Commit Graph

102 Commits

Author SHA1 Message Date
e55665aa22 fix(joinir): verbose flag should not use env var (test pollution)
joinir_dev_enabled() was being used in verbose flags, causing debug
output to appear during smoke tests and polluting expected output.

Changed 3 locations from:
  let verbose = debug || crate::config::env::joinir_dev_enabled()
To:
  let verbose = debug

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-25 04:42:32 +09:00
5b74b3134a refactor(orchestrator): Phase 286C-4 Step 4 - Complete 3-stage pipeline (~1150 lines removed)
Transformed merge_and_rewrite() from monolithic function to orchestrator:

**File Reduction**:
- Before: 2437 lines
- After: 1289 lines
- Removed: 1148 lines (47% reduction)

**New Architecture**:
- Stage 1: scan_blocks() - Read-only analysis (~200 lines)
- Stage 2: plan_rewrites() - Generate rewritten blocks (~550 lines)
- Stage 3: apply_rewrites() - Mutate builder (~160 lines)

**merge_and_rewrite() Now**:
- Metadata setup (~80 lines)
- Call 3-stage pipeline (~50 lines)
- DirectValue processing (~50 lines)
- Result building (~20 lines)
- Total: ~200 lines (down from ~1350)

**Benefits**:
- Clear separation of concerns (scan/plan/apply)
- No builder mutation until apply stage
- Easier to test and maintain
- Preserves all functionality

Build passes successfully. Phase 286C-4 complete.
2025-12-25 04:09:11 +09:00
8619ed07b9 feat(apply): Phase 286C-4 Step 3 - Implement apply_rewrites() (~160 lines)
Implemented apply_rewrites() stage to mutate MirBuilder:

**Block Addition**:
- Add all new blocks to current function
- Debug logging for blocks with 4+ instructions

**Boundary Injection** (~100 lines):
- Call BoundaryInjector::inject_boundary_copies()
- Build value_map for join_inputs and condition_bindings
- Collect PHI dst IDs from loop_header_phi_info

**Context Updates**:
- Add phi_inputs to ctx.exit_phi_inputs
- Add carrier_inputs to ctx.carrier_inputs

**Fix**:
- Use `ref args` in tail_call_target destructuring to avoid move error

Build passes successfully.
2025-12-25 04:04:50 +09:00
21e855d62a feat(plan): Phase 286C-4 Step 2 - Complete plan_rewrites() (~370 lines)
Added parameter binding insertion and terminator conversion to plan_rewrites():

**Parameter Binding (~100 lines)**:
- Generate Copy instructions for tail call arguments
- Handle recursive/continuation/normal tail calls
- Skip bindings for loop header PHIs
- Record latch incoming for loop header PHI

**Terminator Conversion (~270 lines)**:
- Return → Jump conversion using ReturnConverterBox
- Exit value collection using ExitArgsCollectorBox
- Update result.phi_inputs and result.carrier_inputs
- Handle tail call Jump terminators with classification

Plan stage now generates complete RewrittenBlocks ready for apply stage.
Build passes with warnings only.
2025-12-25 04:01:44 +09:00
a78742b6d7 refactor(plan): Phase 286C-4 Step 2 - plan_rewrites() initial implementation
Extract block generation logic from merge_and_rewrite() into plan_rewrites():
- Function/block initialization (~70 lines)
- First pass: instruction filtering (~180 lines)
- Span synchronization (~20 lines)

Implemented:
- Instruction filtering using InstructionFilterBox
- Block ID remapping with local_block_map
- PHI dst protection for loop headers
- Deterministic function/block iteration

TODO (Step 2 continuation):
- Parameter binding insertion for tail calls (~100 lines)
- Terminator conversion logic (~270 lines)
- Exit PHI/carrier input collection

Current: ~290 lines extracted, target ~550 lines

Progress: Step 2/4 (plan_rewrites) partial

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-25 03:57:43 +09:00
a40ee8dda5 refactor(plan): Phase 286C-4 Step 1 - plan_helpers module
Create helper functions to support plan_rewrites() extraction:
- build_local_block_map(): Build block ID mapping for a function
- sync_spans(): Synchronize instruction spans after rewriting

These pure functions will be used by both the current monolithic
merge_and_rewrite() and the new plan_rewrites() function.

Progress: Step 1/4 (helpers) complete

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-25 03:53:42 +09:00
875c5e02fd refactor(joinir): Phase 286C-2.1 Steps 3-5 - Extract scan logic, fix debug output
Step 3 Complete:
- Extract 94 lines of scan logic into scan_blocks()
- Populate RewritePlan with TailCallRewrite, ReturnConversion
- Read-only analysis phase (no mutations)

Steps 4-5 Partial:
- Document 3-stage pipeline architecture
- Infrastructure ready for future extraction
- Remaining extraction deferred to Phase 286C-2.2

Bug Fix:
- Remove joinir_dev_enabled() from verbose flag in scan_blocks()
- Prevents unintended debug output during tests
- Smoke tests now pass (45/46, 1 known fail unrelated)

Current State:
- scan_blocks(): 94 lines  functional
- plan_rewrites(): stub (future extraction ~400 lines)
- apply_rewrites(): stub (future extraction ~200 lines)
- merge_and_rewrite(): ~1300 lines (target ~150 lines)

Build: cargo build --release 
Tests: 45/46 pass (1 known JoinIR pattern fail)

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-25 03:45:16 +09:00
bfee1fd451 refactor(joinir): Phase 286C-2.1 Step 4-5 (Partial) - Document 3-stage pipeline structure
Steps 3-5 Summary:
-  Step 3: scan_blocks() extraction complete (94 lines, functional)
-  Step 4-5: Documented plan/apply separation (requires future work)

What was achieved:
1. scan_blocks() now identifies tail calls and returns (read-only)
2. Clear orchestrator structure documented in merge_and_rewrite()
3. Strategic markers show what belongs to each stage
4. Foundation laid for future extraction of plan/apply logic

Current state:
- scan_blocks(): 94 lines (EXTRACTED )
- plan_rewrites(): Stub (main loop lines 380-1469 contains logic)
- apply_rewrites(): Stub (builder mutations intertwined with plan)
- merge_and_rewrite(): ~1300 lines (needs further refactoring)

Target state (future work):
- scan_blocks(): ~100 lines (identification only)
- plan_rewrites(): ~400 lines (block generation, no builder mutation)
- apply_rewrites(): ~200 lines (builder mutation only)
- merge_and_rewrite(): ~100-200 lines (orchestrator)

Why partial completion:
- Main loop (1400 lines) has highly intertwined plan + apply logic
- Safe extraction requires careful separation (multi-session work)
- Current commit achieves scan extraction + clear architecture docs
- Follows 80/20 rule: Working scan stage + clear path forward

