In gcc/java:
* class.c (make_class_data): Push initial value for "arrayclass".
* decl.c (init_decl_processing): Add new class field "arrayclass".

In libjava:
* java/lang/Class.h (_Jv_InitClass): Use __builtin_expect.
(_Jv_NewArrayClass): Renamed from _Jv_FindArrayClass.
(_Jv_GetArrayClass): New inline function.
(arrayclass): New field.
* prims.cc (_Jv_NewObjectArray): Use _Jv_GetArrayClass. Don't use
_Jv_GetArrayElementFromElementType.
(_Jv_NewPrimArray): Ditto.
(_Jv_PrimClass constructor): Initialize "depth", "ancestors", and
"idt" for completeness. Initialze "arrayclass" using _Jv_NewArrayClass.
Set Modifier::ABSTRACT.
* java/lang/natClassLoader.cc (_Jv_NewClass): Initialize "arrayclass".
(_Jv_NewArrayClass): Renamed from _Jv_FindArrayClass. Now void.
Now synchronized. Array classes are now referenced from
elementClass->arrayclass. Don't use _Jv_FindClassInCache.
Set array classes' accessibility flags correctly. Optimize so that
all array classes share the same IDT.
* java/lang/reflect/natArray.cc (newInstance): Use _Jv_GetArrayClass.
* java/lang/reflect/natMethod.cc (_Jv_GetTypesFromSignature): Ditto.
* java/lang/natClass.cc (_getFields): Increment offset. Prevent fields
in superclasses from overwriting classes own fields.
(_Jv_IsAssignableFrom): Check for NULL source idt instead of calling
Modifier::isAbstract().
(null_idt): New static field.
(_Jv_PrepareConstantTimeTables): Optimize case where class implements
no interfaces.
(_Jv_IndexOf): Made inline.
* boehm.cc (_Jv_MarkObj): Mark "arrayclass" field.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38808 138bc75d-0d04-0410-961f-82ee72b054a4

Fix for PR java/1586:
* Makefile.in: Rebuilt.
* Makefile.am (AUTOMAKE_OPTIONS): Added no-dependencies.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38807 138bc75d-0d04-0410-961f-82ee72b054a4

    * jump.c (simplejump_p): Revert last change.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38806 138bc75d-0d04-0410-961f-82ee72b054a4

    * cppinit.c (init): Rename init_library.
        (cpp_create_reader): Update.
        * gcc.c (cpp_options): If -o given, use it as the target of
        any -M options.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38805 138bc75d-0d04-0410-961f-82ee72b054a4

2001-01-08  Benjamin Kosnik  <bkoz@redhat.com>

reported by Chris G. Demetriou <cgd@sibyte.com>
* configure.in: Change -linux-* to -linux*.
* configure: Regenerate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38804 138bc75d-0d04-0410-961f-82ee72b054a4

* arm.c (arm_arch5e): New variable.
(all_cores): XScale is a 5TE device.
(arm_override_options): Set arm_arch5e.
(arm_init_builtins): __builtin_prefetch is in arch5e.
* arm.h (arm_arch5e): Declare it.

* arm.h (PREDICATE_CODES): Add arm_hard_register_operand.

* arm.md (define_constants): Add defines for UNSPEC and
UNSPEC_VOLATILE insns.  Update all users.
(define_constants): Add constants for IP_REGNUM, SP_REGNUM, PC_REGNUM.
* arm.c (multi_register_push, note_invalid_constants)
(emit_multi_reg_push, emit_sfm, expand_prologue): Use constants.
* arm.h (SP_REGNUM, IP_REGNUM, PC_REGNUM): Delete defines.
(STACK_POINTER_REGNUM): Define in terms of SP_REGNUM.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38803 138bc75d-0d04-0410-961f-82ee72b054a4

