🔧 Hotfix 7 (Enhanced): ValueId receiver alias tracking for nested loops
- Problem: Pinned receiver variables in loops cause undefined ValueId errors - Enhanced fix: Update all receiver aliases (me + all __pin$N$@recv levels) - Handles nested loops by updating previous pin levels - Test status: Partial improvement, ValueId(50) → ValueId(40) - Further investigation needed for complete fix Files modified: - src/mir/phi_core/loopform_builder.rs (emit_header_phis)
This commit is contained in:
nyash-codex
@ -1,33 +1,45 @@
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// Exit PHI - Break Finder Box
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// Purpose: Detect break statements in loops (jumps to exit blocks)
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// Input: JSON v0 Program string
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// Output: Array of break info {block_id, exit_id, loop_header}
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// Exit PHI - BreakFinderBox
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// Purpose:
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// - Stage‑1 Program(JSON v0) から「ループと break の位置」を検出する解析専用の箱だよ。
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// - JSON 文字列は書き換えず、loop / break 情報を構造化して LoopSSA/PhiInjector に渡す。
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// Input:
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// - json_str: Program(JSON v0) 文字列（単一関数 or Program 全体）
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// - trace_flag: 0 = silent, 1 = dev trace ON（LoopSSA から渡される）
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// Output:
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// - Array of break info MapBox:
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// { "block_id": <String>, "exit_id": <String>, "loop_header": <String> }
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// - 付随して ControlFormBox に loop 形を写し、trace ON 時にログとして出力する
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static box BreakFinderBox {
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// Main entry: find all breaks in all loops
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find_breaks(json_str) {
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local trace = env.get("HAKO_COMPILER_BUILDER_TRACE")
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if trace != null && ("" + trace) == "1" {
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print("[break-finder] start")
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}
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using selfhost.shared.mir.control_form as ControlFormBox
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local breaks = new ArrayBox()
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static box BreakFinderBox {
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// Main entry: find all breaks in all loops
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// trace_flag: 0 = silent, 1 = dev trace ON（LoopSSA から伝播）
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find_breaks(json_str, trace_flag) {
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local trace = trace_flag
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if trace == 1 {
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print("[break-finder] start")
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}
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local breaks = new ArrayBox()
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// 1) Find all loops (header blocks with back-edges)
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local loops = me._find_loops(json_str, trace)
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if trace == 1 {
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print("[break-finder] found " + loops.length() + " loops")
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}
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// 1) Find all loops (header blocks with back-edges)
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local loops = me._find_loops(json_str)
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if trace != null && ("" + trace) == "1" {
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print("[break-finder] found " + loops.length() + " loops")
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}
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// 2) For each loop, find breaks (jumps to exit)
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local i = 0
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local n = loops.length()
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loop(i < n) {
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local loop_info = loops.get(i)
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local header_id = "" + loop_info.get("header")
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local exit_id = "" + loop_info.get("exit")
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local body_blocks = loop_info.get("body")
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// 2) For each loop, find breaks (jumps to exit)
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local i = 0
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local n = loops.length()
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loop(i < n) {
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local loop_info = loops.get(i)
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local header_id = "" + loop_info.get("header")
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local exit_id = "" + loop_info.get("exit")
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local body_blocks = loop_info.get("body")
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// ControlFormBox を break_info にも添付しておく（v2 で PhiInjector 側から参照するため）
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local loop_cf = loop_info.get("control")
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// Find breaks in body blocks
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local j = 0
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@ -35,38 +47,40 @@ static box BreakFinderBox {
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loop(j < m) {
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local block_id = "" + body_blocks.get(j)
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// Check if this block jumps to exit
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if me._jumps_to(json_str, block_id, exit_id) == 1 {
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local break_info = new MapBox()
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break_info.set("block_id", block_id)
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break_info.set("exit_id", exit_id)
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break_info.set("loop_header", header_id)
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breaks.push(break_info)
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if trace != null && ("" + trace) == "1" {
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print("[break-finder] found break: block " + block_id + " -> exit " + exit_id)
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}
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}
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// Check if this block jumps to exit
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if me._jumps_to(json_str, block_id, exit_id) == 1 {
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local break_info = new MapBox()
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break_info.set("block_id", block_id)
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break_info.set("exit_id", exit_id)
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break_info.set("loop_header", header_id)
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// ここで ControlFormBox（loop_cf）も載せておく
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break_info.set("loop_control", loop_cf)
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breaks.push(break_info)
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if trace == 1 {
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print("[break-finder] found break: block " + block_id + " -> exit " + exit_id)
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}
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}
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j = j + 1
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}
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i = i + 1
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}
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if trace != null && ("" + trace) == "1" {
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print("[break-finder] total breaks: " + breaks.length())
