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Mark aliases as live when a label is attached to a leaf node.

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This fixes the lost return values in the menus.
This commit is contained in:
Bill Currie 2012-12-13 21:20:21 +09:00
parent a7b7a114bc
commit dc55034708
1 changed files with 18 additions and 0 deletions
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18
tools/qfcc/source/dags.c
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@ -437,6 +437,15 @@ dag_kill_aliases (daglabel_t *l)
}
}
static int
dag_live_aliases (def_t *def, void *_d)
{
if (def != _d && def->daglabel)
def->daglabel->live = 1;
return 0;
}
static void
dagnode_attach_label (dagnode_t *n, daglabel_t *l)
{
@ -456,6 +465,15 @@ dagnode_attach_label (dagnode_t *n, daglabel_t *l)
l->dagnode = n;
set_add (n->identifiers, l->number);
dag_kill_aliases (l);
if (n->label->op) {
// FIXME temps
// FIXME it would be better to propogate the aliasing
if (n->label->op->op_type == op_def
&& (n->label->op->o.def->alias
|| n->label->op->o.def->alias_defs))
def_visit_all (n->label->op->o.def, 1, dag_live_aliases,
n->label->op->o.def);
}
}
static int