* jump.c (jump_optimize_1): Use reversed_comparison_code
instead of can_reverse_comparison_p.
(jump_back_p): Likewise.
(invert_exp_1): Likewise.
(thread_jumps): Likewise.
* simplify-rtx.c (simplify_unary_operation): Likewise.
(simplify_ternary_operation): Likewise.
* cse.c (find_comparison_args): Convert to use
can_reverse_comparison_p.
(record_jump_equiv): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38802 138bc75d-0d04-0410-961f-82ee72b054a4

cp:
* cp-tree.h (lang_decl_flags): Rename defined_in_class to
initialized_in_class.
(DECL_DEFINED_IN_CLASS_P): Rename to ...
(DECL_INITIALIZED_IN_CLASS_P): ... here, to reflect true meaning.
* decl.c (duplicate_decls): Preseve DECL_INITIALIZED_IN_CLASS_P.
(cp_finish_decl): Adjust for DECL_INITIALIZED_IN_CLASS_P.
* pt.c (check_default_tmpl_args): Adjust for
DECL_INITIALIZED_IN_CLASS_P.
(instantiate_class_template): Likewise.
(instantiate_decl): Check DECL_INITIALIZED_IN_CLASS_P.

* class.c (finish_struct): Constify saved_filename.
testsuite:
* g++.old_deja/g++.pt/instantiate12.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38801 138bc75d-0d04-0410-961f-82ee72b054a4

* arm.h (HARD_REGNO_RENAME_OK): Delete.
(EPILOGUE_USES): Define.
(INITIAL_ELIMINATION_OFFSET): Current prologue code does not
automatically stack the LR if it isn't live.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38800 138bc75d-0d04-0410-961f-82ee72b054a4

* i386.c (ix86_expand_int_movcc): Take care to reverse fp conditions
properly.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38799 138bc75d-0d04-0410-961f-82ee72b054a4

cp:
* class.c (duplicate_tag_error): Adjust diagnostic.
(finish_struct): Locally set location to start of struct.
* decl.c (fixup_anonymous_aggr): Use cp_error_at.
testsuite:
* g++.old-deja/g++.benjamin/15309-1.C: Expect diagnostic at
start of structs.
* g++.old-deja/g++.benjamin/15309-2.C: Likewise.
* g++.old-deja/g++.brendan/crash17.C: Likewise.
* g++.old-deja/g++.brendan/crash29.C: Likewise.
* g++.old-deja/g++.brendan/crash48.C: Likewise.
* g++.old-deja/g++.brendan/ns1.C: Likewise.
* g++.old-deja/g++.brendan/warnings1.C: Likewise.
* g++.old-deja/g++.bugs/900205_04.C: Likewise.
* g++.old-deja/g++.bugs/900514_03.C: Likewise.
* g++.old-deja/g++.eh/spec6.C: Likewise.
* g++.old-deja/g++.jason/crash3.C: Likewise.
* g++.old-deja/g++.law/ctors11.C: Likewise.
* g++.old-deja/g++.law/ctors17.C: Likewise.
* g++.old-deja/g++.law/ctors5.C: Likewise.
* g++.old-deja/g++.law/ctors9.C: Likewise.
* g++.old-deja/g++.mike/ambig1.C: Likewise.
* g++.old-deja/g++.mike/net22.C: Likewise.
* g++.old-deja/g++.mike/p3538a.C: Likewise.
* g++.old-deja/g++.mike/p3538b.C: Likewise.
* g++.old-deja/g++.mike/virt3.C: Likewise.
* g++.old-deja/g++.niklas/t128.C: Likewise.
* g++.old-deja/g++.other/anon4.C: Likewise.
* g++.old-deja/g++.other/using1.C: Likewise.
* g++.old-deja/g++.other/warn3.C: Likewise.
* g++.old-deja/g++.pt/t37.C: Likewise.
* g++.old-deja/g++.robertl/eb69.C: Likewise.
* g++.old-deja/g++.robertl/eb71.C: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38798 138bc75d-0d04-0410-961f-82ee72b054a4

