{"id":24079,"date":"2025-11-17T18:19:38","date_gmt":"2025-11-17T18:19:38","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=24079"},"modified":"2025-11-17T18:19:38","modified_gmt":"2025-11-17T18:19:38","slug":"ruby-%e3%81%8c-jit-%e3%82%b3%e3%83%bc%e3%83%89%e3%82%92%e5%ae%9f%e8%a1%8c%e3%81%99%e3%82%8b%e3%83%a1%e3%82%ab%e3%83%8b%e3%82%ba%e3%83%a0%e3%82%92%e8%aa%ad%e3%81%bf%e8%a7%a3%e3%81%8f%ef%bc%88%e7%bf%bb","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/24079\/","title":{"rendered":"Ruby \u304c JIT \u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u8aad\u307f\u89e3\u304f\uff08\u7ffb\u8a33\uff09\uff5cTechRacho by BPS\u682a\u5f0f\u4f1a\u793e"},"content":{"rendered":"\n<\/p>\n
\n

Ruby\u304cJIT\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u8aad\u307f\u89e3\u304f\uff08\u7ffb\u8a33\uff09<\/h2>\n

YJIT<\/a>\u304c\u5c0e\u5165\u3055\u308c\u3066\u4ee5\u6765\u3001\u79c1\u306fRuby\u306eJIT\u306b\u3064\u3044\u3066\u89aa\u8fd1\u611f\u3068\u6c17\u5f8c\u308c\u3092\u540c\u6642\u306b\u611f\u3058\u3066\u3044\u307e\u3057\u305f\u3002\u81ea\u5206\u306eRuby\u30d7\u30ed\u30b0\u30e9\u30e0\u3067JIT\u3092\u6709\u52b9\u306b\u3059\u308b\u65b9\u6cd5\u3082\u3001Ruby\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4e00\u90e8\u3092\u6a5f\u68b0\u8a9e\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3053\u3068\u3067\u9ad8\u901f\u5316\u3067\u304d\u308b\u3053\u3068\u3082\u308f\u304b\u3063\u3066\u3044\u307e\u3059\u304c\u3001YJIT\u3084Ruby\u306eJIT\u30b3\u30f3\u30d1\u30a4\u30e9\u5168\u822c\u306b\u3064\u3044\u3066\u306e\u79c1\u306e\u7406\u89e3\u306f\u305d\u3053\u6b62\u307e\u308a\u3060\u3063\u305f\u3088\u3046\u3067\u3059\u3002<\/p>\n

\u6570\u304b\u6708\u524d\u306b\u540c\u50da\u306eMax Bernstein<\/a>\u304c\u3001Ruby\u306bZJIT\u304c\u30de\u30fc\u30b8\u3055\u308c\u305f\u3068\u3044\u3046\u8a18\u4e8b<\/a>\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001ZJIT\u304cRuby\u306e\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092HIR<\/strong>\uff08high-level intermediate representation: \u9ad8\u6c34\u6e96\u4e2d\u9593\u8868\u73fe\uff09\u3084LIR<\/strong>\uff08low-level intermediate representation: \u4f4e\u6c34\u6e96\u4e2d\u9593\u8868\u73fe\uff09\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066\u304b\u3089\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u304a\u308a\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u65b9\u6cd5\u304c\u591a\u5c11\u306a\u308a\u3068\u3082\u660e\u3089\u304b\u306b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u79c1\u304c7\u6708\u304b\u3089ZJIT\u306b\u8ca2\u732e\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u305f<\/a>\u306e\u306f\u3053\u308c\u304c\u304d\u3063\u304b\u3051\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u3001JIT\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u6df1\u5800\u308a\u3057\u3066\u79c1\u306e\u8eab\u8fd1\u306b\u3044\u308bMax<\/a>\u3084Kokubun<\/a>\u3084Alan<\/a>\u3068\u3044\u3046JIT\u5c02\u9580\u5bb6\u305f\u3061\u306b\u8cea\u554f\u3059\u308b\u307e\u3067\u306e\u79c1\u306f\u3001JIT\u306b\u95a2\u3057\u3066\u591a\u304f\u306e\u70b9\u304c\u307e\u3060\u307e\u3060\u4e0d\u660e\u3067\u3057\u305f\u3002<\/p>\n

