]
rb_method_entry_t data belong to modules/classes.
rb_method_entry_t::owner points defined module or class.
module M
def foo; end
end
In this case, owner is M.
rb_callable_method_entry_t data belong to only classes.
For modules, MRI creates corresponding T_ICLASS internally.
rb_callable_method_entry_t can also belong to T_ICLASS.
rb_callable_method_entry_t::defined_class points T_CLASS or
T_ICLASS.
rb_method_entry_t data for classes (not for modules) are also
rb_callable_method_entry_t data because it is completely same data.
In this case, rb_method_entry_t::owner == rb_method_entry_t::defined_class.
For example, there are classes C and D, and incldues M,
class C; include M; end
class D; include M; end
then, two T_ICLASS objects for C's super class and D's super class
will be created.
When C.new.foo is called, then M#foo is searcheed and
rb_callable_method_t data is used by VM to invoke M#foo.
rb_method_entry_t data is only one for M#foo.
However, rb_callable_method_entry_t data are two (and can be more).
It is proportional to the number of including (and prepending)
classes (the number of T_ICLASS which point to the module).
Now, created rb_callable_method_entry_t are collected when
the original module M was modified. We can think it is a cache.
We need to select what kind of method entry data is needed.
To operate definition, then you need to use rb_method_entry_t.
You can access them by the following functions.
* rb_method_entry(VALUE klass, ID id);
* rb_method_entry_with_refinements(VALUE klass, ID id);
* rb_method_entry_without_refinements(VALUE klass, ID id);
* rb_resolve_refined_method(VALUE refinements, const rb_method_entry_t *me);
To invoke methods, then you need to use rb_callable_method_entry_t
which you can get by the following APIs corresponding to the
above listed functions.
* rb_callable_method_entry(VALUE klass, ID id);
* rb_callable_method_entry_with_refinements(VALUE klass, ID id);
* rb_callable_method_entry_without_refinements(VALUE klass, ID id);
* rb_resolve_refined_method_callable(VALUE refinements, const rb_callable_method_entry_t *me);
VM pushes rb_callable_method_entry_t, so that rb_vm_frame_method_entry()
returns rb_callable_method_entry_t.
You can check a super class of current method by
rb_callable_method_entry_t::defined_class.
* method.h: renamed from rb_method_entry_t::klass to
rb_method_entry_t::owner.
* internal.h: add rb_classext_struct::callable_m_tbl to cache
rb_callable_method_entry_t data.
We need to consider abotu this field again because it is only
active for T_ICLASS.
* class.c (method_entry_i): ditto.
* class.c (rb_define_attr): rb_method_entry() does not takes
defiend_class_ptr.
* gc.c (mark_method_entry): mark RCLASS_CALLABLE_M_TBL() for T_ICLASS.
* cont.c (fiber_init): rb_control_frame_t::klass is removed.
* proc.c: fix `struct METHOD' data structure because
rb_callable_method_t has all information.
* vm_core.h: remove several fields.
* rb_control_frame_t::klass.
* rb_block_t::klass.
And catch up changes.
* eval.c: catch up changes.
* gc.c: ditto.
* insns.def: ditto.
* vm.c: ditto.
* vm_args.c: ditto.
* vm_backtrace.c: ditto.
* vm_dump.c: ditto.
* vm_eval.c: ditto.
* vm_insnhelper.c: ditto.
* vm_method.c: ditto.
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* insns.def (defineclass): do not quote unprintable characters at
raising an exception.
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* insns.def (defineclass): preserve encoding of name in error
messages for super class mismatch.
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* insns.def (defineclass): preserve encoding of name in error
messages for non-class super.
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* insns.def (defineclass): preserve encoding of name in error
messages when already defined but type mismatch.
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`flag' contains several categories of attributes and it makes us
confusion (at least, I had confused).
* rb_method_visibility_t (flags::visi)
* NOEX_UNDEF -> METHOD_VISI_UNDEF = 0
* NOEX_PUBLIC -> METHOD_VISI_PUBLIC = 1
* NOEX_PRIVATE -> METHOD_VISI_PRIVATE = 2
* NOEX_PROTECTED -> METHOD_VISI_PROTECTED = 3
* NOEX_SAFE(flag)) -> safe (flags::safe, 2 bits)
* NOEX_BASIC -> basic (flags::basic, 1 bit)
* NOEX_MODFUNC -> rb_scope_visibility_t in CREF
* NOEX_SUPER -> MISSING_SUPER (enum missing_reason)
* NOEX_VCALL -> MISSING_VCALL (enum missing_reason)
* NOEX_RESPONDS -> BOUND_RESPONDS (macro)
Now, NOEX_NOREDEF is not supported (I'm not sure it is needed).
