i386.md (test?i_1): Use "nonmemory_operand" predicate, simplify condition.

[gcc.git] / gcc / ChangeLog

Fri Dec 17 01:32:38 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* i386.md (test?i_1): Use "nonmemory_operand" predicate, simplify
	condition.
	(one_cmpl?i*): Pass "NOT" to unary_operator_ok.

1999-12-16  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (INTREGRATE_H): Rename to INTEGRATE_H.
	* function.c (insert_block_after_note): Remove.
	(retrofit_block): Likewise.
	(identify_blocks): Fix indentation.
	(reorder_blocks): Don't NULL out NOTE_SOURCE_FILE for a
	NOTE_INSN_BLOCK_BEG or NOTE_INSN_BLOCK_END.
	* function.h (insert_block_after_note): Remove prototype.
	(retrofit_block): Likewise.
	* integrate.c (expand_inline_function): Don't call
	find_loop_tree_blocks.  Use expand_start_bindings_and_block, not
	just expand_start_bindings.  Use the block_map to remap old
	NOTE_BLOCKs to new ones.
	(integrate_decl_tree): Keep track of remapped blocks.
	* integrate.h (struct inline_remap): Add block_map.
	* stmt.c (expand_fixup): Don't try to retrofit_blocks.  Just set
	NOTE_BLOCK on the notes.
	(expand_start_bindings): Rename to ...
	(expand_start_bindings_and_block): Add parameter.  Set NOTE_BLOCK.
	(expand_end_bindings): Set NOTE_BLOCK.
	* toplev.c (rest_of_compilation): In function-at-a-time-mode,
	reconstruct the BLOCK tree.
	* tree.h (expand_start_bindings): Macroize.  Call ...
	(expand_start_bindings_and_block): New function.
	
1999-12-16  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (print_operand): Cast fprintf arguments
	to match the format.

1999-12-16  David S. Miller  <davem@redhat.com>

	* expr.c (emit_move_insn_1): Only emit clobbers if one of
	the outputs is a SUBREG.
	* rtlanal.c (reg_overlap_mentioned_p): Revert December 15th
	change.

	* config/sparc/sparc.c (epilogue_renumber): Add default case
	to switch stmt.

Thu Dec 16 11:33:57 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* toplev.c (rest_of_compilation): Run branch shortening after
	reg-stack.

	* regclass.c (loop_depth): Remove
	(scan_one_insn): Do not handle LOOP_NOTE insns.
	(regclass): Go through basic blocks and set loop_cost

Thu Dec 16 02:56:25 1999  Zack Weinberg  <zack@bitmover.com>

	* tree.h (DECL_FROM_INLINE): Check DECL_ABSTRACT_ORIGIN too.

Thu Dec 16 10:43:35 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* i386.md (movqi): Use "nonimmediate_operand" for output operand.
	(movstrictqi, movdi, movsf, movdf, movxf): Likewise.
	(adddi, addqi, addhi, subdi, subqi, subhi, ffs): Likewise.

Thu Dec 16 02:41:26 1999  Richard Henderson (rth@cygnus.com)

	* loop.c (insert_loop_mem): Ignore memory clobbers.

	* combine.c (simplify_comparison): Reduce (OP (MINUS A B) 0)
	to (OP A B).

Thu Dec 16 02:26:11 1999  Jeffrey A Law  (law@cygnus.com)

	* profile.c: Remove redundant #include "output.h".

	* h8300.md (HImode preinc peephole): Fix typo.

1999-12-15  Jason Merrill  <jason@casey.cygnus.com>

	* function.c (retrofit_block): Abort if we don't find a suitable insn.
	(insert_block_after_note): Abort if we don't have a previous block.
	Remove FN parameter.
	* function.h: Adjust.

1999-12-15  Mark Mitchell  <mark@codesourcery.com>

	* builtins.c (expand_builtin_mathfn): Make sure not to expand the
	argument more than once.

1999-12-15  Jason Merrill  <jason@casey.cygnus.com>

	* stmt.c (expand_decl): Expand upper bound of a dynamic array.

1999-12-15  Jakub Jelinek  <jakub@redhat.com>

	* expr.c (emit_group_load): Use dst mode if src is VOIDmode.

