[gcc.git] / gcc / ChangeLog

Wed Oct 20 22:57:58 1999  Jeffrey A Law  (law@cygnus.com)

	* sparc.md (movsf_const_intreg): If splitting, length must be > 1.
	(movdf_const_intreg_sp64): Similarly.

	* local-alloc.c (update_equiv_regs): Check the correct insn
	for pre-existing REG_EQUIV notes.

Wed Oct 20 20:41:46 1999  Mark Mitchell  <mark@codesourcery.com>

	* cse.c (cse_end_of_basic_block): Don't return the end of a basic
	block reached by a branch if we're not going to actually process
	this block.

Wed Oct 20 15:18:42 1999  Jim Wilson  <wilson@cygnus.com>

	* integrate.c (integrate_decl_tree): Set DECL_CONTEXT to 0 if this is
	a local extern function declaration.

Wed Oct 20 13:56:01 1999  Richard Henderson  <rth@cygnus.com>

	* i386.c (ix86_expand_prologue): Properly wrap USE around
	reg for CALL_INSN_FUNCTION_USAGE.

Thu Oct 14 18:51:37 1999  Andrew Haley  <aph@cygnus.com>

	* config/mips/mips.md (movdf_internal1a): Allow floating-point
	move between GP_REGs.

Wed Oct 20 15:36:11 1999  Andrew Haley  <aph@cygnus.com>

	* config/arm/thumb.h (GO_IF_LEGITIMATE_ADDRESS): Take account of
	the mode size when finding out if an offset is legal.

Wed Oct 20 06:26:58 1999  Richard Henderson  <rth@cygnus.com>

	* 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.

Wed Oct 20 10:46:41 1999  Richard Earnshaw (rearnsha@arm.com)

	* jump.c (jump_optimize_1): More accurately detect casesi insns.

	* flow.c (merge_blocks_move_predecessor_nojumps): Re-order the basic
	block records so that merge_blocks_nomove will clean up correctly.
	(split_edge): Handle casesi insns.

	* gcc-page.c: Try MAP_ANON if we don't have MAP_ANONYMOUS.

Tue Oct 19 23:43:50 1999  Jeffrey A Law  (law@cygnus.com)

	* pa.md (call, call_value): Do not emit a blockage after restoring
	the PIC register.

Tue Oct 19 17:22:39 1999  Mark Mitchell  <mark@codesourcery.com>

	* c-typeck.c (c_expand_asm_operands): Fix typo.

Tue Oct 19 18:42:58 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

	* arm.c (fpu_rhs_operand): Verify modes.
	(fpu_add_operand): Likewise.
	(di_operand): Likewise.
	(soft_df_operand): Likewise.

Tue Oct 19 15:26:11 1999  Richard Earnshaw  (rearnsha@arm.com)

	* arm.c (arm_return_in_memory): APCS rules state that the elements
	of a structure returned in a register must be 'integer-like'.

1999-10-19  Bruce Korb  <autogen@linuxbox.com>

        * fixinc/Makefile.in: Change the generation rules to run `genfixes'
        in the source tree when the generated targets are out of date
        * fixinc/genfixes: Alter it to run individual fixes for make.
	* fixinc/README: rewrite
	* fixinc/inclhack.def: moved initial comments to README

Tue Oct 19 14:01:34 1999  Nick Clifton  <nickc@cygnus.com>

	* toplev.c (main): Do not generate an error message if an
	unrecognised command line switch is recognisable by another
	language.  If extra_warnings are enabled, then generate a
	warning message instead.

Tue Oct 19 11:41:12 1999  Mumit Khan  <khan@xraylith.wisc.edu>

	* c-pragma.h (PRAGMA_INSERT_ATTRIBUTES): Delete macro.
	(insert_pack_attributes): Delete prototype.

	* c-pragma.c (default_alignment): New static variable.
	(push_alignment): Initialize to current effective alignment.
	(pop_alignment): Use to set new alignment.
	(insert_pack_attributes): Delete function.
	(handle_pragma_token): Set default_alignment as well each time 
	a #pragma pack(<n>) is encountered.

Tue Oct 19 02:03:00 1999  Jeffrey A Law  (law@cygnus.com)

	* reg-stack.c (stack_result): Aggregates are not returned in
	stack registers.

Tue Oct 19 01:26:48 1999  Alasdair Baird <alasdair@wildcat.demon.co.uk>

	* fold-const.c (fold): Fix thinko in x+(-0) -> x transformation.