Next steps (future):
- Extract parameter binding logic → plan_rewrites()
- Extract block generation logic → plan_rewrites()
- Extract builder.add_block() calls → apply_rewrites()
- Move PHI/carrier input collection → plan_rewrites()

Build: cargo build --release 
Tests: Existing tests pass (no behavior changes)

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-25 03:31:43 +09:00
7e259ad334 refactor(joinir): Phase 286C-2.1 Step 3 - Extract scan logic into scan_blocks()
- Move instruction identification logic from main loop to scan_blocks()
- Populate RewritePlan with tail_calls, return_conversions
- Read-only analysis phase complete (no mutations, just detection)
- merge_and_rewrite() now calls scan_blocks() to identify rewrites

Scan logic extracted:
- Tail call detection: Check Call instructions for intra-module calls
- Return detection: Identify Return terminators for exit jump conversion
- Populate TailCallRewrite with target_func_name, target_block, args
- Populate ReturnConversion with return_value, has_exit_edge_args

Build: cargo build --release 

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-25 03:28:53 +09:00
f2458280c1 refactor(joinir): Phase 286C-2.1 Step 1 - Create 3-stage function stubs
- Create scan_blocks() stub (Stage 1: Read-only analysis)
- Create plan_rewrites() stub (Stage 2: Pure transformation)
- Create apply_rewrites() stub (Stage 3: Builder mutation)
- Add strategic markers for future extraction (STAGE 1/2/3)
- Document future orchestrator structure

Function Signatures:
- scan_blocks(&MirFunction, &JoinInlineBoundary, &RewriteContext) -> Result<RewritePlan, String>
- plan_rewrites(RewritePlan, &mut RewriteContext) -> Result<RewrittenBlocks, String>
- apply_rewrites(&mut MirBuilder, RewrittenBlocks) -> Result<(), String>

Benefits:
- Borrow checker safety: Sequential calling pattern (no overlapping borrows)
- Clear extraction targets: TODO markers identify logic to move
- Build stability: Stubs compile successfully, no functionality changes yet
- Foundation for incremental refactoring: Steps 2-5 can now proceed safely

Strategic Markers:
- Line 205: STAGE 1 marker (scan logic)
- Line 282: STAGE 2 marker (plan logic)
- Line 1355: STAGE 3 marker (apply logic)
- Line 1514: Future orchestrator structure

Status:
- Scaffolding:  Complete (stubs in place)
- Extraction:  Next step (move logic from merge_and_rewrite to stubs)

Build: cargo build --release 

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-25 03:19:06 +09:00
1a8a70cc99 refactor(joinir): Phase 286C-2.1 - 3-stage pipeline scaffolding (Scan/Plan/Apply)
- Create 3-stage pipeline architecture to solve borrow checker conflicts
- Stage 1 (ScanBox): Read-only scanning, identify rewrites (170 lines)
- Stage 2 (PlanBox): Pure transformation, generate new blocks (85 lines)
- Stage 3 (ApplyBox): Builder mutation only (75 lines)

New Files:
- scan_box.rs: Stage 1 - Read-only scan for RewritePlan
- plan_box.rs: Stage 2 - Transform RewritePlan → RewrittenBlocks
- apply_box.rs: Stage 3 - Apply RewrittenBlocks to MirBuilder
- C-2.1-pipeline-refactoring.md: Implementation guide

Data Structures:
- RewritePlan: Describes WHAT to rewrite (tail calls, returns, PHI, params)
- RewrittenBlocks: Contains HOW to rewrite (new blocks, replacements, inputs)

Benefits:
- Borrow checker safety: No overlapping mutable/immutable borrows
- Single responsibility: Each stage has one clear purpose
- Testability: Each stage can be unit tested independently
- Maintainability: Clear data flow, isolated changes

Status:
- Scaffolding:  Complete (structure defined, stub implementations)
- Integration:  Next step (refactor merge_and_rewrite to use 3 stages)

Build: cargo build --release 

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-25 03:05:44 +09:00
d81937e744 refactor(joinir): Phase 286C-2 - RewriteContext state consolidation
- Create RewriteContext struct to consolidate 11 scattered state variables
- Add 4 helper Boxes: InstructionFilterBox, ParameterBindingBox, ReturnConverterBox, TailCallDetectorBox
- Reduce instruction_rewriter.rs cognitive overhead via centralized state API
- All state mutations now go through consistent RewriteContext methods

Changes:
- New: rewrite_context.rs (94 lines) - State consolidation SSOT
- New: 4 helper Box modules (instruction_filter, parameter_binding, return_converter, tail_call_detector)
- Modified: instruction_rewriter.rs (1454 → 1421 lines)
- Modified: rewriter/mod.rs (export RewriteContext)

Benefits:
- State tracking simplified (11 variables → 1 context object)
- Clearer intent via API methods (add_exit_phi_input vs push)
- Foundation for future refactoring (Phase 286C-2.1: 3-stage pipeline)
- Zero functionality changes (pure refactoring)

Build: cargo build --release 

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-25 02:58:36 +09:00
843d094598 refactor(joinir): Phase 286 P1-P3 - Boundary contract context enrichment
- P1: Add alloc_join_param()/alloc_join_local() API to JoinValueSpace
  - Prevents future API misuse (thin wrappers with explicit "JoinIR" context)
  - Updated docs with footnote-style number references

- P2: Enrich error context with host_fn for better diagnostics
  - Added context: &str parameter to verify_boundary_contract_at_creation()
  - Error format now shows: [merge_joinir_mir_blocks host=<fn> ...]

- P3: Add join-side info to error context (continuation count + boundary summary)
  - Uses boundary.continuation_func_ids.len() for join=
  - Adds [conts=X exits=Y conds=Z] suffix with fixed key names
  - Enables faster debugging with log-searchable format

Error format: [merge_joinir_mir_blocks host=X join=Y [conts=A exits=B conds=C]]

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-25 02:15:40 +09:00
b0eeb14c54 refactor(phase284): P1 SSOT Consolidation - Block Remapper & Return Emitter
## Summary

Refactored Phase 284 P1 codebase to consolidate scattered logic into SSOT
(Single Source of Truth) modules, improving maintainability and enabling
Pattern4/5 code reuse.

## New Modules

### 1. Block Remapper SSOT
**File**: `src/mir/builder/control_flow/joinir/merge/block_remapper.rs` (152 lines)

- **Purpose**: Consolidate block ID remapping logic (Phase 284 P1 fix)
- **Function**: `remap_block_id(block_id, local_block_map, skipped_entry_redirects)`
- **Rule**: local_block_map priority > skipped_entry_redirects (prevents ID collision)
- **Tests**: 4 unit tests (priority cascade, collision handling, etc.)

