changelog.5

早期freebsd实现

	* svr4.h (MD_EXEC_PREFIX):  Added definition.

	* protoize.c [POSIX]: Include dirent.h rather than sys/dir.h.
	(_POSIX_SOURCE): Undef before defining.
	(getpwd):  Change declaration to an `extern'.
	(open):  Add declaration in the #if 0 section along with fprintf.
	(link, unlink, access, execvp):  Add `extern' declarations.
	(strlen):  Don't mention arg type in declaration.
	(main):  Declare `params' as `const char *' to avoid botch when doing
	test-protoize-simple.

Fri May 22 17:15:36 1992  John F Carr  (jfc at Achates.mit.edu)

	* calls.c (expand_call): Allocate stack space for arguments passed
	in registers when OUTGOING_REG_PARM_STACK_SPACE is defined and
	stack space has not been preallocated.

Fri May 22 17:16:55 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* combine.c (simplify_comparison): Try to reduce size of a
	constant by changing comparison code; don't only do for 1 and -1.

	* reload.h (reg_equiv_memory_loc): Declare.
	* reload.c (refers_to_regno_for_reload_p): Use reg_equiv_memory_loc
	instead of reg_equiv_mem and reg_equiv_address; look for constant.
	(reg_overlap_mentioned_for_reload_p): LIkewise.
	Use new function to check for MEM.
	(refers_to_mem_for_reload_p): New function.
	* reload1.c (reg_equiv_memory_loc): No longer static.

Fri May 22 17:15:12 1992  Ron Guilmette  (rfg at ncd.com)

	* Makefile.in (test-protoize-simple):  Only delete files made by this
	target (not the man pages!)
	(test-protoize-simple):  Use -x option to avoid munging getopt.h.
	(test-protoize-simple):  Fixed number of differences message.
	(mostly-clean):  Properly remove all temp files relating to protoize/
	unprotoize.
	(install-common):  Force removal of previously installed g++ and c++
	command files before trying to install new ones.

	* spc-sol2.h:  New file.

	* configure (sparc-*-solaris2*):  New configuration added.

	* x-sparcv4 (X_CFLAGS):  Removed -Bstatic and -dn options.

Fri May 22 15:30:05 1992  Chip Salzenberg  ([e-mail])

	* c-common.c (declare_function_name): Move from c-decl.c.
	Construct function names instead of expecting them as parameters.
	Set TREE_READONLY and other attributes before calling pushdecl.
	* c-decl.c (init_decl_processing, store_parm_decls): Calls changed.
	(declare_function_name): Remove to c-common.c.

	* cp-decl.c (init_decl_processing, store_parm_decls):
	Call declare_function_name.

Fri May 22 12:15:16 1992  Jim Wilson  ([e-mail])

	* sparcv4.h (ASM_OUTPUT_CASE_LABEL): Define.

Fri May 22 11:40:00 1992  Richard Stallman  ([e-mail])

	* x-dpx2200, x-dpx2300 (CFLAGS): Definition deleted.

	* c-decl.c, cp-decl.c (pushdecl): No shadow warnings if DECL_IGNORED_P.

	* c-decl.c (declare_function_name):
	Change names to __FUNCTION__ and __PRETTY_FUNCTION__

	* vax.h (PRINT_OPERAND): In M case, don't complement after subtract 1.

	* c-lex.c (yylex): Use pedwarn for overflow warnings.
	Pedwarn if constant doesn't fit its type.

Fri May 22 13:32:39 1992  Chip Salzenberg  ([e-mail])

	* xcoffout.h (DBX_TYPE_DECL_STABS_CODE): Was DBX_DECL_STABS_CODE.

Fri May 22 08:31:16 1992  Torbjorn Granlund  ([e-mail])

	* longlong.h (all machines): Define UMUL_TIME and UDIV_TIME.
	Auxiliary formatting changes.
	(header): Define __CLOBBER_CC and __AND_CLOBBER_CC.
	(__sparc__ macros): Use them.
	(__hppa__ add_ssaaaa,sub_ddmmss): Accept zero using `M' constraint.
	(__hppa__ umul_ppmm): Define if _PA_RISC1_1.
	(__mc88110__ umul_ppmm,udiv_qrnnd): New.
	(__pyr__ umul_ppmm): Rewrite.
	(default count_leading_zeros): Make it work for 64 bit longs.

