inldata := funcdata(f, abi.FUNCDATA_InlTree)
	if inldata == nil {
		return inlineUnwinder{f: f}, inlineFrame{pc: pc, index: -1}
	}
	inlTree := (*[1 << 20]inlinedCall)(inldata)
	u := inlineUnwinder{f: f, inlTree: inlTree}
	return u, u.resolveInternal(pc)
}

func (u *inlineUnwinder) resolveInternal(pc uintptr) inlineFrame {
	return inlineFrame{
		pc: pc,