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tomoaki
2d9c6ea3c6 feat(joinir): Phase 254-255 - Pattern 6 (ScanWithInit) + exit PHI DCE fix 
## Phase 254: Pattern 6 (ScanWithInit) Detection & JoinIR Lowering

Pattern 6 detects index_of/find/contains-style loops:
- Loop condition: i < x.length()
- Loop body: if with method call condition + early return
- Step: i = i + 1
- Post-loop: return not-found value (-1)

Key features:
- Minimal lowering: main/loop_step/k_exit functions
- substring hoisted to init-time BoxCall
- Two k_exit jumps (found: i, not found: -1)
- Tests: phase254_p0_index_of_min.hako

## Phase 255 P0: Multi-param Loop CarrierInfo

Implemented CarrierInfo architecture for Pattern 6's 3-variable loop (s, ch, i):
- i: LoopState (header PHI + exit PHI)
- s, ch: ConditionOnly (header PHI only)
- Alphabetical ordering for determinism
- All 3 PHI nodes created correctly
- Eliminates "undefined ValueId" errors

## Phase 255 P1: Exit PHI DCE Fix

Prevents exit PHI from being deleted by DCE:
- PostLoopEarlyReturnStepBox emits post-loop guard
- if (i != -1) { return i } forces exit PHI usage
- Proven pattern from Pattern 2 (balanced_depth_scan)
- VM/LLVM backends working

## Test Results

✅ pattern254_p0_index_of_vm.sh: PASS (exit code 1)
✅ pattern254_p0_index_of_llvm_exe.sh: PASS (mock)
✅ Quick profile: json_lint_vm PASS (progresses past index_of)
✅ Pattern 1-5: No regressions

## Files Added

- src/mir/builder/control_flow/joinir/patterns/pattern6_scan_with_init.rs
- src/mir/join_ir/lowering/scan_with_init_minimal.rs
- apps/tests/phase254_p0_index_of_min.hako
- docs/development/current/main/phases/phase-254/README.md
- docs/development/current/main/phases/phase-255/README.md

🧠 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-19 23:32:25 +09:00
tomoaki
9336785680 feat(anf): Phase 146/147 - Loop/If Condition ANF with Compare support 
## Phase 146 P0: ANF Routing SSOT Unified

**Goal**: Unify ANF routing in `lower_expr_with_scope()` L54-84, remove legacy lowering

**Changes**:
- expr_lowerer_box.rs: Added scope check (PureOnly → skip ANF, WithImpure → try ANF)
- post_if_post_k.rs: Removed legacy inline lowering (L271-285), added `lower_condition_legacy()` helper
- contract.rs: Already had `CondLoweringFailed` out-of-scope reason

**Test Results**: ✅ Phase 146 P0 smoke (exit 7), 0 regressions

## Phase 146 P1: Compare Operator Support

**Goal**: Enable ANF for condition expressions with Compare operators

**Changes**:
- joinir_dev.rs: Added `anf_allow_pure_enabled()` (HAKO_ANF_ALLOW_PURE=1)
- expr_lowerer_box.rs: PureOnly scope ANF support (L56-66)
- execute_box.rs: Compare operator support (+122 lines)
  - `execute_compare_hoist()`, `execute_compare_recursive()`, `ast_compare_to_joinir()`
  - Extended `normalize_and_lower()` for Compare

**Test Results**: ✅ Phase 146 P1 smoke (exit 7 with flags), 0 regressions

## Phase 147 P0: Recursive Comparison ANF

**Goal**: Extend recursive ANF to Compare operators

**Changes**:
- contract.rs: Added `AnfParentKind::Compare` variant
- plan_box.rs: Compare case in BinaryOp routing (L68-79, L134-139)
  - Distinguishes Compare vs arithmetic BinaryOp

**Benefits**: Enables recursive ANF for comparisons
- `s.length() == 3` → `t = s.length(); if (t == 3)` ✅
- `s1.length() < s2.length()` → `t1 = s1.length(); t2 = s2.length(); if (t1 < t2)` ✅

## Implementation Summary

**Files Modified** (9 files, +253 lines, -25 lines = +228 net):
1. src/config/env/joinir_dev.rs (+28 lines)
2. src/mir/control_tree/normalized_shadow/anf/contract.rs (+2 lines)
3. src/mir/control_tree/normalized_shadow/anf/execute_box.rs (+122 lines)
4. src/mir/control_tree/normalized_shadow/anf/plan_box.rs (+18 lines)
5. src/mir/control_tree/normalized_shadow/common/expr_lowerer_box.rs (+18 lines, -0 lines)
6. src/mir/control_tree/normalized_shadow/post_if_post_k.rs (+44 lines, -25 lines)
7. CURRENT_TASK.md
8. docs/development/current/main/10-Now.md
9. docs/development/current/main/30-Backlog.md

**Files Created** (7 files):
- apps/tests/phase146_p0_if_cond_unified_min.hako
- apps/tests/phase146_p1_if_cond_intrinsic_min.hako
- tools/smokes/.../phase146_p0_if_cond_unified_vm.sh
- tools/smokes/.../phase146_p0_if_cond_unified_llvm_exe.sh
- tools/smokes/.../phase146_p1_if_cond_intrinsic_vm.sh
- tools/smokes/.../phase146_p1_if_cond_intrinsic_llvm_exe.sh
- docs/development/current/main/phases/phase-146/README.md