Fri May 22 06:27:31 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* cse.c (cse_insn): Invalidate a volatile destination.

	* expmed.c (expand_divmod): Correctly handle volatile operands.

Fri May 22 06:26:50 1992  Chip Salzenberg  ([e-mail])

	* rs6000.h (ASM_DECLARE_FUNCTION_NAME):  Use new function
	xcoffout_declare_function.
	* rs6000.c (output_epilog):  Shorten internal label.
	(output_toc, output_function_profiler):  Likewise.
	* xcoffout.c (xcoffout_declare_function):  New function, created
	to localize knowledge of end-of-function internal label.
	(xcoffout_end_epilogue): Shorten internal label.

Thu May 21 15:31:42 1992  Jim Wilson  ([e-mail])

	* reorg.c (relax_delay_slots): Clear INSN_FROM_TARGET_P when
	remove insns from a delay slot.

Thu May 21 13:54:15 1992  Richard Stallman  ([e-mail])

	* reload.c (find_reloads):
	Don't abort for % in last operand in asm_operands.

	* alloca.c: Make symlink to master copy.

	* stmt.c (expand_asm_operands): Count nclobbers properly.

	* explow.c (allocate_dynamic_stack_space): Call mark_reg_pointer.

	* c-parse.y (stmt, WHILE case): Start loop *after* parsing end test.
	(do_stmt_start): Broken out from DO rule.
	(stmt, DO case): Use that.
	Add error-handler rule for parse error in end test.

	* sparc.h (ADDITIONAL_REGISTER_NAMES): Support `cc'.

	* c-lex.c (yylex): Pedwarn if `f' constant exceeds range of `float'.
	Just once even if `f' appears twice.
	This and the like warning for `double' are only if -pedantic.

Thu May 21 08:46:30 1992  Jim Wilson  ([e-mail])

	* Makefile.in (STAGESTUFF): Add stamp-proto.

Thu May 21 04:04:33 1992  Richard Stallman  ([e-mail])

	* svr3.h (LOCAL_LABEL_PREFIX): Override as a period.
	(ASM_OUTPUT_INTERNAL_LABEL, ASM_GENERATE_INTERNAL_LABEL):
	Use LOCAL_LABEL_PREFIX.
	* dpx2.h (LOCAL_LABEL_PREFIX): Definition deleted.
	* tower-as.h (LOCAL_LABEL_PREFIX): Override as empty.

Wed May 20 23:29:15 1992    (Eric Youngdale at [e-mail])

	* config-gcc.com: Take care of situation if sources are NFS mounted.

Wed May 20 14:35:10 1992  Richard Kenner  (kenner at vlsi1.ultra.nyu.edu)

	* jump.c (jump_optimize): Add additional validation check to
	case that detects "if (foo) bar++;".

Wed May 20 13:18:09 1992  Tim Moore  ([e-mail])

	* pa.md : Changed "xy" constraints to "x" constraints.
	(movsi+6): Let "r" registers match too. Add define_split to change
	into 2 insns if needed.
	(decrement_and_branch_until_zero): New pattern.
	* pa.h (FUNCTION_ARG_PASS_BY_REFERENCE): Fix for TYPE == 0.
	(REGISTER_MOVE_COST): Do stuff for SNAKE_FP_REGS.
	(PRINT_OPERAND_ADDRESS): Write CONST_INT case.

Wed May 20 00:04:55 1992  Richard Stallman  ([e-mail])

	* ns32k.h (NS32K_DISPLACEMENT_P): Fix typo.
	* ns32k.md (extzv-1): New pattern for extracting from SImode.

	* c++: -M suppresses -lg++.

	* svr3.h (DO_GLOBAL_CTORS_BODY): Flush spurious #endif.

