cmd/gc: fix warning on Plan 9

warning: src/cmd/gc/bits.c:101 non-interruptable temporary

Change-Id: I74661fefab50455b912b8085d913fc45ba13c5c8
Reviewed-on: https://go-review.googlesource.com/1780
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/cmd/gc/bits.c b/src/cmd/gc/bits.c
index fe9a168dcd17bb81aa0733084a4f9b706943a269..21e25dd1c950f8c51c4dca31b443f34edddcbbbf 100644 (file)
--- a/src/cmd/gc/bits.c
+++ b/src/cmd/gc/bits.c
@@ -97,9 +97,11 @@ bnum(Bits a)
        int i;
        uint64 b;
 
-       for(i=0; i<BITS; i++)
-               if(b = a.b[i])
+       for(i=0; i<BITS; i++){
+               b = a.b[i];
+               if(b)
                        return 64*i + bitno(b);
+       }
        fatal("bad in bnum");
        return 0;
 }