[Bug tree-optimization/38985] New: [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[Bug tree-optimization/38985] New: [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[bonzini at gnu dot org]

This testcase fails:

/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */

int f(int *p)
{
  int a = *p;
  int *q = (int *)0xDEADBEE0;
  *q = 5;
  return *p == a;
}

/* { dg-final { scan-tree-dump-times " = \\\*p" 2 "optimized" } } */
/* { dg-final { scan-tree-dump-not "return 1" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */


Unlike PR38984 it does not require -fno-delete-null-pointer-checks.


-- 
           Summary: [4.2/4.3/4.4 Regression] missing constraints for
                    pointers accessed directly via their address
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bonzini at gnu dot org
OtherBugsDependingO 38984
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[pinskia at gmail dot com]

------- Comment #1 from pinskia at gmail dot com  2009-01-27 11:27 -------
Subject: Re:   New: [4.2/4.3/4.4 Regression] missing constraints for pointers
accessed directly via their address



Sent from my iPhone

On Jan 27, 2009, at 3:15 AM, "bonzini at gnu dot org" <gcc-bugzilla@gcc.gnu.org 
 > wrote:

> This testcase fails:
>
> /* { dg-do compile } */
> /* { dg-options "-O2 -fdump-tree-optimized" } */
>
> int f(int *p)
> {
>  int a = *p;
>  int *q = (int *)0xDEADBEE0;
>  *q = 5;
>  return *p == a;
> }
>
> /* { dg-final { scan-tree-dump-times " = \\\*p" 2 "optimized" } } */
> /* { dg-final { scan-tree-dump-not "return 1" "optimized" } } */
> /* { dg-final { cleanup-tree-dump "optimized" } } */
>
>
> Unlike PR38984 it does not require -fno-delete-null-pointer-checks.

Volatile addresses also don't have vops on them.  As I mentioned in  
the other bug.  So this is also a bug for volatiles.

>
>
>
> -- 
>           Summary: [4.2/4.3/4.4 Regression] missing constraints for
>                    pointers accessed directly via their address
>           Product: gcc
>           Version: 4.4.0
>            Status: UNCONFIRMED
>          Keywords: wrong-code
>          Severity: normal
>          Priority: P3
>         Component: tree-optimization
>        AssignedTo: unassigned at gcc dot gnu dot org
>        ReportedBy: bonzini at gnu dot org
> OtherBugsDependingO 38984
>             nThis:
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985
>


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

Re: [Bug tree-optimization/38985] New: [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[Andrew Thomas Pinski]

Sent from my iPhone

On Jan 27, 2009, at 3:15 AM, "bonzini at gnu dot org" <gcc-bugzilla@gcc.gnu.org 
 > wrote:

> This testcase fails:
>
> /* { dg-do compile } */
> /* { dg-options "-O2 -fdump-tree-optimized" } */
>
> int f(int *p)
> {
>  int a = *p;
>  int *q = (int *)0xDEADBEE0;
>  *q = 5;
>  return *p == a;
> }
>
> /* { dg-final { scan-tree-dump-times " = \\\*p" 2 "optimized" } } */
> /* { dg-final { scan-tree-dump-not "return 1" "optimized" } } */
> /* { dg-final { cleanup-tree-dump "optimized" } } */
>
>
> Unlike PR38984 it does not require -fno-delete-null-pointer-checks.

Volatile addresses also don't have vops on them.  As I mentioned in  
the other bug.  So this is also a bug for volatiles.

>
>
>
> -- 
>           Summary: [4.2/4.3/4.4 Regression] missing constraints for
>                    pointers accessed directly via their address
>           Product: gcc
>           Version: 4.4.0
>            Status: UNCONFIRMED
>          Keywords: wrong-code
>          Severity: normal
>          Priority: P3
>         Component: tree-optimization
>        AssignedTo: unassigned at gcc dot gnu dot org
>        ReportedBy: bonzini at gnu dot org
> OtherBugsDependingO 38984
>             nThis:
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985
>

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-01-27 12:04 -------
Works on the alias-improvements branch.  Confirmed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to fail|4.1.3 4.4.0                 |4.0.4 4.1.3 4.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2009-01-27 12:04:37
               date|                            |
   Target Milestone|---                         |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-01-27 12:04 -------
Mine.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-01-27 12:04:37         |2009-01-27 12:04:54
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-01-27 12:06 -------
In the operand scanner we try to be clever ...

  else if (TREE_CODE (ptr) == INTEGER_CST)
    {
      /* If a constant is used as a pointer, we can't generate a real
         operand for it but we mark the statement volatile to prevent
         optimizations from messing things up.  */
      gimple_set_has_volatile_ops (stmt, true);
      return;

but that of course misses the fact that we miss all necessary conflicts.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-01-27 12:09 -------
The bad thing is that this is really bad.  We would need to add the SMT for
the type here, but we have no way of looking that up.  So the only way to fix
this in a reasonable way is to simply not CCP constant addresses into
dereferences.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[bonzini at gnu dot org]

------- Comment #6 from bonzini at gnu dot org  2009-01-27 12:21 -------
These passes are able to propagate the address to the load: CCP, VRP, DOM.  If
we decide that it's an invalid transformation, fixing them would fix this bug.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[bonzini at gnu dot org]

------- Comment #7 from bonzini at gnu dot org  2009-01-27 12:29 -------
> simply not CCP constant addresses into dereferences.

