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* [Bug #19611] Remove never-reachable branch in logical expressionNobuyoshi Nakada2023-04-271-24/+37
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* Adjust indent [ci skip]Nobuyoshi Nakada2023-04-191-10/+10
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* * expand tabs. [ci skip]git2023-04-191-7/+7
| | | | Please consider using misc/expand_tabs.rb as a pre-commit hook.
* Emit special instruction for array literal + .(hash|min|max)Aaron Patterson2023-04-181-12/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit introduces a new instruction `opt_newarray_send` which is used when there is an array literal followed by either the `hash`, `min`, or `max` method. ``` [a, b, c].hash ``` Will emit an `opt_newarray_send` instruction. This instruction falls back to a method call if the "interested" method has been monkey patched. Here are some examples of the instructions generated: ``` $ ./miniruby --dump=insns -e '[@a, @b].max' == disasm: #<ISeq:<main>@-e:1 (1,0)-(1,12)> (catch: FALSE) 0000 getinstancevariable :@a, <is:0> ( 1)[Li] 0003 getinstancevariable :@b, <is:1> 0006 opt_newarray_send 2, :max 0009 leave $ ./miniruby --dump=insns -e '[@a, @b].min' == disasm: #<ISeq:<main>@-e:1 (1,0)-(1,12)> (catch: FALSE) 0000 getinstancevariable :@a, <is:0> ( 1)[Li] 0003 getinstancevariable :@b, <is:1> 0006 opt_newarray_send 2, :min 0009 leave $ ./miniruby --dump=insns -e '[@a, @b].hash' == disasm: #<ISeq:<main>@-e:1 (1,0)-(1,13)> (catch: FALSE) 0000 getinstancevariable :@a, <is:0> ( 1)[Li] 0003 getinstancevariable :@b, <is:1> 0006 opt_newarray_send 2, :hash 0009 leave ``` [Feature #18897] [ruby-core:109147] Co-authored-by: John Hawthorn <jhawthorn@github.com>
* Move `catch_except_p` to `compile_data`eileencodes2023-04-111-13/+16
| | | | | | | | | | | | | | The `catch_except_p` flag is used for communicating between parent and child iseq's that a throw instruction was emitted. So for example if a child iseq has a throw in it and the parent wants to catch the throw, we use this flag to communicate to the parent iseq that a throw instruction was emitted. This flag is only useful at compile time, it only impacts the compilation process so it seems to be fine to move it from the iseq body to the compile_data struct. Co-authored-by: Aaron Patterson <tenderlove@ruby-lang.org>
* `vm_call_single_noarg_inline_builtin`Koichi Sasada2023-03-231-0/+4
| | | | | | | | If the iseq only contains `opt_invokebuiltin_delegate_leave` insn and the builtin-function (bf) is inline-able, the caller doesn't need to build a method frame. `vm_call_single_noarg_inline_builtin` is fast path for such cases.
* should not restore builtin_inline_indexKoichi Sasada2023-03-231-3/+0
| | | | | | | | `builtin_inline_index` is restored because THEN clause on `Primitive.mandatory_only?` was compiled twice. However, f29c9d6d36 skips to compile THEN clause so we don't need to restore `builtin_inline_index`.
* compile branch body if neededKoichi Sasada2023-03-171-34/+33
| | | | | | | | | | | | ```ruby if true THEN else ELSE end ``` On this case, ELSE is not needed so that only compile THEN part.
* `Hash#dup` for kwsplat argumentsKoichi Sasada2023-03-151-1/+13
| | | | | | | On `f(*a, **kw)` method calls, a rest keyword parameter is identically same Hash object is passed and it should make `#dup`ed Hahs. fix https://bugs.ruby-lang.org/issues/19526
* YJIT: Introduce no_gc attribute (#7511)Takashi Kokubun2023-03-141-0/+3
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* Rename builtin attr :inline to :leafTakashi Kokubun2023-03-111-3/+3
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* Support multiple attributes with Primitive.attr!Takashi Kokubun2023-03-111-6/+45
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* rename `defined_ivar` to `definedivar`Koichi Sasada2023-03-101-1/+1
| | | | because non-opt instructions should contain `_` char.
