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Re: [cft] subreg validation round 2

From: Richard Henderson <rth at redhat dot com>
To: Bob Wilson <bwilson at tensilica dot com>
Cc: gcc at gcc dot gnu dot org
Date: Wed, 17 Nov 2004 11:45:53 -0800
Subject: Re: [cft] subreg validation round 2
References: <20041117184009.GA12257@redhat.com> <419BA411.5090801@tensilica.com>

On Wed, Nov 17, 2004 at 11:18:41AM -0800, Bob Wilson wrote:
> Is this my bug?

Yes.  BLKmode REGs are illegal.

> If so, should I change FUNCTION_ARG code to avoid 
> returning a BLKmode reg?  Should I wrap the REG in a PARALLEL?

Presumably you didn't just return the SImode reg in the first place
because you want the three bytes in the high part of the register?
Then, yes, a PARALLEL should do.

r~

Follow-Ups:
- Re: [cft] subreg validation round 2
  - From: Alan Modra
- Re: [cft] subreg validation round 2
  - From: Richard Sandiford

References:
- [cft] subreg validation round 2
  - From: Richard Henderson
- Re: [cft] subreg validation round 2
  - From: Bob Wilson

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