Apart from the fact that it's not only CCP, it seems mostly sensible.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2009-01-27 12:31 -------
Created an attachment (id=17190)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17190&action=view)
incomplete patch

I tried this quick hack to add proper operands for the dereference, but it
shows
that (of course) we do not bother to create SMTs for dereferences of constants.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2009-01-27 12:33 -------
As this bug exists basically forever (since tree-ssa merge) I am inclined to
only fix it for 4.5 with the alias-improvements branch merge.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[bonzini at gnu dot org]

------- Comment #10 from bonzini at gnu dot org  2009-01-27 12:58 -------
Created an attachment (id=17191)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17191&action=view)
tentative patch

Do you want to pursue something as in the attached patch instead?  You can then
revert it in the alias-improvements branch if you wish.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #11 from rguenth at gcc dot gnu dot org  2009-01-27 13:05 -------
The patch is not enough.  Consider replacements in loads and in loads of
call arguments to const/pure calls.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[bonzini at gnu dot org]

------- Comment #12 from bonzini at gnu dot org  2009-01-27 13:18 -------
Ok, I'm not working on it anyway.  I'll just leave the patch in case someone
else would pick it up.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[bonzini at gnu dot org]

------- Comment #13 from bonzini at gnu dot org  2009-01-28 11:50 -------
Aren't loads protected by the gimple_set_has_volatile_ops anyway?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenther at suse dot de]

------- Comment #14 from rguenther at suse dot de  2009-01-28 12:08 -------
Subject: Re:  [4.2/4.3/4.4 Regression] missing
 constraints for pointers accessed directly via their address

On Wed, 28 Jan 2009, bonzini at gnu dot org wrote:

> ------- Comment #13 from bonzini at gnu dot org  2009-01-28 11:50 -------
> Aren't loads protected by the gimple_set_has_volatile_ops anyway?

No, only during early optimizations (because we don't have virtual
operands there).

Richard.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.2/4.3/4.4 Regression] missing constraints for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.3/4.4/4.5 Regression] missing VOPs for pointers accessed directly via their address

[jsm28 at gcc dot gnu dot org]

------- Comment #15 from jsm28 at gcc dot gnu dot org  2009-03-31 21:07 -------
Closing 4.2 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.2/4.3/4.4/4.5 Regression]|[4.3/4.4/4.5 Regression]
                   |missing VOPs for pointers   |missing VOPs for pointers
                   |accessed directly via their |accessed directly via their
                   |address                     |address
   Target Milestone|4.2.5                       |4.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.3/4.4/4.5 Regression] missing VOPs for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #16 from rguenth at gcc dot gnu dot org  2009-04-03 10:26 -------
Subject: Bug 38985

