* flags.h (flag_bounds_check, flag_bounded_pointers): New extern decls.
* toplev.c (flag_bounds_check, flag_bounded_pointers): New flags.
(f_options): Add "bounded-pointers" and "bounds-check" entries.
* c-lang.c (lang_init_options): Set flag_bounds_check as "unspecified".
(lang_init): Set default for flag_bounds_check if still "unspecified".

From-SVN: r30035

* flags.h: New variables align_loops, align_loops_log,
align_jumps, align_jumps_log, align_labels, align_labels_log,
align_functions, align_functions_log.
* toplev.c: Define them.
(f_options): Handle -falign-* when they have no argument.
(main): Add logic to set variables for -falign-functions,
-falign-jumps, -falign-labels, -falign-loops.
Make it -fsched-verbose=<n> and -finline-limit=<n>.
(display_help): Change help to match options.
* final.c (LABEL_ALIGN): Default to align_labels_log.
(LABEL_ALIGN_MAX_SKIP): Default to align_labels-1.
(LOOP_ALIGN): Default to align_loops_log.
(LOOP_ALIGN_MAX_SKIP): Default to align_loops-1.
(LABEL_ALIGN_AFTER_BARRIER): Default to align_jumps_log.
(LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP): Default to align_jumps-1.
* varasm.c (assemble_start_function): Handle align_functions.

* config/sparc/sparc.h: Don't declare sparc_align_*.
Don't provide LABEL_ALIGN_AFTER_BARRIER or LOOP_ALIGN.
(DEFAULT_SPARC_ALIGN_FUNCS): Delete; take functionality into
sparc.c.
(FUNCTION_BOUNDARY): Fix incorrect use---it's not just a request,
it's a promise.
* config/sparc/sparc.c: Delete sparc_align_loops,
sparc_align_jumps, sparc_align_funcs and the corresponding string
variables.
(sparc_override_options): Default align_functions on ultrasparc.
Delete -malign-* handling.

* config/mips/mips.c (override_options):  On 64-bit targets,
try to align code to 64-bit boundaries.
(print_operand): New substitution, %~,
which aligns labels to align_labels_log.
* config/mips/mips.md (div_trap_normal): Use %~.
(div_trap_mips16): Likewise.
(abssi): Likewise.
(absdi2): Likewise.
(ffssi2): Likewise.
(ffsdi2): Likewise.
(ashldi3_internal): Likewise.
(ashrdi3_internal): Likewise.
(lshrdi3_internal): Likewise.
(casesi_internal): Likewise.

Plus corresponding documentation changes.

From-SVN: r29045

        Merge peephole2 from new_ia32_branch:
        * Makefile.in (STAGESTUFF): Add *.peephole2.
        (mostlyclean): Likewise.
        (recog.o): Depend on resource.h.

        * final.c (peephole): Conditionalize decl on HAVE_peephole.
        (final_scan_insn): Likewise for the invocation of peephole.
        * genconfig.c (main): Look for peephole and peephole2 patterns.
        Emit HAVE_peephole* accordingly.
        * genpeep.c (main): Conditionalize entire output on HAVE_peephole.
        * flags.h (flag_peephole2): Declare.
        * toplev.c: New pass peephole2.  New flag -fpeephole2.

        * genattrtab.c (main): Count DEFINE_PEEPHOLE2.
        * gencodes.c (main): Likewise.
        * genextract.c (main): Likewise.
        * genoutput.c (main): Likewise.
        * genemit.c (max_operand_1): Look for the max scratch operand.
        (gen_rtx_scratch): New.
        (gen_exp): Use it, and pass on new arg subroutine_type.
        (gen_expand): Take max scratch into account.
        (gen_split): Emit peephole2 functions.
        (output_peephole2_scratch): New.
        (main): Include hard-reg-set.h and resource.h.  Handle peephole2.
        * genrecog.c (routine_type): Add PEEPHOLE2.
        (IS_SPLIT): New.
        (make_insn_sequence): Match outer parallel for peep2.  Discard
        top level scratches and dups.
        (add_to_sequence): New args insn_type and top.  Update all callers.
        Handle toplevel peep2 matching insns.
        (write_subroutine): Handle peep2.
        (write_tree_1): Likewise.
        (write_tree): Likewise.
        (main): Likewise.
        (change_state): New arg afterward.  Update all callers.
        Handle matching separate insns.
        * recog.c (recog_next_insn): New.
        (peephole2_optimize): New.
        * rtl.def (DEFINE_PEEPHOLE2): New.
        * resource.c (find_free_register): New argument last_insn.  Use it
        to find a register available through the entire span.
        * resource.h (find_free_register): Update prototype.