Background:
I did not know what "NOEX" stands for.
I asked Matz (who made this name) and his answer was "Nothing".
"At first, it meant NO EXport (private), but the original
meaning was gone."
This is why I remove the mysterious word "NOEX" from MRI.
* vm_core.h: introduce `enum missing_reason' to represent
method_missing (NoMethodError) reason.
* eval_intern.h: introduce rb_scope_visibility_t to represent
scope visibility.
It has 3 method visibilities (public/private/protected)
and `module_function`.
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Motivation and new data structure are described in [Bug #11203].
This patch also solve the following issues.
* [Bug #11200] Memory leak of method entries
* [Bug #11046] __callee__ returns incorrect method name in orphan
proc
* test/ruby/test_method.rb: add a test for [Bug #11046].
* vm_core.h: remvoe rb_control_frame_t::me. me is located at value
stack.
* vm_core.h, gc.c, vm_method.c: remove unlinked_method... codes
because method entries are simple VALUEs.
* method.h: Now, all method entries has own independent method
definititons. Strictly speaking, this change is not essential,
but for future changes.
* rb_method_entry_t::flag is move to rb_method_definition_t::flag.
* rb_method_definition_t::alias_count is now
rb_method_definition_t::alias_count_ptr, a pointer to the counter.
* vm_core.h, vm_insnhelper.c (rb_vm_frame_method_entry) added to
search the current method entry from value stack.
* vm_insnhelper.c (VM_CHECK_MODE): introduced to enable/disable
assertions.
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rb_cref_t is data type of CREF. Now, the body is still NODE.
It is easy to understand what is CREF and what is pure NODE.
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* vm_core.h, method.h: remove rb_iseq_t::cref_stack. CREF is stored
to rb_method_definition_t::body.iseq_body.cref.
* vm_insnhelper.c: modify SVAR usage.
When calling ISEQ type method, push CREF information onto method
frame, SVAR located place. Before this fix, SVAR is simply nil.
After this patch, CREF (or NULL == Qfalse for not iseq methods)
is stored at the method invocation.
When SVAR is requierd, then put NODE_IF onto SVAR location,
and NDOE_IF::nd_reserved points CREF itself.
* vm.c (vm_cref_new, vm_cref_dump, vm_cref_new_toplevel): added.
* vm_insnhelper.c (vm_push_frame): accept CREF.
* method.h, vm_method.c (rb_add_method_iseq): added. This function
accepts iseq and CREF.
* class.c (clone_method): use rb_add_method_iseq().
* gc.c (mark_method_entry): mark method_entry::body.iseq_body.cref.
* iseq.c: remove CREF related codes.
* insns.def (getinlinecache/setinlinecache): CREF should be cache key
because a different CREF has a different namespace.
* node.c (rb_gc_mark_node): mark NODE_IF::nd_reserved for SVAR.
* proc.c: catch up changes.
* struct.c: ditto.
* insns.def: ditto.
* vm_args.c (raise_argument_error): ditto.
* vm_eval.c: ditto.
* test/ruby/test_class.rb: add a test.
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Time#succ is a deprecated method and not frequently used, so this wastes
icache in vm_exec_core. Using bloat-o-meter in the Linux kernel source
to shows a small reduction on my x86-64 system:
$ ~/linux/scripts/bloat-o-meter ruby.before ruby.after
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-57 (-57)
function old new delta
vm_exec_core 24216 24159 -57
[Feature #10501]
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keyword arguments/parameters and a splat argument.
[Feature #10440] (Details are described in this ticket)
Most of complex part is moved to vm_args.c.
Now, ISeq#to_a does not catch up new instruction format.
* vm_core.h: change iseq data structures.
* introduce rb_call_info_kw_arg_t to represent keyword arguments.
* add rb_call_info_t::kw_arg.
* rename rb_iseq_t::arg_post_len to rb_iseq_t::arg_post_num.
* rename rb_iseq_t::arg_keywords to arg_keyword_num.
* rename rb_iseq_t::arg_keyword to rb_iseq_t::arg_keyword_bits.
to represent keyword bitmap parameter index.
This bitmap parameter shows that which keyword parameters are given
or not given (0 for given).
It is refered by `checkkeyword' instruction described bellow.
* rename rb_iseq_t::arg_keyword_check to rb_iseq_t::arg_keyword_rest
to represent keyword rest parameter index.
* add rb_iseq_t::arg_keyword_default_values to represent default
keyword values.
