phase29ai(p13): memoize planner call in single_planner

docs/development/current/main/10-Now.md

@@ -2,7 +2,17 @@
 
 ## Current Focus: Phase 29ai（Plan/Frag single-planner）
 
-Next: `docs/development/current/main/phases/phase-29ai/P13-PLANNER-MEMOIZE-FACTS-IN_SINGLE_PLANNER-INSTRUCTIONS.md`
+Next: Phase 29ai P14（TBD: Pattern2 LoopBodyLocal promotion を Plan/Planner へ吸収）
+
+**2025-12-29: Phase 29ai P13 完了** ✅
+- 目的: single_planner の planner 呼び出しを 1 回に memoize して二重スキャンを解消（仕様不変）
+- 実装: `src/mir/builder/control_flow/plan/single_planner/rules.rs`
+- 検証: `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh` PASS
+
+**2025-12-29: Phase 29ai P12 完了** ✅
+- 目的: Pattern2 LoopBodyLocal promotion の facts 抽出を SSOT 化（仕様不変）
+- 実装: `src/mir/builder/control_flow/plan/facts/pattern2_loopbodylocal_facts.rs` / `src/mir/builder/control_flow/plan/facts/loop_facts.rs` / `src/mir/builder/control_flow/plan/facts/mod.rs`
+- 検証: `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh` PASS
 
 **2025-12-29: Phase 29ai P11 完了** ✅
 - 目的: Pattern2 break subset を Facts→Planner に吸収し、single_planner で planner-first を開始（仕様不変）

docs/development/current/main/30-Backlog.md

@@ -19,7 +19,7 @@ Related:
 
 - **Phase 29ai（candidate）: Plan/Frag single-planner（Facts SSOT）**
   - 入口: `docs/development/current/main/phases/phase-29ai/README.md`
-  - Next: `docs/development/current/main/phases/phase-29ai/P13-PLANNER-MEMOIZE-FACTS-IN_SINGLE_PLANNER-INSTRUCTIONS.md`
+  - Next: Phase 29ai P14（TBD: Pattern2 LoopBodyLocal promotion を Plan/Planner へ吸収）
 
 - **Phase 29ae P1（✅ COMPLETE）: JoinIR Regression Pack (SSOT固定)**
   - 入口: `docs/development/current/main/phases/phase-29ae/README.md`

docs/development/current/main/phases/phase-29ai/README.md

@@ -74,11 +74,15 @@ Goal: pattern 名による分岐を外部APIから消し、Facts（事実）→
 
 - 指示書: `docs/development/current/main/phases/phase-29ai/P12-FACTS-PATTERN2-LOOPBODYLOCAL-PROMOTION-INSTRUCTIONS.md`
 - ねらい: Pattern2 の “LoopBodyLocal promotion” を Facts として仕様化し、planner/emitter が二重に解析しない形へ寄せる（既定挙動は不変）
+- 完了: Pattern2LoopBodyLocal facts 抽出 + LoopFacts 接続（guard解除） + unit tests 追加
+- 検証: `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
 
 ## P13: Memoize Facts in single_planner（SSOT）
 
 - 指示書: `docs/development/current/main/phases/phase-29ai/P13-PLANNER-MEMOIZE-FACTS-IN_SINGLE_PLANNER-INSTRUCTIONS.md`
 - ねらい: planner 呼び出しを 1 回に収束し、Pattern6/7/2 の planner-first が二重に Facts を走らせないようにする（仕様不変）
+- 完了: single_planner 内で planner 結果を memoize し、Pattern6/7/2 は型一致時のみ採用
+- 検証: `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
 
 ## Verification (SSOT)
 

src/mir/builder/control_flow/plan/single_planner/rules.rs

@@ -13,6 +13,9 @@ use crate::mir::builder::control_flow::plan::DomainPlan;
 pub(super) fn try_build_domain_plan(ctx: &LoopPatternContext) -> Result<Option<DomainPlan>, String> {
     use crate::mir::builder::control_flow::joinir::trace;
 
+    let planner_opt = planner::build_plan(ctx.condition, ctx.body)
+        .map_err(|freeze| freeze.to_string())?;
+
     // NOTE: Names must match the previous PLAN_EXTRACTORS entries exactly.
     // Order must match exactly.
     let rules: &[RuleEntry] = &[
@@ -66,26 +69,20 @@ pub(super) fn try_build_domain_plan(ctx: &LoopPatternContext) -> Result<Option<D
         let (plan_opt, log_none) = match entry.kind {
             RuleKind::Simple(extract) => (extract(ctx)?, true),
             RuleKind::Pattern6 => {
-                let from_planner = planner::build_plan(ctx.condition, ctx.body)
-                    .map_err(|freeze| freeze.to_string())?;
-                match from_planner {
-                    Some(plan) => (Some(plan), false),
-                    None => (legacy_rules::pattern6::extract(ctx)?, true),
+                match planner_opt.as_ref() {
+                    Some(DomainPlan::ScanWithInit(_)) => (planner_opt.clone(), false),
+                    _ => (legacy_rules::pattern6::extract(ctx)?, true),
                 }
             }
             RuleKind::Pattern7 => {
-                let from_planner = planner::build_plan(ctx.condition, ctx.body)
-                    .map_err(|freeze| freeze.to_string())?;
-                match from_planner {
-                    Some(plan) => (Some(plan), false),
-                    None => (legacy_rules::pattern7::extract(ctx)?, true),
+                match planner_opt.as_ref() {
+                    Some(DomainPlan::SplitScan(_)) => (planner_opt.clone(), false),
+                    _ => (legacy_rules::pattern7::extract(ctx)?, true),
                 }
             }
             RuleKind::Pattern2 => {
-                let from_planner = planner::build_plan(ctx.condition, ctx.body)
-                    .map_err(|freeze| freeze.to_string())?;
-                match from_planner {
-                    Some(DomainPlan::Pattern2Break(_)) => (from_planner, false),
+                match planner_opt.as_ref() {
+                    Some(DomainPlan::Pattern2Break(_)) => (planner_opt.clone(), false),
                     _ => (legacy_rules::pattern2::extract(ctx)?, true),
                 }
             }