Author: rguenth
Date: Fri Apr  3 10:24:28 2009
New Revision: 145494

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145494
Log:
2009-04-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/13146
        PR tree-optimization/23940
        PR tree-optimization/33237
        PR middle-end/33974
        PR middle-end/34093
        PR tree-optimization/36201
        PR tree-optimization/36230
        PR tree-optimization/38049
        PR tree-optimization/38207
        PR tree-optimization/38230
        PR tree-optimization/38301
        PR tree-optimization/38585
        PR middle-end/38895
        PR tree-optimization/38985
        PR tree-optimization/39299
        * tree-ssa-structalias.h: Remove.
        * tree-ssa-operands.h (NULL_USE_OPERAND_P): Make of type use_operand_p.
        (NULL_DEF_OPERAND_P): Make of type def_operand_p.
        (struct vuse_element_d): Remove.
        (struct vuse_vec_d): Likewise.
        (VUSE_VECT_NUM_ELEM, VUSE_VECT_ELEMENT_NC, VUSE_ELEMENT_PTR_NC,
        VUSE_ELEMENT_VAR_NC, VUSE_VECT_ELEMENT, VUSE_ELEMENT_PTR,
        SET_VUSE_VECT_ELEMENT, SET_VUSE_ELEMENT_VAR, SET_VUSE_ELEMENT_PTR,
        VUSE_ELEMENT_VAR): Likewise.
        (struct voptype_d): Likewise.
        (NUM_VOP_FREE_BUCKETS): Likewise.
        (struct ssa_operands): Remove vop_free_buckets and mpt_table fields.
        (struct stmt_operands_d): Remove.
        (VUSE_OP_PTR, VUSE_OP, SET_VUSE_OP, VUSE_NUM, VUSE_VECT,
        VDEF_RESULT_PTR, VDEF_RESULT, VDEF_OP_PTR, VDEF_OP, SET_VDEF_OP,
        VDEF_NUM, VDEF_VECT): Likewise.
        (copy_virtual_operands): Remove.
        (operand_build_cmp): Likewise.
        (create_ssa_artificial_load_stmt): Likewise.
        (enum ssa_op_iter_type): Remove ssa_op_iter_vdef.
        (struct ssa_operand_iterator_d): Remove vuses, vdefs, mayusesm
        vuse_index and mayuse_index members.  Pack and move done and iter_type
        members to the front.
        (SSA_OP_VMAYUSE): Remove.
        (SSA_OP_VIRTUAL_USES): Adjust.
        (FOR_EACH_SSA_VDEF_OPERAND): Remove.
        (unlink_stmt_vdef): Declare.
        (add_to_addressable_set): Remove.
        * tree-vrp.c (stmt_interesting_for_vrp): Adjust.
        (vrp_visit_stmt): Likewise.
        * doc/tree-ssa.texi (Alias analysis): Update.
        * doc/invoke.texi (max-aliased-vops): Remove docs.
        (avg-aliased-vops): Likewise.
        * tree-into-ssa.c (syms_to_rename): Remove.
        (need_to_update_vops_p): Likewise.
        (need_to_initialize_update_ssa_p): Rename to ...
        (update_ssa_initialized_fn): ... this.  Track function we are
        initialized for.
        (symbol_marked_for_renaming): Simplify.
        (add_new_name_mapping): Do not set need_to_update_vops_p.
        (dump_currdefs): Use SYMS_TO_RENAME.
        (rewrite_update_stmt): Always walk all uses/defs.
        (dump_update_ssa): Adjust.
        (init_update_ssa): Take function argument.  Track what we are
        initialized for.
        (delete_update_ssa): Reset SYMS_TO_RENAME and
update_ssa_initialized_fn.
        (create_new_def_for): Initialize for cfun, assert we are initialized
        for cfun.
        (mark_sym_for_renaming): Simplify.
        (mark_set_for_renaming): Do not initialize update-ssa.
        (need_ssa_update_p): Simplify.  Take function argument.
        (name_mappings_registered_p): Assert we ask for the correct function.
        (name_registered_for_update_p): Likewise.
        (ssa_names_to_replace): Likewise.
        (release_ssa_name_after_update_ssa): Likewise.
        (update_ssa): Likewise.  Use SYMS_TO_RENAME.
        (dump_decl_set): Do not print a newline.
        (debug_decl_set): Do it here.
        (dump_update_ssa): And here.
        * tree-ssa-loop-im.c (move_computations): Adjust.
        (movement_possibility): Likewise.
        (determine_max_movement): Likewise.
        (gather_mem_refs_stmt): Likewise.
        * tree-dump.c (dequeue_and_dump): Do not handle SYMBOL_MEMORY_TAG
        or NAME_MEMORY_TAG.
        * tree-complex.c (update_all_vops): Remove.
        (expand_complex_move): Adjust.
        * tree-ssa-loop-niter.c (chain_of_csts_start): Use NULL_TREE.
        Simplify test for memory referencing statement.  Exclude
        non-invariant ADDR_EXPRs.
        * tree-pretty-print.c (dump_generic_node): Do not handle memory tags.
        * tree-loop-distribution.c (generate_memset_zero): Adjust.
        (rdg_flag_uses): Likewise.
        * tree-tailcall.c (suitable_for_tail_opt_p): Remove memory-tag
        related code.
        (tree_optimize_tail_calls_1): Also split the
        edge from the entry block if we have degenerate PHI nodes in
        the first basic block.
        * tree.c (init_ttree): Remove memory-tag related code.
        (tree_code_size): Likewise.
        (tree_node_structure): Likewise.
        (build7_stat): Re-write to be build6_stat.
        * tree.h (MTAG_P, TREE_MEMORY_TAG_CHECK, TMR_TAG): Remove.
        (SSA_VAR_P): Adjust.
        (struct tree_memory_tag): Remove.
        (struct tree_memory_partition_tag): Likewise.
        (union tree_node): Adjust.
        (build7): Re-write to be build6.
        * tree-pass.h (pass_reset_cc_flags): Remove.
        (TODO_update_address_taken): New flag.
        (pass_simple_dse): Remove.
