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master
test/fixedbugs/issue29215.go
35 строк
596 B
Cherry Zhang
cmd/compile: guard against loads with negative offset from readonly constants
16 фев 2019, 05:02
16 фев 2019, 05:02
dca707b
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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 }