prometeu-runtime/docs/specs/pbs/files/PRs para Junie Global.md

PBS ⇄ VM Alignment — Junie PRs (HIP Semantics Hardening)

Purpose: fix semantic mismatches between the PBS frontend (Core IR) and the VM before any VM heap/gate implementation.

These PRs are surgical, mandatory, and non-creative. Junie must follow them exactly.

Context:

• PBS frontend is implemented and produces Core IR.
• Bytecode stability is a hard requirement.
• VM currently has stack + const pool; heap exists but is unused.
• HIP semantics (gates/storage) are currently incorrectly lowered.
• ir_vm is feature-frozen at the moment. we are going to validate only ir_core
• Lowering is the only place ir_core and ir_vm touch each other. > - VM IR is never imported from Core IR.
  • Core IR never imports VM IR.

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Global Rules (Read Before Any PR)

1. No new features. Only semantic correction.
2. No new VM opcodes yet. VM changes come later.
3. No fallback values (e.g. FunctionId(0)). Fail with diagnostics.
4. Every PR must include tests (golden or unit).
5. Core IR is the source of semantic truth.