Wed Dec 15 16:11:55 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* function.c (PREFERRED_STACK_BOUDNARY): Provide default value.
	(assign_stack_local_1): Limit alignment to PREFERRED_STACK_BOUNDARY,
	update stack_alignment_needed.
	(prepare_function_start): Initialize stack_alignment_needed
	* function.h (struct function): Add field stack_alignment_needed.

Wed Dec 15 14:55:24 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

	* caller-save.c (insert_one_insn): Returns struct insn_chain *.
	Handle live_throughout / dead_or_set instead of live_before /
	live_after.
	(save_call_clobbered_regs): Get register livenessinformation from
	chain->live_throughout.
	(add_stored_regs): New function.
	(insert_restore, insert_save): Add restored / saved registers to
	dead_or_set.
	* global.c (reg_dies): New parameter chain.
	(reg_becomes_live): Third parameter is regs_set now.
	Changed all callers.
	(reg_dies): New parameter chain.  Changed all callers.
	(build_insn_chain): Set live_throughout instead of
	live_before / live_after.
	* reload.h (struct insn_chain): Replace members live_before /
	live_after with live_throughout / dead_or_set.
	* reload1.c (new_insn_chain): Handle live_throughout / dead_or_set
	instead of live_before / live_after.
	(maybe_fix_stack_asms, find_reload_regs, finish_spills): Likewise.
	(order_regs_for_reload, find_reg, finish_spills): Likewise.
	(choose_reload_regs_init): Likewise.
	* stupid.c (current_chain, find_clobbered_regs): Delete.
	(stupid_life_analysis): Set chain->live_throughout chain->dead_or_set
	instead of chain->live_before / chain->live_after.
	(mark_hard_ref): New function.
	(stupid_mark_refs): Call mark_hard_ref. Clear chain->live_throughout.

1999-12-15  David S. Miller  <davem@redhat.com>

	* rtlanal.c (reg_overlap_mentioned_p): Handle CONCAT.

Wed Dec 15 15:05:30 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* flow.c (calculate_loop_depth): Make global, remove prototype,
	rewrite to use new loop infrastructure.
	(find_basic_block): Remove calculate_loop_depth call.
	* toplev.c (rest_of_compilation): Call find_basic_block.
	* output.h (calculate_loop_depth): Declare.

	* flow.c (dump_flow_info): Dump loop_depth.
	(flow_loops_nodes_find): Increase loop_depth for basic block in the
	body.
	(flow_loops_find): Initialize the loop_depth for each basic block.

1999-12-15  Jason Merrill  <jason@casey.cygnus.com>

	* tree.c (decl_function_context): Handle virtual functions.

	* tlink.c (scan_linker_output): Don't look in demangled name when
	looking for linker output keywords.

	* dwarfout.c (output_type): We can defer namespace-scope classes.

Wed Dec 15 01:23:29 1999  Jeffrey A Law  (law@cygnus.com)

	* regclass.c (record_reg_classes): Update comment for merging
	register class preferences in reg->reg copies.  Tighten conditions
	for merging register class preferences in reg->reg copies.

Wed Dec 15 02:19:32 1999  David Edelsohn  <edelsohn@gnu.org>

	* rs6000.md (tablejumpdi): Generate DImode LABEL_REF.

1999-12-14  Geoff Keating  <geoffk@cygnus.com>

	* config/m68k/m68020-elf.h (ENDFILE_SPEC): Delete.
	(INIT_SECTION_ASM_OP): Delete.
	(FINI_SECTION_ASM_OP): Delete.
	(STARTFILE_SPEC): Define to hold just crtbegin.o.

1999-12-14  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (add_abstract_origin_attribute): Do call abort if
	the abstract origin wasn't emitted.

	* dwarf2out.c (class_scope_p): New fn.
	(gen_subprogram_die): Use it.
	(gen_variable_die): Use it.  Tweak logic.
	(gen_struct_or_union_type_die): Check context_die to determine
	if we're function-local.
	(dwarf2out_decl): Check DECL_BUILT_IN, not DECL_FUNCTION_CODE.

1999-12-14  Bernd Schmidt  <bernds@cygnus.co.uk>

	* loop.c (check_dbra_loop): Can't reverse a biv that has
	maybe_multiple set.

