From: Jan Hubicka <jh@suse.cz>
Date: Mon, 31 Jul 2000 08:37:30 +0000 (+0000)
Subject: * recog.c (validate_replace_rtx_1): Do not abort for (nil) expression.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=22251f806bda549a6d6a740a738ad0ca405a4f52;p=gcc.git

* recog.c (validate_replace_rtx_1): Do not abort for (nil) expression.

From-SVN: r35368
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5c5ec118f75..4904cd3ff40 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Mon Jul 31 10:36:38 MET DST 2000 Jan Hubicka  <jh@suse.cz>
+
+	* recog.c (validate_replace_rtx_1): Do not abort for (nil) expression.
+
 2000-07-31  Geoff Keating  <geoffk@cygnus.com>
 
 	* c-parse.in (extdefs): Call ggc_collect between external
diff --git a/gcc/recog.c b/gcc/recog.c
index 9bbd10b3ddd..746c0f9b612 100644
--- a/gcc/recog.c
+++ b/gcc/recog.c
@@ -409,8 +409,11 @@ validate_replace_rtx_1 (loc, from, to, object)
   register int i, j;
   register const char *fmt;
   register rtx x = *loc;
-  enum rtx_code code = GET_CODE (x);
+  enum rtx_code code;
 
+  if (!x)
+    return;
+  code = GET_CODE (x);
   /* X matches FROM if it is the same rtx or they are both referring to the
      same register in the same mode.  Avoid calling rtx_equal_p unless the
      operands look similar.  */