)]}'
{
  "log": [
    {
      "commit": "a59af8aeaad8fe7d68d8f8de63eab9cf85b6ab31",
      "tree": "83195c74b135731cc4555254763a8f449691c1b0",
      "parents": [
        "5c8cc64b5f1580faf510f27527e7e22987174963"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Nov 27 17:42:32 2019 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Dec 03 14:32:09 2019 +0000"
      },
      "message": "JIT baseline: trigger optimized compilation on hotness threshold.\n\n- Add a new hotness count in the ProfilingInfo to not conflict with\ninterpreter hotness which may use it for OSR.\n- Add a baseline flag in the OatQuickMethodHeader to identify baseline\ncompiled methods.\n- Add a -Xusetieredjit flag to experiment and test.\n\nBug: 119800099\nTest: test.py with Xusetieredjit to true\n\nChange-Id: I8512853f869f1312e3edc60bf64413dee9143c52\n"
    },
    {
      "commit": "0a51605ddd81635135463dab08b6f7c21b58ffb0",
      "tree": "820f338333010f4d6e4b543ffea47e9ff7d2dd3f",
      "parents": [
        "e2727154f25e0db9a5bb92af494d8e47b181dfcf"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Oct 14 13:00:44 2019 +0000"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Oct 14 13:00:44 2019 +0000"
      },
      "message": "Revert \"Make compiler/optimizing/ symbols hidden.\"\n\nThis reverts commit e2727154f25e0db9a5bb92af494d8e47b181dfcf.\n\nReason for revert: Breaks ASAN tests (ODR violation).\nBug: 142365358\n\nChange-Id: I38103d74a1297256c81d90872b6902ff1e9ef7a4\n"
    },
    {
      "commit": "e2727154f25e0db9a5bb92af494d8e47b181dfcf",
      "tree": "0ddc6eec3ad9508d7eb1f2b941786dd0ed7d2cd8",
      "parents": [
        "c78860b91ae07eed92f86876e7a03132adea6fcd"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Oct 10 10:46:42 2019 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Oct 14 08:22:00 2019 +0000"
      },
      "message": "Make compiler/optimizing/ symbols hidden.\n\nMake symbols in compiler/optimizing hidden by a namespace\nattribute. The unit intrinsic_objects.{h,cc} is excluded as\nit is needed by dex2oat.\n\nAs the symbols are no longer exported, gtests are now linked\nwith the static version of the libartd-compiler library.\n\nlibart-compiler.so size:\n  - before:\n    arm: 2396152\n    arm64: 3345280\n  - after:\n    arm: 2016176 (-371KiB, -15.9%)\n    arm64: 2874480 (-460KiB, -14.1%)\n\nTest: m test-art-host-gtest\nTest: testrunner.py --host --optimizing --jit\nBug: 142365358\nChange-Id: I1fb04a33351f53f00b389a1642e81a68e40912a8\n"
    },
    {
      "commit": "2808be84a8f86542450670acdb5e6b55498ff5f0",
      "tree": "f41b63e3109a6a6a9bd534f32b8d92f20eb9ef35",
      "parents": [
        "460f05480379d5c75555d06c4938bc990ce6ff83"
      ],
      "author": {
        "name": "Artem Serov",
        "email": "artem.serov@linaro.org",
        "time": "Thu Dec 20 19:15:11 2018 +0000"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Jul 15 09:30:36 2019 +0000"
      },
      "message": "ART: Introduce stackmap with no DexRegInfo.\n\nSome of safepoints don\u0027t need to have DexRegisterMap info;\nthis will decrease the stackmap size.\n\n.oat file size reduction:\n - boot.oat:           -233 kb (-5.4%)\n - boot-framework.oat: -704 kb (-4.9%)\n\nTest: 461-get-reference-vreg, 466-get-live-vreg.\nTest: 543-env-long-ref, 616-cha*.\nTest: test-art-target, +gc-stress.\n\nChange-Id: Idbad355770e30a30dcf14127642e03ee666878b8\n"
    },
    {
      "commit": "697c47a7ffd4489c4bc4edc229c8123309526286",
      "tree": "04cf832df533fd529cc598ecff9be8c2763d61b8",
      "parents": [
        "8ac3dc5ec31569630a99caed2a69f64d84a6c0b6"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun Jun 16 21:53:07 2019 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Tue Jun 18 11:35:05 2019 +0000"
      },
      "message": "Stack maps: Handle special cases using flags.\n\nKeep the BitTable decoder simple (1+NumColumns varints).\nMove special case handling up to CodeInfo (empty/dedup).\n\nThis speeds up CodeInfo by 5%, and maps startup by 0.05%.\nChange in size is negligible (the bits mostly just move).\n\nTest: test.py -b --host --64 --optimizing\nChange-Id: Ib6abe52f04384de9ffd7cfba04a3124b62f713ff\n"
    },
    {
      "commit": "e42a4b95eed312e6f7019645f4c66b2d77254433",
      "tree": "dd150dd4651180c5fbba3a4fd90f8ca8a3f14e9d",
      "parents": [
        "67ba872df798271d2960be27c7f1e813259feabc"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun May 26 00:10:25 2019 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun May 26 23:47:47 2019 +0000"
      },
      "message": "Optimize stack maps: add fast path for no inline info.\n\nConsumers of CodeInfo can skip significant chunks of work\nif they can quickly determine that method has no inlining.\n\nStore this fact as a flag bit at the start of code info.\nThis changes binary format and adds \u003c0.1% to oat size.\n\nI added the extra flag field as the simplest solution for now,\nalthough I would like to use it for more things in the future.\n(e.g. store the special cases of empty/deduped tables in it)\n\nThis improves app startup by 0.4% (maps,speed).\nPMD on golem seems to gets around 15% faster.\n\nBug: 133257467\nTest: ./art/test.py -b --host --64\nChange-Id: Ia498a31bafc74b51cc95b8c70cf1da4b0e3d894e\n"
    },
    {
      "commit": "bf5f0f3f1eea2e712e7269ff1e1f9b1bcc4cbaee",
      "tree": "030ef55b56ede3dbf42b6b5f19c59bfc0583636f",
      "parents": [
        "7e057ec0e023910f6bc42bc552a8463343cf346f"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Mar 05 15:41:50 2019 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Mar 06 14:21:51 2019 +0000"
      },
      "message": "Revert \"Revert^2 \"Add code size to CodeInfo\"\"\n\nThis reverts commit e1412dacbf1d2a809bd1fca658cc8cb8f61f8ee6.\n\nBug: 123510633\nBug: 127305289\n\nReason for revert: b/127305289\n\nChange-Id: I54557b05a44777f1fa2c15bde4fa648980f42eed\n"
    },
    {
      "commit": "b1b2ca97651b1993e0a00a4543209419afbc6e64",
      "tree": "64e58ebe9d4c77f1adf401bb4d9066c720a0c29c",
      "parents": [
        "37678283d1be77007e61bb0e811008aa89a27d14"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Mar 05 09:23:37 2019 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Mar 05 11:36:19 2019 +0000"
      },
      "message": "Revert \"Don\u0027t pack code size in CodeInfo.\"\n\nThis reverts commit e35ac04a1a9a22b1c4386b27f3a30cd840aa17b1.\n\nBug: 123510633\nBug: 127305289\n\nReason for revert: b/127305289\n\nChange-Id: I18c2d9291411b31641333c14c47da8c4fdf317f7\n"
    },
    {
      "commit": "e35ac04a1a9a22b1c4386b27f3a30cd840aa17b1",
      "tree": "951fc00e6ef2a8576c9f6c0a6d7601cd93283199",
      "parents": [
        "8834699a05deb680a36dd3075afb85aee9208f37"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Mon Feb 25 18:11:53 2019 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Feb 27 23:20:07 2019 +0000"
      },
      "message": "Don\u0027t pack code size in CodeInfo.\n\nThe unpacking is tricky for host tooling as we need to propagate ISA.\n\nThis adds 0.05% to oat file size.\n\nBug: 123510633\nChange-Id: I5618db5e5dbe83d8a2bb89aef61cb0b10e336f40\n"
    },
    {
      "commit": "e1412dacbf1d2a809bd1fca658cc8cb8f61f8ee6",
      "tree": "bb3f56ecefe08b66f7a330a02caef0b089a0c2af",
      "parents": [
        "8f20a23a35fa6fbe4dcb4ff70268a24dc7fb2a24"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Feb 13 17:27:17 2019 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Feb 14 09:43:00 2019 +0000"
      },
      "message": "Revert^2 \"Add code size to CodeInfo\"\n\nThis temporarily adds 0.25% to oat file size.\nThe space will be reclaimed back in follow-up CL.\n\nThis reverts commit 8f20a23a35fa6fbe4dcb4ff70268a24dc7fb2a24.\n\nReason for revert: Reland as-is after CL/903819\n\nBug: 123510633\nTest: DCHECK compare the two stored code sizes.\nChange-Id: Ia3ab31c208948f4996188764fcdcba13d9977d19\n"
    },
    {
      "commit": "8f20a23a35fa6fbe4dcb4ff70268a24dc7fb2a24",
      "tree": "84dc682b40f38d0377639befe6f3d43e5655a43c",
      "parents": [
        "68efa7b1128486e08ae60cd27181645b27bbd2e4"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Tue Feb 12 19:42:54 2019 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Tue Feb 12 19:42:54 2019 +0000"
      },
