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From: "amker at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/62173] [5/6 Regression] 64bit Arch can't ivopt while 32bit Arch can
Date: Tue, 02 Jun 2015 03:34:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62173

--- Comment #39 from amker at gcc dot gnu.org ---
Author: amker
Date: Tue Jun  2 03:33:35 2015
New Revision: 224009

URL: https://gcc.gnu.org/viewcvs?rev=224009&root=gcc&view=rev
Log:

        PR tree-optimization/52563
        PR tree-optimization/62173
        * tree-ssa-loop-ivopts.c (struct iv): New field.  Reorder fields.
        (alloc_iv, set_iv): New parameter.
        (determine_biv_step): Delete.
        (find_bivs): Inline original determine_biv_step.  Pass new
        argument to set_iv.
        (idx_find_step): Use no_overflow information for conversion.
        * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Let
        resolve_mixers handle folded_casts.
        (instantiate_scev_name): Change bool parameter to bool pointer.
        (instantiate_scev_poly, instantiate_scev_binary): Ditto.
        (instantiate_array_ref, instantiate_scev_not): Ditto.
        (instantiate_scev_3, instantiate_scev_2): Ditto.
        (instantiate_scev_1, instantiate_scev_r): Ditto.
        (instantiate_scev_convert, ): Change parameter.  Pass argument
        to chrec_convert_aggressive.
        (instantiate_scev): Change argument.
        (resolve_mixers): New parameter and set it.
        (scev_const_prop): New argument.
        * tree-scalar-evolution.h (resolve_mixers): New parameter.
        * tree-chrec.c (convert_affine_scev): Call chrec_convert instead
        of chrec_conert_1.
        (chrec_convert): New parameter.  Move definition below.
        (chrec_convert_aggressive): New parameter and set it.  Call
        convert_affine_scev.
        * tree-chrec.h (chrec_convert): New parameter.
        (chrec_convert_aggressive): Ditto.

        gcc/testsuite/ChangeLog
        PR tree-optimization/52563
        PR tree-optimization/62173
        * gcc.dg/tree-ssa/scev-3.c: Remove xfail.
        * gcc.dg/tree-ssa/scev-4.c: Ditto.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/scev-3.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/scev-4.c
    trunk/gcc/tree-chrec.c
    trunk/gcc/tree-chrec.h
    trunk/gcc/tree-scalar-evolution.c
    trunk/gcc/tree-scalar-evolution.h
    trunk/gcc/tree-ssa-loop-ivopts.c