changelog.0

GCC

Tue Jul  7 01:03:03 1998  Mumit Khan  <[e-mail]>

	Support for dllimport and dllexport attributes for i386-pe.

	* tree.h (DECL_NON_ADDR_CONST_P): New accessor macro.
	(struct tree_decl): Add non_addr_const_p field.
	* tree.c (staticp): Use.

	* i386/cygwin32.h (CPP_PREDEFINES): Map __declspec(x) to GCC
	attributes.
	(SUBTARGET_SWITCHES): Switches to turn on/off dllimport|export
	attributes. Also accept -mwindows option.
	(VALID_MACHINE_DECL_ATTRIBUTE): New macro.
	(MERGE_MACHINE_DECL_ATTRIBUTE): New macro.
	(REDO_SECTION_INFO_P): New macro.
	(DRECTVE_SECTION_FUNCTION): New macro.
	(drectve_section): Cover function to implement above.
	(SWITCH_TO_SECTION_FUNCTION): New macro.
	(switch_to_section): Covert function to implement above.
	(EXTRA_SECTIONS): Add in_drectve.
	(EXTRA_SECTION_FUNCTIONS): Add in_drectve and switch_to_section.
	(ENCODE_SECTION_INFO): Delete old macro and redefine as a function.
	(STRIP_NAME_ENCODING): Handle new attributes.
	(ASM_OUTPUT_LABELREF): New macro.
	(ASM_OUTPUT_FUNCTION_NAME): New macro.
	(ASM_OUTPUT_COMMON): New macro.
	(ASM_OUTPUT_DECLARE_OBJECT_NAME): New macro.

	* i386/mingw32.h (CPP_PREDEFINES): Map __declspec(x) to GCC
	attributes.

	* i386/winnt.c (i386_pe_valid_decl_attribute_p): New function.
	(i386_pe_merge_decl_attributes): New function.
	(i386_pe_check_vtable_importexport): New function.
	(i386_pe_dllexport_p): New function.
	(i386_pe_dllimport_p): New function.
	(i386_pe_dllexport_name_p): New function.
	(i386_pe_dllimport_name_p): New function.
	(i386_pe_mark_dllexport): New function.
	(i386_pe_mark_dllimport): New function.
	(i386_pe_encode_section_info): New function.
	(i386_pe_unique_section): Strip encoding from name first.

Tue Jul  7 00:50:17 1998  Manfred Hollstein  ([e-mail])

	* libgcc2.c (L_exit): Provide a fake for atexit on systems which
	define ON_EXIT but not HAVE_ATEXIT.

Tue Jul  7 00:44:35 1998  Franz Sirl  <[e-mail]>

	* m68k.md (zero_extend QI to HI): Correctly handle TARGET_5200.

Tue Jul  7 00:36:41 1998  Ulrich Drepper  <[e-mail]>

	* i386.c: Remove random whitespace at end of lines.

	* i386.c (ix86_epilogue): For pentium processors, try to deallocate
	4 or 8 byte stacks with pop instructions instead of an add instruction.

Tue Jul  7 00:30:08 1998  Klaus Kaempf  <[e-mail]>

	* alpha.c: Include tree.h before expr.h.

Mon Jul  6 22:50:48 1998  Jason Merrill  <[e-mail]>

	* c-parse.in (struct_head, union_head, enum_head): New nonterminals.
	(structsp): Use them.  Update files generated from c-parse.in.
	* extend.texi (Type Attributes): Document it.

	* c-decl.c: Add warn_multichar.
	(c_decode_option): Handle -Wno-multichar.
	* c-lex.c (yylex): Check it.
	* c-tree.h: Declare it.
	* toplev.c (lang_options): Add it.
	* invoke.texi: Document it.

Mon Jul  6 22:47:55 1998  J"orn Rennecke  <[e-mail]>

	* reload.c (find_equiv_reg): When looking for stack pointer + const,
	make sure we don't use a stack adjust.

	* reload.c (find_equiv_reg): If need_stable_sp is set,
	check if stack pointer is changed directly.

	* reload1.c (delete_dead_insn): Don't delete feeding insn
	if that insn has side effects.