      "message": "Revert \"Add code size to CodeInfo\"\n\nThis reverts commit 68efa7b1128486e08ae60cd27181645b27bbd2e4.\n\nReason for revert: Breaks tests\n\nChange-Id: I28fb143990f58e0d5f0b106bea9d9a159f19297e\n"
    },
    {
      "commit": "68efa7b1128486e08ae60cd27181645b27bbd2e4",
      "tree": "bb3f56ecefe08b66f7a330a02caef0b089a0c2af",
      "parents": [
        "794350fd0e21aa9e259b6c45394494871e7fdb13"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Mon Jan 28 18:59:23 2019 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Mon Feb 11 13:23:53 2019 +0000"
      },
      "message": "Add code size to CodeInfo\n\nThis temporarily adds 0.25% to oat file size.\nThe space will be reclaimed back in follow-up CL.\n\nBug: 123510633\nTest: DCHECK compare the two stored code sizes.\nChange-Id: I15340824ca637fd075a4cef87771b06cb96bb9f4\n"
    },
    {
      "commit": "42deda8a5ee207706df37d7cb56d2a48e94073f0",
      "tree": "fc1b40813e502c04241950eef5c8b27313fa9ed7",
      "parents": [
        "dd667714e9504d447e752b0cffdf757a6133392b"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Aug 10 11:23:27 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Aug 10 16:41:33 2018 +0100"
      },
      "message": "Add helper method to iterate over BitTable fields in CodeInfo.\n\nAvoid the repetitive code patterns and simplify code.\n\nTest: test-art-host-gtest-stack_map_test\nTest: checked output of oatdump\nChange-Id: I2354bc652837eb34efeecf4de56a027384544034\n"
    },
    {
      "commit": "e7a9194558379ee24fde82fcaeaee29542df1520",
      "tree": "30f3c43f2d64f159503bb8c3442aa39cc6cb612e",
      "parents": [
        "f50419eee7290542db07bff23c4f65e693ba037f"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Aug 01 17:23:53 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Aug 03 12:48:49 2018 +0100"
      },
      "message": "Simplify StackMapStream encoding.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Ife021d03e4e486043ec609f9af8673ace7bde497\n"
    },
    {
      "commit": "eeac119a22b09496eb66109c906df6a5243eac36",
      "tree": "c006a2c9b8c5c513939274409845e0be57cb18a5",
      "parents": [
        "1bfd891d06e276d602b4a6ccf1a9f70967195218",
        "ced04835d8e3cd3f68576cfffc1d21283ca151b4"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Aug 02 16:43:35 2018 +0000"
      },
      "committer": {
        "name": "Gerrit Code Review",
        "email": "noreply-gerritcodereview@google.com",
        "time": "Thu Aug 02 16:43:35 2018 +0000"
      },
      "message": "Merge \"Reuse arena memory for each block in scheduler.\""
    },
    {
      "commit": "ced04835d8e3cd3f68576cfffc1d21283ca151b4",
      "tree": "125ddd1d222f4fb1710e17c76803ad3e92572a5c",
      "parents": [
        "350b6a312222b9b27bfee0e72ce261a45cb60e1c"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Jul 26 14:42:17 2018 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Aug 02 15:47:02 2018 +0100"
      },
      "message": "Reuse arena memory for each block in scheduler.\n\nThis reduces the peak memory used for large methods with\nmultiple blocks to schedule.\n\nCompiling the aosp_taimen-userdebug boot image, the most\nmemory hungry method BatteryStats.dumpLocked has the\nScheduler memory allocations in ArenaStack hidden by the\nregister allocator:\n  - before:\n    MEM: used: 8300224, allocated: 9175040, lost: 197360\n    Scheduler       8300224\n  - after:\n    MEM: used: 5914296, allocated: 7864320, lost: 78200\n    SsaLiveness     5532840\n    RegAllocator     144968\n    RegAllocVldt     236488\nThe total arena memory used, including the ArenaAllocator\nnot listed above, goes from 44333648 to 41950324 (-5.4%).\n(Measured with kArenaAllocatorCountAllocations\u003dtrue,\nkArenaAllocatorPreciseTracking\u003dfalse.)\n\nAlso remove one unnecessary -Wframe-larger-than\u003d workaround\nand add one workaround for large frame with the above arena\nalloc tracking flags.\n\nTest: m test-art-host-gtest\nTest: testrunner.py --host\nBug: 34053922\nChange-Id: I7fd8d90dcc13b184b1e5bd0bcac072388710a129\n"
    },
    {
      "commit": "3aaaa21055ab73562b8da7968ac4fa5fe9d44695",
      "tree": "a3118eee8f5cc9c661e1480f2ce73691c3786f8a",
      "parents": [
        "605339045d347074b9149c0185fe2ca7fafe470d"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Mon Jul 30 16:46:53 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Aug 02 11:31:44 2018 +0100"
      },
      "message": "Encode frame info using varints.\n\nThis saves 0.3% of oat file size.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: I85003946a9579f03cb1ed2b5e9b2c62b3efe6734\n"
    },
    {
      "commit": "8cd54547cec8a4537db5682c2da8be22843b1310",
      "tree": "fb1158993bab2e027984cedab59b402c051a45a7",
      "parents": [
        "91f0fdb4372d3f2bcfcd9db67afcbe7ee1901048"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun Jul 15 23:58:44 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Aug 01 14:49:40 2018 +0100"
      },
      "message": "Move MethodInfo to CodeInfo.\n\nThere is no need to treat it specially any more,\nbecause of the de-duplication at BitTable level.\n\nThis saves 0.6% of oat file size.\n\nTest: test-art-host-gtest\nChange-Id: Ife7927d736243879a41d6f325d49ebf6930a63f6\n"
    },
    {
      "commit": "2c76257e4bfcd6f522b0cd3487ba7d9900043243",
      "tree": "ab1098cffcb3e13087e770d26fef9f4d6f06a550",
      "parents": [
        "0b4a439f808f4602c7b97364e49c5546f5100d51"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Jun 27 10:09:11 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Jul 13 16:32:11 2018 +0100"
      },
      "message": "Remove unused InvokeInfo from stack maps and the runtime.\n\nTest: test-art-host-gtest\nChange-Id: I5ce28973042f9241e72ceb52fc5db472ca571563\n"
    },
    {
      "commit": "f6ba5b316b51d0fb9f91cb51a42e51dfeee62ee4",
      "tree": "ac3b776ae3c20fc957949d06dd878ef3ffa6ffb5",
      "parents": [
        "cca7cb9ffa56d8ab8fd0c5997c8bfd965d7426c1"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sat Jun 23 22:05:49 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Tue Jun 26 16:51:15 2018 +0100"
      },
      "message": "Add method frame info to CodeInfo.\n\nThe stored information will be used in follow-up CLs.\n\nThis temporarily increases .oat file size by 0.7%.\n\nTest: test-art-host-gtest\nChange-Id: Ie7d898b06398ae44287bb1e8153861ab112a216c\n"
    },
    {
      "commit": "cf7833edafa2dbf31ec7d29b51874dba6a92ae36",
      "tree": "47b80e86d17768fe2ca0744fe4a5ebff9f1449a6",
      "parents": [
        "45b12e704e158f29877c78bd9a8406db7e361537"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Jun 14 16:45:22 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Jun 14 17:14:45 2018 +0100"
      },
      "message": "Template BitTable based on the accessors.\n\nTest: test-art-host-gtest-stack_map_test\nTest: test-art-host-gtest-bit_table_test\nChange-Id: I96c04e21864009b64cb3177a0e9f0f8782a9b10b\n"
    },
    {
      "commit": "45b12e704e158f29877c78bd9a8406db7e361537",
      "tree": "1bfc21d88a173b4a751a37a223a39d7c12976f95",
      "parents": [
        "c9633c80c2125814a8a7459079c1931a5c201011",
        "e1402125e8363b49e176c6072893d1c110a05d2f"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Jun 14 13:37:36 2018 +0000"
      },
      "committer": {
        "name": "Gerrit Code Review",
        "email": "noreply-gerritcodereview@google.com",
        "time": "Thu Jun 14 13:37:36 2018 +0000"
      },
      "message": "Merge \"Move some helper methods to DexRegisterLocation.\""
    },
    {
      "commit": "f325e28656b51167f29496e87926b805240052c4",
      "tree": "b37117db0fa312c567fddb8d6a06df6dd0b9c052",
      "parents": [
        "50fac06c51864f293c61ff9d0983b82698cf6dac"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Jun 13 15:02:32 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Jun 14 12:41:55 2018 +0100"
      },
      "message": "Remove POD helper classes for BitTableBuilder.\n\nInstead of declaring the classes explicitly and then casting,\ncreate generic BitTableBuilder::Entry class for that purpose.\nThis removes the need to keep the POD helper classes in sync.\n\nTest: test-art-host-gtest-stack_map_test\nTest: test-art-host-gtest-bit_table_test\nChange-Id: I4c632313bafd3a4bc823648436a5310b6f2a1d13\n"