From-SVN: r29015

        * configure.in: Remove code to select/de-select the haifa
        scheduler.  Every scheduled port gets haifa now.
        * configure: Rebuilt.
        * flags.h, genattrtab.c, rtl.h, toplev.c: Remove HAIFA ifdefs.
        * sched.c Deleted.
        * Makefile.in: Corresponding changes.

From-SVN: r28809

* cse.c (cse_insn): Call never_reached_warning when a jump is
changed to be unconditional.
* flags.h: Declare warn_notreached.
* flow.c (delete_block): Call never_reached_warning when
a block is deleted.
* jump.c (delete_barrier_successors): Call never_reached_warning
when we delete everything after a BARRIER.
(never_reached_warning): New function.
* rtl.h: Declare never_reached_warning.
* toplev.c (warn_notreached): New variable.
(lang_independent_options): Set warn_notreached
when -Wunreachable-code.
(compile_file): We need line numbers for -Wunreachable-code.

Also modify documentation to suit.

From-SVN: r28747

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

From-SVN: r26993

From-SVN: r26897

        * flags.h (inline_max_insns): Declare.
        * integrate.c (inline_max_insns): New variable.
        (function_cannot_inline_p): Use it.
        * toplev.c (main): Add the flag -finline-limit-n.
        (display_help): Document -finline-limit-n.
        * invoke.texi: Document -finline-limit-n

From-SVN: r26629

 
1999-01-31 17:52 -0500  Zack Weinberg  <zack@midnite.ec.rhno.columbia.edu>
	* flags.h: Declare flag_no_ident.
	* toplev.c: Define flag_no_ident.  Process -f(no-)ident here.
	* c-decl.c: Don't define flag_no_ident.  Don't process
          -f(no-)ident switches here.
	* ch/decl.c: Likewise.
	* cp/decl2.c: Likewise.
	* c-tree.h: Don't declare flag_no_ident.
	* ch/ch-tree.h: Likewise.
	* cp/cp-tree.h: Likewise.
	* config/elfos.h (ASM_FILE_END): Output final .ident directive
          only if !flag_no_ident.
	* config/ptx4.h: Likewise.
	* config/svr4.h: Likewise.
	* config/alpha/elf.h: Likewise.
	* config/arm/linux-elf.h: Likewise.
	* config/i386/sco5.h: Likewise.
	* config/i860/fx2800.h: Likewise.
	* config/mips/gnu.h: Likewise.
	* config/i386/osfrose.h: Likewise.
	* gcc.c (C specs): Map -Qn to -fno-ident.
	* ch/lang-specs.h: Likewise.
	* cp/lang-specs.h: Likewise.
	* f/lang-specs.h: Likewise.
	* objc/lang-specs.h: Likewise.
	* java/lang-specs.h: Likewise.

From-SVN: r24943

details.

From-SVN: r24879

Ulrich Drepper  <drepper@cygnus.com>
        * Makefile.in (OBJS): Add graph.o
        (graph.o): New dependency list.
        * flags.h: Declare dump_for_graph and define graph_dump_types type.
        * print-rtl.c (dump_for_graph): Define new variable.
        (print_rtx): Rewrite to allow use in graph dumping functions.
        * toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
        finish_graph_dump_file.
        Define graph_dump_format.
        (compile_file): If graph dumping is enabled also clear these files.
        Finish graph dump files.
        (rest_of_compilation): Also dump graph information if enabled.
        (main): Recognize -dv to enabled VCG based graph dumping.
        * graph.c: New file.  Graph dumping functions.

From-SVN: r23813

	* flags.h (flag_branch_on_count_reg): Always declare
	* toplev.c (flag_branch_on_count_reg): Likewise.
	* toplev.c: Fix typos.

