var pfxEnabled = false // ISA 3.1 prefixed instructions are supported.
var buildOpCfg = ""    // Save the os/cpu/arch tuple used to configure the assembler in buildop

// padding bytes to add to align code as requested.
func addpad(pc, a int64, ctxt *obj.Link, cursym *obj.LSym) int {
	switch a {
	case 8, 16, 32, 64:
		// By default function alignment is 16. If an alignment > 16 is
		// requested then the function alignment must also be promoted.