    },
    {
      "commit": "e1402125e8363b49e176c6072893d1c110a05d2f",
      "tree": "44ec055be78cdcb8086a598cbf791f8c4627e157",
      "parents": [
        "86decb6a3e3ebba8c3c67bfd25c12d9a85794f65"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Jun 13 18:20:45 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Jun 14 12:31:44 2018 +0100"
      },
      "message": "Move some helper methods to DexRegisterLocation.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: I0abab008159db023d531df69214cd3bb8c0639bd\n"
    },
    {
      "commit": "50fac06c51864f293c61ff9d0983b82698cf6dac",
      "tree": "7f7d09fa8aeacf4b5a255085af02970347a54cd0",
      "parents": [
        "86decb6a3e3ebba8c3c67bfd25c12d9a85794f65"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Jun 13 18:55:35 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Jun 13 19:03:09 2018 +0100"
      },
      "message": "Add Kind column to stack maps.\n\nAdd \u0027Kind\u0027 column to stack maps which marks special stack map types,\nand use it at run-time to add extra sanity checks.\n\nIt will also allow us to binary search the stack maps.\n\nThe column increases .oat file by 0.2%.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: I2a9143afa0e32bb06174604ca81a64c41fed232f\n"
    },
    {
      "commit": "6de8833fb64e59301eada4005ed04da995796170",
      "tree": "9f5b731ae1c0428cf5dcae4105936a7a165a43c9",
      "parents": [
        "d97e0828958fd14a962e37af2865bc2e628547ce"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun Jun 03 12:00:11 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Jun 07 12:00:18 2018 +0100"
      },
      "message": "Delta-compress register maps in stack maps.\n\nThe register maps tend to be similar from stack map to stack map,\nso instead of encoding them again, store only the modified ones.\n\nThe dex register bitmap stores the delta now - if register has\nbeen modified since the previous stack map, the bit will be set.\n\nThe decoding logic scans backwards through stack maps until it\neventfully finds the most recent value of each register.\n\nThis CL saves ~2.5% of .oat file size (~10% of stackmap size).\n\nDue to the scan, this makes dex register decoding slower by factor\nof 2.5, but that still beats the old algorithm before refactoring.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Id5217a329eb757954e0c9447f38b05ec34118f84\n"
    },
    {
      "commit": "6eb4d5e4bc2ce068004c1d7c85dbfff0c5efd11d",
      "tree": "e2d8a213a4996d94988af748175d3eb5b7694f33",
      "parents": [
        "0366f3251c3078a0161d178e3b0afd5efc4c84c0"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun Jun 03 12:00:20 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Sun Jun 03 12:00:20 2018 +0100"
      },
      "message": "De-duplicate inline info in stack maps.\n\nThis saves 0.3% of .oat file size.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Ic7d5addf04fb9b7a2f29a7d1d99ea93b39388fd2\n"
    },
    {
      "commit": "049d68181e4862271acc027bcb0b4cf5bcc122b6",
      "tree": "0073869bb1870fd31b2d81119bdc60eba456dc5a",
      "parents": [
        "71ec1cc0665cdb9d39f4fd284d68962020417a53"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri May 18 14:46:49 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Jun 01 13:26:48 2018 +0100"
      },
      "message": "Rewrite stackmap verification code.\n\nThe new version is more complicated but it gives much higher\nconfidence about the correctness of the stackmap encoding.\n\nThe old version was comparing the internal builder entries to the\ndecoded information, which verified the bit-level manipulations,\nbut it did not verify that we created the internal state correctly.\n\nThe new version directly compares the parameters passed to the\nStackMapStream and the decoded values. This way, it really tests\nthe whole system. It uses lambda captures to record the parameters.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Ib92819cc35ce0d790128392d303f6feabd7d9c74\n"
    },
    {
      "commit": "71ec1cc0665cdb9d39f4fd284d68962020417a53",
      "tree": "8d19b11ab3e04213c46b1b12ae94dbf54b305bfb",
      "parents": [
        "03f16e4de1e3289414888fe0a5104205a781bd2f"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri May 18 15:57:25 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Jun 01 13:26:46 2018 +0100"
      },
      "message": "Rewrite dex register map encoding in stackmaps.\n\nSimplify code by encoding dex register maps using BitTables.\nThe overall design is unchanged (bitmask+indices+catalogue).\n\nThis CL saves ~0.4% of .oat file size.\n\nThe dex register map decoding is factor of 3 faster now\n(based on the time to verify the register maps on Arm).\nThis is not too surprising as the old version was O(n^2).\n\nIt also reduces compiler arena memory usage by 11% since the\nBitTableBuilder is more memory efficient, we store less\nintermediate data, and we deduplicate most data on the fly.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Ib703a5ddf7f581280522d589e4a2bfebe53c26a9\n"
    },
    {
      "commit": "21d45b4f4ef3661ac33d622aaac5dd6d2ce7deb8",
      "tree": "121e046a949025bca4d766fdfdc5ea58e4ea4a10",
      "parents": [
        "d02b23f7ee9664213216a82bfdcb0ee83824de04"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed May 30 06:35:05 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed May 30 17:59:24 2018 +0100"
      },
      "message": "Simplify DexRegisterMap API.\n\nStore some of the needed decoding state explicitly to avoid passing it\naround all the time. The DexRegisterMap class is rewritten in next CL.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Ie268dff2a1c1da2e08f0e6799ae51c30e11f350b\n"
    },
    {
      "commit": "d02b23f7ee9664213216a82bfdcb0ee83824de04",
      "tree": "254b794533a6821c2ed2df31fab807abf7d508a4",
      "parents": [
        "08231f6cb3095a7dbde29299a7da5413a5f992e4"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Tue May 29 23:27:22 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed May 30 17:59:24 2018 +0100"
      },
      "message": "Remove the CodeOffset helper class.\n\nI need to reduce the StackMapEntry to a POD type so that it\ncan be used in BitTableBuilder.\n\nTest: test-art-host-gtest-stack_map_test\nChange-Id: I5f9ad7fdc9c9405f22669a11aea14f925ef06ef7\n"
    },
    {
      "commit": "4b59d107f91601c4e0095d7a9db40970d4ed6956",
      "tree": "b120add4870b86cefc308ec3a0100851cfc1a4c0",
      "parents": [
        "da4ff8bfcf03d6186b7d21c7bd8b90248f7b2f96"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Tue May 29 21:46:10 2018 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed May 30 14:32:44 2018 +0100"
      },
      "message": "Revert^2 \"Optimize register mask and stack mask in stack maps.\"\n\nThis reverts commit 8b20b5c1f5b454b2f8b8bff492c88724b5002600.\n\nReason for revert: Retry submit unmodified after fixing the test.\n\nUse BitTable to store the masks as well and move the\ndeduplication responsibility to the BitTable builders.\n\nDon\u0027t generate entries for masks which are all zeros.\nThis saves 0.2% of .oat file size on both Arm64 and Arm.\n\nEncode registers as (value+shift) due to tailing zeros.\nThis saves 1.0% of .oat file size on Arm64 and 0.2% on Arm.\n\nTest: test-art-target-gtest-exception_test\nTest: test-art-host-gtest-bit_table_test\nTest: test-art-host-gtest-stack_map_test\nChange-Id: Ib643776dbec3f051cc29cd13ff39e453fab5fae9\n"
    },
    {
      "commit": "8b20b5c1f5b454b2f8b8bff492c88724b5002600",
      "tree": "51bea8ddfff23b1f6b0323eaeacf42e6f6199015",
      "parents": [
        "ffaf87a429766ed80e6afee5bebea93db539620b"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue May 29 15:32:55 2018 +0000"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue May 29 15:32:55 2018 +0000"
      },
      "message": "Revert \"Optimize register mask and stack mask in stack maps.\"\n\nThis reverts commit ffaf87a429766ed80e6afee5bebea93db539620b.\n\nReason for revert: Breaks exception_test32 on target\nfor CMS and heap poisoning configs.\n\nChange-Id: I127c17f693e28211a799f73a50e73105edee7e4c\n"
    },
    {
      "commit": "ffaf87a429766ed80e6afee5bebea93db539620b",
      "tree": "d79637f4b6a564facf4b837c3ff125bb3755594e",
