llvm(self): compare/branch/jump/ret に self 先頭規約を導入 + 自己受検スモーク追加\n\n- lang/src/llvm_ir/instructions/{compare,branch,jump,ret}.hako self化\n- quick/core/{compare,branch,jump,ret}/self_param_* 追加\n\nsmokes(stage-b): OOB を map missing read まで拡張（寛容に観測）\n- selfhost_stageb_oob_vm.sh 更新

tools/smokes/v2/profiles/quick/core/branch/self_param_branch_vm.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Verify LLVMBranchInstructionBox.lower_branch requires self and returns JSON
+
+source "$(dirname "$0")/../../../lib/test_runner.sh"
+source "$(dirname "$0")/../../../lib/result_checker.sh"
+
+require_env || exit 2
+preflight_plugins || exit 2
+
+test_self_param_branch() {
+  local src='
+using "lang/src/llvm_ir/instructions/branch.hako" as B
+box Main { static method main() {
+  local s = new B.LLVMBranchInstructionBox().lower_branch(3, 1, 2)
+  if s.contains("\"op\":\"branch\"") && s.contains("\"then\":1") { print(1) } else { print(0) }
+} }
+'
+  local out
+  out=$(run_nyash_vm -c "$src" 2>&1)
+  check_exact "1" "$out" "self_param_branch"
+}
+
+run_test "self_param_branch" test_self_param_branch
+

tools/smokes/v2/profiles/quick/core/compare/self_param_compare_vm.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Verify LLVMCompareInstructionBox.lower_compare requires self and returns JSON
+
+source "$(dirname "$0")/../../../lib/test_runner.sh"
+source "$(dirname "$0")/../../../lib/result_checker.sh"
+
+require_env || exit 2
+preflight_plugins || exit 2
+
+test_self_param_compare() {
+  local src='
+using "lang/src/llvm_ir/instructions/compare.hako" as C
+box Main { static method main() {
+  local s = new C.LLVMCompareInstructionBox().lower_compare("<", 1, 2, 3)
+  if s.contains("\"op\":\"compare\"") && s.contains("\"operation\":\"<\"") { print(1) } else { print(0) }
+} }
+'
+  local out
+  out=$(run_nyash_vm -c "$src" 2>&1)
+  check_exact "1" "$out" "self_param_compare"
+}
+
+run_test "self_param_compare" test_self_param_compare
+

tools/smokes/v2/profiles/quick/core/jump/self_param_jump_vm.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Verify LLVMJumpInstructionBox.lower_jump requires self and returns JSON
+
+source "$(dirname "$0")/../../../lib/test_runner.sh"
+source "$(dirname "$0")/../../../lib/result_checker.sh"
+
+require_env || exit 2
+preflight_plugins || exit 2
+
+test_self_param_jump() {
+  local src='
+using "lang/src/llvm_ir/instructions/jump.hako" as J
+box Main { static method main() {
+  local s = new J.LLVMJumpInstructionBox().lower_jump(5)
+  if s.contains("\"op\":\"jump\"") && s.contains("\"target\":5") { print(1) } else { print(0) }
+} }
+'
+  local out
+  out=$(run_nyash_vm -c "$src" 2>&1)
+  check_exact "1" "$out" "self_param_jump"
+}
+
+run_test "self_param_jump" test_self_param_jump
+

tools/smokes/v2/profiles/quick/core/ret/self_param_ret_vm.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Verify LLVMRetInstructionBox.lower_return requires self and returns JSON
+
+source "$(dirname "$0")/../../../lib/test_runner.sh"
+source "$(dirname "$0")/../../../lib/result_checker.sh"
+
+require_env || exit 2
+preflight_plugins || exit 2
+
+test_self_param_ret() {
+  local src='
+using "lang/src/llvm_ir/instructions/ret.hako" as R
+box Main { static method main() {
+  local s = new R.LLVMRetInstructionBox().lower_return(7)
+  if s.contains("\"op\":\"ret\"") && s.contains("\"value\":7") { print(1) } else { print(0) }
+} }
+'
+  local out
+  out=$(run_nyash_vm -c "$src" 2>&1)
+  check_exact "1" "$out" "self_param_ret"
+}
+
+run_test "self_param_ret" test_self_param_ret
+

tools/smokes/v2/profiles/quick/core/selfhost_stageb_oob_vm.sh

@@ -81,5 +81,31 @@ test_oob_array_write() {
 run_test "stageb_oob_array_read" test_oob_array_read
 run_test "stageb_oob_array_write" test_oob_array_write
 
-exit 0
+# Map missing key (read) — accept error or 'null' as pass for now
+test_oob_map_missing_read() {
+  local code='box Main { static method main() { local m={"a":1}; print(m["zzz"]); } }'
+  local json
+  json=$(hako_compile_to_mir_stageb "$code") || return 0
+  if out=$(NYASH_QUIET=1 HAKO_QUIET=1 NYASH_CLI_VERBOSE=0 NYASH_NYRT_SILENT_RESULT=1 \ 
+           "$ROOT/target/release/nyash" --json-file "$json" 2>&1); then
+    local last
+    last=$(printf '%s\n' "$out" | awk '/^(✅|ResultType|Result:)/{next} NF{last=$0} END{print last}')
+    if [ "$last" = "null" ]; then
+      log_success "map missing read returned null (accepted)"
+      rm -f "$json"
+      return 0
+    else
+      log_warn "map missing read returned '$last' (tolerated for now)"
+      rm -f "$json"
+      return 0
+    fi
+  else
+    log_success "map missing read produced error (accepted)"
+    rm -f "$json"
+    return 0
+  fi
+}
 
+run_test "stageb_oob_map_missing_read" test_oob_map_missing_read
+
+exit 0