Reviewers: Hannes Payer,
Message:
PTAL
Description:
Refactor transitioning stores.
There's actually no need to have the transition as part of the
HStoreNamedField
instruction. In fact, it is cleaner and faster to generate a separate
HStoreNamedField for the transition map. This will also help to eliminate
map
stores with store elimination, as well as reduce register pressure for
transitioning stores on ia32.
Please review this at https://codereview.chromium.org/295743002/
SVN Base: [email protected]:v8/v8.git@master
Affected files (+33, -210 lines):
M src/arm/lithium-arm.h
M src/arm/lithium-arm.cc
M src/arm/lithium-codegen-arm.cc
M src/arm64/lithium-arm64.cc
M src/arm64/lithium-codegen-arm64.cc
M src/hydrogen.cc
M src/hydrogen-check-elimination.cc
M src/hydrogen-escape-analysis.cc
M src/hydrogen-instructions.h
M src/hydrogen-instructions.cc
M src/hydrogen-load-elimination.cc
M src/hydrogen-store-elimination.cc
M src/ia32/lithium-codegen-ia32.cc
M src/ia32/lithium-ia32.h
M src/ia32/lithium-ia32.cc
M src/lithium.h
M src/lithium.cc
M src/lithium-codegen.h
M src/lithium-codegen.cc
M src/x64/lithium-codegen-x64.cc
M src/x64/lithium-x64.cc
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