      "parents": [
        "5513c2b68a08109a5bfd811c7b2c8bbc66244e8e"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed May 23 14:44:39 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Mon May 28 08:45:37 2018 +0100"
      },
      "message": "Optimize register mask and stack mask in stack maps.\n\nUse BitTable to store the masks as well and move the\ndeduplication responsibility to the BitTable builders.\n\nDon\u0027t generate entries for masks which are all zeros.\nThis saves 0.2% of .oat file size on both Arm64 and Arm.\n\nEncode registers as (value+shift) due to tailing zeros.\nThis saves 1.0% of .oat file size on Arm64 and 0.2% on Arm.\n\nTest: test-art-host-gtest\nChange-Id: I636b7edd49e10e8afc9f2aa385b5980f7ee0e1f1\n"
    },
    {
      "commit": "052f8ca1776ed7deb4f036498edd69eb6a1b942f",
      "tree": "ae993f1a634b258e124df12663a1d24859917b05",
      "parents": [
        "1c515f0b9d621869a2e67ce5e0f5532d0f2f323a"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Apr 26 15:42:54 2018 +0100"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Mon May 21 20:28:41 2018 +0100"
      },
      "message": "Rewrite stackmap encoding code.\n\nRemove most of the code related to handling of bit encodings.\nThe design is still same; the encodings are just more implicit.\nMost of the complexity is replaced with a single BitTable class,\nwhich is a generic purpose table of tightly bit-packed integers.\nIt has its own header which stores the bit-encoding of columns,\nand that removes the need to handle the encodings explicitly.\n\nOther classes, like StackMap, are accessors into the BitTable,\nwith named getter methods for the individual columns.\n\nThis CL saves ~1% of .oat file size (~4% of stackmap size).\n\nTest: test-art-host-gtest\nChange-Id: I7e92683753b0cc376300e3b23d892feac3670890\n"
    },
    {
      "commit": "1ce2b3b76d121a765212d69399241843951973ae",
      "tree": "6f2bb0191c869e79891df3151d6faba3a297b9a8",
      "parents": [
        "281c99864f635ef4fd005dba4ba0c750cb9a6143"
      ],
      "author": {
        "name": "David Sehr",
        "email": "sehr@google.com",
        "time": "Thu Apr 05 11:02:03 2018 -0700"
      },
      "committer": {
        "name": "David Sehr",
        "email": "sehr@google.com",
        "time": "Thu Apr 05 11:07:59 2018 -0700"
      },
      "message": "Move remaining runtime/base stuff to libartbase\n\nMove the remainder of the Arena stuff, plus dumpable and\nruntime/*memory_region* to libartbase.  More preparation to build\nprofiling library.\n\nBug: 22322814\nTest: make -j 50 checkbuild\nChange-Id: Iaf26d310c89bc58846553281576c18102f5e4122\n"
    },
    {
      "commit": "92f7f3ce3b01f7c7df1c15b81c900e087248093f",
      "tree": "37647ac824e450f80d752539cabbe631ba795c75",
      "parents": [
        "5dcb0d2cabe9d67987a6a7477fb124cef92abefb"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Oct 31 11:38:30 2017 +0000"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Wed Nov 15 14:29:52 2017 +0000"
      },
      "message": "Use intrinsic codegen for compiling intrinsic methods.\n\nWhen compiling an intrinsic method, generate a graph that\ninvokes the same method and try to compile it. If the call\nis actually intrinsified (or simplified to other HIR) and\nyields a leaf method, use the result of this compilation\nattempt, otherwise compile the actual code or JNI stub.\n\nNote that CodeGenerator::CreateThrowingSlowPathLocations()\nactually marks the locations as kNoCall if the throw is not\nin a catch block, thus considering some throwing methods\n(for example, String.charAt()) as leaf methods.\n\nWe would ideally want to use the intrinsic codegen for all\nintrinsics that do not generate a slow-path call to the\ndefault implementation. Relying on the leaf method is\nsuboptimal as we\u0027re missing out on methods that do other\ntypes of calls, for example runtime calls. This shall be\nfixed in a subsequent CL.\n\nTest: m test-art-host-gtest\nTest: testrunner.py --host --optimizing\nBug: 67717501\nChange-Id: I640fda7c22d4ff494b5ff77ebec3b7f5f75af652\n"
    },
    {
      "commit": "174b2e27ebf933b80f4e8b64b4b024ab4306aaac",
      "tree": "968cdd8d7fd68571115db77cc288807c3b257911",
      "parents": [
        "6783118d2ad9d759f0617b1219a9e29a10a569f7"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Oct 12 13:34:49 2017 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Oct 17 11:12:08 2017 +0100"
      },
      "message": "Use ScopedArenaAllocator for code generation.\n\nReuse the memory previously allocated on the ArenaStack by\noptimization passes.\n\nThis CL handles only the architecture-independent codegen\nand slow paths, architecture-dependent codegen allocations\nshall be moved to the ScopedArenaAllocator in a follow-up.\n\nMemory needed to compile the two most expensive methods for\naosp_angler-userdebug boot image:\n  BatteryStats.dumpCheckinLocked() : 19.6MiB -\u003e 18.5MiB (-1189KiB)\n  BatteryStats.dumpLocked(): 39.3MiB -\u003e 37.0MiB (-2379KiB)\n\nAlso move definitions of functions that use bit_vector-inl.h\nfrom bit_vector.h also to bit_vector-inl.h .\n\nTest: m test-art-host-gtest\nTest: testrunner.py --host --optimizing\nBug: 64312607\nChange-Id: I84688c3a5a95bf90f56bd3a150bc31fedc95f29c\n"
    },
    {
      "commit": "69d310e0317e2fce97bf8c9c133c5c2c0332e61d",
      "tree": "fba05a1530e6fc4a2e6950303c1f7c6b0ffbb936",
      "parents": [
        "e764d2e50c544c2cb98ee61a15d613161ac6bd17"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Oct 09 14:12:23 2017 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Wed Oct 11 09:44:26 2017 +0100"
      },
      "message": "Use ScopedArenaAllocator for building HGraph.\n\nMemory needed to compile the two most expensive methods for\naosp_angler-userdebug boot image:\n  BatteryStats.dumpCheckinLocked() : 21.1MiB -\u003e 20.2MiB\n  BatteryStats.dumpLocked(): 42.0MiB -\u003e 40.3MiB\nThis is because all the memory previously used by the graph\nbuilder is reused by later passes.\n\nAnd finish the \"arena\"-\u003e\"allocator\" renaming; make renamed\nallocator pointers that are members of classes const when\nappropriate (and make a few more members around them const).\n\nTest: m test-art-host-gtest\nTest: testrunner.py --host\nBug: 64312607\nChange-Id: Ia50aafc80c05941ae5b96984ba4f31ed4c78255e\n"
    },
    {
      "commit": "e2abbc604ce003c776c00ecf1293796bb4c4ac5a",
      "tree": "f7d124d1861cad2162c30dfe932bb4e1beaf41ef",
      "parents": [
        "7090dfe84f78b1928fcbdfd664d0dd9ea52633ff"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Fri Sep 15 11:59:26 2017 -0700"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Mon Sep 18 11:36:24 2017 -0700"
      },
      "message": "ART: Move kDexNoIndex to dex_file_types.h\n\nDefine the constant with the types to allow lowering the dependency\non DexFile.\n\nTest: m\nChange-Id: I3c61421db45be96d2057e01b1a7825883d8bd178\n"
    },
    {
      "commit": "cbcedbf9382bc773713cd3552ed96f417bf1daeb",
      "tree": "58eed766a69ddddbc41d21624244e14547fa1dff",
      "parents": [
        "ef62210a1466c133056c4bfdae9f8f5417065eff"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Sun Mar 12 22:24:50 2017 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Mar 16 10:20:34 2017 -0700"
      },
      "message": "Add method info to oat files\n\nThe method info data is stored separately from the code info to\nreduce oat size by improving deduplication of stack maps.\n\nTo reduce code size, this moves the invoke info and inline info\nmethod indices to this table.\n\nOat size for a large app (arm64): 77746816 -\u003e 74023552 (-4.8%)\nAverage oat size reduction for golem (arm64): 2%\n\nRepurposed unused SrcMapElem deduping to be for MethodInfo.\nTODO: Delete SrcMapElem in a follow up CL.\n\nBug: 36124906\n\nTest: clean-oat-host \u0026\u0026 test-art-host-run-test\n\nChange-Id: I2241362e728389030b959f42161ce817cf6e2009\n"
    },
    {
      "commit": "d776ff08e07494327716f0d2ea1a774b2ebfbca9",
      "tree": "cedf874dd494d881adc572a10a9d14bca852add6",
      "parents": [
        "3fb852a88d2a8ffaa87089752f4b1d5f9d6ce3c1"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Jan 17 09:32:18 2017 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Feb 15 14:46:15 2017 -0800"
