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gccgo: crash on loop alias reference #36764

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dotaheor opened this issue Jan 25, 2020 · 1 comment
Open

gccgo: crash on loop alias reference #36764

dotaheor opened this issue Jan 25, 2020 · 1 comment
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NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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Gccgo

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

$ gccgo --version
gccgo (Ubuntu 8.3.0-6) 8.3.0

Does this issue reproduce with the latest release?

True

What did you do?

type A = *struct {
	A
}

What did you expect to see?

Fails to compile for invalid recursive type alias.

What did you see instead?

Crashes.
@gopherbot gopherbot added this to the Gccgo milestone Jan 25, 2020
@ianlancetaylor ianlancetaylor added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Jan 25, 2020
@dotaheor
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Another one:

package main

type A B

type B = struct {
	*A
}

func (*A) M() {}

func main() {
	var b B
	b.M()
}

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@ianlancetaylor @gopherbot @dotaheor