Reviewers: Sven Panne,
Description:
[turbofan] Improve ChangeLowering.
- Use representation information provided by the type system to skip SMI
checks.
- Fix combining of ChangeTaggedToFloat64 with JSToNumber now that JS
operators can produce control.
- Remove the unnecessary abstraction of smi/field offsets.
- Improve unit test coverage.
- Various cosmetic fixes.
[email protected]
Please review this at https://codereview.chromium.org/1018873002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+360, -303 lines):
M src/compiler/change-lowering.h
M src/compiler/change-lowering.cc
M test/unittests/compiler/change-lowering-unittest.cc
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