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Re: Problem with operand handling
On Tue, 2004-09-07 at 10:41, Diego Novillo wrote:
> On Tue, 2004-09-07 at 10:02, Richard Kenner wrote:
>
> > GNAT.EXCEPTION_TRACES.DECORATOR_WRAPPER (traceback, len)
> > {
> > system__traceback_entries__traceback_entry___XDLU_0__18446744073709551615[1 .. T.2] & decorator_traceback;
> >
> What does this declaration mean? Is decorator_traceback
>
> > decorator_traceback_17 = (system__traceback_entries__traceback_entry___XDLU_0__18446744073709551615[1 .. T.2] &) traceback_16;
> >
> According to this, decorator_traceback is a GIMPLE register. It seems
> to be a pointer of some kind? I can't parse the original declaration.
> You'll have to figure out why we first think that decorator_traceback is
> a gimple reg, and then we think otherwise.
>
> This may help. Put this test in add_may_alias:
>
> if (is_gimple_reg (var) || is_gimple_reg (alias))
> abort ();
>
This should probably be added permanently under ENABLE_CHECKING....
Andrew