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2004-08-25 Andrew MacLeod <amacleod@redhat.com>
* tree-ssa-operands.h (struct ssa_operand_iterator_d): New. SSA operand
iterator controlling structure.
(SSA_OP_USE, SSA_OP_DEF, SSA_OP_VUSE, SSA_OP_VMAYUSE, SSA_OP_VMAYDEF,
SSA_OP_VMUSTDEF, SSA_OP_VIRTUAL_USES, SSA_OP_VIRTUAL_DEFS,
SSA_OP_ALL_USES, SSA_OP_ALL_DEFS, SSA_OP_ALL_OPERANDS): New. Operand
iterator flags.
(FOR_EACH_SSA_TREE_OPERAND): New. Iterate over operands as trees.
(FOR_EACH_SSA_USE_OPERAND): New. Iterate over operands as uses.
(FOR_EACH_SSA_DEF_OPERAND): New. Iterate over operands as defs.
(FOR_EACH_SSA_MAYDEF_OPERAND): New. Iterate over V_MAY_DEFs.
* tree-ssa-operands.c (NULL_DEF_OPERAND_P, NULL_USE_OPERAND_P): New.
Empty operand pointers.
* tree-flow-inline.h (op_iter_done): New. Return true if finished.
(op_iter_next_use): New. Return next use_operand_p.
(op_iter_next_def): New. Return next def_operand_p.
(op_iter_next_tree): New. Return next operands as a tree.
(op_iter_init): New. Initialize an iterator structure.
(op_iter_init_use): New. Initialize structure and get the first use.
(op_iter_init_def): New. Initialize structure and get the first def.
(op_iter_init_tree): New. Initialize structure and get the first tree.
(op_iter_next_maydef): New. Return next V_MAY_DEF operands.
(op_iter_init_maydef): New. Initialize structure and get the first
V_MAY_DEF operands.
* tree-cfg.c (tree_duplicate_bb): Use new operand iterator.
* tree-dfa.c (compute_immediate_uses_for_stmt,
redirect_immediate_uses): Use new operand iterator.
(v_may_defs_disappeared_p, v_must_defs_disappeared_p): Delete.
(mark_new_vars_to_rename): Use new operand iterator. Count virtual
operands instead of using *_disappeared_p routines.
* tree-into-ssa.c (mark_def_sites, ssa_mark_def_sites, rewrite_stmt,
ssa_rewrite_stmt): Use new operand iterator.
* tree-outof-ssa.c (check_replaceable, find_replaceable_in_bb,
rewrite_trees): Use new operand iterator.
* tree-pretty-print.c (dump_vops): Use new operand iterator.
* tree-sra.c (mark_all_v_defs): Use new operand iterator.
* tree-ssa-alias.c (compute_points_to_and_addr_escape,
dump_points_to_info): Use new operand iterator.
* tree-ssa-ccp.c (cp_lattice_meet, visit_stmt, initialize,
replace_uses_in, replace_vuse_in, likely_value, set_rhs): Use new
operand iterator.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary,
propagate_necessity): Use new operand iterator.
* tree-ssa-dom.c (cprop_into_stmt, optimize_stmt): Use operand iterator.
(register_definitions_for_stmt): Use new operand iterator. Take stmt as
a parameter instead of a stmt_ann_t.
* tree-ssa-live.c (create_ssa_var_map, calculate_live_on_entry,
build_tree_conflict_graph): Use new operand iterator.
* tree-ssa-loop-im.c (determine_max_movement, single_reachable_address,
rewrite_mem_refs): Use new operand iterator.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt,
check_loop_closed_ssa_use): Use new operand iterator.
* tree-ssa.c (verify_ssa, replace_immediate_uses): Use operand iterator.
* tree-ssanames.c (release_defs): Use new operand iterator.
* tree-vectorizer.c (vect_create_data_ref): Use new operand iterator.
From-SVN: r86583
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* tree-dfa.c (add_referenced_var): Only global variables are
call-clobbered.
* tree-flow.h (struct ptr_info_def): Add field pt_global_mem.
* tree-ssa-alias.c (compute_points_to_and_addr_escape): Mark
all pointers dereferenced if the statement dereferences them.
(create_name_tags): Do not create memory tags for pointers
that have PT_ANYTHING set.
Also check if PT_VARS is not empty before creating a name tag.
