commit | be781e51f577723881d29028815d70270c9dc658 | [log] [tgz] |
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author | bjaideep <bjaideep@ca.ibm.com> | Thu Jan 12 17:57:01 2017 |
committer | Commit bot <commit-bot@chromium.org> | Thu Jan 12 17:57:01 2017 |
tree | d7a278cfa8d53f578055c249c56cced065c43a63 | |
parent | df5417ae7640de40e2342ad0c16a64f4138279bc [diff] |
PPC/s390: [TypeFeedbackVector] Root literal arrays in function literals slots Port b8294aaa978e972978b8d82cedf63befad5d7af1 Original Commit Message: Literal arrays and feedback vectors for a function can be garbage collected if we don't have a rooted closure for the function, which happens often. It's expensive to come back from this (recreating boilerplates and gathering feedback again), and the cost is disproportionate if the function was inlined into optimized code. To guard against losing these arrays when we need them, we'll now create literal arrays when creating the feedback vector for the outer closure, and root them strongly in that vector. R=mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG=v8:5456 LOG=N Review-Url: https://codereview.chromium.org/2626263002 Cr-Commit-Position: refs/heads/master@{#42280}
V8 is Google's open source JavaScript engine.
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