diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index accc7f252fe..3c3b3a1bbeb 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2091,6 +2091,12 @@ fs_visitor::compute_to_mrf()
 	       break;
 	    }
 
+            /* Things returning more than one register would need us to
+             * understand coalescing out more than one MOV at a time.
+             */
+            if (scan_inst->regs_written() > 1)
+               break;
+
 	    /* SEND instructions can't have MRF as a destination. */
 	    if (scan_inst->mlen)
 	       break;