cmd/gc: fix set but not used error

R=rsc, r
CC=golang-dev
https://golang.org/cl/13749044

diff --git a/src/cmd/gc/popt.c b/src/cmd/gc/popt.c
index 22ea73eb6077c92d193002c2339c5d568fecb109..8d7afa01114aafbd11d95aa822cb488080d8c6bb 100644 (file)
--- a/src/cmd/gc/popt.c
+++ b/src/cmd/gc/popt.c
@@ -795,7 +795,6 @@ nilopt(Prog *firstp)
 {
        NilFlow *r;
        Prog *p;
-       uint32 gen;
        Graph *g;
        int ncheck, nkill;
 
@@ -806,7 +805,6 @@ nilopt(Prog *firstp)
        if(debug_checknil > 1 /* || strcmp(curfn->nname->sym->name, "f1") == 0 */)
                dumpit("nilopt", g->start, 0);
 
-       gen = 0;
        ncheck = 0;
        nkill = 0;
        for(r = (NilFlow*)g->start; r != nil; r = (NilFlow*)r->f.link) {