idk

parse.c

@@ -53,6 +53,7 @@ enum Token {
 	Tphi,
 	Tjmp,
 	Tjnz,
+        Ttail,
 	Tret,
 	Thlt,
 	Texport,
@@ -113,6 +114,7 @@ static char *kwmap[Ntok] = {
 	[Tphi] = "phi",
 	[Tjmp] = "jmp",
 	[Tjnz] = "jnz",
+	[Ttail] = "tail",
 	[Tret] = "ret",
 	[Thlt] = "hlt",
 	[Texport] = "export",
@@ -664,6 +666,9 @@ parseline(PState ps)
 			curb->jmp.arg = r;
 		}
 		goto Close;
+	case Ttail:
+	  curb->jmp.type = Jtail;
+	  goto Close;
 	case Tjmp:
 		curb->jmp.type = Jjmp;
 		goto Jump;
@@ -1434,6 +1439,9 @@ printfn(Fn *fn, FILE *f)
 			if (b->s1 != b->link)
 				fprintf(f, "\tjmp @%s\n", b->s1->name);
 			break;
+		case Jtail:
+		  fprintf (f, "\ttail\n");
+		  break;
 		default:
 			fprintf(f, "\t%s ", jtoa[b->jmp.type]);
 			if (b->jmp.type == Jjnz) {