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From-SVN: r32172
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has created a new direct jump.
* toplev.c (rest_of_compilation): Rebuild jump labels if
combine_instructions has created a new direct jump.
* combine.c (try_combine): Add new_direct_jump_p argument. Set it
when appropriate.
(combine_instructions): Call try_combine with new argument.
Return non-null value when new direct jump instruction is created.
* rtl.h: combine_instructions returns an int.
From-SVN: r32162
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From-SVN: r31959
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conditionals.
* combine.c (make_extraction, force_to_mode): Avoid warning on
mixed-signedness conditionals.
(make_field_assignment, nonzero_bits): Likewise.
* expmed.c (store_fixed_bit_field): ALIGN arg now unsigned.
(store_split_bit_field, extract_split_bit_field): Likewise.
(extract_fixed_bit_field, store_bit_field,
* expr.c: Change alignment to be unsigned everywhere.
(move_by_pieces, store_constructor_field, store_constructor):
Alignment parm is unsigned.
(emit_block_move, emit_group_load, emit_group_store): Likewise.
(clear_storage, emit_push_insn, compare_from_rtx): Likewise.
(do_compare_rtx_and_jump): Likewise.
(move_by_pieces_ninsns, clear_by_pieces): Likewise.
Compare align with GET_MODE_ALIGNMENT.
(expand_expr_unaligned): Pointer to alignment is pointer to unsigned.
(get_inner_reference): Likewise.
(copy_blkmode_from_reg, emit_push_insn): Remove unneeded casts.
(expand_assignment): Local vars for alignment now unsigned.
(store_constructor, store_field, expand_expr, do_jump): Likewise.
(do_compare_and_jump): Likewise.
(store_field): Call new function expr_align.
* expr.h (emit_block_move, emit_group_load, emit_group_store):
Alignment arg now unsigned.
(clear_storage, emit_push_insn, compare_from_rtx): Likewise.
(do_compare_rtx_and_jump, store_bit_field): Likewise.
(extract_bit_field): Likewise.
* fold-const.c (add_double): Add cast to eliminate signedness warning.
* machmode.h (GET_MODE_ALIGNMENT): Result is unsigned.
(get_best_mode): Alignment arg is unsigned.
* rtl.h (move_by_pieces): Likewise.
* store-layout.c (maximum_field_alignment, set_alignment):
Now unsigned.
(layout_decl): Alignment arg is now unsigned.
Remove unneeded casts.
(layout_record, layout_union, layout_type): Remove unneeded casts.
Local alignment variables now unsigned.
(get_best_mode): Alignment arg now unsigned.
* tree.c (expr_align): New function.
* tree.h (expr_align): Likewise.
(maximum_field_alignment, set_alignment): Now unsigned.
(get_inner_reference): Alignment argument is now pointer to unsigned.
* varasm.c (assemble_variable): Add cast to eliminate warning.
From-SVN: r31904
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* Makefile.in (c-common.o): Depend on $(EXPR_H).
* c-common.c: Include expr.h.
* c-pragma.c (mark_align_stack): Add prototype.
* caller-save.c (add_stored_regs): Likewise.
* combine.c (record_promoted_value): Likewise.
* i386.c (ix86_sched_reorder_pentium, ix86_sched_reorder_ppro):
Likewise.
* cppinit.c (new_pending_define): Likewise.
* cpplib.c (skip_block_comment, skip_line_comment): Likewise.
* dwarf2out.c (save_rtx, splice_child_die, reverse_die_lists,
AT_class, AT_flag, AT_int, AT_unsigned, AT_string, AT_ref, AT_loc,
AT_addr, AT_lbl, get_AT_ref, free_AT, free_die, local_scope_p,
class_scope_p): Likewise.
* dwarf2out.h (dwarf2out_set_demangle_name_func,
dwarf2out_add_library_unit_info): Likewise.
* ggc.h (ggc_page_print_statistics): Likewise.
* haifa-sched.c (propagate_deps): Likewise.
* reg-stack.c (next_flags_user, record_label_references): Likewise.
* rtl.h (set_stack_check_libfunc): Likewise.
* toplev.h (set_fatal_function): Likewise.
* toplev.c (set_fatal_function): Delete prototype.
* diagnostic.c: Deconstify functions returning malloc'ed ptrs.
From-SVN: r31810
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(combining with splitting) in...
* combine.c (try_combine) [HAVE_cc0]: Trying to check the missed
case 3->2 combining (combining with splitting) in which 2 is CC0
setter/user and 3 is user. The rest of cases 2->1 and 3->2 are
checked at the begining of the function with the aid of calling
function 'can_combine_p'.
From-SVN: r31727
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* rtl.def: Add unordered fp comparisions.