1999-12-14  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm.c: Add support for -mcpu=arm720 command line
	switch. 

Tue Dec 14 18:13:32 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (strength_reduce): Fix sign of giv lifetime calculation
	for givs made from biv increments.

Tue Dec 14 08:11:27 1999  Richard Henderson  <rth@cygnus.com>

	* configure.in (alpha-osf, alpha-linux): Handle ev6[78].
	* alpha.c (override_options): Recognize -mcpu=ev67.
	* alpha.h (CPP_CPU_EV67_SPEC): New.
	(CPP_CPU_DEFAULT_SPEC): Examine TARGET_CPU_DEFAULT to use it.
	(EXTRA_SPECS): Update.

Tue Dec 14 08:04:28 1999  Richard Henderson  <rth@cygnus.com>

	* cppp.c (main): Set trigraphs and __STRICT_ANSI__ as
	appropriate for -lang-c89 and -std=*.
	* cppinit.c (cpp_handle_option): Likewise.
	(new_pending_define): New, split out from cpp_handle_option.
	* gcc.c (default_compilers): Don't define __STRICT_ANSI__
	or enable trigraphs for -ansi/-std=*.

	* ginclude/stdarg.h (__va_copy): New.
	(va_copy): Don't define for C89.

Tue Dec 14 08:37:27 CST 1999 Clinton Popetz  <cpopetz@cygnus.com>

	* config/arm/arm.md (mulsidi3adddi, umulsidi3adddi): New patterns
	for long long multiply-accumulate.

Tue Dec 14 13:51:38 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* regclass.c (scan_one_insn): Set loop_cost to 1 when
	optimizing for size.

1999-12-14  Bernd Schmidt  <bernds@cygnus.co.uk>

	* reload1.c (reload): Can't avoid select_reload_regs/finish_spills
	if something changed.  Back out that part of yesterday's changes.

	* loop.c (loop_max_reg): New static variable.
	(loop_optimize): Initialize it.  Eliminate one unnecessary call to
	max_reg_num.
	(scan_loop): Call reg_scan_update whenever we may have added new
	registers, and update loop_max_reg.

Tue Dec 14 12:07:29 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* regclass.c  (record_reg_classes): Do not do the copying preferrencing
	when source does not die.

	* regclass.c (record_reg_classes): Handle INOUT operands propertly.

1999-12-14  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/linux64.h (TARGET_LIVE_G0,
	TARGET_BROKEN_SAVERESTORE): Don't support weird SPARC
	variants on Linux.
	* config/sparc/linux.h (TARGET_LIVE_G0,
	TARGET_BROKEN_SAVERESTORE): Likewise.
	* config/sparc/linux-aout.h (TARGET_LIVE_G0,
	TARGET_BROKEN_SAVERESTORE): Likewise.

	* config/sparc/sparc.h (SPARC_DEFAULT_CMODEL): Default to CM_32.
	(CONDITIONAL_REGISTER_USAGE): For block profiling fix %g4 on sparc64,
	not %g2.
	(MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Use %g4 instead of %g2
	as sparc64 block profiling register.
	* config/sparc/sparc.c (sparc_override_options): Allow block
	profiling with -m32.
	(sparc_block_profiler): Use %g4 instead of %g2 as sparc64 block
	profiling register.
	* config/sparc/linux64.h (MACHINE_STATE_*): Only provide these
	macros on TARGET_ARCH32. sparc.h has macros good enough for sparc64.
	* config/sparc/sol2.h (MACHINE_STATE_*): Likewise.

	* config/sparc/xm-sp64.h: Avoid using __sparc_v9__ when testing
	for sparc64.
	* config/sparc/sparc.h: Likewise.
	* config/sparc/xm-sysv4-64.h: Likewise.
	* config/float-sparc.h: Likewise.
	* glimits.h: Likewise.
	* longlong.h: Likewise.

	* config/sparc/linux64.h (DEFAULT_VTABLE_THUNKS): Define to 1.
	(ASM_IDENTIFY_GCC): Remove.

1999-12-14  Bernd Schmidt  <bernds@cygnus.co.uk>

	* combine.c (combine_simplify_rtx): Don't make shared rtl.
	(simplify_logical): Likewise.

