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[Bug rtl-optimization/47299] [4.6 Regression] Widening multiply optimization generates bad code
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 16 Jan 2011 15:53:44 +0000
- Subject: [Bug rtl-optimization/47299] [4.6 Regression] Widening multiply optimization generates bad code
- Auto-submitted: auto-generated
- References: <bug-47299-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47299
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.01.16 15:53:38
Version|4.5.0 |4.6.0
Target Milestone|--- |4.6.0
Summary|Widening multiply |[4.6 Regression] Widening
|optimization generates bad |multiply optimization
|code |generates bad code
Ever Confirmed|0 |1
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-16 15:53:38 UTC ---
It is a 4.6 regression. 4.5 branch is OK.