2007-08-27 Sandra Loosemore <sandra@codesourcery.com>
David Ung <davidu@mips.com>
Nigel Stephens <nigel@mips.com>
gcc/
Separate target-specific initialization from general
back-end initialization.
* toplev.c (init_alignments): New, split out from...
(process_options): ...here.
(backend_init_target): New, split out from...
(backend_init): ...here.
(lang_dependent_init_target): New, split out from...
(lang_dependent_init): ...here.
(target_reinit): New.
* toplev.h (target_reinit): Declare.
* expr.c (init_expr_target): Renamed from init_expr_once, since it
now can be called more than once. Update comments.
* expr.h (init_expr_target): Likewise.
* alias.c (init_alias_target): Renamed from init_alias_once, since it
now can be called more than once. Explicitly zero
static_reg_base_value.
* emit-rtl.c (init_emit_regs): New, split out from...
(init_emit_once): Here.
* regclass.c (initial_fixed_regs, initial_call_used_regs): Make
non-const, so that changes from command-line arguments can overwrite
values provided by the static initializers.
(initial_call_really_used_regs): New, used similarly to the above.
(initial_reg_names): Likewise.
(last_mode_for_init_move_cost): Promoted function-local static to
file-scope static to make it accessible outside init_move_cost.
(init_reg_sets): Do not initialize fixed_regs and call_used_regs yet.
Do not initialize inv_reg_alloc_order yet, either. Do initialize
reg_names since it is needed for parsing command-line options.
(init_move_cost): Use last_mode_for_init_move_cost instead of
function-local static.
(init_reg_sets_1): Initialize fixed_regs, call_used_regs, and
call_really_used_regs now. Reinitialize reg_names. Also
initialize inv_reg_alloc_order. Zero reg_class_subunion and
reg_class_superunion. Clear losing_caller_save_reg_set.
Preserve global registers if called more than once. Reset
move cost, may_move_in_cost, may_move_out_cost, and
last_mode_for_init_move_cost.
(init_reg_modes_target): Renamed from init_reg_modes_once, since it
can now be invoked more than once. Update comments.
(init_regs): Update comments.
(fix_register): Update initial_fixed_regs, initial_call_used_regs,
and initial_call_really_used_regs, instead of the non-initial
variables. This allows us to save the command-line register settings
after target reinitialization.
(init_reg_autoinc): Zero forbidden_inc_dec_classes.
* rtl.h (init_emit_regs): Declare.
(init_reg_modes_target, init_alias_target): Renamed as described
above.
* reload1.c (init_reload): Update comments.
* optabs.c (init_optabs): Likewise.
* cfgloopanal.c (init_set_costs): Explicitly zero target_avail_regs.
Co-Authored-By: David Ung <davidu@mips.com>
Co-Authored-By: Nigel Stephens <nigel@mips.com>
From-SVN: r127832
2007-08-24 Sandra Loosemore <sandra@codesourcery.com>
Nigel Stephens <nigel@mips.com>
PR target/11787
gcc/
* doc/tm.texi (SET_RATIO, SET_BY_PIECES_P): Document new macros.
(STORE_BY_PIECES_P): No longer applies to __builtin_memset.
* expr.c (SET_BY_PIECES_P): Define.
(can_store_by_pieces, store_by_pieces): Add MEMSETP argument; use
it to decide whether to use SET_BY_PIECES_P or STORE_BY_PIECES_P.
(store_expr): Pass MEMSETP argument to can_store_by_pieces and
store_by_pieces.
* expr.h (SET_RATIO): Define.
(can_store_by_pieces, store_by_pieces): Update prototypes.
* builtins.c (expand_builtin_memcpy): Pass MEMSETP argument to
can_store_by_pieces/store_by_pieces.
(expand_builtin_memcpy_args): Likewise.
(expand_builtin_strncpy): Likewise.
(expand_builtin_memset_args): Likewise. Also remove special case
for optimize_size so that can_store_by_pieces/SET_BY_PIECES_P can
decide what to do instead.
* value-prof.c (tree_stringops_transform): Pass MEMSETP argument
to can_store_by_pieces.
* config/sh/sh.h (SET_BY_PIECES_P): Clone from STORE_BY_PIECES_P.
* config/s390/s390.h (SET_BY_PIECES_P): Likewise.
* config/mips/mips.opt (mmemcpy): Change from Var to Mask.
* config/mips/mips.c (override_options): Make -Os default to -mmemcpy.
* config/mips/mips.h (MIPS_CALL_RATIO): Define.
(MOVE_RATIO, CLEAR_RATIO, SET_RATIO): Define.
(STORE_BY_PIECES_P): Define.
Co-Authored-By: Nigel Stephens <nigel@mips.com>
From-SVN: r127790
* expr.c (store_expr): Optimize initialization of an array
with STRING_CST.
* expr.h (builtin_strncpy_read_str): New prototype.
* builtins.c (builtin_strncpy_read_str): Remove prototype.
No longer static.
* gcc.dg/array-init-1.c: New test.
From-SVN: r127769
gcc/
* expr.h (store_bit_field): Don't return a value.