	* flow.c (find_auto_inc): Clear UNCHANGING bit of register that is
	changed.

	* reload1.c (reload_reg_free_before_p): RELOAD_FOR_OPADDR_ADDR
	precedes RELOAD_FOR_OUTADDR_ADDRESS.

	* gcse.c (hash_scan_insn): New argument IN_LIBCALL_BLOCK.  Changed
	caller.

Mon Jul  6 22:21:56 1998  Kamil Iskra  <[e-mail]>

	* m68k.c (output_scc_di): Use cmpw #0 instead of tstl when
	testing address registers on the 68000.

Mon Jul  6 22:17:19 1998  Alasdair Baird  <[e-mail]>

	* i386.c (is_fp_test): Fix thinko.

	* jump.c (jump_optimize): Check for CONST_INT before using INTVAL.

Mon Jul  6 22:14:31 1998  Richard Henderson  ([e-mail])

	* print-rtl.c (print_rtx): Display the real-value equivalent of
	a const_double when easy.

	* real.h (REAL_VALUE_TO_TARGET_SINGLE): Use a union to pun types.
	Zero memory first for predictability.
	(REAL_VALUE_TO_TARGET_DOUBLE): Likewise.
	* varasm.c (immed_real_const_1): Notice width of H_W_I == double.

	* regclass.c (allocate_reg_info): Initialize the entire reg_data
	virtual array.

Mon Jul  6 22:09:32 1998  Ian Lance Taylor  <[e-mail]>
			  Jeff Law	    <[e-mail]>

	* i386/cygwin32.h: Add some declaration of external functions.
	(ASM_DECLARE_FUNCTION_NAME): Define.
	(ASM_OUTPUT_EXTERNAL, ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
	(ASM_FILE_END): Define.
	* i386/winnt.c (i386_pe_declare_function_type): New function.
	(struct extern_list, extern_head): Define.
	(i386_pe_record_external_function): New function.
	(i386_pe_asm_file_end): New function.

	* cpplib.c (cpp_options_init): Initialize cplusplus_comments to 1,
	matching July 18, 1995 change to cccp.c.  If -traditional then
	disable cplusplus_comments.

Mon Jul  6 21:28:14 1998  Jeffrey A Law  ([e-mail])

	* combine.c (expand_compound_operation): Fix thinko in code to optimize
	(zero_extend:DI (subreg:SI (foo:DI) 0)) to foo:DI.

	* Disable the following change from gcc2.  Not appropriate for egcs:

	Sun Jun  7 09:30:31 1998  Richard Kenner  <[e-mail]>
	* reload.c (find_reloads): Give preference to pseudo that was the
	reloaded output of previous insn.

Mon Jul  6 21:07:14 1998  Kaveh R. Ghazi  <[e-mail]>

	* aclocal.m4 (GCC_FUNC_PRINTF_PTR): Don't define HOST_PTR_PRINTF.
	Instead, define a new macro HAVE_PRINTF_PTR which only signifies
	whether we have the %p format specifier or not.

	* acconfig.h: Delete stub for HOST_PTR_PRINTF, add HAVE_PRINTF_PTR.
	
	* machmode.h (HOST_PTR_PRINTF): When determining the definition,
	check HAVE_PRINTF_PTR to see whether "%p" is okay.

	* mips-tfile.c: Include machmode.h to get HOST_PTR_PRINTF.

	* Makefile.in (mips-tfile.o): Depend on machmode.h.

Mon Jul  6 10:42:05 1998  Mark Mitchell  <[e-mail]>

	* jump.c (duplicate_loop_exit_test): Don't refuse to copy a
	section of code just because it contains
	NOTE_INSN_BLOCK_{BEG,END}.
	* stmt.c (expand_end_loop): Likewise.  Also, don't refuse to
	move CALL_INSNs or CODE_LABELs.  When moving code, don't move
	NOTE_INSN_BLOCK_{BEG,END}.

Mon Jul  6 09:38:15 1998  Mark Mitchell  <[e-mail]>

	* cse.c (CSE_ADDRESS_COST): New macro, based on ADDRESS_COST, but
	dealing with ADDRESSOF.
	(find_best_addr): Use it.