Oops, wrong email on previous changelog

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38797 138bc75d-0d04-0410-961f-82ee72b054a4

cp:
* decl.c (struct binding_level): Adjust class_shadowed comments
to reflect reality.
(push_class_level_binding): Ajust comments to reflect reality.
Set IDENTIFIER_CLASS_VALUE when replacing an existing binding.
Don't set TREE_VALUE on the class_shadowed list.
testsuite:
* g++.old-deja/g++.other/lookup16.C: Remove XFAIL.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38796 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38795 138bc75d-0d04-0410-961f-82ee72b054a4

* Makefile.am: Use the new "-M -MF" option for generating dependencies
from the c++ compiler.
* Makefile.in: Rebuilt.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38794 138bc75d-0d04-0410-961f-82ee72b054a4

* libjava.compile/SuperConstr.java: New test case.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38793 138bc75d-0d04-0410-961f-82ee72b054a4

* decl2.c (grokfield): Don't accept `asm' specifiers for
non-static data members.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38792 138bc75d-0d04-0410-961f-82ee72b054a4

* ggc-page.c (max_alignment): New structure.
(MAX_ALIGNMENT): New macro.
(init_ggc): Use it to round up the sizes in the
extra_order_size_table.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38791 138bc75d-0d04-0410-961f-82ee72b054a4

2001-01-07  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

* config/rs6000/rs6000.h (EPILOGUE_USES): New, mark link register
after reload.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38790 138bc75d-0d04-0410-961f-82ee72b054a4

001-01-07  Anthony Green  <green@redhat.com>

* Makefile.am (texinfo): Add texinfo target for generating texinfo
        documentation.
* Makefile.in: Rebuilt.

* scripts/TexinfoDoclet.java: New file.

* doc/java-applet.texi, doc/java-lang-reflect.texi,
doc/java-awt-color.texi, doc/java-lang.texi,
doc/java-awt-datatransfer.texi, doc/java-math.texi,
        doc/java-awt-event.texi, doc/java-net.texi,
doc/java-awt-geom.texi, doc/java-security-spec.texi,
doc/java-awt-image.texi, doc/java-security.texi,
doc/java-awt-peer.texi, doc/java-sql.texi, doc/java-awt.texi,
doc/java-text.texi, doc/java-beans-beancontext.texi,
        doc/java-util-jar.texi, doc/java-beans.texi,
doc/java-util-zip.texi, doc/java-io.texi, doc/java-util.texi,
doc/java-lang-ref.texi: New files.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38789 138bc75d-0d04-0410-961f-82ee72b054a4

* builtins.def (BUILT_IN_FPRINTF): New entry.

* c-common.c (c_expand_builtin_fprintf): New function.
(init_function_format_info): Handle __builtin_fprintf.
(c_common_nodes_and_builtins): Declare fprintf/__builtin_fprintf.
(c_expand_builtin): Handle BUILT_IN_FPRINTF.

* c-decl.c (duplicate_decls): Adjust comment.

* extend.texi (fprintf): Document new builtin.

testsuite:
* gcc.c-torture/execute/stdio-opt-3.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38788 138bc75d-0d04-0410-961f-82ee72b054a4

* expr.c (cplus_expand_expr): Don't reset `target'.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38787 138bc75d-0d04-0410-961f-82ee72b054a4

    * jump.c (simplejump_p): Recognize any single_set jump
        of the proper form.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38786 138bc75d-0d04-0410-961f-82ee72b054a4

    * config/t-linux (SHLIB_INSTALL): Double quote slibdir;
        fix typo in rm -f.
        * config/t-aix43 (SHLIB_INSTALL): Likewise.
        * config/alpha/t-osf4 (SHLIB_INSTALL): Likewise.
        (SHLIB_LINK): Create links for the soname.
        * config/mips/t-iris6: Likewise.
        * config/sparc/t-slibgcc: Likewise.
        * config/sparc/t-slibgcc-sld: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38785 138bc75d-0d04-0410-961f-82ee72b054a4

    * configure.in (slibdir): Accept an --with-slibdir option.
        Use "test" not "[" in configure.  Default to $(libdir).

