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cmd/compile: nil pointer in buildClosure #48225

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korzhao opened this issue Sep 7, 2021 · 2 comments
Closed

cmd/compile: nil pointer in buildClosure #48225

korzhao opened this issue Sep 7, 2021 · 2 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Milestone
Go1.18

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@korzhao
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korzhao commented Sep 7, 2021 •
edited

What version of Go are you using (go version)?

$ go version
go version devel go1.18

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env

What did you do?

package main

type Foo[T any] struct {
}

func (foo Foo[T]) Get()  {
}

var(
     _ = Foo[[]string]{}.Get
)

func main() {
}

What did you expect to see?

What did you see instead?

[signal SIGSEGV: segmentation violation code=0x1 addr=0x80 pc=0x17c49ff]

goroutine 1 [running]:
cmd/compile/internal/noder.(*irgen).buildClosure(0xc0002fa200, 0x0, {0x1a63778, 0xc0003c2300})
        /Users/kezhao/google/go/src/cmd/compile/internal/noder/stencil.go:405 +0xc7f

@danscales
@ALTree ALTree added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 7, 2021
@ALTree ALTree added this to the Go1.18 milestone Sep 7, 2021
@thanm
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thanm commented Sep 7, 2021

@randall77 @danscales

@gopherbot
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Change https://golang.org/cl/348512 mentions this issue: cmd/compile: fix implement for closure in a global assignment

@golang golang locked and limited conversation to collaborators Sep 9, 2022
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@ALTree @gopherbot @thanm @korzhao