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Reduce calli address spilling #85349

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Apr 27, 2023
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MichalPetryka
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Avoid spilling FTN_ADDR params, removes spilling of address on 0 arg default cconv callis.

Split off from #85197.

@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 Apr 25, 2023
@ghost ghost added the community-contribution Indicates that the PR has been added by a community member label Apr 25, 2023
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ghost commented Apr 25, 2023

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
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Avoid spilling FTN_ADDR params, removes spilling of address on 0 arg default cconv callis.

Split off from #85197.

Author: MichalPetryka
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area-CodeGen-coreclr

Milestone: -

@jakobbotsch
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/azp run jit-cfg

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Azure Pipelines successfully started running 1 pipeline(s).

@MichalPetryka
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This seems to trigger huge diffs due to delegate constructors taking less of the inliner budget.

@AndyAyersMS
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Seems like the huge diffs are mostly in what are likely unrealistic test cases.

I'd like to see the ASP.NET diffs but unfortunately I can't recollect this right now as the machine I use is offline. So let's hold onto this change until I can get that collection going again.

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/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

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Azure Pipelines successfully started running 2 pipeline(s).

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AndyAyersMS commented Apr 26, 2023

I have a new ASP.NET SPMI collection so am going to rerun that part of normal CI.

@jakobbotsch do you know if the stress failures here were mostly from promotion?

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Seems like since SPMI passed the first time the only rerun option is to bounce the PR.

@MichalPetryka why don't we merge this up to main and trigger a new round of CI that way? Would prefer you to do this but I can do it if you like.

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MichalPetryka commented Apr 26, 2023

do you know if the stress failures here were mostly from promotion?

I'd like to rerun stress after @jakobbotsch fixes the promotion issues with #85343.

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/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

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Azure Pipelines successfully started running 2 pipeline(s).

@AndyAyersMS
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FYI you can generally just merge and not rebase -- that makes it a bit easier for us to track what is going on.

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@jakobbotsch do you know if the stress failures here were mostly from promotion?

Looks like it, the remaining failures are #85449, #85426 and #48798 as far as I can tell.

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Seems like the various failures are known, so let's merge.

@AndyAyersMS AndyAyersMS merged commit 0f06ede into dotnet:main Apr 27, 2023
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@MichalPetryka thanks!

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3 participants