tcg: always mark dead input arguments as dead

Always mark dead input arguments as dead, even if the op is at the basic
block end. This will allow to check that all temps are correctly saved.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

diff --git a/tcg/tcg.c b/tcg/tcg.c
index b219a6d227bdf2aced02d06888a70365a1d08724..d81b62883aba58524b5eda3314e8a2349b524266 100644 (file)
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1874,16 +1874,16 @@ static void tcg_reg_alloc_op(TCGContext *s,
     iarg_end: ;
     }
     
+    /* mark dead temporaries and free the associated registers */
+    for (i = nb_oargs; i < nb_oargs + nb_iargs; i++) {
+        if (IS_DEAD_ARG(i)) {
+            temp_dead(s, args[i]);
+        }
+    }
+
     if (def->flags & TCG_OPF_BB_END) {
         tcg_reg_alloc_bb_end(s, allocated_regs);
     } else {
-        /* mark dead temporaries and free the associated registers */
-        for(i = nb_oargs; i < nb_oargs + nb_iargs; i++) {
-            if (IS_DEAD_ARG(i)) {
-                temp_dead(s, args[i]);
-            }
-        }
-        
         if (def->flags & TCG_OPF_CALL_CLOBBER) {
             /* XXX: permit generic clobber register list ? */ 
             for(reg = 0; reg < TCG_TARGET_NB_REGS; reg++) {