Include function.h in most files. Remove most of the global variables
duplicated in function.h. Add accessor macros for them which access
current_function. Delete INLINE_HEADER rtx and related code, replace
with code using struct function to store inlining related data.
From-SVN: r28626
* recog.h (enum op_type): Define.
(constrain_operands): Adjust prototype.
(recog_op_type): Declare new variable.
* recog.c (recog_op_type): New variable.
(insn_invalid_p): Allow modifying an asm statement after reload.
(extract_insn): Set up recog_op_type.
(constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
Don't compute operand types, use recog_op_type.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
* reorg.c (fill_slots_from_thread): Likewise.
* reload1.c (reload_as_needed): Likewise.
(gen_reload): Likewise.
(inc_for_reload): Likewise.
(reload_cse_simplify_operands): Likewise.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* genattrtab.c (write_attr_case): Generate call to extract_insn, not
insn_extract.
* final.c (final_scan_insn): Use extract_insn, not insn_extract.
(cleanup_operand_subregs): Use extract_insn, not insn_extract.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* regmove.c (find_matches): Likewise. Change meaning of the return
value to be nonzero if the optimization can be performed, zero if
not. All callers changed.
Shorten some variable names to fix formatting problems.
(regmove_optimize): Shorten some variable names to fix formatting
problems.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* regclass.c (scan_one_insn): Likewise.
(record_reg_classes): Don't compute operand types, use recog_op_type.
* reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
recog_constraints instead.
From-SVN: r23529
* Makefile.in (sched.o): Depend on recog.h.
* alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
(unsigned) when comparing against one.
(find_base_value): Likewise.
(record_base_value): Cast variable `regno' to (unsigned) when
comparing against one. Cast the result of REGNO() macro to
(unsigned) when comparing against one.
(memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
unsigned.
(init_alias_analysis): Add unsigned variable `ui'. Use it as loop
variable where an unsigned index is needed.
* caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
before comparing against one.
* collect2.c: Add prototypes for functions `error', `fatal' and
`fatal_perror'. Make these functions take variable arguments
instead of faking it with a fixed number of args.
(write_c_file_stat): Cast the argument of ctype macro to (unsigned
char).
* combine.c (can_combine_p): Mark parameter `pred' with
ATTRIBUTE_UNUSED.
(find_split_point): Cast variable `src' to (unsigned
HOST_WIDE_INT) when comparing against one.
HOST_WIDE_INT) when comparing against one.
(simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
(simplify_logical): Likewise.
(force_to_mode): Cast result of INTVAL() macro to (unsigned
HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
HOST_WIDE_INT) in shift.
(simplify_and_const_int): Cast result of INTVAL() macro to
`unsigned HOST_WIDE_INT' when comparing against one.
(merge_outer_ops): Cast variable const0 to `unsigned
HOST_WIDE_INT' when comparing against the result of
GET_MODE_MASK() macro.
(simplify_comparison): Likewise for variable `c0'. Cast variable
`const_op' to `unsigned HOST_WIDE_INT' when comparing against
one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
comparing against one.
(distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
macro to `unsigned HOST_WIDE_INT' when comparing against one.
(output_block_move): Cast `sizeof' expression to (int) when
comparing against one.
(function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
against one.
(save_restore_insns): Cast `base_offset' to `long' to match format
specifier in fprintf.
* config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
to `enum machine_mode'.
* flow.c (life_analysis_1): Remove unused variable `insn'.
* gcc.c (translate_options): Move variables `j' and `k' into the
scope in which they are used. Change their types to `size_t'.
(set_spec): Cast the argument of ctype macro to `unsigned char'.
(read_specs): Likewise.
(process_command): Cast `sizeof' to (int) when comparing against one.
(do_spec_1): Cast the argument of ctype macro to `unsigned char'.
(handle_braces): Cast both sides of `==' expression to `long' to
ensure sign matching.
(main): Cast variable `i' to `int' when comparing against one.
* gcov-io.h (__fetch_long): Change type of parameter `bytes' from
int to size_t. Cast variable `i' to size_t when comparing against
one.
* genattrtab.c (convert_set_attr_alternative): Remove unused
parameter `insn_code'. All callers changed.
(convert_set_attr): Likewise.
* genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
size_t when comparing against one. Likewise for variable `len'.
* global.c (global_alloc): Cast variable `max_regno' to size_t
when comparing against one. Likewise for variable `max_allocno'.
* jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
* local-alloc.c (validate_equiv_mem_from_store): Mark parameter
`set' with ATTRIBUTE_UNUSED.
(find_free_reg): Cast `sizeof' expression to (int) when comparing
against one.
* loop.c (count_loop_regs_set): Remove unused variable `dest'.
(strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
(get_condition): Cast variable `const_val' to `unsigned
HOST_WIDE_INT' when comparing against one. Cast unsigned
expression to HOST_WIDE_INT when comparing against one.
(insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
(load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
`unsigned' when comparing against one.
* protoize.c (is_id_char): Change type of parameter `ch' to
unsigned char.
(munge_compile_params): Cast argument of ctype macro to (const
unsigned char).
(process_aux_info_file): Cast variable `aux_info_size' to int when
comparing against one.
(forward_to_next_token_char): Cast argument of ctype macro to
`const unsigned char'.
(edit_formals_lists): Likewise.
(find_rightmost_formals_list): Likewise.
(add_local_decl): Likewise.
(add_global_decls): Likewise.
(edit_fn_definition): Likewise.
(do_cleaning): Likewise.
(scan_for_missed_items): Likewise.
(edit_file): Cast variable `orig_size' to (int) when comparing
against one.
(main): Cast argument of ctype macro to `const unsigned char'.
* recog.c (const_int_operand): Mark parameter `mode' with
ATTRIBUTE_UNUSED.
* regclass.c (record_reg_classes): Change type of variable `c' to
`unsigned char'. Cast `char' array index to `unsigned char'.
* reload.c (push_secondary_reload): Cast argument to
REG_CLASS_FROM_LETTER() macro to `unsigned char'.
* reload1.c (calculate_needs): Cast `char' array index to
`unsigned char'.
(set_label_offsets): Change type of variable `i' to unsigned int.
Cast result of XVECLEN() macro to unsigned when comparing against
one.
(mark_not_eliminable): Change type of variable `i' to unsigned.
(order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
when comparing against one.
(reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
comparing against one.
(choose_reload_regs): Hide unused label `fail'.
(reload_cse_simplify_operands): Cast `char' array index to
`unsigned char'.
(reload_combine_note_store): Mark parameter `set' with
ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
against one.
(reload_cse_move2add): Remove unused variable `src2'.
* sched.c: Include recog.h.
(sched_note_set): Remove unused parameter `b'. All callers
changed.
(split_hard_reg_notes): Likewise for parameter `orig_insn'.
(blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
when comparing against one.
* stupid.c (stupid_find_reg): Mark parameter `changes_size' with
ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
comparing against one.
* unroll.c (precondition_loop_p): Remove unused parameter
`loop_end'. All callers changed.
From-SVN: r23079
* reload.h (compute_use_by_pseudos): Declare.
* reload1.c (spilled_pseudos, insns_need_reload): New variables.
(something_needs_reloads): Delete variable.
(finish_spills): New function.
(compute_use_by_pseudos): New function.
(delete_caller_save_insns): Lose argument FIRST. All callers changed.
Use the reload_insn_chain instead of walking the rtl directly.
(reload): Allocate and free spilled_pseudos.
Ensure that all calls of spill_hard_reg are followed by a call to
finish_spills.
Use the insns_need_reload list instead of something_needs_reloads
to find out if reload_as_needed must be called.
Clear unused_insn_chains at the end.
(calculate_needs_all_insns): Lose FIRST parameter. All callers
changed.
Delete code to keep track of current basic block.
Walk reload_insn_chain instead of the rtl structure. Build the
insns_need_reload chain.
Remember which insns need reloading/elimination by setting the
appropriate fields in struct insn_chain, not by putting modes on the
insn.
(calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
arg INSN. All callers changed.
Delete declaration of struct needs.
Don't set something_needs_reloads.
Record insn needs in the CHAIN argument.
(spill_hard_reg): Record the affected pseudos in spilled_pseudos.
(reload_as_needed): Lose FIRST arg. All callers changed.
Walk the reload_insn_chain instead of the rtx structure.
Delete code to keep track of current basic block.
Rename one of the NEXT variables to OLD_NEXT.
(allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
callers changed.
(choose_reload_regs): Likewise.
(emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
callers changed.
* caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
instead of (MOVE_MAX / UNITS_PER_WORD) computation.
(hard_regs_live, hard_regs_need_restore): Delete variables.
(n_regs_saved): Now static.
