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Re: c/859: sparc-specific pessimal code for simple loop

To: "David S. Miller" <davem at redhat dot com>
Subject: Re: c/859: sparc-specific pessimal code for simple loop
From: Richard Henderson <rth at redhat dot com>
Date: Tue, 21 Nov 2000 23:21:35 -0800
Cc: jakub at redhat dot com, gcc-gnats at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, bernds at redhat dot com, jbuck at synopsys dot com
References: <20001121213559.26387.qmail@sourceware.cygnus.com> <20001121230119.A19367@redhat.com> <200011220702.XAA06961@pizda.ninka.net>

On Tue, Nov 21, 2000 at 11:02:36PM -0800, David S. Miller wrote:
> I remember there were some issues with var-args, which could make
> "long long" and other DF/DI mode values go into the stack only 4-byte
> aligned.  This case needed to be handled, and I am pretty sure this is
> where all the wacky constraint stuff comes from.

Seems to me that ought to have been handled with store_bit_field
and friends, which are how we deal with unaligned data coming from
the front end.

I'll ponder this a bit more.

r~

References:
- c/859: sparc-specific pessimal code for simple loop
  - From: jbuck
- Re: c/859: sparc-specific pessimal code for simple loop
  - From: Richard Henderson
- Re: c/859: sparc-specific pessimal code for simple loop
  - From: David S. Miller

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