{makeLico(1, 0).withXlogue(PosDefaultLogue), ":1" + defs + defp, 1, 0},
		{makeLico(1, 0).withXlogue(PosPrologueEnd), ":1" + defs + pro, 1, 0},
		{makeLico(1, 0).withXlogue(PosEpilogueBegin), ":1" + defs + epi, 1, 0},

		{makeLico(1, 1).withXlogue(PosDefaultLogue), ":1:1" + defs + defp, 1, 1},
		{makeLico(1, 1).withXlogue(PosPrologueEnd), ":1:1" + defs + pro, 1, 1},

		panic("Assigning a bogus line to XPos with no file will cause mysterious downstream failures.")
	}
	p.lico = makeBogusLico()
	return p
}

// WithXlogue returns the same location but marked with DWARF function prologue/epilogue
func (p XPos) WithXlogue(x PosXlogue) XPos {
	p.lico = p.lico.withXlogue(x)
	return p
}

// LineNumber returns a string for the line number, "?" if it is not known.
func (p XPos) LineNumber() string {

}

// withIsStmt returns a lico for the same location, tagged as definitely a statement
func (x lico) withIsStmt() lico {
	return x.withStmt(PosIsStmt)
}

// withXlogue attaches a prologue/epilogue attribute to a lico
func (x lico) withXlogue(xlogue PosXlogue) lico {
	if x == 0 {
		if xlogue == 0 {
			return x
		}
		// Normalize 0 to "not a statement"
		x = lico(PosNotStmt << isStmtShift)
	}

				q1.As = AMOVD
				q1.From.Type = obj.TYPE_REG
				q1.From.Reg = REGFP
				q1.To.Type = obj.TYPE_MEM
				q1.To.Reg = REGSP
				q1.To.Offset = -8
			}

			prologueEnd.Pos = prologueEnd.Pos.WithXlogue(src.PosPrologueEnd)

			q1 = obj.Appendp(q1, c.newprog)
			q1.Pos = p.Pos
			q1.As = ASUB
			q1.From.Type = obj.TYPE_CONST
			q1.From.Offset = 8
			q1.Reg = REGSP
			q1.To.Type = obj.TYPE_REG

					q.From.Offset = int64(-autosize)
					q.To.Type = obj.TYPE_REG
					q.To.Reg = REGSP
					q.Spadj = +autosize

					q = c.ctxt.EndUnsafePoint(q, c.newprog, -1)
				}
				prologueEnd.Pos = prologueEnd.Pos.WithXlogue(src.PosPrologueEnd)
			} else if c.cursym.Func().Text.Mark&LEAF == 0 {
				// A very few functions that do not return to their caller
				// (e.g. gogo) are not identified as leaves but still have
				// no frame.

	}

	// Delve debugger would like the next instruction to be noted as the end of the function prologue.
	// TODO: are there other cases (e.g., wrapper functions) that need marking?
	if autoffset != 0 {
		p.Pos = p.Pos.WithXlogue(src.PosPrologueEnd)
	}

	if cursym.Func().Text.From.Sym.Wrapper() {
		// if g._panic != nil && g._panic.argp == FP {
		//   g._panic.argp = bottom-of-frame
		// }
		//
		//	MOVQ g_panic(g), regEntryTmp0