Reviewers: Toon Verwaest, ulan,
Message:
Created Revert of Simplify and compact transitions storage
Description:
Revert of Simplify and compact transitions storage (patchset #4 id:80001 of
https://codereview.chromium.org/980573002/)
Reason for revert:
x64 test failures
Original issue's description:
Simplify and compact transitions storage
Simple transitions are now stored in a map's "transitions" field (as a
WeakCell wrapping the target map); full TransitionArrays are used when
that's
not sufficient.
To encapsulate these storage format implementation details, functions for
manipulating and querying transitions have been refactored to be static
functions on the TransitionArray class, and take maps as inputs.
Committed: https://crrev.com/45fbef7f2252fce10634931cb103ccc1fc95ae6a
Cr-Commit-Position: refs/heads/master@{#27029}
[email protected],[email protected]
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Please review this at https://codereview.chromium.org/982143002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+1057, -1036 lines):
M src/heap-snapshot-generator.cc
M src/heap/heap.cc
M src/heap/mark-compact.h
M src/heap/mark-compact.cc
M src/heap/objects-visiting-inl.h
M src/hydrogen.h
M src/json-parser.h
M src/objects.h
M src/objects.cc
M src/objects-debug.cc
M src/objects-inl.h
M src/objects-printer.cc
M src/transitions.h
M src/transitions.cc
M src/transitions-inl.h
M test/cctest/test-heap.cc
M test/cctest/test-migrations.cc
M test/cctest/test-transitions.cc
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