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Extract values from constant defs.

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This commit is contained in:
Bill Currie 2011-04-09 12:42:41 +09:00
parent cc714864a8
commit 57ed603658
1 changed files with 16 additions and 2 deletions
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18
tools/qfcc/source/expr.c
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@ -620,17 +620,31 @@ expr_t *
constant_expr (expr_t *e)
{
expr_t *new;
symbol_t *sym;
ex_value_t value;
if (!is_constant (e))
return e;
if (e->type == ex_nil || e->type == ex_value)
return e;
if (e->type != ex_symbol || e->e.symbol->sy_type != sy_const)
if (e->type != ex_symbol)
return e;
sym = e->e.symbol;
if (sym->sy_type == sy_const) {
value = sym->s.value;
} else if (sym->sy_type == sy_var && sym->s.def->constant) {
//FIXME pointers and fields
memset (&value, 0, sizeof (value));
memcpy (&value.v, &D_INT (sym->s.def),
type_size (sym->s.def->type) * sizeof (pr_type_t));
} else {
return e;
}
new = new_expr ();
new->type = ex_value;
new->line = e->line;
new->file = e->file;
new->e.value = e->e.symbol->s.value;
new->e.value = value;
return new;
}