(compute_flow_sensitive_aliasing): Don't mark call-clobbered
variables that share the same alias set with a pointer that
may point anywhere.
(add_may_alias): Add FIXME comment to remove clobbering
aliased variables and tags.
(replace_may_alias): Likewise.
(set_pt_anything): Do not clear PT_VARS nor IS_DEREFERENCED.
(merge_pointed_to_info): If the original variable has not
points-to information, call set_pt_anything.
(add_pointed_to_var): Do not prevent adding a pointed-to
variable if the pointers is PT_ANYTHING.
If the variable is a global, set PT_GLOBAL_MEM.
(collect_points_to_info_r): Don't assume that PLUS_EXPRs of
pointer type only come in PTR+OFFSET flavours.
Always call merge_pointed_to_info on PHI arguments that are
SSA_NAMEs.
(get_nmt_for): Mark call-clobbered tags whose pointer points
to global memory.
* tree-ssa-operands.c (opf_kill_def, opf_no_vops): Switch
values.
(get_indirect_ref_operands): Always clear OPF_KILL_DEF from
FLAGS.
(add_stmt_operand): Abort if the caller tried to add a killing
definition for a memory tag.
* tree-ssa.c (verify_flow_sensitive_alias_info): Remove
unnecessary checks.
From-SVN: r86198
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PR tree-optimization/16867
* tree.c (is_global_var): New function.
(needs_to_live_in_memory): Check for TREE_ADDRESSABLE.
Call is_global_var.
* tree.h (DECL_NEEDS_TO_LIVE_IN_MEMORY_INTERNAL): Remove.
Update all users.
(is_global_var): Declare.
* tree-dfa.c (dump_variable): Display global and addressable
attributes.
(add_referenced_var): Clarify documentation when marking
variables call-clobbered.
* tree-flow-inline.h (is_call_clobbered): Call is_global_var
instead of needs_to_live_in_memory.
(mark_call_clobbered): If the variable is a tag, mark it
DECL_EXTERNAL.
* tree-gimple.c (is_gimple_reg): Don't check for
TREE_ADDRESSABLE.
(is_gimple_non_addressable): Likewise.
* tree-ssa-alias.c (get_nmt_for): Always check whether the tag
needs to be marked call-clobbered.
(setup_pointers_and_addressables): Call is_global_var instead
of needs_to_live_in_memory.
* tree-ssa-dce.c (need_to_preserve_store): Remove.
Update all users with is_global_var.
(mark_stmt_if_obviously_necessary): Fix processing of aliased
stores. Don't check the virtual definitions. Rather, check
whether the store is going into global memory.
(find_obviously_necessary_stmts): Get the symbol from the PHI
result.
* tree-ssa-operands.c (get_call_expr_operands): Do not add
clobbering may-defs if the call does not have side effects.
libjava/ChangeLog
PR tree-optimization/16867
* testsuite/libjava.lang/PR16867.java: New test.
From-SVN: r85874
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through a function call...
* tree-ssa-alias.c (compute_points_to_and_addr_escape): If a
pointer escapes through a function call, assume that the
callee will dereference it.
(add_pointed_to_var): Assume that VALUE is always an
ADDR_EXPR.
(collect_points_to_info_r): Only call add_pointed_to_var if
the value is an ADDR_EXPR.
From-SVN: r85353
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inner type of ARRAY_TYPEs.
* tree-ssa-alias.c (create_alias_map_for): Do not get the
alias set of the inner type of ARRAY_TYPEs.
From-SVN: r85338
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has been created.
* tree-ssa-alias.c (maybe_create_global_var): Don't just
return if .GLOBAL_VAR has been created.
From-SVN: r85268
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right after the program is renamed into SSA.
* tree-optimize.c (init_tree_optimization_passes): Schedule
pass_may_alias right after the program is renamed into SSA.
* tree-pass.h (PROP_alias): Define.
* tree-outof-ssa.c (pass_del_ssa): Require PROP_alias.
* tree-sra.c (pass_sra): Likewise.
* tree-ssa-ccp.c (pass_ccp): Likewise.
* tree-ssa-copyrename.c (pass_rename_ssa_ccp): Likewise.
* tree-ssa-dce.c (pass_dce): Likewise.
* tree-ssa-dom.c (pass_dominator): Likewise.
* tree-ssa-dse.c (pass_dse): Likewise.