(referenced_regs, this_insn_sets): New variables.
(setup_save_areas): Restructure the code a bit.
(restore_referenced_regs): Delete function.
(mark_referenced_regs): New function, similar to the old
restore_referenced_regs, but mark registers in referenced_regs.
(clear_reg_live): Delete function.
(mark_set_regs): Renamed from set_reg_live. All callers changed.
Only mark registers in this_insn_sets.
(save_call_clobbered_regs): Rework this function to walk the
reload_insn_chain instead of using the list of instructions directly.
Delete code to keep track of register lives, compute live regs on the
fly from information in the chain.
Instead of calling restore_referenced_regs, use mark_referenced_regs,
then walk the set it computes and call insert_restore as appropriate.
(insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
callers changed.
Restructure the code a bit. Test hard_regs_saved instead of
hard_regs_need_restore.
(insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
args. All callers changed.
Restructure the code a bit. Use TO_SAVE to determine which regs to
save instead of more complicated test.
(insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
callers changed.
Create a new insn_chain structure for the new insn and place it
into the chain.
* rtl.texi: Update documentation to reflect that reload no longer
puts modes on the insns.
From-SVN: r23074
* caller-save.c (restore_referenced_regs): Lose mode argument.
(insert_save): Lose mode argument.
(insert_restore): Lose mode argument.
(insert_one_insn): Lose mode argument.
(save_call_clobbered_regs): Lose mode argument.
(setup_save_areas): Take no argument and return void. All callers
changed.
Don't verify validity of memory addresses.
* reload.h (setup_save_ares): Adjust prototype.
(save_call_clobbered_regs): Likewise.
* reload1.c (delete_caller_save_insns): New function.
(caller_save_spill_class): Delete variable.
(caller_save_group_size): Delete variable.
(reload): Call setup_save_areas and save_call_clobbered_regs
in the main loop, before calling calculate_needs_all_insns.
Don't call save_call_clobbered_regs after the loop.
Call delete_caller_save_insns at the end of an iteration if
something changed.
Delete code to manage caller_save_spill_class.
Emit the final note before setting reload_first_uid.
Simplify test that determines whether reload_as_needed gets run.
(calculate_needs): Delete code to manage caller_save_spill_class.
From-SVN: r22876
�
* caller-save.c (insert_save_restore): Break this function up
into new functions insert_restore, insert_save and insert_one_insn.
All callers changed.
(insert_restore): New function, mostly broken out of
insert_save_restore.
(insert_save): Likewise.
(insert_one_insn): Likewise.
(restore_referenced_regs): New argument BLOCK. All callers changed.
(save_call_clobbered_regs): Don't keep track of basic block boundaries
in this function, do it in insert_one_insn instead.
From-SVN: r22754
* alias.c: Include toplev.h
* caller-save.c: Include toplev.h
* combine.c: Include toplev.h
* flow.c Include toplev.h
* global.c: Include toplev.h
* jump.c: Include toplev.h
* local-alloc.c: Include toplev.h
* loop.c: Include toplev.h
* regmove.c: Include toplev.h
* stupid.c: Include toplev.h
* unroll.c: Include toplev.h
* Makefile.in: Add toplev.h dependencies.
From-SVN: r20623
* Makefile.in (c-lang.o): Depend on c-tree.h, c-lex.h and toplev.h.
(c-lex.o): Depend on output.h.
(c-common.o): Likewise.
(stmt.o): Likewise.
(calls.o): Likewise.
(integrate.o): Depend on toplev.h.
(regclass.o): Depend on output.h.
(final.o): Depend on reload.h.
* c-common.c: Include output.h.
(check_format_info): Remove unused variable `integral_format'.
* c-decl.c (print_lang_decl): Mark parameters `file', `node' and
`indent' with ATTRIBUTE_UNUSED.
(print_lang_type): Likewise.
(maybe_build_cleanup): Likewise for parameter `decl'.
(copy_lang_decl): Likewise for parameter `node'.
* c-lang.c: Include c-tree.h, c-lex.h and toplev.h.
(lang_print_xnode): Mark parameters `file', `node' and `indent'
with ATTRIBUTE_UNUSED.
(lookup_interface): Likewise for parameter `arg'.
(is_class_name): Likewise.
(maybe_objc_check_decl): Likewise for parameter `decl'.
(maybe_objc_comptypes): Likewise for parameters `lhs', `rhs' and
`reflexive'.
