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>

tcg/tcg.c

diff --git a/tcg/tcg.c b/tcg/tcg.c
index b219a6d..d81b628 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1874,16 +1874,16 @@
     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++) {