\u305d\u3053\u3067\u672c\u8a18\u4e8b\u3067\u306f\u3001Ruby\u306eJIT\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3064\u3044\u3066\u7686\u3055\u3093\u3082\u62b1\u3044\u3066\u3044\u308b\u3067\u3042\u308d\u3046\u5404\u7a2e\u306e\u7591\u554f\u70b9\u3084\u30e1\u30f3\u30bf\u30eb\u30ae\u30e3\u30c3\u30d7\u306b\u304a\u7b54\u3048\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

    \n
  1. JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306f\u5b9f\u969b\u306b\u306f\u3069\u3053\u306b\u4fdd\u5b58\u3055\u308c\u308b\u306e\u304b<\/strong><\/li>\n
  2. Ruby\u306fJIT\u30b3\u30fc\u30c9\u3092\u5b9f\u969b\u3069\u306e\u3088\u3046\u306b\u5b9f\u884c\u3059\u308b\u306e\u304b<\/strong><\/li>\n
  3. Ruby\u306f\u3001\u3069\u306e\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u304b\u3092\u3069\u306e\u3088\u3046\u306b\u6c7a\u5b9a\u3057\u3066\u3044\u308b\u306e\u304b<\/strong><\/li>\n
  4. JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30b3\u30fc\u30c9\u304c\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\u306e\u306f\u306a\u305c\u304b<\/strong><\/li>\n<\/ol>\n

    \u3053\u3053\u3067\u306f\u3001Ruby\u306e\u6b21\u4e16\u4ee3JIT\u3067\u3042\u308bZJIT\u3092\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3068\u3057\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306e\u6982\u5ff5\u306fYJIT\u3067\u3082\u305d\u306e\u307e\u307e\u901a\u7528\u3057\u307e\u3059\u3002<\/p>\n

    \"Shopify\/zjit<\/a>
    \"Shopify\/yjit<\/a><\/p>\n

    \ud83d\udd17<\/a> 1: JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30b3\u30fc\u30c9\u306f\u5b9f\u969b\u306b\u306f\u3069\u3053\u306b\u4fdd\u5b58\u3055\u308c\u308b\u306e\u304b<\/h3>\n

    \ud83d\udd17<\/a> Ruby\u306eISEQ\u3068YARV\u306e\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9<\/h4>\n

    Ruby\u304c\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u8fbc\u3080\u3068\u3001\u5404\u30e1\u30bd\u30c3\u30c9\u304cISEQ<\/strong>\uff08Instruction SEQuence\uff09\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u307e\u3059\u3002ISEQ\u306f\u3001YARV<\/a>\u3068\u3044\u3046CRuby VM\uff08\u4eee\u60f3\u6a5f\u68b0\uff09\u306e\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u30a4\u30f3\u30b9\u30c8\u30e9\u30af\u30b7\u30e7\u30f3\u3092\u542b\u3080\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u3059\u3002<\/p>\n

    \uff08YARV\u306e\u30a4\u30f3\u30b9\u30c8\u30e9\u30af\u30b7\u30e7\u30f3\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u5834\u5408\u3084\u3001\u3082\u3063\u3068\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001Kevin Newton<\/a>\u306b\u3088\u308b\u8a73\u3057\u3044\u30d6\u30ed\u30b0\u8a18\u4e8b\u30b7\u30ea\u30fc\u30ba<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\uff09<\/p>\n

    \u6700\u521d\u306f\u7c21\u5358\u306a\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n

