[Bug tree-optimization/1046] gcc less efficient than jdk for recursion with -finline-functions

["hubicka at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #16 from hubicka at gcc dot gnu dot org  2007-01-11 16:50 -------
Subject: Bug 1046

Author: hubicka
Date: Thu Jan 11 16:50:32 2007
New Revision: 120681

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=120681
Log:
        PR tree-optimization/1046
        * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
        when alias info is not ready.
        (pass_tail_recursion): Do not require aliasing.
        * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
        * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
        * tree-ssa-copy.c (pass_copy_prop): Likewise.
        * tree-ssa-forwprop.c (pass_forwprop): Likewise.
        * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
        * passes.c (init_optimization_passes): Execute rename_ssa_copies,
        ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
        before inlining.
        * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
        When aliasing is not build, mark statement as volatile.

        * gcc.dg/tree-ssa/tailrecursion-4.c: Update dump file.
        * gcc.dg/tree-ssa/tailrecursion-1.c: Update dump file.
        * gcc.dg/tree-ssa/tailrecursion-2.c: Update dump file.
        * gcc.dg/tree-ssa/tailrecursion-3.c: Update dump file.
        * gcc.dg/tree-ssa/pr21658.c: Likewise.
        * gcc.dg/tree-ssa/pr15349.c: Likewise.
        * gcc.dg/tree-ssa/pr25501.c: Likewise.
        * gcc.dg/tree-ssa/vrp11.c: Make more complex so it still test
        transformation in question.
        * gcc.dg/tree-ssa/vrp05.c: Likewise.
        * gcc.dg/tree-ssa/pr20701.c: Likewise.
        * gcc.dg/always_inline3.c: Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/passes.c
    trunk/gcc/tree-pass.h
    trunk/gcc/tree-ssa-ccp.c
    trunk/gcc/tree-ssa-copy.c
    trunk/gcc/tree-ssa-copyrename.c
    trunk/gcc/tree-ssa-dce.c
    trunk/gcc/tree-ssa-forwprop.c
    trunk/gcc/tree-ssa-operands.c
    trunk/gcc/tree-ssanames.c
    trunk/gcc/tree-tailcall.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=1046