cmd/gc: minor code simplification

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/68980044

diff --git a/src/cmd/gc/plive.c b/src/cmd/gc/plive.c
index 1502d3d1ace8ca16bfc4e31f6e557d8f169d9695..4a72e612e2206d88025e0e406f8d5b0dc6de0c6f 100644 (file)
--- a/src/cmd/gc/plive.c
+++ b/src/cmd/gc/plive.c
@@ -984,7 +984,7 @@ checkparam(Node *fn, Prog *p, Node *n)
                return;
        for(l = fn->dcl; l != nil; l = l->next) {
                a = l->n;
-               class = l->n->class & ~PHEAP;
+               class = a->class & ~PHEAP;
                if(a->op == ONAME && (class == PPARAM || class == PPARAMOUT) && a == n)
                        return;
        }