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Add Intern opcode

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This commit is contained in:
Max Bernstein 2025-02-06 11:29:23 -05:00 committed by Takashi Kokubun
parent 139102b24a
commit 26d1aa4029
Notes: git 2025-04-18 13:49:50 +00:00 
Merged: https://github.com/ruby/ruby/pull/13131
1 changed files with 30 additions and 2 deletions
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32
zjit/src/ir.rs
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@ -18,6 +18,7 @@ enum Insn {
// SSA block parameter. Also used for function parameters in the function's entry block.
Param { idx: usize },
StringCopy { val: Opnd },
StringIntern { val: Opnd },
// Control flow instructions
Return { val: Opnd },
@ -68,6 +69,7 @@ enum RubyOpcode {
Putnil,
Putobject(VALUE),
Putstring(VALUE),
Intern,
Setlocal(usize),
Getlocal(usize),
Leave,
@ -119,8 +121,13 @@ fn to_ssa(opcodes: &Vec<RubyOpcode>) -> Function {
RubyOpcode::Putnil => { state.push(Opnd::Const(Qnil)); },
RubyOpcode::Putobject(val) => { state.push(Opnd::Const(*val)); },
RubyOpcode::Putstring(val) => {
let insn_id = Opnd::Insn(result.push_insn(block, Insn::StringCopy { val: Opnd::Const(*val) }));
state.push(insn_id);
let insn_id = result.push_insn(block, Insn::StringCopy { val: Opnd::Const(*val) });
state.push(Opnd::Insn(insn_id));
}
RubyOpcode::Intern => {
let val = state.pop();
let insn_id = result.push_insn(block, Insn::StringIntern { val });
state.push(Opnd::Insn(insn_id));
}
RubyOpcode::Setlocal(idx) => {
let val = state.pop();
@ -159,4 +166,25 @@ mod tests {
],
});
}
#[test]
fn test_intern() {
let opcodes = vec![
RubyOpcode::Putstring(Qnil),
RubyOpcode::Intern,
RubyOpcode::Leave,
];
let function = to_ssa(&opcodes);
assert_eq!(function, Function {
entry_block: BlockId(0),
insns: vec![
Insn::StringCopy { val: Opnd::Const(Qnil) },
Insn::StringIntern { val: Opnd::Insn(InsnId(0)) },
Insn::Return { val: Opnd::Insn(InsnId(1)) }
],
blocks: vec![
Block { params: vec![], insns: vec![InsnId(0), InsnId(1), InsnId(2)] }
],
});
}
}