Aren/NetBSD
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Fix a hairy optimizer bug that causes the expression:

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'ip and ((icmp and dst host 1.1.1.1 and not host 2.2.2.2) or (host 1.1.1.1 and src host 3.3.3.3))'
to compile incorrectly.  Details about to be mailed to LBL.
This commit is contained in:
mycroft 1997-09-28 09:41:53 +00:00
parent 5982e278af
commit e264e9c91d
1 changed files with 5 additions and 2 deletions
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7
lib/libpcap/optimize.c
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@ -1,4 +1,4 @@
/* $NetBSD: optimize.c,v 1.5 1996/12/13 08:26:08 mikel Exp $ */
/* $NetBSD: optimize.c,v 1.6 1997/09/28 09:41:53 mycroft Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994, 1995, 1996
@ -1475,6 +1475,8 @@ opt_blks(root, do_stmts)
init_val();
maxlevel = root->level;
find_inedges(root);
for (i = maxlevel; i >= 0; --i)
for (p = levels[i]; p; p = p->link)
opt_blk(p, do_stmts);
@ -1492,6 +1494,8 @@ opt_blks(root, do_stmts)
opt_j(&p->ef);
}
}
find_inedges(root);
for (i = 1; i <= maxlevel; ++i) {
for (p = levels[i]; p; p = p->link) {
or_pullup(p);
@ -1571,7 +1575,6 @@ opt_loop(root, do_stmts)
find_levels(root);
find_dom(root);
find_closure(root);
find_inedges(root);
find_ud(root);
find_edom(root);
opt_blks(root, do_stmts);