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cmd/go2go: generated code leads to cmd/compile internal error #40486

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griesemer opened this issue Jul 30, 2020 · 3 comments
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cmd/go2go: generated code leads to cmd/compile internal error #40486

griesemer opened this issue Jul 30, 2020 · 3 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.
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@griesemer
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Extracted from crash 9 of #39634 :

https://go2goplay.golang.org/p/-YZdFhVx8UX

cc: @ianlancetaylor
@gopherbot
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Change https://golang.org/cl/245742 mentions this issue: [dev.go2go] go/types: add testcase for crash 9 of #39634

gopherbot pushed a commit that referenced this issue Jul 30, 2020
@griesemer
[dev.go2go] go/types: add testcase for crash 9 of #39634
deb678c 
This test passes type-checking without problems but the
generated code causes a cmd/compile error (filed #40486).

Updates #39634.

Change-Id: If3dd28605f6d8792c6bd5bb032624e9a6140b2c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/245742
Reviewed-by: Robert Griesemer <gri@golang.org>
@ianlancetaylor
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This does not get a compiler crash if I translate it and then go build with current tip. So the crash will probably be fixed if we update dev.go2go to current mainline.

That said it does get an error with tip, so there is something wrong with the translation tool.

@ianlancetaylor ianlancetaylor self-assigned this Jul 30, 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 Jul 30, 2020
@ianlancetaylor ianlancetaylor added this to the Unreleased milestone Jul 30, 2020
@ianlancetaylor
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Does not crash on tip. Correctly gets an error.

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