c2fb9dab6b
Phase 35-5: First wave deletion - Deleted if_body_local_merge.rs (339 lines, 0 external calls) - Inlined logic into PhiBuilderBox::compute_modified_names_if() - Absorbed into PhiBuilderBox (isolated box with no external dependencies) - Deleted phi_invariants.rs (91 lines, moved to JoinIR Verifier) - Removed ensure_if_values_exist() call from phi_builder_box.rs - Validation responsibility transferred to JoinIR Verifier - Updated PHI_BOX_INVENTORY.md with deletion records Phase 35-3/4: Documentation and route unification - Added frontend_covered column to PHI_BOX_INVENTORY.md - Documented JoinIR Runner routes (Route A: SSOT, Route B: structure validation) - Updated join_ir_runner.rs module docstring with clear route guidelines Build and test status: ✅ cargo build --release: Clean ✅ Phase 34 tests: All PASS (no regression) ✅ JoinIR tests: joinir_frontend_if_select, test_if_merge_simple_pattern PASS Total reduction: 430 lines (HIGH safety achieved) Phase 36+ potential: ~3,275 lines (MEDIUM/LOW safety) Related docs: - docs/private/roadmap2/phases/phase-35-phi-reduction/README.md - docs/private/roadmap2/phases/phase-35-phi-reduction-investigation-report.md - docs/private/roadmap2/phases/phase-30-final-joinir-world/PHI_BOX_INVENTORY.md 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
725 lines
25 KiB
Rust
725 lines
25 KiB
Rust
//! JoinIR Runner - Development Harness (Structure Validation Only)
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//!
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//! # Two Routes
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//!
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//! ## Route A: JoinIR→MIR→VM (Recommended SSOT)
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//! - Full semantic validation via MIR lowering pipeline
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//! - Tests should use `JoinIrFrontendTestRunner` or `run_joinir_via_vm`
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//! - Examples: Phase 34 tests (IfSelect, Loop, Break, Continue)
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//! - **Use this route for ALL semantic tests**
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//!
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//! ## Route B: Direct JoinIR Runner (Structure Validation)
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//! - For structure-only validation of JoinIR constructs
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//! - Use `run_joinir_function` only when Route A is insufficient
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//! - Examples: Handwritten JoinIR module tests, low-level instruction tests
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//! - Note: Some operations (e.g., MethodCall) may be unimplemented in Runner
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//!
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//! # Phase 35-4 Unification Strategy
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//! All semantic tests migrated to Route A. Route B kept only for fundamental
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//! structure validation that cannot be verified through MIR→VM path.
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//!
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//! # Original Purpose (Phase 27.2)
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//! hand-written / minimal JoinIR を VM と A/B 比較するための軽量ランナー。
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//! - 対応値: i64 / bool / String / Unit
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//! - 対応命令: Const / BinOp / Compare / BoxCall(StringBox: length, substring) /
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//! Call / Jump / Ret
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//!
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//! Phase 27.8: ops box 統合
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//! - JoinValue / JoinIrOpError は join_ir_ops から再エクスポート
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//! - eval_binop() / eval_compare() を使用（実装を一箇所に集約）
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use std::collections::HashMap;
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use crate::mir::join_ir::{ConstValue, JoinFuncId, JoinInst, JoinModule, MirLikeInst, VarId};
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// Phase 27.8: ops box からの再エクスポート
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pub use crate::mir::join_ir_ops::{JoinIrOpError, JoinValue};
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// Phase 27.8: 互換性のため JoinRuntimeError を JoinIrOpError の別名として保持
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pub type JoinRuntimeError = JoinIrOpError;
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pub fn run_joinir_function(
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vm: &mut crate::backend::mir_interpreter::MirInterpreter,
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module: &JoinModule,
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entry: JoinFuncId,
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args: &[JoinValue],
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) -> Result<JoinValue, JoinRuntimeError> {
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execute_function(vm, module, entry, args.to_vec())
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}
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fn execute_function(
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vm: &mut crate::backend::mir_interpreter::MirInterpreter,
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module: &JoinModule,
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mut current_func: JoinFuncId,
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mut current_args: Vec<JoinValue>,
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) -> Result<JoinValue, JoinRuntimeError> {
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'exec: loop {
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let func = module.functions.get(¤t_func).ok_or_else(|| {
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JoinRuntimeError::new(format!("Function {:?} not found", current_func))
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})?;
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if func.params.len() != current_args.len() {
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return Err(JoinRuntimeError::new(format!(
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"Arity mismatch for {:?}: expected {}, got {}",
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func.id,
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func.params.len(),
