s.sb = s.entryNewValue0(ssa.OpSB, types.Types[types.TUINTPTR])

	s.startBlock(s.f.Entry)
	s.vars[memVar] = s.startmem
	if s.hasOpenDefers {
		// Create the deferBits variable and stack slot.  deferBits is a
		// bitmask showing which of the open-coded defers in this function
		// have been activated.
		deferBitsTemp := typecheck.TempAt(src.NoXPos, s.curfn, types.Types[types.TUINT8])
		deferBitsTemp.SetAddrtaken(true)

}

func (t http2FrameType) String() string {
	if s, ok := http2frameName[t]; ok {
		return s
	}
	return fmt.Sprintf("UNKNOWN_FRAME_TYPE_%d", uint8(t))
}

// Flags is a bitmask of HTTP/2 flags.
// The meaning of flags varies depending on the frame type.
type http2Flags uint8

// Has reports whether f contains all (0 or more) flags in v.
func (f http2Flags) Has(v http2Flags) bool {