        * ipa-cp.c (ipcp_update_callgraph): Update SSA form.
        * params.h (MAX_ALIASED_VOPS): Remove.
        (AVG_ALIASED_VOPS): Likewise.
        * omp-low.c (expand_omp_taskreg): Update SSA form.
        * tree-ssa-dse.c (dse_optimize_stmt): Properly query if the rhs
        aliases the lhs in a copy stmt.
        * tree-ssa-dse.c (struct address_walk_data): Remove.
        (memory_ssa_name_same): Likewise.
        (memory_address_same): Likewise.
        (get_kill_of_stmt_lhs): Likewise.
        (dse_possible_dead_store_p): Simplify, use the oracle.  Handle
        unused stores.  Look through PHI nodes into post-dominated regions.
        (dse_optimize_stmt): Simplify.  Properly remove stores.
        (tree_ssa_dse): Compute dominators.
        (execute_simple_dse): Remove.
        (pass_simple_dse): Likewise.
        * ipa-reference.c (scan_stmt_for_static_refs): Open-code
        gimple_loaded_syms and gimple_stored_syms computation.
        * toplev.c (dump_memory_report): Dump alias and pta stats.
        * tree-ssa-sccvn.c (vn_reference_compute_hash): Simplify.
        (vn_reference_eq): Likewise.
        (vuses_to_vec, copy_vuses_from_stmt, vdefs_to_vec,
        copy_vdefs_from_stmt, shared_lookup_vops, shared_vuses_from_stmt,
        valueize_vuses): Remove.
        (get_def_ref_stmt_vuses): Simplify.  Rename to ...
        (get_def_ref_stmt_vuse): ... this.
        (vn_reference_lookup_2): New function.
        (vn_reference_lookup_pieces): Use walk_non_aliased_vuses for
        walking equivalent vuses.  Simplify.
        (vn_reference_lookup): Likewise.
        (vn_reference_insert): Likewise.
        (vn_reference_insert_pieces): Likewise.
        (visit_reference_op_call): Simplify.
        (visit_reference_op_load): Likewise.
        (visit_reference_op_store): Likewise.
        (init_scc_vn): Remove shared_lookup_vuses initialization.
        (free_scc_vn): Remove shared_lookup_vuses freeing.
        (sort_vuses, sort_vuses_heap): Remove.
        (get_ref_from_reference_ops): Export.
        * tree-ssa-sccvn.h (struct vn_reference_s): Replace vuses
        vector with single vuse pointer.
        (vn_reference_lookup_pieces, vn_reference_lookup,
        vn_reference_insert, vn_reference_insert_pieces): Adjust prototypes.
        (shared_vuses_from_stmt): Remove.
        (get_ref_from_reference_ops): Declare.
        * tree-ssa-loop-manip.c (slpeel_can_duplicate_loop_p): Adjust.
        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Remove
        memory-tag related code.
        * tree-ssa-ccp.c (get_symbol_constant_value): Remove memory-tag code.
        (likely_value): Add comment, skip static-chain of call statements.
        (surely_varying_stmt_p): Adjust.
        (gimplify_and_update_call_from_tree): Likewise.
        (execute_fold_all_builtins): Do not rebuild alias info.
        (gimplify_and_update_call_from_tree): Properly update VOPs.
        * tree-ssa-loop-ivopts.c (get_ref_tag): Remove.
        (copy_ref_info): Remove memory-tag related code.
        * tree-call-cdce.c (tree_call_cdce): Rename the VOP.
        * ipa-pure-const.c (check_decl): Remove memory-tag related code.
        (check_stmt): Open-code gimple_loaded_syms and gimple_stored_syms
        computation.
        * tree-ssa-dom.c (gimple_p): Remove typedef.
        (eliminate_redundant_computations): Adjust.
        (record_equivalences_from_stmt): Likewise.
        (avail_expr_hash): Likewise.
        (avail_expr_eq): Likewise.
        * tree-ssa-propagate.c (update_call_from_tree): Properly
        update VOPs.
        (stmt_makes_single_load): Likewise.
        (stmt_makes_single_store): Likewise.
        * tree-ssa-alias.c: Rewrite completely.
        (debug_memory_partitions, dump_mem_ref_stats, debug_mem_ref_stats,
        debug_mem_sym_stats, dump_mem_sym_stats_for_var,
        debug_all_mem_sym_stats, debug_mp_info, update_mem_sym_stats_from_stmt,
        delete_mem_ref_stats, create_tag_raw, dump_points_to_info,
        dump_may_aliases_for, debug_may_aliases_for, new_type_alias):
        Remove public functions.
        (pass_reset_cc_flags): Remove.
        (pass_build_alias): Move ...
        * tree-ssa-structalias.c (pass_build_alias): ... here.
        * tree-ssa-alias.c (may_be_aliased): Move ...
        * tree-flow-inline.h (may_be_aliased): ... here.
        tree-ssa-alias.c (struct count_ptr_d, count_ptr_derefs,
        count_uses_and_derefs): Move ...
        * gimple.c: ... here.
        * gimple.h (count_uses_and_derefs): Declare.
        * tree-ssa-alias.c (dump_alias_stats, ptr_deref_may_alias_global_p,
        ptr_deref_may_alias_decl_p, ptr_derefs_may_alias_p,
        same_type_for_tbaa, nonaliasing_component_refs_p,
decl_refs_may_alias_p,
        indirect_ref_may_alias_decl_p, indirect_refs_may_alias_p,
        ref_maybe_used_by_call_p, ref_maybe_used_by_stmt_p,
        call_may_clobber_ref_p, stmt_may_clobber_ref_p, maybe_skip_until,
        get_continuation_for_phi, walk_non_aliased_vuses, walk_aliased_vdefs):
        New functions.
        * tree-dfa.c (refs_may_alias_p): Move ...
        * tree-ssa-alias.c (refs_may_alias_p): ... here.  Extend.
        * tree-ssa-alias.h: New file.
        * tree-ssa-sink.c (is_hidden_global_store): Adjust.
