[Bug rtl-optimization/23837] [4.0 regression] Wrong code with REG_NO_CONFLICT notes (caused by combine)

joern dot rennecke at st dot com gcc-bugzilla@gcc.gnu.org
Mon Dec 19 13:34:00 GMT 2005



------- Comment #38 from joern dot rennecke at st dot com  2005-12-19 13:34 -------
Subject: Re:  [4.0 regression] Wrong code with REG_NO_CONFLICT notes (caused by
combine)

steven at gcc dot gnu dot org wrote:

>------- Comment #37 from steven at gcc dot gnu dot org  2005-12-19 12:36 -------
>That would be a different bug, and the fix would still be to not have a
>no-conflict block to begin with.
>  
>
No, it's the same bug.  combine rendering REG_NO_CONFLICT notes invalid.
And you seem to advocate  removing REG_NO_CLONFLICT notes from gcc 
altogether here.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23837



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