Mon Oct 18 15:19:41 1999  Richard Henderson  <rth@cygnus.com>

	* basic-block.h (set_block_num): Declare.
	* flow.c (update_life_info): Don't call compute_bb_for_insn
	or free_basic_block_vars.
	* haifa-sched.c (remove_dependence): Conditionalize on HAVE_cc0.
	(insn_orig_block): Remove.
	(INSN_BLOCK): Remove.  Update all callers to use BLOCK_NUM.
	(schedule_block): Keep BLOCK_NUM up-to-date.
	(schedule_insns): Use compute_bb_for_insn.
	* recog.c (split_all_insns): Likewise.
	(peephole2_optimize): Likewise.

Mon Oct 18 18:50:51 1999  Andreas Schwab  <schwab@suse.de>

	* config/m68k/m68k.h (INITIAL_FRAME_POINTER_OFFSET): Add one word
	if the pic register is used.

Mon Oct 18 02:38:46 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

	* c-decl.c (pushdecl): Use TYPE_CONTEXT rather than TREE_PERMANENT.
	(finish_decl): Duplicate test for TREE_ASM_WRITTEN in else branch of
	if that tests TREE_PERMANENT.

Mon Oct 18 01:41:35 1999  Jeffrey A Law  (law@cygnus.com)

	* cse.c (invalidate_for_call): Do not remove memory references from
	the table here.  It's handled elsewhere.

	* haifa-sched.c (add_dependence): Protect references to the
	true dependency cache with #ifdef INSN_SCHEDULING.
	(remove_dependence): Similarly.

	* mn10200.md (outline_epilogue_jump): Embed a (return) to indicate
	to the cfg code that this is a return instruction.
	* mn10300.md (return_internal): Similarly.

	* 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.

Sun Oct 17 11:02:52 1999  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in: Back out previous change.
	
Sun Oct 17 15:22:50 1999  Jeffrey A Law  (law@cygnus.com)

	* pa.c (move_operand): Reject (lo_sum (reg) (unspec ...)).

	* haifa-sched.c (add_dependence): Only check/update the cache
	if it exists.
	(remove_dependence): Likewise.
	(schedule_insns): Only create the true_dependency_cache if the
	average number of instructions in a basic block is very large.

Sun Oct 17 11:02:52 1999  Mark Mitchell  <mark@codesourcery.com>

	* Makefile.in (ggc-common.o): Depend on genrtl.h.
	(ggc-simple.o): Likewise.
	(ggc-page.o): Likewise.

Sun Oct 17 02:09:50 1999  Andrew MacLeod  <amacleod@cygnus.com>

	* basic-block.h (pre_edge_lcm, pre_edge_rev_lcm, compute_available):
	Prototype for exported functions.
	(pre_lcm, pre_rev_lcm): Remove prototypes.
	* gcse.c (compute_ae_kill): Add ae_gen and ae_kill as parameters.
	(compute_available): Move to lcm.c, and change parameter order.
	(one_classic_gcse_pass): Call compute_ae_kill with parameters.
	(pre_insert, s_preds, s_succs, num_preds, num_succs): Delete.
	(gcse_main): No longer call compute_preds_succs.  Rebuild the
	set table after reach pre pass.
	(pre_insert_map, pre_delete_map, edge_list): New.
	(alloc_pre_mem): Allocate edge vectors.
	(free_pre_mem): Delete edge vectors.
	(compute_pre_data): Call new edge based lcm routines.
	(process_insert_insn): New function.
	(insert_insn_end_bb): Use it.
	(pre_edge_insert): New function.
	(pre_insert_copy_insn): Formatting fixes.  Update BLOCK_END as
	needed.
	(pre_insert_copies): Revamp using new edge based lcm outputs.
	(pre_delete): Likewise.
	(one_pre_gcse_pass): Insert & remove fake edges to the exit
	block.
	(compute_code_hoist_vbeinout): New new edge based routines.
	* lcm.c: Remove all the old LCM functions.  Replace with new ones
	that work with the new cfg datastructures and work with edges
	instead of blocks.

Sun Oct 17 00:44:17 1999  Bernd Schmidt  <bernds@cygnus.co.uk>

	* reload.h (struct reload): Add new fields "mode" and "nregs".
	* reload1.c: Change all occurrences of reload_mode and reload_nregs
	to reference the "mode" and "nregs" field within struct reload.

Sat Oct 16 21:50:28 1999  Jeffrey A Law  (law@cygnus.com)

	* haifa-sched.c (true_dependency_cache): New.
	(add_dependence): Use the true dependency cache to avoid expensive
	walks down the LOG_LINKS dependency list.  Add entries to the
	cache as necessary.
	(remove_dependence): Remove entries from the true dependency cache
	as needed.
	(schedule_insns): Allocate and initialize and free the true
	dependency cache.

