Prevent superfluous label generation

diff --git a/util/ego/cj/cj.c b/util/ego/cj/cj.c
index 56bbe41..12f8976 100644 (file)
--- a/util/ego/cj/cj.c
+++ b/util/ego/cj/cj.c
@@ -181,15 +181,24 @@ STATIC jump_cross(l1,l2,b1,b2)
 
        /* Now adjust the EM text */
        l = PREV(l1);
+       while (l && INSTR(l) == op_lab) {
+               l1 = l;
+               l = PREV(l);
+       }
        if (l == (line_p) 0) {
                b1->b_start = (line_p) 0;
        } else {
                l->l_next = (line_p) 0;
        }
-       l = newline(OPINSTRLAB);
-       l->l_instr = op_lab;
-       INSTRLAB(l) = freshlabel();
-       DLINK(l,l1);
+       if (INSTR(l1) == op_lab) {
+               l = l1;
+       }
+       else {
+               l = newline(OPINSTRLAB);
+               l->l_instr = op_lab;
+               INSTRLAB(l) = freshlabel();
+               DLINK(l,l1);
+       }
        b->b_start = l;
        for (l = l2; INSTR(l) != op_bra; l = l->l_next) {
                assert (l != (line_p) 0);