* tree-ssa-loop-ivopts.c: Include tree-affine.h.
(divide): Removed.
(constant_multiple_of): Fix order of operators for division.
(aff_combination_const, aff_combination_elt, aff_combination_scale,
aff_combination_add_elt, aff_combination_add, aff_combination_convert,
tree_to_aff_combination, add_elt_to_tree, unshare_aff_combination,
aff_combination_to_tree): Moved to tree-affine.c and made to work with
double_int coefficients.
(get_computation_aff, get_computation_at): Work with double_int
coefficients.
(get_computation_cost_at): Do not use divide.
(rewrite_use_nonlinear_expr, rewrite_use_address, rewrite_use_compare):
Assert that expressing the computation did not fail.
* tree-ssa-address.c: Include tree-affine.h.
(add_to_parts, most_expensive_mult_to_index, addr_to_parts,
create_mem_ref): Work with double_int coefficients.
* tree-affine.c: New file.
* tree-affine.h: New file.
* tree-flow.h (struct affine_tree_combination): Removed.
* Makefile.in (tree-affine.o): Add.
(tree-ssa-address.o, tree-ssa-loop-ivopts.o): Add tree-affine.h
dependency.
From-SVN: r119854
* tree-ssa-operands.h (create_ssa_artificial_load_stmt):
Rename from create_ssa_artficial_load_stmt. Update all users.
* tree-into-ssa.c (register_new_def): Make static.
* tree.c (is_global_var): Handle SSA_NAMEs.
* tree.h (SSA_NAME_IS_DEFAULT_DEF): Define. Update all users
that used to call gimple_default_def.
* tree-ssa-operands.c (push_stmt_changes): New.
(pop_stmt_changes): New. Update every pass that modifies
statements to bracket modifications with
push_stmt_changes/pop_stmt_changes.
(discard_stmt_changes): New.
* tree-ssa-dom.c (stmts_to_rescan): Change to stack of
'tree *' instead of 'tree'. Update all users.
* tree-flow-inline.h (zero_imm_uses_p): New.
(symbol_mem_tag): New. Update every function that used
to access the annotation directly.
(set_symbol_mem_tag): Likewise.
* tree-dfa.c (dump_variable): Always show the escape mask.
(mark_symbols_for_renaming): Rename from
mark_new_vars_to_rename. Update all users.
Only mark to rename naked symbols in real and virtual
operands.
From-SVN: r119746
* tree-phinodes.c (remove_phi_node): Add argument
RELEASE_LHS_P. If given, release the SSA name on the LHS of
the PHI node.
Update all users.
* tree-ssa-dce.c: Remove forward declarations for static
functions. Re-arrange functions bodies as needed.
(find_obviously_necessary_stmts): Never mark PHI nodes as
obviously necessary.
From-SVN: r119740
* tree-flow.h (multiplier_allowed_in_address_p): Adjust prototype.
* tree-ssa-loop-ivopts.c (multiplier_allowed_in_address_p): New
arg MODE; all callers changed. Use it to determine validity per
machine mode instead of using Pmode for all memory references.
(get_address_cost): Likewise add and use new arg MEM_MODE.
From-SVN: r118856
PR middle-end/29256
* tree-ssa-loop-ivopts.c (determine_base_object): Handle pointers
casted to integer type.
(get_address_cost): Decrease cost of [symbol + index] addressing modes
if they are significantly more expensive than [reg + index] ones.
* gcc.dg/tree-ssa/loop-19.c: New test.
From-SVN: r117513
* tree-ssa-loop-ivopts.c (aff_combination_convert,
determine_common_wider_type): New functions.
(get_computation_aff): Use them to simplify arithmetic between
UBASE and CBASE if they are shortened from the same type.
Co-Authored-By: Adam Nemet <anemet@caviumnetworks.com>
From-SVN: r117182
PR tree-optimization/27865
* tree-vrp.c (adjust_range_with_scev): Do not use TYPE_{MIN,MAX}_VALUE
for pointer types.