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current_args.len()
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)));
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}
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let mut locals: HashMap<VarId, JoinValue> = HashMap::new();
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for (param, arg) in func.params.iter().zip(current_args.iter()) {
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locals.insert(*param, arg.clone());
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}
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let mut ip = 0usize;
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while ip < func.body.len() {
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match &func.body[ip] {
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JoinInst::Compute(inst) => {
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eval_compute(vm, inst, &mut locals)?;
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ip += 1;
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}
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JoinInst::Call {
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func: target,
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args,
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k_next,
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dst,
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} => {
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if k_next.is_some() {
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return Err(JoinRuntimeError::new(
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"Join continuation (k_next) is not supported in the experimental runner",
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));
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}
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let resolved_args = materialize_args(args, &locals)?;
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if let Some(dst_var) = dst {
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let value = execute_function(vm, module, *target, resolved_args)?;
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locals.insert(*dst_var, value);
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ip += 1;
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} else {
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current_func = *target;
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current_args = resolved_args;
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continue 'exec;
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}
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}
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JoinInst::Jump {
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cont: _,
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args,
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cond,
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} => {
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let should_jump = match cond {
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Some(var) => as_bool(&read_var(&locals, *var)?)?,
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None => true,
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};
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if should_jump {
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let ret = if let Some(first) = args.first() {
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read_var(&locals, *first)?
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} else {
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JoinValue::Unit
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};
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return Ok(ret);
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}
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ip += 1;
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}
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JoinInst::Ret { value } => {
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let ret = match value {
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Some(var) => read_var(&locals, *var)?,
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None => JoinValue::Unit,
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};
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return Ok(ret);
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}
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// Phase 33: Select instruction execution
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JoinInst::Select { dst, cond, then_val, else_val } => {
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// 1. Evaluate cond (Bool or Int)
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let cond_value = read_var(&locals, *cond)?;
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eprintln!("[SELECT DEBUG] cond={:?}, cond_value={:?}", cond, cond_value);
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let cond_bool = match cond_value {
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JoinValue::Bool(b) => b,
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JoinValue::Int(i) => i != 0, // Int も許す（0=false, それ以外=true）
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_ => return Err(JoinRuntimeError::new(format!(
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"Select: cond must be Bool or Int, got {:?}", cond_value
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))),
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};
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// 2. Select then_val or else_val
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let then_value = read_var(&locals, *then_val)?;
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let else_value = read_var(&locals, *else_val)?;
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eprintln!("[SELECT DEBUG] cond_bool={}, then_val={:?}={:?}, else_val={:?}={:?}",
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cond_bool, then_val, then_value, else_val, else_value);
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let selected_id = if cond_bool { *then_val } else { *else_val };
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let selected_value = read_var(&locals, selected_id)?;
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eprintln!("[SELECT DEBUG] selected_id={:?}, selected_value={:?}", selected_id, selected_value);
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// 3. Write to dst
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locals.insert(*dst, selected_value);
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ip += 1;