* tree.def: Likewise.
* tree.h: Add ISO C 9x unordered fp comparision builtins.
* builtins.c (expand_tree_builtin): New function.
* c-typeck.c (build_function_call): Use it.
(build_binary_op): Support unordered compares.
* c-common.c (c_common_nodes_and_builtins): Add unordered compares.
* combine.c (known_cond): Handle reverse_condition returning UNKNOWN.
(reversible_comparison_p): Allow UNORDERED/ORDERED to be reversed.
* cse.c (fold_rtx): Check FLOAT_MODE_P before reversing.
(record_jump_equiv): Handle reverse_condition returning UNKNOWN.
* jump.c (reverse_condition): Don't abort for UNLE etc, but
return UNKNOWN.
(swap_condition): Handle unordered compares.
(thread_jumps): Check can_reverse before reversing.
* loop.c (get_condition): Likewise. Allow UNORERED/ORDERED to be
reversed for FP.
* optabs.c (can_compare_p): New argument CODE. Verify branch or
setcc is present before acking for cmp_optab. Update all callers.
(prepare_float_lib_cmp, init_optabs): Handle UNORDERED.
* expmed.c (do_cmp_and_jump): Update for can_compare_p.
* expr.c (expand_expr): Likewise. Support unordered compares.
(do_jump, do_store_flag): Likewise.
* expr.h (enum libfunc_index): Add unordered compares.
* Makefile.in (FPBIT_FUNCS): Add _unord_sf.
(DPBIT_FUNCS): Add _unord_df.
* config/fp-bit.c (_unord_f2): New.
* fp-test.c (main): Try unordered compare builtins.
* alpha-protos.h (alpha_fp_comparison_operator): Declare.
* alpha.c (alpha_comparison_operator): Check mode properly.
(alpha_swapped_comparison_operator): Likewise.
(signed_comparison_operator): Likewise.
(alpha_fp_comparison_operator): New.
(alpha_emit_conditional_branch): Handle unordered compares.
* alpha.h (PREDICATE_CODES): Update.
* alpha.md (fp compares): Use alpha_fp_comparison_operator.
(bunordered, bordered): New.
* cp/call.c (build_over_call): Use expand_tree_builtin.
* cp/typeck.c (build_function_call_real): Likewise.
(build_binary_op_nodefault): Handle unordered compares.
* gcc.c-torture/execute/ieee/fp-cmp-4.c: New.
From-SVN: r31591
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* combine.c (combine_simplify_rtx): Give FLOAT_STORE_FLAG_VALUE a mode.
* cse.c (find_comparison_args, fold_rtx): Likewise.
* integrate.c (subst_constants): Likewise.
* loop.c (get_condition): Likewise.
* tm.texi (FLOAT_STORE_FLAG_VALUE): Update docs.
* alpha.h (FLOAT_STORE_FLAG_VALUE): Use REAL_VALUE_ATOF.
From-SVN: r31479
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* cccp.c: PROTO -> PARAMS.
* cexp.y: Likewise.
* collect2.c: Likewise.
* combine.c: Likewise.
* convert.h: Likewise.
* cse.c: Likewise.
* dbxout.c: Likewise.
* dbxout.h: Likewise.
* diagnostic.c: Likewise.
* doprint.c: Likewise.
* dwarf2out.c: Likewise.
* dwarf2out.h: Likewise.
* dwarfout.c: Likewise.
* dwarfout.h: Likewise.
* dyn-string.h: Likewise.
From-SVN: r31399
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expressions are passed to operand_subword.
* combine.c (if_then_else_cond): Be careful about what kinds
of RTL expressions are passed to operand_subword.
From-SVN: r31383
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nonzero_bits.
* combine.c (expand_field_assignment): Do not discard SUBREGs
while computing nonzero_bits.
From-SVN: r31304
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From-SVN: r31194
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SIGN_EXTEND, convert SIGN_EXTEND to ZERO_EXTEND.
* combine.c (expand_compound_operation): Do not convert ZERO_EXTEND to
SIGN_EXTEND, convert SIGN_EXTEND to ZERO_EXTEND.
(make_compound_operation): Choose cheaper alternative between
ZERO_EXTEND and SIGN_EXTEND when sign bit is not set.
From-SVN: r31180
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* combine.c (simplify_comparison): Reduce (OP (MINUS A B) 0)
to (OP A B).
From-SVN: r30970
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From-SVN: r30910
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-> (lt foo (const_int 0)) simplification.
* combine.c (combine_simplify_rtx): Fix order of checks for
(ashiftrt foo C) -> (lt foo (const_int 0)) simplification.
From-SVN: r30894
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* combine.c (record_promoted_value): Remove unused variable
`links2'.
