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| author | khr@golang.org <khr@golang.org> | 2024-10-31 10:10:08 -0700 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2024-11-01 20:10:31 +0000 |
| commit | 378c48e6c7c9f62c80b4d627302fda978ece2a1d (patch) | |
| tree | 750ac36f68fdfd8bfee9b2d22172c8f488e18e82 /src/internal/runtime/maps/map.go | |
| parent | 900578d09c42eef2fa5139246794ac6f3aff2e0a (diff) | |
| download | go-378c48e6c7c9f62c80b4d627302fda978ece2a1d.tar.xz | |
internal/runtime/maps: use matchEmptyOrDeleted instead of matchEmpty
It's a bit more efficient.
Change-Id: If813a597516c41fdac6f60e586641d0ee1cde025
Reviewed-on: https://go-review.googlesource.com/c/go/+/623818
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Diffstat (limited to 'src/internal/runtime/maps/map.go')
| -rw-r--r-- | src/internal/runtime/maps/map.go | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/internal/runtime/maps/map.go b/src/internal/runtime/maps/map.go index 262f20f5cb..4643960247 100644 --- a/src/internal/runtime/maps/map.go +++ b/src/internal/runtime/maps/map.go @@ -554,9 +554,10 @@ func (m *Map) putSlotSmall(typ *abi.SwissMapType, hash uintptr, key unsafe.Point match = match.removeFirst() } - // No need to look for deleted slots, small maps can't have them (see - // deleteSmall). - match = g.ctrls().matchEmpty() + // There can't be deleted slots, small maps can't have them + // (see deleteSmall). Use matchEmptyOrDeleted as it is a bit + // more efficient than matchEmpty. + match = g.ctrls().matchEmptyOrDeleted() if match == 0 { fatal("small map with no empty slot (concurrent map writes?)") } |