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JIT: Handle retbuf definitions precisely in physical promotion's liveness #104551

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jakobbotsch
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Finding the actual type defined by the call requires going from the LCL_ADDR to the CALL node, which was never implemented.
This implements the logic by simply searching for the parent in the containing statement.

Fix #86711

@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 Jul 8, 2024
@jakobbotsch jakobbotsch changed the title JIT: Handle retbuf definitions precise in physical promotion's liveness JIT: Handle retbuf definitions precisely in physical promotion's liveness Jul 8, 2024
@jakobbotsch jakobbotsch marked this pull request as ready for review July 8, 2024 18:57
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cc @dotnet/jit-contrib PTAL @AndyAyersMS

Very minor diffs. Will probably be slightly bigger with #104467.

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/azp run runtime-coreclr superpmi-diffs

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Azure Pipelines successfully started running 1 pipeline(s).

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Indeed slightly larger diffs now, but nothing significant.

@jakobbotsch jakobbotsch merged commit 528b6fc into dotnet:main Jul 9, 2024
101 of 107 checks passed
@jakobbotsch jakobbotsch deleted the fix-physical-promotion-retbuf-liveness branch July 9, 2024 15:31
matouskozak added a commit to matouskozak/runtime that referenced this pull request Jul 11, 2024
@github-actions github-actions bot locked and limited conversation to collaborators Aug 9, 2024
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JIT: Handle liveness for defined retbufs in physical promotion
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