* tree-ssa-forwprop.c (pass_forwprop): Likewise.
* tree-ssa-loop-ch.c (pass_ch): Likewise.
* tree-ssa-phiopt.c (pass_phiopt): Likewise.
* tree-ssa-pre.c (pass_pre): Likewise.
* tree-tailcall.c (pass_tail_recursion): Likewise.
* tree-ssa.c (pass_redundant_phi): Likewise.
* tree-ssa-alias.c (aliases_computed_p): Remove.
Update all users.
(init_alias_info): Do not mark all type tags for renaming
unconditionally.
Clear may_aliases from every symbol.
(setup_pointers_and_addressables): If a pointer has not been
dereferenced and it had a type tag, clear it and mark the old
tag for renaming.
testsuite/ChangeLog
* gcc.dg/tree-ssa/20030714-2.c: Adjust number of expected
conditionals.
* gcc.dg/tree-ssa/20031022-1.c: Adjust number of expected
loads.
* gcc.dg/tree-ssa/ssa-dom-cse-1.c: Expect optimization in
DOM1.
From-SVN: r85255
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verify_flow_insensitive_alias_info)
PR tree-optimization/16705
* tree-ssa-alias.c (create_global_var): Set DECL_EXTERNAL on
.GLOBAL_VAR.
From-SVN: r85254
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nor PT_MALLOC set.
* tree-ssa-alias.c (create_name_tags): Ignore pointers that
don't have PT_VARS nor PT_MALLOC set.
Clear name tag from pointers that have not been dereferenced.
(set_pt_anything, set_pt_malloc): Forward declare.
* tree-ssa-copy.c (may_propagate_copy): Compare alias sets,
not type compatibility when determining if a pointer can be
copy propagated.
testsuite/ChangeLog
* gcc.c-torture/compile/20040727-1.c: New test.
From-SVN: r85220
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PR tree-optimization/16688
PR tree-optimization/16689
* tree-ssa-alias.c (setup_pointers_and_addressables): Remove
unnecessary initialization of 'tag'.
(get_tmt_for): Check that the new type tag has the same alias
set as the pointed-to type.
(group_aliases): Only regular variables need to be removed
from the alias set of a name tag.
* tree-ssa-copy.c (may_propagate_copy): Do not allow copy
propagation if the two types are not compatible.
(merge_alias_info): Rename from replace_ssa_names_ann.
Add more checking.
(replace_exp_1): If both arguments are SSA_NAMEs, check that
the propagation can be done.
Only call merge_alias_info on pointers.
(propagate_value): Likewise.
* tree-ssa-copyrename.c: Include langhooks.h.
(copy_rename_partition_coalesce): Call replace_ssa_name_symbol
to do the merging.
Do not coalesce variables with incompatible types.
(rename_ssa_copies): Call replace_ssa_name_symbol.
* tree-ssa.c (verify_ssa_name): Verify that the SSA_NAME has
the same type as the underlying _DECL.
* tree-ssanames.c (replace_ssa_name_symbol): New function.
* tree.h (replace_ssa_name_symbol): Declare.
From-SVN: r85108
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* expr.c (expand_expr_real_1): Don't handle non-local variables.
* expr.h (fix_lexical_addr): Remove.
* function.c (NEED_SEPARATE_AP): Remove.
(fix_lexical_addr): Remove.
* tree-alias-common.c (get_alias_var_decl): Check TREE_STATIC,
not null decl_function_context.
(create_alias_vars): Likewise.
* tree-cfg.c (make_ctrl_stmt_edges): Don't check for non-local labels.
(simple_goto_p): Likewise.
* tree-dfa.c (add_referenced_var): Don't check for non-local variables.
* tree-ssa-ccp.c (get_default_value): Likewise.
* tree-tailcall.c (suitable_for_tail_opt_p): Likewise.
* tree.c (needs_to_live_in_memory): Likewise.
* tree-flow-inline.h (may_be_aliased): Move...
* tree-ssa-alias.c (may_be_aliased): ... here. Enhance check for
when TREE_STATIC variables may be addressable.
From-SVN: r85099
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* tree-into-ssa.c (set_livein_block): Fix typo in comment.
(rewrite_ssa_into_ssa): Start iterating over SSA names at 1.
Release SSA names that have been re-renamed.
* tree-phinodes.c (make_phi_node): Set same TREE_TYPE as the
variable.