### 2. Return Jump Emitter
**File**: `src/mir/join_ir/lowering/return_jump_emitter.rs` (354 lines)

- **Purpose**: Reusable return handling helper for Pattern4/5
- **Function**: `emit_return_conditional_jump(loop_step_func, return_info, k_return_id, ...)`
- **Scope**: P1 - unconditional return + conditional (loop_var == N) only
- **Tests**: 3 unit tests (unconditional, no return, conditional)

## Modified Files

**merge/instruction_rewriter.rs** (-15 lines):
- Replaced inline block remapping with `remap_block_id()` call
- Cleaner Branch remap logic

**merge/rewriter/terminator.rs** (-43 lines):
- Delegates remap_jump/remap_branch to block_remapper SSOT
- Simplified duplicate logic

**lowering/loop_with_continue_minimal.rs** (-108 lines):
- Replaced ~100 line return handling with `emit_return_conditional_jump()` call
- Extracted helper functions to return_jump_emitter.rs
- Line reduction: 57% decrease in function complexity

**merge/mod.rs, lowering/mod.rs**:
- Added new module exports (block_remapper, return_jump_emitter)

**phase-284/README.md**:
- Updated completion status (P1 Complete + Refactored)
- Added SSOT consolidation notes
- Documented module architecture

## Code Quality Improvements

| Metric | Before | After | Change |
|--------|--------|-------|--------|
| Duplicate block remap logic | 2 places | SSOT | -15 lines |
| Return handling code | inline (100L) | helper call | -99 lines |
| Testability | Limited | Unit tests (7) | +7 tests |
| Module cohesion | Low (scattered) | High (consolidated) | Better |

## Testing

 Build: Success (cargo build --release)
 Smoke tests: All pass (46 PASS, 1 pre-existing FAIL)
 Regression: Zero
 Unit tests: 7 new tests added

## Future Benefits

1. **Pattern5 Reuse**: Direct use of `emit_return_conditional_jump()` helper
2. **Phase 285 (P2)**: Nested if/loop returns via same infrastructure
3. **Maintainability**: SSOT reduces debugging surface area
4. **Clarity**: Each module has single responsibility

## Architectural Notes

**Block Remapper SSOT Rule**:
```
remap_block_id(id, local_block_map, skipped_entry_redirects):
  1. Check local_block_map (function-local priority)
  2. Fall back to skipped_entry_redirects (global redirects)
  3. Return original if not found
```

Prevents function-local block ID collisions with global remap entries.

**Return Emitter Pattern**:
```
emit_return_conditional_jump(func, return_info, k_return_id, alloc_value):
  - Pattern1-5: All use same infrastructure
  - P1 scope: top-level return only (nested if/loop → P2)
  - Returns: JoinInst::Jump(cont=k_return, cond=Some(return_cond))
```

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2025-12-23 14:37:01 +09:00
661bbe1ab7 feat(phase284): P1 Complete - Return in Loop with Block Remap Fix
## Summary

Completed Phase 284 P1: Enable return statements in Pattern4/5 loops via
JoinInst::Ret infrastructure (100% pre-existing, no new infrastructure needed).

**Critical Bug Fix**: Block ID remap priority
- Fixed: local_block_map must take precedence over skipped_entry_redirects
- Root cause: Function-local block IDs can collide with global remap entries
  (example: loop_step:bb4 vs k_exit:bb4 after merge allocation)
- Impact: Conditional Jump else branches were incorrectly redirected to exit
- Solution: Check local_block_map FIRST, then skipped_entry_redirects

## Implementation

### New Files
- `src/mir/join_ir/lowering/return_collector.rs` - Return detection SSOT (top-level only, P1 scope)
- `apps/tests/phase284_p1_return_in_loop_min.hako` - Test fixture (exit code 7)
- Smoke test scripts (VM/LLVM)

### Modified Files
- `loop_with_continue_minimal.rs`: Return condition check + Jump generation
- `pattern4_with_continue.rs`: K_RETURN registration in continuation_funcs
- `canonical_names.rs`: K_RETURN constant
- `instruction_rewriter.rs`: Fixed Branch remap priority (P1 fix)
- `terminator.rs`: Fixed Jump/Branch remap priority (P1 fix)
- `conversion_pipeline.rs`: Return normalization support

## Testing

 VM: exit=7 PASS
 LLVM: exit=7 PASS
 Baseline: 46 PASS, 1 FAIL (pre-existing emit issue)
 Zero regression

## Design Notes

- JoinInst::Ret infrastructure was 100% complete before P1
- Bridge automatically converts JoinInst::Ret → MIR Return terminator
- Pattern4/5 now properly merge k_return as non-skippable continuation
- Correct semantics: true condition → return, false → continue loop

## Next Phase (P2+)

- Refactor: Block remap SSOT (block_remapper.rs)
- Refactor: Return jump emitter extraction
- Scope: Nested if/loop returns, multiple returns
- Design: Standardize early exit pattern (return/break/continue as Jump with cond)

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2025-12-23 14:21:27 +09:00
bfbc9b26bf fix(joinir): Phase 283 P0 - Pattern3 Undefined ValueId Bug Fix
- Fix: extract_if_condition() moved after local_cond_env construction
  (loop_with_if_phi_if_sum.rs:175)
  - Root cause: condition extraction before i_param/sum_param creation
  - Result: i % 2 referenced caller's ConditionEnv with unmapped ValueId
- Fail-Fast: Add condition_bindings validation in merge (mod.rs)
- Fixture: Update loop_if_phi.hako for C2 compatibility (sum.toString())
- Verified: VM execution outputs sum=9 

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-23 08:14:27 +09:00
1b7fd7a0ff refactor(plan): Phase 273 P3+ - Legacy code removal
Phase 273 P3+ 完成: レガシーコード削除 + 未使用 import 整理

Removed Legacy Items:
1. emit_scan_with_init_edgecfg() - Pattern6 固有の emission 関数
   - File deleted: src/mir/builder/emission/loop_scan_with_init.rs (~144 lines)
   - Replaced by: generalized Frag API (Phase 273 P2)

2. CoreCarrierInfo struct - Legacy carrier representation
   - Removed from: src/mir/builder/control_flow/plan/mod.rs (~15 lines)
   - Replaced by: CorePhiInfo (generalized PHI representation)

3. verify_carrier() function - CoreCarrierInfo validator
   - Removed from: src/mir/builder/control_flow/plan/verifier.rs (~15 lines)
   - Replaced by: generalized PHI verification (V7-V9)

Code Cleanup:
- cargo fix applied: unused imports removed (~30 files)
- Verifier invariants updated: V1→V2-V9 (carrier→PHI model)
- Module declaration cleanup in emission/mod.rs

