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[Bug target/30829] extra register zero extends
- From: "rask at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Nov 2007 11:08:01 -0000
- Subject: [Bug target/30829] extra register zero extends
- References: <bug-30829-5748@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rask at gcc dot gnu dot org 2007-11-09 11:08 -------
It's not unusual to need more than one instruction pattern for the same machine
instruction. See <URL:http://gcc.gnu.org/ml/gcc-patches/2007-10/msg01318.html>
and the followup for a recent example and what you can do about it.
--
rask at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30829