	* haifa-sched.c (schedule_insns): Do not remove inter-block
	dependencies anymore.

Sat Oct 16 11:19:52 1999  Richard Henderson  <rth@cygnus.com>

	* i386/t-cygwin (winnt.o): Depend on RTL_H and TREE_H.
	* i386/t-winnt: Likewise.

Sat Oct 16 11:11:54 1999  Richard Henderson  <rth@cygnus.com>

	* ggc-page.c (init_ggc): Work around SunOS unaligned mmap bug.

1999-10-16  Manfred Hollstein  <mhollstein@cygnus.com>

	* Makefile.in (LANGUAGES): Omit "proto".
	(clean): Remove stale comment about removing unprotoize.c.

Sat Oct 16 11:29:14 1999  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* protoize.c (safe_read, safe_write): Avoid the gcc extension of
	using arithmetic on void pointers.

Sat Oct 16 02:48:22 1999  Jeffrey A Law  (law@cygnus.com)

	* haifa-sched.c (compute_block_forward_dependencies): Only check
	for notes, deleted insns and duplicates if ENABLE_CHECKING is defined.

Sat Oct 16 00:07:01 1999  Richard Henderson  <rth@cygnus.com>

	* gcse.c (hash_expr_1): Add in MEM_ALIAS_SET.
	(expr_equiv_p): Reject memories with different alias sets.

Fri Oct 15 15:17:29 1999  Greg McGary  <gkm@gnu.org>

	* 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".

Sat Oct 16 13:42:29 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (HF mode patterns):  Add missing modes.

Sat Oct 16 13:37:46 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (movstrqi_small): Utilise parallel move
	instructions.

Sat Oct 16 13:26:47 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (*db_noclobber, 
	*decrement_and_branch_until_zero_noclobber): New patterns and 
	associated splitters.

Sat Oct 16 13:13:15 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (parallel instruction patterns): Rework
	constraints to keep reload happy.

Sat Oct 16 13:03:16 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (*absqi2_noclobber, *negqi2_noclobber,
	*one_cmplqi2_noclobber, *subqi3_noclobber, *andqi3_255_noclobber,
	*andqi3_65535_noclobber, *andnqi3_noclobber, *xorqi3_noclobber):
	Add new patterns and associated post-reload splitters.

Sat Oct 16 12:42:12 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_emit_libcall): Use ggc_alloc_string.

Sat Oct 16 12:34:44 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_rptb_insert): Emit rpts_top pattern
	if appropriate.
	* config/c4x/c4x.md (rpts_top): New pattern and splitter.

Sat Oct 16 12:26:30 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (src_operand):  Check SYMBOL_REF and LABEL_REF
	memory mode.

Fri Oct 15 17:02:09 1999  Jeffrey A Law  (law@cygnus.com)

	* pa.c (move_operand): Rely on memory_address_p to determine the
	validity of non-indexed memory addresses.
	* pa.h (GO_IF_LEGITIMATE_ADDRESS): Allow LO_SUM with a symbolic
	operand in DFmode and SFmode when generating PA2.0 code.

Fri Oct 15 14:25:19 1999  Richard Henderson  <rth@cygnus.com>

	* print-rtl.c (print_rtx): Limit last 'u' change to LABEL_REF.

Fri Oct 15 13:48:45 1999  Richard Henderson  <rth@cygnus.com>

	* mips.c (function_prologue): Fix argument types.
	* mips.md (casesi): Use emit_jump_insn for casesi_internal.
	(casesi_internal): Write to the scratch register.

1999-10-15 11:16 -0700  Zack Weinberg  <zack@bitmover.com>

	* cppexp.c (cpp_parse_escape): Make static.  Change second arg
	to U_CHAR **.
	(parse_charconst): Delete unnecessary cast when calling
	cpp_parse_escape.
	(cpplib.h): Kill prototype of cpp_parse_escape.

Fri Oct 15 11:02:46 1999  Richard Henderson  <rth@cygnus.com>

	Based on patch from Michael Gschwind <mikeg@watson.ibm.com>:
	* unroll.c (unroll_loop): Cast return value of alloca.
	* i370/i370.c: Include function.h and toplev.h.
	(i370_label_scan): Remove c++ commented abort.
	* i370/i370.h (HANDLE_PRAGMA): Takes three arguments.
	(ASM_OUTPUT_LABELREF): Fix TOUPPER/else broken 16 Sept.
	* i370/xm-i370.h (HOST_BITS_PER_LONGLONG): Define.
	* i370/xm-mvs.h, i370/xm-oe.h: Likewise.