Impact:
- Total lines removed: ~174 lines (net reduction)
- Pattern-agnostic architecture strengthened
- All legacy Pattern6 references eliminated

Tests:
-  VM tests PASS (phase254/256/258)
-  LLVM tests PASS (phase256/258)

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-23 00:11:20 +09:00
c0334f8b7e refactor(mir): phase260 p0.2 hide legacy edge-args reads behind BasicBlock API
- Add block.return_env() getter for Return env metadata
- Update instruction_rewriter.rs to use block.return_env()
- Update exit_collection.rs to use block.return_env()
- Prepare for Phase 260 P2 (jump_args deletion)

This consolidates all legacy edge-args reads through BasicBlock API,
enabling clean deletion of jump_args field in P2.
2025-12-21 09:01:35 +09:00
aa3fdf3c18 refactor(joinir): Phase 260 P0.1 Step 6b - fix tests and add TODO
- Fix helpers.rs tests to use new MirFunction::new(FunctionSignature, BasicBlockId) API
- Update continuation_contract.rs import path to use rewriter::helpers
- Add TODO comment for future exit_collection integration
- All 6 rewriter tests pass

The exit_collection module is complete and tested but full integration
with instruction_rewriter.rs deferred (80/20 rule - logging context
and flow control require careful refactoring).

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-21 06:33:11 +09:00
cbed040a74 refactor(joinir): Phase 260 P0.1 Step 6 - extract exit_collection.rs
Extract exit value collection logic from instruction_rewriter.rs into
dedicated rewriter/exit_collection.rs module (~305 lines).

New functions:
- collect_exit_values_from_legacy_edge_args(): Phase 246-EX collection
- add_carrier_values_to_inputs(): carrier values → carrier_inputs map
- handle_fallback_exit_collection(): Phase 246-EX/131 P1.5 fallback
- collect_k_exit_values(): k_exit tail call lowering (Phase 131)

Key changes:
- ExitCollectionResult struct for structured return values
- Uses Vec<(String, (BasicBlockId, ValueId))> for carrier_values
  (matching ExitArgsCollectorBox output format)
- Logging removed from helpers (caller handles via local log! macro)
- 3 unit tests for add_carrier_values_to_inputs

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-21 06:28:09 +09:00
15b3352e21 refactor(joinir): Phase 260 P0.1 Step 5 - Extract terminator.rs (Jump/Branch remapping)
Extract Jump/Branch terminator remapping to dedicated module.
3 clean functions: remap_jump, remap_branch, apply_remapped_terminator.

Changes:
- NEW: rewriter/terminator.rs - 3 functions (145 lines)
  - remap_jump(): Jump block ID + edge_args remapping
  - remap_branch(): Branch block ID + condition + edge_args remapping
  - apply_remapped_terminator(): Apply remapped terminator with edge_args handling
- CHANGED: instruction_rewriter.rs - use terminator module (deleted local logic)
  - Deleted remap_edge_args closure (lines 902-911)
  - Replaced Jump remapping (lines 1056-1067) → remap_jump()
  - Replaced Branch remapping (lines 1069-1094) → remap_branch()
  - Replaced terminator setting (lines 1098-1127) → apply_remapped_terminator()
- CHANGED: rewriter/mod.rs - declare terminator module

Benefits:
- Phase 259 P0 FIX: skipped_entry_redirects handling centralized
- Testable in isolation (pure block ID/ValueId mapping)
- Reduces instruction_rewriter.rs by ~40 lines

Reduction:
- instruction_rewriter.rs: 1396 → ~1356 lines (-40)

Next: Extract exit_collection.rs (Return→Jump + exit value collection)
2025-12-21 06:17:14 +09:00
d9ff3f60ff refactor(joinir): Phase 260 P0.1 Step 4 - Extract type_propagation.rs (70 lines)
Extract propagate_value_type_for_inst to dedicated type_propagation module.
Handles type info flow from JoinIR→MIR merge (SSOT + fallback inference).

Changes:
- NEW: rewriter/type_propagation.rs - propagate_value_type_for_inst
- CHANGED: instruction_rewriter.rs - import from type_propagation (deleted local fn)
- CHANGED: rewriter/mod.rs - declare type_propagation module

Design:
- SSOT: Prefer type info from JoinIR source function metadata
- Fallback: Infer from instruction structure (Const/Copy/BinOp/Compare)
- LLVM: Ensures '+' stays numeric (not concat_hh_mixed)

Reduction:
- instruction_rewriter.rs: 1466 → 1396 lines (-70)

Next: Start terminator.rs extraction (Branch/Jump/Return remapping)
2025-12-21 06:11:53 +09:00
e555b4ad31 refactor(joinir): Phase 260 P0.1 Step 3 - Extract helpers.rs (is_skippable_continuation)
Extract is_skippable_continuation to dedicated helpers module.
Small pure function (12 lines) with comprehensive tests (3 test cases).

Changes:
- NEW: rewriter/helpers.rs - is_skippable_continuation + 3 tests
- CHANGED: instruction_rewriter.rs - import from helpers (deleted local definition)
- CHANGED: rewriter/mod.rs - re-export from helpers

Benefits:
- Testable in isolation (pure function)
- Clear module boundary (structural checks)
- instruction_rewriter.rs: 1477 → 1466 lines (-11)

Tests:
- test_is_skippable_continuation_pure_stub 
- test_is_skippable_continuation_has_instructions 
- test_is_skippable_continuation_multiple_blocks 

Next: Extract type_propagation.rs (propagate_value_type_for_inst - 70 lines)
2025-12-21 06:09:45 +09:00
b87760e247 refactor(joinir): Phase 260 P0.1 Step 2 - Extract logging.rs (DEBUG-177 style)
Extract logging utilities into dedicated module (safest first split).
Provides log_if() function + rewriter_log!() macro as alternatives to local log! macro.

Changes:
- NEW: rewriter/logging.rs - log_if() + rewriter_log!() macro
- CHANGED: rewriter/mod.rs - declare logging module

Design:
- log_if(trace, enabled, msg): Function form for explicit control
- rewriter_log!(): Macro form for format!() convenience
- Both wrap JoinLoopTrace::stderr_if() (existing infrastructure)

Status:
- instruction_rewriter.rs still uses local log! macro (unchanged)
- Future: Gradually migrate to logging::log_if() or rewriter_log!()
- cargo check PASS 

Next: Extract is_skippable_continuation to helpers.rs (smallest function)
2025-12-21 06:06:29 +09:00
4bc469239d refactor(joinir): Phase 260 P0.1 Step 1 - Create rewriter/ skeleton (box-first modularization)
Create rewriter/ directory with re-export skeleton for instruction_rewriter.rs.
This enables gradual refactoring without breaking existing code.

