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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>
This commit is contained in:
Aurelien Jarno 2012-10-09 21:53:07 +02:00
parent c29c1d7edf
commit a52ad07e7c
1 changed files with 7 additions and 7 deletions
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14
tcg/tcg.c
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@ -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++) {