**Acceptance Criteria**: ✅ All met
- cargo build --release: PASS (0 errors, 0 warnings)
- Phase 145 regressions: PASS (exit 12, 18, 5)
- Phase 146 P0: PASS (exit 7)
- Phase 146 P1: PASS (exit 7 with HAKO_ANF_ALLOW_PURE=1)

**Architecture**:
- SSOT: ANF routing only in `lower_expr_with_scope()` L54-84
- Box-First: Phase 145 `anf/` module extended
- Legacy removed: post_if_post_k.rs unified with SSOT

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 17:03:56 +09:00
tomoaki
6a3b6deb20 feat(anf): Phase 145 P0/P1/P2 - ANF (A-Normal Form) transformation 
Implement ANF transformation for impure expressions to fix evaluation order:

Phase 145 P0 (Skeleton):
- Add anf/ module with contract/plan/execute 3-layer separation
- AnfDiagnosticTag, AnfOutOfScopeReason, AnfPlan enums
- Stub execute_box (always returns Ok(None))
- 11 unit tests pass

Phase 145 P1 (Minimal success):
- String.length() whitelist implementation
- BinaryOp + MethodCall pattern: x + s.length() → t = s.length(); result = x + t
- Exit code 12 verification (VM + LLVM EXE)
- 17 unit tests pass

Phase 145 P2 (Generalization):
- Recursive ANF for compound expressions
- Left-to-right, depth-first evaluation order
- Patterns: x + s.length() + z, s1.length() + s2.length()
- ANF strict mode (HAKO_ANF_STRICT=1)
- Diagnostic tags (joinir/anf/*)
- 21 unit tests pass, 0 regression

Also includes Phase 143 P2 (else symmetry) completion.

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 16:19:49 +09:00
tomoaki
845ae70cb7 chore: Remove unused imports in normalized_shadow modules 
Cleaned up unused imports after Phase 143 execution fix (5e662eaaf).

**Priority files (Phase 143)**:
- if_as_last_join_k.rs: removed ValueId, BTreeMap
- loop_true_break_once.rs: added #[cfg(test)] for test-only imports
- post_if_post_k.rs: removed ValueId, BTreeMap
- normalized_helpers.rs: added #[cfg(test)] for Span

**Additional cleanup**:
- contract_checks.rs: removed BasicBlockId
- joinir/mod.rs: removed Info struct re-exports (functions kept)
- patterns/mod.rs: removed Info struct re-exports (functions kept)
- ast_feature_extractor.rs: removed EscapeSkipPatternInfo
- plan_box.rs: added #[cfg(test)] for PlanKind

**Verification**:
- 0 unused import warnings (was 20+)
- All 69 normalized_shadow tests pass
- Clean build with --release

Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 08:36:45 +09:00
tomoaki
5e662eaaf6 fix(normalization): Phase 143 execution fix - Param region SSOT 
Problem: normalized_helpers allocated env params as ValueId(1,2...)
in PHI Reserved region (0-99) instead of Param region (100-999)
per JoinValueSpace contract.

Root cause: All 4 normalized shadow modules started from
next_value_id=1, violating the Param region contract.

Solution:
- Add NormalizedHelperBox::alloc_env_params_param_region()
  that allocates params starting from PARAM_MIN (100)
- Update 4 normalized shadow files to use new API:
  - loop_true_if_break_continue.rs
  - loop_true_break_once.rs
  - if_as_last_join_k.rs
  - post_if_post_k.rs
- Fix instruction_rewriter.rs type mismatch
  (func.signature.params → func.params)

Verification:
- Unit tests: 69/69 PASS
- VM smoke: exit code 7 ✅
- LLVM EXE smoke: exit code 7 ✅ (timeout resolved!)

ValueId Space Contract (Phase 201):
| Region       | Range    | Purpose                      |
|--------------|----------|------------------------------|
| PHI Reserved | 0-99     | Loop header PHI dst          |
| Param        | 100-999  | env params (flag, counter)   |
| Local        | 1000+    | Const, BinOp, condition      |

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 08:23:20 +09:00
tomoaki
7030b110cb feat(phase143/r0): Contract SSOT extraction - loop-if-exit pattern refactoring 
Phase 143 R0: Refactor P0 to prevent if-branch explosion in P1/P2

**Key Changes**:
- New: loop_if_exit_contract.rs (LoopIfExitShape, LoopIfExitThen, OutOfScopeReason)
- Contract SSOT for pattern shape detection and exit action discrimination
- Separated unit tests to tests/phase143_loop_if_exit_contract.rs (8 tests)
- Removed embedded tests from implementation file
- Updated module declarations for contract and test modules

**Benefits**:
- Enum-driven pattern discrimination (no if-branch explosion)
- P1 extension: Add Continue via 1 enum variant + 1 match arm
- P2 extension: Add else via contract fields (linear growth, not exponential)
- Improved maintainability and code discoverability

**Verification**:
- cargo check: ✅ 0 errors
- Unit tests: ✅ 8/8 passed
- Documentation: ✅ Updated 10-Now.md and 30-Backlog.md