(maybe_objc_method_name): Likewise for parameter `decl'.
(build_objc_string): Likewise for parameters `len' and `str'.
* c-lex.c: Include output.h.
* c-lex.h (position_after_white_space): Correct typo in prototype.
* c-tree.h (finish_file, c_expand_start_cond, c_expand_start_else,
c_expand_end_cond, init_iterators): Add prototypes.
* caller-save.c (set_reg_live): Mark parameters `reg' and `setter'
with ATTRIBUTE_UNUSED.
* calls.c: Include output.h.
* cccp.c (pipe_closed): Mark parameter `signo' with
ATTRIBUTE_UNUSED.
* combine.c: Move inclusion of expr.h to after insn-config.h.
* iris6.h (ASM_IDENTIFY_GCC, ASM_IDENTIFY_LANGUAGE): Don't define
as empty, rather define as ((void)0).
* sparc.c (sparc_check_64): Add braces around ambiguous `else'.
Add parentheses around assignment used as truth value.
* cplus-dem.c (squangle_mop_up): Change return type to void.
(internal_cplus_demangle): Remove unused parameter `options'.
All callers changed.
(cplus_demangle_opname): Remove function wide variable `int i' and
replace with `size_t i' at each location where it is used.
(cplus_demangle_opname): change type of `i' from int to size_t.
* cppexp.c (right_shift): Mark parameter `pfile' with
ATTRIBUTE_UNUSED.
* cpphash.c (cpp_lookup): Likewise.
(cpp_hash_cleanup): Likewise.
* cpplib.c (parse_name): Add a prototype and make it static.
(null_underflow): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
(null_cleanup): Likewise for parameters `pbuf' and `pfile'.
(macro_cleanup): Likewise for parameter `pfile'.
(file_cleanup): Likewise.
* cpplib.h (cpp_reader_init, cpp_options_init, cpp_start_read,
cpp_read_check_assertion, skip_rest_of_line): Add prototypes.
* crtstuff.c (force_to_data, __CTOR_LIST__, force_to_data,
__DTOR_END__, __FRAME_END__): Mark with ATTRIBUTE_UNUSED.
* cse.c (cse_check_loop_start): Mark parameter `set' with
ATTRIBUTE_UNUSED.
* dbxout.c (flag_minimal_debug, have_used_extensions,
source_label_number): Move inside macro wrapper check against
defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO).
* dwarf2out.c (gen_entry_point_die): Hide prototype and definition.
* except.h (doing_eh): Provide prototype.
* expr.c: Move inclusion of expr.h to after insn-config.h.
* final.c: Include reload.h.
(shorten_branches): Cast the first argument of bzero to char *.
* fix-header.c (cpp_print_containing_files): Mark parameter
`pfile' with ATTRIBUTE_UNUSED.
(cpp_fatal): Likewise.
* flow.c (find_basic_blocks_1): Cast the first argument of bzero
to char *.
* genattrtab.c (make_length_attrs): Change the type of variable
`i' from int to size_t.
(zero_fn): Mark parameter `exp' with ATTRIBUTE_UNUSED.
(one_fn): Likewise.
* genextract.c (main): When generating insn-extract.c, mark
variable `junk' with ATTRIBUTE_UNUSED.
* gengenrtl.c (gencode): When generating genrtl.c, cast the first
argument of bzero to char*.
* integrate.c: Include toplev.h.
* libgcc2.c: Wrap `struct exception_table' and
`find_exception_handler' in macro DWARF2_UNWIND_INFO.
* objc/Make-lang.in (objc-act.o): Depend on toplev.h.
* objc/objc-act.c: Include toplev.h.
(lang_print_xnode): Mark parameters `file', `node' and `indent'
with ATTRIBUTE_UNUSED.
(finish_protocol): Likewise for parameter `protocol'.
* output.h (declare_weak): Add prototype.
(decode_reg_name): Don't wrap with TREE_CODE macro.
(assemble_alias): Add prototype.
* regclass.c: Include output.h.
* reload.h (reloads_conflict): Add prototype.
* rtl.h (print_rtl_single, mark_elimiation, reg_class_subset_p,
output_func_start_profiler): Add prototypes.
* rtlanal.c (reg_set_p_1): Mark parameters `x' and `pat' with
ATTRIBUTE_UNUSED.
* scan-decls.c: Include scan.h.
* scan.h (recognized_function, recognized_extern): Add prototypes.
