| commit | 9e6b3565a513601bd792f7434c551168a98859b7 | [log] [tgz] |
|---|---|---|
| author | Mythri A <mythria@chromium.org> | Wed May 08 11:26:53 2019 |
| committer | Commit Bot <commit-bot@chromium.org> | Fri May 10 12:54:35 2019 |
| tree | 66961f30089136c495b9986beafc00fec06367b7 | |
| parent | d5efb9a764ab3118fcdf4eb4acb573a3fed632da [diff] |
[debug] Update code-coverage / type-profile to work with lazy feedback Precise code-coverage, collecting type profile and logging function events need feedback vectors. This cl allocates feedback vector eagerly when any of these features are required. When the code-coverage mode changes to anything other than best case, this scans over the entire heap and allocates feedback vectors for the required functions. For best case code coverage we use interrupt budget field on the feedback cell to infer if a function has executed. We still use the invocation count on the feedback vector if feedback vector is available. Bug: v8:8394 Change-Id: Ia0e656aaaa024d6d893a5badafc9a42ce36e9ea3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601143 Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#61410}
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