golang issue40746 代码
文件路径：/test/fixedbugs/issue40746.go
/ compile
/ 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.
package p
func f(x byte, b bool) byte {
var c byte
if b {
c = 1
}
if int8(c) < 0 {
x++
}
return x
}