      },
      "message": "Add invoke infos to stack maps\n\nInvoke info records the invoke type and dex method index for invokes\nthat may reach artQuickResolutionTrampoline. Having this information\nrecorded allows the runtime to avoid reading the dex code and pulling\nin extra pages.\n\nCode size increase for a large app:\n93886360 -\u003e 95811480 (2.05% increase)\n\n1/2 of the code size increase is from making less stack maps deduped.\nI suspect there is less deduping because of the invoke info method\nindex.\n\nMerged disabled until we measure the RAM savings.\n\nTest: test-art-host, N6P boots\n\nBug: 34109702\n\nChange-Id: I6c5e4a60675a1d7c76dee0561a12909e4ab6d5d9\n"
    },
    {
      "commit": "3228908337fdfe851223f8ae374538de25cb5ad1",
      "tree": "8aeb504fe0ae10e1970201b0b326c3f82cfdc1ff",
      "parents": [
        "7a2a3407a8c0832a4683e103c8d9a7f0ddcb8d51"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Feb 09 15:57:37 2017 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Feb 13 15:37:04 2017 -0800"
      },
      "message": "Deduplicate register maps for both inline and normal stack maps\n\nBefore it only deduplicated the normal stack map dex register maps.\nCode size for a large app: 93341616 -\u003e 92678040 (-0.7%)\n\nAdded test.\n\nBug: 34621054\n\nTest: test-art-host\n\nChange-Id: I4fab4e40915bfa12cb978edbb3cbc19e2cf00954\n"
    },
    {
      "commit": "575d3e60c68b5cf481b615dde4a16283507b19ed",
      "tree": "4718f2747233e74268de21d804df9bfe0b7e4362",
      "parents": [
        "857acf51fbc5a931939c20e9e299c69676baf654"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Feb 06 11:00:40 2017 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Feb 08 09:51:27 2017 -0800"
      },
      "message": "Clean up code info table layout\n\nPreviously:\nTable layout was computed multiple places like stack_map_stream,\nand getters. This made it difficult to add new stack map tables and\nmade the code hard to understand.\n\nThis change makes the table layout specified all inside of the code\ninfo. Updating the layout only requires changing ComputeTableOffsets.\n\nChanged the stack map inline info offset to be an index, so that it is\nnot require the inline infos are directly after the dex register table.\n\nOat file size for a large app: 94459576 -\u003e 93882040 (-0.61%)\n\nUpdated oatdump and fixed a bug that was incorrectly computing the\nregister mask bytes.\n\nBug: 34621054\n\nTest: test-art-host\n\nChange-Id: I3a7f141e09d5a18bce2bc6c9439835244a22016e\n"
    },
    {
      "commit": "1a20b6801f2432a42b906f0de01e7e9586526aec",
      "tree": "ae3faaf42a2b560601fc024ae16898a5dfa42261",
      "parents": [
        "357dcb73934356239292c46d6fbedba734da5e00"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Jan 31 14:25:16 2017 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Feb 01 12:46:43 2017 -0800"
      },
      "message": "Deduplicate register masks\n\nData is commonly shared between different stack maps. The register\nmasks are stored after the stack masks.\n\nOat size for a large app:\n96722288 -\u003e 94485872 (-2.31%)\n\nAverage oat size reduction according to golem -3.193%.\n\nBug: 34621054\n\nTest: test-art-host\n\nChange-Id: I5eacf668992e866d11ddba0c01675038a16cdfb4\n"
    },
    {
      "commit": "45aa598cd1773f5eb1705dec13bea059238e054d",
      "tree": "f5a6fd7445a74218547cd6c4e28dc835821c355e",
      "parents": [
        "f2042db1b41cc21cc540c5ad7d353cbe1e3a32df"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Mar 18 02:15:09 2016 +0000"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Jan 31 10:15:26 2017 -0800"
      },
      "message": "Deduplicate stack masks\n\nThe stack masks repeat often enough so that it is worth deduplicating\nthem.\n\nOat size for a large app:\n98143600 -\u003e 96722288 (-1.44%)\n\nBug: 34621054\n\nTest: test-art-host\nChange-Id: If73d51e46066357049d5be2e406ae9a32b7ff1f4\n"
    },
    {
      "commit": "a2f526f889be06f96ea59624c9dfb1223b3839f3",
      "tree": "769f517e6664de0e89abeadf07a39d5410fcee42",
      "parents": [
        "64e50021845b1ad9d8851596e8aaddf18be217c2"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jan 19 14:48:48 2017 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Jan 20 15:47:06 2017 -0800"
      },
      "message": "Compressed native PC for stack maps\n\nCompress native PC based on instruction alignment. This reduces the\nsize of stack maps, boot.oat is 0.4% smaller for arm64.\n\nTest: test-art-host, test-art-target, N6P booting\n\nChange-Id: I2b70eecabda88b06fa80a85688fd992070d54278\n"
    },
    {
      "commit": "5d37c152f21a0807459c6f53bc25e2d84f56d259",
      "tree": "7d8cbce0a55f258150a047def70244f79afc866d",
      "parents": [
        "aa89a4c6fca095904521842c018399f1e3501a45"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Thu Jan 12 13:25:19 2017 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Jan 16 22:56:56 2017 +0000"
      },
      "message": "Put inlined ArtMethod pointer in stack maps.\n\nCurrently done for JIT. Can be extended for AOT and inlined boot\nimage methods.\n\nAlso refactor the lookup of a inlined method at runtime to not\nrely on the dex cache, but look at the class loader tables.\n\nbug: 30933338\ntest: test-art-host, test-art-target\nChange-Id: I58bd4d763b82ab8ca3023742835ac388671d1794\n"
    },
    {
      "commit": "87f3fcbd0db352157fc59148e94647ef21b73bce",
      "tree": "5bdeabb246f5de86704333b3fcbccc6e9146d246",
      "parents": [
        "b94b5706f0b8e2e1c7e1db22274f9f4bae0c4b5a"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Apr 28 15:52:11 2016 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Jun 21 15:17:38 2016 +0100"
      },
      "message": "Replace String.charAt() with HIR.\n\nReplace String.charAt() with HArrayLength, HBoundsCheck and\nHArrayGet. This allows GVN on the HArrayLength and BCE on\nthe HBoundsCheck as well as using the infrastructure for\nHArrayGet, i.e. better handling of constant indexes than\nthe old intrinsic and using the HArm64IntermediateAddress.\n\nBug: 28330359\nChange-Id: I32bf1da7eeafe82537a60416abf6ac412baa80dc\n"
    },
    {
      "commit": "61b28a17d9b6e8e998103646e98e4a9772e11927",
      "tree": "438c4a73f72423ddc71e6dca9f082d9e1d533996",
      "parents": [
        "cf0f8560f41467331427418584687830932e66ed"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Feb 25 21:55:03 2016 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Apr 01 17:01:55 2016 +0100"
      },
      "message": "Use bit-level packing for InlineInfo in stackmaps as well.\n\nUse the same approach as we do for stackmaps to reduce the size.\n\nIt saves 4.0 MB from non-debuggable boot.oat (AOSP).\nIt does not affect debuggable boot.oat.\n\nIt saves 3.6 MB (of 96.6 MB) from /system/framework/arm/ (GOOG).\nIt saves 0.6 MB (of 26.7 MB) from /system/framework/oat/arm/ (GOOG).\n\nField loads from inline-info get around 5% slower.\n(based on the time it takes to load all inline-infos from boot.oat)\n\nChange-Id: I67b0fa5eef74c1fdb013680d0231fd44ea696176\n"
    },
    {
      "commit": "09ed09866da6d8c7448ef297c148bfa577a247c2",
      "tree": "dad6a5dae6ca6131f1eba201eaa371edc6d9929d",
      "parents": [
        "e28ad4b91591c226ed404a2b01104bb99bfeb28f"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Fri Feb 12 21:58:43 2016 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Mar 31 22:12:07 2016 +0100"
      },
      "message": "Pack stack map entries on bit level to save space.\n\nUse only the minimum number of bits required to store stack map data.\nFor example, if native_pc needs 5 bits and dex_pc needs 3 bits, they\nwill share the first byte of the stack map entry.\n\nThe header is changed to store bit offsets of the fields rather than\nbyte sizes. Offsets also make it easier to access later fields without\ncalculating sum of all previous sizes.\n\nAll of the header fields are byte sized or encoded as ULEB128 instead\nof the previous fixed size encoding. This shrinks it by about half.\n\nIt saves 3.6 MB from non-debuggable boot.oat (AOSP).\nIt saves 3.1 MB from debuggable boot.oat (AOSP).\n\nIt saves 2.8 MB (of 99.4 MB) from /system/framework/arm/ (GOOG).\nIt saves 1.0 MB (of 27.8 MB) from /system/framework/oat/arm/ (GOOG).\n\nField loads from stackmaps seem to get around 10% faster.\n(based on the time it takes to load all stackmap entries from boot.oat)\n\nBug: 27640410\nChange-Id: I8bf0996b4eb24300c1b0dfc6e9d99fe85d04a1b7\n"