Mon Jul  6 09:27:08 1998  Richard Henderson  <[e-mail]>

	* alpha/vms.h (TRAMPOLINE_TEMPLATE): Revert last change.

Mon Jul  6 09:25:06 1998  Dave Love  <[e-mail]>

	* libgcc2.c (__eprintf): Make args consistent with prototype in
	assert.h.

Mon Jul  6 00:28:43 1998  Mark Mitchell  <[e-mail]>

	* cse.c (cse_insn): When SETting (MEM (ADDRESSOF (X))) to Y,
	don't claim that the former is equivalent to the latter.

Sun Jul  5 23:58:19 1998  Jeffrey A Law  ([e-mail])

	* cse.c (cse_insn): Second arg is an RTX now.  Update all callers.
	(cse_basic_block): Keep track of the current RETVAL insn for a
	libcall instead of just noting that we're in a libcall.

	* combine.c (simplify_comparison): Do not commute a AND into
	a paradoxical SUBREG if not WORD_REGISTER_OPERATIONS.

	* i386/freebsd-elf.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Protect with
	HAVE_GAS_MAX_SKIP_P2ALIGN.
	* i386/linux.h: Likewise.
	
Fri Jul  3 02:33:35 1998  David S. Miller  <[e-mail]>

	* sparc.c (sparc_operand, move_operand,	arith_operand,
	arith11_operand, arith10_operand, arith_double_operand,
	arith11_double_operand, arith10_double_operand, small_int,
	uns_small_int): Recognize CONSTANT_P_RTX.
	(output_sized_memop, output_move_with_extension,
	output_load_address, output_size_for_block_move,
	output_block_move, delay_operand): Remove, has not been
	enabled or referenced for years.
	* sparc.md (movstrsi, block_move_insn): Likewise.
	* sparc.h (PREDICATE_CODES): Define.
	* linux-aout.h (MACHINE_STATE_{SAVE,RESTORE}): Override with
	version which uses getcc/setcc traps to save/restore condition
	codes.
	* linux64.h: Likewise.
	* sunos4.h: Likewise.
	* linux.h: Likewise.
	* sol2.h: Likewise.
	* sun4o3.h: Likewise.

Fri Jul  3 02:28:05 1998  Richard Henderson  <[e-mail]>

	* alpha.c (alpha_initialize_trampoline): Hack around Pmode/ptr_mode
	lossage on VMS.  Reported by [e-mail].
	* alpha/vms.h (TRAMPOLINE_TEMPLATE): Add missing 0.

Thu Jul  2 17:41:14 1998  Nick Clifton  <[e-mail]>

	* config/m32r/m32r.h (MUST_PASS_IN_STACK): Override default
	version.

Thu Jul  2 14:34:48 1998  David Edelsohn  <[e-mail]>

	* expr.h (STACK_SIZE_MODE): New macro.
	* explow.c (allocate_dynamic_stack_space): Use it for
	mode of allocate_stack pattern increment operand.
	* tm.texi (STACK_SAVEAREA_MODE, STACK_SIZE_MODE): Document.
	* md.texi (stack_save_block, ...): Reflect use of macro.

	* rs6000.h (PROMOTE_MODE): Always promote to word_mode.
	(PROMOTE_FUNCTION_ARGS): Define.
	(PROMOTE_FUNCTION_RETURN): Define.
	(FUNCTION_VALUE): Promote to word_mode if smaller.
	Convert to gen_rtx_FOO.
	* rs6000.md (call_indirect): Store doubleword in 64-bit mode.
	Convert to gen_rtx_FOO.
	* rs6000.c: Convert to gen_rtx_FOO.
	
Thu Jul  2 14:16:11 1998  Michael Meissner  <[e-mail]>

	* varray.{c,h}: New files to provide virtual array support.

	* Makefile.in (OBJS): Add varray.o.
	(varray.o): Add new file.
	(REGS_H): New variable for dependencies for files including
	regs.h.  Add varray.h and files it includes.  Change all regs.h
	dependencies to $(REGS_H).

	* toplev.c (x{m,re}alloc): If size is 0, allocate 1 byte.
	(xcalloc): Provide frontend for calloc.
	* {tree,rtl}.h (xcalloc): Add declaration.