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}
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return breaks
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}
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// Find all loops in JSON (simple version: look for header/exit pattern)
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_find_loops(json_str) {
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i = i + 1
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}
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if trace == 1 {
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print("[break-finder] total breaks: " + breaks.length())
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}
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return breaks
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}
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// Find all loops in JSON (simple version: look for header/exit pattern)
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_find_loops(json_str, trace) {
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local loops = new ArrayBox()
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local s = "" + json_str
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// Simple pattern: find "loop_header":NNN, "loop_exit":MMM
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// Simple pattern: find "loop_header":NNN, "loop_exit":MMM
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// This is a simplified version - just finds explicit loop markers
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local i = 0
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local n = s.length()
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@ -93,11 +107,23 @@ static box BreakFinderBox {
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// Find body blocks (blocks between header and exit)
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local body_blocks = me._find_loop_body(json_str, header_id, exit_id)
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local loop_info = new MapBox()
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loop_info.set("header", header_id)
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loop_info.set("exit", exit_id)
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loop_info.set("body", body_blocks)
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loops.push(loop_info)
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// ControlFormBox 経由で loop 形を構造化しておく（MVP: 観測専用）
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local cf = new ControlFormBox()
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cf.from_loop(header_id, exit_id, body_blocks)
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local loop_info = new MapBox()
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loop_info.set("header", header_id)
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loop_info.set("exit", exit_id)
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loop_info.set("body", body_blocks)
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// 将来の v2 実装で利用できるよう、ControlForm も添えておく
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loop_info.set("control", cf)
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loops.push(loop_info)
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// trace=1 のときだけ JSON 風にログ出力するよ
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if trace == 1 {
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local msg = "[loopssa/control] {\"kind\":\"loop\",\"header\":" + header_id + ",\"exit\":" + exit_id + ",\"body_size\":" + body_blocks.length() + "}"
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print(msg)
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}
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i = exit_pos + 12
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}
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@ -1,55 +1,77 @@
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// Exit PHI - PHI Injector Box
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// Purpose: Inject PHI nodes at loop exit blocks
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// Input: JSON v0 Program string + break info array
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// Output: Modified JSON with PHI nodes injected
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// Exit PHI - PhiInjectorBox
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// Purpose:
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// - BreakFinderBox が検出した break 情報をもとに、loop exit block へ PHI 相当命令を注入する箱だよ。
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// - 現状は文字列ベースの簡易実装（synthetic value_id など）だが、将来的には ControlFormBox/LoopScope ベースに差し替える予定。
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// Input:
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// - json_str: Program(JSON v0) 文字列
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// - breaks: Array of MapBox（BreakFinderBox 由来: {block_id, exit_id, loop_header}）
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// - trace_flag: 0 = silent, 1 = dev trace ON（LoopSSA から渡される）
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// Output:
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// - Modified Program(JSON v0) 文字列（exit block の instructions 先頭に PHI 相当 JSON を挿入）
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static box PhiInjectorBox {
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// Main entry: inject PHI nodes for all breaks
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inject_exit_phis(json_str, breaks) {
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local trace = env.get("HAKO_COMPILER_BUILDER_TRACE")
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if trace != null && ("" + trace) == "1" {
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print("[phi-injector] start, breaks: " + breaks.length())
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}
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static box PhiInjectorBox {
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// Main entry: inject PHI nodes for all breaks
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// trace_flag: 0 = silent, 1 = dev trace ON（LoopSSA から伝播）
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inject_exit_phis(json_str, breaks, trace_flag) {
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local trace = trace_flag
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if trace == 1 {
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print("[phi-injector] start, breaks: " + breaks.length())
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}
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if breaks.length() == 0 {
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if trace == 1 {
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print("[phi-injector] no breaks, skipping")
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}
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return json_str
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}
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local result = json_str
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// Group breaks by exit_id
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local exit_groups = me._group_by_exit(breaks)
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if trace == 1 {
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print("[phi-injector] processing " + exit_groups.length() + " exit blocks")
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}
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if breaks.length() == 0 {
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if trace != null && ("" + trace) == "1" {
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print("[phi-injector] no breaks, skipping")
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}
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return json_str
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}
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// For each exit block, inject PHI nodes
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local i = 0
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local n = exit_groups.length()
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loop(i < n) {
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local group = exit_groups.get(i)
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local exit_id = "" + group.get("exit_id")
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local break_list = group.get("breaks")
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// Optional: LoopControl を取り出して v2 実装の観測に使えるようにする
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local loop_cf = group.get("loop_control")
