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JIT: Recheck CSE defs in hot blocks for uses in cold blocks on non-xarch #75253

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jakobbotsch opened this issue Sep 8, 2022 · 1 comment
Open

JIT: Recheck CSE defs in hot blocks for uses in cold blocks on non-xarch #75253

jakobbotsch opened this issue Sep 8, 2022 · 1 comment
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area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
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jakobbotsch commented Sep 8, 2022 •
edited by BruceForstall
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Given there is less containment on non-xarch architectures it should be more attractive to create CSEs that have defs in hot blocks but uses in cold blocks. VTable GDV and delegate GDV are two places where this frequently occurs.
#75140 (comment)

category:cq
theme:cse
skill-level:intermediate
cost:small
impact:small
@ghost ghost added the untriaged New issue has not been triaged by the area owner label Sep 8, 2022
@dotnet-issue-labeler dotnet-issue-labeler bot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Sep 8, 2022
@jakobbotsch jakobbotsch self-assigned this Sep 8, 2022
@jakobbotsch jakobbotsch added this to the 8.0.0 milestone Sep 8, 2022
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ghost commented Sep 8, 2022

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Issue Details

Given there is less containment on non-xarch architectures it should be more attractive to create CSEs that have defs in hot blocks but uses in cold blocks. VTable GDV and delegate GDV are two places where this frequently occurs.
#75140 (comment)

Author: jakobbotsch
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area-CodeGen-coreclr, untriaged
Milestone: -

@ghost ghost removed the untriaged New issue has not been triaged by the area owner label Sep 8, 2022
@jakobbotsch jakobbotsch mentioned this issue Sep 8, 2022
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@jakobbotsch jakobbotsch mentioned this issue Feb 6, 2023
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@jakobbotsch jakobbotsch modified the milestones: 8.0.0, Future Jun 6, 2023
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