	* reload1.c (gen_input_reload): New arg IS_ASM.  Can now return 0.
	(emit_reload_insns): Pass new arg.  Error if it returns 0.

	* configure: Use $cpu_type to default $tm_file.

	* configure, config.sub: Correct we32 to we32k.
	* configure (decstation-dec): Deleted--doesn't fit as machine alias.
	(we32k): Add company default.
	(fx2800): This is a machine alias, not a company default.

	* configure (i386-*-bsd*, we32-att-sysv*, m68k-crds-unos*):
	Missing *'s added at ends of config names.

	* c-typeck.c (convert_arguments): Use warn_for_assignment to handle
	-Wconversion.  Fix typo in width-mismatch test.

	* svr3.h (ASM_GENERATE_INTERNAL_LABEL): Put a * at the front.

Tue May 19 21:53:05 1992  Richard Stallman  ([e-mail])

	* Makefile.in (clean): Add -f in rm *.dvi.

	* x-dpx2200, x-dpx2300 (CFLAGS): Make value conditional on CC.

	* genattrtab.c (simplify_test_exp, evaluate_eq_attr):
	Delete tests of current_alternative_string; they caused bugs.

	* cross-test.c: New file.
	* Makefile.in (cross-test, cross-test.o): New targets.
	(all.cross): Depend on cross-test.

	* c-decl.c (declare_function_name): Fix bug in previous change.

Tue May 19 19:57:39 1992  Jim Wilson  ([e-mail])

	* i960.h (FUNCTION_ARG_BOUNDARY): Return mode's alignment if type 0.

	* calls.c (expand_call): Set MEM_IN_STRUCT_P for aggregate return
	values in memory.

	* function.c (locate_and_pad_parm): Use MAYBE_REG_PARM_STACK_SPACE
	if defined.
	* i960.c (i960_function_arg_advance): Put MUST_PASS_IN_STACK
	parameters on the stack.
	(i960_function_arg): Likewise.

	* m68k.md (zero_extendqisi2+1): Add condition to exclude MEM/MEM
	case which would require reloading.

	* unroll.c: Delete incorrect Feb 26 1992 change.  
	(copy_loop_body): For combined address givs, scale giv_inc by the
	two giv's multiplicative factors if they are different.

	* i960.md (zero_extendqisi2): Add comment.

	* combine.c (apply_distributive_law): Don't distribute subregs
	which change the mode class.

	* fixincludes: Fix memory.h for SunOS.

	* sparc.h (EXTRA_CC_MODES, EXTRA_CC_NAMES): Add CCFPEmode, for
	compares which should generate exceptions for qNaNs.
	(SELECT_CC_MODE): Use CCFPEmode for non EQ/NE FP compares.
	* sparc.c (normal_comp_operator): Handle CCFPEmode.
	(C_MODES, output_cbranch): Likewise.
	* sparc.md (cmpdf, cmpsf): Modify patterns to use fcmpe for CCFPE
	mode, and fcmp for CCFP mode.

	From rfg:
	* sparc.h: Declare output_move_quad, output_fp_move_quad and
	output_floatsitf2.
	* sparc.c (mem_aligned_8): New function.
	(output_move_double): Clean up a little.  Call mem_aligned_8.
	Load operands[] into register variables for efficiency.
	(output_move_quad, output_fp_move_quad): New functions.
	(output_floatsitf2): New function.
	(print_operand): Support 'S' and 'T'.
	* sparc.md (cmptf, movtf, extendsftf2, extenddftf2, trunctfsf2,
	trunctfdf2, floatsitf2, fix_trunctfsi2, addtf3, subtf3, multf3,
	divtf3, negtf2,	abstf2, sqrttf2):  New patterns added for TFmode
	support.

Tue May 19 19:34:10 1992    Ron Guilmette  (rfg at ncd.com)

	* i386v4.h (DBX_REGISTER_NUMBER):  Fixed DWARF numbers for
	x86 floating-point registers.

Tue May 19 15:30:32 1992  Mats Lofkvist  ([e-mail])

	* fixincludes: Fix return type of malloc and friends.