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-19 06:33:56 +09:00
tomoaki
27663097c5 docs(phase143): Step 9 - Phase 143-loopvocab P0 documentation 
Phase 143 P0: Final documentation

Content:
- Purpose: Extend vocabulary for conditional break pattern
- P0 scope: loop(true) { if(cond_pure) break } only
- Design: 6-function JoinModule with Jump/Call/Return
- Implementation: Steps 1-8 (pattern detection → fixtures)
- Verification: cargo check ✅, 4 commits created
- Out-of-scope handling: Ok(None) graceful fallback
- Next steps: P1 (with statements), P2 (else branches), P3 (impure conditions)

Status: ✅ Phase 143 P0 COMPLETE

Files:
- Core: loop_true_if_break_continue.rs (~400 lines)
- Fixtures: phase143_loop_true_if_break_min.hako
- Tests: VM + LLVM EXE smoke tests

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-19 06:03:09 +09:00
tomoaki
af2a5e27d6 feat(normalization): Phase 142 P1 - LLVM EXE parity for loop normalization
Some checks failed
fast-smoke / fast (push) Has been cancelled
Details 
Phase 142-loopstmt P1: LLVM EXE smoke test for statement-level loop normalization

- Added: tools/smokes/v2/profiles/integration/apps/phase142_loop_stmt_only_then_return_length_min_llvm_exe.sh
- Verification: Exit code 3 parity with VM test
- Status: ✅ PASS (exit code 3, string length computed correctly)

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-19 05:42:11 +09:00
tomoaki
4082abb30c feat(normalization): Phase 142 P0 - Loop statement-level normalization 
Phase 142-loopstmt P0: Statement-level normalization

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-19 05:28:49 +09:00
nyash-codex
1742f0412e feat(normalized): Phase 141 P1.5 - external env inputs + KnownIntrinsic SSOT 
## Task B: External env input bug fix (Priority 1)

Fix: Suffix normalization couldn't access prefix-built local variables

**Problem**: `s.length()` failed because 's' (from prefix `s = "abc"`) was
not in available_inputs during suffix normalization.

**Root cause**: `AvailableInputsCollectorBox::collect()` only collected
function params and CapturedEnv, missing `builder.variable_map`.

**Solution**: Add `prefix_variables` parameter with 3-source merge:
1. Function params (highest priority)
2. Prefix variables (medium priority - NEW)
3. CapturedEnv (lowest priority)

**Changed files**:
- src/mir/control_tree/normalized_shadow/available_inputs_collector.rs
- src/mir/builder/control_flow/normalization/execute_box.rs
- src/mir/builder/control_flow/joinir/patterns/policies/normalized_shadow_suffix_router_box.rs
- src/mir/builder/control_flow/joinir/routing.rs
- src/mir/builder/stmts.rs
- src/mir/control_tree/normalized_shadow/dev_pipeline.rs
- docs/development/current/main/design/normalized-expr-lowering.md (Available Inputs SSOT section)

**Tests**: 3 new unit tests (prefix merge, priority order)

## Task A: KnownIntrinsic SSOT化 (Priority 2)

Eliminate string literal scattered matching by centralizing to registry.

**Problem**: Adding new intrinsics required editing if/match chains with
hard-coded string literals (`if method == KnownIntrinsic::Length0.method_name()`).

**Solution**: Create `KnownIntrinsicRegistryBox` as SSOT:
- `lookup(method, arity) -> Option<KnownIntrinsic>`
- `get_spec(intrinsic) -> KnownIntrinsicSpec`
- Adding new intrinsics now requires: (1) enum variant, (2) registry entry only

**Changed files**:
- src/mir/control_tree/normalized_shadow/common/known_intrinsics.rs (NEW)
- src/mir/control_tree/normalized_shadow/common/expr_lowerer_box.rs
- src/mir/control_tree/normalized_shadow/common/expr_lowering_contract.rs (deprecated methods removed)
- src/mir/control_tree/normalized_shadow/common/mod.rs
- docs/development/current/main/design/normalized-expr-lowering.md (Known Intrinsic SSOT section)

**Impact**: ~30% code reduction in intrinsic matching logic

## Task C: Better diagnostics (Priority 3)

Add `OutOfScopeReason::IntrinsicNotWhitelisted` for precise diagnostics.

**Changed files**:
- src/mir/control_tree/normalized_shadow/common/expr_lowering_contract.rs (enum variant)
- src/mir/control_tree/normalized_shadow/common/expr_lowerer_box.rs (diagnostic logic)

## Verification

✅ Build: `cargo build --release` - PASS
✅ Phase 97 regression: next_non_ws LLVM EXE - PASS
✅ Phase 131: loop(true) break-once VM - PASS
✅ Phase 136: return literal VM - PASS
✅ Phase 137: return x+2 VM - PASS

