[Bug target/32457] [4.3 Regression] Complete program optimized away (i686, -ftree-vectorize)

[spop 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


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32457