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Re: SECONDARY_MEMORY_NEEDED fix
- From: Geoff Keating <geoffk at geoffk dot org>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: 05 Sep 2002 14:44:42 -0700
- Subject: Re: SECONDARY_MEMORY_NEEDED fix
- References: <20020826205457.W24875@chimera.suse.cz>
Jan Hubicka <jh@suse.cz> writes:
> Hi, this has shown up during adding the x86_64 TImode support.
> There was instruction moving data from xmm register subregged to
> DImode into integer register and didn't get proper reload, as reload
> is checking secondary memory just for regs, not for subregs. I am
> not 100% sure whether the subregs are not expected to be elliminated
> somewhere else, but they don't seem to be.
I thought we'd decided that subregs of hard registers were not permitted?
--
- Geoffrey Keating <geoffk@geoffk.org>