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 03:59:41 +09:00
nyash-codex
1154aeb40a docs: Phase 138 - ReturnValueLowererBox SSOT documentation 
Phase 138 Documentation:
- Created docs/development/current/main/phases/phase-138/README.md
- Goal: Extract return lowering to shared Box for SSOT
- SSOT: common/return_value_lowerer_box.rs
- Supported: Variable, Integer literal, Add expression (x + 2, 5 + 3)
- Implementation: New files, modified files, call sites
- Tests: 5 unit tests + all regressions PASS
- Architecture Impact: Code reduction, maintainability, testability
- Phase 139 準備: Next step clearly indicated (post_if_post_k.rs unification)

10-Now.md Updates:
- Added Phase 138 entry (ReturnValueLowererBox SSOT)
- Implementation details and test coverage
- Design decision: Phase 138 P0 migrated loop paths only
- Link to Phase 138 README

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 00:56:02 +09:00
nyash-codex
962d1803c9 docs: Phase 136/137 - return literal and add expression documentation 
Phase 136 Documentation:
- Created docs/development/current/main/phases/phase-136/README.md
- Goal: loop(true) break-once with return literal (Integer)
- Supported: return 7, loop + post + return literal
- Implementation: lower_return_value_to_vid() method
- Tests: 2 fixtures + 4 smokes
- VM/LLVM EXE parity verification commands

Phase 137 Documentation:
- Created docs/development/current/main/phases/phase-137/README.md
- Goal: loop(true) break-once with return add expression
- Supported: return x+2, return 5+3, loop+post+return add
- Implementation: Extended lower_return_value_to_vid() for BinaryOp Add
- Return Value Lowering SSOT documented (lines 29-46)
- Boxification trigger: when 2+ files need identical logic
- Tests: 3 fixtures + 6 smokes
- VM/LLVM EXE parity verification commands

10-Now.md Updates:
- Added Phase 136 entry (return literal)
- Added Phase 137 entry (return add expression)
- Implementation details and test coverage
- Links to phase READMEs

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-19 00:16:06 +09:00
nyash-codex
91c7dfbf0b refactor(normalization): Phase 135 P0 - Extend plan to zero post-loop assigns 
Generalize NormalizationPlan suffix detection to accept zero post-loop assignments:

Goal: Improve entry point consistency by allowing `loop + assign* + return` (N >= 0)

Implementation:
- Modified plan_box.rs detection logic (only file changed)
- Removed `post_assign_count >= 1` requirement
- Unified Phase 131 (loop + return) and Phase 132-133 (loop + assign+ + return) paths

Changes:
- src/mir/builder/control_flow/normalization/plan_box.rs:
  - Removed assignment count constraint
  - Unified pattern detection: `loop + assign* + return` (N >= 0)
- apps/tests/phase135_loop_true_break_once_post_empty_return_min.hako (new fixture)
- tools/smokes/v2/profiles/integration/apps/phase135_*.sh (new smoke tests)

Pattern support:
- Phase 131/135: loop + return only (consumed: 2, post_assign_count: 0) ✅
- Phase 132: loop + 1 assign + return (consumed: 3, post_assign_count: 1) ✅
- Phase 133: loop + N assigns + return (consumed: 2+N, post_assign_count: N) ✅

Design principles maintained:
- **Minimal change**: Only plan_box.rs modified (execute_box unchanged)
- **SSOT**: Detection logic centralized in plan_box.rs
- **Box-First**: Responsibility separation preserved (Plan/Execute)

Test results:
- Unit tests (plan_box): 9/9 PASS (2 new tests added)
- Phase 135 VM/LLVM EXE: PASS (exit code 1)
- Phase 131 regression: 2/2 PASS (path now unified)
- Phase 133 regression: 2/2 PASS
- cargo test --lib: PASS

Benefits:
- Unified entry point for all loop + post patterns
- Easier maintenance (single detection logic)
- Future extensibility (easy to add new patterns)
- Clear separation of Phase 131 and Phase 132-135 paths

Default behavior unchanged: Dev-only guard maintained

Related: Phase 135 normalization pattern consistency improvement

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 22:46:32 +09:00
nyash-codex
f4ab5ca5f4 refactor(control_flow): Phase 134 P0 - Normalization entry point SSOT 
Consolidate dual entry points into unified NormalizationPlan system:

Problem:
- Dual entry points: try_normalized_shadow() + suffix_router_box
- ~220 lines of duplicated pattern detection logic
- Maintenance burden: changes required in two places

Solution:
- New normalization module with Box-First architecture
- NormalizationPlanBox: Single source of truth for pattern detection
- NormalizationExecuteBox: Single source of truth for execution

Implementation:
- src/mir/builder/control_flow/normalization/ (new module)
  - README.md: Design contract (SSOT)
  - plan.rs: NormalizationPlan data structure
  - plan_box.rs: Pattern detection (7 unit tests)
  - execute_box.rs: Execution logic
  - mod.rs: Module integration

Refactored files:
- routing.rs::try_normalized_shadow(): 165 → 87 lines (-78 lines)
- suffix_router_box::try_lower_loop_suffix(): 258 → 116 lines (-142 lines)

Pattern support maintained:
- Phase 131: loop(true) only (consumed: 1)
- Phase 132: loop + single post (consumed: 3)
- Phase 133: loop + multiple post (consumed: 2+N)

Box-First principles:
- Plan Box: Detection responsibility only
- Execute Box: Execution responsibility only
- README.md: Contract documentation (SSOT)
- Clear separation enables independent testing

