[ruby-core:117804] [Ruby master Bug#20477] RJIT NoMatchingPatternError when initialize Hash literal with more 8 items
From:
"ukolovda (Dmitry Ukolov) via ruby-core" <ruby-core@...>
Date:
2024-05-08 07:26:04 UTC
List:
ruby-core #117804
Issue #20477 has been reported by ukolovda (Dmitry Ukolov).
----------------------------------------
Bug #20477: RJIT NoMatchingPatternError when initialize Hash literal with more 8 items
https://bugs.ruby-lang.org/issues/20477
* Author: ukolovda (Dmitry Ukolov)
* Status: Open
* ruby -v: ruby 3.3.1 (2024-04-23 revision c56cd86388) [x86_64-linux]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
When I create Hash with 8 or more items:
```bash
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:
```ruby
# 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).
--
https://bugs.ruby-lang.org/
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