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This resolves #96939

@ghost ghost assigned tannergooding Jan 14, 2024
@ghost ghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jan 14, 2024
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ghost commented Jan 14, 2024

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Issue Details

This resolves #96939

Author: tannergooding
Assignees: tannergooding
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area-CodeGen-coreclr

Milestone: -

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tannergooding commented Jan 16, 2024

CC. @dotnet/jit-contrib for review, this fixes #96939 and will need consideration for backporting to .NET 8

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EgorBo commented Jan 16, 2024

Are you planning to backport the fix to 8.0 ?

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Are you planning to backport the fix to 8.0 ?

Yes, but it will need to wait for the March release.

@tannergooding tannergooding merged commit cc59b89 into dotnet:main Jan 17, 2024
@tannergooding tannergooding deleted the fix-96939 branch January 17, 2024 02:50
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/backport to release/8.0-staging

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Started backporting to release/8.0-staging: https://github.com/dotnet/runtime/actions/runs/7550401659

tmds pushed a commit to tmds/runtime that referenced this pull request Jan 23, 2024
…tor2 pre SSE4.1 (dotnet#96951)

* Ensure that the Create(Dot(...)) optimization doesn't kick in for Vector2 pre SSE4.1

* Make sure to use #if defined(...)

* Add missing using

* Fix a type in the test
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Successfully merging this pull request may close these issues.

Tiered miscompilation of Vector2.Dot(x, x) without SSE4.1
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