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Re: RFA: fix PR middle-end/23135

From: Bernd Schmidt <bernds_cb1 at t-online dot de>
To: Joern RENNECKE <joern dot rennecke at st dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 03 Aug 2005 00:09:13 +0200
Subject: Re: RFA: fix PR middle-end/23135
References: <42EA550F.80100@st.com>

Joern RENNECKE wrote:

The problem is that the type of reload 0 is RELOAD_FOR_OUTADDR_ADDRESS,
which, in the absence of multiple RELOAD_FOR_OUTPUT_ADDRESS reloads,
does not conflict with an RELOAD_FOR_OUTPUT_ADDRESS reload.
find_reloads_toplev is always called with address_type[i] (or type from
direct recursion) for type, so ADDR_TYPE (type) is a *ADDR_ADDRESS type.
reload 0 should have the type RELOAD_FOR_OUTPUT_ADDRESS instead.  I've
changed that inadvertantly six years ago.

My brain hurts, but...

2005-07-27 J"orn Rennecke <joern.rennecke@st.com>

	* reload.c (find_reloads_subreg_address): Pass down TYPE
	unchanged.  Change all callers except find_reloads_toplev.

This seems ok (along with the testcase, although I wouldn't necessarily include the RTL dump in the comments).

Bernd

Follow-Ups:
- Re: RFA: fix PR middle-end/23135
  - From: Joern RENNECKE

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