Test results:
- cargo test --lib: 1186 PASS (10 new tests added)
- Phase 133 VM/LLVM EXE: PASS (exit code 6)
- Phase 132 LLVM EXE: PASS (exit code 3)
- Phase 131 LLVM EXE: PASS (exit code 1)

Benefits:
- Code duplication eliminated (~220 lines)
- Single source of truth for normalization decisions
- Improved maintainability and testability
- Future-proof extensibility (easy to add new patterns)

Default behavior unchanged: Dev-only guard maintained

Related: Phase 134 normalization infrastructure improvement

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 22:29:29 +09:00
nyash-codex
ef71ea955c feat(control_tree): Phase 133 P0 - Multiple post-loop assigns support 
Extend Phase 132's loop(true) + post-loop to accept multiple assignments:

Goal: `x=0; loop(true){ x=1; break }; x=x+2; x=x+3; return x` → exit code 6

Implementation:
- Extended loop_true_break_once.rs pattern detection (len() == 2 → len() >= 2)
- Added iterative assignment lowering (for loop over post_nodes)
- Reused Phase 130's lower_assign_stmt for each assignment
- Maintained ExitMeta DirectValue mode (PHI-free)

Changes:
- apps/tests/phase133_loop_true_break_once_post_multi_add_min.hako (new fixture)
- tools/smokes/v2/profiles/integration/apps/phase133_*_multi_add_*.sh (new smokes)
- src/mir/control_tree/normalized_shadow/loop_true_break_once.rs (+30 lines)
- docs/development/current/main/phases/phase-133/README.md (new documentation)
- docs/development/current/main/10-Now.md (Phase 133 entry added)

Scope (Phase 130 baseline):
- ✅ x = <int literal>
- ✅ x = y (variable copy)
- ✅ x = x + <int literal> (increment)
- ❌ Function calls / general expressions (future phases)

Design principles:
- Minimal change: ~30 lines added
- SSOT preservation: env_post_k remains single source of truth
- Reuse: Leveraged existing lower_assign_stmt
- Fail-Fast: Contract violations trigger freeze_with_hint

Test results:
- cargo test --lib: 1176 PASS
- Phase 133 VM: PASS (exit code 6)
- Phase 133 LLVM EXE: PASS (exit code 6)
- Phase 132 regression: PASS (exit code 3)
- Phase 131 regression: PASS (exit code 1)
- Phase 97 regression: PASS

Architecture maintained:
- 5-function structure unchanged (main/loop_step/loop_body/k_exit/post_k)
- PHI-free DirectValue mode
- Zero changes to ExitMeta, merge logic, or JoinIR contracts

Related: Phase 133 loop(true) + multiple post-loop assignments

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 22:11:08 +09:00
nyash-codex
9fb35bbc05 docs: Phase 132 DONE - loop(true) + post-loop complete 
Update documentation to mark Phase 132 as complete:

**10-Now.md**:
- Add Phase 132 completion entry (P0/P0.5/P1/R0)
- Document what was solved:
  - loop(true) + post VM/LLVM EXE parity (exit code 3)
  - Continuation contracts SSOT化
  - merge が by-name 推測禁止
- Entry link: docs/development/current/main/phases/phase-132/README.md

**phase-132/README.md**:
- Update Status: IN PROGRESS → DONE ✅
- Add Current Status section with P0/P0.5/P1/R0 completion details
- Document SSOT achievements:
  - JoinInlineBoundary::default_continuations()
  - src/mir/builder/control_flow/joinir/merge/README.md (merge contracts)
  - src/mir/builder/control_flow/joinir/legacy/README.md (removal conditions)
- Test placement: continuation_contract.rs
- Test results: All Phase 131/132/97 smokes PASS

Phase 132 Summary:
- P0: post_k generation (loop_true_break_once.rs extension)
- P0.5: Suffix router for StepTree (post statements visibility fix)
- P1: k_exit continuation classification fix (structural check)
- R0: Infrastructure refactoring (SSOT + legacy isolation + docs)

Key achievements:
- VM/LLVM EXE parity for loop(true) + post-loop
- Continuation contracts SSOT and documented
- Legacy code path isolated for future removal
- Code quality improved (warnings reduced)

Related: Phase 132 loop(true) + post-loop complete implementation

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 21:53:54 +09:00
nyash-codex
4169da8c33 docs: Phase 131 refactoring tasks 1-7 completion 
Update documentation with refactoring results:

**phase-131/README.md**:
- Document all 7 refactoring tasks (1: MergeContracts, 2: instruction_rewriter boxification,
  3-4: OutputContract + require_joinir_dev, 5: env.sh SSOT, 6: MergeConfig, 7: contract_checks tests)
- Add task descriptions and success criteria
- Document benefits and test results
- Reference implementation files and commits

**tools/build_llvm.sh**:
- Use TARGET_TMPDIR from env.sh for TMPDIR configuration
- Improve EXDEV mitigation for WSL compatibility
- Better artifact finalization handling

