Reviewers: Hannes Payer,
Message:
This is still work-in-progress, but just to give you an idea of how this is
supposed to work...
Description:
Improve write barriers in optimized code.
Use a cheaper RecordWriteForMap() to update the
write barrier for maps. And skip the value check
in RecordWriteField() when we statically know that
the value is in new space (and therefore has "pointers
to here are interesting" flag set).
Please review this at https://codereview.chromium.org/297763006/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files (+164, -61 lines):
M src/arm/lithium-codegen-arm.cc
M src/arm/macro-assembler-arm.h
M src/arm/macro-assembler-arm.cc
M src/hydrogen-instructions.h
M src/ia32/lithium-codegen-ia32.cc
M src/ia32/macro-assembler-ia32.h
M src/ia32/macro-assembler-ia32.cc
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