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[Bug middle-end/38671] [4.3/4.4/4.5 Regression] selecting one IV instead of three
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Mar 2010 23:34:55 -0000
- Subject: [Bug middle-end/38671] [4.3/4.4/4.5 Regression] selecting one IV instead of three
- References: <bug-38671-12873@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from pinskia at gcc dot gnu dot org 2010-03-01 23:34 -------
For 4.2, we use three IVs; while from 4.3 and above, we use one IV.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.3/4.4/4.5 Regression] |[4.3/4.4/4.5 Regression]
|extra code for setting up |selecting one IV instead of
|loops (IV-opts and 32bits vs|three
|64bits) |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38671