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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 main
func f() {
var s string
var p, q bool
s = "a"
for p {
p = false == (true != q)
s = ""
}
_ = s == "bbb"
}
// Another case: load from negative offset of a symbol
// in dead code (issue 30257).
func g() {
var i int
var s string
if true {
s = "a"
}
if f := 0.0; -f < 0 {
i = len(s[:4])
}
_ = s[i-1:0] != "bb" && true
}
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