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Phase 25.1b: VM undefined-value diagnostics and builder SSA helpers

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nyash-codex
2025-11-17 03:19:03 +09:00
parent 4b078e6df9
commit 82b6c4e834
12 changed files with 231 additions and 41 deletions
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6
src/mir/basic_block.rs
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@ -215,6 +215,12 @@ impl BasicBlock {
/// Insert instruction at the beginning (after phi instructions)
pub fn insert_instruction_after_phis(&mut self, instruction: MirInstruction) {
let phi_count = self.phi_instructions().count();
if std::env::var("NYASH_SCHEDULE_TRACE").ok().as_deref() == Some("1") {
if let MirInstruction::Copy { dst, src } = &instruction {
eprintln!("[insert-after-phis] bb={:?} phi_count={} inserting Copy dst=%{} src=%{} total_inst={}",
self.id, phi_count, dst.0, src.0, self.instructions.len());
}
}
self.effects = self.effects | instruction.effects();
self.instructions.insert(phi_count, instruction);
}