func visitBinOp(inst *ssa.BinOp, fr *frame) { switch inst.Op { case token.EQL: if selTuple, isSelTuple := fr.env.selIdx[inst.X]; isSelTuple { branchID := int(inst.Y.(*ssa.Const).Int64()) fr.env.selTest[inst] = struct { idx int tpl ssa.Value }{ branchID, selTuple, } } else { fmt.Fprintf(os.Stderr, " # %s = "+red("%s")+"\n", inst.Name(), inst.String()) } default: fmt.Fprintf(os.Stderr, " # %s = "+red("%s")+"\n", inst.Name(), inst.String()) } }