Tue May 19 13:30:16 1992  Richard Stallman  ([e-mail])

	* config.sub (iris4d): If $os is some kind of Irix, don't clobber it.
	Make the default -irix4.

	* c-decl.c (declare_function_name): New arg printable_name.
	Declare __PRINTABLE_NAME__.
	(init_decl_processing, store_parm_decls): Pass the new arg.

Tue May 19 09:50:01 1992  Tom Wood  ([e-mail])

	* m88k.c (output_options): Check profile_block_flag.
	(m88k_layout_frame): Ditto.
	(output_function_block_profiler): Save and restore the parameter
	registers when calling __bb_init_func.
	(output_block_profiler): Use @LPBX2.
	
	* m88k.h (CASE_VECTOR_INSNS): Choose a table of branch
	instructions or addresses.  The latter is a win for the m88110.
	(ASM_OUTPUT_CASE_END): Nothing needed for table of addresses.
	(ASM_OUTPUT_ADDR_VEC_ELT): Use "br" or "word".
	* m88k.md (casesi, casesi_jump): Updated.

	* m88k.md (m88110 function units): Count in half cycles.

	* m88k.md (call insns): Clobber rather than use r1.

	* m88k.c (m88k_layout_frame): Fix m88k_fp_offset for zero case.

Mon May 18 10:38:20 1992  Michael Meissner  ([e-mail])

	* iris.h (DEFAULT_SIGNED_CHAR): Define as 0 for compatibility with
	IRIS defaults.  Patch from [e-mail] (Kevin Dalley).

	* xm-irix4.h (HAVE_VPRINTF): Define.

	* x-iris (CLIB): Add -lmalloc.

	* mips.md (fp_comp functional unit): Use adder functional unit
	instead to more closely model MIPS behavior and make genattrtab
	faster.
	(transfer functional unit): Use memory functional unit instead.
	(sqrt functional unit): Use divide functional unit instead.
	(branch_zero): If CSE has folded a value which is constant, and
	the jump would be omitted, do not eliminate putting a jump there.
	This causes bad code to be generated when using gas, since the
	previous instruction may be a load which had it's delay slot
	filled by the 'branch', and the next instruction depends on the
	value loaded.

	* mips-at.c (whole file): Delete, no longer needed.

	* mips-at.md (whole file): Delete, no longer needed.

	* Makefile.in (stamp-attrtab): Remove $(srcdir) in front of
	$(PREMADE_ATTRTAB) so that MIPS builds can be done in
	subdirectories.

	* t-decrose (PREMADE_ATTRTAB*): Don't define, genattrtab is now fast
	enough that we don't have to save a pre-made genattrtab.c.
	(LIBGCC1): Use libgcc1.null rule to turn off building libgcc1.a.

	* t-decstatn (PREMADE_ATTRTAB*): Don't define, genattrtab is now fast
	enough that we don't have to save a pre-made genattrtab.c.
	(LIBGCC1): Use libgcc1.null rule to turn off building libgcc1.a.

	* t-mips (PREMADE_ATTRTAB*): Don't define, genattrtab is now fast
	enough that we don't have to save a pre-made genattrtab.c.
	(LIBGCC1): Use libgcc1.null rule to turn off building libgcc1.a.

	* mips.h (ASM_OUTPUT_CONSTRUCTOR,ASM_OUTPUT_DESTRUCTOR): Define.
	Patch from [e-mail].
	(DEFAULT_SIGNED_CHAR): Don't define if already defined.

Mon May 18 01:34:38 1992  Kayvan Sylvan    ([e-mail])

	* svr3.h (DO_GLOBAL_CTORS_BODY): Start at end, if STACK_GROWS_DOWNWARD.

Mon May 18 01:34:38 1992  Richard Stallman  ([e-mail])

	* Makefile.in (protoize.o, unprotoize.o):
	Do nothing, but depend on stamp-proto.
	(stamp-proto): New target.  Compile both protoize.o and unprotoize.o.

	* configure (ns32k-ns-genix): Commented out.