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Optimize out write barriers for fields in ref-like structs #9512

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#103503
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Optimize out write barriers for fields in ref-like structs#9512
#103503
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EgorBo
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JitUntriagedCLR JIT issues needing additional triagearea-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIenhancementProduct code improvement that does NOT require public API changes/additionsin-prThere is an active PR which will close this issue when it is mergedoptimizationtenet-performancePerformance related issue
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9.0.0
@jkotas

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@jkotas
jkotas
opened on Jan 5, 2018

From dotnet/coreclr#15745 (comment) :

Hmm, I wonder if there are sufficient guarantees that by ref like types only live on the stack for the JIT to be able to eliminate GC write barriers when writing to fields of such types.

Yes, there are. It would be nice optimization to have.

cc @mikedn

category:cq
theme:barriers
skill-level:expert
cost:small

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JitUntriagedCLR JIT issues needing additional triagearea-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMIenhancementProduct code improvement that does NOT require public API changes/additionsin-prThere is an active PR which will close this issue when it is mergedoptimizationtenet-performancePerformance related issue

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