avoid memcpy(x, x),

which valgrind complains about. R=ken OCL=23990 CL=23990

avoid memcpy(x, x),
which valgrind complains about. R=ken OCL=23990 CL=23990
9e735985 · Russ Cox · 6dd93bbf · 9e735985
Commit 9e735985 authored Jan 31, 2009 by Russ Cox
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walk.c src/cmd/gc/walk.c +1 -1

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--- a/src/cmd/gc/walk.c
+++ b/src/cmd/gc/walk.c
@@ -170,7 +170,7 @@ loop:
 void
 indir(Node *nl, Node *nr)
 {
-	if(nr != N)
+	if(nr != N && nl != nr)
 		*nl = *nr;
 }