1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>

	* cccp.c (INO_T_EQ): Disable inode-based optimization for Cygwin.
	* cppfiles.c (INO_T_EQ): Likewise.

1999-12-14  Mumit Khan  <khan@xraylith.wisc.edu>

	* i386/crtdll.h (STARTFILE_SPEC): Add -pg profiling support.
	* i386/mingw32.h (LIB_SPEC): Likewise.
	(STARTFILE_SPEC): Likewise.
	* i386/uwin.h (LIB_SPEC): Likewise.
	(STARTFILE_SPEC): Likewise.

	* i386/mingw32.h (SUBTARGET_PROLOGUE): Override Cygwin definition.
	* i386/uwin.h (SUBTARGET_PROLOGUE): Likewise.

Mon Dec 13 20:25:29 1999  Jeffrey A Law  (law@cygnus.com)

	* combine.c (combine_simplify_rtx): Fix order of checks for
	(ashiftrt foo C) -> (lt foo (const_int 0)) simplification.
	
1999-12-13  Clinton Popetz  <cpopetz@cygnus.com>

	* config/arm/arm.md  (*mulsidi3adddi, *umulsidi3adddi) Backed out 
	12/10/99 change, reapplied to merged-arm-thumb-backend-branch.

1999-12-10  Bernd Schmidt  <bernds@cygnus.co.uk>

	* hard-reg-set.h (inv_reg_alloc_order): Declare if REG_ALLOC_ORDER is
	defined.
	* regclass.c (inv_reg_alloc_order): New array.
	(regclass_init): If REG_ALLOC_ORDER is defined, initialize it.

	* reload.h (struct insn_chain): Delete fields group_size, group_mode,
	counted_for_groups, counted_for_nongroups.  Add fields rld and
	n_reloads.
	* reload.c (push_secondary_reload): Don't set nongroup field of
	new reloads.
	(push_reload): Likewise.
	(find_reloads): Delete code to compute nongroup fields.
	* reload1.c (reload_insn_firstobj): New static variable.
	(pseudos_counted, spilled_pseudos): Now of type regset_head.  All
	users changed.
	(calculate_needs, find_tworeg_group, find_group, possible_group_p,
	count_possible_groups, modes_equiv_for_class_p, new_spill_reg,
	dump_needs, maybe_mark_pseudo_spilled, hard_reg_use_compare): Delete
	functions.
	(count_pseudo, select_reload_regs, copy_reloads, find_reg): New
	functions.
	(struct hard_reg_n_uses): Deleted.
	(potential_reload_regs): Deleted.
	(init_reload): Initialize spilled_pseudos and pseudos_counted.
	(reload): Don't try to allocate reload registers if we already know
	we have to make another pass.  Call select_reload_regs.  Free memory
	starting with reload_firstobj when starting another pass.
	Don't allocate spilled_pseudos.
	(calculate_needs_all_insns): Call copy_reloads for an insn that
	needs reloads; don't call calculate_needs.
	(spill_cost): New static array.
	(used_spill_regs_local): New static variable.
	(order_regs_for_reload): Rewrite to lose hard_reg_n_uses and the code
	to compute potential_reload_regs.
	(find_reload_regs): Completely rewritten to use find_reg.
	(allocate_reload_reg): Don't test counted_for_groups or
	counted_for_nongroups.  Lose NOERROR arg and code to give an error;
	all cllers changed.
	(choose_reload_regs): Add fallback code that uses the existing
	register allocation from find_reload_regs.

Mon Dec 13 00:54:14 1999  Philippe De Muyter  <phdm@macqel.be>

	* flow.c (create_edge_list): Cast xmalloc return value.

Mon Dec 13 00:47:58 1999  Jeffrey A Law  (law@cygnus.com)

	* doprnt.c: Remove incorrect comment closure.

	* cse.c: Fix a few minor whitespace goofs.

1999-12-13  Don Bowman  <don@pixstream.com>

	* mips/vxworks.h: Fix problem with comment termination.
	(EXTRA_SECTIONS): Add in_sbss.
	(EXTRA_SECTION_FUNCTIONS): Corresponding changes.

