* Makefile.in (tree-ssa-alias.o): Depend on tree-ssa-structalias.h
* tree-cfg.c (CHECK_OP): Only test for is_gimple_val.
* tree-dfa.c (dump_subvars_for): New.
(debug_subvars_for): New.
(dump_variable): Show subvariables if VAR has them.
* tree-flow-inline.h (get_subvar_at): New.
(overlap_subvar): Change offset and size to unsigned HOST_WIDE_INT.
* tree-flow.h (struct ptr_info_def): Remove field pt_malloc.
Update all users.
(struct subvar): Change fields offset and size to unsigned
HOST_WIDE_INT.
(dump_subvars_for): Declare.
(debug_subvars_for): Declare.
(get_subvar_at): Declare.
(okay_component_ref_for_subvars): Change 2nd and 3rd argument
to unsigned HOST_WIDE_INT *.
(overlap_subvar): Likewise.
* tree-gimple.c (is_gimple_reg): Always return false for
SFTs and memory tags.
* tree-pass.h (pass_build_pta, pass_del_pta): Remove.
Update all callers.
* tree-ssa-alias.c: Include tree-ssa-structalias.h.
(compute_may_aliases): Call compute_points_to_sets.
(collect_points_to_info_for): Remove.
(compute_points_to_and_addr_escape): Remove.
(delete_alias_info): Call delete_points_to_sets.
(compute_flow_sensitive_aliasing): If the call to
find_what_p_points_to returns false, call set_pt_anything.
(add_may_alias): Set TREE_ADDRESSABLE when adding a new alias.
(set_pt_anything): Clear pi->pt_vars.
(set_pt_malloc): Remove.
(merge_pointed_to_info): Remove.
(add_pointed_to_expr): Remove.
(add_pointed_to_var): Remove.
(collect_points_to_info_r): Remove.
(is_escape_site): Make extern.
(create_sft): New.
(create_overlap_variables_for): Call it.
* tree-ssa-copy.c (merge_alias_info): Never merge
flow-sensitive alias information.
* tree-ssa-operands.c (get_expr_operands): Adjust variables
offset and size to be unsigned HOST_WIDE_INT.
(add_to_addressable_set): Rename from note_addressable.
Set TREE_ADDRESSABLE as the variables are added to the set.
Update all users.
(add_stmt_operand): Do not try to micro-optimize unmodifiable
operands into VUSEs when adding V_MAY_DEFs for members in an
alias set.
* tree-ssa-operands.h (add_to_addressable_set): Declare.
* tree-ssa-structalias.c: Include tree-ssa-structalias.h last.
(struct variable_info): Add bitfield is_heap_var.
(var_anyoffset, anyoffset_tree, anyoffset_id): Declare.
(new_var_info): Initialize is_heap_var.
(get_constraint_for): Add HEAP variables to the symbol table.
Mark them with is_heap_var.
(update_alias_info): New. Taken mostly from the old
compute_points_to_and_addr_escape.
(handle_ptr_arith): New.
(find_func_aliases): Call update_alias_info.
Call handle_ptr_info for tcc_binary expressions.
Call mark_stmt_modified.
(create_variable_info_for): If DECL has subvars, do not create
variables for its subvars. Always add all the fields.
(set_uids_in_ptset): If the solution includes ANYOFFSET and
SFTs, then add all the SFTs of the structure.
If VI->DECL is an aggregate with subvariables, add the SFT at
VI->OFFSET.
(find_what_p_points_to): If VI is an artificial variable,
translate to bitfields in SSA_NAME_PTR_INFO.
If the solution is empty, set pi->pt_vars to NULL
(init_base_vars): Create ANYOFFSET.
(compute_points_to_sets): Rename from create_alias_vars.
Make extern.
(pass_build_pta): Remove.
(delete_points_to_sets): Rename from delete_alias_vars.
(pass_del_pta): Remove.
* tree-ssa-structalias.h (struct alias_info): Move from
tree-ssa-alias.h.
(NUM_REFERENCES, NUM_REFERENCES_CLEAR, NUM_REFERENCES_INC,
NUM_REFERENCES_SET): Likewise.
(compute_points_to_sets, delete_points_to_sets): Declare.
testsuite/ChangeLog
* gcc.dg/tree-ssa/pta-fp.c: Use -fdump-tree-alias1.
From-SVN: r101841
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