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Author SHA1 Message Date
Keith Randall
1f83a8c16c cmd/compile: use the zero value for results of impossible indexing
type A [0]int
var a A
x := a[i]

Use the zero value for x instead of the "impossible" value. That lets
us at least compile code like this with -B, even though it can't
possibly run correctly.

Fixes #48092

Change-Id: Idad5cfab49e05f375c069b05addceed68a15299f
Reviewed-on: https://go-review.googlesource.com/c/go/+/346589
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2021-08-31 21:49:48 +00:00