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runtime: replace some uses of newarray with newobject for maps

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This avoids the never triggered capacity checks in newarray.

Change-Id: Ib72b204adcb9e3fd3ab963defe0cd40e22d5d492
Reviewed-on: https://go-review.googlesource.com/54731
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Martin Möhrmann 2017-08-10 21:24:51 +02:00
parent 7df29b50b2
commit 248a7c7c42
2 changed files with 4 additions and 4 deletions
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2
src/runtime/hashmap.go
View File

@ -542,7 +542,7 @@ func mapassign(t *maptype, h *hmap, key unsafe.Pointer) unsafe.Pointer {
h.flags |= hashWriting
if h.buckets == nil {
h.buckets = newarray(t.bucket, 1)
h.buckets = newobject(t.bucket) // newarray(t.bucket, 1)
}
again:

6
src/runtime/hashmap_fast.go
View File

@ -426,7 +426,7 @@ func mapassign_fast32(t *maptype, h *hmap, key uint32) unsafe.Pointer {
h.flags |= hashWriting
if h.buckets == nil {
h.buckets = newarray(t.bucket, 1)
h.buckets = newobject(t.bucket) // newarray(t.bucket, 1)
}
again:
@ -514,7 +514,7 @@ func mapassign_fast64(t *maptype, h *hmap, key uint64) unsafe.Pointer {
h.flags |= hashWriting
if h.buckets == nil {
h.buckets = newarray(t.bucket, 1)
h.buckets = newobject(t.bucket) // newarray(t.bucket, 1)
}
again:
@ -603,7 +603,7 @@ func mapassign_faststr(t *maptype, h *hmap, ky string) unsafe.Pointer {
h.flags |= hashWriting
if h.buckets == nil {
h.buckets = newarray(t.bucket, 1)
h.buckets = newobject(t.bucket) // newarray(t.bucket, 1)
}
again: