Comment out an unsed function to avoid a compiler warning.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2903 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/priv/ir_opt.c b/priv/ir_opt.c
index ded3018..d1fe9ad 100644
--- a/priv/ir_opt.c
+++ b/priv/ir_opt.c
@@ -1178,13 +1178,16 @@
                   && e->Iex.Const.con->Ico.U32 == 0);
 }
 
-/* Is this literally IRExpr_Const(IRConst_U64(0)) ? */
+/* Is this literally IRExpr_Const(IRConst_U64(0)) ?
+   Currently unused; commented out to avoid compiler warning */
+#if 0
 static Bool isZeroU64 ( IRExpr* e )
 {
    return toBool( e->tag == Iex_Const 
                   && e->Iex.Const.con->tag == Ico_U64
                   && e->Iex.Const.con->Ico.U64 == 0);
 }
+#endif
 
 /* Is this literally IRExpr_Const(IRConst_V128(0)) ? */
 static Bool isZeroV128 ( IRExpr* e )