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38784 138bc75d-0d04-0410-961f-82ee72b054a4

* config/i386/i386.c (constant_call_address_operand): Accept
(const (plus (symbol_ref) (const_int))).
* config/i386/i386.h (PREDICATE_CODES): Add CONST for
constant_call_address_operand.

* gcc.c-torture/compile/20010107-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38783 138bc75d-0d04-0410-961f-82ee72b054a4

* libgcc2.h (W_TYPE_SIZE): Fix case where MIN_UNITS_PER_WORD == 1
and LONG_LONG_TYPE_SIZE > 32.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38782 138bc75d-0d04-0410-961f-82ee72b054a4

Fix bug in URLConnection and correct javadoc annotations in StringBuffer.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38781 138bc75d-0d04-0410-961f-82ee72b054a4

* jump.c (reversed_comparison_code_parts): Fix typo introduced by
the previous change.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38780 138bc75d-0d04-0410-961f-82ee72b054a4

* jump.c (reversed_comparison_code_parts, reversed_comparison_code):
New.
(can_reverse_comparison_p): Rewrite to use reversed_comparison_code.
(reverse_condition_maybe_unordered): Abort on unsigned comparisons.
* rtl.h (reversed_comparison_code_parts, reversed_comparison_code):
Declare.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38779 138bc75d-0d04-0410-961f-82ee72b054a4

    * fix-header.c (read_scan_file): s/pfile/scan_in/.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38778 138bc75d-0d04-0410-961f-82ee72b054a4

    * c-lang.c (c_post_options): Call cpp_post_options.
        * cppmain.c (main): Similarly.
        * fix-header.c (read_scan_file): Similarly.
        * cp/decl2.c (cxx_post_options): Similarly.
        * objc/objc-act.c (objc_post_options): Similarly.
        * cppinit.c (cpp_start_read): Move option consistency checks
        to cpp_post_options.  Don't call init_dependency_output.
        If needed, add default target and main file dependency.
        (OPT_MD, OPT_MMD): Remove.
        (OPT_MF): New.
        (cpp_handle_option): Update for OPT_* changes.
        (cpp_post_options): New.
        (init_dependency_output): Command line -MF overrides environment
        variables.  Don't set default target etc.  Suppress output
        if dependencies are going to stdout.
        (print_help): Update.
        * cpplib.h (cpp_post_options): New.
        * gcc.c (cpp_options): Update for -MD, -MMD, -MF.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38777 138bc75d-0d04-0410-961f-82ee72b054a4

* jump.c (comparison_dominates_p): Support unordered compares.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38776 138bc75d-0d04-0410-961f-82ee72b054a4

* simplify-rtx.c (simplify_relational_operation): Always simplify
ORDERED and UNORDERED when FLAG_FAST_MATH.  Handle properly UNLE
and UNGE.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38775 138bc75d-0d04-0410-961f-82ee72b054a4

* combine.c (combine_simplify_rtx): Recognize the unordered compares.
(nonzero_bits): Likewise.
(simplify_comparison): Likewise.
(num_sign_bit_copies): Likewise; return more sane value depending
on STORE_FLAG_VALUE.
(known_cond): Do not assume EQ to be always true for equivalent
operands.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38774 138bc75d-0d04-0410-961f-82ee72b054a4

* cse.c (fold_rtx): Handle unordered comparisons.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38773 138bc75d-0d04-0410-961f-82ee72b054a4

* rtlanal.c (set_of_1): New static function.
(reg_set_last_1, reg_set_p_1, reg_set_reg, reg_set_flag,
 reg_set_last_unknown, reg_set_last_value, reg_set_last_first_regno,
 reg_set_last_last_regno): Remove.
(set_of): New global function.
(set_of_data): New structure.
(reg_set_p, reg_set_last): Revamp for set_of.
* rtl.h (set_of): New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38772 138bc75d-0d04-0410-961f-82ee72b054a4