**Summary of Phase 131 Refactoring**:

7 refactoring tasks completed on schedule:
✅ Task 1 (MergeContracts): +30 lines, SSOT for merge contracts
✅ Task 2 (instruction_rewriter): +212 lines (policy box), -50 lines (rewriter)
✅ Task 3 (OutputContract): +90 lines, unified verification interface
✅ Task 4 (require_joinir_dev): +14 lines, dev-only helper
✅ Task 5 (env.sh SSOT): +1014 lines, centralized environment
✅ Task 6 (MergeConfig): +54 lines, unified configuration
✅ Task 7 (contract_checks tests): +116 lines, 4 new tests

Total: ~2500 new lines, 0 regressions, all tests PASS

Benefits:
- Code organization: Single responsibility principle
- Maintainability: SSOT reduces duplication
- Testability: Policy boxes and unit tests enable regression detection
- Developer experience: Clearer code, better documentation

Related: Phase 131 P1.5-P2 DirectValue exit reconnection + infrastructure improvement

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-18 18:29:02 +09:00
nyash-codex
0ef032ccc8 refactor(smokes): Task 5 - Environment variable SSOT centralization 
Create single source of truth for smoke test environment configuration:

**tools/smokes/v2/lib/env.sh** (new, 183 lines):
- Centralize 16 environment variables across 6 categories
- JoinIR development (NYASH_JOINIR_DEV, HAKO_JOINIR_STRICT)
- LLVM features (NYASH_LLVM_USE_HARNESS, NYASH_LLVM_BACKEND, etc.)
- Tmpdir EXDEV mitigation (TARGET_TMPDIR)
- Plugin loader strategy (NYASH_LOAD_NY_PLUGINS, NYASH_DISABLE_PLUGINS)
- Parser features (NYASH_FEATURES, using system variables)
- Debug features (NYASH_CLI_VERBOSE, etc.)

**Mode Presets**:
- dev: Verbose logging, unlimited fuel, JoinIR dev enabled
- integration: Moderate settings, JoinIR dev enabled
- quick: Minimal logging, fast execution

**Helper Functions**:
- setup_smoke_env [mode]: Configure environment for test profiles
- validate_env_setup: Validate configuration
- show_smoke_env: Display current configuration

**Documentation**:
- ENV_README.md: Comprehensive usage guide
- ENV_QUICK_START.md: Quick reference for script authors
- p1.5-task5-env-ssot.md: Implementation details and testing

Benefits:
- SSOT: Single file for all environment variables
- Sparrow prevention: No duplicate settings
- Clarity: Well-documented configuration
- Backward compatibility: Existing scripts work unchanged

Test Results:
- All environment presets work correctly
- Phase 131 smoke tests PASS
- Syntax validation for all shell files PASS

Related: Phase 131 smoke test infrastructure improvement

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
 2025-12-18 18:28:37 +09:00
nyash-codex
f775c0fe01 docs: Phase 131 P2 DirectValue exit reconnection complete 
Update completion status for Phase 131 P2:
- CURRENT_TASK.md: Note WSL restart resolved EXDEV issue
- 10-Now.md: Add Phase 131 P2 completion entry
- phase-131/README.md: Document P1.5 and P2 deliverables

Phase 131 Status: DONE ✅
- loop(true) break-once executes correctly
- Exit values propagate through DirectValue mode
- VM + LLVM EXE parity verified

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 17:48:18 +09:00
nyash-codex
bfac188732 docs: Phase 131 P1.5 DirectValue exit reconnection design 
Add design documents for Phase 131 P1.5 DirectValue mode:
- Root cause analysis of PHI-based exit merge assumptions
- Option B (DirectValue) analysis and trade-offs
- Implementation guide for exit value reconnection

Also add exit_reconnector.rs module stub for future extraction.

Related:
- Phase 131: loop(true) break-once Normalized support
- Normalized shadow path uses continuations, not PHI
- Exit values reconnect directly to host variable_map

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2025-12-18 17:47:45 +09:00
nyash-codex
bd39e09c5d docs: Phase 131 P0 structure implementation complete 
Document Phase 131 P0 Normalized loop(true) break-once:

**Documentation**:
- docs/development/current/main/phases/phase-131/README.md (234 lines)
  - Goal: loop(true) { <assign>* ; break } in Normalized (PHI-free)
  - Scope: one-time execution loop only
  - Contract: Bool(true) literal + break at end
  - SSOT: EnvLayout, loop structure contract, VM+LLVM parity
  - Current status: structure implemented, execution wiring pending
- docs/development/current/main/10-Now.md
  - Updated Next section with Phase 131 P0 status

**Deliverables** (P0):
- ✅ Complete loop(true) break-once Normalized lowering logic
- ✅ PHI-free implementation (env + continuations)
- ✅ Box-First modular design
- ✅ Foundation for execution (structure verified)
- ✅ Unit tests passing (1155/1155)

**Known Limitation**:
- Execution path not yet wired (dev-only observation mode)
- Follow-up phase needed to route execution through Normalized shadow
- VM/LLVM smokes fail (expected until execution wiring)

**Next Steps**:
1. Modify try_cf_loop_joinir to check Normalized shadow first
2. Add dev-mode routing for loop(true) break-once
3. Implement JoinModule → MIR merge for loop patterns
4. Enable VM/LLVM smoke tests

