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Don't kill the node to which an alias is being assigned.

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This does not fix the lost return value the menus as that is caused by the
alias not being marked live when it should be.
This commit is contained in:
Bill Currie 2012-12-13 21:06:04 +09:00
parent 3e38c4aa48
commit a7b7a114bc
1 changed files with 6 additions and 3 deletions
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9
tools/qfcc/source/dags.c
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@ -406,11 +406,14 @@ op_is_identifier (operand_t *op)
}
static int
dag_kill_aliases_visit (def_t *def, void *_node)
dag_kill_aliases_visit (def_t *def, void *_l)
{
dagnode_t *node = (dagnode_t *) _node;
daglabel_t *l = (daglabel_t *) _l;
dagnode_t *node = l->dagnode;;
daglabel_t *label;
if (def == l->op->o.def)
return 0;
label = def->daglabel;
if (label && label->dagnode) {
set_add (node->edges, label->dagnode->number);
@ -428,7 +431,7 @@ dag_kill_aliases (daglabel_t *l)
if (op->op_type == op_temp) {
} else if (op->op_type == op_def) {
if (op->o.def->alias || op->o.def->alias_defs)
def_visit_all (op->o.def, 1, dag_kill_aliases_visit, l->dagnode);
def_visit_all (op->o.def, 1, dag_kill_aliases_visit, l);
} else {
internal_error (0, "rvalue assignment?");
}