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go/test/fixedbugs/issue12347.go

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[dev.ssa] cmd/compile/internal/ssa: handle dead code a different way Instead of trying to delete dead code as soon as we find it, just mark it as dead using a PlainAndDead block kind. The deadcode pass will do the real removal. This way is somewhat more efficient because we don't need to mess with successor and predecessor lists of all the dead blocks. Fixes #12347 Change-Id: Ia42d6b5f9cdb3215a51737b3eb117c00bd439b13 Reviewed-on: https://go-review.googlesource.com/14033 Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-08-28 17:45:17 -06:00
// compile
all: make copyright headers consistent with one space after period Follows suit with https://go-review.googlesource.com/#/c/20111. Generated by running $ grep -R 'Go Authors. All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go Authors. All/Go Authors. All/g' $F;done The code in cmd/internal/unvendor wasn't changed. Fixes #15213 Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f Reviewed-on: https://go-review.googlesource.com/21819 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-10 15:32:26 -06:00
// Copyright 2015 The Go Authors. All rights reserved.
[dev.ssa] cmd/compile/internal/ssa: handle dead code a different way Instead of trying to delete dead code as soon as we find it, just mark it as dead using a PlainAndDead block kind. The deadcode pass will do the real removal. This way is somewhat more efficient because we don't need to mess with successor and predecessor lists of all the dead blocks. Fixes #12347 Change-Id: Ia42d6b5f9cdb3215a51737b3eb117c00bd439b13 Reviewed-on: https://go-review.googlesource.com/14033 Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-08-28 17:45:17 -06:00
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package p
func f_ssa(x int, p *int) {
if false {
y := x + 5
for {
*p = y
}
}
}
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