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Remove CreateFalse node during lowering, if MaskToVector is getting removed #114272

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Merged
merged 5 commits into from
Apr 7, 2025
Merged

Remove CreateFalse node during lowering, if MaskToVector is getting removed #114272

merged 5 commits into from
Apr 7, 2025

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kunalspathak
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During lowering, if we see CndSel(AllTrue, op2, op3), we replace it with op2 and delete AllTrue and op3. If op3 is AllFalse, we remove it too. However, it can be wrapped in MaskToVector(AllFalse) and in such case, we would just delete MaskToVector node and not AllFalse node. Fixed by removing that node as well.

Fixes: #113338

@Copilot Copilot AI review requested due to automatic review settings April 4, 2025 17:29
@ghost ghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Apr 4, 2025
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Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

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  • src/tests/JIT/Regression/JitBlue/Runtime_113338/Runtime_113338.csproj: Language not supported

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@dotnet/jit-contrib @dotnet/arm64-contrib

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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

@kunalspathak kunalspathak mentioned this pull request Apr 4, 2025
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most of the failures seems to be #113534 which is fixed in #114228. I will merge main, just to be sure.

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/azp run Fuzzlyn, Antigen

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jakobbotsch
jakobbotsch reviewed Apr 6, 2025
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/azp run Fuzzlyn

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@build-analysis build-analysis bot mentioned this pull request Apr 7, 2025
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osx/arm64 fuzzlyn failure is #113940

@kunalspathak kunalspathak merged commit 9559b2a into dotnet:main Apr 7, 2025
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@kunalspathak kunalspathak mentioned this pull request Apr 9, 2025
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@jakobbotsch jakobbotsch jakobbotsch approved these changes

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Successfully merging this pull request may close these issues.

JIT: Assertion failed 'node->IsUnusedValue() && "found an unmarked unused value"' during 'Lowering nodeinfo'
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