* Add defined_ivar instructionOle Friis Østergaard2023-03-081-3/+2
| | | | | | | | This is a variation of the `defined` instruction, for use when we are checking for an instance variable. Splitting this out as a separate instruction lets us skip some checks, and it also allows us to use an instance variable cache, letting shape analysis speed up the operation further.
* Constify function tablesNobuyoshi Nakada2023-03-081-2/+2
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* Stop exporting symbols for MJITTakashi Kokubun2023-03-061-1/+1
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* Change bytecode of `f(*a, **kw)`Koichi Sasada2023-03-061-81/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `f(*a, **kw)` is compiled to `f([*a, kw])` but it makes an dummy array, so change it to pass two arguments `a` and `kw` with calling flags. ``` ruby 3.2.0 (2022-12-29 revision a7d467a792) [x86_64-linux] Calculating ------------------------------------- foo() 15.354M (± 4.2%) i/s - 77.295M in 5.043650s dele() 13.439M (± 3.9%) i/s - 67.109M in 5.001974s dele(*) 6.265M (± 4.5%) i/s - 31.730M in 5.075649s dele(*a) 6.286M (± 3.3%) i/s - 31.719M in 5.051516s dele(*a, **kw) 1.926M (± 4.5%) i/s - 9.753M in 5.076487s dele(*, **) 1.927M (± 4.2%) i/s - 9.710M in 5.048224s dele(...) 5.871M (± 3.9%) i/s - 29.471M in 5.028023s forwardable 4.969M (± 4.1%) i/s - 25.233M in 5.087498s ruby 3.3.0dev (2023-01-13T01:28:00Z master 7e8802fa5b) [x86_64-linux] Calculating ------------------------------------- foo() 16.354M (± 4.7%) i/s - 81.799M in 5.014561s dele() 14.256M (± 3.5%) i/s - 71.656M in 5.032883s dele(*) 6.701M (± 3.8%) i/s - 33.948M in 5.074938s dele(*a) 6.681M (± 3.3%) i/s - 33.578M in 5.031720s dele(*a, **kw) 4.200M (± 4.4%) i/s - 21.258M in 5.072583s dele(*, **) 4.197M (± 5.3%) i/s - 21.322M in 5.096684s dele(...) 6.039M (± 6.8%) i/s - 30.355M in 5.052662s forwardable 4.788M (± 3.2%) i/s - 24.033M in 5.024875s ```
* Fix spelling (#7389)John Bampton2023-02-271-1/+1
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* Fix incorrect line numbers in GC hookPeter Zhu2023-02-241-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the previous instruction is not a leaf instruction, then the PC was incremented before the instruction was ran (meaning the currently executing instruction is actually the previous instruction), so we should not increment the PC otherwise we will calculate the source line for the next instruction. This bug can be reproduced in the following script: ``` require "objspace" ObjectSpace.trace_object_allocations_start a = 1.0 / 0.0 p [ObjectSpace.allocation_sourceline(a), ObjectSpace.allocation_sourcefile(a)] ``` Which outputs: [4, "test.rb"] This is incorrect because the object was allocated on line 10 and not line 4. The behaviour is correct when we use a leaf instruction (e.g. if we replaced `1.0 / 0.0` with `"hello"`), then the output is: [10, "test.rb"]. [Bug #19456]
* Use `ERROR_ARGS_AT`Nobuyoshi Nakada2023-02-211-1/+1
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* compile.c: eliminate getinstancevariable -> pop sequencesJean Boussier2023-02-201-1/+1
| | | | | | This case wasn't eliminated before because `getinstancevariable` could emit a warning, but that's no longer the case since Ruby 3.0.