    # example.rb\ndef foo\n  bar\nend\n\ndef bar\n  42\nend\n<\/code><\/pre>\n
    \u4e0a\u306e\u30b3\u30fc\u30c9\u3092ruby --dump=insn example.rb<\/code>\u3067\u5b9f\u884c\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\uff08\u8a33\u6ce8: Ruby\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306a\u3069\u306b\u3088\u3063\u3066\u82e5\u5e72\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff09\u3002<\/p>\n
    == disasm: #\n0000 putself                                                          (   2)[LiCa]\n0001 opt_send_without_block                 \n0003 leave                                  [Re]\n\n== disasm: #\n0000 putobject                              42                        (   6)[LiCa]\n0002 leave                                  [Re]\n<\/bar><\/calldata><\/foo><\/code><\/pre>\n
    \ud83d\udd17<\/a> JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3082ISEQ\u4e0a\u306b\u5b58\u5728\u3059\u308b<\/h4>\n
    \u5f53\u521d\u306e\u308f\u305f\u3057\u306f\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u306b\u3088\u3063\u3066\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u304c\u7f6e\u304d\u63db\u3048\u3089\u308c\u308b\u306e\u3060\u308d\u3046\u3050\u3089\u3044\u306b\u60f3\u50cf\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3064\u307e\u308b\u3068\u3053\u308d\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u304c\u6700\u901f\u306a\u306e\u3067\u3059\u304b\u3089\u3002\u3057\u304b\u3057Ruby\u306f\u3001\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3082\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3082\u4e21\u65b9\u4fdd\u6301\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u305d\u308c\u306b\u306f\u308c\u3063\u304d\u3068\u3057\u305f\u7406\u7531\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
    \u521d\u671f\u72b6\u614b\u306eISEQ\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
    ISEQ (foo\u30e1\u30bd\u30c3\u30c9)\n\u251c\u2500\u2500 body\n\u2502   \u251c\u2500\u2500 bytecode: [putself, opt_send_without_block, leave]\n\u2502   \u251c\u2500\u2500 jit_entry: NULL     \/\/ \uff08JIT\u30b3\u30fc\u30c9\u306a\u3057\uff09\n\u2502   \u251c\u2500\u2500 jit_entry_calls: 0  \/\/ \u547c\u3073\u51fa\u3057\u30ab\u30a6\u30f3\u30bf\n<\/code><\/pre>\n
    \u3053\u306efoo<\/code>\u30e1\u30bd\u30c3\u30c9\u304c\u4f55\u5ea6\u304b\u547c\u3073\u51fa\u3055\u308c\u308b\u3068\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u307e\u3059\u3002<\/p>\n
    ISEQ (foo\u30e1\u30bd\u30c3\u30c9)\n\u251c\u2500\u2500 body\n\u2502   \u251c\u2500\u2500 bytecode: [putself, opt_send_without_block, leave]  \/\/ \u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306f\u306a\u304f\u306a\u3063\u3066\u3044\u306a\u3044\uff01\n\u2502   \u251c\u2500\u2500 jit_entry: 0x7f8b2c001000  \/\/ \u30cd\u30a4\u30c6\u30a3\u30d6\u6a5f\u68b0\u8a9e\u3078\u306e\u30dd\u30a4\u30f3\u30bf\n\u2502   \u251c\u2500\u2500 jit_entry_calls: 35        \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u958b\u59cb\u3059\u308b\u95be\u5024\u306b\u9054\u3057\u305f\n<\/code><\/pre>\n
    jit_entry<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3078\u306e\u5165\u53e3\u3067\u3059\u3002\u3053\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u304cNULL<\/code>\u306e\u5834\u5408\u3001Ruby\u306f\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u3068\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3067\u3042\u308b\u5834\u5408\u3001Ruby\u306f\u305d\u306e\u30de\u30b7\u30f3\u30b3\u30fc\u30c9\u306b\u76f4\u63a5\u30b8\u30e3\u30f3\u30d7\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3069\u3061\u3089\u306e\u5834\u5408\u3082\u3001\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u305d\u306e\u3082\u306e\u306f\u6c7a\u3057\u3066\u306a\u304f\u306a\u308a\u307e\u305b\u3093\u3002Ruby\u306f\u3001\u6700\u9069\u5316\u89e3\u9664\uff08deoptimization\uff09\u306b\u5099\u3048\u308b\u305f\u3081\u306b\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u5fc5\u8981\u3068\u3057\u3066\u3044\u307e\u3059\uff08\u6700\u9069\u5316\u89e3\u9664\u306b\u3064\u3044\u3066\u306f\u5f8c\u8ff0\uff09\u3002<\/p>\n