Changes:
- NEW: src/.../joinir/merge/rewriter/mod.rs (re-exports instruction_rewriter)
- CHANGED: merge/mod.rs - route calls through rewriter module
- STRATEGY: Keep instruction_rewriter.rs intact, split later into:
  - terminator.rs (Branch/Jump/Return remapping)
  - exit_line.rs (ExitLine/exit-phi wiring)
  - carriers.rs (loop_invariants, exit_bindings)
  - logging.rs (DEBUG-177 style verbose logs)

Acceptance:
- cargo check PASS 
- No behavior change (挙動変更なし)
- Backward compatible (instruction_rewriter.rs still exists)

Next: Extract terminator.rs (smallest, safest first split)
2025-12-21 06:03:43 +09:00
4dfe3349bf refactor(mir): phase260 p0 edge-args plumbing (strangler) + ssot api + docs 2025-12-21 04:34:22 +09:00
4496b6243d feat(joinir): Phase 259 P0 complete - Pattern8 final fixes + docs (pre-block-params migration)
Phase 259 P0: Pattern8 (BoolPredicateScan) 完全完了
is_integer/1 を Pattern8 で受理し、VM/LLVM EXE 両方で動作確認完了。
次の大工事(block-parameterized CFG への移行)前のマイルストーンとして記録。

## Key Fixes Applied

1. **skipped_entry_redirects** (instruction_rewriter.rs)
   - k_exit のスキップ時、entry block 参照を exit_block_id へリダイレクト
   - BasicBlockId not found エラーを根治

2. **loop_var_name** (pattern8_scan_bool_predicate.rs)
   - merge_entry_block 選択に使用(`Some(parts.loop_var.clone())`)
   - 未設定時の誤った entry block 選択を修正

3. **loop_invariants** (pattern8_scan_bool_predicate.rs)
   - PHI-free 不変量パラメータ(`[(me, me_host), (s, s_host)]`)
   - loop_var_name 設定時、BoundaryInjector が join_inputs Copy を全スキップするため必要
   - Pattern6 と同じ設計(header PHI で不変量を保持)

4. **expr_result** (pattern8_scan_bool_predicate.rs)
   - k_exit からの返り値を明示設定(`Some(join_exit_value)`)
   - Pattern7 style(推測ではなく明示)

5. **Smoke test scripts**
   - set +e パターンで exit code 7 をキャプチャ
   - LLVM EXE スクリプトにコメント追加(tools/build_llvm.sh 経由の明記)

## Contract Documentation

- join-explicit-cfg-construction.md に Pattern8 契約の具体例を追加
  - "pattern増でも推測増にしない" の実例として記録
  - loop_var_name / loop_invariants / expr_result / jump_args_layout の契約を明示
- 20-Decisions.md に正規化(Semantic/Plumbing)の分離方針を追記
- DOCS_LAYOUT.md に重要ドキュメントへの参照を追加

## Test Results

-  VM smoke test: `[PASS] phase259_p0_is_integer_vm` (exit 7)
-  LLVM EXE: tools/build_llvm.sh 経由で exit 7 確認
-  --verify: PASS

## Next FAIL (Phase 260+)

- Function: `Main.main/0` in `apps/examples/json_lint/main.hako`
- Error: `[cf_loop/pattern2] Failed to extract break condition from loop body`
- Pattern: Nested loop(外側 loop + 内側 loop with break)

🚀 次の大工事: block-parameterized CFG への移行を開始します。

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-21 03:21:22 +09:00
a767f0f3a9 feat(joinir): Phase 259 P0 - Pattern8 BoolPredicateScan + Copy binding fix
Pattern8 (Boolean Predicate Scan) implementation for is_integer/1:
- New pattern detection for `loop + if not predicate() { return false }`
- JoinIR lowerer with main/loop_step/k_exit structure
- Me receiver passed as param (by-name 禁止)

Key fixes:
1. expr_result = Some(join_exit_value) (Pattern7 style)
2. Tail-call: dst: None (no extra Ret instruction)
3. instruction_rewriter: Add `&& is_loop_header_with_phi` check
   - Pattern8 has no carriers → no PHIs → MUST generate Copy bindings
   - Without this, ValueId(103/104/105) were undefined

Status: Copy instructions now generated correctly, but exit block
creation issue remains (next step: Step A-C in指示書).

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-21 02:40:07 +09:00
73ddc5f58d feat(joinir): Phase 257 P1.1/P1.2/P1.3 - Pattern6 SSOT + LoopHeaderPhi CFG fix
P1.1: Pattern6 false positive fix (SSOT approach)
- can_lower() now calls extract_scan_with_init_parts() for SSOT
- index_of_string/2 no longer triggers false positive
- Graceful fall-through with Ok(None)

P1.2: LoopHeaderPhi CFG-based correction
- Step 0: Manual successor update from terminators
- CFG-based entry predecessor computation (header_preds - latch)
- Multi-entry-pred support (bb0 host + bb10 JoinIR main)
- Explicit host_entry_block addition (emit_jump runs after finalize)

P1.3: Smoke script validation
- phase254_p0_index_of_vm.sh: --verify + VM error detection
- phase257 smokes updated

Acceptance criteria (all PASS):
 phase254_p0_index_of_min.hako verify
 phase257_p0_last_index_of_min.hako verify
 ./tools/smokes/v2/run.sh --profile quick (no Pattern6 false positive)

Technical discovery:
- Host entry block (bb0) Jump set in Phase 6 (after finalize)
- instruction_rewriter bypasses set_terminator(), skips successor update

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-20 23:30:27 +09:00
edc7355937 refactor(joinir): unify boundary join_inputs SSOT (pattern4/6/7)
Apply Phase 256.8 SSOT fix to Pattern4/6/7:
- Use join_module.entry.params.clone() instead of hardcoded ValueIds
- Add fail-fast validation for params count mismatch
- Remove ValueId(0), ValueId(PARAM_MIN + k) patterns
- Clean up unused PARAM_MIN imports

This prevents entry_param_mismatch errors structurally and maintains
consistency with Pattern2/3.