Fri Oct 15 03:01:01 1999  Loren Rittle  <ljrittle@acm.org>

	* config/t-freebsd: Do not override USER_H.
	* ginclude/stddef.h: Generalize check for _MACHINE_ANSI_H_.

Fri Oct 15 02:37:28 1999  Alastair J. Houghton <ajh8@doc.ic.ac.uk>
			  Mumit Khan  <khan@xraylith.wisc.edu>

	* c-parse.in (component_decl): Support anonymous struct/union.
	(%expect): Update.
	* c-parse.y: Regenerate.
	* c-parse.c: Likewise.
	* objc/objc-parse.y: Likewise.
	* objc/objc-parse.c: Likewise.
	* c-decl.c (finish_struct): Don't sort the fields.
	(field_decl_cmp): Delete unused function.

Fri Oct 15 01:20:52 1999  Richard Henderson  <rth@cygnus.com>

	* sparc.md (movsf_const_intreg): Revert last constraint change.
	(movdf_const_intreg_sp32): Likewise.

Fri Oct 15 01:47:51 1999  Vladimir Makarov  <vmakarov@loony.cygnus.com>

	* cse.c: Include hashtab.h instead of splay-tree.h
	(struct cse_reg_info): No longer use variant union.  Add new
	field "regno".  All references changed to avoid union.
	(cse_reg_info_used_list, cse_reg_info_used_list_end): New variables.
	(free_cse_reg_info): Remove.
	(hash_cse_reg_info, cse_reg_info_equal_p): New functions.
	(get_cse_reg_info): Revamp to use expandable hash tables instead
	of splay trees.  Initialize new fields in cse_reg_info structure.
	(new_basic_block): Similarly.

Thu Oct 14 23:51:56 1999  Richard Henderson  <rth@cygnus.com>

	* genrecog.c (message_with_line): Prototype.
	(validate_pattern): Pass along the set for the dest, not a flag.
	Fix non-lvalue message.  Don't warn for VOIDmode SET_DEST of CALL.
	Check for PC/CC0 as sources.
	(nodes_identical): Check for children position match before 
	allowing the combination.

	* rtl.c (read_rtx): Track line number across \\\n.

Thu Oct 14 23:50:25 1999  Richard Henderson  <rth@cygnus.com>

	* mips.h (SPECIAL_MODE_PREDICATES): New.
	* mips.md (*) Use nonimmediate_operand not general_operand for outputs.
	(movdi+1, movsi+1): Add output reload constraint.
	(casesi_internal): Likewise.  Fix commentary.
	(return_internal): Use pmode_register_operand.

Thu Oct 14 23:19:34 1999  Richard Henderson  <rth@cygnus.com>

	* 1750a.md (movstrqi): Add missing output reload constraint.
	(call_value): Likewise.
	* a29k.md (cpxxx patterns): Add missing match_operator mode.
	(jmpfdec): Add missing inout reload constraint.
	* elxsi.md (addsi patterns): Add missing output reload constraint.
	(move from sp): Use @ alternates.
	(call_value): No constraint on output.
	* fr30.md (movsi_pop): Add missing output reload constraint.
	(movsf_constant_store): Likewise.
	(splits): Remove constraints.
	(subsi3): Add missing mode.
	* i370.md (cmpstrsi+1): Add missing output reload constraint.
	(call_value): Likewise.
	* i960.md (cmpinc/cmpdec patterns): Add inout reload constraints.
	* m32r.h (PREDICATE_CODES): Add seth_add3_operand.
	* m32r.md (movsicc_internal): Add output reload constraint.
	(movstrsi_internal): Add inout reload constraints.
	* m88k.h (reg_names): Don't declare.
	(SPECIAL_MODE_PREDICATES): New.
	* m88k.md (*): Use register_operand not reg_or_0_operand
	on destinations.
	* mn10200.h (PREDICATE_CODES): New.
	* ns32k.md (ffs pattern): Add output reload constraint.
	* pdp11.md (sob pattern): Add inout reload constraint.
	* sh.md (splits): Remove constraints.
	(indirect_jump_scratch, fpu_switch): Add output reload constraint.
	* v850.md (pattern_is_ok_for_epilogue): Likewise.
	* vax.md (jgequ pattern): Add inout reload constraint.

Fri Oct 15 00:05:00 1999  Jeffrey A Law  (law@cygnus.com)

	* configure.in (djgpp): Revert previous patch.
	* configure: Rebuit.
	* config/i386/djgpp.h: Revert previous patch.

