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6300161d40
Fold MOVDaddr ops into MOVXstorezero ops.
Also fold ADDconst into MOVDaddr so we're sure there isn't
(MOVDstorezero (ADDconst (MOVDaddr ..)))
Without this CL, we get:
v1 = MOVDaddr {s}
v2 = VARDEF {s}
v3 = MOVDstorezero v1 v2
The liveness pass thinks the MOVDaddr is a read of s, so s is
incorrectly thought to be live at the start of the function.
Fixes #17194
Change-Id: I2b4a2f13b12aa5b072941ee1c7b89f3793650cdc
Reviewed-on: https://go-review.googlesource.com/30086
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Michael Munday <munday@ca.ibm.com>
18 lines
303 B
Go
18 lines
303 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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package foo
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func f(x []interface{}) (err error) {
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for _, d := range x {
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_, ok := d.(*int)
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if ok {
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return
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}
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}
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return
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}
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