const runtime/internal/sys.GoarchAmd64

3 uses

	runtime/internal/sys (current package)
		zgoarch_amd64.go#L10: const GoarchAmd64 = 1

	runtime
		malloc.go#L305: 	arenaBaseOffset = 0xffff800000000000*sys.GoarchAmd64 + 0x0a00000000000000*sys.GoosAix
		trace.go#L88: 	traceTickDiv = 16 + 48*(sys.Goarch386|sys.GoarchAmd64)