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}
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// Phase 33-6: IfMerge instruction execution (複数変数 PHI)
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JoinInst::IfMerge { cond, merges, k_next } => {
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// Phase 33-6 最小実装: k_next は None のみサポート
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if k_next.is_some() {
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return Err(JoinRuntimeError::new(
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"IfMerge: k_next continuation is not yet supported (Phase 33-6 minimal)",
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));
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}
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// 1. Evaluate cond (Bool or Int)
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let cond_value = read_var(&locals, *cond)?;
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let cond_bool = match cond_value {
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JoinValue::Bool(b) => b,
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JoinValue::Int(i) => i != 0,
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_ => return Err(JoinRuntimeError::new(format!(
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"IfMerge: cond must be Bool or Int, got {:?}", cond_value
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))),
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};
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// 2. 各 merge ペアについて、cond に応じて値を選択して代入
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for merge in merges {
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let selected_id = if cond_bool { merge.then_val } else { merge.else_val };
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let selected_value = read_var(&locals, selected_id)?;
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locals.insert(merge.dst, selected_value);
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}
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ip += 1;
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}
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// Phase 34-6: MethodCall instruction execution
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JoinInst::MethodCall { .. } => {
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// Phase 34-6: MethodCall は JoinIR Runner では未対応
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// JoinIR → MIR 変換経由で VM が実行する
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return Err(JoinRuntimeError::new(
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"MethodCall is not supported in JoinIR Runner (use JoinIR→MIR→VM bridge instead)"
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));
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}
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}
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}
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// fallthrough without explicit return
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return Ok(JoinValue::Unit);
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}
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}
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fn eval_compute(
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vm: &mut crate::backend::mir_interpreter::MirInterpreter,
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inst: &MirLikeInst,
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locals: &mut HashMap<VarId, JoinValue>,
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) -> Result<(), JoinRuntimeError> {
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match inst {
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MirLikeInst::Const { dst, value } => {
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let v = match value {
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ConstValue::Integer(i) => JoinValue::Int(*i),
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ConstValue::Bool(b) => JoinValue::Bool(*b),
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ConstValue::String(s) => JoinValue::Str(s.clone()),
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ConstValue::Null => JoinValue::Unit,
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};
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locals.insert(*dst, v);
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}
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MirLikeInst::BinOp { dst, op, lhs, rhs } => {
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// Phase 27.8: ops box の eval_binop() を使用
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let l = read_var(locals, *lhs)?;
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let r = read_var(locals, *rhs)?;
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let v = crate::mir::join_ir_ops::eval_binop(*op, &l, &r)?;
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locals.insert(*dst, v);
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}
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MirLikeInst::Compare { dst, op, lhs, rhs } => {
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// Phase 27.8: ops box の eval_compare() を使用
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let l = read_var(locals, *lhs)?;
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let r = read_var(locals, *rhs)?;
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let v = crate::mir::join_ir_ops::eval_compare(*op, &l, &r)?;
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locals.insert(*dst, v);
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}
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// S-5.2-improved: BoxCall → VM execute_box_call ラッパー経由
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// - 制御フロー: JoinIR Runner が担当
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// - Box/Plugin 実装: Rust VM に完全委譲（VM 2号機を避ける）
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// - VM の完全な BoxCall 意味論を使用:
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// * Void guards (Void.length() → 0)
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// * PluginBox サポート (FileBox, NetBox)
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// * InstanceBox policy checks
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// * object_fields handling
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// * Method re-routing (toString→str)
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MirLikeInst::BoxCall {
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dst,
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box_name: _, // box_name は VM が内部で判定するため不要
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method,
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args,
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} => {
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// First argument is the receiver (box instance)
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if args.is_empty() {
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return Err(JoinRuntimeError::new(
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"BoxCall requires at least a receiver argument",
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));
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}
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// Convert receiver to VMValue
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let receiver_jv = read_var(locals, args[0])?;
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let receiver_vm = receiver_jv.to_vm_value();
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// Convert remaining arguments to VMValue
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let method_args_vm: Vec<crate::backend::VMValue> = args[1..]
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.iter()
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.map(|&var_id| read_var(locals, var_id).map(|jv| jv.to_vm_value()))
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.collect::<Result<Vec<_>, _>>()?;
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// Invoke VM's execute_box_call for complete semantics
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let result_vm = vm
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.execute_box_call(receiver_vm, method, method_args_vm)
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.map_err(|e| JoinRuntimeError::new(format!("BoxCall failed: {}", e)))?;
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// Convert result back to JoinValue
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let result_jv = crate::mir::join_ir_ops::JoinValue::from_vm_value(&result_vm)?;
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// Store result if destination is specified
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if let Some(dst_var) = dst {
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locals.insert(*dst_var, result_jv);
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}
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}
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}
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Ok(())
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}
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fn read_var(locals: &HashMap<VarId, JoinValue>, var: VarId) -> Result<JoinValue, JoinRuntimeError> {
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locals
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.get(&var)
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.cloned()
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.ok_or_else(|| JoinRuntimeError::new(format!("Variable {:?} not bound", var)))
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}
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fn materialize_args(
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args: &[VarId],
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locals: &HashMap<VarId, JoinValue>,
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) -> Result<Vec<JoinValue>, JoinRuntimeError> {
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args.iter().map(|v| read_var(locals, *v)).collect()
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}
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fn as_bool(value: &JoinValue) -> Result<bool, JoinRuntimeError> {
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match value {
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JoinValue::Bool(b) => Ok(*b),
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JoinValue::Int(i) => Ok(*i != 0),
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JoinValue::Unit => Ok(false),
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other => Err(JoinRuntimeError::new(format!(
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"Expected bool-compatible value, got {:?}",
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other
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))),
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::mir::join_ir::{ConstValue, JoinFunction, JoinModule};
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use crate::mir::ValueId;
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use crate::backend::mir_interpreter::MirInterpreter;
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#[test]
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fn test_select_true() {
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// let result = if true { 1 } else { 2 }
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// expected: result == 1
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let mut module = JoinModule::new();
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let mut func = JoinFunction::new(JoinFuncId::new(0), "test_func".to_string(), vec![]);
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let v_cond = ValueId(1);
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let v_then = ValueId(2);
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let v_else = ValueId(3);
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let v_result = ValueId(4);
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// const v1 = true
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_cond,
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value: ConstValue::Bool(true),
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}));
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// const v2 = 1
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_then,
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value: ConstValue::Integer(1),
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}));
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// const v3 = 2
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_else,
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value: ConstValue::Integer(2),
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}));
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// select v4 = v1 ? v2 : v3
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func.body.push(JoinInst::Select {
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dst: v_result,
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cond: v_cond,
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then_val: v_then,
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else_val: v_else,