* tree-ssa-alias.c (init_alias_info): If aliases have been
computed before, clear existing alias information.
(create_name_tags): Do no fixup PT_ANYTHING pointers.
If the new name tag for a pointer is different than the one it
had before, mark the old tag for renaming.
(replace_may_alias): New function.
(group_aliases): Call it.
(setup_pointers_and_addressables): Always call get_tmt_for.
(maybe_create_global_var): Don't create .GLOBAL_VAR more than
once.
(set_pt_anything): New local function.
(set_pt_malloc): New local function.
(merge_pointed_to_info): Don't merge pointed-to variables from
the original pointer if the destination is pointing to an
unknown location.
(add_pointed_to_expr): Call set_pt_anything and set_pt_malloc.
(add_pointed_to_var): Do not add a variable to the points-to
set if the pointer is already pointing to anywhere.
(collect_points_to_info_r): If the defining statement is a PHI
node, only merge pointed-to information if the argument has
already been visited.
(get_tmt_for): Only create a new tag if the pointer didn't
have one already.
(dump_alias_info): Emit more information.
(dump_points_to_info_for): Likewise.
* tree-ssa-dom.c (redirect_edges_and_update_ssa_graph): Don't
try to get the annotation of an SSA_NAME.
* tree-ssa-operands.c (add_stmt_operand): Only check for empty
alias sets when checking is enabled.
* tree-ssa-pre.c (need_eh_cleanup): New local variable.
(eliminate): Mark basic blocks that will need
EH information cleaned up.
(init_pre): Split ENTRY_BLOCK->0 if block 0 has more than one
predecessor.
Initialize need_eh_cleanup.
(fini_pre): Call tree_purge_all_dead_eh_edges and
cleanup_tree_cfg if needed.
Free need_eh_cleanup.
* tree-ssa.c (verify_ssa_name): New function.
(verify_def): Call it.
Re-arrange to avoid printing too many error messages.
(verify_use): Likewise.
(verify_phi_args): Likewise.
(verify_flow_insensitive_alias_info): New function.
(verify_flow_sensitive_alias_info): New function.
(verify_alias_info): New function.
(verify_ssa): Call verify_alias_info.
Clear TREE_VISITED on all the SSA_NAMEs before scanning the
program.
Re-arrange to avoid printing too many error messages.
* tree-ssanames.c (make_ssa_name): Clear
SSA_NAME_IN_FREE_LIST.
(release_ssa_name): Never release a default definition.
(release_defs): New function.
* tree.h: Declare it.
* tree-ssa-dce.c (remove_dead_stmt): Call it.
* tree-ssa.c (walk_use_def_chains_1): Add new argument IS_DFS.
If true, do a depth-first search. Do a breadht-first search,
otherwise.
(walk_use_def_chains): Add new argument IS_DFS.
Update all users.
* tree-flow.h (walk_use_def_chains): Update prototype.
From-SVN: r85052
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* tree-def (WITH_SIZE_EXPR): New.
* explow.c (expr_size, int_expr_size): Handle WITH_SIZE_EXPR.
* expr.c (expand_expr_real_1): Likewise.
* gimplify.c (maybe_with_size_expr): New.
(gimplify_arg, gimplify_modify_expr): Use it.
(gimplify_modify_expr_to_memcpy): Take size parameter.
(gimplify_modify_expr_to_memset): Likewise.
(gimplify_expr): Handle WITH_SIZE_EXPR.
* tree-alias-common.c (find_func_aliases): Likewise.
* tree-eh.c (tree_could_trap_p): Likewise.
(tree_could_throw_p): Likewise.
* tree-gimple.c (is_gimple_lvalue): Likewise.
(get_call_expr_in): Likewise.
* tree-inline.c (estimate_num_insns_1): Likewise.
(expand_calls_inline): Likewise.
* tree-nested.c (convert_call_expr): Likewise.
* tree-pretty-print.c (dump_generic_node): Likewise.
* tree-sra.c (sra_walk_expr): Likewise.
* tree-ssa-alias.c (add_pointed_to_expr): Likewise.
* tree-ssa-ccp.c (get_rhs, set_rhs): Likewise.
* tree-ssa-operands.c (get_expr_operands): Likewise.
* tree-tailcall.c (find_tail_calls): Likewise.
