pan/bi: Use canonical next_clause_prefetch

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7081>
diff --git a/src/panfrost/bifrost/compiler.h b/src/panfrost/bifrost/compiler.h
index eaacf74..c13a7e9 100644
--- a/src/panfrost/bifrost/compiler.h
+++ b/src/panfrost/bifrost/compiler.h
@@ -400,7 +400,10 @@
          * the emitted code it's always set if back-to-bit is, whereas we use
          * the actual value (without back-to-back so to speak) internally */
         bool back_to_back;
-        bool branch_conditional;
+
+        /* Can we prefetch the next clause? Usually it makes sense, except for
+         * clauses ending in unconditional branches */
+        bool next_clause_prefetch;
 
         /* Assigned data register */
         unsigned data_register;