Changes:
- pattern4_with_continue.rs: Lines 442-476 (SSOT extraction + validation)
- pattern6_scan_with_init.rs: Lines 447-471 (SSOT extraction + validation)
- pattern7_split_scan.rs: Lines 495-526 (SSOT extraction + validation)

All patterns now use the same SSOT principle:
1. Extract entry function (priority: join_module.entry → fallback "main")
2. Use params as SSOT: join_inputs = entry_func.params.clone()
3. Build host_inputs in expected order (pattern-specific)
4. Fail-fast validation: join_inputs.len() == host_inputs.len()

Verification:
- cargo build --release:  PASS (no PARAM_MIN warnings)
- Quick profile:  First FAIL still json_lint_vm (baseline maintained)
- Pattern6 smoke:  PASS (index_of test)
- Pattern7 smoke: Pre-existing phi pred mismatch (not introduced by SSOT)

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-20 20:05:11 +09:00
4439d64da3 refactor(joinir): make jump_args layout explicit (Phase 256) 2025-12-20 13:04:24 +09:00
1028bd419c fix(joinir): stabilize Phase 256 merge (jump_args, DCE, func names) 2025-12-20 11:01:48 +09:00
2c4268b691 wip(joinir): Phase 256 P1.10 - classify_tail_call continuation support
## 修正内容
- classify_tail_call に is_target_continuation パラメータ追加
- k_exit 呼び出しを ExitJump として分類(BackEdge に誤分類されるのを防止)
- entry_func_name の決定ロジックを修正(loop_step を正しく識別)
- Continuation param bindings の Copy 生成ロジック追加

## 残存問題
bb8/bb9 の instructions が 0 になる問題
- add_block 時は 4 instructions ある
- printer 時は instructions=0, spans=4
- 原因調査中

🔍 WIP - ChatGPT レビュー用

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-20 10:25:13 +09:00
077657b7a1 feat(joinir): Phase 256 P1.5-P1.7 contracts and naming SSOT 2025-12-20 06:38:21 +09:00
575a5d750f refactor(joinir): Phase 255 P2 - loop_invariants + var() unification + Phase 256 prep
## Task A: Loop Invariants Architecture (Option A - Boundary Extension)

Introduced explicit loop_invariants concept for variables that are:
- Used in loop body but never modified (e.g., substring needle in index_of)
- Need header PHI (all iterations use same value)
- Do NOT need exit PHI (not a LoopState)

Implementation:
- Added `loop_invariants: Vec<(String, ValueId)>` field to JoinInlineBoundary
- Added `with_loop_invariants()` method to JoinInlineBoundaryBuilder
- Modified Pattern 6 to use loop_invariants instead of ConditionOnly misuse
  * s (haystack) and ch (needle) now properly classified
  * exit_bindings simplified to only LoopState carriers
- Extended LoopHeaderPhiBuilder to generate invariant PHIs
  * Entry PHI: from host
  * Latch PHI: self-reference (same value every iteration)
- Updated instruction_rewriter to handle invariant latch incoming

Files Modified:
- src/mir/join_ir/lowering/inline_boundary.rs (structure + builder)
- src/mir/join_ir/lowering/inline_boundary_builder.rs (builder method)
- src/mir/builder/control_flow/joinir/patterns/pattern6_scan_with_init.rs
- src/mir/builder/control_flow/joinir/merge/loop_header_phi_builder.rs
- src/mir/builder/control_flow/joinir/merge/mod.rs
- src/mir/builder/control_flow/joinir/merge/instruction_rewriter.rs

## Task B: Code Quality - var() Helper Unification

Created common module to eliminate var() duplication:
- New module: src/mir/builder/control_flow/joinir/patterns/common/
- Centralized var() helper in ast_helpers.rs
- Updated Pattern 6 and Pattern 2 to use common var()
- Test code (5 occurrences) deferred to Phase 256+ per 80/20 rule

Result: Eliminated 2 duplicate var() functions, 5 test occurrences remain

Files Created:
- src/mir/builder/control_flow/joinir/patterns/common/ast_helpers.rs
- src/mir/builder/control_flow/joinir/patterns/common/mod.rs

Files Modified:
- src/mir/builder/control_flow/joinir/patterns/mod.rs
- src/mir/builder/control_flow/joinir/patterns/pattern6_scan_with_init.rs
- src/mir/builder/control_flow/joinir/patterns/policies/balanced_depth_scan_policy.rs

## Task C: Documentation - PostLoopEarlyReturnPlan Usage Examples

Enhanced post_loop_early_return_plan.rs with:
- Architecture explanation (exit PHI usage prevents DCE)
- Pattern 2 example (Less: balanced_depth_scan)
- Pattern 6 example (NotEqual: index_of)
- Builder defer decision: when 4+ patterns emerge, add builder

Files Modified:
- src/mir/builder/control_flow/joinir/patterns/policies/post_loop_early_return_plan.rs

## Task D: Phase 256 Preparation

Analyzed next failure from smoke tests:
- `StringUtils.split/2` with variable-step loop
- Not constant step (i += len or similar)
- Three implementation options identified

Created Phase 256 README with:
- Minimal reproduction code
- Root cause analysis
- Implementation options with trade-offs
- Clear next steps

Files Created:
- docs/development/current/main/phases/phase-256/README.md

## Verification Results

 All tests passing:
- pattern254_p0_index_of_vm.sh: PASS
- No regression in Pattern 1-5
- Smoke test progresses past json_lint_vm to next failure

 Architecture achievements:
- Semantic clarity: loop_invariants vs exit_bindings properly separated
- ConditionOnly misuse eliminated
- PHI generation correct for all carrier types
- Code quality: var() duplication reduced
- Next phase clearly defined

## Summary

Phase 255 P2 achieves root-cause fix for multi-param loop support:
- Boundary concept expanded (loop_invariants field)
- Pattern 6 architecture corrected (no ConditionOnly misuse)
- Code quality improved (var() centralized)
- Next pattern (variable-step) is now the challenge

 Box-first principles maintained: clean separation, explicit roles, minimal coupling

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

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2025-12-19 23:48:49 +09:00
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
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
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      |

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-19 08:23:20 +09:00
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
d5a36cf818 refactor(joinir): Phase 132-R0 - Continuation SSOT + legacy isolation
**Task 1: Continuation SSOT 一本化** 
- Add JoinInlineBoundary::default_continuations()
- Replace all BTreeSet::from([JoinFuncId::new(2)]) hardcoding (7 locations)
- Single source of truth for continuation function IDs

**Task 2: merge 契約 docs SSOT 化** 
- New: src/mir/builder/control_flow/joinir/merge/README.md
- Document continuation contracts, skip conditions, forbidden behaviors
- Prohibit by-name/by-id classification

**Task 3: テスト配置正規化** 
- New: src/mir/builder/control_flow/joinir/merge/tests/continuation_contract.rs
- Move tests from instruction_rewriter.rs to dedicated test file
- Add 4 test cases (Case A-D)

**Task 4: legacy 導線隔離** 
- New: src/mir/builder/control_flow/joinir/legacy/
- Move routing_legacy_binding.rs → legacy/routing_legacy_binding.rs
- Add legacy/README.md with removal conditions
- No cfg(feature="legacy") (docs-only isolation for now)

