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[Bug target/32457] [4.3 Regression] Complete program optimized away (i686, -ftree-vectorize)
- From: "spop at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Jul 2007 07:04:50 -0000
- Subject: [Bug target/32457] [4.3 Regression] Complete program optimized away (i686, -ftree-vectorize)
- References: <bug-32457-13404@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #19 from spop at gcc dot gnu dot org 2007-07-04 07:04 -------
Subject: Bug 32457
Author: spop
Date: Wed Jul 4 07:04:31 2007
New Revision: 126305
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126305
Log:
PR middle-end/32457
* tree-data-ref.c (analyze_siv_subscript_cst_affine,
compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
init_omega_for_ddr_1): Use non conservative number of iterations
estimations.
(analyze_subscript_affine_affine): Use HOST_WIDE_INT instead of int.
(analyze_siv_subscript): Remove FIXME and reinitialization of
last_conflicts to chrec_dont_know.
* testsuite/gfortran.dg/vect/pr32457.f90: New.
Added:
trunk/gcc/testsuite/gfortran.dg/vect/pr32457.f90
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-data-ref.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32457