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[Bug middle-end/23488] [4.1/4.2 Regression] GCSE load PRE does not work with non sets
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Mar 2006 02:16:04 -0000
- Subject: [Bug middle-end/23488] [4.1/4.2 Regression] GCSE load PRE does not work with non sets
- References: <bug-23488-1008@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #19 from pinskia at gcc dot gnu dot org 2006-03-03 02:16 -------
(In reply to comment #18)
> Right, the copying happens in .bbro (as shown in PR26537).
> gcc-4.0 did the same kind of copying in .bbro, but it did not generate the
> redundant mov.
And that is because load PRE happened.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23488