**Task 5: ノイズ除去** 
- Remove unused imports (ConstValue, MirInstruction)
- Clean warnings in touched files

Changes:
- src/mir/join_ir/lowering/inline_boundary.rs: +default_continuations()
- src/mir/builder/control_flow/joinir/merge/README.md: +140 lines
- src/mir/builder/control_flow/joinir/merge/tests/: +180 lines
- src/mir/builder/control_flow/joinir/legacy/: +3 files

Test results:
- cargo test --lib: 1176 PASS
- All Phase 131/132/97 smokes: PASS

Benefits:
- Continuation definition centralized (SSOT)
- Merge contracts documented and tested
- Legacy code path clearly isolated
- Code quality improved (warnings reduced)

Related: Phase 132 infrastructure improvements

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-18 21:52:21 +09:00
149e30cae5 fix(joinir): Phase 132 P1 - k_exit continuation classification fix
Problem: k_exit with TailCall(post_k) was classified as skippable continuation,
causing post_k block to become unreachable.

Root cause:
- Continuation classification was name-based ("join_func_2")
- Skippable continuation check didn't examine function body
- k_exit with tail call to post_k had its block skipped during merge

Solution:
- Check function body structure before classifying as skippable
- Non-skippable pattern: continuation with TailCall to another function
- Properly emit tail call as Jump instruction

Changes:
- src/mir/builder/control_flow/joinir/merge/mod.rs:
  - Add structural check in is_skippable_continuation()
  - Detect TailCall(other_func) pattern
  - Skip only if function is truly empty (1 block, Return only)

- src/mir/builder/control_flow/joinir/merge/instruction_rewriter.rs:
  - Improve k_exit continuation handling
  - Properly rewrite TailCall → Jump for post_k

Test results:
- Phase 132 LLVM EXE: PASS (exit code 3)
- Phase 132 VM: PASS
- Phase 131 regression: PASS
- Phase 97 regression: PASS

Related: Phase 132 loop(true) + post-loop VM/LLVM parity

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-18 21:51:52 +09:00
d6225a88d0 refactor(joinir): Task 6 & 7 - MergeConfig unification + contract_checks tests
Task 6: MergeConfig 一構造体化
- Consolidate dispersed parameters (dev_log, strict_mode, exit_reconnect_mode)
- Reduce function argument clutter in merge/mod.rs
- Single source of truth for merge configuration
- Added MergeConfig struct with factory methods (default, strict, with_debug)

Task 7: contract_checks 単体テスト追加
- Add 4 test cases for verify_all_terminator_targets_exist
- Test coverage: all_present, missing_allowed, missing_disallowed, MergeContracts creation
- Validate fail-fast behavior with freeze_with_hint
- Enable regression detection during future refactoring

Changes:
- src/mir/builder/control_flow/joinir/merge/mod.rs (+54 -6 lines)
- src/mir/builder/control_flow/joinir/merge/contract_checks.rs (+116 lines)

Test Results:
- New tests: 4 PASS
- Regression tests: 1162 PASS
- No breaking changes

Related: Phase 131 refactoring to improve code organization and maintainability

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Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2025-12-18 18:28:24 +09:00
02c4c313e5 feat(control_tree): Phase 131 P1.5-P2 DirectValue exit reconnection
Implement DirectValue mode for Normalized shadow exit handling:

**P1.5 Changes**:
- Add ExitReconnectMode::DirectValue (skip exit PHI generation)
- Carry remapped_exit_values through merge result
- Update host variable_map directly with exit values
- Fix loop(true) { x = 1; break }; return x to return 1 correctly

**P2 Changes**:
- Normalize k_exit continuation entry/exit edges
- Rewrite TailCall(k_exit) → Jump(exit_block) for proper merge
- Add verify_all_terminator_targets_exist contract check
- Extend ExitLineReconnector to handle DirectValue mode

**Infrastructure**:
- tools/build_llvm.sh: Force TMPDIR under target/ (EXDEV mitigation)
- llvm_exe_runner.sh: Add exit_code verification support
- Phase 131 smokes: Update for dev-only + exit code validation

**Contracts**:
- PHI-free: Normalized path uses continuations only
- Exit values reconnect via remapped ValueIds
- Existing patterns unaffected (既定挙動不変)

Related: Phase 131 loop(true) break-once Normalized support

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-18 17:48:05 +09:00
052040e59c refactor(joinir): extract ExitArgsCollectorBox for jump_args SSOT
Phase 118 refactoring: Box modularization for exit value collection.

# Changes
- Created `exit_args_collector.rs` with ExitArgsCollectorBox
- Extracted jump_args processing logic from instruction_rewriter.rs
- Implemented SSOT for offset calculation (0 vs 1 legacy layout)
- Added comprehensive unit tests (6 tests, all passing)

# Design
- **Responsibility**: Collects exit PHI inputs + carrier inputs from jump_args
- **SSOT**: Centralized offset calculation logic
- **Fail-Fast**: Validates jump_args length against exit_bindings
- **Phase 118 P2 Contract**: Uses boundary.exit_bindings as SSOT

# Key Features
- Filters ConditionOnly carriers (no exit PHI needed)
- Handles both direct mapping (offset=0) and legacy layout (offset=1)
- Strict mode: Fail-Fast on validation errors
- Non-strict mode: Warns and continues with best effort

# Test Results
- Unit tests: 6/6 PASS
- Phase 118 smoke tests: PASS (VM + LLVM)
- Phase 117 regression: PASS

# Reduced Code Complexity
- instruction_rewriter.rs: ~90 lines → ~25 lines (box call)
- Offset logic: Centralized in ExitArgsCollectorBox

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-18 03:56:21 +09:00
1080dee58f fix(joinir): Phase 118 Pattern3 exit carrier PHI SSOT 2025-12-18 03:43:00 +09:00
7ab459503b feat(joinir): Phase 94 - P5b escape full E2E (derived ch + +1/+2) 2025-12-17 00:59:33 +09:00
d2972c1437 feat(joinir): Phase 92完了 - ConditionalStep + body-local変数サポート
## Phase 92全体の成果

**Phase 92 P0-P2**: ConditionalStep JoinIR生成とbody-local変数サポート
- ConditionalStep(条件付きキャリア更新)のJoinIR生成実装
- Body-local変数(ch等)の条件式での参照サポート
- 変数解決優先度: ConditionEnv → LoopBodyLocalEnv

**Phase 92 P3**: BodyLocalPolicyBox + 安全ガード
- BodyLocalPolicyDecision実装(Accept/Reject判定)
- BodyLocalSlot + DualValueRewriter(JoinIR/MIR二重書き込み)
- Fail-Fast契約(Cannot promote LoopBodyLocal検出)

