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[Bug tree-optimization/34683] SSA rewriting in the loop unroller causes quadratic behavior
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Jan 2008 17:05:59 -0000
- Subject: [Bug tree-optimization/34683] SSA rewriting in the loop unroller causes quadratic behavior
- References: <bug-34683-14773@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #43 from rguenth at gcc dot gnu dot org 2008-01-10 17:05 -------
Actually this is not a regression against a released compiler, as both the
4.1 and the 4.2 branches ICE for this testcase:
gfortran-4.2 -S -o /dev/null t.f90 -O -fstrict-aliasing
t.f90: In function 'ampli':
t.f90:83: internal compiler error: in gfc_trans_array_constructor, at
fortran/trans-array.c:1466
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.opensuse.org> for instructions.
so, can we declare this as fixed (the huge number of VOPs we have special
PRs for)?
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.3 Regression] SSA |SSA rewriting in the loop
|rewriting in the loop |unroller causes quadratic
|unroller causes quadratic |behavior
|behavior |
Target Milestone|4.3.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34683