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if trace == 1 {
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print("[phi-injector] exit " + exit_id + " has " + break_list.length() + " breaks")
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// 将来の v2 実装に備えて、ControlForm 情報も軽く観測しておく（現在はログのみ）
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if loop_cf != null {
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print("[phi-injector/v2] loop_control present for exit " + exit_id)
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}
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}
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local result = json_str
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// Collect variable snapshots from all breaks
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local phi_vars = me._collect_phi_vars(result, break_list)
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// v2 用の入口（観測専用・現在は未使用）
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// 将来的には loop_cf / Carrier/Pinned に基づいて phi_vars を構築し直す。
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if trace == 1 && loop_cf != null {
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// Stub: v2 経路が有効化されたときにここから差し替える想定だよ。
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// local phi_vars_v2 = me._collect_phi_vars_v2(result, break_list, loop_cf)
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// （現時点ではログのみで、実際の PHI 生成には使わない）
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print("[phi-injector/v2] (stub) would collect phi vars via ControlFormBox for exit " + exit_id)
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}
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// Group breaks by exit_id
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local exit_groups = me._group_by_exit(breaks)
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if trace != null && ("" + trace) == "1" {
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print("[phi-injector] processing " + exit_groups.length() + " exit blocks")
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}
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// For each exit block, inject PHI nodes
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local i = 0
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local n = exit_groups.length()
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loop(i < n) {
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local group = exit_groups.get(i)
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local exit_id = "" + group.get("exit_id")
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local break_list = group.get("breaks")
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if trace != null && ("" + trace) == "1" {
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print("[phi-injector] exit " + exit_id + " has " + break_list.length() + " breaks")
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}
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// Collect variable snapshots from all breaks
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local phi_vars = me._collect_phi_vars(result, break_list)
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if phi_vars.length() > 0 {
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// Inject PHI instructions
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result = me._inject_phis_at_block(result, exit_id, phi_vars)
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if trace != null && ("" + trace) == "1" {
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print("[phi-injector] injected " + phi_vars.length() + " PHI nodes at exit " + exit_id)
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}
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}
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if phi_vars.length() > 0 {
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// Inject PHI instructions
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result = me._inject_phis_at_block(result, exit_id, phi_vars)
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if trace == 1 {
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print("[phi-injector] injected " + phi_vars.length() + " PHI nodes at exit " + exit_id)
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}
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}
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i = i + 1
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}
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@ -57,28 +79,31 @@ static box PhiInjectorBox {
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return result
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}
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// Group breaks by exit_id
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_group_by_exit(breaks) {
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local groups = new ArrayBox()
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local exit_ids = new ArrayBox()
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// Group breaks by exit_id
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_group_by_exit(breaks) {
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local groups = new ArrayBox()
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local exit_ids = new ArrayBox()
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local i = 0
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local n = breaks.length()
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loop(i < n) {
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local break_info = breaks.get(i)
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local exit_id = "" + break_info.get("exit_id")
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local break_info = breaks.get(i)
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local exit_id = "" + break_info.get("exit_id")
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// Find or create group
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local group_idx = me._find_exit_group(exit_ids, exit_id)
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if group_idx < 0 {
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// New group
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local new_group = new MapBox()
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new_group.set("exit_id", exit_id)
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local break_list = new ArrayBox()
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break_list.push(break_info)
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new_group.set("breaks", break_list)
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groups.push(new_group)
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exit_ids.push(exit_id)
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if group_idx < 0 {
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// New group
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local new_group = new MapBox()
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new_group.set("exit_id", exit_id)
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local break_list = new ArrayBox()
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break_list.push(break_info)
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new_group.set("breaks", break_list)
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// v2 用に loop_control もグループに添付しておく（同じ exit_id なら同じループとみなす）
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local lc = break_info.get("loop_control")
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if lc != null { new_group.set("loop_control", lc) }
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groups.push(new_group)
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exit_ids.push(exit_id)
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} else {
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// Add to existing group
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local existing_group = groups.get(group_idx)
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@ -103,13 +128,23 @@ static box PhiInjectorBox {
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return -1
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}
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// Collect variables that need PHI nodes
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_collect_phi_vars(json_str, break_list) {
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local vars = new ArrayBox()
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local var_names = new ArrayBox()
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// For MVP, assume common variables: i, n, item, etc.