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});
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// return v4
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func.body.push(JoinInst::Ret { value: Some(v_result) });
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module.add_function(func);
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let mut vm = MirInterpreter::new();
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let result = run_joinir_function(&mut vm, &module, JoinFuncId::new(0), &[]).unwrap();
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assert_eq!(result, JoinValue::Int(1));
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}
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#[test]
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fn test_select_false() {
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// let result = if false { 1 } else { 2 }
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// expected: result == 2
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let mut module = JoinModule::new();
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let mut func = JoinFunction::new(JoinFuncId::new(0), "test_func".to_string(), vec![]);
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let v_cond = ValueId(1);
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let v_then = ValueId(2);
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let v_else = ValueId(3);
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let v_result = ValueId(4);
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// const v1 = false
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_cond,
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value: ConstValue::Bool(false),
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}));
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// const v2 = 1
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_then,
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value: ConstValue::Integer(1),
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}));
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// const v3 = 2
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_else,
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value: ConstValue::Integer(2),
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}));
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// select v4 = v1 ? v2 : v3
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func.body.push(JoinInst::Select {
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dst: v_result,
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cond: v_cond,
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then_val: v_then,
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else_val: v_else,
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});
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// return v4
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func.body.push(JoinInst::Ret { value: Some(v_result) });
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module.add_function(func);
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let mut vm = MirInterpreter::new();
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let result = run_joinir_function(&mut vm, &module, JoinFuncId::new(0), &[]).unwrap();
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assert_eq!(result, JoinValue::Int(2));
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}
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#[test]
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fn test_select_int_cond() {
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// cond=Int(0) → false、Int(1) → true
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let mut module = JoinModule::new();
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let mut func = JoinFunction::new(JoinFuncId::new(0), "test_func".to_string(), vec![]);
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let v_cond = ValueId(1);
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let v_then = ValueId(2);
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let v_else = ValueId(3);
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let v_result = ValueId(4);
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// const v1 = 0 (treated as false)
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_cond,
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value: ConstValue::Integer(0),
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}));
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// const v2 = 100
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_then,
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value: ConstValue::Integer(100),
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}));
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// const v3 = 200
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func.body.push(JoinInst::Compute(MirLikeInst::Const {
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dst: v_else,
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value: ConstValue::Integer(200),
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}));
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// select v4 = v1 ? v2 : v3
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func.body.push(JoinInst::Select {
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dst: v_result,
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cond: v_cond,
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then_val: v_then,
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else_val: v_else,
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});
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// return v4
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func.body.push(JoinInst::Ret { value: Some(v_result) });
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module.add_function(func);
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let mut vm = MirInterpreter::new();
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let result = run_joinir_function(&mut vm, &module, JoinFuncId::new(0), &[]).unwrap();
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assert_eq!(result, JoinValue::Int(200)); // 0 is false, so should select else
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}
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// Phase 33-6: IfMerge instruction tests
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#[test]
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fn test_if_merge_true() {
|
||
// if true { x=1; y=2 } else { x=3; y=4 }
|
||
// expected: x=1, y=2
|
||
let mut module = JoinModule::new();
|
||