* emit-rtl.c (renumber_insns): Likewise for `old_max_uid'.
* global.c (record_conflicts): Likewise for `j'.
* genoutput.c (output_insn_data): Don't unnecessarily cast away
const-ness.
From-SVN: r30870
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* combine.c (try_combine, distribute_notes): Remove REG_N_REFS
updating code.
From-SVN: r30842
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PROMOTE_FUNCTION_RETURN.
* combine.c (check_promoted_subreg): Do not conditionalize this upon
PROMOTE_FUNCTION_RETURN.
From-SVN: r30814
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* combine.c (force_to_mode, case LSHIFTRT): New local inner_mask. Set
inner_mask instead of mask.
From-SVN: r30812
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* combine.c (check_promoted_subreg, record_promoted_value): New
functions.
(combine_instructions): Use them to retain nonzero and sign bit
information after SUBREGs are eliminated by optimizations in
this pass if PROMOTE_FUNCTION_RETURN.
From-SVN: r30808
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case...
* combine.c (try_combine): Before fixing up LOG_LINKS for the
i3_subst_into_i2 case, check that GET_CODE (PATTERN (i2)) == PARALLEL.
From-SVN: r30762
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return values in EQ/NE comparison...
* combine.c (if_then_else_cond): Use const_true_rtx instead of
const1_rtx for return values in EQ/NE comparison against (const_int 0)
case.
From-SVN: r30749
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* combine.c (try_combine): Only pass SET or CLOBBER to SET_DEST
* rs6000.md: Only access a CONST_INT with INTVAL
From-SVN: r30729
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FUNCTION_ARG_REGNO_P which it expects.
* combine.c (setup_incoming_promotions): Pass an outgoing
regno to FUNCTION_ARG_REGNO_P which it expects.
From-SVN: r30685
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to a constant with a...
* combine.c (try_combine): Add code to try to merge a set of a
two-word pseudo to a constant with a setting of one of those words
to a constant.
From-SVN: r30674
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into account.
* combine.c (combine_simplify_rtx): When handling a SUBREG,
take SUBREG_WORD into account.
(if_then_else_cond): Likewise.
From-SVN: r30623
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* bitmap.h (BITMAP_XFREE): New.
* flow.c (life_analysis): Use it.
(life_analysis_1): Free blocks.
* combine.c (undo_commit): New.
(try_combine): Use it. Don't zap undobuf.undos.
(combine_instructions): Don't zap undobuf.undos; free the
undobuf.frees list.
* local-alloc.c (local_alloc): Free qty_phys_num_sugg.
* stmt.c (cost_table_): New.
(estimate_case_costs): Use it instead of xmalloc.
* toplev.c (compile_file): Reuse dumpname memory instead
of strdup'ing it.
From-SVN: r30404
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From-SVN: r30331
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Fri Oct 29 15:25:07 1999 Arnaud Charlet <charlet@ACT-Europe.FR>
* gcov.c (DIR_SEPARATOR): Provide default.
(output_data): Add test for MS-DOS format absolute filename.
(fancy_abort): Correct program name.
(open_files): Open all files in binary mode.
* libgcc2.c (__bb_exit_func): Likewise.
* profile.c (init_branch_prob): Specify binary when opening files.
* flags.h (flag_unwind_tables): New decl.
* toplev.c (flag_unwind_table): New definition.
(f_options): Add -funwind-tables.
(decode_g_option): Clarify warning when unknown -g option is given.
(rest_of_compilation): If inside an inlined external function,
pretend we are just being declared.
* dwarf2out.c (dwarf2out_do_frame): Check -funwind_tables.
(dwarf2out_frame_finish): Likewise.
Fri Oct 29 06:32:44 1999 Geoffrey Keating <geoffk@cygnus.com>
* flow.c (propagate_block): When the last reference to a label
before an ADDR_VEC is deleted because the reference is a dead
store, delete the ADDR_VEC.
Fri Oct 29 07:44:26 1999 Vasco Pedro <vp@di.fct.unl.pt>
* fold-const.c (merge_ranges): In not in0, but in1, handle
upper bounds equal like subset case.
Thu Oct 28 19:22:24 1999 Douglas Rupp <rupp@gnat.com>
* dbxout.c (dbxout_parms): Generate a second stabs line for parameters
passed in a register but moved to the stack.
Thu Oct 28 19:12:57 1999 Sam Tardieu <tardieu@act-europe.fr>
* gcc.c (pass_exit_codes, greatest_status): New variables.
(struct option_map): Add entry for "--pass-exit-codes".
(execute): Update greatest_status if error.
(display_help): Add documentation for -pass-exit-codes.
(process_command): Handle -pass-exit-codes.
(main): Look at pass_exit_codes and greatest_status on call to exit.