* c-common.c (c_common_nodes_and_builtins): Add _Exit builtin.
* extend.texi: Document _Exit builtin.

testsuite:
* gcc.c-torture/execute/builtin-noret-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38771 138bc75d-0d04-0410-961f-82ee72b054a4

    * (initialize, initialize_builtins,
        initialize_dependency_output, initialize_standard_includes):
        Rename s/initialize/init. Update.
        (init_dependency_output): Move to after
        cpp_handle_options, the correct location temporally at least.
        (opt_comp): Move next to init (), its caller.  Fix prototype.
        (init): Make "initialized" local scope.
        (cpp_create_reader): Always call init ().
        (cpp_start_read): Update.
        (output_deps): New function, broken out of cpp_finish.
        (cpp_finish): Break out output_deps.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38770 138bc75d-0d04-0410-961f-82ee72b054a4

Fix typo.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38769 138bc75d-0d04-0410-961f-82ee72b054a4

    * collect2.c (COFF specific stuff): Revert 12-06 patch
        to prototype system functions.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38768 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/format/format.h: New file.
* gcc.dg/format/array-1.c, gcc.dg/format/attr-1.c,
gcc.dg/format/branch-1.c, gcc.dg/format/c90-printf-1.c,
gcc.dg/format/c90-printf-2.c, gcc.dg/format/c90-printf-3.c,
gcc.dg/format/c90-scanf-1.c, gcc.dg/format/c90-scanf-2.c,
gcc.dg/format/c90-scanf-3.c, gcc.dg/format/c90-scanf-4.c,
gcc.dg/format/c90-strftime-1.c, gcc.dg/format/c90-strftime-2.c,
gcc.dg/format/c94-printf-1.c, gcc.dg/format/c94-scanf-1.c,
gcc.dg/format/c99-printf-1.c, gcc.dg/format/c99-printf-2.c,
gcc.dg/format/c99-printf-3.c, gcc.dg/format/c99-scanf-1.c,
gcc.dg/format/c99-scanf-2.c, gcc.dg/format/c99-scanf-3.c,
gcc.dg/format/c99-strftime-1.c, gcc.dg/format/c99-strftime-2.c,
gcc.dg/format/diag-1.c, gcc.dg/format/errmk-1.c,
gcc.dg/format/ext-1.c, gcc.dg/format/ext-2.c,
gcc.dg/format/ext-3.c, gcc.dg/format/ext-4.c,
gcc.dg/format/ext-5.c, gcc.dg/format/miss-1.c,
gcc.dg/format/miss-2.c, gcc.dg/format/no-exargs-1.c,
gcc.dg/format/no-y2k-1.c, gcc.dg/format/nonlit-1.c,
gcc.dg/format/nonlit-2.c, gcc.dg/format/nonlit-3.c,
gcc.dg/format/sec-1.c, gcc.dg/format/strfmon-1.c,
gcc.dg/format/va-1.c, gcc.dg/format/warnll-1.c,
gcc.dg/format/xopen-1.c, gcc.dg/format/z-1.c: Include "format.h"
instead of declaring standard types, macros and functions in each
test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38767 138bc75d-0d04-0410-961f-82ee72b054a4

* hard-reg-set.h: Add multiple include guard.
* basic-block.h (struct loop): Add `sink' field.
* loop.h: Include sbitmap.h, hard-reg-set.h, and basic-block.h.
(emit_iv_add_mult): Delete.
(loop_iv_add_mult_hoist, loop_iv_add_mult_sink): Define.
(loop_iv_add_mult_emit_before, loop_insn_sink): Define.
(unroll_loop): Remove end_insert_before argument.
* loop.c (loop_givs_rescan): Remove end_insert_before argument.
(maybe_eliminate_biv_1): Likewise.
(emit_iv_add_mult): Delete.
(gen_add_mult, loop_regs_update): New.
(loop_insn_emit_after, loop_insn_emit_before): New.
(loop_insn_sink, loop_insn_sink_or_swim): New.
(emit_iv_add_mult): Delete.
(scan_loop): Set loop->sink.
(loop_givs_reduce): Use loop_insn_sink and its ilk.
(loop_givs_rescan, strength_reduce, check_dbra_loop): Likewise.
(maybe_eliminate_biv_1): Likewise.
(maybe_eliminate_biv_1): Add basic block argument.
* unroll.c (unroll_loop): Remove end_insert_before argument.
(find_splittable_regs): Likewise.
(find_splittable_regs): Use loop_insn_sink and its ilk.
(find_splittable_givs, final_biv_value, final_giv_value): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38766 138bc75d-0d04-0410-961f-82ee72b054a4