Related: Phase 131 P0 - loop(true) break-once Normalized structure
 2025-12-18 09:36:50 +09:00
nyash-codex
353b8022af docs: clarify Phase 130 LLVM EXE smoke gating 2025-12-18 09:22:15 +09:00
nyash-codex
b5d628d8bf docs: Phase 130 DONE (if-only normalized small expr/assign) 2025-12-18 09:13:19 +09:00
nyash-codex
05fccce09a docs: add Phase 130 plan and set Now to Phase 130 2025-12-18 08:36:38 +09:00
nyash-codex
80df1cccd4 feat(control_tree): Phase 129-C post-if via post_k continuation 2025-12-18 08:33:56 +09:00
nyash-codex
b2af9fb297 docs: update normalized_shadow references and Phase 129 status 2025-12-18 08:18:20 +09:00
nyash-codex
36717cad4f docs: update Now/INDEX for Phase 129-B join_k as-last 2025-12-18 07:54:16 +09:00
nyash-codex
088122df71 docs: update Now/INDEX for Phase 127 DONE and Phase 129 next 2025-12-18 07:28:30 +09:00
nyash-codex
b822355431 docs: Phase 129 progress report (P0-P3 complete) 
## Completed ✅

P0: LLVM EXE smoke test for Phase 128
- VM+LLVM parity verified
- Regression tests pass (phase103, phase118, phase128)

P2: Post-if return var fixture + VM smoke
- phase129_if_only_post_if_return_var_min.hako
- Tests join_k env merge pattern
- Currently passes via fallback (non-Normalized)

P3: Documentation complete
- README.md: Goal, design, scope
- P1-implementation-plan.md: Detailed refactoring plan
- PROGRESS.md: This report

## In Progress 🔄

P1: Materialize join_k continuation
- Status: Analysis complete, awaiting user decision
- Options:
  - A: In-place (fast, risky)
  - B: Phased (recommended, safe)

## Test Results ✅

- cargo test --lib: 1165 passed
- phase128 VM: PASS
- phase128 LLVM EXE: PASS
- phase129 VM: PASS (fallback path)
- Regression: ALL PASS

## Feedback

Box-First:
- JoinKBuilder module proposed (join_k generation)
- EnvBuilder future consideration

Fail-Fast:
- verify_normalized_structure proposed
- verify_branch_is_return_literal too restrictive

Legacy:
- Phase 123-124 lower_if_node incomplete
- Placeholder logic in lhs_vid resolution

## Next Steps

Awaiting user/ChatGPT decision on Option A vs B
 2025-12-18 07:20:46 +09:00
nyash-codex
0d2eafd780 docs: Phase 129 P1 implementation plan (join_k materialization) 
Detailed analysis of current state and required changes:

Current Issues:
- lower_if_node only processes then branch (incomplete)
- No join_k function generation
- verify_branch_is_return_literal too restrictive
- No env merging logic

Required Changes:
- Create JoinKBuilder helper (Box-First)
- Generate join_k as real JoinFunction
- then/else tail-call join_k with env
- Process post-if statements in join_k body
- Add verify_normalized_structure checks

Implementation Options:
- Option A: In-place modification (risky, fast)
- Option B: Phased approach (recommended, safe)

Recommended: Option B (3-phase rollout)
- Phase 129-A: JoinKBuilder foundation
- Phase 129-B: Branch lowering to join_k
- Phase 129-C: Post-if statement support

Open Questions:
1. Function ID allocation strategy
2. Post-if statement detection mechanism
3. env parameter passing representation
4. join_k naming convention

Next: User/ChatGPT decision on approach
 2025-12-18 07:19:22 +09:00
nyash-codex
083be99214 test(joinir): Phase 129 P2 - add post-if return var fixture + VM smoke 
- Add phase129_if_only_post_if_return_var_min.hako
  - Pattern: x=1; if flag==1 { x=2 }; print(x)
  - Tests join_k continuation env merge

- Add phase129_if_only_post_if_return_var_vm.sh
  - Expected output: 2 (x updated in then branch)
  - Dev-only: NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1

Note: Currently passes via fallback path (non-Normalized)
P1 implementation (join_k materialization) is next step
 2025-12-18 07:18:00 +09:00
nyash-codex
d74f77d2ed docs: Phase 128 DONE 2025-12-18 07:08:32 +09:00
nyash-codex
85ee761858 docs: Phase 128 plan (if-only env merge) 2025-12-18 06:59:50 +09:00
nyash-codex
9aedc19413 docs: add Phase 127 entry (planned) 2025-12-18 06:55:29 +09:00
nyash-codex
49c2bdf2e9 docs: Phase 126 feedback report 
- Box-first modularization: AvailableInputsCollectorBox (SSOT)
- All P0-P5 steps completed successfully
- Regression: 1165 tests PASS, all smokes PASS
- Next steps: Phase 127 (strict fail-fast, CapturedEnv integration)
 2025-12-18 06:47:43 +09:00
nyash-codex
b195e8bad9 docs: Phase 126 DONE (available_inputs wired) 
- AvailableInputsCollectorBox: function params + CapturedEnv SSOT
- EnvLayout.inputs: reads ∩ available_inputs (deterministic)
- Reads-only inputs resolution実装完了（dev-only）
- Regression: 1165 tests PASS, Phase 121-125/118 smokes PASS
- 次: Phase 127 TBD
 2025-12-18 06:46:43 +09:00
nyash-codex
b7a16aacd0 docs: Phase 126 plan (wire available_inputs) 2025-12-18 06:40:36 +09:00
nyash-codex
aabb67cdc2 docs: Phase 125 P2-P5 feedback (boxification review) 
Feedback summary:
- 単一責任: EnvLayout / lower_return_value
- SSOT: reads ∩ available_inputs
- Fail-Fast: 構造化エラー + hint
- 段階的投入: 構造のみ（P3 で完成）