* expmed.c (check_predicate_volatile_ok): New function.
(store_bit_field_1): New function, extracted from store_bit_field.
Take a fallback_p argument and return true if the operation succeeded.
Only use store_fixed_bit_field if fallback_p. Don't recompute
mode_for_extraction; use op_mode instead. Try forcing memories
into registers if the insv expander fails.
(store_bit_field): Use store_bit_field_1 with fallback_p true.
Don't return a value.
(convert_extracted_bit_field): New function, extracted from
store_bit_field.
(extract_bit_field_1): Likewise. Take a fallback_p argument
and return NULL if the operation succeeded. Only use
extract_fixed_bit_field if fallback_p. Only calculate one
extraction mode. Combine code for extv and extzv. Try forcing
memories into registers if the ext(z)v expander fails.
(extract_bit_field): Use extract_bit_field_1 with fallback_p true.
gcc/testsuite/
* gcc.target/mips/ins-1.c: New test.
From-SVN: r126972
* 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
PR middle-end/25724
* dojump.c (do_jump): Call do_compare_rtx_and_jump.
(do_jump_parts_zero_rtx): New function renamed from
do_jump_parts_equality_rtx. Made static. Add a mode argument.
(do_jump_parts_equality_rtx): New function split out from
do_jump_parts_equality. Old implementation renamed as above.
Call do_jump_parts_zero_rtx if either operand is zero.
(do_jump_parts_equality): Call do_jump_parts_equality_rtx to
do all of the heavy lifting.
(do_compare_rtx_and_jump): Handle multi-word comparisons by
calling either do_jump_by_parts_greater_rtx or
do_jump_by_parts_equality_rtx.
* expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
* expmed.c (do_cmp_and_jump): Now multi-word optimization has
moved to do_compare_rtx_and_jump, call it directly.
* stmt.c (do_jump_if_equal): Remove static prototype. Add a
mode argument. Call do_compare_rtx_and_jump.
(emit_case_nodes): Update calls to do_jump_if_equal.
From-SVN: r110906
2006-01-30 Marcin Dalecki <martin@dalecki.de>
* expr.h (expand_normal): new inline function.
* builtins.c: use it, use EXPAND_NORMAL explicitely.
* dojump.c: use it.
* dwarf2out.c: use it.
* expr.c: use it.
* calls.c: use it.
* expmed.c: use it.
* except.c: use it.
* config/sparc/sparc.c: use it.
* config/i386/i386.c: use it.
* config/rs6000/rs6000.c: use it.
* config/arm/arm.c: use it.
* config/mips/mips.c: use it.
* stmt.c: use it, use EXPAND_NORMAL explicitely.
From-SVN: r110428
2005-07-14 Richard Guenther <rguenther@suse.de>
* Makefile.in (explow.o, reg-stack.o): Depend on target.h.
* calls.c (expand_call): Pass fntype to hard_function_value.
(emit_library_call_value_1): Likewise.
* explow.c: Include target.h.
(hard_function_value): Take extra argument, the fntype.
Use new target hook for function_value.
* expr.h (hard_function_value): Change prototype.
* function.c (aggregate_value_p): Pass 0 as fntype to
hard_function_value.
(assign_parms): Use new target hook for function_value.
Pass 0 as fntype to hard_function_value.
(expand_function_end): Likewise.
* reg-stack.c: Include target.h.
(stack_result): Use new target hook for function_value.
* target-def.h: New target hook function_value.
* target.h: Likewise.
* targhooks.c (default_function_value): New function.
* targhooks.h (default_function_value): Declare.
From-SVN: r102013
PR middle-end/21265
* expr.h (enum block_op_methods): Add BLOCK_OP_TAILCALL.
(clear_storage): Add argument.
* expr.c (emit_block_move_via_libcall, clear_storage_via_libcall):
Add tailcall argument, set CALL_EXPR_TAILCALL of the CALL_EXPR to
tailcall.
(emit_block_move): Handle BLOCK_OP_TAILCALL method.
(clear_storage): Add method argument, handle BLOCK_OP_TAILCALL.
(store_expr, store_constructor): Adjust callers.
* builtins.c (expand_builtin_memcpy): Pass BLOCK_OP_TAILCALL
to emit_block_move if CALL_EXPR_TAILCALL (exp).
(expand_builtin_memmove): Add ORIG_EXP argument, copy
CALL_EXPR_TAILCALL from ORIG_EXP to the new CALL_EXPR.
(expand_builtin_bcopy): Replace ARGLIST and TYPE arguments
with EXP. Pass EXP to expand_builtin_memmove.
(expand_builtin_memset): Add ORIG_EXP argument, pass
BLOCK_OP_TAILCALL to clear_storage if CALL_EXPR_TAILCALL (orig_exp).
(expand_builtin_bzero): Replace ARGLIST argument with EXP.
Pass EXP to expand_builtin_memset.
(expand_builtin_strcmp): Copy CALL_EXPR_TAILCALL from EXP to
the new CALL_EXPR.
(expand_builtin_strncmp): Likewise.