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// In full implementation, would trace actual variable definitions
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// Collect variables that need PHI nodes
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_collect_phi_vars(json_str, break_list) {
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local vars = new ArrayBox()
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local var_names = new ArrayBox()
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// NOTE (v1/MVP):
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// 現在は「よくある変数名」を固定リストで見る簡易版だよ。
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// - 長所: 実装が単純で、Stage‑B 最小ケースの観測には十分。
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// - 短所: 真の Carrier/Pinned を見ていないので、網羅性はない（将来撤退予定）。
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//
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// v2 では:
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// - BreakFinderBox / ControlFormBox / LoopSSA から LoopScope 情報を受け取り、
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// - Carrier だけを対象に exit PHI を構築する形に差し替える予定だよ。
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// - common_vars のハードコードは v2 実装時に削除する（箱理論 5.1: ハードコード禁止）。
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//
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// For MVP, assume common variables: i, n, item, etc.
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// In full implementation, would trace actual variable definitions
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local common_vars = new ArrayBox()
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common_vars.push("i")
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common_vars.push("n")
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@ -185,13 +220,20 @@ static box PhiInjectorBox {
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return 1
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}
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// Get variable value in block (simplified - return synthetic value ID)
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_get_var_value(json_str, block_id, var_name) {
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// For MVP, generate synthetic value IDs based on block and var
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// Format: "r{block_id}_{var_name}"
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// In full implementation, would trace actual SSA values
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return "r" + block_id + "_" + var_name
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}
|
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// Get variable value in block (simplified - return synthetic value ID)
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_get_var_value(json_str, block_id, var_name) {
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// For MVP, generate synthetic value IDs based on block and var.
|
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// Format: "r{block_id}_{var_name}" という「ダミー SSA ID」を返しているだけだよ。
|
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//
|
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// v2 では:
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// - JSON v0 から本当の SSA ValueId を追跡するか、
|
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// - Rust 側 LoopForm v2 / MirSchemaBox から得た補助情報を元に、
|
||||
// exit PHI に正しい value_id を配線する設計に差し替える。
|
||||
// - この synthetic フォーマットは「観測専用」の一時的なものとして扱う。
|
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//
|
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// In full implementation, would trace actual SSA values
|
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return "r" + block_id + "_" + var_name
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}
|
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|
||||
// Inject PHI instructions at block start
|
||||
_inject_phis_at_block(json_str, block_id, phi_vars) {
|
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|
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@ -1,55 +1,68 @@
|
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// Loop SSA - Exit PHI Generation for Loops with Breaks
|
||||
// Purpose: Detect loops and inject PHI nodes at exit blocks
|
||||
// Policy: Uses BreakFinderBox and PhiInjectorBox for modular implementation
|
||||
// LoopSSA - Exit PHI Generation for Loops with Breaks
|
||||
// Purpose:
|
||||
// - Stage‑1 Program(JSON v0) に対して、loop + break パターンを検出し、
|
||||
// exit block に PHI 相当の命令を注入する「SSA 補強フェーズ」の入口だよ。
