Reviewers: Michael Starzinger, titzer,
Message:
Created Revert of [turbofan] Optimize loads from the global object in
JSTypeFeedbackSpecializer.
Description:
Revert of [turbofan] Optimize loads from the global object in
JSTypeFeedbackSpecializer. (patchset #10 id:180001 of
https://codereview.chromium.org/1063513003/)
Reason for revert:
[sheriff] Breaks nosnap debug:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug%20-%201/builds/156
Original issue's description:
[turbofan] Optimize loads from the global object in
JSTypeFeedbackSpecializer.
Uses lazy deoptimization and code dependencies to introduce loads
from property cells and also to promote globals to constants.
[email protected]
BUG=
Committed: https://crrev.com/aae4a62d07e839455b1d0ad4fa512cc5d48a1a68
Cr-Commit-Position: refs/heads/master@{#28057}
[email protected],[email protected]
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Please review this at https://codereview.chromium.org/1084533003/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+20, -564 lines):
M src/compiler.cc
M src/compiler/access-builder.h
M src/compiler/access-builder.cc
M src/compiler/js-type-feedback.h
M src/compiler/js-type-feedback.cc
M src/compiler/pipeline.cc
M test/cctest/compiler/test-run-jsexceptions.cc
D test/mjsunit/compiler/global-delete.js
D test/mjsunit/compiler/global-var-delete.js
D test/unittests/compiler/js-type-feedback-unittest.cc
M test/unittests/unittests.gyp
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