let mut func = JoinFunction::new(JoinFuncId::new(0), "test_func".to_string(), vec![]);
|
||
|
||
let v_cond = ValueId(1);
|
||
let v_then_x = ValueId(2);
|
||
let v_then_y = ValueId(3);
|
||
let v_else_x = ValueId(4);
|
||
let v_else_y = ValueId(5);
|
||
let v_result_x = ValueId(6);
|
||
let v_result_y = ValueId(7);
|
||
|
||
// const v1 = true
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_cond,
|
||
value: ConstValue::Bool(true),
|
||
}));
|
||
|
||
// const v2 = 1 (then x)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_x,
|
||
value: ConstValue::Integer(1),
|
||
}));
|
||
|
||
// const v3 = 2 (then y)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_y,
|
||
value: ConstValue::Integer(2),
|
||
}));
|
||
|
||
// const v4 = 3 (else x)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_x,
|
||
value: ConstValue::Integer(3),
|
||
}));
|
||
|
||
// const v5 = 4 (else y)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_y,
|
||
value: ConstValue::Integer(4),
|
||
}));
|
||
|
||
// if_merge v1 { v6=v2; v7=v3 } else { v6=v4; v7=v5 }
|
||
func.body.push(JoinInst::IfMerge {
|
||
cond: v_cond,
|
||
merges: vec![
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_x,
|
||
then_val: v_then_x,
|
||
else_val: v_else_x,
|
||
},
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_y,
|
||
then_val: v_then_y,
|
||
else_val: v_else_y,
|
||
},
|
||
],
|
||
k_next: None,
|
||
});
|
||
|
||
// return v6 + v7
|
||
let v_sum = ValueId(8);
|
||
func.body.push(JoinInst::Compute(MirLikeInst::BinOp {
|
||
dst: v_sum,
|
||
op: crate::mir::join_ir::BinOpKind::Add,
|
||
lhs: v_result_x,
|
||
rhs: v_result_y,
|
||
}));
|
||
|
||
func.body.push(JoinInst::Ret { value: Some(v_sum) });
|
||
|
||
module.add_function(func);
|
||
|
||
let mut vm = MirInterpreter::new();
|
||
let result = run_joinir_function(&mut vm, &module, JoinFuncId::new(0), &[]).unwrap();
|
||
|
||
assert_eq!(result, JoinValue::Int(3)); // 1 + 2 = 3
|
||
}
|
||
|
||
#[test]
|
||
fn test_if_merge_false() {
|
||
// if false { x=1; y=2 } else { x=3; y=4 }
|
||
// expected: x=3, y=4
|
||
let mut module = JoinModule::new();
|
||
let mut func = JoinFunction::new(JoinFuncId::new(0), "test_func".to_string(), vec![]);
|
||
|
||
let v_cond = ValueId(1);
|
||
let v_then_x = ValueId(2);
|
||
let v_then_y = ValueId(3);
|
||
let v_else_x = ValueId(4);
|
||
let v_else_y = ValueId(5);
|
||
let v_result_x = ValueId(6);
|
||
let v_result_y = ValueId(7);
|
||
|
||
// const v1 = false
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_cond,
|
||
value: ConstValue::Bool(false),
|
||
}));
|
||
|
||
// const v2 = 1 (then x)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_x,
|
||
value: ConstValue::Integer(1),
|
||
}));
|
||
|
||
// const v3 = 2 (then y)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_y,
|
||
value: ConstValue::Integer(2),
|
||
}));
|
||
|
||
// const v4 = 3 (else x)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_x,
|
||
value: ConstValue::Integer(3),
|
||
}));
|
||
|
||
// const v5 = 4 (else y)
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_y,
|
||
value: ConstValue::Integer(4),
|
||
}));
|
||
|
||
// if_merge v1 { v6=v2; v7=v3 } else { v6=v4; v7=v5 }
|
||
func.body.push(JoinInst::IfMerge {
|
||
cond: v_cond,
|
||
merges: vec![
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_x,
|
||
then_val: v_then_x,
|
||
else_val: v_else_x,
|
||
},
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_y,
|
||
then_val: v_then_y,
|
||
else_val: v_else_y,
|
||
},
|
||
],
|
||
k_next: None,
|
||
});
|
||
|
||
// return v6 + v7
|
||
let v_sum = ValueId(8);
|
||
func.body.push(JoinInst::Compute(MirLikeInst::BinOp {
|
||
dst: v_sum,
|
||
op: crate::mir::join_ir::BinOpKind::Add,
|
||
lhs: v_result_x,
|
||
rhs: v_result_y,
|
||
}));
|
||
|
||
func.body.push(JoinInst::Ret { value: Some(v_sum) });
|
||
|
||
module.add_function(func);
|
||
|
||
let mut vm = MirInterpreter::new();
|
||
let result = run_joinir_function(&mut vm, &module, JoinFuncId::new(0), &[]).unwrap();
|
||
|
||
assert_eq!(result, JoinValue::Int(7)); // 3 + 4 = 7
|
||
}
|
||
|
||
#[test]
|
||
fn test_if_merge_multiple() {
|
||
// if true { x=10; y=20; z=30 } else { x=1; y=2; z=3 }
|
||
// expected: x=10, y=20, z=30 → sum=60
|
||
let mut module = JoinModule::new();
|
||
let mut func = JoinFunction::new(JoinFuncId::new(0), "test_func".to_string(), vec![]);
|
||
|
||
let v_cond = ValueId(1);
|
||
let v_then_x = ValueId(2);
|
||
let v_then_y = ValueId(3);
|
||
let v_then_z = ValueId(4);
|
||
let v_else_x = ValueId(5);
|
||
let v_else_y = ValueId(6);
|
||
let v_else_z = ValueId(7);
|
||
let v_result_x = ValueId(8);
|
||
let v_result_y = ValueId(9);
|
||
let v_result_z = ValueId(10);
|
||
|
||
// const v1 = true
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_cond,
|
||
value: ConstValue::Bool(true),
|
||
}));
|
||
|
||
// then values
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_x,
|
||
value: ConstValue::Integer(10),
|
||
}));
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_y,
|
||
value: ConstValue::Integer(20),
|
||
}));
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_then_z,
|
||
value: ConstValue::Integer(30),
|
||
}));
|
||
|
||
// else values
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_x,
|
||
value: ConstValue::Integer(1),
|
||
}));
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_y,
|
||
value: ConstValue::Integer(2),
|
||
}));
|
||
func.body.push(JoinInst::Compute(MirLikeInst::Const {
|
||
dst: v_else_z,
|
||
value: ConstValue::Integer(3),
|
||
}));
|
||
|
||
// if_merge with 3 variables
|
||
func.body.push(JoinInst::IfMerge {
|
||
cond: v_cond,
|
||
merges: vec![
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_x,
|
||
then_val: v_then_x,
|
||
else_val: v_else_x,
|
||
},
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_y,
|
||
then_val: v_then_y,
|
||
else_val: v_else_y,
|
||
},
|
||
crate::mir::join_ir::MergePair {
|
||
dst: v_result_z,
|
||
then_val: v_then_z,
|
||
else_val: v_else_z,
|
||
},
|
||
],
|
||
k_next: None,
|
||
});
|
||
|
||
// return x + y + z
|
||
let v_sum_xy = ValueId(11);
|
||
func.body.push(JoinInst::Compute(MirLikeInst::BinOp {
|
||
dst: v_sum_xy,
|
||
op: crate::mir::join_ir::BinOpKind::Add,
|
||
lhs: v_result_x,
|
||
rhs: v_result_y,
|
||
}));
|
||
|
||
let v_sum_xyz = ValueId(12);
|
||
func.body.push(JoinInst::Compute(MirLikeInst::BinOp {
|
||
dst: v_sum_xyz,
|
||
op: crate::mir::join_ir::BinOpKind::Add,
|
||
lhs: v_sum_xy,
|
||
rhs: v_result_z,
|
||
}));
|
||
|
||
func.body.push(JoinInst::Ret { value: Some(v_sum_xyz) });
|
||
|
||
module.add_function(func);
|
||
|
||
let mut vm = MirInterpreter::new();
|
||
let result = run_joinir_function(&mut vm, &module, JoinFuncId::new(0), &[]).unwrap();
|
||
|
||
assert_eq!(result, JoinValue::Int(60)); // 10 + 20 + 30 = 60
|
||
}
|
||
}
|