Reviewers: Benedikt Meurer,
Description:
[turbofan] Make an OptionalOperator for MachineOperatorBuilder.
This makes usage of the MachineOperatorBuilder more robust, as it will be
an error to request an unsupported operator.
Along the way, I noticed that all 7 platforms support Float32Abs and
Float64Abs. Should make them non-optional in another CL?
[email protected]
BUG=
Please review this at https://codereview.chromium.org/1128133003/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+224, -175 lines):
M src/compiler/common-operator-reducer.cc
M src/compiler/js-intrinsic-lowering.cc
M src/compiler/machine-operator.h
M src/compiler/machine-operator.cc
M src/compiler/raw-machine-assembler.h
M test/cctest/compiler/test-run-machops.cc
M test/unittests/compiler/instruction-selector-unittest.h
M test/unittests/compiler/machine-operator-unittest.cc
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