summaryrefslogtreecommitdiff
path: root/tool/mjit
AgeCommit message (Collapse)Author
2022-12-24MJIT: Cancel all on disastrous situations (#7019)Takashi Kokubun
I noticed this while running test_yjit with --mjit-call-threshold=1, which redefines `Integer#<`. When Ruby is monkey-patched, MJIT itself could be broken. Similarly, Ruby scripts could break MJIT in many different ways. I prepared the same set of hooks as YJIT so that we could possibly override it and disable it on those moments. Every constant under RubyVM::MJIT is private and thus it's an unsupported behavior though. Notes: Merged-By: k0kubun <takashikkbn@gmail.com>
2022-12-07Stop transitioning to UNDEF when undefining an instance variableAaron Patterson
Cases like this: ```ruby obj = Object.new loop do obj.instance_variable_set(:@foo, 1) obj.remove_instance_variable(:@foo) end ``` can cause us to use many more shapes than we want (and even run out). This commit changes the code such that when an instance variable is removed, we'll walk up the shape tree, find the shape, then rebuild any child nodes that happened to be below the "targetted for removal" IV. This also requires moving any instance variables so that indexes derived from the shape tree will work correctly. Co-Authored-By: Jemma Issroff <jemmaissroff@gmail.com> Co-authored-by: John Hawthorn <jhawthorn@github.com> Notes: Merged: https://github.com/ruby/ruby/pull/6866
2022-12-01MJIT: Use install = true for bundler/inlineTakashi Kokubun
It prints a `bundle install`-like output, which seems more useful than a silent output.
2022-11-28MJIT: Rename mjit_compiler.h to mjit_c.hTakashi Kokubun
because it exists primarily for generating mjit_c.rb.
2022-11-27MJIT: Clear .cache/clangd on bindgen if existsTakashi Kokubun
2022-11-18rename SHAPE_BITS to SHAPE_ID_NUM_BITSAaron Patterson
Notes: Merged: https://github.com/ruby/ruby/pull/6737
2022-11-15Let mjit-bindgen use BASERUBY and bundle/inline (#6740)Takashi Kokubun
Notes: Merged-By: k0kubun <takashikkbn@gmail.com>
2022-11-15MJIT: Fix vm_cc_cme(cc).def.type to use bit fieldTakashi Kokubun
access properly. Because the libclang node had two children, it wasn't handled well by the pattern matching for the bit field case. In addition to that, this bit field has a non-1 width. Because we're returning true/false for a width-1 bit field, I added another behavior that works like a char value for bit fields with width 2-8.
2022-11-14Remove USE_RVARGC codeAaron Patterson
We don't need this constant to be exposed anymore, so remove it Notes: Merged: https://github.com/ruby/ruby/pull/6728
2022-11-14Import shape constants with mjit-bindgenTakashi Kokubun
2022-11-14Import class constants with mjit-bindgenTakashi Kokubun
2022-10-24Remove iv_index_tbl_entryJohn Hawthorn
Notes: Merged: https://github.com/ruby/ruby/pull/6610
2022-10-13Only expose Ruby Shape API if VM_CHECK_MODE is enabledAaron Patterson
2022-10-11Revert "Revert "This commit implements the Object Shapes technique in CRuby.""Jemma Issroff
This reverts commit 9a6803c90b817f70389cae10d60b50ad752da48f.
2022-09-30Revert "This commit implements the Object Shapes technique in CRuby."Aaron Patterson
This reverts commit 68bc9e2e97d12f80df0d113e284864e225f771c2.
2022-09-28This commit implements the Object Shapes technique in CRuby.Jemma Issroff
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>
2022-09-26Revert this until we can figure out WB issues or remove shapes from GCAaron Patterson
Revert "* expand tabs. [ci skip]" This reverts commit 830b5b5c351c5c6efa5ad461ae4ec5085e5f0275. Revert "This commit implements the Object Shapes technique in CRuby." This reverts commit 9ddfd2ca004d1952be79cf1b84c52c79a55978f4.
2022-09-26This commit implements the Object Shapes technique in CRuby.Jemma Issroff
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> Notes: Merged: https://github.com/ruby/ruby/pull/6386
2022-09-24Allow changing conversion macro in MJIT bindgenTakashi Kokubun
This is necessary for object shapes.
2022-09-23Skip struct fields whose output differsTakashi Kokubun
across different environments Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Swap the positions of offsetof and typeTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Bindgen offsetof struct and union with builtinTakashi Kokubun
except for bit fields. I made a risky assumption on leading bit fields and just gave up non-leading bit fields for now. I'll change it to let C code access bit fields later. Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Bindgen sizeof struct and union with builtinTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Bindgen immediate types with builtinTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Drop c_64 and c_32Takashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Bindgen enum with builtinTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Builtin needs to be baseruby-compatibleTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Automatically setup bundler of bindgen.rbTakashi Kokubun
to easily use it with `tool/mjit/bindgen.rb BUILDDIR` instead of using `make mjit-bindgen`. Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23mjit_c.rb doesn't need to be an erbTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Mix manual and auto-generated C APIsTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Bindgen macro with builtinTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Auto-generate mjit_c.rb.erbTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-23Builtin RubyVM::MJIT::CTakashi Kokubun
Notes: Merged: https://github.com/ruby/ruby/pull/6418
2022-09-21add rb_execution_contextAaron Patterson
Notes: Merged: https://github.com/ruby/ruby/pull/6417
2022-09-21add rb_control_frame_tAaron Patterson
Notes: Merged: https://github.com/ruby/ruby/pull/6417
2022-09-09More robust macro parser (#6343)Aaron Patterson
I want to use more complicated macros with MJIT. For example: ``` # define SHAPE_MASK (((unsigned int)1 << SHAPE_BITS) - 1) ``` This commit adds a simple recursive descent parser that produces an AST and a small visitor that converts the AST to Ruby. Notes: Merged-By: k0kubun <takashikkbn@gmail.com>
2022-09-05Add mjit-bindgen workflow (#6327)Takashi Kokubun
Notes: Merged-By: k0kubun <takashikkbn@gmail.com>
2022-09-04Ruby MJIT (#6028)Takashi Kokubun
Notes: Merged-By: k0kubun <takashikkbn@gmail.com>
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-26 22:45:54 +0000