* Add utility macros `DECIMAL_SIZE_OF` and `DECIMAL_SIZE_OF_BYTES`Nobuyoshi Nakada2023-02-141-1/+1
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* Remove ibf_dumper's WB_PROTECTED statusAlan Wu2023-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | It doesn't have the right write barriers in place. For example, there is rb_mark_set(dump->global_buffer.obj_table); in the mark function, but there is no corresponding write barrier when adding to the table in the `ibf_dump_object() -> ibf_table_find_or_insert() -> st_insert()` code path. To insert write barrier correctly, we need to store the T_STRUCT VALUE inside `struct ibf_dump`. Instead of doing that, let's just demote it to WB unproected for correctness. These dumper object are ephemeral so there is not a huge benefit for having them WB protected. Users of the bootsnap gem ran into crashes due to this issue: https://github.com/Shopify/bootsnap/issues/436 Fixes [Bug #19419]
* Merge gc.h and internal/gc.hMatt Valentine-House2023-02-091-1/+1
| | | | [Feature #19425]
* Rename iseq_mark_and_update to iseq_mark_and_movePeter Zhu2023-02-081-1/+1
| | | | The new name is more consistent.
* Make all of the references of iseq movablePeter Zhu2023-01-201-8/+2
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* Avoid checking interrupt when loading iseqStan Lo2023-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The interrupt check will unintentionally release the VM lock when loading an iseq. And this will cause issues with the `debug` gem's [`ObjectSpace.each_iseq` method](https://github.com/ruby/debug/blob/0fcfc28acae33ec1c08068fb7c33703cfa681fa7/ext/debug/iseq_collector.c#L61-L67), which wraps iseqs with a wrapper and exposes their internal states when they're actually not ready to be used. And when that happens, errors like this would occur and kill the `debug` gem's thread: ``` DEBUGGER: ReaderThreadError: uninitialized InstructionSequence ┃ DEBUGGER: Disconnected. ┃ ["/opt/rubies/ruby-3.2.0/lib/ruby/gems/3.2.0/gems/debug-1.7.1/lib/debug/breakpoint.rb:247:in `absolute_path'", ┃ "/opt/rubies/ruby-3.2.0/lib/ruby/gems/3.2.0/gems/debug-1.7.1/lib/debug/breakpoint.rb:247:in `block in iterate_iseq'", ┃ "/opt/rubies/ruby-3.2.0/lib/ruby/gems/3.2.0/gems/debug-1.7.1/lib/debug/breakpoint.rb:246:in `each_iseq'", ... ``` A way to reproduce the issue is to satisfy these conditions at the same time: 1. `debug` gem calling `ObjectSpace.each_iseq` (e.g. [activating a `LineBreakpoint`](https://github.com/ruby/debug/blob/0fcfc28acae33ec1c08068fb7c33703cfa681fa7/lib/debug/breakpoint.rb#L246)). 2. A large amount of iseq being loaded from another thread (possibly through the `bootsnap` gem). 3. 1 and 2 iterating through the same iseq(s) at the same time. Because this issue requires external dependencies and a rather complicated timing setup to reproduce, I wasn't able to write a test case for it. But here's some pseudo code to help reproduce it: ```rb require "debug/session" Thread.new do 100.times do ObjectSpace.each_iseq do |iseq| iseq.absolute_path end end end sleep 0.1 load_a_bunch_of_iseq possibly_through_bootsnap ``` [Bug #19348] Co-authored-by: Peter Zhu <peter@peterzhu.ca>
* Disallow mixed usage of ... and */**Shugo Maeda2022-12-151-0/+1
| | | | [Feature #19134]
* Set max_iv_count (used for object shapes) based on inline cachesJemma Issroff2022-12-061-2/+22
| | | | | | | | | | | | | | | | With this change, we're storing the iv name on an inline cache on setinstancevariable instructions. This allows us to check the inline cache to count instance variables set in initialize and give us an estimate of iv capacity for an object. For the purpose of estimating the number of instance variables required for an object, we're assuming that all initialize methods will call `super`. This change allows us to estimate the number of instance variables required without disassembling instruction sequences. Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org>
* Remove ruby2_keywords related to args forwardingyui-knk2022-11-291-1/+0
| | | | | | | This was introduced by b609bdeb5307e280137b4b2838af0fe4e4b46f1c to suppress warnings. However these warngins were deleted by beae6cbf0fd8b6619e5212552de98022d4c4d4d4. Therefore these codes are not needed anymore.
