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Bug #20477
closedRJIT NoMatchingPatternError when initialize Hash literal with more 8 items
Description
When I create Hash with 8 or more items, I got the error:
ruby --rjit -e "a = 1; 1.upto(10) { b={a1: a&1, a2: a&1, a3: a&1, a4: a&1, a5: a&1, a6: a&1, a7: a&1, a8: a&1} }"
/home/ukolovda/.rvm/rubies/ruby-3.3.1/lib/ruby/3.3.0/ruby_vm/rjit/assembler.rb:124:in `and': [:rax, [:rbx, 128]] (NoMatchingPatternError)
from /home/ukolovda/.rvm/rubies/ruby-3.3.1/lib/ruby/3.3.0/ruby_vm/rjit/insn_compiler.rb:2348:in `opt_and'
from /home/ukolovda/.rvm/rubies/ruby-3.3.1/lib/ruby/3.3.0/ruby_vm/rjit/insn_compiler.rb:118:in `compile'
from /home/ukolovda/.rvm/rubies/ruby-3.3.1/lib/ruby/3.3.0/ruby_vm/rjit/compiler.rb:321:in `compile_block'
from /home/ukolovda/.rvm/rubies/ruby-3.3.1/lib/ruby/3.3.0/ruby_vm/rjit/compiler.rb:150:in `block in branch_stub_hit'
from <internal:kernel>:133:in `then'
from /home/ukolovda/.rvm/rubies/ruby-3.3.1/lib/ruby/3.3.0/ruby_vm/rjit/compiler.rb:149:in `branch_stub_hit'
from -e:1:in `block in <main>'
from -e:1:in `upto'
from -e:1:in `<main>'
Test ruby file:
# test.rb
# Running: ruby --rjit test.rb
a = 1
1.upto(10) do
b = { a1: a&1,
a2: a&1,
a3: a&1,
a4: a&1,
a5: a&1,
a6: a&1,
a7: a&1,
a8: a&1,
}
end
(I described it first in #20475, but it is closed now. Current description is more clear and easy reproduce).
Updated by k0kubun (Takashi Kokubun) 6 months ago
- Copied from Bug #20475: RJIT `and' NoMatchingPatternError added
Updated by k0kubun (Takashi Kokubun) 6 months ago
- Status changed from Open to Feedback
- Assignee set to k0kubun (Takashi Kokubun)
Updated by k0kubun (Takashi Kokubun) 6 months ago
Thanks for the easy reproduction steps. As a reminder from the previous ticket,
Given its experimental nature, it's somewhat intended that RJIT's assembler doesn't cover some patterns. It's for developers to try some stuff, so feel free to open a pull request to add support for that instruction encoding, or just switch to --yjit if you just want to use a JIT.
Updated by ukolovda (Dmitry Ukolov) 6 months ago
Thank you!
I guessed, RJIT will be production solution in some future, sorry.
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