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[Bug target/40730] redundant memory load
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jul 2009 09:47:10 -0000
- Subject: [Bug target/40730] redundant memory load
- References: <bug-40730-17659@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from steven at gcc dot gnu dot org 2009-07-15 09:47 -------
That redundant move has to be a separate issue, indeed. I would expect the
register allocator to coalesce those registers.
I hadn't expected this. I thought the result would be just the removal of the
redundant load, but the code that comes out is bigger (14 instructions instead
of 13) and has a completely different structure.
I'll see if I can understand what is going on. Thus, mine.
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |20070
AssignedTo|unassigned at gcc dot gnu |steven at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2009-07-13 10:10:07 |2009-07-15 09:47:09
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40730