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Re: [PATCH] - Use of powerpc 64bit instructions in 32bit ABI
- From: Geoff Keating <geoffk at geoffk dot org>
- To: David Edelsohn <dje at watson dot ibm dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: 24 Oct 2003 12:07:11 -0700
- Subject: Re: [PATCH] - Use of powerpc 64bit instructions in 32bit ABI
- References: <rth@redhat.com> <200310241827.h9OIRWg26036@makai.watson.ibm.com>
David Edelsohn <dje@watson.ibm.com> writes:
> >>>>> Richard Henderson writes:
>
> Richard> If you're returning parallels from function_arg, you won't get here.
>
> You are suggesting that function_arg() return PARALLELs for all
> arguments in this 32/64 mode, not just "long long" and "double" arguments
> that need to be split across two registers in 32-bit mode? That's a lot
> of code to emulate the GCC defaults in 32-bit mode.
It should only be necessary to do this for arguments that would
otherwise be passed in GPRs.
--
- Geoffrey Keating <geoffk@geoffk.org>