|
||||
// - 自身はオーケストレータ箱として振る舞い、実際の解析/変換は
|
||||
// BreakFinderBox / PhiInjectorBox に委譲するよ。
|
||||
// Policy:
|
||||
// - 入力: Stage‑1 Program(JSON v0)（単一関数 or Program 全体）。
|
||||
// - 出力: exit PHI 相当の命令が入った Program(JSON v0)（文字列）。
|
||||
// - 解析: BreakFinderBox.find_breaks(json, trace_flag) が JSON を読み取り専用で解析。
|
||||
// - 変換: PhiInjectorBox.inject_exit_phis(json, breaks, trace_flag) が exit block をテキストベースで書き換える。
|
||||
// - 環境変数/トレース: HAKO_LOOPSSA_EXIT_PHI / HAKO_COMPILER_BUILDER_TRACE を LoopSSA 側で解釈し、
|
||||
// 下流には 0/1 の trace_flag だけを渡す（箱ごとに ENV を直読しない）。
|
||||
|
||||
using lang.compiler.builder.ssa.exit_phi.break_finder as BreakFinderBox
|
||||
using lang.compiler.builder.ssa.exit_phi.phi_injector as PhiInjectorBox
|
||||
|
||||
static box LoopSSA {
|
||||
// Main entry: Guard PHI-like merges at loop headers/exits
|
||||
// Phase 2-5 implementation: detect breaks and inject exit PHIs
|
||||
stabilize_merges(stage1_json) {
|
||||
local trace = env.get("HAKO_COMPILER_BUILDER_TRACE")
|
||||
|
||||
if trace != null && ("" + trace) == "1" {
|
||||
print("[loopssa] stabilize_merges start")
|
||||
}
|
||||
|
||||
// Check if exit PHI feature is enabled
|
||||
local enable_exit_phi = 1
|
||||
{
|
||||
local flag = env.get("HAKO_LOOPSSA_EXIT_PHI")
|
||||
if flag != null && ("" + flag) == "0" { enable_exit_phi = 0 }
|
||||
}
|
||||
|
||||
if enable_exit_phi == 0 {
|
||||
if trace != null && ("" + trace) == "1" {
|
||||
print("[loopssa] exit PHI disabled, pass-through")
|
||||
}
|
||||
return stage1_json
|
||||
}
|
||||
|
||||
// Phase 2: Find breaks in loops
|
||||
local breaks = BreakFinderBox.find_breaks(stage1_json)
|
||||
|
||||
if trace != null && ("" + trace) == "1" {
|
||||
print("[loopssa] found " + breaks.length() + " breaks")
|
||||
}
|
||||
|
||||
if breaks.length() == 0 {
|
||||
if trace != null && ("" + trace) == "1" {
|
||||
print("[loopssa] no breaks found, pass-through")
|
||||
}
|
||||
return stage1_json
|
||||
}
|
||||
|
||||
// Phase 3: Inject PHI nodes at exit blocks
|
||||
local result = PhiInjectorBox.inject_exit_phis(stage1_json, breaks)
|
||||
|
||||
if trace != null && ("" + trace) == "1" {
|
||||
print("[loopssa] exit PHIs injected successfully")
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
}
|
||||
static box LoopSSA {
|
||||
// Main entry: Guard PHI-like merges at loop headers/exits
|
||||
// Phase 2-5 implementation: detect breaks and inject exit PHIs
|
||||
stabilize_merges(stage1_json) {
|
||||
// Resolve trace flag once at the entry point（0/1 に正規化）
|
||||
local trace_env = env.get("HAKO_COMPILER_BUILDER_TRACE")
|
||||
local trace_flag = 0
|
||||
if trace_env != null && ("" + trace_env) == "1" { trace_flag = 1 }
|
||||
|
||||
if trace_flag == 1 {
|
||||
print("[loopssa] stabilize_merges start")
|
||||
}
|
||||
|
||||
// Check if exit PHI feature is enabled
|
||||
local enable_exit_phi = 1
|
||||
{
|
||||
local flag = env.get("HAKO_LOOPSSA_EXIT_PHI")
|
||||
if flag != null && ("" + flag) == "0" { enable_exit_phi = 0 }
|
||||
}
|
||||
|
||||
if enable_exit_phi == 0 {
|
||||
if trace_flag == 1 {
|
||||
print("[loopssa] exit PHI disabled, pass-through")
|
||||
}
|
||||
return stage1_json
|
||||
}
|
||||
|
||||
// Phase 2: Find breaks in loops
|
||||
local breaks = BreakFinderBox.find_breaks(stage1_json, trace_flag)
|
||||
|
||||
if trace_flag == 1 {
|
||||
print("[loopssa] found " + breaks.length() + " breaks")
|
||||
}
|
||||
|
||||
if breaks.length() == 0 {
|
||||
if trace_flag == 1 {
|
||||
print("[loopssa] no breaks found, pass-through")
|
||||
}
|
||||
return stage1_json
|
||||
}
|
||||
|
||||
// Phase 3: Inject PHI nodes at exit blocks
|
||||
local result = PhiInjectorBox.inject_exit_phis(stage1_json, breaks, trace_flag)
|
||||
|
||||
if trace_flag == 1 {
|
||||
print("[loopssa] exit PHIs injected successfully")
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
}
|
||||
|
||||
@ -11,7 +11,8 @@
|
||||
|
||||
// Note: sh_core must be in [modules] for parser dependencies to resolve
|
||||
using hako.compiler.entry.bundle_resolver as BundleResolver
|
||||
using lang.compiler.parser.box as ParserBox
|
||||
// ParserBox module: use `parser.parser_box` to avoid `box` keyword in path
|
||||
using lang.compiler.parser.parser_box as ParserBox
|
||||
using lang.compiler.entry.func_scanner as FuncScannerBox
|
||||
using lang.compiler.entry.using_resolver as Stage1UsingResolverBox
|
||||
using lang.compiler.builder.mod as CompilerBuilder
|
||||
|
||||
@ -12,10 +12,12 @@ static box FuncScannerBox {
|
||||
return me._scan_methods(source, box_name, 1, 0)
|
||||
}
|
||||
|
||||
// Scan all static box definitions and collect their methods.
