VCMPGTUHCC:     "vcmpgtuh.",
	VCMPGTUW:       "vcmpgtuw",
	VCMPGTUWCC:     "vcmpgtuw.",
	VCTSXS:         "vctsxs",
	VCTUXS:         "vctuxs",
	VEXPTEFP:       "vexptefp",
	VLOGEFP:        "vlogefp",
	VMADDFP:        "vmaddfp",
	VMAXFP:         "vmaxfp",
	VMAXSB:         "vmaxsb",
	VMAXSH:         "vmaxsh",
	VMAXSW:         "vmaxsw",
	VMAXUB:         "vmaxub",
	VMAXUH:         "vmaxuh",

	ctx, cancel := cc.t.contextWithTimeout(context.Background(), pingTimeout)
	defer cancel()
	cc.vlogf("http2: Transport sending health check")
	err := cc.Ping(ctx)
	if err != nil {
		cc.vlogf("http2: Transport health check failure: %v", err)
		cc.closeForLostPing()
	} else {
		cc.vlogf("http2: Transport health check success")
	}
}