1999-12-12  David S. Miller  <davem@redhat.com>

	* cse.c (struct cse_reg_info): Add hash_next member,
	reorder rest of struct for better packing on 64-bit
	hosts.
	(cse_reg_info_tree): Kill.
	(REGHASH_SHIFT, REGHASH_SIZE, REGHASH_MASK, reg_hash,
	REGHASH_FN): New custom pow2 hash mechanism.
	(NBUCKETS): Kill.
	(HASH_SHIFT, HASH_SIZE, HASH_MASK, HASH, table): Rework to
	use a pow2 hash table.
	(get_cse_reg_info): Rework to use new REGHASH.
	(new_basic_block): Likewise, use HASH_SIZE, and inline
	free_element call.
	(remove_from_table): Rework to use HASH_SIZE/HASH_MASK,
	and inline free_element call.
	(lookup_as_function, insert, flush_hash_table, invalidate,
	remove_invalid_refs, remove_invalid_subreg_refs, rehash_using_reg,
	invalidate_for_call, use_related_value, find_comparison_args,
	fold_rtx, equiv_constant, cse_insn, invalidate_memory): Likewise.
	(hash_cse_reg_info, cse_reg_info_equal_p, free_element,
	get_element): Kill.
	
Sun Dec 12 21:31:44 1999  Jeffrey A Law  (law@cygnus.com)

	* cse.c (cse_basic_block): Free qty_table consistently.

1999-12-12  David S. Miller  <davem@redhat.com>
	    Jakub Jelinek    <jakub@redhat.com>

	* config/sparc/sparc.md (movtf reg/reg split): Don't generate
	SUBREGs by hand, gen the appropriate hard reg directly.
	(movtf reg/mem split): Likewise and alter_subreg on destination
	if necessary.
	(movtf mem/reg split): Similarly.
	(movdf_cc_sp64): Rename from hidden pattern.
	(movtf_cc_hq_sp64): Renamed from movtf_cc_sp64.
	(movtf_cc_sp64, following split): New pattern and splitter.
	(movdf_cc_reg_sp64): Rename from hidden pattern.
	(movtf_cc_reg_hq_sp64): Renamed from movtf_cc_reg_sp64, require
	TARGET_HARD_QUAD.
	(movtf_cc_reg_sp64, following split): New pattern and splitter.

1999-12-12  Stephen L Moshier <moshier@mediaone.net>

	* loop.c (load_mems): Don't hoist written floating point mem
	if -ffloat-store.
	
1999-12-12  Mark Mitchell  <mark@codesourcery.com>

	* except.h (struct eh_queue): Add `next' pointer.
	(struct eh_status): Make x_ehqueue a pointer.
	(push_ehqueue):  Declare.
	(pop_ehqueue): Likewise.
	* except.c (expand_eh_region_end): Adjust now that ehqueue is a
	pointer.
	(expand_fixup_region_end): Likewise.
	(expand_leftover_cleanups): Likewise.
	(push_ehqueue): Define.
	(pop_ehqueue): Likewise.
	(emit_cleanup_handler): Use push_ehqueue and pop_ehqueue rather
	than doing it inline.
	(expand_start_all_catch):  Adjust now that ehqueue is a
	pointer.
	(mark_eh_queue): Mark all level of the queue.
	(mark_eh_status):  Adjust now that ehqueue is a
	pointer.
	(init_eh_for_function): Allocate ehqueue.
	(free_eh_status): Free it.
	* stmt.c (expand_cleanups): Save the ehqueue around the cleanup
	expansion for a fixup.

1999-12-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gthr-single.h (__gthread_active_p): Add prototype arguments.

