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go/types, types2: internal compiler error: panic #56425

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splace opened this issue Oct 25, 2022 · 4 comments
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go/types, types2: internal compiler error: panic #56425

splace opened this issue Oct 25, 2022 · 4 comments
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FrozenDueToAge NeedsFix The path to resolution is known, but the work has not been done. release-blocker
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@splace
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splace commented Oct 25, 2022

https://go.dev/play/p/PdWqpOHxCFb

@wdvxdr1123
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cc @griesemer

@griesemer griesemer self-assigned this Oct 26, 2022
@griesemer griesemer added this to the Go1.20 milestone Oct 26, 2022
@griesemer griesemer added the NeedsFix The path to resolution is known, but the work has not been done. label Oct 26, 2022
@griesemer
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Thanks for reporting. This is a typechecker bug.

@griesemer
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Slightly simplified reproducer:

package p

const s float32 = 0
var _ = 0 << s

@gopherbot
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Change https://go.dev/cl/445515 mentions this issue: go/types, types2: use correct shift value when typechecking constant shift

@seankhliao seankhliao changed the title internal compiler error: panic go/types, types2: internal compiler error: panic Oct 26, 2022
romaindoumenc pushed a commit to TroutSoftware/go that referenced this issue Nov 3, 2022
…shift

Fixes golang#56425.

Change-Id: Ieae3fdb5326d4b6f6ec1cdcd579051559e34b35b
Reviewed-on: https://go-review.googlesource.com/c/go/+/445515
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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