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Re: [PATCH] Fix one-sized FP arrays returning on MIPS

From: Richard Sandiford <rsandifo at redhat dot com>
To: Eric Botcazou <ebotcazou at act-europe dot fr>
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 23 Jun 2004 17:46:54 +0100
Subject: Re: [PATCH] Fix one-sized FP arrays returning on MIPS
References: <200406110837.08597.ebotcazou@act-europe.fr><87n02uy005.fsf@redhat.com> <87fz8mxzgi.fsf@redhat.com><200406231611.26624.ebotcazou@act-europe.fr>

Eric Botcazou <ebotcazou@act-europe.fr> writes:
>> I'll regression-test it myself soon.
>
> Wait :-)  I just discovered while playing with your patch that it is not 
> sufficient for all types of arrays, namely arrays of Long_Float.  These are 
> given DFmode and... they are returned in $f0 (i.e. no ICE)!

Gah!  Dammit!  TYPE_MODE making ABI decisions again. ;(

I'd completely failed to consider that case, sorry.  I really don't think
it's something we can fix in 3.4, since obviously it'd be ABI-incompatible
with earlier releases in the series.  It looks like we're going to have to
have yet another ABI change in 3.5. ;(

> Sorry for not seeing that earlier.

Likewise.  I really should have noticed this when I made the ABI changes.

Richard

Follow-Ups:
- Re: [PATCH] Fix one-sized FP arrays returning on MIPS
  - From: Eric Botcazou

References:
- [PATCH] Fix one-sized FP arrays returning on MIPS
  - From: Eric Botcazou
- Re: [PATCH] Fix one-sized FP arrays returning on MIPS
  - From: Richard Sandiford
- Re: [PATCH] Fix one-sized FP arrays returning on MIPS
  - From: Richard Sandiford
- Re: [PATCH] Fix one-sized FP arrays returning on MIPS
  - From: Eric Botcazou

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