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incr.comp.: Do per-MonoItem dependency tracking in order to collect data about granularity fallout. #48211

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michaelwoerister opened this issue Feb 14, 2018 · 0 comments
Open

incr.comp.: Do per-MonoItem dependency tracking in order to collect data about granularity fallout. #48211

michaelwoerister opened this issue Feb 14, 2018 · 0 comments
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A-incr-comp Area: Incremental compilation C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@michaelwoerister
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Currently the compiler only allocates a single DepNode per CGU. This is enough for implementing object file re-use but we are losing information about what items within an object file exactly caused it to be re-compiled. In order to gather more information about how CGU partitioning affects re-use, it would be good to know which MonoItems within a CGU were changed and which were not.

Before making this the default though, we should check how it affects the number of DepNodes and edges in the graph.
@michaelwoerister michaelwoerister added the A-incr-comp Area: Incremental compilation label Feb 14, 2018
This was referenced Feb 14, 2018
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@XAMPPRocky XAMPPRocky added C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Apr 26, 2018
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A-incr-comp Area: Incremental compilation C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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