	* libgcc2.c (__udivmoddi4): Remove unnecessary decls.
	(__dummy, __builtin_saveregs, __bb_exit_trace_func, __bb_init_prg,
	__bb_trace_func, __bb_trace_func_ret, __bb_trace_ret,
	function_ptr, getpagesize, __enable_execute_stack,
	__enable_execute_stack, __clear_insn_cache,
	__enable_execute_stack, __do_global_dtors, __do_global_ctors,
	_cleanup, _exit, __default_terminate, __terminate_func,
	__terminate, __empty, __throw, new_eh_context,
	eh_context_initialize, eh_context_static, eh_context_specific,
	get_eh_context, __get_eh_context, __get_eh_info,
	init_reg_size_table, eh_threads_initialize,
	__get_dynamic_handler_chain, __sjthrow, __sjpopnthrow,
	__unwinding_cleanup, throw_helper, __throw, __rethrow,
	__pure_virtual): Add prototype arguments.	
	(__bb_exit_func): Cast a sizeof to long when comparing against one.
	Cast a signed value to unsigned long when comparing against one.
	(new_eh_context): Wrap in _GTHREADS macro.
	(__sjthrow, __sjpopnthrow): Initialize variable `cleanup' at
	declaration.
	(in_reg_window): Mark parameters with __attribute__ ((__unused__)).
	(throw_helper): Initialize variables `handler_p' and `pc_p'.
	
1999-12-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* 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.

1999-12-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* i386-protos.h (output_387_binary_op, output_fix_trunc,
	output_fp_compare): Constify a char*.

	* i386.c (ix86_split_to_parts, ix86_safe_length_prefix): Add
	static prototypes.
	(override_options, ix86_comp_type_attributes, print_operand,
	output_387_binary_op, output_fix_trunc, output_fp_compare):
	Constify a char*.
	(ix86_sched_reorder): Mark parameter `clock_var' with
	ATTRIBUTE_UNUSED.

	* i386.h (DEBUG_PRINT_REG): Constify a char*.

Fri Dec 10 16:12:13 1999  Alexandre Petit-Bianco  <apbianco@cygnus.com>

	* tree.def (EXPR_WITH_FILE_LOCATION): Temporarily add a third
 	operand, for use in the Java front-end.

1999-12-10  Ben Collins  <bcollins@debian.org>

	* configure.in: Fix typo for "-64" in 64bit as check.
	* configure: Rebuilt.
	
1999-12-10  Jakub Jelinek  <jakub@redhat.com>

	* longlong.h (__sparc_v9__): Use %rDIGIT instead of %DIGIT where
	appropriate.

1999-12-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* c-parse.in (string): With -Wtraditional, warn if ANSI string
	concatenation is utilized.

	* invoke.texi (-Wtraditional): Document it.

1999-12-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* flow.c (flow_loops_dump): Avoid ANSI string concatenation.
	Cast a ptrdiff_t to long and pass it to printf with %ld.

1999-12-10  Geoff Keating  <geoffk@cygnus.com>

	* config/m68k/m68k.h (CONDITIONAL_REGISTER_USAGE): If we have no
	68881, we have no 68881 registers at all.
	(HARD_REGNO_MODE_OK): It is always OK to put a MODE_FLOAT
	value in a 68881 register if it is available.

1999-12-10  Clinton Popetz  <cpopetz@cygnus.com>

	* config/arm/arm.md (*mulsidi3adddi, *umulsidi3adddi): New patterns
	for long long multiply-accumulate.

1999-12-10  Bernd Schmidt  <bernds@cygnus.co.uk>

	* loop.c (insert_loop_mem): Undo last change.

1999-12-10  David S. Miller  <davem@redhat.com>

	* config/sparc/sparc.c (fp_sethi_p, fp_mov_p, fp_high_losum_p):
	New functions.
	* config/sparc/sparc-protos.h: Add them.
	* config/sparc/sparc.h: Add them to PREDICATE_CODES.
	(EXTRA_CONSTRAINT_BASE): New macro, handling Q, R, and S
	constraints which use those helpers.
	(EXTRA_CONSTRAINT): Use this new macro.
	* md.texi: Update sparc target constraints documentation.
	* config/sparc/sparc.md (clear_sf, clear_sfp, movsf_const_intreg,
	movsf_const_high, movsf_const_lo, movsf_insn): Delete.
	(movsf_insn_novis_liveg0, movsf_insn_novis_noliveg0,
	movsf_insn_vis, movsf_lo_sum, movsf_high): New patterns.
	(movsf high/lo_sum split): Rework for new patterns.
	(movsf expander): Allow storing fp_zero to memory if ! live_g0.

1999-12-09  Gavin Romig-Koch  <gavin@cetus.cygnus.com>

	* c-common.c (c_common_nodes_and_builtins): 
	Create __builtin_ptrdiff_t and __builtin_size_t.

