const internal/abi.bitsetLSB
2 uses
internal/abi (current package)
map_swiss.go#L26: bitsetLSB = 0x0101010101010101
map_swiss.go#L29: SwissMapCtrlEmpty = bitsetLSB * uint64(ctrlEmpty)
The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)