Thu Oct 28 18:06:50 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (find_reloads): Refine test for no input reload
case to not includes reloads emitted after insn.
* function.c (find_temp_slots_from_address): Handle sum involving
a register that points to a temp slot.
(update_temp_slot_address): Make recursive call if both old and
new are PLUS with a common operand.
* calls.c (expand_call): Mark temp slot for result as having
address taken.
* rtlanal.c (reg_referenced_p, case IF_THEN_ELSE): New case.
* gcc.c (process_command): Add standard_exec_prefix with "GCC"
component as well as "BINUTILS".
* integrate.h (copy_rtx_and_substitute): New arg, FOR_LHS.
* integrate.c (copy_rtx_and_substitute): Likewise.
(expand_inline_function, integrate_parm_decls, integrate_decl_tree):
All callers changed.
* unroll.c (inital_reg_note_copy, copy_loop_body): Likewise.
* dbxout.c (dbxout_type, case INTEGER_TYPE_NODE): If can use
gdb extensions, write size of type; also be more consistent
in using references when this is a subtype.
* pa.md (extv, extzv, insv): Use define_expand to reject constant
that is out of range.
* loop.c (unknown_constant_address_altered): New variable.
(prescan_loop): Initialize it.
(note_addr_stored): Set it for RTX_UNCHANGING_P MEM.
(invariant_p, case MEM): Remove handling for volatile and readony;
check new variable if readonly.
(check_dbra_loop): Chdeck unknown_constant_address_altered.
* cse.c (canon_hash, case MEM): Do not record if BLKmode.
(addr_affects_sp_p): Removed from note_mem_written and only
define #ifdef AUTO_INC_DEC.
* alpha.c (input_operand, case ADDRESSOF): Treat as REG.
* regclass.c (record_reg_classes): Properly handle register move
directions.
* varasm.c (initializer_constant_valid_p, case MINUS_EXPR):
Don't think valid if both operands are invalid.
(struct constant_descriptor): New field RTL.
(mark_const_hash_entry): Mark it.
(record_constant{,_rtx}): Initialize it.
(output_constant_def): Allocate RTL in permanent obstack and
save in table.
({record,compare}_constant_1): Modes must match for
CONSTRUCTOR of ARRAY_TYPE.
* c-common.h (initializer_constant_valid_p): Delete decl from here.
* output.h (initializer_constant_valid_p): Move decl to here.
* c-common.c (initializer_constant_valid_p): Delete function from here.
* varasm.c (initializer_constant_valid_p): Move function to here.
* tree.h (STRIP_SIGN_NOPS): New macro.
* fold-const.c (optimize_minmax_comparison): New function.
(invert_truthvalue, case WITH_RECORD_EXPR): New case.
(fold): Use STRIP_SIGN_NOPS instead of STRIP_TYPE_NOPS.
(fold, case EQ_EXPR): Call optimize_minmax_comparison and add
cases with ABS_EXPR, NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR, and
widening conversions.
(fold, case LE_EXPR): Rework changing unsigned to signed comparisons
to look at size of mode, not precision of type; also add missing cases.
(optimize_bit_field_compare, decode_field_reference): Don't try to
optimize COMPONENT_REF of a PLACEHOLDER_EXPR.
* dwarf2out.c (ctype.h): Include.
(dwarf2out_set_demangle_name_func): New function.
(size_of_line_info): Deleted.
(output_line_info): Compute size of line info table from difference
of labels.
(base_type_die, add_name_attribute): Call demangle function, if any.
(field_byte_offset): Use bits per word for variable length fields.
(gen_array_type_die): Add array name.
(gen_subprogram_die): Ignore DECL_INLINE if -fno-inline.
(dwarf2out_add_library_unit_info): New function.
* explow.c (set_stack_check_libfunc): New function.
(stack_check_libfunc): New static variable.
(probe_stack_range): Allow front-end to set up a libfunc to call.
* combine.c (simplify_comparison): When making comparison in wider
mode, check for having commuted an AND and a SUBREG.
(contains_muldiv): New function.
(try_combine): Call it when dividing a PARALLEL.
(simplify_rtx, case TRUNCATE): Don't remove for umulsi3_highpart.
(simplify_comparison, case ASHIFTRT): Recognize sign-extension of
a PLUS.
(record_value_for_reg): If TEM is a binary operation with two CLOBBERs,
use one of the CLOBBERs instead.
(if_then_else_cond): If comparing against zero, just return thing
being compared.
* optabs.c (expand_abs): If machine has MAX, ABS (x) is MAX (x, -x).
Don't generate shifts and subtract if have conditional arithmetic.
* rtl.h (delete_barrier): New declaration.
* jump.c (jump_optimize): Set up to handle conditional call.