* calls.c (expand_call): Reset old_stack_allocated after
calling emit_stack_restore.
* gcc.c-torture/compile/20020210-1.c: Remove XFAIL.
From-SVN: r84833
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* tree-flow.h (struct var_ann_d): Remove has_hidden_use.
* gimple-low.c (expand_var_p): Don't check it.
* tree-ssa-alias.c (setup_pointers_and_addressables): Likewise.
* tree-ssa-copyrename.c (rename_ssa_copies): Likewise.
* tree-ssa-operands.c (add_stmt_operand): Likewise.
* tree-dfa.c (find_hidden_use_vars, find_hidden_use_vars_r): Kill.
(find_referenced_vars): Don't call them.
* tree-flow-inline.h (has_hidden_use, set_has_hidden_use): Kill.
From-SVN: r84830
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PR tree-optimization/16443
* tree-ssa-alias.c: Add more description for
CALL_CLOBBERED_VARS and ADDRESSABLE_VARS.
* tree-ssa-operands.c (get_asm_expr_operands): Re-order the
clobbering of call-clobbered and addressable variables. If
there are any before aliases have been computed, add them.
testsuite/ChangeLog
PR tree-optimization/16443
* gcc.dg/tree-ssa/20040713-1.c: New test.
From-SVN: r84641
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its points-to information.
* tree-dfa.c (dump_variable): If the variable is a pointer
SSA_NAME, also dump its points-to information.
* tree-flow.h (struct ptr_info_def): Add field
is_dereferenced.
(dump_points_to_info_for): Declare.
(debug_points_to_info_for): Declare.
* tree-optimize.c (init_tree_optimization_passes): Add a
second alias analysis pass after DOM2.
Move pass_del_pta to a later spot.
* tree-ssa-alias.c (compute_points_to_and_addr_escape): Do not
create a name tags when we find a dereferenced pointer. Just
mark the pointer dereferenced.
(collect_points_to_info_for): Move code to clear points-to
information to create_name_tags.
(create_name_tags): New function.
(compute_flow_sensitive_aliasing): Call it.
(setup_pointers_and_addressables): Mark type tags for renaming
here instead of ...
(create_memory_tag): ... here.
(merge_pointed_to_info): Do not merge PT_MALLOC attributes.
(dump_points_to_info_for): Declare extern.
(debug_points_to_info_for): New function.
From-SVN: r84377
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* tree-flow.h (addressable_vars): Declare.
* tree-ssa-alias.c (addressable_vars): Define.
(setup_pointers_and_addressables): Add addressable variables
to addressable_vars.
* tree-ssa-operands.c (get_stmt_operands): Move
handling of ASM_EXPRs ...
(get_asm_expr_operands): ... here.
When the ASM_EXPR clobbers memory, also clobber addressable
variables.
* tree-ssa.c (init_tree_ssa): Initialize addressable_vars.
(delete_tree_ssa): Reset addressable_vars.
From-SVN: r84272
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* tree.h (PHI_CHAIN): New.
* (tree-cfg.c, tree-dfa.c, tree-flow-inline.h, tree-into-ssa.c,
tree-outof-ssa.c, tree-phinodes.c, tree-pretty-print.c,
tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-dom.c, tree-ssa-dse.c,
tree-ssa-live.c, tree-ssa-loop.c, tree-ssa-phiopt.c, tree-ssa-pre.c,
tree-ssa.c, tree-tailcall.c): Use PHI_CHAIN instead of TREE_CHAIN
when traversing a list of PHI_NODEs.
From-SVN: r83273
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and V_MUST_DEF.
* doc/tree-ssa.texi: Remove references to VDEF and add descriptions
of V_MAY_DEF and V_MUST_DEF.
* tree-dfa.c (dfa_stats_d): Add num_v_must_defs and rename
num_vdefs to num_v_may_defs.
(compute_immediate_uses_for_stmt): Rename occurences of vdef
to v_may_def.
(redirect_immediate_uses): Ditto.
(dump_dfa_stats): Ditto. Also added code to dump num_v_must_defs.
(collect_dfa_stats_r): Rename occurences of vdef to v_may_def.
Also add code to sum up the number of v_must_defs.
(vdefs_disappeared_p): Replace with...
(v_may_defs_disappeared_p): This.
(v_must_defs_disappeared_p): New function.
