RFA: fix PR rtl-optimization/29858 [Fwd: RFA: fix discover_flags_reg bitrot (Was: Re: RFA: autoincrement patches for gcc 4 - updated patch)]

Joern RENNECKE joern.rennecke@st.com
Wed Nov 15 22:49:00 GMT 2006


:ADDPATCH rtl-optimization:

-------- Original Message --------
Subject: 	RFA: fix discover_flags_reg bitrot (Was: Re: RFA: 
autoincrement patches for gcc 4 - updated patch)
Date: 	Thu, 19 May 2005 14:01:51 +0100
From: 	Joern Rennecke <joern.rennecke@st.com>
To: 	Bernd Schmidt <bernds_cb1@t-online.de>
References: 	<421F4698.1050809@st.com> <427136AB.50004@st.com> 
<20050517025434.GB31389@redhat.com> <428A22F3.4030602@st.com> 
<20050517171501.GA859@redhat.com> <428A41B3.6050104@st.com> 
<428B1267.9030004@st.com> <428B36B2.5050001@st.com> 
<428B4F84.7010302@st.com> <20050518222102.GA7819@redhat.com> 
<428C7D21.3010004@st.com> <428C8741.5080206@t-online.de>



Bernd Schmidt wrote:

> Joern RENNECKE wrote:
>
>>   There are three main suspects for the failure:
>
> [...]
>
>> - Bitrot or a latent bug in the rest of regmove.  Since the 
>> elimination of
>>  SEQUENCE as the result of expanders, most of regmove has been disabled
>>  because of a failure to update discover_flags_reg.
>
>
> Please submit a separate patch to fix just that.
>
>
> Bernd




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