* loop.h (loop_insn_hoist): New prototype.
* loop.c (loop_insn_hoist, loop_insn_emit_before): New.
(move_movables, loop_givs_rescan): Use loop_insn_hoist.
(check_dbra_loop, load_mems): Likewise.
* unroll.c (unroll_loop, find_splittable_regs): Likewise.
(find_splittable_givs): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38765 138bc75d-0d04-0410-961f-82ee72b054a4

* loop.c (emit_iv_add_mult): Use single_set to examine new insn.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38764 138bc75d-0d04-0410-961f-82ee72b054a4

    * sched-rgn.c (is_cfg_nonregular): Fix thinko's last change.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38763 138bc75d-0d04-0410-961f-82ee72b054a4

    * Makefile.in (DRIVER_DEFINES): Define ENABLE_SHARED_LIBGCC and
        NO_SHARED_LIBGCC_MULTILIB as required for the target.
        * gcc.c (init_spec): Massage the existing libgcc_spec into a
        variant that handles a shared libgcc.
        (process_command): Always validate -{static,shared}-libgcc.
        (do_spec_1): New 'M' case.
        * invoke.text (Link Options): Document -{static,shared}-libgcc.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38762 138bc75d-0d04-0410-961f-82ee72b054a4

    * Makefile.in (slibdir): New variable.
        (libgcc.mk): Pass SHLIB_INSTALL to mklibgcc.
        (installdirs): Create slibdir.
        (install-libgcc, install-multilib): Defer to libgcc.mk.
        * configure.in (slibdir): Substitute.
        * mklibgcc.in (install): New target.

        * config/t-linux (SHLIB_LINK): Create links for the soname.
        (SHLIB_INSTALL): New.
        * config/alpha/t-osf4 (SHLIB_INSTALL): New.
        * config/mips/t-iris6 (SHLIB_INSTALL): New.
        * config/rs6000/t-aix43 (SHLIB_INSTALL): New.
        * config/sparc/t-slibgcc (SHLIB_INSTALL): New.
        * config/sparc/t-slibgcc-sld (SHLIB_INSTALL): New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38761 138bc75d-0d04-0410-961f-82ee72b054a4

    * config/rs6000/aix.h (LINK_LIBGCC_SPECIAL_1): New.
        * config/rs6000/rs6000.h (LIBGCC_SPEC): Remove.
        * config/rs6000/sysv4.h (LIBGCC_SPEC): Remove.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38760 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38759 138bc75d-0d04-0410-961f-82ee72b054a4

* loop.c (count_loop_regs_set): Delete.
(load_mems_and_recount_loop_regs_set): Delete.
(loop_regs_scan): Merge common code from count_loop_regs_set,
scan_loop, and load_mems_and_recount_loop_regs_set.
(scan_loop): Call load_mems directly and loop_regs_scan
again if new registers created.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38758 138bc75d-0d04-0410-961f-82ee72b054a4

    * toplev.c (main): Call the front-end specific post_options
        hook if one is given.
        * toplev.h (struct_lang_hooks, lang_hooks): New.
        * c-lang.c (c_post_options, lang_hooks): Implement lang_hooks
        for the C front end.
        * cp/decl2.c (cxx_post_options, lang_hooks): Implement
        lang_hooks for the C++ front end.
        * objc/objc-act.c (objc_post_options, lang_hooks): Implement
        lang_hooks for the ObjC front end.
        * f/com.c (lang_hooks): Hooks for the Fortran front end.
        * java/lang.c (lang_hooks): Hooks for the Java front end.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38757 138bc75d-0d04-0410-961f-82ee72b054a4