* Using UNDEF_P macroS-H-GAMELINKS2022-11-161-2/+2
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* Fix false LocalJumpError when branch coverage is enabledYusuke Endoh2022-11-081-1/+24
| | | | | | | | | | | | | | | `throw TAG_BREAK` instruction makes a jump only if the continuation of catch of TAG_BREAK exactly matches the instruction immediately following the "send" instruction that is currently being executed. Otherwise, it seems to determine break from proc-closure. Branch coverage may insert some recording instructions after "send" instruction, which broke the conditions for TAG_BREAK to work properly. This change forces to set the continuation of catch of TAG_BREAK immediately after "send" (or "invokesuper") instruction. [Bug #18991]
* push dummy frame for loading processKoichi Sasada2022-10-201-27/+37
| | | | | | | | | | | | | This patch pushes dummy frames when loading code for the profiling purpose. The following methods push a dummy frame: * `Kernel#require` * `Kernel#load` * `RubyVM::InstructionSequence.compile_file` * `RubyVM::InstructionSequence.load_from_binary` https://bugs.ruby-lang.org/issues/18559
* Revert "Revert "This commit implements the Object Shapes technique in CRuby.""Jemma Issroff2022-10-111-15/+11
| | | | This reverts commit 9a6803c90b817f70389cae10d60b50ad752da48f.
* Revert "This commit implements the Object Shapes technique in CRuby."Aaron Patterson2022-09-301-11/+15
| | | | This reverts commit 68bc9e2e97d12f80df0d113e284864e225f771c2.
* This commit implements the Object Shapes technique in CRuby.Jemma Issroff2022-09-281-15/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Object Shapes is used for accessing instance variables and representing the "frozenness" of objects. Object instances have a "shape" and the shape represents some attributes of the object (currently which instance variables are set and the "frozenness"). Shapes form a tree data structure, and when a new instance variable is set on an object, that object "transitions" to a new shape in the shape tree. Each shape has an ID that is used for caching. The shape structure is independent of class, so objects of different types can have the same shape. For example: ```ruby class Foo def initialize # Starts with shape id 0 @a = 1 # transitions to shape id 1 @b = 1 # transitions to shape id 2 end end class Bar def initialize # Starts with shape id 0 @a = 1 # transitions to shape id 1 @b = 1 # transitions to shape id 2 end end foo = Foo.new # `foo` has shape id 2 bar = Bar.new # `bar` has shape id 2 ``` Both `foo` and `bar` instances have the same shape because they both set instance variables of the same name in the same order. This technique can help to improve inline cache hits as well as generate more efficient machine code in JIT compilers. This commit also adds some methods for debugging shapes on objects. See `RubyVM::Shape` for more details. For more context on Object Shapes, see [Feature: #18776] Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org> Co-Authored-By: Eileen M. Uchitelle <eileencodes@gmail.com> Co-Authored-By: John Hawthorn <john@hawthorn.email>
* Revert this until we can figure out WB issues or remove shapes from GCAaron Patterson2022-09-261-11/+15
| | | | | | | | | | Revert "* expand tabs. [ci skip]" This reverts commit 830b5b5c351c5c6efa5ad461ae4ec5085e5f0275. Revert "This commit implements the Object Shapes technique in CRuby." This reverts commit 9ddfd2ca004d1952be79cf1b84c52c79a55978f4.
* * expand tabs. [ci skip]git2022-09-271-1/+1
| | | | | Tabs were expanded because the file did not have any tab indentation in unedited lines. Please update your editor config, and use misc/expand_tabs.rb in the pre-commit hook.