(mark_new_vars_to_rename): Rename occurences of vdef to v_may_def.
Also add code to mark new variables found in V_MUST_DEFs for
renameing.
* tree-flow.h (stmt_ann_d): Add v_must_def_ops and replace
vdef_ops to v_may_def_ops.
(get_vdef_ops): Replace with...
(get_v_may_def_ops): This.
* tree-flow-inline.h (get_vdef_ops): Replace with...
(get_v_may_def_ops): This.
(get_v_must_def_ops): New function.
(get_vdef_result_ptr): Replace with...
(get_v_may_def_result_ptr): This.
(get_vdef_op_ptr): Ditto with...
(get_v_may_def_op_ptr); This.
(get_v_must_def_op_ptr): New function.
* tree-into-ssa.c (mark_def_sites): Rename occurences of vdef
to v_may_def. Also add code to mark statements with
V_MUST_DEFs as definition sites.
(rewrite_stmt): Rename occurences of vdef to v_may_def. Also
add code to register new V_MUST_DEFs made by the statement.
* tree-outof-ssa.c (VIRTUAL_PARTITION): Update comments.
(check_replaceable): Rename occurences of vdef to v_may_def. Also
add check for V_MUST_DEFs.
(find_replaceable_in_bb): Ditto.
* tree-pretty-print.c (dump_vops): Rename occurences of vdef
to v_may_def. Also add code to dump V_MUST_DEFs.
* tree-sra.c (mark_all_vdefs): Replace with...
(mark_all_v_may_defs): This.
(mark_all_v_must_defs): New function.
(create_scalar_copies): Replace call to mark_all_vdefs with
calls to mark_all_v_may_defs and mark_all_v_must_defs.
(scalarize_structures): Rename occurences of vdef to v_may_def.
Also add a check for V_MUST_DEFs.
(scalarize_modify_expr): Rename occurences of vdef to v_may_def.
* tree-ssa-alias.c (global_var): Update comment.
(compute_may_aliases): Ditto.
(compute_points_to_and_addr_escape): Rename occurences of vdef
to v_may_def. Also add code to mark variables in V_MUST_DEF
operands as being written to.
(group_aliases): Update comment.
(maybe_create_global_var): Ditto.
* tree-ssa.c (verify_ssa): Rename occurences of vdef to v_may_def.
Also add a check for V_MUST_DEFs on GIMPLE registers.
(replace_immediate_uses): Rename occurences of vdef to v_may_def.
* tree-ssa-ccp.c (visit_stmt): Rename occurences of vdef
to v_may_def. Also add code to mark all V_MUST_DEF operands
VARYING.
(initialize): Ditto.
(set_rhs): Rename occurences of vdef to v_may_def. Also add
code to update SSA_NAMEs in V_MUST_DEFs.
* tree-ssa-copy.c (cprop_into_stmt): Rename occurences of vdef
to v_may_def.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Rename
occurences of vdef to v_may_def. Also add code to mark statements
with V_MUST_DEFs as necessary.
(propagate_necessity): Rename occurences of vdef to v_may_def.
* tree-ssa-dom.c (redirect_edges_and_update_ssa_graph): Rename
occurences of vdef to v_may_def. Also add code to mark operands
in V_MUST_DEFs for renaming.
(eliminate_redundant_computations): Rename occurences of vdef
to v_may_def.
(record_equivalences_from_stmt): Rename occurences of vdef
to v_may_def. Also add code to record VUSEs for V_MUST_DEFs.
(optimize_stmt): Remove unnesessary variable vdefs. Update
comment.
(register_definitions_for_stmt): Rename occurences of vdef
to v_may_def. Also add code to register definitions made with
V_MUST_DEFs.
* tree-ssa-dse.c (fix_stmt_vdefs): Replace with...
(fix_stmt_v_may_defs): This.
(fix_phi_uses): Rename occurences of vdef to v_may_def.
(dse_optimize_stmt): Ditto.
* tree-ssa-live.c (create_ssa_var_map): Rename occurences of vdef
to v_may_def. Also add code to mark V_MUST_DEF operands as being
used in virtual operators.
* tree-ssa-loop.c (mark_defs_for_rewrite): Rename occurences of
vdef to v_may_def. Also add code to mark V_MUST_DEF operands for
renaming.
* tree-ssa-operands.c (opf_kill_def): New flag for killing
definitions.
