Reviewers: Hannes Payer,
Message:
PTAL (no hurry, I'm planning to land this after double unboxing is enabled)
Description:
LayoutDescriptorHelper is now able to calculate the length of contiguous
regions
of tagged/non-tagged fields.
This functionality is now used by both object visitor and store buffer.
TEST=cctest/test-unboxed-doubles
Please review this at https://codereview.chromium.org/726713003/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+560, -37 lines):
M src/heap/mark-compact.cc
M src/heap/objects-visiting.h
M src/heap/store-buffer.cc
M src/layout-descriptor.h
M src/layout-descriptor.cc
M src/layout-descriptor-inl.h
M src/objects-inl.h
M test/cctest/test-unboxed-doubles.cc
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