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runtime: mysterious crashes and non-determinism with range over func [1.23 backport] #69511

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gopherbot opened this issue Sep 18, 2024 · 1 comment
Open

runtime: mysterious crashes and non-determinism with range over func [1.23 backport] #69511

gopherbot opened this issue Sep 18, 2024 · 1 comment
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CherryPickCandidate Used during the release process for point releases compiler/runtime Issues related to the Go compiler and/or runtime.
Milestone
Go1.23.2

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@gopherbot
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@ianlancetaylor requested issue #69507 to be considered for backport to the next 1.23 minor release.

@gopherbot Please open a backport to 1.23.

This appears to be a compiler bug related to the range-over-function code. The compiler is generating bad code--a variable that escapes is stack-allocated. There is no workaround (other than avoiding range-over-func).
@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Sep 18, 2024
@gopherbot gopherbot mentioned this issue Sep 18, 2024
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@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Sep 18, 2024
@gopherbot gopherbot added this to the Go1.23.2 milestone Sep 18, 2024
@cuonglm cuonglm mentioned this issue Sep 18, 2024
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@gopherbot
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Change https://go.dev/cl/614195 mentions this issue: [release-branch.go1.23] cmd/compile: fix wrong esacpe analysis for rangefunc

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CherryPickCandidate Used during the release process for point releases compiler/runtime Issues related to the Go compiler and/or runtime.
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Go1.23.2
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