From-SVN: r22910

	* flags.h (flag_dump_unnumbered): Declare.
	* toplev.c (flag_dump_unnumbered): Don't declare.
	* print-rtl.c (flags.h): Include.
	(print_rtl_single): Add return value.
	* rtl.h (print_rtl_single): Update declaration.
	* flow.c (flag_dump_unnumbered): Don't declare.
	(print_rtl_with_bb): Use return value of print_rtl_single.

From-SVN: r22865

        * flags.h:  Add flag_data_sections.
        * toplev.c:  Add option -fdata-sections.  Add flag_data_sections.
        (compile_file):  Error if flag_data_sections not supported.
        * varasm.c (assemble_variable):  Handle flag_data_sections.
        * config/svr4.h:  Modify prefixes for UNIQUE_SECTION_NAME.
        * config/mips/elf.h:  Likewise.
        * config/mips/elf64.h:  Likewise.
        * invoke.texi:  Describe -fdata-sections.

From-SVN: r22619

* expr.h (profile_function_entry_libfunc, profile_function_exit_libfunc):
Declare new variables.
* optabs.c: Define them here.
(init_optabs): Initialize them.
* tree.h (struct tree_decl): New flag no_instrument_function_entry_exit.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
* c-decl.c (duplicate_decls): Merge it.
* c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
(init_attributes): Use it for "no_instrument_function".
(decl_attributes): Handle it, for functions that have not yet been compiled.
Set decl flag.
* flags.h (flag_instrument_function_entry_exit): Declare new variable.
* toplev.c (flag_instrument_function_entry_exit): Define it here.
(f_options): New option "instrument-functions".
* function.h (struct function): New field instrument_entry_exit.
* function.c (current_function_instrument_entry_exit): New variable.
(push_function_context_to, pop_function_context_from): Save and restore.
(expand_function_start): Set current_ variable, maybe emit return label and
entry profile call.
(expand_function_end): Maybe emit exit profile call.
Testsuite:
* gcc.c-torture/special/eeprof-1.c: New test, for -finstrument-functions.
* gcc.c-torture/special/special.exp: Run it.

From-SVN: r21495

        details.

From-SVN: r20808

	* invoke.texi (-fstrict-aliasing): Document.
	* rtl.texi (MEM_ALIAS_SET): Document.
	* flags.h (flag_strict_aliasing): Declare.
	* toplev.c (flag_strict_aliasing): Define.
	(f_options): Add -strict-aliasing.
	(main): Set flag_strict_aliasing if -O2 or higher.
	* tree.h (tree_type): Add alias_set field.
	(TYPE_ALIAS_SET): New macro.
	(TYPE_ALIAS_SET_KNOWN_P): Likewise.
	(get_alias_set): Declare.
	* tree.c (lang_get_alias_set): Define.
	(make_node): Initialize TYPE_ALIAS_SET.
	(get_alias_set): New function.
	* print-tree.c (print_node): Dump the alias set for a type.
	* c-tree.h (c_get_alias_set): Declare.
	* c-common.c (c_get_alias_set): New function.
	* c-decl.c (init_decl_processing): Set lang_get_alias_set.
	* expr.c (protect_from_queue): Propogage alias sets.
	(expand_assignment): Calculate alias set for new MEMs.
	(expand_expr): Likewise.
	* function.c (put_var_into_stack): Likewise.
	(put_reg_into_stack): Likewise.
	(gen_mem_addressof): Likewise.
	(assign_parms): Likewise.
	* stmt.c (expand_decl): Likewise.
	* varasm.c (make_decl_rtl): Eliminate redundant clearing of
	DECL_RTL.  Calculate alias set for new MEMs.
	* rtl.def (REG): Add dummy operand.
	(MEM): Add extra operand to store the MEM_ALIAS_SET.
	* rtl.h (MEM_ALIAS_SET): New macro.
	(gen_rtx_MEM): Declare.
	* emit-rtl.c (gen_rtx_MEM): New function.
	* gengenrtl.c (sepcial_rtx): Make MEMs special.
	* alias.c (CHECK_ALIAS_SETS_FOR_CONSISTENCY): New macro.
	(DIFFERENT_ALIAS_SETS_P): Likewise.
	(canon_rtx): Propogate the alias set to the new MEM.
	(true_dependence): Check the alias sets.
	(anti_dependence): Likewise.
	(output_dependence): Likewise.
	* explow.c (stabilize): Progoate alias sets.
	* integrate.c (copy_rtx_and_substitute): Likewise.
	* final.c (alter_subreg): Make sure not to leave MEM_IN_STRUCT_P
	in an unpredictable state.  Propogate alias sets.
	* reload1.c (reload): Clear MEM_ALIAS_SET for new MEMs about which
	we have no alias information.