(build_vdefs): Renamed to...
(build_v_may_defs): This.
(build_v_must_defs): New variable.
(voperands_d): Add v_must_def_ops and replace vdef_ops with
v_may_def_ops.
(append_vdef): Replace with...
(append_v_may_def): This.
(append_v_must_def): New function.
(NUM_FREE): Increment for V_MUST_DEF
(optype_freelist): Increment its size for V_MUST_DEF
(allocate_vdef_optype): Replace with...
(allocate_v_may_def_optype): This.
(allocate_v_must_def_optype): New function.
(free_vdefs): Replace with...
(free_v_may_defs): This.
(free_v_must_defs): New function.
(remove_vdefs): Replace with...
(remove_v_may_defs): This.
(remove_v_must_defs): New function.
(init_ssa_operands): Rename occurences of vdef to v_may_def. Also
add code to initialize build_v_must_defs.
(finalize_ssa_vdefs): Replace with...
(finalize_ssa_v_may_defs): This.
(finalize_ssa_vuses): Rename occurences of vdef to v_may_def.
(finalize_ssa_v_must_defs): New function.
(finalize_ssa_stmt_operands): Replace call to finalize_ssa_vdefs
with calls to finalize_ssa_v_may_defs and finalize_ssa_v_must_defs.
(verify_start_operands): Rename occurences of vdef to v_may_def.
Also add check for build_v_must_defs.
(get_stmt_operands): Rename occurences of vdef to v_may_def.
Also add code to handle V_MUST_DEFs and to use opf_kill_def for
killing definitions.
(get_expr_operands): Update comment and use opf_kill_def for
killing definitions.
(add_stmt_operand): Replace code that appends VDEFs with code
that appends V_MUST_DEFs when opf_kill_def is set and V_MAY_DEFs
otherwise.
(add_call_clobber_ops): Update comments.
* tree-ssa-operands.h (vdef_optype_d): Replace with...
(v_may_def_optype_d): This.
(v_must_def_optype_d): New structure.
(VDEF_OPS): Replace with...
(V_MAY_DEF_OPS): This.
(STMT_VDEF_OPS): Same with...
(STMT_V_MAY_DEF_OPS): This.
(NUM_VDEFS): And...
(NUM_V_MAY_DEFS): This.
(VDEF_RESULT_PTR): As well as...
(V_MAY_DEF_RESULT_PTR): This.
(VDEF_RESULT): Same goes for...
(V_MAY_DEF_RESULT): This.
(VDEF_OP_PTR): And...
(V_MAY_DEF_OP_PTR): This.
(VDEF_OP): And...
(V_MAY_DEF_OP): This.
(V_MUST_DEF_OPS): New macro.
(STMT_V_MUST_DEF_OPS): Ditto.
(NUM_V_MUST_DEFS): Ditto.
(V_MUST_DEF_OP_PTR): Ditto.
(V_MUST_DEF_OP): Ditto.
(remove_vdefs): Replace signature with...
(remove_v_may_defs): This.
(remove_v_must_defs): New function signature.
* tree-ssa-pre.c (subst_phis): Replace call to remove_vdefs
with calls to remove_v_may_defs and remove_v_must_defs.
(process_left_occs_and_kills): Rename occurences of vdef to v_may_def.
Also add code that marks left occurences of operands in V_MUST_DEFs.
* tree-tailcall.c (find_tail_calls): Rename occurences of vdef
to v_may_def. Also add check for V_MUST_DEFs.
(eliminate_tail_call):Rename occurences of vdef to v_may_def.
testsuite:
* gcc.dg/tree-ssa/20031015-1.c: Scan for
V_MAY_DEF instead of VDEF.
* gcc.dg/tree-ssa/20040517-1.c: Ditto.
From-SVN: r82947
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* tree-dfa.c (create_ssa_name_ann): Remove.
* tree-flow-inline.h (ssa_name_ann, get_ssa_name_ann): Remove.
* tree-flow.h (enum tree_ann_type): Remove SSA_NAME_ANN.
(struct ssa_name_ann_d): Remove.
(union tree_ann_d): Update.
(ssa_name_ann_t): Remove.
* tree-ssa-alias.c: (get_ptr_info): New local function.
Replace references to ssa_name_ann_t with struct ptr_info_def.
* tree-ssa-operands.c (get_expr_operands): Likewise.
