5g: fix set but not used error

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4816061

diff --git a/src/cmd/5g/ggen.c b/src/cmd/5g/ggen.c
index e2f0e6bc0ac417436cc4eaffb001a01f6528bcde..3f5f47e7bdccf79771dacf444604b99de205dc46 100644 (file)
--- a/src/cmd/5g/ggen.c
+++ b/src/cmd/5g/ggen.c
@@ -472,7 +472,7 @@ cgen_shift(int op, Node *nl, Node *nr, Node *res)
 {
        Node n1, n2, n3, nt, t, lo, hi;
        int w;
-       Prog *p1, *p2, *p3, *pbig;
+       Prog *p1, *p2, *p3;
        Type *tr;
        uvlong sc;
 
@@ -505,7 +505,6 @@ cgen_shift(int op, Node *nl, Node *nr, Node *res)
                return;
        }
 
-       pbig = P;
        tr = nr->type;
        if(tr->width > 4) {
                tempname(&nt, nr->type);