**Phase 92 P4**: E2E固定+回帰最小化 (本コミット)
- Unit test 3本追加(body-local変数解決検証)
- Integration smoke追加(phase92_pattern2_baseline.sh、2ケースPASS)
- P4-E2E-PLAN.md、P4-COMPLETION.md作成

## 主要な実装

### ConditionalStep(条件付きキャリア更新)
- `conditional_step_emitter.rs`: JoinIR Select命令生成
- `loop_with_break_minimal.rs`: ConditionalStep検出と統合
- `loop_with_continue_minimal.rs`: Pattern4対応

### Body-local変数サポート
- `condition_lowerer.rs`: body-local変数解決機能
  - `lower_condition_to_joinir`: body_local_env パラメータ追加
  - 変数解決優先度実装(ConditionEnv優先)
  - Unit test 3本追加: 変数解決/優先度/エラー
- `header_break_lowering.rs`: break条件でbody-local変数参照
- 7ファイルで後方互換ラッパー(lower_condition_to_joinir_no_body_locals)

### Body-local Policy & Safety
- `body_local_policy.rs`: BodyLocalPolicyDecision(Accept/Reject)
- `body_local_slot.rs`: JoinIR/MIR二重書き込み
- `dual_value_rewriter.rs`: ValueId書き換えヘルパー

## テスト体制

### Unit Tests (+3)
- `test_body_local_variable_resolution`: body-local変数解決
- `test_variable_resolution_priority`: 変数解決優先度(ConditionEnv優先)
- `test_undefined_variable_error`: 未定義変数エラー
- 全7テストPASS(cargo test --release condition_lowerer::tests)

### Integration Smoke (+1)
- `phase92_pattern2_baseline.sh`:
  - Case A: loop_min_while.hako (Pattern2 baseline)
  - Case B: phase92_conditional_step_minimal.hako (条件付きインクリメント)
  - 両ケースPASS、integration profileで発見可能

### 退行確認
-  既存Pattern2Breakテスト正常(退行なし)
-  Phase 135 smoke正常(MIR検証PASS)

## アーキテクチャ設計

### 変数解決メカニズム
```rust
// Priority 1: ConditionEnv (loop params, captured)
if let Some(value_id) = env.get(name) { return Ok(value_id); }
// Priority 2: LoopBodyLocalEnv (body-local like `ch`)
if let Some(body_env) = body_local_env {
    if let Some(value_id) = body_env.get(name) { return Ok(value_id); }
}
```

### Fail-Fast契約
- Delta equality check (conditional_step_emitter.rs)
- Variable resolution error messages (ConditionEnv)
- Body-local promotion rejection (BodyLocalPolicyDecision::Reject)

## ドキュメント

- `P4-E2E-PLAN.md`: 3レベルテスト戦略(Level 1-2完了、Level 3延期)
- `P4-COMPLETION.md`: Phase 92完了報告
- `README.md`: Phase 92全体のまとめ

## 将来の拡張(Phase 92スコープ外)

- Body-local promotionシステム拡張
- P5bパターン認識の汎化(flagベース条件サポート)
- 完全なP5b E2Eテスト(body-local promotion実装後)

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-16 21:37:07 +09:00
e404746612 refactor(mir): Phase 139-P3-B - RoutingDecision を enum 対応 + レガシー削除
- RoutingDecision の missing_caps を Vec<CapabilityTag> に変更(型安全化)
- error_tags は to_tag() メソッドで自動生成
- 全 callsite を enum variant に修正
- capability_tags モジュール(文字列定数群)を完全削除
- 全テスト PASS(型安全性向上を確認)
- フォーマット適用
2025-12-16 07:02:14 +09:00
990d00393e refactor(mir): Remove CompilationContext legacy fields (Phase 2-7/7) 🎉
Phase 2 完全完了!全 7 Context のレガシーフィールドを完全削除。

## Changes
- Migrated all access sites to comp_ctx.* (15 fields)
- Removed 15 deprecated fields:
  * compilation_context
  * current_static_box
  * user_defined_boxes
  * reserved_value_ids
  * fn_body_ast
  * weak_fields_by_box
  * property_getters_by_box
  * field_origin_class
  * field_origin_by_box
  * static_method_index
  * method_tail_index
  * method_tail_index_source_len
  * type_registry
  * current_slot_registry
  * plugin_method_sigs
- Removed initialization code (15 field inits)

## Phase 2 完了!🎉
- builder.rs: 1222 → 1127 lines (-95 lines net)
- Deprecation warnings: 86 → 0 (完全排除)
- 全 36 deprecated fields 削除完了
- 全 14 sync helpers 削除完了
- 7 Context 完全SSOT化

## Tests
- cargo build --release: SUCCESS
- cargo test --release --lib: 1033/1033 PASS 
- Deprecation warnings: 0 

Phase 2 Progress: 7/7 contexts complete (100%) 
-  MetadataContext
-  CoreContext
-  TypeContext
-  ScopeContext
-  BindingContext
-  VariableContext
-  CompilationContext (this commit) 🎉

Phase 136 Context Box化: 完全完了!

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-16 04:07:17 +09:00
9170f0a85d refactor(mir): Remove VariableContext legacy fields (Phase 2-6/7)
完全移行→削除の安全順序(Option C)に従い、VariableContext の
deprecated フィールドと sync helpers を完全削除。

## Changes
- Migrated all 66+ access sites to variable_ctx.variable_map
- Removed 1 deprecated field (variable_map) from MirBuilder
- Removed 2 sync helpers (sync_variable_ctx_to_legacy, sync_legacy_to_variable_ctx)
- Fixed BoxCompilationContext.variable_map references (kept as-is, different scope)
- Fixed ExitBindingBuilder.variable_map references (kept as-is, local field)
- Updated observer.rs to use variable_map() accessor method

## JoinIR Integration Verified
- CarrierInfo::from_variable_map() works correctly
- ExitLine contract maintained (Phase 132-135)
- NYASH_TRACE_VARMAP debug support preserved
- Pattern 1-5 lowering all functional

## Tests
- cargo test --release --lib: 1033 passed, 0 failed
- phase135_trim_mir_verify.sh: PASS (MIR SSA/ValueId OK)
- cargo build --release: SUCCESS
- Deprecation warnings: reduced (86 remaining, from other contexts)

## Statistics
- 27 files changed
- 146 insertions(+), 174 deletions(-)
- Net: -28 lines

Phase 2 Progress: 6/7 contexts complete (86%)
-  MetadataContext
-  CoreContext
-  TypeContext
-  ScopeContext
-  BindingContext
-  VariableContext (this commit)
-  CompilationContext (Phase 2-7 next)

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-16 03:48:44 +09:00