|
||||
method scan_all_boxes(source) {
|
||||
local defs = new ArrayBox()
|
||||
local s = "" + source
|
||||
// Scan all static box definitions and collect their methods.
|
||||
method scan_all_boxes(source) {
|
||||
// source が null の場合はスキャン対象がないので空配列を返すよ。
|
||||
if source == null { return new ArrayBox() }
|
||||
local defs = new ArrayBox()
|
||||
local s = "" + source
|
||||
local n = s.length()
|
||||
local i = 0
|
||||
local in_str = 0
|
||||
@ -377,9 +379,11 @@ static box FuncScannerBox {
|
||||
return params
|
||||
}
|
||||
|
||||
// Helper: strip comments from source
|
||||
method _strip_comments(source) {
|
||||
local s = "" + source
|
||||
// Helper: strip comments from source
|
||||
method _strip_comments(source) {
|
||||
// source が null の場合はそのまま空文字として扱う（コメント除去する対象がないだけ）
|
||||
if source == null { return "" }
|
||||
local s = "" + source
|
||||
local out = ""
|
||||
local i = 0
|
||||
local n = s.length()
|
||||
|
||||
38
lang/src/compiler/tests/loopssa_breakfinder_min.hako
Normal file
38
lang/src/compiler/tests/loopssa_breakfinder_min.hako
Normal file
@ -0,0 +1,38 @@
|
||||
// loopssa_breakfinder_min.hako — Minimal LoopSSA/BreakFinder JSON test harness
|
||||
//
|
||||
// 目的:
|
||||
// - Stage‑B を経由せずに、LoopSSA + BreakFinderBox + PhiInjectorBox の経路だけを
|
||||
// 小さな Program(JSON v0) 文字列で通すミニハーネスだよ。
|
||||
// - まずは「単純な loop_header/loop_exit パターンで正常に動く」ことを確認する足場として使う。
|
||||
// - 将来的に Stage‑B 最小サンプルから抽出した JSON をここに貼り替えることで、
|
||||
// ValueId(50) 系の問題を再現しやすくすることを想定しているよ。
|
||||
//
|
||||
// JSON 形状（簡略版）:
|
||||
// {
|
||||
// "kind":"Program",
|
||||
// "functions":[
|
||||
// {
|
||||
// "name":"main",
|
||||
// "blocks":[
|
||||
// {"id":0,"loop_header":0,"loop_exit":2},
|
||||
// {"id":1},
|
||||
// {"id":2}
|
||||
// ]
|
||||
// }
|
||||
// ]
|
||||
// }
|
||||
//
|
||||
|
||||
using lang.compiler.builder.ssa.loopssa as LoopSSA
|
||||
|
||||
static box Main {
|
||||
method main(args) {
|
||||
local json = "{\"kind\":\"Program\",\"functions\":[{\"name\":\"main\",\"blocks\":[{\"id\":0,\"loop_header\":0,\"loop_exit\":2},{\"id\":1},{\"id\":2}]}]}"
|
||||
|
||||
// LoopSSA v2 を直接呼び出すよ（LoopSSA EXIT PHI パスのみ）
|
||||
local out = LoopSSA.stabilize_merges(json)
|
||||
print(out)
|
||||
return 0
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user