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Treat global vars as always live.

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This fixes the infloop.r test.
This commit is contained in:
Bill Currie 2012-11-24 14:56:30 +09:00
parent 2478b053de
commit 738fc65e0f
1 changed files with 2 additions and 0 deletions
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2
tools/qfcc/source/dags.c
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@ -387,6 +387,8 @@ dag_remove_dead_vars (dag_t *dag, set_t *live_vars)
var = flow_get_var (l->op);
if (!var)
continue;
if (set_is_member (dag->flownode->global_vars, var->number))
continue;
if (!set_is_member (live_vars, var->number))
set_remove (l->dagnode->identifiers, l->number);
}