const runtime.repmovsPreferred 2 uses runtime (current package) cpuflags_amd64.go#L19: repmovsPreferred = 1 << 1 cpuflags_amd64.go#L36: memmoveBits |= repmovsPreferred
The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)