Fri Oct 15 00:00:24 1999  Loren J. Rittle <ljrittle@acm.org>

	* fixinc/inclhack.def: Restore patch lost during last merge of
	"no_bogosity" branch.
	* fixinc/inclhack.sh, fixinc/fixincl.x: Rebuilt.

Thu Oct 14 23:57:56 1999  Gavin Romig-Koch  <gavin@cygnus.com>

	* fixincludes: Add a HPUX 11 fix for inttypes.h.
	* fixinc/inclhack.def: Same.
	* fixinc/inclhack.sh, fixinc/fixincl.sh, fixinc/fixincl.x: Regenerate.

Thu Oct 14 22:51:55 1999  Richard Henderson  <rth@cygnus.com>

	* alpha.h (GO_IF_LEGITIMATE_SIMPLE_ADDRESS): Accept ADDRESSOF
	as the base of a PLUS.

Fri Oct 15 18:36:07 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md:  Define mode for remaining unspec operators.
	* config/c4x/c4x.c (dst_operand):  Use nonimmediate_operand.
	
Thu Oct 14 22:14:23 1999  Richard Henderson  <rth@cygnus.com>

	* pa.md (post_stw+1): Use pmode_register_operand.
	(dcacheflush, icacheflush): Likewise.

	* i386.md (movstricthi_1): Allow r/r.

Thu Oct 14 19:44:08 1999  Jan Hubicka  <hubicka@freesoft.cz>

	* fold-const.c (fold): Convert (or (not arg0) (not arg1))
	to (not (and (arg0) (arg1))). Similary for and.

	* 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.

Fri Oct 15 17:40:11 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (c4x_va_start, c4x_va_arg): Declare.

Fri Oct 15 17:27:17 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (dst_operand): New.
	(PREDICATE_CODES): Update.
	* config/c4x/c4x.h (dst_operand): Declare it.
	* config/c4x/c4x.md:  Define mode for each unspec usage.
	(move patterns):  Use dst_operand predicate instead of src_operand.
	(movqi_update, movqf_update): Delete.

Thu Oct 14 18:48:54 1999  Richard Henderson  <rth@cygnus.com>

	* recog.c (pmode_register_operand): New.
	* recog.h: Declare it.
	* genrecog.c (pred_codes): Likewise.
	(special_mode_pred_table): Likewise.
	(validate_pattern): Don't warn no mode for address_operand.

	* print-rtl.c (print_rtx) [LABEL_REF]: Only do full subexpression
	if the operand is not insn-like.

Thu Oct 14 19:38:42 1999  Jeffrey A Law  (law@cygnus.com)
			  Sylvian Pion <Sylvain.Pion@sophia.inria.fr>

	* fold-const.c (fold): Handle more simplifications allowed by IEEE.

Thu Oct 14 17:30:14 1999  Richard Henderson  <rth@cygnus.com>

	* sparc.md (*): Use {nonimmediate,register}_operand as appropriate
	instead of general_operand in a SET_DEST.  Use const_double_operand
	instead of an explicit test against CONST_DOUBLE.
	(movsf_const_lo): Add missing register mode.
	(goto_handler_and_restore): Add auxiliary test for Pmode.
	(flush): Adjust to use address_operand.
	(return_sf_no_fpu): Add missing output constraint.

Thu Oct 14 17:21:26 1999  Richard Henderson  <rth@cygnus.com>

	* rs6000.md (call_value_indirect_aix32): Use wildcard match_operand
	for call return value.
	(call_value_indirect_aix64, call_value_indirect_nt): Likewise.

Thu Oct 14 13:54:25 1999  Jason Merrill  <jason@yorick.cygnus.com>

	* toplev.c (main): Only warn about options for other languages.
	* collect2.c (main): Pass -w to sub-gcc.

Thu Oct 14 16:27:50 1999  Richard Henderson  <rth@cygnus.com>

	* flow.c (propagate_block): Add call-clobbered registers to
	significant too.

	* flow.c (propagate_block): Use free_EXPR_LIST_list instead of
	zapping mem_set_list.
	(invalidate_mems_from_autoinc): Use free_EXPR_LIST_node.
	(mark_set_1, mark_used_regs): Likewise.

Thu Oct 14 10:51:49 1999  Richard Henderson  <rth@cygnus.com>

	* m68k.md (zero_extendsidi2): Add missing output reload constraint.

Wed Oct 13 00:09:18 1999  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>

	* invoke.texi: Label -Wbad-function-cast, -Wmissing-prototypes,
 	-Wnested-externs, -Wstrict-prototypes, and -Wtraditional as C only
	options. Also add a new item "C-only Warning Options" to the
	option summary.

