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// compile
// Copyright 2018 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.
package r
// f compiles into code where no stores remain in the two successors
// of a write barrier block; i.e., they are empty. Pre-fix, this
// results in an unexpected input to markUnsafePoints, that expects to
// see a pair of non-empty plain blocks.
func f() {
var i int
var s string
for len(s) < len(s) {
i++
s = "a"
}
var b bool
var sa []string
for true {
sa = []string{""}
for b || i == 0 {
}
b = !b
_ = sa
}
}
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