[pull] master from ruby:master#830
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pull[bot] merged 3 commits intoturkdevops:masterfrom Mar 6, 2026
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ZJIT: Constant fold modulus (%) operations (#16168) Similar to the way ZJIT already folds +, -, and * operations. One complication is that the / operator behaves differently in Ruby than in Rust for negative values. For example in Ruby: ``` ruby -e "puts 7 / -3" # => -3 ``` vs Rust: ``` println!("{}", 7 / -3); // => -2 ``` My solution is to pass this through to cruby rb_fix_div_fix to do the calculation for us.
## Runtime Counters on lobsters (before/after Jacob's load-store opt) | Stat | Before | After | Delta | |------|--------|-------|-------| | load_field_count | 110,410,542 | 106,547,275 | -3,863,267 (-3.5%) | | store_field_count | 9,196,747 | 9,196,759 | ~unchanged | | guard_shape_count | 31,973,410 | 29,743,901 | -2,229,509 (-7.0%) |
Introduce PM_TOKEN_KEYWORD_DO_BLOCK to distinguish do-blocks on command-style calls from regular `do` keywords. Add parse_command_do_block to attach these blocks to call nodes. Track in_endless_def_body to prevent do-block consumption inside endless method definitions, allowing blocks to correctly bubble up to outer contexts like `private def f = puts "Hello" do end`. ruby/prism@7d17fd254b
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