Reviewers: Benedikt Meurer,
Description:
[turbofan] Optimized lowering of DYNAMIC_LOCAL lookup slot loads.
This adds handling of JSLoadDynamicContext nodes to JSTypedLowering to
perform extension checks and an inline fast path. The fast path is a
context slot load targeting a specific context.
R=bmeu...@chromium.org
BUG=v8:4131
LOG=N
Please review this at https://codereview.chromium.org/1155543003/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+107, -1 lines):
M src/compiler/ast-graph-builder.cc
M src/compiler/js-typed-lowering.h
M src/compiler/js-typed-lowering.cc
M test/unittests/compiler/js-typed-lowering-unittest.cc
M test/unittests/compiler/node-test-utils.cc
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