From-SVN: r20719

Thu Jun  8 14:16:15 EDT 1998  Andrew MacLeod  <amacleod@cygnus.com>
	* eh-common.h: Remove NEW_EH_MODEL compile time flag, and replace with
	flag_new_exceptions runtime flag.
	(struct old_exception_table): New struct which represents what
	the exception table looks like without the new model.
	(NEW_EH_RUNTIME): New value used as a tag in the exception table to
	flag that this is a new style table.
	* except.h: Remove compile time flag NEW_EH_MODEL.
	(expand_builtin_eh_stub_old): New prototype.
	* tree.h (enum built_in_function): Add BUILT_IN_EH_STUB_OLD.
	* expr.c (expand_builtin): New builtin func BUILT_IN_EH_STUB_OLD.
	* c-decl.c (init_decl_processing): Add new builtin function
	__builtin_eh_stub_old.
	* final.c (final_scan_insn): Replace compile time flag NEW_EH_MODEL.
	* flags.h (flag_new_exceptions): New runtime flag.
	* toplev.c (flag_new_exceptions): Initialize default to 0,
	-fnew-exceptions sets to 1.
	* except.c (output_exception_table_entry): Output New style exception
	identifier into table, and replace compile time flag NEW_EH_MODEL
	with runtime flag flag_new_exceptions.
	(output_exception_table): Replace compile time flag NEW_EH_MODEL.
	(expand_builtin_eh_stub_old): Duplicates original functionality of
	expand_builtin_eh_stub.
	(expand_builtin_eh_stub): Replace compile time flag NEW_EH_MODEL.
	* libgcc2.c (find_exception_handler): Remove NEW_EH_MODEL #ifdefs.
	(old_find_exception_handler): New func, same as find_exception_handler
	except it works on the old style exception table.
	(__throw): Replace NEW_EH_MODEL. Detect new model based on presence
	of identifier in the exception table, and call appropriate routines.
1998-06-08  Andrew MacLeod  <amacleod@cygnus.com>
	* except.c (init_exception_processing): Remove NEW_EH_MODEL compile
	time flag.  Call __cp_eh_info instead of __cp_exception_info.
	* exception.cc (struct cp_eh_info): Remove NEW_EH_MODEL flag.
	(__cp_exception_info): Return offset into cp_eh_info structure to
	match what use to be the start of this structure.
	(__cp_eh_info): New function to return a pointer to cp_eh_info struct.
	(__cplus_type_matcher, __cp_push_exception): Remove NEW_EH_MODEL
	compile time flag.
	(__uncatch_exception, __check_eh_spec, std::uncaught_exception): Call
	__cp_eh_info instead of __cp_exception_info.

From-SVN: r20336

	* basic-block.h (basic_block_computed_jump_target): Declare.
	* flags.h: (current_function_has_computed_jump): Declare.
	* flow.c: (basic_block_computed_jump_target): Define.
	(flow_analysis): Allocate it. Set current_function_has_computed_jump
	to 0.
	(find_basic_blocks): Set current_function_has_computed_jump and
	elements of basic_block_computed_jump_target to 1 as appropriate.
	* function.c: (current_function_has_computed_jump): Define.
	* global.c (global_conflicts): Don't allocate pseudos into stack regs
	at the start of a block that is reachable by a computed jump.
	* reg-stack.c (stack_reg_life_analysis): If must restart, do so
	immediately.
	(subst_stack_regs): Undo change from Sep 4 1997.
	(uses_reg_or_mem): Now unused, deleted.
	* stupid.c (stupid_life_analysis): Compute
	current_function_has_computed_jump.
	(stupid_find_reg): Don't allocate stack regs if the function has a
	computed goto.
        * haifa-sched.c (is_cfg_nonregular): Delete code to determine if
        the current function has a computed jump.  Use the global value
        instead.