In conditional arithmetic case, handle CALL_INSN followed by a BARRIER.
(delete_barrier): New function.
* rtl.c (read_rtx): Call fatal if bad RTL code; check for bad mode.
* recog.c (nonmemory_operand): Accept ADDRESSOF.
* tree.c (build_type_attribute_variant): Push to obstack of
ttype around type_hash_canon call.
* expr.c (placeholder_list): Move decl to file scope.
(expand_expr): Don't force access to volatile just because its
address is taken.
If ignoring reference operations, just expand the operands.
(expand_expr, case COMPONENT_REF): Propagate
EXPAND_CONST_ADDRESS to recursive call when expanding inner.
Refine test for using bitfield operations vs pointer punning.
(expand_expr, case CONVERT_EXPR): If converting to
BLKmode UNION_TYPE from BLKmode, just return inner object.
Use proper mode in store_field call.
Properly set sizes of object to store and total size in store_field
call for convert to union.
(expand_expr, case ARRAY_REF): If OP0 is in a register, put it in
memory (like for ADDR_EXPR). Also, don't put constant in register if
we'll want it in memory.
(readonly_fields_p): New function.
(expand_expr, case INDIRECT_REF): Call it if LHS.
(expand_assignment): Handle a RESULT_DECL where
DECL_RTL is a PARALLEL.
(do_jump, case WITH_RECORD_EXPR): New case.
(get_inner_reference): Always go inside a CONVERT_EXPR
and NOP_EXPR if both modes are the same.
(store_field): Use bitfield operations if size of bitsize is not same
as size of RHS's type.
Check for bitpos not a multiple of alignment in BLKmode case.
Do block move in largest possible alignment.
(store_constructor): Set BITSIZE to -1 for variable size and properly
in case of array of BLKmode.
(expand_expr_unaligned): New function.
(do_compare_and_jump): Call it.
* mips/iris5.h (SWITCHES_NEED_SPACES): New macro.
* collect2.c (main): Only allow -ofoo if SWITCHES_NEED_SPACES
does not include 'o'.
* function.c (instantiate_virtual_regs_1, case SET): Handle case where
both SET_DEST and SET_SRC reference a virtual register.
(gen_mem_addressof): Copy RTX_UNCHANGING_P from new REG to old REG.
* integrate.c (expand_inline_function): Handle case of setting
virtual stack vars register (from built in setjmp); when parameter
lives in memory, expand virtual_{stack_vars,incoming_args}_rtx early.
(subst_constant): Add new parm, MEMONLY.
(expand_inline_function, integrate_parm_decls): Pass new parm.
(integrate_decl_tree): Likewise.
(copy_rtx_and_substitute, case MEM): Do copy RTX_UNCHANGING_P.
(try_constants): Call subst_constants twice, with MEMONLY 0 and 1.
(copy_rtx_and_substitute, case SET): Add explicit calls to
copy_rtx_and_substitute for both sides.
* stmt.c (expand_asm_operands): Don't use TREE_STRING_LENGTH for
constraints.
(pushcase{,_range}): Convert to NOMINAL_TYPE after checking for
within INDEX_TYPE, instead of before.
(fixup_gotos): Use f->target_rtl, not the next insn,
since latter may be from a later fixup.
(expand_value_return): Correctly convert VAL when promoting function
return; support RETURN_REG being a PARALLEL.
(expand_return): When checking for result in regs and having
cleanup, consider PARALLEL in DECL_RTL as being in regs.
From-SVN: r30299
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* combine.c (combine_simplify_rtx): Renamed from simplify_rtx. All
references/callers changed.
From-SVN: r30292
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* rtl.h (note_stores): Add additional paramter.
* rtlanal.c (reg_set_p_1): Take additional paramter.
(reg_set_last_1): Likewise.
(reg_set_p): Adjust call to note_stores.
(reg_set_last): Likewise.
(note_stores): Pass data parameter to worker function.
* alias.c (record_set): Take additional parameter.
(init_alias_analysis): Pass it.
* caller-save.c (mark_set_regs): Take additional parameter.
(save_call_clobbered_regs): Pass NULL to note_stores.
* combine.c (set_nonzero_bits_and_sign_copies): Take additional
parameter.
(record_dead_and_set_regs_1): Likewise.
(reg_dead_at_p_1): Likewise.
(combine_instructions): Adjust calls to note_stores.
(try_combine): Likewise.
(record_dead_insn): Remove.
(record_dead_and_set_regs): Adjust calls to note_stores.
(reg_dead_at_p): Likewise.
* cse.c (invalidate_skipped_set): Take additional parameter.
(cse_check_loop_start): Likewise.
(cse_check_loop_start_value): Remove.