* tree.h (SSA_NAME_PTR_INFO): Define.
(struct ptr_info_def): Declare.
(struct tree_ssa_name): Add field 'ptr_info'.
From-SVN: r82864
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* bb-reorder.c, builtins.c, c-common.c, c-gimplify.c,
c-incpath.c, cgraphunit.c, ddg.c, defaults.h, dwarf2out.c,
expmed.c, flags.h, gcc.c, gensupport.c, gimplify.c, global.c,
passes.c, reg-stack.c, target.h, toplev.c, tree-alias-ander.c,
tree-alias-common.c, tree-cfg.c, tree-complex.c, tree-dfa.c,
tree-eh.c, tree-mudflap.c, tree-mudflap.h, tree-outof-ssa.c,
tree-phinodes.c, tree-pretty-print.c, tree-ssa-alias.c,
tree-ssa-ccp.c, tree-ssa-live.c, tree-ssa-live.h,
tree-ssa-pre.c, tree.h, value-prof.h, varasm.c: Fix comment
formatting.
From-SVN: r82463
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lang_hooks.foo.
* c-gimplify.c (c_genericize):
Replace calls via (*lang_hooks.foo) with lang_hooks.foo.
* c-parse.in <expr_no_commas>: Likewise.
<if_prefix>: Likewise.
<select_or_iter_stmt>: Likewise.
* expr.c (expand_var, expand_expr_real_1): Likewise.
* expr.h (expand_expr): Make it a static inline function.
Move prototype for expand_expr_real up before this.
* fold-const.c (fold_relational_hi_lo, fold_relational_const):
Likewise.
* gimplify.c (gimple_boolify, gimplify_addr_expr,
gimplify_asm_expr, gimplify_expr): Likewise.
* tree-cfg.c (dump_tree_cfg, dump_cfg_stats, tree_cfg2vcg,
dump_function_to_file): Likewise.
* tree-dfa.c (dump_immediate_uses, dump_dfa_stats): Likewise.
* tree-inline.c (remap_block, save_body, walk_tree): Likewise.
* tree-into-ssa.c (dump_tree_ssa): Likewise.
* tree-mudflap.c (mf_varname_tree, mf_file_function_line_tree):
Likewise.
* tree-optimize.c (execute_one_pass): Likewise.
* tree-pretty-print.c (dump_generic_bb_buff): Likewise.
* tree-ssa-alias.c (dump_alias_stats, dump_alias_info): Likewise.
objc/
* objc-act.c (objc_build_try_enter_fragment,
objc_build_try_epilogue, objc_build_catch_stmt,
objc_build_finally_prologue): Replace calls via (*lang_hooks.foo)
with lang_hooks.foo ().
From-SVN: r81907
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* tree-gimple.c: Rename from tree-simple.c.
* tree-gimple.h: Rename from tree-simple.h.
* c-gimplify.c: Rename from c-simplify.c
* Makefile.in, c-decl.c, gimple-low.c, gimplify.c,
langhooks.c, tree-alias-ander.c, tree-alias-common.c,
tree-complex.c, tree-dfa.c, tree-flow.h, tree-inline.c,
tree-into-ssa.c, tree-iterator.c, tree-mudflap.c,
tree-nested.c, tree-nomudflap.c, tree-outof-ssa.c, tree-sra.c,
tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-copyrename.c,
tree-ssa-dce.c, tree-ssa-live.c, tree-ssa-pre.c, tree-ssa.c:
Update.
cp/ChangeLog
* cp-gimplify.c: Rename from cp-simplify.c.
* Make-lang.in, optimize.c: Update.
fortran/ChangeLog
* Make-lang.in, f95-lang.c, trans-array.c, trans-decl.c,
trans-expr.c, trans-intrinsic.c, trans-io.c, trans-stmt.c,
trans.c: Rename tree-simple.[ch] to tree-gimple.[ch].
java/ChangeLog
* Make-lang.in, expr.c, java-gimplify.c: Rename
tree-simple.[ch] to tree-gimple.[ch].
From-SVN: r81829
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BITMAP_XMALLOC.
2004-05-13 Andrew Pinski <pinskia@physics.uc.edu>
* tree-ssa-alias.c (delete_alias_info): XFREE bitmaps allocated
with BITMAP_XMALLOC.
From-SVN: r81789
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From-SVN: r81764
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