Co-Authored-By: Jeffrey A Law <law@cygnus.com>

From-SVN: r18860

        * flags.h (g_switch_value, g_switch_set): Declare.
        * alpha.c (override_options): Set g_switch_value=8 if not set.
        * alpha/elf.h (CC1_SPEC): New.
        (ASM_SPEC): New.
        (LINK_SPEC): Pass along the -G value we were given.
        (LOCAL_ASM_OP): Remove.
        (ASM_OUTPUT_ALIGNED_LOCAL): Output to .bss or .sbss by size.
        (MAX_OFILE_ALIGNMENT): New.
        (BSS_SECTION_ASM_OP, SBSS_SECTION_ASM_OP, SDATA_SECTION_ASM_OP): New.
        (EXTRA_SECTIONS): Add sbss and sdata.
        (SECTION_FUNCTION_TEMPLATE): New.
        (EXTRA_SECTION_FUNCTIONS): Use it.
        (CTORS_SECTION_FUNCTION, DTORS_SECTION_FUNCTION): Remove.
        (SELECT_SECTION): Use sdata when small enough.
        * alpha/linux.h (ASM_SPEC): Remove.

From-SVN: r18225

        * toplev.c (flag_schedule_reverse_before_reload): Delete variable.
        (flag_schedule_reverse_after_reload): Likewise.
        (f_options): Remove reverse scheduling support.
        * flags.h (flag_schedule_reverse_before_reload): Delete declaration.
        (flag_schedule_reverse_after_reload): Likewise.
        * haifa-sched.c (rank_for_schedule): Remove support for reverse
        scheduling.
Trivial cleanup.

From-SVN: r18020

	* regmove.c: Update.
	* flags.h (flag_regmove): Declare.
	* rtl.h (optimize_reg_copy_1, optimize_reg_copy_2): Don't declare.
	* local-alloc.c (optimize_reg_copy_1, optimize_reg_copy_2):
	Moved into regmove; changed caller.
	* toplev.c (rest_of_compilation): Call regmove_optimize also for
	expensive_optimizations.

From-SVN: r17669

        * flags.h: New flag (optimize_size).
        * toplev.c (main): Parse -Os option and set optimize_space
        accordingly.
        * gcc.c (default_compilers), cp/lang-specs.h, f/lang-specs.h: Define
        __OPTIMIZE_SIZE__ when compiling with -Os.
        * config/dsp16xx/dsp16xx.h, config/i386/i386.h,
        config/i386/dgux.h, config/i960/i960.h, config/pdp11/pdp11.h,
        config/v850/v850.h (OPTIMIZATION_OPTIONS): New SIZE argument
        to macro.
        * config/i386/i386.c (optimization_options): Accept new SIZE argument.

From-SVN: r17497

From-SVN: r17355

        * flags.h, toplev.c, calls.c, alias.c: Remove flag_alias_check;
        optimization is now always enabled.
        * calls.c (expand_call): Recognize C++ operator new as malloc-like
        function.
        * alias.c (memrefs_conflict_p): Eliminate tests now done by
        base_alias_check.
        (*_dependence): Call canon_rtx before base_alias_check.
        (init_alias_once): New function to precompute set of registers which
        can hold Pmode function arguments.
        * rtl.h: Declare init_alias_once.
        * toplev.c (compile_file): Call init_alias_once.

From-SVN: r17226

c-pragma.c (handle_pragma_token): Generate warning messages about unknown pragmas if warn_unknown_pragmas is set.

        * c-pragma.c (handle_pragma_token): Generate warning messages
        about unknown pragmas if warn_unknown_pragmas is set.
        * c-decl.c (c_decode_option): Parse -Wunknown-pragmas command
        line option to set variable: warn_unknown_pragmas.

From-SVN: r17168

        * flags.h (flag_rerun_loop_opt): Declare.
        * loop.c (invariant_p, case LABEL_REF): Check flag_rerun_loop_opt.
        * toplev.c (flag_rerum_loop_opt): Delete static.

From-SVN: r16389

        * flags.h (flag_move_all_movables): Declare.
        (flag_reduce_all_givs): Likewise.
        * loop.c (move_movables): Handle flag_move_all_movables.
        (strength_reduce): Handle flag_reduce_all_givs.
        * toplev.c (flag_move_all_movables): Define.
        (flag_reduce_all_givs): Likewise.
        (f_options): Add -fmove-all-movables and -freduce-all-givs.
        * invoke.texi: Document new options, including alias stuff that
        wasn't included last time.
Two of the "Tooning" options :-)

From-SVN: r14987

        * Integrate regmove pass.
See ChangeLog for deatils.