        (statement_sink_location): Likewise.
        * opts.c (decode_options): Do not adjust max-aliased-vops or
        avg-aliased-vops values.
        * timevar.def (TV_TREE_MAY_ALIAS): Remove.
        (TV_CALL_CLOBBER): Likewise.
        (TV_FLOW_SENSITIVE): Likewise.
        (TV_FLOW_INSENSITIVE): Likewise.
        (TV_MEMORY_PARTITIONING): Likewise.
        (TV_ALIAS_STMT_WALK): New timevar.
        * tree-ssa-loop-ivcanon.c (empty_loop_p): Adjust.
        * tree-ssa-address.c (create_mem_ref_raw): Use build6.
        (get_address_description): Remove memory-tag related code.
        * tree-ssa-ifcombine.c (bb_no_side_effects_p): Adjust.
        * treestruct.def (TS_MEMORY_TAG, TS_MEMORY_PARTITION_TAG): Remove.
        * tree-eh.c (cleanup_empty_eh): Do not leave stale SSA_NAMEs
        and immediate uses in statements.  Document.
        * gimple-pretty-print.c (dump_gimple_mem_ops): Adjust.
        (dump_symbols): Remove.
        (dump_gimple_mem_ops): Do not dump loaded or stored syms.
        * alias.c (get_deref_alias_set): New function split out from ...
        (get_alias_set): ... here.
        * alias.h (get_deref_alias_set): Declare.
        * tree-vect-data-refs.c (vect_create_data_ref_ptr): Remove unused
        type parameter.  Remove restrict pointer handling.  Create a
        ref-all pointer in case type-based alias sets do not conflict.
        (vect_analyze_data_refs): Remove SMT related code.
        * tree-vect-stmts.c (vectorizable_store): Re-instantiate TBAA assert.
        (vectorizable_load): Likewise.
        * tree-data-ref.h (struct dr_alias): Remove symbol_tag field.
        (DR_SYMBOL_TAG, DR_VOPS): Remove.
        * tree-data-ref.c (dr_may_alias_p): Use the alias-oracle.
        Ignore vops and SMTs.
        (dr_analyze_alias): Likewise..
        (free_data_ref): Likewise.
        (create_data_ref): Likewise.
        (analyze_all_data_dependences): Likewise.
        (get_references_in_stmt): Adjust.
        * tree-flow-inline.h (gimple_aliases_computed_p,
        gimple_addressable_vars, gimple_call_clobbered_vars,
        gimple_call_used_vars, gimple_global_var, may_aliases,
memory_partition,
        factoring_name_p, mark_call_clobbered, clear_call_clobbered,
        compare_ssa_operands_equal, symbol_mem_tag, set_symbol_mem_tag,
        gimple_mem_ref_stats): Remove.
        (gimple_vop): New function.
        (op_iter_next_use): Remove vuses and mayuses cases.
        (op_iter_next_def): Remove vdefs case.
        (op_iter_next_tree): Remove vuses, mayuses and vdefs cases.
        (clear_and_done_ssa_iter): Do not set removed fields.
        (op_iter_init): Likewise.  Skip vuse and/or vdef if requested.
        Assert we are not iterating over vuses or vdefs if not also
        iterating over uses or defs.
        (op_iter_init_use): Likewise.
        (op_iter_init_def): Likewise.
        (op_iter_next_vdef): Remove.
        (op_iter_next_mustdef): Likewise.
        (op_iter_init_vdef): Likewise.
        (compare_ssa_operands_equal): Likewise.
        (link_use_stmts_after): Handle vuse operand.
        (is_call_used): Use is_call_clobbered.
        (is_call_clobbered): Global variables are always call clobbered,
        query the call-clobbers bitmap.
        (mark_call_clobbered): Ignore global variables.
        (clear_call_clobbered): Likewise.
        * tree-ssa-coalesce.c (create_outofssa_var_map): Adjust
        virtual operands sanity check.
        * tree.def (NAME_MEMORY_TAG, SYMBOL_MEMORY_TAG, MEMORY_PARTITION_TAG):
        Remove.
        (TARGET_MEM_REF): Remove TMR_TAG operand.
        * tree-dfa.c (add_referenced_var): Initialize call-clobber state.
        Remove call-clobber related code.
        (remove_referenced_var): Likewise.  Do not clear mpt or symbol_mem_tag.
        (dump_variable): Do not dump SMTs, memory stats, may-aliases or
        partitions or escape reason.
        (get_single_def_stmt, get_single_def_stmt_from_phi,
        get_single_def_stmt_with_phi): Remove.
        (dump_referenced_vars): Tidy.
        (get_ref_base_and_extent): Allow bare decls.
        (collect_dfa_stats): Adjust.
        * graphite.c (rename_variables_in_stmt): Adjust.
        (graphite_copy_stmts_from_block): Likewise.
        (translate_clast): Likewise.
        * tree-ssa-pre.c (struct bb_bitmap_sets): Add expr_dies bitmap.
        (EXPR_DIES): New.
        (translate_vuse_through_block): Use the oracle.
        (phi_translate_1): Adjust.
        (value_dies_in_block_x): Use the oracle.  Cache the outcome
        in EXPR_DIES.
        (valid_in_sets): Check if the VUSE for
        a REFERENCE is available.
        (eliminate): Do not remove stmts during elimination,
        instead queue and remove them afterwards.
        (do_pre): Do not rebuild alias info.
        (pass_pre): Run TODO_rebuild_alias before PRE.
        * tree-ssa-live.c (remove_unused_locals): Remove memory-tag code.
        * tree-sra.c (sra_walk_function): Use gimple_references_memory_p.
        (mark_all_v_defs_stmt): Remove.
        (mark_all_v_defs_seq): Adjust.
        (sra_replace): Likewise.
        (scalarize_use): Likewise.
        (scalarize_copy): Likewise.
        (scalarize_init): Likewise.
        (scalarize_ldst): Likewise.
