func libfuzzerTraceConstCmp1(uint8, uint8, uint)
func libfuzzerTraceConstCmp2(uint16, uint16, uint)
func libfuzzerTraceConstCmp4(uint32, uint32, uint)
func libfuzzerTraceConstCmp8(uint64, uint64, uint)
func libfuzzerHookStrCmp(string, string, uint)
func libfuzzerHookEqualFold(string, string, uint)

func addCovMeta(p unsafe.Pointer, len uint32, hash [16]byte, pkpath string, pkgId int, cmode uint8, cgran uint8) uint32

	{"libfuzzerTraceConstCmp1", funcTag, 149},
	{"libfuzzerTraceConstCmp2", funcTag, 150},
	{"libfuzzerTraceConstCmp4", funcTag, 151},
	{"libfuzzerTraceConstCmp8", funcTag, 152},
	{"libfuzzerHookStrCmp", funcTag, 153},
	{"libfuzzerHookEqualFold", funcTag, 153},
	{"addCovMeta", funcTag, 155},
	{"x86HasPOPCNT", varTag, 6},
	{"x86HasSSE41", varTag, 6},
	{"x86HasFMA", varTag, 6},
	{"armHasVFPv4", varTag, 6},

}

func walkCompareString(n *ir.BinaryExpr, init *ir.Nodes) ir.Node {
	if base.Debug.Libfuzzer != 0 {
		if !ir.IsConst(n.X, constant.String) || !ir.IsConst(n.Y, constant.String) {
			fn := "libfuzzerHookStrCmp"
			n.X = cheapExpr(n.X, init)
			n.Y = cheapExpr(n.Y, init)
			paramType := types.Types[types.TSTRING]