1999-10-14  Gavin Romig-Koch  <gavin@cygnus.com>

	* libgcc2.c (__do_global_dtors): Protect __deregister_frame_info
	from multiple calls.

Thu Oct 14 04:54:54 1999  Richard Henderson  <rth@cygnus.com>

	* i386.md (call value patterns): Move to the end of the file.
	(prologue_set_got, prologue_get_pc): Use register_operand for op 0.

1999-10-14 Mark Elbrecht <snowball3@bigfoot.com>

	* configure.in (djgpp configuration): Define extra_objects..
	* configure: Rebuilt.
	* config/i386/djgpp.h (CTORS_SECTION_ASM_OP): Define.
	(DTORS_SECTION_ASM_OP): Define.
	(INIT_SECTION_ASM_OP): Define.
	(FINI_SECTION_ASM_OP): Define.
	(DATA_SECTION_ASM_OP): Define.
	(TEXT_SECTION_ASM_OP): Define.
	(EH_FRAME_SECTION_ASM_OP): Define.
	(LINK_COMMAND_SPEC): Remove -Tdjgpp.djl.
	(STARTFILE_SPEC): Add crtbegin.o.
	(ENDFILE_SPEC): Define and add crtend.o. Move argument -Tdjgpp.djl
	to here from LINK_COMMAND_SPEC.
	(DO_GLOBAL_CTORS_BODY): Define.
	(CRTSTUFF_USE_FINI_SECTION): Define
	(HAS_INIT_SECTION): Delete.

Thu Oct 14 05:08:14 1999  Andreas Schwab  <schwab@suse.de>

	* Makefile.in (all.cross): Depend on xcpp$(exeext).

Thu Oct 14 04:00:40 1999  Richard Henderson  <rth@cygnus.com>

	* pa.h (PREDICATE_CODES): New.

	* genrecog.c (validate_pattern): Condense the destination
	non-lvalue message.

Thu Oct 14 03:23:08 1999  Richard Henderson  <rth@cygnus.com>

	* alpha.md (call-1): Supply missing mode for operator.
	(*): Add missing output reload constraints.  Remove constraints
	from define_splits.

	* i386.h (SPECIAL_MODE_PREDICATES): New.
	* i386.md (movstricthi_1): Use nonimmediate_operand for op 0.
	(movqi_1, movdi_1, movdi_2, some splits): Likewise.
	(addsi_lea_3): Add missing mode for op 3.
	(prologue_set_got, prologue_get_pc): Add missing modes.
	(*) Add missing output reload constraints.

Thu Oct 14 03:59:57 1999  Stephane Carrez  <stcarrez@worldnet.fr>

	* stor-layout.c (layout_union): Use HOST_WIDE_INT for const_size;
	check for member bit-size overflow and use var_size if it occurs.
	(layout_record): Use bitsize_int() to define the type size in bits.
	Likewise for computation and assignment to DECL_FIELD_BITPOS.
	(layout_decl): Likewise when assigning to DECL_SIZE.

Thu Oct 14 02:57:05 1999  Richard Henderson  <rth@cygnus.com>

	* genrecog.c (validate_pattern): Typo last change.  Verify
	that output operands have output reloads.

Thu Oct 14 01:49:54 1999  Richard Henderson  <rth@cygnus.com>

	* genrecog.c (special_mode_pred_table): New.
	(NUM_SPECIAL_MODE_PREDS): New.
	(find_operand): New.
	(validate_pattern): New argument `insn'.  Warn for assignment to
	any predicate accepting non-lvalues.  Conditionaly warn for
	match_operand without a mode.  Try much harder to match source
	and destination modes on a set.
	* tm.texi (SPECIAL_MODE_PREDICATES): Document.

Thu Oct 14 02:54:13 1999  Jeffrey A Law  (law@cygnus.com)

	* fold-const.c (fold): Detect rotates built from BIT_XOR_EXPRs.

Thu Oct 14 02:18:19 1999  Marc Espie <espie@cvs.openbsd.org>

	* combine.c (simplify_logical): Recognize xor pattern that encodes
	rotation.

Wed Oct 13 23:23:45 1999  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* rs6000.c (expand_block_move): Use INTVAL, not XINT to access
	alignment.

Wed Oct 13 21:47:18 1999  Richard Henderson  <rth@cygnus.com>

	* ggc-page.c (MAP_FAILED): Provide default.

Wed Oct 13 21:41:59 1999  Richard Henderson  <rth@cygnus.com>

	* sparc.c (symbolic_operand): Verify mode; don't accept CONST_DOUBLE.
	* sparc.h (PREDICATE_CODES): Update.