(expand_builtin_printf): Replace ARGLIST argument with EXP.
Copy CALL_EXPR_TAILCALL from EXP to the new CALL_EXPR.
(expand_builtin_fprintf): Likewise.
(expand_builtin): Adjust calls to
expand_builtin_{memmove,bcopy,memset,bzero,{,f}printf}.
* gcc.dg/20050503-1.c: New test.
From-SVN: r99187
PR target/18916
* builtins.c (std_gimplify_va_arg_expr): Adjust alignment of *ap.
* expr.h (struct locate_and_pad_arg_data): Add "boundary".
* function.c (locate_and_pad_parm): Set new field.
(assign_parm_find_stack_rtl): Use it instead of FUNCTION_ARG_BOUNDARY.
Tweak where_pad test to include "none". Always set mem align for
stack_parm.
(assign_parm_adjust_stack_rtl): Discard stack_parm if alignment
not sufficient for type.
(assign_parm_setup_block): If stack_parm is zero on entry, always
make a new stack local. Block move old stack parm if necessary
to new aligned stack local.
(assign_parm_setup_stack): Use a block move to handle
potentially misaligned entry_parm.
(assign_parms_unsplit_complex): Specify required alignment when
creating stack local.
* calls.c (compute_argument_addresses): Override alignment of stack
arg calculated from its type with the alignment given by
FUNCTION_ARG_BOUNDARY.
(store_one_arg): Likewise.
From-SVN: r93179
* alias.c (component_uses_parent_alias_set): Rename from
can_address_p. Return bool. Reverse the sense of the result.
Reinstate the check for alias set zero.
(get_alias_set): Update to match.
* alias.h (component_uses_parent_alias_set): Likewise.
* emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
* expr.c (expand_assignment): Likewise.
* expr.h: Remove commented out prototypes that were moved to alias.h.
From-SVN: r91712
* optabs.h (force_expand_binop): Declare.
* optabs.c (force_expand_binop): Export.
* stmt.c (shift_return_value): Delete.
(expand_return): Don't call it.
* expr.h (shift_return_value): Declare.
* calls.c (shift_returned_value): Delete in favor of...
(shift_return_value): ...this new function. Leave the caller to check
for non-BLKmode values passed in the msb of a register. Take said mode
and a shift direction as argument. Operate on the hard function value,
not a pseudo.
(expand_call): Adjust accordingly.
* function.c (expand_function_start): If a non-BLKmode return value
is padded at the last significant end of the return register, use the
return value's natural mode for the DECL_RESULT, not the mode of the
padded register.
(expand_function_end): Shift the same sort of return values left by
the appropriate amount.
From-SVN: r91187
* calls.c (precompute_register_parameters): Force all PARALLELs
into pseudo registers.
(load_register_parameters): Copy PARALLELs into hard registers.
* function.c (assign_parm_setup_block): Copy PARALLELS into
pseudo registers. Do emit_group_store in conversion_insns.
* expr.c (emit_group_load_1): Rename from emit_group_load, take
tmps as an argument. Move final copy loop ...
(emit_group_load): ... here. New function.
(emit_group_load_into_temps, emit_group_move_into_temps): New.
* expr.h: Declare them.
From-SVN: r90613
* alias.c (record_alias_subset, addr_side_effect_eval):
Make them static.
* alias.h: Remove the prototype for record_alias_subset.
* expr.h: Remove the commented-out prototype for
record_alias_subset.
* rtl.h: Remove the prototype for addr_side_effect_eval.
From-SVN: r90501
* builtins.c (expand_builtin_return_addr,
expand_builtin_longjmp, expand_builtin_trap): Make them static.
* expr.h: Remove the prototypes for expand_builtin_longjmp and
expand_builtin_trap.
* tree.h: Remove the prototype for expand_builtin_return_addr.
From-SVN: r90087
* expr.c (expand_assignment): Remove the last argument.
Change the return type to void.
* expr.h: Update the prototype of expand_assignment.
* function.c (assign_parm_setup_reg): Update a call to
expand_assignment.
* stmt.c (expand_asm_expr): Likewise.
From-SVN: r89275
* expr.h (canonicalize_condition, get_condition): Add an int argument.
* gcse.c (fis_get_condition): Reimplement using get_condition, leaving
it to check whether the condition is still valid at the jump insn.
* ifcvt.c (noce_get_condition): Likewise.
(noce_get_alt_condition): Update call to canonicalize_condition.
* loop-iv.c (simplify_using_initial_values): Update call to
get_condition. Remove FIXME.
(check_simple_exit): Update call to get_condition.
* loop-unswitch.c (may_unswitch_on): Likewise.
* loop.c (check_dbra_loop): Likewise.
(canonicalize_condition, get_condition): Add an argument to say whether
the condition must still be valid at INSN.
(get_condition_for_loop): Update call to get_condition. Require that
the condition be valid at INSN.
* predict.c (estimate_probability): Update call to get_condition.
Remove unused earliest parameter.
(expected_value_to_br_prob): Update call to canonicalize_condition.
From-SVN: r85218
