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https://github.com/golang/go
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a34fddf46c
The table of rewrites in ssa/cse is not sized appropriately for ssa IDs that are created during copying of selects into new blocks. Fixes #17918 Change-Id: I65fe86c6aab5efa679aa473aadc4ee6ea882cd41 Reviewed-on: https://go-review.googlesource.com/33240 Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
42 lines
619 B
Go
42 lines
619 B
Go
// compile
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 17918: slice out-of-bounds in ssa/cse
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package dead
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import (
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"fmt"
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"time"
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)
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var (
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units = []struct {
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divisor time.Duration
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unit rune
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}{
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{1000000, 's'},
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{60, 'm'},
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{60, 'h'},
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{24, 'd'},
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{7, 'w'},
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}
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)
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func foobar(d time.Duration) string {
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d /= time.Microsecond
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unit := 'u'
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for _, f := range units {
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if d%f.divisor != 0 {
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break
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}
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d /= f.divisor
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unit = f.unit
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}
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return fmt.Sprintf("%d%c", d, unit)
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}
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