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tcg: mark dead output argument in op_dead_args

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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 <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-05-17 18:25:45 +02:00
parent 866cb6cb21
commit 6b64b624cd
1 changed files with 8 additions and 2 deletions
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10
tcg/tcg.c
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@ -1245,8 +1245,12 @@ static void tcg_liveness_analysis(TCGContext *s)
do_not_remove_call: do_not_remove_call:
/* output args are dead */ /* output args are dead */
dead_args = 0;
for(i = 0; i < nb_oargs; i++) { for(i = 0; i < nb_oargs; i++) {
arg = args[i]; arg = args[i];
if (dead_temps[arg]) {
dead_args |= (1 << i);
}
dead_temps[arg] = 1; dead_temps[arg] = 1;
} }
@ -1256,7 +1260,6 @@ static void tcg_liveness_analysis(TCGContext *s)
} }
/* input args are live */ /* input args are live */
dead_args = 0;
for(i = nb_oargs; i < nb_iargs + nb_oargs; i++) { for(i = nb_oargs; i < nb_iargs + nb_oargs; i++) {
arg = args[i]; arg = args[i];
if (arg != TCG_CALL_DUMMY_ARG) { if (arg != TCG_CALL_DUMMY_ARG) {
@ -1313,8 +1316,12 @@ static void tcg_liveness_analysis(TCGContext *s)
do_not_remove: do_not_remove:
/* output args are dead */ /* output args are dead */
dead_args = 0;
for(i = 0; i < nb_oargs; i++) { for(i = 0; i < nb_oargs; i++) {
arg = args[i]; arg = args[i];
if (dead_temps[arg]) {
dead_args |= (1 << i);
}
dead_temps[arg] = 1; dead_temps[arg] = 1;
} }
@ -1327,7 +1334,6 @@ static void tcg_liveness_analysis(TCGContext *s)
} }
/* input args are live */ /* input args are live */
dead_args = 0;
for(i = nb_oargs; i < nb_oargs + nb_iargs; i++) { for(i = nb_oargs; i < nb_oargs + nb_iargs; i++) {
arg = args[i]; arg = args[i];
if (dead_temps[arg]) { if (dead_temps[arg]) {