    },
    {
      "commit": "1bbdfd73a98b149c31f8a80888c7ee9ab2587630",
      "tree": "f23816b520fd4b2a9b47642ac16bf37c5cec512f",
      "parents": [
        "7dc11782ff0a5dffcd8108f256f8975f0b3e8076"
      ],
      "author": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Wed Feb 24 16:39:26 2016 +0000"
      },
      "committer": {
        "name": "David Srbecky",
        "email": "dsrbecky@google.com",
        "time": "Thu Feb 25 14:40:21 2016 +0000"
      },
      "message": "Verify encoded stack maps in debug builds.\n\nRead all stack map data back after we write it and DCHECK the content.\n\nChange-Id: Ia679594ac9e5805f6d4c56686030af153b45ea8b\n"
    },
    {
      "commit": "1f49764f7d62b2f80ce3418234a5036a59b2b762",
      "tree": "7dfe677cdf802ae381484a525129024c44315dcb",
      "parents": [
        "80d3f4f00e2494f0311f04e8379497ec75376d46"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Oct 05 20:34:42 2015 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Fri Oct 09 12:31:35 2015 +0100"
      },
      "message": "ART: Use arena allocator with HashSet/HashMap.\n\nAllow passing ArenaAllocatorAdapter (or any other allocator)\nto HashSet/HashMap and create appropriate Arena- aliases.\nUse the ArenaHashMap in StackMapsStream.\n\nUpdate arena allocator adapters\u0027 construct()/destroy() to\nC++11 std::allocator\u003c\u003e API.\n\nChange-Id: I18544f718f84c6d6580228dd35297daf7f6afb5e\n"
    },
    {
      "commit": "ec7802a102d49ab5c17495118d4fe0bcc7287beb",
      "tree": "08649609604b9c96bc48ca071c48b0af5abb1a3f",
      "parents": [
        "b2e436ffcda1d7a87e7bf9133d8ed878388c73c2"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Oct 01 20:57:57 2015 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Thu Oct 08 11:10:18 2015 +0100"
      },
      "message": "Add DCHECKs to ArenaVector and ScopedArenaVector.\n\nImplement dchecked_vector\u003c\u003e template that DCHECK()s element\naccess and insert()/emplace()/erase() positions. Change the\nArenaVector\u003c\u003e and ScopedArenaVector\u003c\u003e aliases to use the new\ntemplate instead of std::vector\u003c\u003e. Remove DCHECK()s that\nhave now become unnecessary from the Optimizing compiler.\n\nChange-Id: Ib8506bd30d223f68f52bd4476c76d9991acacadc\n"
    },
    {
      "commit": "225b6464a58ebe11c156144653f11a1c6607f4eb",
      "tree": "3f1c6067c3841c892edaa1a60a61af9c559cb4e4",
      "parents": [
        "6a9984e62c08bcd78c8e49dd40b1f0f9d53513b7"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Sep 28 12:17:40 2015 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Sep 29 10:49:35 2015 +0100"
      },
      "message": "Optimizing: Tag arena allocations in code generators.\n\nAnd completely remove the deprecated GrowableArray.\n\nReplace GrowableArray with ArenaVector in code generators\nand related classes and tag arena allocations.\n\nLabel arrays use direct allocations from ArenaAllocator\nbecause Label is non-copyable and non-movable and as such\ncannot be really held in a container. The GrowableArray\nnever actually constructed them, instead relying on the\nzero-initialized storage from the arena allocator to be\ncorrect. We now actually construct the labels.\n\nAlso avoid StackMapStream::ComputeDexRegisterMapSize() being\npassed null references, even though unused.\n\nChange-Id: I26a46fdd406b23a3969300a67739d55528df8bf4\n"
    },
    {
      "commit": "2a5c4681ba19411c1cb22e9a7ab446dab910af1c",
      "tree": "883ea0c07aad9efdb7c86960056cbefd7992b2bc",
      "parents": [
        "228b3973b2b24783c727a55fda2b4b80375f7207"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Fri Aug 14 08:22:54 2015 -0700"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Mon Aug 17 15:42:25 2015 -0700"
      },
      "message": "ART: Some header cleaning around bit-utils\n\nTry to remove dependencies where they are not necessary.\n\nChange-Id: I5ff35cb17aea369bed3725b1610b50d7eb05b81e\n"
    },
    {
      "commit": "cf93a5cd9c978f59113d42f9f642fab5e2cc8877",
      "tree": "55162627fcbf2cb7913a735c7ed89e8e4b5e84d7",
      "parents": [
        "db40ea768bd914125c3754dacb9b6f534a2e2399"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Jun 16 11:33:24 2015 +0000"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Wed Jun 17 09:43:51 2015 +0100"
      },
      "message": "Revert \"Revert \"ART: Implement literal pool for arm, fix branch fixup.\"\"\n\nThis reverts commit fbeb4aede0ddc5b1e6a5a3a40cc6266fe8518c98.\n\nAdjust block label positions. Bad catch block labels were the\nreason for the revert.\n\nChange-Id: Ia6950d639d46b9da6b07f3ade63ab46d03d63310\n"
    },
    {
      "commit": "fbeb4aede0ddc5b1e6a5a3a40cc6266fe8518c98",
      "tree": "76ab28cf259def4dccec529df217fd760f27d2aa",
      "parents": [
        "f38caa68cce551fb153dff37d01db518e58ed00f"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Jun 16 11:32:01 2015 +0000"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Tue Jun 16 11:32:01 2015 +0000"
      },
      "message": "Revert \"ART: Implement literal pool for arm, fix branch fixup.\"\n\nThis reverts commit f38caa68cce551fb153dff37d01db518e58ed00f.\n\nChange-Id: Id88b82cc949d288cfcdb3c401b96f884b777fc40\nReason: broke the tests.\n"
    },
    {
      "commit": "f38caa68cce551fb153dff37d01db518e58ed00f",
      "tree": "723612f20666f429b7c67321f0353d57425b1c63",
      "parents": [
        "bd8c725e465cc7f44062745a6f2b73248f5159ed"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Fri May 29 15:50:18 2015 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Mon Jun 15 15:13:28 2015 +0100"
      },
      "message": "ART: Implement literal pool for arm, fix branch fixup.\n\nChange-Id: Iecc91418bb4ee1c957f42fefb737d0ee2ba960e7\n"
    },
    {
      "commit": "bd8c725e465cc7f44062745a6f2b73248f5159ed",
      "tree": "76ab28cf259def4dccec529df217fd760f27d2aa",
      "parents": [
        "6a1c92f1e4a455d802ab0d0ac47504cdd7c12f0f"
      ],
      "author": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Fri Jun 12 10:06:32 2015 +0100"
      },
      "committer": {
        "name": "Vladimir Marko",
        "email": "vmarko@google.com",
        "time": "Fri Jun 12 10:28:34 2015 +0100"
      },
      "message": "Optimizing: Remove PcInfo, use the StackMapStream instead.\n\nChange-Id: I474f3a89f6c7ee5c7accd21791b1c1e311104158\n"
    },
    {
      "commit": "f677ebfd832c9c614fea5e6735725fec2f7a3f2a",
      "tree": "051b3ba6343bdbca4929d728dd5c0341e4383a08",
      "parents": [
        "c47908e8c32fd58bc4dc75998a80f706954db1dc"
      ],
      "author": {
        "name": "David Brazdil",
        "email": "dbrazdil@google.com",
        "time": "Fri May 29 16:29:43 2015 +0100"
      },
      "committer": {
        "name": "David Brazdil",
        "email": "dbrazdil@google.com",
        "time": "Thu Jun 04 17:25:02 2015 +0100"
      },
      "message": "Cache stack map encoding\n\nOperations on CodeInfo and StackMap objects repeatedly read encoding\ninformation from the MemoryRegion. Since these are 3-bit-loads of\nvalues that never change, caching them can measurably reduce compile\ntimes.\n\nAccording to benchmarks, this patch saves 1-3% on armv7, 2-4% on x86,\nand 0-1% on x64.\n\nChange-Id: I46b197513601325d8bab562cc80100c00ec28a3b\n"
    },
    {
      "commit": "b176d7c6c8c01a50317f837a78de5da57ee84fb2",
      "tree": "81ec0c16267c527bdc64923b374be915206e6af9",
      "parents": [
        "713c59e813daa92da3f1678add6c4c7e16dcff11"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed May 20 18:48:31 2015 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Thu May 21 12:10:00 2015 +0100"
      },
      "message": "Also encode the InvokeType in an InlineInfo.\n\nThis will be needed to recover the call stack.\n\nChange-Id: I2fe10785eb1167939c8cce1862b2d7f4066e16ec\n"
    },
    {
      "commit": "b1d0f3f7e92fdcc92fe2d4c48cbb1262c005583f",
      "tree": "0e3ce752f82ff5d7f10d37d46bda058ca54d7e40",
      "parents": [
