From 6b64b624cde336f3df1146483e7858f5fa814f95 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Tue, 17 May 2011 18:25:45 +0200 Subject: tcg: mark dead output argument in op_dead_args If an op is not removed and has dead output arguments, mark it in op_dead_args similarly to what is done for input arguments. Signed-off-by: Aurelien Jarno --- tcg/tcg.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'tcg/tcg.c') diff --git a/tcg/tcg.c b/tcg/tcg.c index 9a48cb9ff8..82d3e1db77 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1245,8 +1245,12 @@ static void tcg_liveness_analysis(TCGContext *s) do_not_remove_call: /* output args are dead */ + dead_args = 0; for(i = 0; i < nb_oargs; i++) { arg = args[i]; + if (dead_temps[arg]) { + dead_args |= (1 << i); + } dead_temps[arg] = 1; } @@ -1256,7 +1260,6 @@ static void tcg_liveness_analysis(TCGContext *s) } /* input args are live */ - dead_args = 0; for(i = nb_oargs; i < nb_iargs + nb_oargs; i++) { arg = args[i]; if (arg != TCG_CALL_DUMMY_ARG) { @@ -1313,8 +1316,12 @@ static void tcg_liveness_analysis(TCGContext *s) do_not_remove: /* output args are dead */ + dead_args = 0; for(i = 0; i < nb_oargs; i++) { arg = args[i]; + if (dead_temps[arg]) { + dead_args |= (1 << i); + } dead_temps[arg] = 1; } @@ -1327,7 +1334,6 @@ static void tcg_liveness_analysis(TCGContext *s) } /* input args are live */ - dead_args = 0; for(i = nb_oargs; i < nb_oargs + nb_iargs; i++) { arg = args[i]; if (dead_temps[arg]) { -- cgit v1.2.1