const runtime.addrBits

3 uses

	runtime (current package)
		tagptr_64bit.go#L29: 	addrBits = 48
		tagptr_64bit.go#L34: 	tagBits = 64 - addrBits + 3
		tagptr_64bit.go#L67: 	return taggedPointer(uint64(uintptr(ptr))<<(64-addrBits) | uint64(tag&(1<<tagBits-1)))

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)