* rename VM_CALL_ARGS_SKIP_SETUP to VM_CALL_ARGS_SIMPLE
to represent
(ci->flag & (SPLAT|BLOCKARG)) &&
ci->blockiseq == NULL &&
ci->kw_arg == NULL.
* vm_insnhelper.c, vm_args.c: rewrite with refactoring.
* rewrite splat argument code.
* rewrite keyword arguments/parameters code.
* merge method and block parameter fitting code into one code base.
* vm.c, vm_eval.c: catch up these changes.
* compile.c (new_callinfo): callinfo requires kw_arg parameter.
* compile.c (compile_array_): check the last argument Hash object or
not. If Hash object and all keys are Symbol literals, they are
compiled to keyword arguments.
* insns.def (checkkeyword): add new instruction.
This instruction check the availability of corresponding keyword.
For example, a method "def foo k1: 'v1'; end" is cimpiled to the
following instructions.
0000 checkkeyword 2, 0 # check k1 is given.
0003 branchif 9 # if given, jump to address #9
0005 putstring "v1"
0007 setlocal_OP__WC__0 3 # k1 = 'v1'
0009 trace 8
0011 putnil
0012 trace 16
0014 leave
* insns.def (opt_send_simple): removed and add new instruction
"opt_send_without_block".
* parse.y (new_args_tail_gen): reorder variables.
Before this patch, a method "def foo(k1: 1, kr1:, k2: 2, **krest, &b)"
has parameter variables "k1, kr1, k2, &b, internal_id, krest",
but this patch reorders to "kr1, k1, k2, internal_id, krest, &b".
(locate a block variable at last)
* parse.y (vtable_pop): added.
This function remove latest `n' variables from vtable.
* iseq.c: catch up iseq data changes.
* proc.c: ditto.
* class.c (keyword_error): export as rb_keyword_error().
* common.mk: depend vm_args.c for vm.o.
* hash.c (rb_hash_has_key): export.
* internal.h: ditto.
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* insns.def (getlocal,setlocal): add comment to def/opt_operand.def
I spent some time thinking about the same optimization before
realizing it was already done.
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We may tag the running_thread pointer to avoid making the "once" struct
bigger than "struct iseq_inline_cache_entry".
This only saves a small amount with "valgrind ruby -e exit"
before:
total heap usage: 48,122 allocs, 19,248 frees, 8,110,149 bytes allocated
after:
total heap usage: 48,122 allocs, 19,253 frees, 8,099,197 bytes allocated
* insns.def (once): define and use fake RUNNING_THREAD_ONCE_DONE
pointer to indicate is->once.running_thread is done.
* vm_core.h (iseq_inline_storage_entry): remove done field,
allowing the union to be reduced from 24=>16 bytes on 64-bit
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* insns.def (once), vm_insnhelper.c (vm_once_exec): turn the
parameter into a VALUE to get rid of type-punned pointer cast.
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* insns.def (opt_regexpmatch2): respect redefined match op
Thanks to Sam Rawlins for the fix.
* test/ruby/test_string.rb: test based on Tsuyoshi Sawada's report
[Bug #9581]
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* insns.def (opt_aref_with): new instruction to optimize Hash#[],
removing any allocation overhead when used with a string literal
key. Patch by normalperson (Eric Wong). [ruby-core:59640] [Bug #9382]
* insns.def (opt_aset_with): new instruction to optimize Hash#[]=
* compile.c (iseq_compile_each): compiler shortcuts for new
instructions
* hash.c (static VALUE rb_hash_compare_by_id_p): fix documentation for
Hash#compare_by_identity to reflect frozen string sharing
* test/ruby/test_hash.rb (class TestHash): test for new behavior
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vm_insnhelper.c, vm_insnhelper.h, vm_method.c: Rename method_serial
to global_method_state and constant_serial to global_constant_state
after discussion with ko1.
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method is called on a static string literal with no arguments.
* defs/id.def (firstline): add freeze so idFreeze is available
* insns.def (opt_str_freeze): add opt_str_freeze instruction which
pushes a frozen string literal without allocating a new object if
String#freeze is not overriden
* string.c (Init_String): define String#freeze
* vm.c (vm_init_redefined_flag): define BOP_FREEZE on String class as
a basic operation
* vm_insnhelper.h: ditto
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ic_serial. This is possible because these fields are only ever used
exclusively with each other.
* insns.def: ditto
* vm_core.h: ditto
* vm_insnhelper.c: ditto
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kazu
ko1
mame
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hsbt
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tmm1
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