        "119b21a6dfdb09d983a9e56a837fbf5c98e57096"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Thu May 14 12:41:51 2015 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon May 18 13:00:29 2015 +0100"
      },
      "message": "Support InlineInfo in StackMap.\n\nChange-Id: I9956091775cedc609fdae7dec1433fcb8858a477\n"
    },
    {
      "commit": "4f46ac5179967dda5966f2dcecf2cf08977951ef",
      "tree": "4c9ea50d9a135767c6e9a4abcf9b9c401a033414",
      "parents": [
        "4ceed922d44b68c3fa7cbe670014c9e2e003b92b"
      ],
      "author": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Thu Apr 23 18:47:21 2015 +0100"
      },
      "committer": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Thu Apr 23 19:58:22 2015 +0100"
      },
      "message": "Cleanup and improve stack map stream\n\n- transform AddStackMapEntry into BeginStackMapEntry/EndStackMapEntry.\nThis allows for nicer code and less assumptions when searching for equal\ndex register maps.\n- store the components sizes and their start positions as fields to\navoid re-computation.\n- store the current stack map entry as a field to avoid the copy\nsemantic when updating its value in the stack maps array.\n- remove redundant methods and fix visibility for the remaining ones.\n\nChange-Id: Ica2d2969d7e15993bdbf8bc41d9df083cddafd24\n"
    },
    {
      "commit": "c416d3359179b0ec6152104db8240f4d11c54bc7",
      "tree": "82bdb3eb5bb3ebeba82647f8c8a3e3786bebe1b0",
      "parents": [
        "edad8add1f1216850cb3f179ba6f57b0d885b016"
      ],
      "author": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Thu Apr 23 16:01:43 2015 +0100"
      },
      "committer": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Thu Apr 23 16:03:05 2015 +0100"
      },
      "message": "Move stack map stream implementation to its own cc file.\n\nIt\u0027s big enough now to separate the implementation from the header.\n\nIt also enables faster compilation time for experiments.\n\nChange-Id: Ica0c72994d5e461c62c32628010f46f9e5c46b57\n"
    },
    {
      "commit": "c9d185d2b4ac045840586d3a890eab61c922379f",
      "tree": "fcd621ffa8bd526ab6eddc372d951102aa4a1ec0",
      "parents": [
        "e50dffa29fb6c67eba44e267aa890d35712de9dd"
      ],
      "author": {
        "name": "Dan Albert",
        "email": "danalbert@google.com",
        "time": "Thu Apr 16 11:54:24 2015 -0700"
      },
      "committer": {
        "name": "Dan Albert",
        "email": "danalbert@google.com",
        "time": "Fri Apr 17 10:23:55 2015 -0700"
      },
      "message": "Fix undefined behavior in hash calculation.\n\ndex_register might be \u003e\u003d the width of the map hash. Shifting by that\nvalue would be undefined behavior. Constrain the value to within the\nvalid range.\n\nChange-Id: I9037c5c7ec554850ba3385585aca96fde1d50387\n"
    },
    {
      "commit": "896f8f7fe562f6e59119cb32531da9f0a5f13d18",
      "tree": "9f2b61474702a655ab5e793bac44d89612cf1b80",
      "parents": [
        "7411a69982c055692966c685636b6a226f10215e"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Mar 30 15:44:25 2015 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Mar 31 15:32:48 2015 +0100"
      },
      "message": "Use variable encoding for StackMap.\n\ndex_pc, native_pc_offset, dex_register_map_offset, inline_info_offset,\nand register_mask can now be encoded in 1, 2, 3, or 4 bytes.\n\nChange-Id: I15f93e8226ce374204d44c5a80a9fd89bda2687c\n"
    },
    {
      "commit": "a552e1c0584b8ab63150510286478c68cdbce13f",
      "tree": "c9c66b3d6bf001491ddd6a59d16d345d5656db8f",
      "parents": [
        "ba6233527e455368bba02efe963dd1e24d971727"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Thu Mar 26 15:01:03 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Tue Mar 31 12:47:33 2015 +0100"
      },
      "message": "Use unique location catalogs to encode Dex register maps.\n\n- For each CodeInfo object (i.e. for each method), compute a\n  variable index size location catalog  of unique Dex\n  register locations.  In Dex register maps, instead of\n  storing the actual location of a (live) Dex register,\n  store the index of the location catalog entry containing\n  that Dex register location.\n- Adjust art::StackMapStream,\n  art::CheckReferenceMapVisitor::CheckOptimizedMethod,\n  art::StackVisitor::GetVRegFromOptimizedCode, and\n  art::StackVisitor::SetVRegFromOptimizedCode.\n- Add LoadBits and StoreBits methods to art::MemoryRegion\n  to load and store a block of adjacent bits in a memory\n  region.\n- Update compiler/optimizing/stack_map_test.cc.\n- Remove the default value for parameter EmptyFn of\n  art::HashMap.  This default value did not seem to make\n  sense, as it would create an \"empty function\" for type Key\n  by default, whereas art::HashMap expects an \"empty\n  function\" for type std::pair\u003cKey, Value\u003e.\n\nChange-Id: Id9e49d7756c253ce41c36630cd832208d06c2e28\n"
    },
    {
      "commit": "6ae70962089e4af9718cc9b7c2b79a0c501c1844",
      "tree": "3b7cd46ed7c7bab95dc258a29883297738138f6c",
      "parents": [
        "2f5904383a7b7ffb741c8839ec3c60762860bad3"
      ],
      "author": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Wed Mar 18 16:31:28 2015 +0000"
      },
      "committer": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Wed Mar 25 13:50:23 2015 +0000"
      },
      "message": "Share dex register maps between stack maps when possible.\n\nIf two stack maps have the same dex register map then one of them will\nreference the register map from the other instead of owning an\nindependent copy.\n\nThis saves around 1.5% of space.\n\nChange-Id: Ic2c2c81210c6c45a5c5f650f7ba82a46ff6f45e4\n"
    },
    {
      "commit": "004c230b4cfc856690c61faabc41864061813c88",
      "tree": "40d95445eaa2eb248fa639755689c797a5e0c2ae",
      "parents": [
        "735dc87c92bee338d0638b3290c2b93a122429f2"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Fri Mar 20 10:06:38 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Fri Mar 20 14:55:15 2015 +0000"
      },
      "message": "Compress the StackMaps.\n\nFirst step towards the compression of the StackMap (not\nthe DexRegisterMap). Next step will be to just use what is\nneeded (instead of byte -\u003e word).\n\nChange-Id: I4f81b2d05bf5cc508585e16fbbed1bafbc850e2e\n"
    },
    {
      "commit": "aec8f930571ce10d6ce9a4249c45866a7f213397",
      "tree": "6514b8af90323a20282f3afe78812cce7535c7df",
      "parents": [
        "696005b00575fa53c91f3baabd4e85d543df4df8"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Mar 18 10:42:22 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Mar 18 10:43:37 2015 +0000"
      },
      "message": "StackMap: Always load and store unalign.\n\nNow that we can have a mix of Quick and Optimized code in an .oat\nfile, a CodeInfo object is not necessarily word aligned.\n\nChange-Id: Ic6c5d1a2c6e20363436726a0708b0764b5a76caf\n"
    },
    {
      "commit": "eeefa1276e83776f08704a3db4237423b0627e20",
      "tree": "d7c647ca77703f3712f567704f40b00d59a125de",
      "parents": [
        "02c0bac34c246c1bd974dbb86d292d4b52ba98e4"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Fri Mar 13 18:52:59 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Mar 16 10:48:21 2015 +0000"
      },
      "message": "Update locations of registers after slow paths spilling.\n\nChange-Id: Id9aafcc13c1a085c17ce65d704c67b73f9de695d\n"
    },
    {
      "commit": "fead4e4f397455aa31905b2982d4d861126ab89d",
      "tree": "21e4ccd99472bbf5cf1fac3bc20d0bca6f176022",
      "parents": [
        "cc22e3946baf035c8732e9417ab132bfe663aa45"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Fri Mar 13 14:39:40 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Fri Mar 13 18:28:19 2015 +0000"
      },
      "message": "[optimizing] Don\u0027t record None locations in the stack maps.\n\n- moved environment recording from code generator to stack map stream\n- added creation/loading factory methods for the DexRegisterMap (hides\ninternal details)\n- added new tests\n\nChange-Id: Ic8b6d044f0d8255c6759c19a41df332ef37876fe\n"
    },
    {
      "commit": "ede7bf8a5cef965974e7c1edcf46a41fbe50a49d",
      "tree": "7f99657bd4f8591f7cf463c1a197e1a7575abab6",
      "parents": [
