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[Bug tree-optimization/31130] [4.2/4.3 Regression] VRP no longer derives range for division after negation
- From: "mmitchel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Apr 2007 18:51:18 -0000
- Subject: [Bug tree-optimization/31130] [4.2/4.3 Regression] VRP no longer derives range for division after negation
- References: <bug-31130-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from mmitchel at gcc dot gnu dot org 2007-04-30 19:51 -------
I think this probably qualifies as a regression, given Stephen's comment #9,
but not an important one. With all of GCC's optimization options, if we start
worrying about regressions for things outside the {-O0, -O1, -O2, -O3, -Os} set
of options that do not occur with those options, I think we're going to have a
very hard time keeping track of what's going on. So, I have marked this P4.
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31130