)]}'
{
  "log": [
    {
      "commit": "a4f8831d6533e4fe5aed18433099e1130d95a877",
      "tree": "914c97dd322f59b282f01ca5659a960609e0aa0b",
      "parents": [
        "e015a31e509c3f4de8a90b57b77329ba6609ce2f"
      ],
      "author": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Thu Apr 16 12:57:19 2015 +0100"
      },
      "committer": {
        "name": "Calin Juravle",
        "email": "calin@google.com",
        "time": "Thu Apr 16 16:48:25 2015 +0100"
      },
      "message": "Remove duplicates phis created during SSA transformation\n\nWhen creating equivalent phis we copy the inputs of the original phi\nwhich may be improperly typed. This will be fixed during the type\npropagation but as a result we may have two equivalent phis with the\nsame type for the same dex register. This is correct but generates more\ncode and prevent some optimizations.\n\nThis CL adds another step in the SSA builder to remove the extra Phi\nnodes created due to equality operators.\n\nThe graph checker verifies that for a given dex register not two phis\nhave the same type.\n\nAlso, replace zero int constant with null constant when we compare a\nreference against null.\n\nChange-Id: Id37cc11a016ea767c7e351575e003d822a9d2e60\n"
    },
    {
      "commit": "8d5b8b295930aaa43255c4f0b74ece3ee8b43a47",
      "tree": "c26fc49bbc74615e7f0b9657aaf3757a8282d7a9",
      "parents": [
        "c8924c6ea9e83ba3832dd5551df38ab06f4aaca9"
      ],
      "author": {
        "name": "David Brazdil",
        "email": "dbrazdil@google.com",
        "time": "Tue Mar 24 10:51:52 2015 +0000"
      },
      "committer": {
        "name": "David Brazdil",
        "email": "dbrazdil@google.com",
        "time": "Thu Mar 26 14:10:03 2015 +0000"
      },
      "message": "ART: Force constants into the entry block\n\nOptimizations such as GVN and BCE make the assumption that all\nconstants are located in the entry block of the CFG, but not all\npasses adhere to this rule.\n\nThis patch makes constructors of constants private and only accessible\nto friend classes - HGraph for int/long constants and SsaBuilder for\nfloat/double - which ensure that they are placed correctly and not\nduplicated.\n\nNote that the ArenaAllocatorAdapter was modified to not increment\nthe ArenaAllocator\u0027s internal reference counter in order to allow\nfor use of ArenaSafeMap inside an arena-allocated objects. Because\ntheir destructor is not called, the counter does not get decremented.\n\nChange-Id: I36a4fa29ae34fb905cdefd482ccbf386cff14166\n"
    },
    {
      "commit": "915b9d0c13bb5091875d868fbfa551d7b65d7477",
      "tree": "63822d7081b0da33ccda2019dd52025f0ecedb35",
      "parents": [
        "bf5565a75876a84c8c2401df597d922a7870a8f2"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Mar 11 15:11:19 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Thu Mar 12 17:55:01 2015 +0000"
      },
      "message": "Tweak liveness when instructions are used in environments.\n\nInstructions remain live when debuggable, but only instructions\nwith object types remain live when non-debuggable.\n\nEnable StackVisitor::GetThisObject for optimizing.\n\nChange-Id: Id87b2cbf33a02450059acc9993995782e5f28987\n"
    },
    {
      "commit": "e0fe7ae36180863e45cbb9d1e6e9c30b1b1a949c",
      "tree": "26269a55f16d8bee5b5898318fa18491fd72061c",
      "parents": [
        "3dd536ffd7e8f82e4587964545b272acbd61d68e"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Mar 09 10:02:49 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Mar 10 16:20:35 2015 +0000"
      },
      "message": "Make the SSA builder honor the debuggable flag.\n\nThis requires to properly type phis that are only\nused by environments, and discard phis with incomptable types.\nThe code generators do not handle these conflicting types. In\nthe process, ensure a phi has a type that does not depend\non the order of the inputs (for example (char, short) -\u003e short),\nand set int for int-like types. We can refine this later.\n\nChange-Id: I60ab601d6d00b1cbf18623ee4ff1795aa28f84a1\n"
    },
    {
      "commit": "7c3952f423b8213083d60596a5f0bf4237ca3f7b",
      "tree": "40cbc6d30e02ab5edd8598d0f811b62f5c6045ba",
      "parents": [
        "354d58ba776866ea7b1c71f0d0848d5aaa013ae3"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Thu Feb 19 18:21:24 2015 -0800"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Tue Feb 24 15:57:15 2015 -0800"
      },
      "message": "ART: Add -Wunused\n\nUntil the global CFLAGS are fixed, add Wunused. Fix declarations\nin the optimizing compiler.\n\nChange-Id: Ic4553f08e809dc54f3d82af57ac592622c98e000\n"
    },
    {
      "commit": "d6138ef1ea13d07ae555542f8898b30d89e9ac9a",
      "tree": "a8ffd5fd966512fd280bc1b3214f4e57a9e1805f",
      "parents": [
        "92095533ac28879ddd8b44b559d700527ca12b8a"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Feb 18 14:48:53 2015 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Thu Feb 19 14:01:18 2015 +0000"
      },
      "message": "Ensure the graph is correctly typed.\n\nWe used to be forgiving because of HIntConstant(0) also being\nused for null. We now create a special HNullConstant for such uses.\n\nAlso, we need to run the dead phi elimination twice during ssa\nbuilding to ensure the correctness.\n\nChange-Id: If479efa3680d3358800aebb1cca692fa2d94f6e5\n"