Thu Dec  9 18:05:48 1999  Jeffrey A Law  (law@cygnus.com)

	* pa/elf.h (MAX_OFILE_ALIGNMENT): Define.

Fri Dec 10 00:53:10 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

	* regclass.c (globalize_reg): Re-instate test that allows
	fixed registers to be declared as a variable even after functions
	are defined.

Fri Dec 10 00:52:13 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* i386.md (cpu attribute): Add "athlon".
	(athlon_decode): New attribute.
	(Athlon scheduling units definitions): New.
	(fcmp and shld patterns): Set athlon_decode to "vector".
	* i386.c (athlon_cost): New.
	(m_ATHLON): New.
	(x86_use_leave, x86_push_memory, x86_movx, x86_cmove, x86_deep_branch,
	x86_use_sahf): Set for Athlon.
	(x86_use_fiop): Unset for Athlon.
	(override_options): Define Athlon alignments and "athlon" name.
	(x86_adjust_cost): Penalize AGI and delayed latencies for Athlon.
	* i386.h (TARGET_ATHLON): New.
	(enum processor_type): Add PROCESSOR_ATHLON.
	(TARGET_CPU_DEFAULT_SPEC): Set to "-D__tune_athlon__"
	for CPU_DEFAULT==5
	(TARGET_CPP_CPU_SPECS): Set -D__tune_athlon__ for Athlon.

1999-12-09  Andreas Jaeger  <aj@suse.de>

	* loop.c (record_biv): Declare parameter as int.

	* config/i386/i386-protos.h: Declare long_memory_operand.

1999-12-09  Mark Mitchell  <mark@codesourcery.com>

	* tree.c (copy_node): Do zero the TREE_CHAIN, even for an
	EXPR_WITH_FILE_LOCATION.

Thu Dec  9 11:36:24 MET 1999 Jan Hubicka  <hubicka@freesoft.cz>

	* i386.md (neg??, abs?f, one_cmpl?i): Use nonimmediate_operand
	in expander.

	* flow.c (recompute_reg_usage): Use basic block info to get loop_depth.

	* combine.c (try_combine, distribute_notes): Remove REG_N_REFS
	updating code.

1999-12-09  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/linux64.h (TARGET_DEFAULT): Make -mapp-regs
	default on linux64 again.
	* config/sparc/t-linux64: Add mno-app-regs and non-medlow code
	models for multilibing.
	* genmultilib: Accept | as alternative separator within a set in
	MULTILIB_OPTIONS.

	* config/sparc/sparc.h (PROMOTE_FOR_CALL_ONLY): Define.

	* calls.c (precompute_arguments): Make sure initial_value contains
	value pseudo which CSE expects.
	* cse.c (struct set): New entry orig_src.
	(cse_insn): Set it early on entry, use it for libcall EQUIV note
	replacement.

Wed Dec  8 22:24:15 1999  Richard Henderson  <rth@cygnus.com>

	* flow.c (count_basic_blocks): Don't add (use (const_int 0)) insns.

1999-12-08  Bernd Schmidt  <bernds@cygnus.co.uk>

	* loop.c (insert_loop_mem): Don't hoist volatile mems out of loops.

1999-12-08  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (ultra_cmove_results_ready_p,
	ultra_fpmode_conflict_exists, ultra_flush_pipeline): Typo fix.

	* config/sparc/sparc.h (SPARC_SETHI_P): Don't look at topmost 32 bits
	if TARGET_ARCH32.

	* longlong.h: Merge in changes from glibc.
	Also don't clobber %g2 register in 32bit SPARC assembly, so that
	-mno-app-regs libgcc can be compiled.
	* libgcc2.c: Add defines so that the updated longlong.h
	can be used in libgcc2.a. Also, make sure on most architectures
	(at least on all which have optimized code in longlong.h defined
	for) {SI,W}_TYPE_SIZE is suitable for preprocessor tests.

1999-12-08  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* config/sparc/sol2-64.h: Same as sol2-sld-64.h, except that
	`-m EMULATION' is added to non-default LINK_ARCH_SPECs.
	* configure.in: Use sol2-64.h instead of sol2-sld-64.h if linker
	is GNU ld.
	* configure: Rebuilt.

