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authorJohn David Anglin <dave@hiauly1.hia.nrc.ca>2001-12-08 06:11:25 +0000
committerJohn David Anglin <danglin@gcc.gnu.org>2001-12-08 06:11:25 +0000
commitbe0063829a45521d1301ea74a087ee287d18c441 (patch)
treeda9f435f18289a00c1588b8b3d1e1f376ff54d46 /gcc/rtl.c
parente9d7407e3ac81500f38c70f04ad5aaa928765cd0 (diff)
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rtl.c (rtx_equal_p): Check for null pointers when comparing rtx strings.
* rtl.c (rtx_equal_p): Check for null pointers when comparing rtx strings. From-SVN: r47785
Diffstat (limited to 'gcc/rtl.c')
-rw-r--r--gcc/rtl.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/rtl.c b/gcc/rtl.c
index 3e73e4b..4d97bbd 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -670,7 +670,9 @@ rtx_equal_p (x, y)
case 'S':
case 's':
- if (strcmp (XSTR (x, i), XSTR (y, i)))
+ if ((XSTR (x, i) || XSTR (y, i))
+ && (! XSTR (x, i) || ! XSTR (y, i)
+ || strcmp (XSTR (x, i), XSTR (y, i))))
return 0;
break;