Add Intern opcode
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git
2025-04-18 13:49:50 +00:00
@ -18,6 +18,7 @@ enum Insn {
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// SSA block parameter. Also used for function parameters in the function's entry block.
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Param { idx: usize },
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StringCopy { val: Opnd },
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StringIntern { val: Opnd },
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// Control flow instructions
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Return { val: Opnd },
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@ -68,6 +69,7 @@ enum RubyOpcode {
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Putnil,
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Putobject(VALUE),
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Putstring(VALUE),
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Intern,
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Setlocal(usize),
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Getlocal(usize),
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Leave,
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@ -119,8 +121,13 @@ fn to_ssa(opcodes: &Vec<RubyOpcode>) -> Function {
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RubyOpcode::Putnil => { state.push(Opnd::Const(Qnil)); },
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RubyOpcode::Putobject(val) => { state.push(Opnd::Const(*val)); },
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RubyOpcode::Putstring(val) => {
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let insn_id = Opnd::Insn(result.push_insn(block, Insn::StringCopy { val: Opnd::Const(*val) }));
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state.push(insn_id);
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let insn_id = result.push_insn(block, Insn::StringCopy { val: Opnd::Const(*val) });
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state.push(Opnd::Insn(insn_id));
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}
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RubyOpcode::Intern => {
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let val = state.pop();
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let insn_id = result.push_insn(block, Insn::StringIntern { val });
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state.push(Opnd::Insn(insn_id));
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}
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RubyOpcode::Setlocal(idx) => {
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let val = state.pop();
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@ -159,4 +166,25 @@ mod tests {
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],
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});
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}
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#[test]
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fn test_intern() {
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let opcodes = vec![
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RubyOpcode::Putstring(Qnil),
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RubyOpcode::Intern,
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RubyOpcode::Leave,
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];
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let function = to_ssa(&opcodes);
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assert_eq!(function, Function {
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entry_block: BlockId(0),
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insns: vec![
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Insn::StringCopy { val: Opnd::Const(Qnil) },
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Insn::StringIntern { val: Opnd::Insn(InsnId(0)) },
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Insn::Return { val: Opnd::Insn(InsnId(1)) }
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],
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blocks: vec![
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Block { params: vec![], insns: vec![InsnId(0), InsnId(1), InsnId(2)] }
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],
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});
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}
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}
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