From-SVN: r14770

        * Makefile.in (OBJS): Add alias.o
        (alias.o): Add dependencies.
        * alias.c: New file.
        * sched.c: Remove alias analysis code.  It lives in alias.c now.
        (reg_last_uses_size): Declare.
        (sched_analyze_2): Add new arguments to true_dependence.
        (sched_analyze_insn): Use reg_last_uses_size instead of max_reg.
        (schedule_block): Initialize reg_last_uses_size.
        (schedule_insns): Always call init_alias_analysis.
        * calls.c (expand_call): Note calls to malloc, calloc, and realloc;
        mark return value from such functions as a pointer and keep track of
        them for alias analysis.  If a return value from a function is a
        pointer, mark it as such.
        * combine.c (distribute_notes): Handle REG_NOALIAS.
        * cse.c (struct write_data): Delete.  No longer needed.
        (invalidate): Don't call set_nonvarying_address_components anymore.
        Use true_dependence to decide if an entry should be removed from
        the hash table.
        (invalidate_memory): Remove WRITES argument, simplify appropriately.
        Fix all callers.
        (note_mem_written): Similarly for WRITE_PTR argument.
        (invalidate_from_clobbers): Similarly for W argument.
        (invalidate_for_call): Remove memory elements from the hash table.
        (refers_to_mem_p, cse_rtx_addr_varies_p): Deleted.
        (cse_rtx_varies_p): New function.  Derived from old
        cse_rtx_addr_varies_p.
        (cse_insn): Remove WRITES_MEMORY and INIT variables and all references.
        Don't call note_mem_written anymore.  Stack pushes invalidate the stack
        pointer if PUSH_ROUNDING is defined.  No longer need to call
        cse_rtx_addr_varies_p to decide if a MEM should be invalidated.
        (skipped_writes_memory): Remove variable.
        (invalidate_skipped_set): Simplify and wewrite to use invalidate_memory.
        (invalidate_skipped_block): Simplify for new alias analysis code.
        (cse_set_around_loop): Likewise.
        (cse_main): Call init_alias_analysis.
        * flags.h (flag_alias_check, flag_argument_noalias): Declare.
        * toplev.c (flag_alias_check, flag_argument_noalias): Define.
        (f_options): Add new alias checking arguments.
        (main): Set flag_alias_check when optimizing.
        * local_alloc (validate_equiv_mem_from_store): Add new arguments
        to true_dependence.
        (memref_referenced_p): Likewise.
        * loop.c (NUM_STORES): Increase to 30.
        (prescan_loop): Only non-constant calls set unknown_address_altered.
        (invariant_p): Add new arguments to true_dependence.
        (record_giv): Initialize unrolled and shared fields.
        (emit_iv_add_mult): Call record_base_value as needed.
        * loop.h (struct induction): Add unrolled and shared fields.
        * unroll.c  (unroll_loop): Call record_base_value as needed.
        (copy_loop_body): Likewise.
        (final_biv_value): Likewise.
        (final_giv_value): Likewise.
        (find_splittable_regs): Likewise.  Only create one new pseudo
        if we have multiple address GIVs that were combined with the same
        dst_reg GIV.  Note when a new register is created due to unrolling.
        * rtl.c (reg_note_name): Add REG_NOALIAS.
        * rtl.h (enum reg_note): Similarly.
        (rtx_varies_p, may_trap_p, side_effects_p): Declare.
        (volatile_refs_p, volatile_insn_p, remove_note): Likewise.
        (note_stores, refers_to_regno_p, reg_overlap_mentioned_p): Likewise.
        (true_dependence, read_dependence, anti_dependence): Likewise.
        (output_dependence, init_alias_analysis, end_alias_analysis): Likewise.
        (mark_user_reg, mark_reg_pointer): Likewise.
jfc's alias analysis code.

From-SVN: r14768

From-SVN: r14613

From-SVN: r14468

From-SVN: r13999

From-SVN: r13974

From-SVN: r13968

	* flags.h (profile_arc_flag, flag_test_coverage,
	flag_branch_probabilities): Declare.

From-SVN: r13814

From-SVN: r13160

From-SVN: r12390

From-SVN: r12005