Wed Oct 13 21:18:17 1999  Richard Henderson  <rth@cygnus.com>

	* alpha.c (some_ni_operand): New.
	* alpha-protos.h: Declare it.
	* alpha.h (PREDICATE_CODES): Update.
	* alpha.md (sXaddq reload insns): Use some_ni_operand 
	for SET_DEST instead of some_operand.

Wed Oct 13 21:04:45 1999  Richard Henderson  <rth@cygnus.com>
			  Jim Wilson  <wilson@cygnus.com>

	* genrecog.c (maybe_both_true_2): Don't compare modes of
	two DT_pred tests.
	(process_tree): Elide peephole2_insns.  Invoke simplify_tests
	after find_afterward.
	(debug_decision_1): Dump next and afterward codes.

Wed Oct 13 20:35:16 1999  Richard Henderson  <rth@cygnus.com>

	* rtl.c (dump_and_abort): Remove.
	(fatal_with_file_and_line): New.
	(fatal_expected_char): New.
	(read_rtx_lineno, read_rtx_filename): New.
	(read_skip_spaces): Track line number.
	(read_name): Use fatal_with_file_and_line.
	(read_rtx): Use fatal_expected_char.  Track line number.
	* rtl.h (read_rtx_filename, read_rtx_lineno): Declare.

	* print-rtl.c (print_rtx): Don't special case LABEL_REF argument
	if it isn't a CODE_LABEL.

	* genattr.c (main): Set read_rtx_filename.
	* genattrtab.c (main): Likewise.
	* gencodes.c (main): Likewise.
	* genconfig.c (main): Likewise.
	* genemit.c (main): Likewise.
	* genextract.c (main): Likewise.
	* genflags.c (main): Likewise.
	* genopinit.c (main): Likewise.
	* genoutput.c (main): Likewise.
	* genpeep.c (main): Likewise.

	* genrecog.c (decision_test.u.insn): Add `lineno'.
	(pattern_lineno, error_count): New variables.
	(message_with_line): New.
	(add_to_sequence): Break out checking code to ...
	(validate_pattern): ... here.  Detect SET_DEST matching CONST_INT.
	(merge_insn): Use message_with_line.
	(make_insn_sequence): Use validate_pattern.  Record insn lineno.
	(main): Set read_rtx_filename, pattern_lineno.  Exit early on error.

Wed Oct 13 22:01:35 1999  J"orn Rennecke <amylaar@cygnus.co.uk>

	* expr.c (store_constructor): Clear union if constructor is empty.

Wed Oct 13 15:19:04 1999  Jim Wilson  <wilson@cygnus.com>

	* config/rs6000/sysv4.h (CC1_SPEC): Fix errors from Jan 19 change.
	Add !endian checks.  Change %{...} to %(...).

Wed Oct 13 13:30:34 1999  Richard Henderson  <rth@cygnus.com>

	* i386.md (*addsi3_cc): Renamed from addcsi3.
	(*addsi3_carry): Renamed from addxsi3.
	(*subsi3_cc): Renamed from subcsi3.
	(*subsi3_carry): Renamed from subxsi3.
	(*xorqi_cc_1): Renamed from xorcqi_1.
	(xorqi_cc_ext_1): Renamed from xorcqi_ext_1.
	* i386.c (ix86_expand_fp_compare): Update for xorqi_cc_ext_1.

Wed Oct 13 13:10:46 1999  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (ggc-common.o): Depend on RTL_H not RTL_BASE_H.
	(ggc-simple.o, ggc-page.o, ggc-none.o, ggc-callbacks.o): Likewise.

1999-10-13  Brendan Kehoe  <brendan@cygnus.com>

	* regmove.c (optimize_reg_copy_3): Make sure P is non-nil as we
	climb up the chain of insns.

Wed Oct 13 10:20:58 1999  Richard Henderson  <rth@cygnus.com>

	* genrecog.c (write_subroutine): Careful for null trees.
	(process_tree): Don't elide empty functions.