    \ud83d\udd17<\/a> 2: \u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u304b\u3089\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3078\u306e\u5b9f\u884c\u5207\u308a\u66ff\u3048<\/h3>\n
    \u3053\u308c\u306b\u3064\u3044\u3066\u306f\u601d\u3063\u305f\u307b\u3069\u96e3\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5404ISEQ\u306f\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u305d\u306e\u30b3\u30fc\u30c9\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u4fdd\u6301\u3059\u308b\u306e\u3067\u3001Ruby\u306f\u3001\u5b9f\u884c\u3055\u308c\u308b\u3059\u3079\u3066\u306eISEQ\u306b\u3064\u3044\u3066jit_entry<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3060\u3051\u3067\u6e08\u307f\u307e\u3059\u3002<\/p>\n
    \"\"<\/a><\/p>\n
    JIT\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u3001\u3064\u307e\u308ajit_entry<\/code>\u304cNULL<\/code>\u306e\u5834\u5408\u306f\u3001\u5f15\u304d\u7d9a\u304d\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u3068\u3057\u3066\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002JIT\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n
    \ud83d\udd17<\/a> Ruby\u304c\u3069\u306e\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u304b\u6c7a\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n
    Ruby\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u308a\u3001\u4e00\u62ec\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30e1\u30bd\u30c3\u30c9\u304c\u4e00\u5b9a\u306e\u56de\u6570\u5b9f\u884c\u3055\u308c\u308b\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u958b\u59cb\u3057\u307e\u3059\u3002
    ZJIT\u306e\u5834\u5408\u306f\u30012\u3064\u306e\u30d5\u30a7\u30fc\u30ba\u306b\u5206\u3051\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n
    if (body->jit_entry == NULL && rb_zjit_enabled_p) {\n    body->jit_entry_calls++;\n\n    \/\/ \u30d5\u30a7\u30fc\u30ba1: \u30e1\u30bd\u30c3\u30c9\u3092\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3059\u308b\n    if (body->jit_entry_calls == rb_zjit_profile_threshold) {\n        rb_zjit_profile_enable(iseq);\n    }\n\n    \/\/ \u30d5\u30a7\u30fc\u30ba2: \u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\n    if (body->jit_entry_calls == rb_zjit_call_threshold) {\n        rb_zjit_compile_iseq(iseq, false);\n        \/\/ \u4ee5\u5f8cjit_entry\u306f\u30de\u30b7\u30f3\u30b3\u30fc\u30c9\u3092\u6307\u3059\u3088\u3046\u306b\u306a\u308b\n    }\n}\n<\/code><\/pre>\n
    ZJIT\u3067\u306f\u3001\u73fe\u6642\u70b9\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3057\u304d\u3044\u5024\u306f25<\/code>\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u304d\u3044\u5024\u306f30<\/code>\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\uff08\u3053\u308c\u3089\u306e\u5024\u306f\u4eca\u5f8c\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff09\u3002
    \u3064\u307e\u308a\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
    \u547c\u3073\u51fa\u3057\u56de\u6570:  0 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 25 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 30 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25ba\n             \u2502               \u2502                \u2502\n\u30e2\u30fc\u30c9:       \u2514\u2500 \u30a4\u30f3\u30bf\u30d7\u30ea\u30bf \u2500\u2500\u2534\u2500\u2500 \u30d7\u30ed\u30d5\u30a1\u30a4\u30eb \u2500\u2500\u2534\u2500 \u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\uff08JIT\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\uff09\n<\/code><\/pre>\n
    \u3053\u306e\u305f\u3081\u3001JIT\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u5927\u9650\u306b\u9ad8\u3081\u308b\u306b\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u300c\u30a6\u30a9\u30fc\u30e0\u30a2\u30c3\u30d7\u300d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
