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cmd/compile: extra zero initialization in &T{} #15391

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randall77 opened this issue Apr 20, 2016 · 2 comments
Closed

cmd/compile: extra zero initialization in &T{} #15391

randall77 opened this issue Apr 20, 2016 · 2 comments
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FrozenDueToAge Performance
Milestone
Go1.8

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@randall77
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type T struct {
    a, b int
}
func f() *T {
    return new(T)
}
func g() *T {
    return &T{}
}

f just calls newobject and returns the result.
g calls newobject, writes two zeros to the result, then returns it. Those zero writes are unnecessary.
@randall77 randall77 added this to the Go1.8 milestone Apr 20, 2016
@ghost
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ghost commented Apr 20, 2016

Previously reported here: #15199

@randall77
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Closing as duplicate.

@golang golang locked and limited conversation to collaborators Apr 20, 2017
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FrozenDueToAge Performance
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@randall77 @gopherbot