        (todoflags): Remove.
        (tree_sra): Do not rebuild alias info.
        (tree_sra_early): Adjust.
        (pass_sra): Run TODO_update_address_taken before SRA.
        * tree-predcom.c (set_alias_info): Remove.
        (prepare_initializers_chain): Do not call it.
        (mark_virtual_ops_for_renaming): Adjust.
        (mark_virtual_ops_for_renaming_list): Remove.
        (initialize_root_vars): Adjust.
        (initialize_root_vars_lm): Likewise.
        (prepare_initializers_chain): Likewise.
        * tree-ssa-copy.c (may_propagate_copy): Remove memory-tag related code.
        (may_propagate_copy_into_stmt): Likewise.
        (merge_alias_info): Do nothing for now.
        (propagate_tree_value_into_stmt): Adjust.
        (stmt_may_generate_copy): Likewise.
        * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr): Do
        not mark symbols for renaming.
        (forward_propagate_addr_expr): Match up push/pop_stmt_changes
        with the same statement, make sure to update the new pointed-to one.
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not copy
        call statements, do not mark symbols for renaming.
        (mark_operand_necessary): Dump something.
        (ref_may_be_aliased): New function.
        (mark_aliased_reaching_defs_necessary_1): New helper function.
        (mark_aliased_reaching_defs_necessary): Likewise.
        (mark_all_reaching_defs_necessary_1): Likewise.
        (mark_all_reaching_defs_necessary): Likewise.
        (propagate_necessity): Do not process virtual PHIs.  For
        non-aliased loads mark all reaching definitions as necessary.
        For aliased loads and stores mark the immediate dominating
        aliased clobbers as necessary.
        (visited): New global static.
        (perform_tree_ssa_dce): Free visited bitmap after propagating
        necessity.
        (remove_dead_phis): Perform simple dead virtual PHI removal.
        (remove_dead_stmt): Properly unlink virtual operands when
        removing stores.
        (eliminate_unnecessary_stmts): Schedule PHI removal after
        stmt removal.
        * tree-ssa-ter.c (is_replaceable_p): Adjust.
        (process_replaceable): Likewise.
        (find_replaceable_in_bb): Likewise.
        * tree-ssa.c (verify_ssa_name): Verify all VOPs are
        based on the single gimple vop.
        (verify_flow_insensitive_alias_info): Remove.
        (verify_flow_sensitive_alias_info): Likewise.
        (verify_call_clobbering): Likewise.
        (verify_memory_partitions): Likewise.
        (verify_alias_info): Likewise.
        (verify_ssa): Adjust..
        (execute_update_addresses_taken): Export.  Update SSA
        manually.  Optimize only when optimizing.  Use a local bitmap.
        (pass_update_address_taken): Remove TODO_update_ssa, add
        TODO_dump_func.
        (pass_update_address_taken): Just use TODO_update_address_taken.
        (init_tree_ssa): Do not initialize addressable_vars.
        (verify_ssa): Verify new VUSE / VDEF properties.
        Verify that all stmts definitions have the stmt as SSA_NAME_DEF_STMT.
        Do not call verify_alias_info.
        (delete_tree_ssa): Clear the VUSE, VDEF operands.
        Do not free the loaded and stored syms bitmaps.  Reset the escaped
        and callused solutions.  Do not free addressable_vars.
        Remove memory-tag related code.
        (warn_uninitialized_var): Aliases are always available.
        * tree-ssa-loop-prefetch.c (gather_memory_references): Adjust.
        * lambda-code.c (can_put_in_inner_loop): Adjust.
        (can_put_after_inner_loop): Likewise.
        (perfect_nestify): Likewise.
        * tree-vect-stmts.c (vect_stmt_relevant_p): Adjust.
        (vect_gen_widened_results_half): Remove CALL_EXPR handling.
        (vectorizable_conversion): Do not mark symbols for renaming.
        * tree-inline.c (remap_gimple_stmt): Clear VUSE/VDEF.
        (expand_call_inline): Unlink the calls virtual operands before
        replacing it.
        (tree_function_versioning): Do not call update_ssa if we are not
        updating clones.  Simplify.
        * tree-ssa-phiprop.c (phivn_valid_p): Adjust.
        (propagate_with_phi): Likewise..
        * tree-outof-ssa.c (create_temp): Remove memory tag and call
        clobber code.  Assert we are not aliased or global.
        * tree-flow.h: Include tree-ssa-alias.h
        (enum escape_type): Remove.
        (struct mem_sym_stats_d): Likewise.
        (struct mem_ref_stats_d): Likewise.
        (struct gimple_df): Add vop member.  Remove global_var,
        call_clobbered_vars, call_used_vars, addressable_vars,
        aliases_compted_p and mem_ref_stats members.  Add syms_to_rename,
        escaped and callused members.
        (struct ptr_info_def): Remove all members, add points-to solution
        member pt.
        (struct var_ann_d): Remove in_vuse_list, in_vdef_list,
        call_clobbered, escape_mask, mpt and symbol_mem_tag members.
        * Makefile.in (TREE_FLOW_H): Add tree-ssa-alias.h.
        (tree-ssa-structalias.o): Remove tree-ssa-structalias.h.
        (tree-ssa-alias.o): Likewise.
        (toplev.o): Add tree-ssa-alias.h
        (GTFILES): Remove tree-ssa-structalias.h, add tree-ssa-alias.h.
