Reviewers: danno, Benedikt Meurer, Paul Lind, kisg, palfia, dusmil,
Description:
MIPS: Improve write barriers in optimized code.
Port r21630 (a21ff10)
Original commit message:
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).
BUG=
Please review this at https://codereview.chromium.org/315653002/
SVN Base: [email protected]:paul99/v8m-rb.git@master
Affected files (+138, -31 lines):
M src/mips/lithium-codegen-mips.cc
M src/mips/macro-assembler-mips.h
M src/mips/macro-assembler-mips.cc
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