* tree-scalar-evolution.c (fold_used_pointer_cast, pointer_offset_p,
fold_used_pointer, pointer_used_p): New functions.
(analyze_scalar_evolution_1): Use fold_used_pointer.
* tree-chrec.c (convert_affine_scev): Convert no-op casts correctly.
* tree-ssa-loop-ivopts.c (generic_type_for): Return integral type
for pointers.
From-SVN: r116213
* tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): New function.
(find_interesting_uses_address): Punt if above function returns true.
From-SVN: r114851
PR tree-optimization/27639
PR tree-optimization/26719
* tree-vrp.c (adjust_range_with_scev): Use scev_direction and adjust
call to scev_probably_wraps_p.
* tree-ssa-loop-niter.c (compare_trees, convert_step_widening,
used_in_pointer_arithmetic_p, convert_step): Removed.
(nowrap_type_p): New function.
(scev_probably_wraps_p): Rewritten.
* tree-scalar-evolution.c (instantiate_parameters_1): Do not call
chrec_convert if chrec_convert_aggressive might have been used.
* tree-chrec.c (convert_affine_scev, chrec_convert_1,
scev_direction): New functions.
(chrec_convert): Changed to a wrapper over chrec_convert_1.
* tree-ssa-loop-ivopts.c (idx_find_step): Use convert_affine_scev
instead of convert_step.
* tree-flow.h (scev_probably_wraps_p): Declaration changed.
(convert_step): Declaration removed.
(convert_affine_scev, nowrap_type_p, scev_direction): Declare.
* gcc.dg/pr27639.c: New test.
* gcc.dg/pr26719.c: New test.
* gcc.dg/tree-ssa/scev-cast.c: New test.
From-SVN: r114057
2006-05-23 Andrew MacLeod <amacleod@redhat.com>
PR c++/26757
* tree-ssa-loop-im.c (determine_invariantness_stmt): Use
add_referenced_var instead of add_referenced_tmp_var.
* tree-complex.c (create_one_component_var): Use add_referenced_var.
* tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
add_referenced_var.
* tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
tree_optimize_tail_calls_1): Use add_referenced_var.
* tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
* tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
Use add_referenced_var.
* tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
* gimplify.c (force_gimple_operand): Use add_referenced_var.
* tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
Use add_referenced_var.
* tree-dfa.c (struct walk_state): Remove.
(find_referenced_vars): Remove walk state and vars_found hash table.
(make_rename_temp): Use add_referenced_var.
(find_vars_r): Pass less parameters to add_referenced_var.
(referenced_var_p): New. Is var in referenced_var hash table.
(referenced_var_insert): Assert var isn't already in hash table.
(add_referenced_var): Don't need walk_state parameter. Add var if it
isn't already in the hash table.
(add_referenced_tmp_var): Remove.
(find_new_referenced_vars_1): Use add_referenced_var.
* tree-ssa-pre.c (create_expression_by_pieces,
insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
Use add_referenced_var.
* tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
* lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use
add_referenced_var.
* tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
vect_create_data_ref_ptr, vect_create_destination_var,
vect_init_vector, vect_build_loop_niters,
vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
Use add_referenced_var.
* tree-outof-ssa.c (create_temp): Use add_referenced_var.
* tree-flow.h (add_referenced_tmp_var): Remove prototype
(add_referenced_var): Add prototype.
* tree-ssa-structalias.c (get_constraint_for,
intra_create_variable_infos): Use add_referenced_var.
From-SVN: r114018
PR tree-optimization/27548
* tree-scalar-evolution.c (scev_const_prop): Do not prolong life
range of ssa names that appear on abnormal edges.
* tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Export.
* tree-flow.h (contains_abnormal_ssa_name_p): Declare.
From-SVN: r113853
PR tree-optimization/27283
* tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
not whole # of iteration descriptions.
(niter_for_exit): Return just # of iterations. Fail if # of iterations
uses abnormal ssa name.