        "63346f57e2327894ce6c1e28e3d00342177538a6"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Fri Mar 13 12:23:04 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Fri Mar 13 12:54:45 2015 +0000"
      },
      "message": "Align CodeInfo regions instead of their inner subregions.\n\nInstead of word-aligning every stack map region, as well as\nthe Dex register maps region of a CodeInfo object, just\nalign the whole CodeInfo region itself.\n\nChange-Id: Ia35d213d2bd184729aa0d048874c76f7bc6da0f6\n"
    },
    {
      "commit": "29ba1b068fc9f5a8011782c147b1f7732928aac7",
      "tree": "5b61289b1e135cce6f01e8c9cbcaa747a39f196c",
      "parents": [
        "d9a59ca8f038a0f93a4e1504e0f7f8f388848719"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Fri Mar 13 11:45:07 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Fri Mar 13 12:28:43 2015 +0000"
      },
      "message": "Fix the computation of the size of the stack maps region.\n\nIn art::StackMapStream::ComputeStackMapSize, compute the\nsize of a CodeInfo\u0027s stack maps region using the stack\nmask size, not the maximum element of the stack mask.\nAlso, rename this method as\nart::StackMapStream::ComputeStackMapsSize to make it clear\nit that it covers all the stack maps of the CodeInfo item,\nnot just one stack map.\n\nChange-Id: Icad21946dbca6e1ade2b82c9c2c535fdfed110a9\n"
    },
    {
      "commit": "9ac0e4d4ed1b45cf8767ef1d339afcdd205bf55a",
      "tree": "f5a53e3e10a138b4b301d60f9abc1011e945bda5",
      "parents": [
        "4054413950cbee5d304a7c29f08c21fb33d33d08"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Thu Mar 12 18:33:05 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Thu Mar 12 18:33:19 2015 +0000"
      },
      "message": "Force word alignment of Dex register maps.\n\nPlus some cosmetic changes.\n\nChange-Id: I45e805aa87c2ef8fe8907eaae726cd2188b54897\n"
    },
    {
      "commit": "a2d8ec6876325e89e5d82f5dbeca59f96ced3ec1",
      "tree": "65bf174b669ff3cd9694dc5a1124fb9f2225ade1",
      "parents": [
        "39d9fe2eb3552a002c53ed41701c6faffe3cd75a"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Thu Mar 12 15:25:29 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Thu Mar 12 15:25:29 2015 +0000"
      },
      "message": "Compress the Dex register maps built by the optimizing compiler.\n\n- Replace the current list-based (fixed-size) Dex register\n  encoding in stack maps emitted by the optimizing compiler\n  with another list-based variable-size Dex register\n  encoding compressing short locations on 1 byte (3 bits for\n  the location kind, 5 bits for the value); other (large)\n  values remain encoded on 5 bytes.\n- In addition, use slot offsets instead of byte offsets to\n  encode the location of Dex registers placed in stack\n  slots at small offsets, as it enables more values to use\n  the short (1-byte wide) encoding instead of the large\n  (5-byte wide) one.\n- Rename art::DexRegisterMap::LocationKind as\n  art::DexRegisterLocation::Kind, turn it into a\n  strongly-typed enum based on a uint8_t, and extend it to\n  support new kinds (kInStackLargeOffset and\n  kConstantLargeValue).\n- Move art::DexRegisterEntry from\n  compiler/optimizing/stack_map_stream.h to\n  runtime/stack_map.h and rename it as\n  art::DexRegisterLocation.\n- Adjust art::StackMapStream,\n  art::CodeGenerator::RecordPcInfo,\n  art::CheckReferenceMapVisitor::CheckOptimizedMethod,\n  art::StackVisitor::GetVRegFromOptimizedCode, and\n  art::StackVisitor::SetVRegFromOptimizedCode.\n- Implement unaligned memory accesses in art::MemoryRegion.\n- Use them to manipulate data in Dex register maps.\n- Adjust oatdump to support the new Dex register encoding.\n- Update compiler/optimizing/stack_map_test.cc.\n\nChange-Id: Icefaa2e2b36b3c80bb1b882fe7ea2f77ba85c505\n"
    },
    {
      "commit": "442b46a087c389a91a0b51547ac9205058432364",
      "tree": "4efa4b4da919dd7b9aa18996a5316febcf1c8989",
      "parents": [
        "aa9b7c48069699e2aabedc6c0f62cb131fee0c73"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Wed Feb 18 16:54:21 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Thu Feb 19 12:13:09 2015 +0000"
      },
      "message": "Display optimizing compiler\u0027s CodeInfo objects in oatdump.\n\nA few elements are not displayed yet (stack mask, inline info) though.\n\nChange-Id: I5e51a801c580169abc5d1ef43ad581aadc110754\n"
    },
    {
      "commit": "376b2bbf7c39108223a7a01568a7b4b04d84eeac",
      "tree": "f6fdbe6180c3d330bc24aa35a7d9fa51f3eb1c55",
      "parents": [
        "b1a38e246cfbfb21100d9c9e57f33970e824f075"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Dec 09 14:26:32 2014 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Dec 09 14:49:02 2014 +0000"
      },
      "message": "Ensure stack maps are 4 byte aligned.\n\nWith the recent move to gcc 4.9, we are hitting alignment\nSIGBUS on ARM. The reason is that gcc will optimize two consecutive\n32bits loads into one 64bits load, and the instruction (ldrd)\nwill fail if the data is not aligned.\n\nAlso removed the emission of mapping table when a method is optimized.\nThe information can be found in the StackMap itself.\n\nChange-Id: Icf79406c18a3f4db3c05d52fc2c0dd2e35bf0f8f\n"
    },
    {
      "commit": "277ccbd200ea43590dfc06a93ae184a765327ad0",
      "tree": "d89712e93da5fb2748989353c9ee071102cf3f33",
      "parents": [
        "ad17d41841ba1fb177fb0bf175ec0e9f5e1412b3"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Mon Nov 03 21:36:10 2014 -0800"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Tue Nov 04 18:40:08 2014 -0800"
      },
      "message": "ART: More warnings\n\nEnable -Wno-conversion-null, -Wredundant-decls and -Wshadow in general,\nand -Wunused-but-set-parameter for GCC builds.\n\nChange-Id: I81bbdd762213444673c65d85edae594a523836e5\n"
    },
    {
      "commit": "0279ebb3efd653e6bb255470c99d26949c7bcd95",
      "tree": "d58b29754f7b3c88616e6e4d6c19346821d244ae",
      "parents": [
        "f1f05d303988a5c071c87b760056be8358276c94"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed Oct 08 17:27:48 2014 -0700"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Thu Oct 09 08:25:34 2014 -0700"
      },
      "message": "Tidy ELF builder.\n\nDon\u0027t do \"if (ptr)\". Use const. Use DISALLOW_COPY_AND_ASSIGN. Avoid public\nmember variables.\nMove ValueObject to base and use in ELF builder.\nTidy VectorOutputStream to not use non-const reference arguments.\n\nChange-Id: I2c727c3fc61769c3726de7cfb68b2d6eb4477e53\n"
    },
    {
      "commit": "3946844c34ad965515f677084b07d663d70ad1b8",
      "tree": "0d85bfba2ff69c34a2897351d1e50a1464509305",
      "parents": [
        "e2c23739c6395a83b30ece38f8a2e9e1bf7cf3ce"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Sep 02 15:17:15 2014 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Sep 08 12:15:07 2014 +0100"
      },
      "message": "Runtime support for the new stack maps for the opt compiler.\n\nNow most of the methods supported by the compiler can be optimized,\ninstead of using the baseline.\n\nChange-Id: I80ab36a34913fa4e7dd576c7bf55af63594dc1fa\n"
    },
    {
      "commit": "8eddd2a379e1d3c76b22f40d3d4387d12ed1a8d1",
      "tree": "d265344c32c5bf37d356fcb4871f57a1250d16b6",
      "parents": [
        "daa31c58ec2fec209f8fdc383bf10dd2e2c64512"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Mon Jul 28 14:53:22 2014 -0700"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Mon Jul 28 14:53:49 2014 -0700"
      },
      "message": "ART: Fix missing initialization in stack_map_stream.h\n\nFixes stack_map_test.\n\nChange-Id: Ibd6659b589ec595a7af21ad3d727c0ab2dceb45c\n"
    },
    {
      "commit": "99ea58cc68b51837c065f4a2a54efbf208dd76fa",
      "tree": "065c1335213b0bff5c3fb7a0dc79785f77441c9f",
      "parents": [
        "b5a214105d4c9b6c14de1649764950dd35bd620f"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Jul 02 15:08:17 2014 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Jul 21 12:47:27 2014 +0100"
      },
      "message": "Add a new stack map scheme that encodes compilation info per pc.\n\nEncodes stack mask, register mask, dex register values, and inlining\ninfo. The encoding is currently very straightforward: there is no\nclever encoding, nor compression.\n\nChange-Id: I5fd9ae28189a5513cd9e3c8d52c648463207643d\n"
    }
  ]
}