    },
    {
      "commit": "ed59619b370ef23ffbb25d1d01f615e60a9262b6",
      "tree": "6c93bb6ceff95f7aaf232825e050eecc05c7282d",
      "parents": [
        "f90eec005997f98c1a9f874fbbf68414e5f9c766"
      ],
      "author": {
        "name": "David Brazdil",
        "email": "dbrazdil@google.com",
        "time": "Fri Jan 23 10:39:45 2015 +0000"
      },
      "committer": {
        "name": "David Brazdil",
        "email": "dbrazdil@google.com",
        "time": "Mon Jan 26 16:13:57 2015 +0000"
      },
      "message": "Optimizing: Speed up HEnvironment use removal\n\nRemoval of use records from HEnvironment vregs involved iterating over\npotentially large linked lists which made compilation of huge methods\nvery slow. This patch turns use lists into doubly-linked lists, stores\npointers to the relevant nodes inside HEnvironment and subsequently\nturns the removals into constant-time operations.\n\nChange-Id: I0e1d4d782fd624e7b8075af75d4adf0a0634a1ee\n"
    },
    {
      "commit": "f537012ceb6cba8a78b36a5065beb9588451a250",
      "tree": "08851014d687b0e08accfdc2f1553a89789b4fd4",
      "parents": [
        "10a573a1f8708dbe2bcb7835341cbd8e9606af63"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Dec 02 11:51:19 2014 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Dec 02 12:24:07 2014 +0000"
      },
      "message": "Treat SSA transformation special, as we may have to bailout.\n\nWe forgot to bailout when we found a non-natural loop (on which\nour optimizations don\u0027t work).\n\nChange-Id: I11976b5af4c98f4f29267a74c74d34b5ad81e20c\n"
    },
    {
      "commit": "3159674c0863f53cfbc1913d493550221ac47f02",
      "tree": "5dc34e8da8dc695cf80040ba0dbc5312060c10c1",
      "parents": [
        "4d3ed1a6f34bd31ed30faaca0433cf2a4b19bb7b"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Nov 24 15:28:45 2014 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Nov 25 00:55:07 2014 +0000"
      },
      "message": "Fix a bug in the type analysis phase of optimizing.\n\nDex code can lead to the creation of a phi with one\nfloat input and one integer input. Since the SSA builder trusts\nthe verifier, it assumes that the integer input must be converted\nto float. However, when the register is not used afterwards, the\nverifier hasn\u0027t ensured that. Therefore, the compiler must remove\nthe phi prior to doing type propagation.\n\nChange-Id: Idcd51c4dccce827c59d1f2b253bc1c919bc07df5\n"
    },
    {
      "commit": "421e9f9088b51e9680a3dfcae6965fc1854d3ee4",
      "tree": "4a9429babb514ff0d8f6772f44aa73c79ec7a773",
      "parents": [
        "d6425d7bb909b668341d9781c567f35f6d10ea16"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Nov 11 18:21:53 2014 +0000"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Nov 11 18:24:48 2014 +0000"
      },
      "message": "Remove HTemporary when building the SSA graph.\n\n- They are useless afterwards. If we keep them around, they can\n  crash the dump of the graph, where they always assume a previous\n  instruction.\n\n- In the call to HTemporary::GetType, check that the previous\n  instruction exists.\n\nChange-Id: Ie7bf44d05cb61e3654a69725c1980925580dd3a6\n"
    },
    {
      "commit": "102cbed1e52b7c5f09458b44903fe97bb3e14d5f",
      "tree": "cb0a433c8f284021298c8a0c4dd0da97ca9d198a",
      "parents": [
        "07f5c5edb7ef24ac35364e6ef9a8107a44e6564e"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed Oct 15 18:31:05 2014 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Tue Oct 21 16:03:51 2014 +0100"
      },
      "message": "Implement register allocator for floating point registers.\n\nAlso:\n- Fix misuses of emitting the rex prefix in the x86_64 assembler.\n- Fix movaps code generation in the x86_64 assembler.\n\nChange-Id: Ib6dcf6e7c4a9c43368cfc46b02ba50f69ae69cbe\n"
    },
    {
      "commit": "804d09372cc3d80d537da1489da4a45e0e19aa5d",
      "tree": "b226350fdf3dc0c55a11e1615010c8475f167f90",
      "parents": [
        "0095e0b8380a8802f40a21928800b9df6e11f1d7"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Fri May 02 08:46:00 2014 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Wed May 07 10:32:11 2014 +0100"
      },
      "message": "Build live-in, live-out and kill sets for each block.\n\nThis information will be used when computing live ranges of\ninstructions.\n\nChange-Id: I345ee833c1ccb4a8e725c7976453f6d58d350d74\n"
    },
    {
      "commit": "c32e770f21540e4e9eda6dc7f770e745d33f1b9f",
      "tree": "56a76d7399bf749a4500fb60483e0dc075a24ee7",
      "parents": [
        "618a87009202dc959c935ed8f237ae32bdec57d0"
      ],
      "author": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Thu Apr 24 12:43:16 2014 +0100"
      },
      "committer": {
        "name": "Nicolas Geoffray",
        "email": "ngeoffray@google.com",
        "time": "Mon Apr 28 16:21:40 2014 +0100"
      },
      "message": "Add a Transform to SSA phase to the optimizing compiler.\n\nChange-Id: Ia9700756a0396d797a00b529896487d52c989329\n"
    }
  ]
}