(cse_set_around_loop): Adjust calls to note_stores.
* flow.c (notice_stack_pointer_modification): Take additional
parameter. Remove duplicate declaration.
(record_volatile_insns): Adjust calls to note_stores.
* gcse.c (record_set_info): Take additional parameter.
(record_last_set_info): Likewise.
(invalidate_nonnull_info): Likewise.
(record_set_insn): Remove.
(compute_sets): Adjust calls to note_stores.
(last_set_insn): Remove.
(compute_hash_table): Adjust calls to note_stores.
(insert_insn_end_bb): Likewise.
(delete_null_pointer_checks): Likewise.
* global.c (mark_reg_store): Take additional parameter.
(mark_reg_clobber): Likewise.
(reg_becomes_live): Likewise.
(global_conflicts): Adjust calls to note_stores.
(build_insn_chain): Likewise.
* integrate.c (note_modified_parmregs): Take additional parameter.
(mark_stores): Likewise. Make it static.
(save_for_inline_nocopy): Adjust calls to note_stores.
(try_constants): Likewise.
* integrate.h (mark_stores): Remove declaration.
* jump.c (mark_modified_reg): Take additional parameter.
(thread_jumps): Adjust calls to note_stores.
* local-alloc.c (validate_equiv_mem_from_store): Take additional
parameter.
(no_equiv): Likewise.
(reg_is_set): Likewise.
(validate_equiv_mem): Adjust calls to note_stores.
(update_equiv_regs): Likewise.
(block_alloc): Likewise.
* loop.c (note_set_pseudo_multiple_uses_retval): Remove.
(note_addr_stored): Take additional parameter.
(note_set_pseudo_multiple_uses): Likewise.
(record_initial): Likewise.
(prescan_loop): Adjust calls to note_stores.
(strength_reduce): Likewise.
(check_dbra_loop): Likewise.
* regmove.c (flags_set_1): Take additional paramter.
(mark_flags_life_zones): Adjust calls to note_stores.
* reload1.c (mark_not_eliminable): Take additional parameter.
(forget_old_reloads_1): Likewise.
(reload_cse_invalidate_rtx): Likewise.
(reload_cse_check_clobber): Likewise.
(reload_combine_note_store): Likewise.
(move2add_note_store): Likewise.
(reload): Adjust calls to note_stores.
(reload_as_needed): Likewise.
(emit_reload_insns): Likewise.
(reload_cse_regs_1): Likewise.
(reload_cse_record_set): Adjust calls to reload_cse_invalidate_rtx.
(reload_combine): Adjust calls to note_stores.
* resource.c (update_live_status): Take additional paramter.
(mark_target_live_regs): Adjust calls to note_stores.
* stupid.c (find_clobbered_regs): Take additional parameter.
(stupid_life_analysis): Adjust calls to note_stores.
From-SVN: r30221
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* basic-block.h (PROP_*): Move constants from ...
* flow.c: ... here.
(compute_bb_for_insn): Free the array before reallocating.
(update_life_info): New arg PROP_FLAGS; pass on to propagate_block.
(allocate_reg_life_data): Reset all reg variables collected by
propagate_block.
(get_block_head_tail): Don't convert from bb to block.
(get_bb_head_tail): New. Update all callers of get_block_head_tail.
(find_insn_reg_weight): Take block not bb.
(schedule_block): Don't set block num for moved insns.
(schedule_region): Don't update_life_info or find_insn_reg_weight.
(schedule_insns): Do it here instead.
* combine.c (combine_instructions): Invoke compute_bb_for_insn
before update_life_info.
* recog.c (split_all_insns, peephole2_optimize): Update for
new arg to update_life_info.
* rtlanal.c (remove_note): Cope with NULL note.
* toplev.c (rest_of_compilation): Don't invoke recompute_reg_usage
if we did sched1.
From-SVN: r30103
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subst_low_cuid...
* combine.c (get_last_value): If the last set of a register
is after subst_low_cuid, then we can not use it to determine
the register's last value.
From-SVN: r30062
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to assocate code.
* fold-const.c (fold): Move bit_rotate code to the EXPR_PLUS case,
falltrought to assocate code.
Convert XOR to OR in code like (a&c1)^(a&c2) where c1 and c2 don't have
bits in common.
* combine.c (simplify_logical): Convert XOR to IOR if operands have
no bits in common; remove XOR to ROTATE conversion.
From-SVN: r29998
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* combine.c (simplify_logical): Recognize xor pattern that encodes
rotation.
From-SVN: r29965
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* combine.c (refresh_blocks, need_refresh): New.
(combine_instructions): Allocate refresh_blocks. Invoke
update_life_info if needed.
(distribute_notes): Mark refresh_blocks instead of installing
USE insns.