(niter_for_single_dom_exit): Ditto.
(find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
return just the number of iterations.
* g++.dg/tree-ssa/pr27283.C: New test.
From-SVN: r113427
2006-05-01 Richard Guenther <rguenther@suse.de>
PR tree-optimization/26726
* tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
problem ...
(find_interesting_uses_address): ... we work around here
by folding INDIRECT_REFs in the substituted base.
* g++.dg/tree-ssa/ivopts-1.C: New testcase.
From-SVN: r113414
* tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
Update all users.
* tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
Update all users.
(TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
Update all users.
* tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
Update all users.
* tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
to 'symbol_mem_tag'.
Update all users.
* doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
rename.
From-SVN: r111617
* cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
* emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
(copy_insn_1): Likewise. Don't copy each field individually.
Reindent.
* read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
of RTX_SIZE.
* reload1.c (eliminate_regs): Use shallow_copy_rtx.
* rtl.c (rtx_size): Rename variable to...
(rtx_code_size): ...this.
(rtx_size): New function.
(rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
(copy_rtx): Use shallow_copy_rtx. Don't copy each field individually.
Reindent.
(shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
* rtl.h (rtx_code_size): New variable.
(rtx_size): Change from a variable to a function.
(RTX_SIZE): Rename to...
(RTX_CODE_SIZE): ...this.
PR target/9703
PR tree-optimization/17106
* doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
(Anchored Addresses): New section.
* doc/invoke.texi (-fsection-anchors): Document.
* doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
(SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
(SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
* hooks.c (hook_bool_mode_rtx_false): New function.
* hooks.h (hook_bool_mode_rtx_false): Declare.
* gengtype.c (create_optional_field): New function.
(adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
SYMBOL_REF_IN_BLOCK_P is true.
* target.h (output_anchor, use_blocks_for_constant_p): New hooks.
(min_anchor_offset, max_anchor_offset): Likewise.
(use_anchors_for_symbol_p): New hook.
* toplev.c (compile_file): Call output_object_blocks.
(target_supports_section_anchors_p): New function.
(process_options): Check that -fsection-anchors is only used on
targets that support it and when -funit-at-a-time is in effect.
* tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
if the decl doesn't have one.
* dwarf2out.c: Remove instantiations of VEC(rtx,gc).
* expr.c (emit_move_multi_word, emit_move_insn): Pass the result
of force_const_mem through use_anchored_address.
(expand_expr_constant): New function.
(expand_expr_addr_expr_1): Call it. Use the same modifier when
calling expand_expr for INDIRECT_REF.
(expand_expr_real_1): Pass DECL_RTL through use_anchored_address
for all modifiers except EXPAND_INITIALIZER. Use expand_expr_constant.
* expr.h (use_anchored_address): Declare.
* loop-unroll.c: Don't declare rtx vectors here.
* explow.c: Include output.h.
(validize_mem): Call use_anchored_address.
(use_anchored_address): New function.
* common.opt (-fsection-anchors): New switch.
* varasm.c (object_block_htab, anchor_labelno): New variables.
(hash_section, object_block_entry_eq, object_block_entry_hash)
(use_object_blocks_p, get_block_for_section, create_block_symbol)
(use_blocks_for_decl_p, change_symbol_section): New functions.
(get_variable_section): New function, split out from assemble_variable.
(make_decl_rtl): Create a block symbol if use_object_blocks_p and
use_blocks_for_decl_p say so. Use change_symbol_section if the
symbol has already been created.
(assemble_variable_contents): New function, split out from...
(assemble_variable): ...here. Don't output any code for
block symbols; just pass them to place_block_symbol.
Use get_variable_section and assemble_variable_contents.
(get_constant_alignment, get_constant_section, get_constant_size): New
functions, split from output_constant_def_contents.
(build_constant_desc): Create a block symbol if use_object_blocks_p
says so. Or into SYMBOL_REF_FLAGS.
(assemble_constant_contents): New function, split from...