* stmt.c: Include output.h.
* toplev.c (error_for_asm, warning_for_asm): Remove prototypes.
(output_lang_identify): Hide prototype and definition.
(float_signal): Mark parameter `signo' with ATTRIBUTE_UNUSED.
(pipe_closed): Likewise.
* toplev.h (count_error, strip_off_ending, error_for_asm,
warning_for_asm): Add prototypes.
From-SVN: r19712
* c-lex.c (yylex): Initialize traditional_type, ansi_type and type.
* caller-save.c (insert_save_restore): Initialize pat, code and
numregs.
* emit-rtl.c (push_to_sequence): Initialize top.
(push_topmost_sequence): Likewise.
* genattrtab.c (simplify_by_exploding): Initialize defval.
* profile.c (branch_prob): Initialize dest.
* rtl.h (note_stores): Remove duplicate prototype.
(GEN_INT): Re-instate cast of second arg to HOST_WIDE_INT.
Fix some warnings.
* cplus-dem.c (gnu_special): Don't get confused by .<digits>
strings that are not actually lengths.
A change from libiberty that didn't make it into the gcc copy.
From-SVN: r18942
* reload.h, reload1.c (eliminate_regs), caller-save.c, dbxout.c,
dwarfout.c, dwarf2out.c, reload.c, sdbout.c: Revert March 15 change.
* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
SUBREG_REG if the word count is unchanged.
* reload1.c (eliminate_regs) [case SET]: If W_R_O, preserve
subregs of identical word size for push_reload.
From-SVN: r17105
(restore_referenced_regs): New variable saveregs
which is number of regs to save at a time, instead of numregs,
which is total number of registers to save.
From-SVN: r4445
* caller-save.c (init_caller_save): If we were unable to
find a simple insn which meets all its constraints to save
and restore with a single insn in a mode, then set
regno_save_mode to VOIDmode to insure that this mode is never
used to caller-save the current register.
From-SVN: r2038
* caller-save.c (restore_referenced_regs): When restoring a
referenced hard register, use CEIL instead of truncating
divide to determine the maximum number of registers to
restore.
(insert_save_restore): Document maxrestore parameter.
(CEIL): Define.
From-SVN: r2003
Major rework to have caller-saves emit load/store double insns when
possible and to avoid useless resaving of registers restored for
source accesses only.
* caller-save.c (toplevel): All arrays are multi-dimensional to
hold information for multiple save/restore insns. New variable
hard_regs_need_restore.
(choose_hard_reg_mode): New argument `nregs' indicating how many
hard registers are desired. All callers changed.
(init_caller_save): Change initialization to handle multiple
register saves. A call-used register can not be live across
if we can not find a single register mode to save it in.
(multiple register saves are optional)
(init_save_areas): Change initialization of regno_save_mem to
handle multiple register saves.
(setup_save_areas): Allocate space for consecutive hard registers
in aligned consecutive memory locations. When allocating space
for consecutive hard registers, also initialize regno_save_mem
for each hard register stored as a single word.
(save_call_clobbered_regs): Initialize hard_regs_need_restore.
Set hard_regs_need_restore to hard_regs_saved after crossing
a call. Also recompute n_regs_saved. At the end of a basic block
we need only restore registers in hard_regs_need_restore.
(set_reg_live, clear_reg_live): Do the right thing for
hard_regs_need_restore and hard_regs_saved.
(restore_referenced_regs): Just return if X is a clobber.
Test hard_regs_need_restore to determine when to restore a hard
register from the save area.
(insert_save_restore): Now returns the number of extra registers
saved/restored. New argument `maxrestore' which constrains how
many hard registers should be restored. All callers changed.
Do stores of consecutive registers with double store insns if
possible. Else do them with single word insns. Likewise for
loads, except constrained by maxrestore. Set hard_regs_saved
and hard_regs_need_restore appropriately to minimize useless
saves into the save area. Test against hard_regs_need_restore
when trying to restore multiple regs and similarly test against
hard_regs_saved when storing multiple regs.
From-SVN: r1964
Kaveh R. Ghazi
Bernd Schmidt
J"orn Rennecke
Mark Mitchell
Jeff Law
Richard Henderson
Richard Henderson
Bernd Schmidt
Graham Stott
Jeffrey A Law
Michael Meissner
Richard Kenner
Mike Stump
Doug Evans
Richard Stallman
Jim Wilson
Charles Hannum