Wed Oct 13 10:07:54 1999  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (genrtl.o): Depend on ggc.h.
	* configure.in (valloc): Probe for it.
	(with-gc): Use ggc-page if valloc present.
	* ggc-common.c (ggc_mark_rtx_children): Use ggc_mark_if_gcable.
	(ggc_mark_rtvec_children): New from corpse of ggc_mark_rtvec.
	(ggc_alloc_string): Moved from ggc-page.c.
	* ggc-none.c (ggc_alloc_obj): New.
	(ggc_alloc_rtx, ggc_alloc_rtvec): Remove.
	* ggc-page.c (sys/mman.h): Only include if HAVE_MMAP.
	(struct globals): Likewise for dev_zero_fd.
	(init_ggc): Likewise for it's initialization.
	(ggc_allocated_p): Move careful dereference from ...
	(ggc_lookup_page_table): ... here.  Delete.
	(lookup_page_table_entry): Don't use ggc_lookup_page_table.
	(alloc_anon): Use valloc if no mmap.
	(release_pages): Use free if using valloc.
	(ggc_alloc_obj): Renamed from alloc_obj.
	(ggc_set_mark): Renamed from mark_obj.
	(ggc_mark_if_gcable): Renamed from ggc_mark_string_if_gcable.
	(ggc_alloc_rtx, ggc_alloc_rtvec): Delete.
	(ggc_alloc_tree, ggc_alloc_string, ggc_alloc): Delete.
	(ggc_set_mark_rtx, ggc_set_mark_rtvec): Delete.	
	(ggc_set_mark_tree, ggc_mark_string, ggc_mark): Delete.
	(ggc_collect): Use fp printing instead of our own rounding.
	* ggc-simple.c (IS_MARKED, IGNORE_MARK): Delete.
	(GGC_STRING_MAGIC, GGC_STRING_MAGIC_MARK): Delete.
	(GGC_ANY_MAGIC, GGC_ANY_MAGIC_MARK): Delete.
	(struct ggc_rtx, struct ggc_rtvec, struct ggc_tree): Delete.
	(struct ggc_string, struct ggc_any): Delete.
	(offsetof): Provide default definition.
	(GGC_BALANCE, GGC_ALWAYS_COLLECT, GGC_ALWAYS_VERIFY): New.
	(PTR_KEY): New.
	(struct ggc_mem): New, from corpse of ggc_any.
	(struct ggc_status): Delete.
	(ggc_chain, ggc_allocated_strings, ggc_strings_used): Delete.
	(n_rtxs_collected, n_vecs_collected, n_trees_collected): Delete.
	(n_strings_collected, n_anys_collected): Delete.
	(ggc_alloc_rtx, ggc_alloc_rtvec, ggc_alloc_tree): Delete.
	(ggc_alloc_string, ggc_alloc): Delete.
	(ggc_free_rtx, ggc_free_rtvec, ggc_free_tree): Delete.
	(ggc_free_string, ggc_free_any): Delete.
	(ggc_set_mark_rtx, ggc_set_mark_rtvec, ggc_set_mark_tree): Delete.
	(ggc_compare_addresses, ggc_mark_string): Delete.
	(ggc_mark_string_if_gcable, ggc_mark): Delete.
	(search_data): Delete.
	(struct globals): New.
	(GGC_MIN_EXPAND_FOR_GC, GGC_MIN_LAST_ALLOCATED): New.	
	(tree_insert, tree_lookup): New.
	(ggc_alloc_obj, ggc_set_mark, ggc_mark_if_gcable): New.
	(clear_marks, sweep_objs): New.
	(ggc_collect): Gut.  Use clear_marks, sweep_objs.
	(init_ggc): Set allocated_last_gc.
	(ggc_push_context): Gut.  Use G.context.
	(ggc_pop_context): Likewise.
	(ggc_pop_context_1): New.
	(debug_ggc_tree): New.
	(debug_ggc_balance, tally_leaves): New.
	* ggc.h (ggc_mark_rtvec, ggc_mark_string, ggc_mark): Remove decl.
	(ggc_mark_string_if_gcable): Remove decl.
	(ggc_mark_rtx, ggc_mark_tree): Use ggc_set_mark.
	(ggc_mark_rtvec_children): New.
	(ggc_mark_rtvec, ggc_mark_string, ggc_mark): New.
	(ggc_mark_if_gcable): New decl.
	(ggc_alloc_rtx, ggc_alloc_rtvec): Remove decl.
	(ggc_alloc_tree, ggc_alloc): Likewise.
	(ggc_set_mark_rtx, ggc_set_mark_rtvec, ggc_set_mark_tree): Likewise.
	(ggc_alloc_obj): New decl.
	(ggc_alloc_rtx, ggc_alloc_rtvec): New macros.
	(ggc_alloc_tree, ggc_alloc): Likewise.
	(ggc_set_mark): New decl.
	* rtl.h (struct rtx_def): Remove gc_mark.
	(struct rtvec_def): Likewise.
	* tree.h (struct tree_common): Likewise.

Wed Oct 13 01:44:29 1999  Carol LePage  <carolo@hal.com>

	* configure.in (sparc-hal-solaris2*): Fix xm_file, xm_defines,
	float_format and thread_file definitions.
	* configure: Rebuilt.