(output_constant_def_contents): ...here. Don't output any code
for block symbols; just pass them to place_section_symbol.
Use get_constant_section and get_constant_alignment.
(force_const_mem): Create a block symbol if use_object_blocks_p and
use_blocks_for_constant_p say so. Or into SYMBOL_REF_FLAGS.
(output_constant_pool_1): Add an explicit alignment argument.
Don't switch sections here.
(output_constant_pool): Adjust call to output_constant_pool_1.
Switch sections here instead. Don't output anything for block symbols;
just pass them to place_block_symbol.
(init_varasm_once): Initialize object_block_htab.
(default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
(default_asm_output_anchor, default_use_aenchors_for_symbol_p)
(place_block_symbol, get_section_anchor, output_object_block)
(output_object_block_htab, output_object_blocks): New functions.
* target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
(TARGET_ASM_OUT): Include it.
(TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
(TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
(TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
(TARGET_INITIALIZER): Include them.
* rtl.c (rtl_check_failed_block_symbol): New function.
* rtl.h: Include vec.h. Declare heap and gc rtx vectors.
(block_symbol, object_block): New structures.
(rtx_def): Add a block_symbol field to the union.
(BLOCK_SYMBOL_CHECK): New macro.
(rtl_check_failed_block_symbol): Declare.
(SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
(SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
(SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
(SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
* output.h (output_section_symbols): Declare.
(object_block): Name structure.
(place_section_symbol, get_section_anchor, default_asm_output_anchor)
(default_use_anchors_for_symbol_p): Declare.
* Makefile.in (RTL_BASE_H): Add vec.h.
(explow.o): Depend on output.h.
* config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
(TARGET_MAX_ANCHOR_OFFSET): Likewise.
(TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
(rs6000_use_blocks_for_constant_p): New function.
From-SVN: r111254
* tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
(struct ivopts_data): Add regs_used field.
(tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
(ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
instead of loop_data->regs_used;
(free_loop_data): Do not free aux fields for loops.
(tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
and tree_ssa_iv_optimize_finalize.
From-SVN: r110813
PR tree-optimization/18527
* tree-ssa-loop-niter.c (number_of_iterations_cond,
number_of_iterations_special, number_of_iterations_exit):
Move base and step of an iv to a single structure. Add
no_overflow flag, and use it in # of iterations analysis.
* tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
folded_casts argument.
(simple_iv): Pass base and step in a structure. Set no_overflow
flag.
(scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
Evaluate expensiveness of computing # of iterations instead of
the final expression.
* tree-scalar-evolution.h (affine_iv): New structure.
(simple_iv): Declaration changed.
* tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
* tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
find_givs_in_stmt): Changed due to simple_iv change.
* gcc.dg/tree-ssa/loop-15.c: New test.
From-SVN: r109427
2006-01-05 Richard Guenther <rguenther@suse.de>
PR tree-optimization/22555
* tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
if one structure field is an array.
* tree-ssa-operands.c (get_expr_operands): Continue scanning
operands even if we found a subvar, but ignore VOPs in this
case.
* tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
for renaming.
* tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
* gcc.dg/tree-ssa/alias-3.c: New testcase.
From-SVN: r109381
PR tree-optimization/24793
* tree-ssa-loop-ivopts.c (get_ref_tag): Remember the
original reference if there are subvars.
* tree-ssa-operands.c (get_tmr_operands): Handle subvars.
From-SVN: r108808
* tree-ssa-loop-ivopts.c (get_address_cost): Prevent splitting
addressing modes during calculation of costs.
* testsuite/gcc.dg/tree-ssa/loop-2.c: Fix outcome.
* testsuite/gcc.dg/tree-ssa/loop-3.c: Change type of loop control
variable.
From-SVN: r106842
PR tree-optimization/21963
* tree-ssa-loop-ivopts.c (get_computation_aff): Use
constant_multiple_of in the same way get_computation_cost_at does.
From-SVN: r101654
