mn10200.md (various zero/sign extension patterns): zero and sign extensions which use "sub" clobber cc0.

        * mn10200.md (various zero/sign extension patterns): zero and sign
        extensions which use "sub" clobber cc0.

From-SVN: r20992

From-SVN: r20990

From-SVN: r20989

        * print-rtl.c (print_rtx): Only print fp values when REAL_VALUE_TYPE
        is a double.

From-SVN: r20988

From-SVN: r20987

From-SVN: r20986

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

From-SVN: r20985

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

From-SVN: r20984

	* 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.

From-SVN: r20983

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

From-SVN: r20982

From-SVN: r20981

From-SVN: r20980

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

From-SVN: r20979

From-SVN: r20978

X
	* 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.

From-SVN: r20977

�
	* 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.

Co-Authored-By: Jeffrey A Law <law@cygnus.com>

From-SVN: r20976

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

From-SVN: r20975

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

From-SVN: r20974

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

From-SVN: r20973

        * 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.

From-SVN: r20972

        * 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.

From-SVN: r20971

From-SVN: r20970

From-SVN: r20969

        * 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.

From-SVN: r20968

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

From-SVN: r20967

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

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

From-SVN: r20966

From-SVN: r20965

From-SVN: r20964

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

From-SVN: r20963

From-SVN: r20962

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

From-SVN: r20961

cpplib.c (cpp_options_init): Initialize cplusplus_comments to 1, matching July 18, 1995 change to cccp.c.

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

Co-Authored-By: Jeffrey A Law <law@cygnus.com>

From-SVN: r20960

From-SVN: r20959

8
	* Make-lang.in (f77.stage?): Use mv -f instead of just mv so that
	we can move g77.c.

From-SVN: r20958

�
	* Make-lang.in (f77.stage?): Use mv -f instead of just mv so that
	we can move g77.c.

From-SVN: r20957

        * Makefile.in (clean): Don't remove Makefiles, that is done in
        distclean.

From-SVN: r20956

        Sun Jun  7 09:30:31 1998  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
        * reload.c (find_reloads): Give preference to pseudo that was the
        reloaded output of previous insn.

From-SVN: r20955

	* decl.c (lookup_tag): Use CP_DECL_CONTEXT.
	* tree.c (make_binfo): Fix length.

From-SVN: r20954

Redesign GCC_FUNC_PRINTF_PTR so that it doesn't define HOST_PTR_PRINTF
directly.  Instead, autoconf will only determine whether "%p" works and
its up to machmode.h to base its definition of HOST_PTR_PRINTF on that.
This ensures that machmode.h is always included to get the definition of
HOST_PTR_PRINTF for lossy hosts or cross compiles where "%p" is not
found.
        * 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.

From-SVN: r20953

jump.c (duplicate_loop_exit_test): Don't refuse to copy a section of code just because it contains...

	* 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}.

From-SVN: r20952