        * gimple.c (gimple_set_bb): Fix off-by-one error.
        (is_gimple_reg): Do not handle memory tags.
        (gimple_copy): Also copy virtual operands.
        Delay updating the statement.  Do not reset loaded and stored syms.
        (gimple_set_stored_syms): Remove.
        (gimple_set_loaded_syms): Likewise.
        (gimple_call_copy_skip_args): Copy the virtual operands
        and mark the new statement modified.
        * tree-ssa-structalias.c (may_alias_p): Remove.
        (set_uids_in_ptset): Take the alias set to prune with as
        parameter.  Fold in the alias test of may_alias_p.
        (compute_points_to_sets): Compute whether a ptr is dereferenced
        in a local sbitmap.
        (process_constraint): Deal with &ANYTHING on the lhs, reject all
        other ADDRESSOF constraints on the lhs.
        (get_constraint_for_component_ref): Assert that we don't get
        ADDRESSOF constraints from the base of the reference.
        Properly generate UNKNOWN_OFFSET for DEREF if needed.
        (struct variable_info): Remove collapsed_to member.
        (get_varinfo_fc): Remove.
        (new_var_info): Do not set collapsed_to.
        (dump_constraint): Do not follow cycles.
        (dump_constraint_graph): Likewise.
        (build_pred_graph): Likewise.
        (build_succ_graph): Likewise.
        (rewrite_constraints): Likewise.
        (do_simple_structure_copy): Remove.
        (do_rhs_deref_structure_copy): Remove.
        (do_lhs_deref_structure_copy): Remove.
        (collapse_rest_of_var): Remove.
        (do_structure_copy): Re-implement.
        (pta_stats): New global variable.
        (dump_pta_stats): New function.
        (struct constraint_expr): Make offset signed.
        (UNKNOWN_OFFSET): Define special value.
        (dump_constraint): Dump UNKNOWN_OFFSET as UNKNOWN.
        (solution_set_expand): New helper function split out from ...
        (do_sd_constraint): ... here.
        (solution_set_add): Handle UNKNOWN_OFFSET.  Handle negative offsets.
        (do_ds_constraint): Likewise.
        (do_sd_constraint): Likewise.  Do not special-case ESCAPED = *ESCAPED
        and CALLUSED = *CALLUSED.
        (set_union_with_increment): Make inc argument signed.
        (type_safe): Remove.
        (get_constraint_for_ptr_offset): Handle unknown and negative
        constant offsets.
        (first_vi_for_offset): Handle offsets before start.  Bail
        out early for offsets beyond the variable extent.
        (first_or_preceding_vi_for_offset): New function.
        (init_base_vars): Add ESCAPED = ESCAPED + UNKNOWN_OFFSET constraint.
        Together with ESCAPED = *ESCAPED this properly computes reachability.
        (find_what_var_points_to): New function.
        (find_what_p_points_to): Implement in terms of find_what_var_points_to.
        (pt_solution_reset, pt_solution_empty_p, pt_solution_includes_global,
        pt_solution_includes_1, pt_solution_includes, pt_solutions_intersect_1,
        pt_solutions_intersect): New functions.
        (compute_call_used_vars): Remove.
        (compute_may_aliases): New main entry into PTA computation.
        * gimple.h (gimple_p): New typedef.
        (struct gimple_statement_base): Remove references_memory_p.
        (struct gimple_statement_with_memory_ops_base): Remove
        vdef_ops, vuse_ops, stores and loads members.  Add vdef and vuse
        members.
        (gimple_vuse_ops, gimple_set_vuse_ops, gimple_vdef_ops,
        gimple_set_vdef_ops, gimple_loaded_syms, gimple_stored_syms,
        gimple_set_references_memory): Remove.
        (gimple_vuse_op, gimple_vdef_op, gimple_vuse, gimple_vdef,
        gimple_vuse_ptr, gimple_vdef_ptri, gimple_set_vuse, gimple_set_vdef):
        New functions.
        * tree-cfg.c (move_block_to_fn): Fix off-by-one error.
        (verify_expr): Allow RESULT_DECL.
        (gimple_duplicate_bb): Do not copy virtual operands.
        (gimple_duplicate_sese_region): Adjust.
        (gimple_duplicate_sese_tail): Likewise.
        (mark_virtual_ops_in_region): Remove.
        (move_sese_region_to_fn): Do not call it.
        * passes.c (init_optimization_passes): Remove pass_reset_cc_flags
        and pass_simple_dse.
        (execute_function_todo): Handle TODO_update_address_taken,
        call execute_update_addresses_taken for TODO_rebuild_alias.
        (execute_todo): Adjust.
        (execute_one_pass): Init dump files early.
        * ipa-struct-reorg.c (finalize_var_creation): Do not mark vars
        call-clobbered.
        (create_general_new_stmt): Clear vops.
        * tree-ssa-reassoc.c (get_rank): Adjust.
        * tree-vect-slp.c (vect_create_mask_and_perm): Do not mark
        symbols for renaming.
        * params.def (PARAM_MAX_ALIASED_VOPS): Remove.
        (PARAM_AVG_ALIASED_VOPS): Likewise.
        * tree-ssanames.c (init_ssanames): Allocate SYMS_TO_RENAME.
        (duplicate_ssa_name_ptr_info): No need to copy the shared bitmaps.
        * tree-ssa-operands.c: Simplify for new virtual operand
        representation.
        (operand_build_cmp, copy_virtual_operands,
        create_ssa_artificial_load_stmt, add_to_addressable_set,
        gimple_add_to_addresses_taken): Remove public functions.
        (unlink_stmt_vdef): New function.