* flow.c (update_life_info): Remove notes if GLOBAL_RM_NOTES.
* basic_block.h (enum update_life_extent): Add GLOBAL_RM_NOTES.
* Makefile.in (recog.o): Depend on basic-block.h.
From-SVN: r29893
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* Makefile.in (flow.o): Depend on TREE_H.
* basic-block.h (REG_SET_EQUAL_P): New.
(XOR_REG_SET): New.
(n_edges): Declare.
(free_regset_vector): Remove declaration.
(flow_delete_insn_chain): Declare.
(enum update_life_extent): New.
(update_life_info, count_or_remove_death_notes): Declare.
* combine.c (distribute_notes) [REG_DEAD]: Stop search at bb->head.
Verify register live at bb->global_live_at_start before adding USE.
* flow.c (HAVE_epilogue, HAVE_prologue): Provide default.
(CLEAN_ALLOCA): New.
(n_edges): New.
(PROP_*): New flags.
(find_basic_blocks_1): Use alloc_EXPR_LIST.
(clear_edges): Zero n_edges.
(make_edge): Increment n_edges.
(split_edge): Don't allocate bb->local_set. Increment n_edges.
(flow_delete_insn_chain): Export.
(delete_block): Decrement n_edges.
(merge_blocks_nomove): Likewise.
(life_analysis): Give life_analysis_1 PROP flags.
(verify_wide_reg_1, verify_wide_reg): New.
(verify_local_live_at_start): New.
(update_life_info): Rewrite to call into propogate_block.
(mark_reg): New.
(mark_regs_live_at_end): After reload, if epilogue as rtl,
always mark stack pointer. Conditionally mark PIC register.
After reload, mark call-saved registers, return regsiters.
(life_analysis_1): Accept PROP flags not remove_dead_code.
Call mark_regs_live_at_end before zeroing regs_ever_live.
Use calculate_global_regs_live. Copy global_live_at_end before
calling final propagate_block. Zero reg_next_use on exit.
(calculate_global_regs_live): New.
(allocate_bb_life_data): Don't allocate bb->local_set.
(init_regset_vector, free_regset_vector): Remove.
(propagate_block): Accept FLAGS not FINAL or REMOVE_DEAD_CODE.
Test flags before every operation. Warn if prologue/epilogue insn
would have been deleted.
(mark_set_regs, mark_set_1): Accept and use FLAGS.
Use alloc_EXPR_LIST.
(mark_used_regs): Accept and use FLAGS, not FINAL.
Remove special handling for RETURN.
(try_pre_increment): Use alloc_EXPR_LIST.
(dump_flow_info): Dump n_edges.
(unlink_insn_chain, split_hard_reg_notes): Remove.
(maybe_add_dead_note, maybe_add_dead_note_use): Remove.
(find_insn_with_note, new_insn_dead_notes): Remove.
(update_n_sets, sets_reg_or_subreg_1, sets_reg_or_subreg): Remove.
(maybe_remove_dead_notes, prepend_reg_notes): Remove.
(replace_insns): Remove.
(count_or_remove_death_notes): New.
(verify_flow_info): Abort on error after all checks.
(remove_edge): Decrement n_edges.
(remove_fake_edges): Tweek format.
* haifa-sched.c (schedule_insns): Use split_all_insns.
* output.h (update_life_info): Remove declaration.
* recog.c (split_all_insns): From the corpse of split_block_insns,
do the whole function block by block. Use update_life_info.
(recog_last_allowed_insn): New.
(recog_next_insn): Mind it.
(peephole2_optimize): Set it. Walk backwards through blocks.
Use update_life_info.
* rtl.h (update_flow_info, replace_insns): Remove declarations.
(split_all_insns): Declare.
* toplev.c (rest_of_compilation): Thread prologue before flow2.
Use split_all_insns.
* i386.md (or -1 peep2s): Disable.
From-SVN: r29877
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* combine.c (gen_rtx_combine): Add missing call to va_end().
* final.c (asm_fprintf): Likewise.
* genattrtab.c (attr_rtx): Likewise.
cp:
* lex.c (compiler_error): Add missing call to va_end().
From-SVN: r29667
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From-SVN: r29655
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From-SVN: r29621
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use this)
From-SVN: r29515
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From-SVN: r29358
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* combine.c (SUBST): Break out to a real function do_SUBST.
(SUBST_INT): Likewise.
* gcse.c (free_pre_mem): Free `temp_bitmap'.
(pre_insert): Free `inserted'.
* loop.c (basic_induction_var): Always set `location'.
* function.c (expand_function_end): Add initial_trampoline as a root.
* rtl.h (init_varasm_once): Declare.
* toplev.c (compile_file): Call it.
