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cmd/compile: mark ODYNAMICDOTTYPE as an expression that can panic
Fixes #47924 Change-Id: I4325b3c4ed9d369d9ea778478285436e1b2ab08a Reviewed-on: https://go-review.googlesource.com/c/go/+/344571 Trust: Keith Randall <khr@golang.org> Trust: Dan Scales <danscales@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
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@ -312,7 +312,7 @@ func mayCall(n ir.Node) bool {
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return true
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case ir.OINDEX, ir.OSLICE, ir.OSLICEARR, ir.OSLICE3, ir.OSLICE3ARR, ir.OSLICESTR,
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ir.ODEREF, ir.ODOTPTR, ir.ODOTTYPE, ir.ODIV, ir.OMOD, ir.OSLICE2ARRPTR:
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ir.ODEREF, ir.ODOTPTR, ir.ODOTTYPE, ir.ODYNAMICDOTTYPE, ir.ODIV, ir.OMOD, ir.OSLICE2ARRPTR:
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// These ops might panic, make sure they are done
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// before we start marshaling args for a call. See issue 16760.
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return true
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15
test/typeparam/issue47924.go
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15
test/typeparam/issue47924.go
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@ -0,0 +1,15 @@
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// compile -G=3
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package p
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type Cache[K any] struct{}
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func (c Cache[K]) foo(x interface{}, f func(K) bool) {
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f(x.(K))
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}
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var _ Cache[int]
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