diff options
| -rw-r--r-- | tcg/tcg.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c index 4a6eb26d0a..7e088b1f28 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1387,16 +1387,20 @@ static void tcg_liveness_analysis(TCGContext *s) memset(dead_temps, 1, s->nb_globals); } - /* input args are live */ + /* record arguments that die in this helper */ for (i = nb_oargs; i < nb_iargs + nb_oargs; i++) { arg = args[i]; if (arg != TCG_CALL_DUMMY_ARG) { if (dead_temps[arg]) { dead_args |= (1 << i); } - dead_temps[arg] = 0; } } + /* input arguments are live for preceeding opcodes */ + for (i = nb_oargs; i < nb_oargs + nb_iargs; i++) { + arg = args[i]; + dead_temps[arg] = 0; + } s->op_dead_args[oi] = dead_args; s->op_sync_args[oi] = sync_args; } @@ -1531,12 +1535,16 @@ static void tcg_liveness_analysis(TCGContext *s) memset(mem_temps, 1, s->nb_globals); } - /* input args are live */ + /* record arguments that die in this opcode */ for (i = nb_oargs; i < nb_oargs + nb_iargs; i++) { arg = args[i]; if (dead_temps[arg]) { dead_args |= (1 << i); } + } + /* input arguments are live for preceeding opcodes */ + for (i = nb_oargs; i < nb_oargs + nb_iargs; i++) { + arg = args[i]; dead_temps[arg] = 0; } s->op_dead_args[oi] = dead_args; |