Module Name: src
Committed By: christos
Date: Wed Mar 21 14:17:22 UTC 2012
Modified Files:
src/usr.bin/xlint/lint1: tree.c
Log Message:
-0 is not unary overflow.
To generate a diff of this commit:
cvs rdiff -u -r1.68 -r1.69 src/usr.bin/xlint/lint1/tree.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/xlint/lint1/tree.c
diff -u src/usr.bin/xlint/lint1/tree.c:1.68 src/usr.bin/xlint/lint1/tree.c:1.69
--- src/usr.bin/xlint/lint1/tree.c:1.68 Sat Feb 5 12:14:14 2011
+++ src/usr.bin/xlint/lint1/tree.c Wed Mar 21 10:17:22 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: tree.c,v 1.68 2011/02/05 17:14:14 christos Exp $ */
+/* $NetBSD: tree.c,v 1.69 2012/03/21 14:17:22 christos Exp $ */
/*
* Copyright (c) 1994, 1995 Jochen Pohl
@@ -37,7 +37,7 @@
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: tree.c,v 1.68 2011/02/05 17:14:14 christos Exp $");
+__RCSID("$NetBSD: tree.c,v 1.69 2012/03/21 14:17:22 christos Exp $");
#endif
#include <stdlib.h>
@@ -2676,7 +2676,7 @@ fold(tnode_t *tn)
break;
case UMINUS:
q = -sl;
- if (msb(q, t, -1) == msb(sl, t, -1))
+ if (sl != 0 && msb(q, t, -1) == msb(sl, t, -1))
ovfl = 1;
break;
case COMPL:
