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[Bug target/52049] SH Target: Inefficient constant address access
- From: "kkojima at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 30 Jan 2012 00:15:16 +0000
- Subject: [Bug target/52049] SH Target: Inefficient constant address access
- Auto-submitted: auto-generated
- References: <bug-52049-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52049
--- Comment #1 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2012-01-30 00:15:16 UTC ---
(In reply to comment #0)
> I'm not sure whether this is actually a problem of the SH back-end or of some
> middle-end passes. It happens for all sub-targets and regardless of the
> endianess.
I've tried these cases on arm/thumb and got similar results
which look not very good. From the rtl dumps, it looks a general
issue with postreload optimization on some targets.