Wed Dec  8 03:45:40 1999  Richard Henderson  <rth@cygnus.com>

	* alpha.c (secondary_reload_class): For !BWX, sub-simode
	outputs require a register.

1999-12-08  Brendan Kehoe  <brendan@cygnus.com>

	* Makefile.in (FPBIT_FUNCS, DPBIT_FUNCS): Add _sf_to_usi
	_df_to_usi.  Required by some targets, so US_SOFTWARE_GOFAST calls to
	functions like dptoul will be resolved.
	(libgcc2.a): Make sure that the object files from DPBIT are named
	differently (prefix `_dp') from those that would be coming from
	FPBIT.

1999-12-08  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>,  Jakub Jelinek  <jakub@redhat.com>

	* configure.in: When target is sparc* and tm_file contains 64,
	test for 64bit support in assembler.  If not supported, remove
	sparc/t-sol2-64 from target-dependent Makefile fragments.
	(AS_SPARC64_FLAG): Define to the assembler flag for 64bit.
	(HAVE_AS_OFFSETABLE_LO10): Rework test to use these flags.
	(HAVE_AS_REGISTER_PSEUDO_OP): Use config.cache.
	* acconfig.h (AS_SPARC64_FLAG): Added.
	* configure, config.in: Rebuilt.
	* config/sparc/sol2-sld-64.h: Same as sol2.h, if without 64bit
	support.  Use AS_SPARC64_FLAG.

1999-12-07  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (hard_32bit_mode_classes): Mark registers
	suitable for holding OFmode values so that gcc works with complex
	quad long doubles.
	(hard_64bit_mode_classes): Likewise.

	* config/sparc/sparc.md (sethi_di_medlow_embmedany_pic): Fix pattern
	so that it is actually matched.
	(sethi_di_medlow): Likewise.

	* config/sparc/sparc.h (LEGITIMATE_CONSTANT_P): Consider TFmode 0.0L
	as legitimate constant if -mvis.
	* config/sparc/sparc.md (movtf): Likewise.
	(clear_sf): Use const_double_operand.
	(clear_sfp, clear_dfp, clear_tf, clear_tfp): New patterns.

	* config/sparc/sparc.c (sparc_emit_float_lib_cmp): New function.
	* config/sparc/sparc-protos.h (sparc_emit_float_lib_cmp): Prototype.
	* config/sparc/sparc.h (*_LIBCALL): Only use for _Q_*
	routines, _Qp_* cannot be handled like that now.
	(INIT_TARGET_OPTABS): Likewise.
	* config/sparc/sparc.md (cmptf): Accept soft float ARCH64.
	(seq, sne, sgt, sge, slt, sle, beq, bne, bgt, bge, blt, ble): Call
	sparc_emit_float_lib_cmp if ARCH64 and soft float.
	(extendsftf2, extenddftf2, trunctfsf2, trunctfdf2, floatsitf2,
	floatditf2, fix_trunctfsi2, fix_trunctfdi2, addtf3, subtf3, multf3,
	divtf3, sqrttf3): New expanders.
	(extendsftf2_hq, extenddftf2_hq, trunctfsf2_hq, trunctfdf2_hq,
	floatsitf2_hq, floatditf2_hq, fix_trunctfsi2_hq, fix_trunctfdi2_hq,
	addtf3_hq, subtf3_hq, multf3_hq, divtf3_hq, sqrttf3_hq): Rename from
	non-_hq patterns.

	* configure.in (sparc64-*-linux*): Use posix threads if enabled.
	* configure: Rebuilt.
	* config/sparc/linux64.h: Default to -mcpu=ultrasparc if no
	-mcpu is given and we're doing 64bit compiles.

Tue Dec  7 19:22:06 1999  Richard Henderson  <rth@cygnus.com>

	* loop.h (struct induction): Add multi_insn_incr.
	* loop.c (basic_induction_var): New multi_insn_incr argument.
	Set it if we search back through previous insns for the biv.
	(record_biv): New multi_insn_incr argument; fill in struct induction.
	(strength_reduce): Discard an iv with multiple bivs, any of
	which require multiple insns to increment.