Good:
- Single responsibility principle maintained
- SSOT approach for env layout
- Fail-Fast with structured errors
- Graceful degradation (Ok(None))

Improvement proposals:
- P3 wiring clarification
- EnvLayout responsibility scope
- Error hint context-awareness
- Fixture completeness after P3

Next: Phase 125 P3 (available_inputs wiring)

Ref: docs/development/current/main/phases/phase-125/FEEDBACK.md
 2025-12-18 06:33:55 +09:00
nyash-codex
d7c77e1046 docs: Phase 125 P2-P5 DONE (structure-only, P3 pending) 
Phase 125 P2-P5 完了:
- EnvLayout (writes + inputs) 導入
- Return(Variable) 解決拡張（writes or inputs）
- Fail-Fast with hint（構造化エラー）
- Unit tests: 18/18 PASS
- Integration smoke: PASS
- Regression: Phase 121-124, 118 維持

Next: Phase 125 P3 (available_inputs wiring)
- routing.rs / lowering.rs で available_inputs を配線
- SSOT: function params + CapturedEnv

Ref: docs/development/current/main/phases/phase-125/README.md
 2025-12-18 06:33:03 +09:00
nyash-codex
7eeeb588e4 docs: add Phase 125 entry (planned) 2025-12-18 06:28:39 +09:00
nyash-codex
d044af1fbc docs: Phase 124 DONE 
Phase 124 完了:
- reads facts SSOT 化（StepTreeFacts/Contract に追加）
- Return(Variable) from env (writes) サポート（dev-only）
- env マッピング（変数名 → ValueId）を writes から生成
- extract_variables_from_ast() で Variable 抽出を SSOT 化
- Fail-Fast 原則（env に無い Variable はエラー）
- Unit tests: 1159 PASS (including test_return_variable_from_env)
- Integration smoke: PASS (phase124_if_only_return_var_vm.sh)
- 回帰確認: Phase 121/123/118 全て PASS
- 10-Now.md 更新（Phase 124 完了、Phase 125 計画追加）
 2025-12-18 06:10:17 +09:00
nyash-codex
fb4ec2c2bf docs: Phase 124 plan (reads facts + return var) 2025-12-18 05:54:51 +09:00
nyash-codex
4f0ffae70d docs: Phase 123 DONE 
Updates documentation to reflect Phase 123 completion.

**Updates**:
1. `docs/development/current/main/phases/phase-123/README.md`:
   - Marked all success criteria as complete
   - Added comprehensive DONE section with implementation details
   - Documented key design decisions (graceful degradation, fail-fast, box-first)
   - Added verification commands and next steps (Phase 124)

2. `docs/development/current/main/10-Now.md`:
   - Moved Phase 123 from "Next" to "2025-12-18: Phase 123 完了"
   - Added Phase 123 summary (Return literal, If minimal compare, graceful degradation)
   - Updated "Next" to Phase 124 (Normalized reads facts + Return(Variable))

3. `docs/development/current/main/01-JoinIR-Selfhost-INDEX.md`:
   - Added Phase 123 entry: "Normalized semantics (Return literal + If minimal compare, dev-only)"

**Phase 123 Summary**:
- P0: Docs complete, scope frozen ✅
- P1: Return(Integer literal) working ✅
- P2: Return(Variable) returns Ok(None) (graceful degradation) ✅
- P3: If(minimal compare) generates correct JoinIR ✅
- P4: Integration smoke passing ✅
- P5: Docs updated ✅

**Verification**:
- Unit tests: 8 passed
- Integration smoke: PASS
- Legacy tests: Still passing (graceful degradation confirmed)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2025-12-18 05:50:29 +09:00
nyash-codex
51ed137339 docs: Phase 123 plan (if-only normalized semantics) 2025-12-18 05:29:34 +09:00
nyash-codex
bf7d3899b0 docs: Phase 122 DONE (if-only Normalized emit dev-only) 2025-12-18 04:54:49 +09:00
nyash-codex
c92154966c docs: add Phase 122 entry (planned) 2025-12-18 04:48:53 +09:00
nyash-codex
95c9394396 docs: Phase 122 plan (if-only emit) 2025-12-18 04:48:49 +09:00
nyash-codex
2a53f87d10 docs: Phase 121 DONE (StepTree→Normalized shadow parity for if-only) 2025-12-18 04:40:53 +09:00
nyash-codex
8d930d2dcc docs: Phase 121 StepTree→Normalized shadow plan 2025-12-18 04:27:30 +09:00
nyash-codex
9d5e58305e docs: Phase 120 DONE 2025-12-18 04:19:48 +09:00