        * gcc.dg/pr19633-1.c: Adjust.
        * gcc.dg/torture/pta-callused-1.c: Likewise.
        * gcc.dg/torture/pr39074-2.c: Likewise.
        * gcc.dg/torture/pr39074.c: Likewise.
        * gcc.dg/torture/pta-ptrarith-3.c: New testcase.
        * gcc.dg/torture/pr30375.c: Adjust.
        * gcc.dg/torture/pr33563.c: Likewise.
        * gcc.dg/torture/pr33870.c: Likewise.
        * gcc.dg/torture/pr33560.c: Likewise.
        * gcc.dg/torture/pta-structcopy-1.c: New testcase.
        * gcc.dg/torture/ssa-pta-fn-1.c: Likewise.
        * gcc.dg/tree-ssa/alias-15.c: Remove.
        * gcc.dg/tree-ssa/ssa-dce-4.c: New testcase.
        * gcc.dg/tree-ssa/pr26421.c: Adjust.
        * gcc.dg/tree-ssa/ssa-fre-10.c: XFAIL.
        * gcc.dg/tree-ssa/ssa-dce-5.c: New testcase.
        * gcc.dg/tree-ssa/pr23382.c: Adjust.
        * gcc.dg/tree-ssa/ssa-fre-20.c: New testcase.
        * gcc.dg/tree-ssa/alias-16.c: Adjust.
        * gcc.dg/tree-ssa/ssa-fre-13.c: Likewise.
        * gcc.dg/tree-ssa/ssa-fre-14.c: Likewise.
        * gcc.dg/tree-ssa/alias-18.c: Likewise.
        * gcc.dg/tree-ssa/ssa-fre-15.c: Likewise.
        * gcc.dg/tree-ssa/ssa-lim-3.c: Likewise.
        * gcc.dg/tree-ssa/alias-19.c: Likewise.
        * gcc.dg/tree-ssa/pta-ptrarith-1.c: New testcase.
        * gcc.dg/tree-ssa/pr13146.c: Likewise.
        * gcc.dg/tree-ssa/ssa-pre-23.c: Likewise.
        * gcc.dg/tree-ssa/pta-ptrarith-2.c: Likewise.
        * gcc.dg/tree-ssa/ssa-fre-18.c: Likewise.
        * gcc.dg/tree-ssa/ssa-pre-24.c: New XFAILed testcase.
        * gcc.dg/tree-ssa/ssa-fre-19.c: New testcase.
        * gcc.dg/tree-ssa/alias-20.c: Likewise.
        * gcc.dg/tree-ssa/ssa-dse-12.c: Likewise.
        * gcc.dg/tree-ssa/pr38895.c: Likewise.
        * gcc.dg/uninit-B.c: XFAIL.
        * gcc.dg/vect/no-vfa-vect-43.c: Adjust.
        * gcc.dg/uninit-pr19430.c: XFAIL.
        * g++.dg/tree-ssa/pr13146.C: New testcase.
        * g++.dg/opt/pr36187.C: Adjust.
        * g++.dg/torture/20090329-1.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/20090329-1.C
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/g++.dg/torture/20090329-1.C
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr13146.C
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/g++.dg/tree-ssa/pr13146.C
    trunk/gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c
    trunk/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c
    trunk/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/torture/ssa-pta-fn-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-20.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/alias-20.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr13146.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/pr13146.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr38895.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/pr38895.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-2.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-2.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-4.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-4.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-5.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-5.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-12.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-12.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-18.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-18.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-19.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-19.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-20.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-20.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-23.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-23.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-24.c
      - copied unchanged from r145492,
branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-24.c
    trunk/gcc/tree-ssa-alias.h
      - copied unchanged from r145492,
branches/alias-improvements/gcc/tree-ssa-alias.h
Removed:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-15.c
    trunk/gcc/tree-ssa-structalias.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/alias.c
    trunk/gcc/alias.h
    trunk/gcc/doc/invoke.texi
    trunk/gcc/doc/tree-ssa.texi
    trunk/gcc/gimple-pretty-print.c
    trunk/gcc/gimple.c
    trunk/gcc/gimple.h
    trunk/gcc/graphite.c
    trunk/gcc/ipa-cp.c
    trunk/gcc/ipa-pure-const.c
    trunk/gcc/ipa-reference.c
    trunk/gcc/ipa-struct-reorg.c
    trunk/gcc/lambda-code.c
    trunk/gcc/omp-low.c
    trunk/gcc/opts.c
    trunk/gcc/params.def
    trunk/gcc/params.h
    trunk/gcc/passes.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/opt/pr36187.C
    trunk/gcc/testsuite/gcc.dg/pr19633-1.c
    trunk/gcc/testsuite/gcc.dg/torture/pr30375.c
    trunk/gcc/testsuite/gcc.dg/torture/pr33560.c
    trunk/gcc/testsuite/gcc.dg/torture/pr33563.c
    trunk/gcc/testsuite/gcc.dg/torture/pr33870.c
    trunk/gcc/testsuite/gcc.dg/torture/pr39074-2.c
    trunk/gcc/testsuite/gcc.dg/torture/pr39074.c
    trunk/gcc/testsuite/gcc.dg/torture/pta-callused-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-16.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-18.c
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-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.3/4.4 Regression] missing VOPs for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #17 from rguenth at gcc dot gnu dot org  2009-04-03 10:37 -------
Fixed for 4.5.0.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|rguenth at gcc dot gnu dot  |unassigned at gcc dot gnu
                   |org                         |dot org
             Status|ASSIGNED                    |NEW
            Summary|[4.3/4.4/4.5 Regression]    |[4.3/4.4 Regression] missing
                   |missing VOPs for pointers   |VOPs for pointers accessed
                   |accessed directly via their |directly via their address
                   |address                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.3/4.4 Regression] missing VOPs for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #18 from rguenth at gcc dot gnu dot org  2009-08-04 12:29 -------
GCC 4.3.4 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.4                       |4.3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985

[Bug tree-optimization/38985] [4.3/4.4 Regression] missing VOPs for pointers accessed directly via their address

[rguenth at gcc dot gnu dot org]

------- Comment #19 from rguenth at gcc dot gnu dot org  2010-05-22 18:13 -------
GCC 4.3.5 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.5                       |4.3.6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38985