Reviewers: jarin, Michael Starzinger,
Description:
[turbofan] Move graph trimming functionality to dedicated GraphTrimmer.
Up until now that was still mixed with control reduction in the
ControlReducer. This separation allows us to remove the horrible
Reducer::Finish hack and also do graph trimming at more appropriate
places in the pipeline (i.e. trim dead nodes after generic lowering,
which can also make nodes dead).
[email protected],[email protected]
Please review this at https://codereview.chromium.org/1188433010/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+240, -356 lines):
M BUILD.gn
M src/compiler/control-reducer.h
M src/compiler/control-reducer.cc
M src/compiler/graph-reducer.h
M src/compiler/graph-reducer.cc
A src/compiler/graph-trimmer.h
A src/compiler/graph-trimmer.cc
M src/compiler/node-marker.h
M src/compiler/node-marker.cc
M src/compiler/osr.cc
M src/compiler/pipeline.cc
M test/cctest/compiler/test-control-reducer.cc
A test/unittests/compiler/graph-trimmer-unittest.cc
M test/unittests/unittests.gyp
M tools/gyp/v8.gyp
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