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

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?");
}