)]}' { "commit": "97004589756b0022bfdbb127c4ae0bc275f07b4b", "tree": "dc2804eeb69f3b85d1ab0ad057598a8c89699f1d", "parents": [ "f4ea96ff2cc00b5c73a35da34c04c118f3ebc435" ], "author": { "name": "Alexander Markov", "email": "alexmarkov@google.com", "time": "Thu Aug 18 16:53:24 2022 +0000" }, "committer": { "name": "Commit Bot", "email": "commit-bot@chromium.org", "time": "Thu Aug 18 16:53:24 2022 +0000" }, "message": "[vm/compiler] Initial implementation of IL binary serialization\n\nThis change adds binary serialization/deserialization of flow graphs.\nIt supports all IL instructions and certain objects which can be\nreferenced from IL instructions. IL binary serialization is a useful\nmachanism which would allow us to split compilation into multiple parts\nin order to parallelize AOT compilation.\n\nThe program structure (libraries/classes/functions/fields) is not\nserialized. It is assumed that reader and writer use the same\nprogram structure.\n\nCaveats:\n* FFI callbacks are not supported yet.\n* Closure functions are not re-created when reading flow graph.\n* Flow graph should be in SSA form (unoptimized flow graphs are not\n supported).\n* JIT mode is not supported (serializer currently assumes lazy\n linking of native methods and empty ICData).\n\nIn order to test IL serialization, --test_il_serialization VM option is\nadded to serialize and deserialize flow graph before generating code.\n\nTEST\u003dvm/dart/splay_test now runs with --test_il_serialization.\n\nTEST\u003dManual run of vm-kernel-precomp-linux-debug-x64-try with\n--test_il_serialization enabled (only ffi tests failed).\n\nIssue: https://github.com/dart-lang/sdk/issues/43299\nChange-Id: I7bbfd9e3a301e00c9cfbffa06b8f1f6c78a78470\nReviewed-on: https://dart-review.googlesource.com/c/sdk/+/254941\nReviewed-by: Ryan Macnak \u003crmacnak@google.com\u003e\nCommit-Queue: Alexander Markov 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