* This commit implements the Object Shapes technique in CRuby.Jemma Issroff2022-09-261-15/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Object Shapes is used for accessing instance variables and representing the "frozenness" of objects. Object instances have a "shape" and the shape represents some attributes of the object (currently which instance variables are set and the "frozenness"). Shapes form a tree data structure, and when a new instance variable is set on an object, that object "transitions" to a new shape in the shape tree. Each shape has an ID that is used for caching. The shape structure is independent of class, so objects of different types can have the same shape. For example: ```ruby class Foo def initialize # Starts with shape id 0 @a = 1 # transitions to shape id 1 @b = 1 # transitions to shape id 2 end end class Bar def initialize # Starts with shape id 0 @a = 1 # transitions to shape id 1 @b = 1 # transitions to shape id 2 end end foo = Foo.new # `foo` has shape id 2 bar = Bar.new # `bar` has shape id 2 ``` Both `foo` and `bar` instances have the same shape because they both set instance variables of the same name in the same order. This technique can help to improve inline cache hits as well as generate more efficient machine code in JIT compilers. This commit also adds some methods for debugging shapes on objects. See `RubyVM::Shape` for more details. For more context on Object Shapes, see [Feature: #18776] Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org> Co-Authored-By: Eileen M. Uchitelle <eileencodes@gmail.com> Co-Authored-By: John Hawthorn <john@hawthorn.email>
* [Bug #19021] Fix safe call w/ conditional assignJohn Hawthorn2022-09-251-11/+7
| | | | | | | | | | As of fbaac837cfba23a9d34dc7ee144d7940248222a2, when we were performing a safe call (`o&.x=`) with a conditional assign (`||= 1`) and discarding the result the stack would end up in a bad state due to a missing pop. This commit fixes that by adjusting the target label of the branchnil to be before a pop in that case (as was previously done in the non-conditional assignment case).
* Use `int first_lineno` for binary format.Samuel Williams2022-09-261-3/+3
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* Rework vm_core to use `int first_lineno` struct member.Samuel Williams2022-09-261-3/+3
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* Rework `first_lineno` to be `int`.Samuel Williams2022-09-261-3/+3
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* avoid extra dup and pop in compile_op_asgn2HParker2022-09-221-11/+24
| | | | Co-authored-by: John Hawthorn <jhawthorn@github.com>
* avoid extra dup and pop in compile_op_logHParker2022-09-221-8/+11
| | | | Co-authored-by: John Hawthorn <jhawthorn@github.com>
* Enable coverage for eval.Samuel Williams2022-09-221-3/+3
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* Add comments for some peephole optimizations [ci skip]Maple Ong2022-09-121-0/+42
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* Adjust styles [ci skip]Nobuyoshi Nakada2022-09-021-4/+5
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* Use getblockparamproxy with branchJohn Hawthorn2022-09-011-0/+6
| | | | | | | | | | | | | | | | | | | | | | | A common pattern when the block is an explicit parameter is to branch based on the block parameter instead of using `block_given?`, for example `block.call if block`. This commit checks in the peephole optimizer for that case and uses the getblockparamproxy optimization, which avoids allocating a proc for simple cases, whenever a getblockparam instruction is followed immediately by branchif or branchunless. ./miniruby --dump=insns -e 'def foo(&block); 123 if block; end' == disasm: #<ISeq:foo@-e:1 (1,0)-(1,34)> (catch: FALSE) local table (size: 1, argc: 0 [opts: 0, rest: -1, post: 0, block: 0, kw: -1@-1, kwrest: -1]) [ 1] block@0<Block> 0000 getblockparamproxy block@0, 0 ( 1)[LiCa] 0003 branchunless 8 0005 putobject 123 0007 leave [Re] 0008 putnil 0009 leave [Re]
* * expand tabs. [ci skip]git2022-09-021-5/+5
| | | | | Tabs were expanded because the file did not have any tab indentation in unedited lines. Please update your editor config, and use misc/expand_tabs.rb in the pre-commit hook.
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