* 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

        * toplev.c (main): In -g handling code, add code to set len.

        * alpha.md (extendqihi2): Use HImode not QImode in force_reg call.

Brought over from gcc2.

From-SVN: r14801

        * 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

(f_options): Add `check-memory-usage' and `prefix_function_name'.
(main): Disable `-fomit-frame-pointer' if `-fcheck-memory-usage' is set
and the machine can't debug without the frame pointer.

From-SVN: r14617

From-SVN: r14600

From-SVN: r14557

From-SVN: r14544

From-SVN: r14478

(f_options): Add "stack-check".

From-SVN: r14473

From-SVN: r14427

From-SVN: r14418

From-SVN: r14261

From-SVN: r13968

From-SVN: r13948

From-SVN: r13874

	* toplev.c (branch_prob_dump, profile_arc_flag, flag_test_coverage,
	flag_branch_probabilities, branch_prob_dump_file, branch_prob_time):
	New variables.
	(f_options): Add profile-arcs, test-coverage, and
	branch-probabilities.
	(compile_file): Set branch_prob_time.  Pass flag_test_coverage to
	init_emit_once.  Handle branch_prob_dump.  Call init_branch_prob.
	Call end_branch_prob. Call output_func_start_profiler.
	(rest_of_compilation): Handle branch_prob_dump.  Call new
	branch_prob pass.
	(main): Set branch_prob_dump.

From-SVN: r13823

From-SVN: r13652

	* toplev.c (main): Delete redundant settings of flag_no_inline
	and warn_inline if not optimizating.

From-SVN: r13619

front end has disabled it.

From-SVN: r13534

debugging not supported.

From-SVN: r13520

From-SVN: r13519

From-SVN: r13310

	* toplev.c (rest_of_compilation): Make sure that the unwinder RTL
	is saved.

From-SVN: r13289

From-SVN: r13258

From-SVN: r13225

From-SVN: r13209

	* sdbout.c (current_file): New global.
	(PUT_SDB_SRC_FILE): New PUT_SDB_FOO macro.
	(sdbout_init): Initialize current_file ifdef MIPS_DEBUGGING_INFO.
	(sdbout_{start_new,resume_previous}_source_file): New functions.
	* toplev.c (debug_{start,end}_source_file): Call them if SDB_DEBUG.
	* mips/mips.h (PUT_SDB_SRC_FILE): Define.

From-SVN: r13179

From-SVN: r13160

From-SVN: r13116

From-SVN: r12966

From-SVN: r12956

From-SVN: r12955

From-SVN: r12905

From-SVN: r12895

From-SVN: r12894

(PREFERRED_DEBUGGING_TYPE): If no debugging formats are supported, set
to NO_DEBUG.
(main): Don't do setting of PREFERRED_DEBUGGING_TYPE here.

From-SVN: r12829

From-SVN: r12676

From-SVN: r12675

From-SVN: r12649