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go/test/fixedbugs/issue38496.go
Josh Bleecher Snyder 29d925dfcf test: add test for nil check / bounds check compiler confusion
This test started failing at CL 228106 and was fixed by CL 228677.

Fixes #38496

Change-Id: I2dadcd99227347e8d28179039f5f345e728c4595
Reviewed-on: https://go-review.googlesource.com/c/go/+/228698
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2020-04-17 04:26:54 +00:00

21 lines
440 B
Go

// run
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Make sure bounds check elision isn't confused with nil check elision.
package main
func main() {
defer func() {
err := recover()
if err == nil {
panic("failed to check nil ptr")
}
}()
var m [2]*int
_ = *m[1] // need a nil check, but not a bounds check
}