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[Bug target/50751] SH Target: Displacement addressing does not work for QImode and HImode
- 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, 24 Oct 2011 23:05:08 +0000
- Subject: [Bug target/50751] SH Target: Displacement addressing does not work for QImode and HImode
- Auto-submitted: auto-generated
- References: <bug-50751-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50751
--- Comment #5 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2011-10-24 23:05:08 UTC ---
(In reply to comment #4)
It seems that clobbering R0 in that expander is simply papering
over the real problem. Although the reload issue beyonds me,
.ira dump file about that impossible insn which doesn't satisfy
the "z" constraint would be a starting point.