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it's start irb on built ruby (not installed ruby).
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`duphash` showed up in the top-20 most frequent exit ops for @jhawthorn's benchmark that renders github.com/about
The implementation was almost exactly the same as `duparray`
Co-authored-by: John Hawthorn <john@hawthorn.email>
Co-authored-by: John Hawthorn <john@hawthorn.email>
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* process.c: Add Process._fork
This API is supposed for application monitoring libraries to hook fork
event.
[Feature #17795]
Co-authored-by: Nobuyoshi Nakada <nobu@ruby-lang.org>
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For extra options from the `make` command line.
Also add explicit `--install` option to install-nodoc.
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`RubyVM.keep_script_lines` enables to keep script lines
for each ISeq and AST. This feature is for debugger/REPL
support.
```ruby
RubyVM.keep_script_lines = true
RubyVM::keep_script_lines = true
eval("def foo = nil\ndef bar = nil")
pp RubyVM::InstructionSequence.of(method(:foo)).script_lines
```
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The new backend isn't used at the moment and adds to our diff against
upstream so remove it for now. We can reverse the removal later with git
history.
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For upstreaming, we want functions we export either prefixed with "rb_"
or made static. Historically we haven't been following this rule, so we
were "leaking" a lot of symbols as `make leak-globals` would tell us.
This change unifies everything YJIT into a single compilation unit,
yjit.o, and makes everything unprefixed static to pass `make leak-globals`.
This manual "unified build" setup is similar to that of vm.o.
Having everything in one compilation unit allows static functions to
be visible across YJIT files and removes the need for declarations in
headers in some cases. Unnecessary declarations were removed.
Other changes of note:
- switched to MJIT_SYMBOL_EXPORT_BEGIN which indicates stuff as being
off limits for native extensions
- the first include of each YJIT file is change to be "internal.h"
- undefined MAP_STACK before explicitly redefining it since it
collide's with a definition in system headers. Consider renaming?
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This change fixes some cases where YJIT fails to fire tracing events.
Most of the situations YJIT did not handle correctly involves enabling
tracing while running inside generated code.
A new operation to invalidate all generated code is added, which uses
patching to make generated code exit at the next VM instruction
boundary. A new routine called `jit_prepare_routine_call()` is
introduced to facilitate this and should be used when generating code
that could allocate, or could otherwise use `RB_VM_LOCK_ENTER()`.
The `c_return` event is fired in the middle of an instruction as opposed
to at an instruction boundary, so it requires special handling. C method
call return points are patched to go to a fucntion which does everything
the interpreter does, including firing the `c_return` event. The
generated code for C method calls normally does not fire the event.
Invalided code should not change after patching so the exits are not
clobbered. A new variable is introduced to track the region of code that
should not change.
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The FIXME is there so we remember to investigate why insns clears the
temporary array. Is this necessary? If it's not we can remove it from
both.
Co-authored-by: Aaron Patterson <tenderlove@ruby-lang.org>
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Adds getglobal to yjit and a test for it.
Co-authored-by: Aaron Patterson <tenderlove@ruby-lang.org>
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Now that we're using the jit function entry point, we don't need the
scraper. Thank you for your service, scraper. ❤️
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* Add ETYPE_TRUE and ETYPE_FALSE
* Implement checktype
* Implement concatstrings
* Update deps
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Lazily compile out a chain of checks for different known classes and
whether `self` embeds its ivars or not.
* Remove trailing whitespaces
* Get proper addresss in Capstone disassembly
* Lowercase address in Capstone disassembly
Capstone uses lowercase for jump targets in generated listings. Let's
match it.
* Use the same successor in getivar guard chains
Cuts down on duplication
* Address reviews
* Fix copypasta error
* Add a comment
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Renaming uJIT to YJIT. AKA s/ujit/yjit/g.
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* ujit: implement opt_getinlinecache
Aggressively bet that writes to constants don't happen and invalidate
all opt_getinlinecache blocks on any and all constant writes.
Use alignment padding on block_t to track this assumption. No change to
sizeof(block_t).
* Fix compile warnings when not RUBY_DEBUG
* Fix reversed condition
* Switch to st_table to keep track of assumptions
Co-authored-by: Aaron Patterson <aaron.patterson@gmail.com>
Co-authored-by: Maxime Chevalier-Boisvert <maximechevalierb@gmail.com>
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* uJIT: don't compile tailcalls
* Don't compile calls to protected methods
We need to generate extra code to check whether the call goes through if
we want to support these.
* Fix copy pasta
* Update blockids in branches
* Update dependencies
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* Tie lifetime of uJIT blocks to iseqs
Blocks weren't being freed when iseqs are collected.
* Add rb_dary. Use it for method dependency table
* Keep track of blocks per iseq
Remove global version_tbl
* Block version bookkeeping fix
* dary -> darray
* free ujit_blocks
* comment about size of ujit_blocks
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This lets us use libcapstone directly from miniruby so we don't need a
Ruby Gem to to dev work.
Example usage:
```ruby
def foo(x)
if x < 1
"wow"
else
"neat"
end
end
iseq = RubyVM::InstructionSequence.of(method(:foo))
puts UJIT.disasm(iseq)
100.times { foo 1 }
puts UJIT.disasm(iseq)
```
Then in the terminal
```
$ ./miniruby test.rb
== disasm: #<ISeq:foo@test.rb:1 (1,0)-(7,3)> (catch: FALSE)
local table (size: 1, argc: 1 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 1] x@0<Arg>
0000 getlocal_WC_0 x@0 ( 2)[LiCa]
0002 putobject_INT2FIX_1_
0003 opt_lt <calldata!mid:<, argc:1, ARGS_SIMPLE>
0005 branchunless 10
0007 putstring "wow" ( 3)[Li]
0009 leave ( 7)[Re]
0010 putstring "neat" ( 5)[Li]
0012 leave ( 7)[Re]
== ISEQ RANGE: 10 -> 10 ========================================================
0x0: movabs rax, 0x7fe816e2d1a0
0xa: mov qword ptr [rdi], rax
0xd: mov r8, rax
0x10: mov r9, rax
0x13: mov r11, r12
0x16: jmp qword ptr [rax]
== ISEQ RANGE: 0 -> 7 ==========================================================
0x0: mov rax, qword ptr [rdi + 0x20]
0x4: mov rax, qword ptr [rax - 0x18]
0x8: mov qword ptr [rdx], rax
0xb: mov qword ptr [rdx + 8], 3
0x13: movabs rax, 0x7fe817808200
0x1d: test byte ptr [rax + 0x3e6], 1
0x24: jne 0x3ffff7b
0x2a: test byte ptr [rdx], 1
0x2d: je 0x3ffff7b
0x33: test byte ptr [rdx + 8], 1
0x37: je 0x3ffff7b
0x3d: mov rax, qword ptr [rdx]
0x40: cmp rax, qword ptr [rdx + 8]
0x44: movabs rax, 0
0x4e: movabs rcx, 0x14
0x58: cmovl rax, rcx
0x5c: mov qword ptr [rdx], rax
0x5f: test qword ptr [rdx], -9
0x66: jne 0x3ffffd5
```
Make sure to `brew install pkg-config capstone`
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Once this works on GNU/Linux this could be done semi automatically.
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Fixes [Feature #18148]
When set, all the loaded objects are returned as frozen.
If a proc is provided, it is called with the objects already frozen.
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For the `test-bundled-gems`, make `debug.so` with extconf.rb and
`make` command directly because `rake-compiler` assume ruby is
installed (but `test-bundled-gems` can run without installation).
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