    \ud83d\udd17<\/a> JIT\u306f\u3044\u3064\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u8ae6\u3081\u308b\u304b: \u6700\u9069\u5316\u89e3\u9664\u3092\u7406\u89e3\u3059\u308b<\/h4>\n
    JIT\u30b3\u30fc\u30c9\u306f\u3001\u9ad8\u901f\u5b9f\u884c\u306e\u305f\u3081\u306b\u3044\u304f\u3064\u304b\u306e\u524d\u63d0\u3092\u7acb\u3066\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u524d\u63d0\u304c\u5d29\u308c\u308b\u3068\u3001Ruby\u306f\u300c\u6700\u9069\u5316\u89e3\u9664\uff08deoptimize\uff09<\/strong>\u300d\u3001\u3059\u306a\u308f\u3061\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u5b9f\u884c\u306b\u5236\u5fa1\u3092\u623b\u3055\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u30b3\u30fc\u30c9\u304b\u3089\u5e38\u306b\u6b63\u3057\u3044\u7d50\u679c\u3092\u5f97\u3089\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u5b89\u5168\u6a5f\u69cb\u3067\u3059\u3002<\/p>\n
    \u4ee5\u4e0b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
    def add(a, b)\n  a + b\nend\n<\/code><\/pre>\n
    \u4e0a\u306e\u30b3\u30fc\u30c9\u304b\u3089\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a4\u30f3\u30b9\u30c8\u30e9\u30af\u30b7\u30e7\u30f3\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n
    == disasm: #\n0000 getlocal_WC_0                          a@0                       (   2)[LiCa]\n0002 getlocal_WC_0                          b@1\n0004 opt_plus                               [CcCr]\n0006 leave                                                            (   3)[Re]\n<\/calldata><\/add><\/code><\/pre>\n
    Ruby\u306f\u3001opt_plus<\/code>\u304c\u3069\u3053\u3067\u547c\u3073\u51fa\u3055\u308c\u308b\u304b\u3092\u4e8b\u524d\u306b\u306f\u77e5\u308a\u5f97\u306a\u3044\u305f\u3081\u3001\u80cc\u5f8c\u306eC\u95a2\u6570vm_opt_plus<\/code>\u306f\u3001+<\/code>\u306b\u5fdc\u7b54\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3055\u307e\u3056\u307e\u306a\u30af\u30e9\u30b9\uff08String<\/code>\u3001Array<\/code>\u3001Float<\/code>\u3001Integer<\/code>\u306a\u3069\uff09\u3092\u51e6\u7406\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
    \u3057\u304b\u3057\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306b\u3088\u3063\u3066add<\/code>\u30e1\u30bd\u30c3\u30c9\u304c\u5e38\u306b\u6574\u6570\uff08Fixnum<\/code>\uff09\u3067\u547c\u3073\u51fa\u3055\u308c\u308b\u3053\u3068\u304c\u5224\u660e\u3059\u308c\u3070\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u3001\u6574\u6570\u306e\u52a0\u7b97\u300c\u3060\u3051\u300d\u3092\u6271\u3046\u3088\u3046\u6700\u9069\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n
    \u305f\u3060\u3057\u3001\u3053\u306e\u524d\u63d0\u304c\u6210\u308a\u7acb\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u305f\u3081\u306e\u300c\u30ac\u30fc\u30c9\u6587\u300d\u3082\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n
    \"\"<\/a><\/p>\n
    \u3053\u306e\u524d\u63d0\u304c\u5d29\u308c\u305f\u5834\u5408\u306f\uff08\u4f8b: add(1.5, 2)<\/code>\uff09\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u51e6\u7406\u304c\u9032\u307f\u307e\u3059\u3002<\/p>\n
      \n
    1. \u30c1\u30a7\u30c3\u30af\u306e\u30ac\u30fc\u30c9\u6587\u304c\u5931\u6557\u3059\u308b<\/li>\n
    2. JIT\u30b3\u30fc\u30c9\u306f”side exit”\u306b\u30b8\u30e3\u30f3\u30d7\u3059\u308b<\/li>\n
    3. “side exit”\u3067\u306f\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u5b9f\u884c\u30b9\u30c6\u30fc\u30c8\uff08\u30b9\u30bf\u30c3\u30af\u3084\u30a4\u30f3\u30b9\u30c8\u30e9\u30af\u30b7\u30e7\u30f3\u30dd\u30a4\u30f3\u30bf\u306a\u3069\uff09\u3092\u5fa9\u5143\u3059\u308b<\/li>\n
    4. \u5236\u5fa1\u3092\u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u306b\u8fd4\u3059<\/li>\n
    5. \u30a4\u30f3\u30bf\u30d7\u30ea\u30bf\u306fopt_plus<\/code>\u3092\u5b9f\u884c\u3057\u3066vm_opt_plus<\/code>\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059<\/li>\n<\/ol>\n
      \u3053\u306e\u4ed6\u306b\u3001\u4ee5\u4e0b\u306b\u3088\u3063\u3066\u3082\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u307e\u3059\u3002<\/p>\n