* ggc-simple.c (ggc_mark_string_ptr): New.
(ggc_add_string_root): New.
(ggc_collect): Disable collection avoidance temporarily.
* ggc.h (ggc_add_string_root): Declare.
* except.c (create_rethrow_ref): Use ggc_alloc_string.
* optabs.c (init_libfuncs): Likewise.
* varasm.c (named_section): Use ggc_alloc_string.
(make_function_rtl): Likewise.
(make_decl_rtl): Likewise.
(assemble_static_space): Likewise.
(assemble_trampoline_template): Likewise.
(output_constant_def): Likewise.
(force_const_mem): Likewise.
(mark_const_hash_entry): New.
(mark_pool_sym_hash_table): New.
(mark_varasm_state): Use it.
(init_varasm_once): New.
* expr.h (init_one_libfunc): Declare.
* optabs.c (init_one_libfunc): New.
(init_optabs): Use it.
* config/gofast.h: Likewise.
* config/sparc/sol2.h (INIT_SUBTARGET_OPTABS): Likewise.
* config/sparc/sparc.h (INIT_TARGET_OPTABS): Likewise.
From-SVN: r29226
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From-SVN: r29150
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extension.
* combine.c (simplify_rtx): Recognize another case of a synthesized
sign extension.
From-SVN: r29055
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* combine.c (simplify_shift_const): Remove extra semicolon.
* dwarf2out.c (remove_AT): Likewise.
* expmed.c (expand_mult): Likewise.
* gcov.c (create_program_flow_graph): Likewise.
* reorg.c (mostly_true_jump): Likewise.
From-SVN: r29050
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From-SVN: r28928
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function only if...
* combine.c (nonzero_bits) : Allow single-ly set registers to be
anywere in the function only if they are pseudos and set before
being used (not live at the start of the function).
(num_sign_bit_copies) : Same.
(get_last_value_validate) : Same.
(get_last_value) : Same.
From-SVN: r28871
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* calls.c (emit_call_1): Mark parameter `stack_size' with
ATTRIBUTE_UNUSED.
(expand_call): Initialize variable `insn'.
(emit_library_call): Likewise for variable `high_to_save'.
(emit_library_call_value): Likewise.
(store_one_arg): Likewise for variables `lower_bound' and
`upper_bound'.
* combine.c (try_combine): Likewise for variables `i2_code_number'
and `other_code_number'.
(find_split_point): Likewise for variables `pos', `unsignedp' and
`inner'.
(simplify_if_then_else): Likewise for variables `op' and `c1'.
(simplify_and_const_int): Remove unused variable `width'.
(merge_outer_ops): Likewise.
* cse.c (simplify_binary_operation): Cast an INTVAL() to `unsigned
HOST_WIDE_INT' when comparing against one.
(simplify_relational_operation): Likewise.
(cse_insn): Initialize variables `src_eqv_volatile',
`src_eqv_in_memory', `src_eqv_in_struct', `src_eqv_hash' and `sets'.
* final.c (init_final): Constify parameter `filename'.
(final_start_function): Mark parameter `optimize' with
ATTRIBUTE_UNUSED.
(profile_function): Likewise for parameters `first' and `optimize'.
(output_source_line): Likewise for parameter `file'.
* integrate.c (subst_constants): Cast a value to `size_t' when
comparing against one.
(mark_stores): Initialize variable `mode'. Cast a value to
`size_t' when comparing against one.
* integrate.h (MAYBE_EXTEND_CONST_EQUIV_VARRAY): Likewise.
* loop.c (move_movables): Initialize variable `first'.
(strength_reduce): Likewise for variable `increment'.
(check_dbra_loop): Likewise for variable `comparison_val'. Cast a
value to `size_t' when comparing against one.
(load_mems): Initialize variable `end_label'.
* output.h (init_final): Constify parameter.
* reload.c (decompose): Initialize variable `base'.
* reload1.c (reload): Likewise for variable `is_scalar'.
(spill_hard_reg): Mark parameter `dumpfile' with ATTRIBUTE_UNUSED.
(choose_reload_regs): Initialize variable `mode'.
(emit_reload_insns): Likewise for variable `store_insn'.
(reload_cse_noop_set_p): Mark parameter `insn' with
ATTRIBUTE_UNUSED.
(reload_combine): Initialize variable `set'.
* unroll.c (unroll_loop): Likewise for variable `local_label'.
(copy_loop_body): Cast a value to `size_t' when comparing against
one.
* varasm.c (assemble_variable): Initialize variable `size_tree'.
(const_hash): Add an `else abort()' in an if-else-if-else sequence.
(remove_from_pending_weak_list): Mark parameter `name' with
ATTRIBUTE_UNUSED.
From-SVN: r28860
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