From: bal <none@none>
Date: Wed, 18 Sep 1985 16:27:29 +0000 (+0000)
Subject: bug fixed: last instruction of first block in block fusion optimization
X-Git-Tag: release-5-5~5413
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=a18c5dd9c4a2c1851e7a31fbad638fc19b7e5bc7;p=ack.git

bug fixed: last instruction of first block in block fusion optimization
can be a conditional branch. (bug detected by Ceriel).
---

diff --git a/util/ego/bo/bo.c b/util/ego/bo/bo.c
index 693d67ed1..bcefd098d 100644
--- a/util/ego/bo/bo.c
+++ b/util/ego/bo/bo.c
@@ -192,7 +192,9 @@ STATIC mv_code(b1,b2)
 	l = last_code(b2->b_start,TRUE);
 	DLINK(l,b1->b_start);
 	x = l->l_next;
-	if (INSTR(l) == op_bra) {
+	if (TYPE(l) == OPINSTRLAB) {
+		assert(INSTR(x) == op_lab);
+		assert(INSTRLAB(l) == INSTRLAB(x));
 		rm_line(l,b2);
 	}
 	if (INSTR(x) == op_lab) {