* rtlanal.c (remove_node_from_expr_list): Correctly update PREV.

From-SVN: r39541

* rtlanal.c (remove_node_from_expr_list): Correctly update PREV.
From-SVN: r39541
dd248abd · Richard Kenner · Richard Kenner · bd0d5d4a · dd248abd · dd248abd
Commit dd248abd authored Feb 08, 2001 by Richard Kenner Committed by Richard Kenner Feb 08, 2001
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gcc/ChangeLog
+4 -0

gcc/rtlanal.c
+5 -4

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+Thu Feb  8 11:21:28 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+	* rtlanal.c (remove_node_from_expr_list): Correctly update PREV.
+
 2001-02-08  Bernd Schmidt  <bernds@redhat.com>

 	* final.c (cleanup_subreg_operands): The address of a MEM can

--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -1596,11 +1596,10 @@ remove_note (insn, note)
  abort ();
 }

-/* Search LISTP (an EXPR_LIST) for NODE and remove NODE from the list
-   if it is found.
+/* Search LISTP (an EXPR_LIST) for an entry whose first operand is NODE and
+   remove that entry from the list if it is found.

-   A simple equality test is used to determine if NODE is on the
-   EXPR_LIST.  */
+   A simple equality test is used to determine if NODE matches.  */

 void
 remove_node_from_expr_list (node, listp)
@@ -1622,6 +1621,8 @@ remove_node_from_expr_list (node, listp)

 	  return;
 	}
+
+      prev = temp;
      temp = XEXP (temp, 1);
    }
 }