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cmd/compile: failure to reject initialization loop #21752

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mdempsky opened this issue Sep 3, 2017 · 2 comments
Open

cmd/compile: failure to reject initialization loop #21752

mdempsky opened this issue Sep 3, 2017 · 2 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsFix The path to resolution is known, but the work has not been done.
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@mdempsky
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mdempsky commented Sep 3, 2017

cmd/compile accepts this bit of code, while go/types and gccgo reject it as an initialization cycle ("A refers to A"):

var A = func() int {
	if false {
		return A
	}
	return 0
}()

https://play.golang.org/p/jpUoGbyJqX

Related #21750. The common issue here is probably that we're performing initialization order analysis based on the optimized/inlined functions rather than the original Go source.

/cc @griesemer

@griesemer griesemer self-assigned this Sep 18, 2017
@griesemer griesemer added this to the Go1.10 milestone Sep 18, 2017
@griesemer
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Marking 1.10 so it stays on radar.

@griesemer griesemer modified the milestones: Go1.10, Go1.11 Nov 28, 2017
@ianlancetaylor ianlancetaylor added the NeedsFix The path to resolution is known, but the work has not been done. label Jun 30, 2018
@ianlancetaylor ianlancetaylor modified the milestones: Go1.11, Go1.12 Jun 30, 2018
@odeke-em
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odeke-em commented Oct 18, 2018

Thanks for the report @mdempsky! Commenting here to add this to my priority list or at least radar, for Go1.12.

@odeke-em odeke-em self-assigned this Oct 18, 2018
@griesemer griesemer modified the milestones: Go1.12, Go1.13 Nov 28, 2018
@griesemer griesemer modified the milestones: Go1.13, Go1.14 May 6, 2019
@rsc rsc modified the milestones: Go1.14, Backlog Oct 9, 2019
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 13, 2022
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Labels
compiler/runtime Issues related to the Go compiler and/or runtime. NeedsFix The path to resolution is known, but the work has not been done.
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Status: Triage Backlog
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6 participants