	* basic-block.h (REG_BASIC_BLOCK): Convert reg_n_info to be a
	varray.

	* regs.h (toplevel): Include varray.h.
	(reg_n_info): Switch to use a varray.
	(REG_*): Likewise.
	(allocate_reg_info): Change num_regs argument to be size_t.

	* regclass.c (reg_info_data): New structure to remember groups of
	reg_info structures allocated that are to be zeroed.
	({pref,alt}class_buffer): New statics to hold buffers
	allocate_reg_info allocates for {pref,alt}class_buffer.
	(regclass): Use {pref,alt}class_buffer to initialize
	{pref,alt}class.
	(allocate_reg_info): Switch to make reg_n_info use varrays.
	Allocate buffers for the preferred and alter register class
	information.  Change num_regs argument to be size_t, not int.

	* flow.c (reg_n_info): Switch to use varrays.

Thu Jul  2 10:11:47 1998  Robert Lipe  <[e-mail]>

	* install.texi (sco3.2v5): Document new --with-gnu-as flag.
	* config/i386/sco5.h (JUMP_TABLES_IN_TEXT_SECTION): Defined as
	in other targets.
	(USE_GAS): Conditionalize away native assembler usage.
	* config/i386/sco5gas.h: New file.
	* config/i386/t-sco5gas: New file.
	* configure.in (ix86-sco3.2v5*): Use new files if --with-gnu-as

Thu Jul  2 08:20:00 1998  Catherine Moore  <[e-mail]>

	* haifa-sched.c (alloc_EXPR_LIST): Change to use
	unused_expr_list.

Thu Jul  2 14:13:28 1998  Dave Love  <[e-mail]>

	* Makefile.in (install-info): Don't use $realfile.  Ignore
	possible errors from the install-info program.

Thu Jul  2 01:53:32 1998  Alasdair Baird  <[e-mail]>

	* combine.c (simplify_comparison): Apply SUBREG_REG to SUBREGs.

Wed Jul  1 23:06:03 1998  Richard Henderson  <[e-mail]>

	* i386.h (HARD_REGNO_MODE_OK): Kill spurious test.
	(MODES_TIEABLE_P): Tie SImode and HImode.

1998-07-01  Andreas Jaeger  <[e-mail]>

	* invoke.texi (Optimize Options): Fix typo.

Wed Jul  1 22:25:43 1998  Jim Wilson  <[e-mail]>

	* xcoffout.c (xcoffout_begin_function): Call xcoffout_block for
	the zero'th block.

Wed Jul  1 23:12:58 1998  Ken Raeburn  <[e-mail]>

	* h8300.c (print_operand): Delete %L support.
	* h8300.md (branch_true, branch_false): Use %= with a prefix
	instead of %L for local branch labels.

Wed Jul  1 21:27:13 1998  J"orn Rennecke  <[e-mail]>

	* reload1.c (emit_reload_insns): Use proper register classes for
	SECONDARY_INPUT_RELOAD_CLASS / SECONDARY_MEMORY_NEEDED code.

Wed Jul  1 21:17:36 1998  J"orn Rennecke  <[e-mail]>

	* reload.c (find_reloads): If there are multiple
	RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_OUTPUT_ADDRESS reloads for
	one operand, change RELOAD_FOR_INPADDR_ADDRESS /
	RELOAD_FOR_OUTADDR_ADDRESS for all but the first
	RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_OUTPUT_ADDRESS reloads.

Wed Jul  1 17:23:23 1998  J"orn Rennecke  <[e-mail]>

	* regmove.c (fixup_match_2): Check that P has RTX_CLASS 'i' before
	using its PATTERN.

Wed Jul  1 05:04:41 1998  Richard Henderson  <[e-mail]>

	* expr.c (emit_group_load, emit_group_store): Rewrite considering
	the size and alignment of the structure being manipulated.
	* expr.c, calls.c, function.c: Update all callers.
	* expr.h: Update prototypes.
	* cse.c (invalidate): Cope with parallels.

Wed Jul  1 04:22:23 1998  Richard Henderson  <[e-mail]>