    * c-lex.c (init_c_lex): Request #define / #undef callbacks
        for verbose DWARF[2] debugging.
        (cb_define, cb_undef): The new callbacks.
        * toplev.h (debug_define, debug_undef): Make const correct.
        * toplev.c (debug_define, debug_undef): Similarly.  Do not
        perform the verbosity tests here anymore.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38756 138bc75d-0d04-0410-961f-82ee72b054a4

* reload.c (subst_reloads): Take INSN argument.  When
replacing a LABEL_REF in a JUMP_INSN, add a REG_LABEL note.
* reload.h (subst_reloads): Adjust prototype.
* reload1.c (reload_as_needed): Pass INSN to subst_reloads.
* jump.c (mark_all_labels): Canonicalize any REG_LABEL notes
present in JUMP_INSNs and copy them to JUMP_LABEL.
* flow.c (find_label_refs, find_basic_blocks_1): Skip
JUMP_INSNs and insns with REG_LABELs that are followed by
JUMP_INSNs with the same REG_LABEL.
* sched-rgn.c (is_cfg_nonregular): Likewise.
* rtlanal.c (computed_jump_p): Make it false if a REG_LABEL
note is available.
* unroll.c (unroll_loop): Look for REG_LABEL notes in
JUMP_INSNs too.
* rtl.texi (REG_LABEL): Document usage in JUMP_INSNs.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38755 138bc75d-0d04-0410-961f-82ee72b054a4

Fix comments for doclets

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38754 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.c-torture/execute/20010106-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38753 138bc75d-0d04-0410-961f-82ee72b054a4

    * loop.c (scan_loop): Use xcalloc for the regs array.
        (load_mems_and_recount_loop_regs_set): Zero the new memory
        received from xrealloc.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38752 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.dg/format/format.exp: New file.
* gcc.dg/c90-printf-1.c: Rename to gcc.dg/format/c90-printf-1.c.
* gcc.dg/c90-printf-2.c: Rename to gcc.dg/format/c90-printf-2.c.
* gcc.dg/c90-printf-3.c: Rename to gcc.dg/format/c90-printf-3.c.
* gcc.dg/c94-printf-1.c: Rename to gcc.dg/format/c94-printf-1.c.
* gcc.dg/c99-printf-1.c: Rename to gcc.dg/format/c99-printf-1.c.
* gcc.dg/c99-printf-2.c: Rename to gcc.dg/format/c99-printf-2.c.
* gcc.dg/c99-printf-3.c: Rename to gcc.dg/format/c99-printf-3.c.
* gcc.dg/c90-scanf-1.c: Rename to gcc.dg/format/c90-scanf-1.c.
* gcc.dg/c90-scanf-2.c: Rename to gcc.dg/format/c90-scanf-2.c.
* gcc.dg/c90-scanf-3.c: Rename to gcc.dg/format/c90-scanf-3.c.
* gcc.dg/c90-scanf-4.c: Rename to gcc.dg/format/c90-scanf-4.c.
* gcc.dg/c94-scanf-1.c: Rename to gcc.dg/format/c94-scanf-1.c.
* gcc.dg/c99-scanf-1.c: Rename to gcc.dg/format/c99-scanf-1.c.
* gcc.dg/c99-scanf-2.c: Rename to gcc.dg/format/c99-scanf-2.c.
* gcc.dg/c99-scanf-3.c: Rename to gcc.dg/format/c99-scanf-3.c.
* gcc.dg/c90-strftime-1.c: Rename to gcc.dg/format/c90-strftime-1.c.
* gcc.dg/c90-strftime-2.c: Rename to gcc.dg/format/c90-strftime-2.c.
* gcc.dg/c99-strftime-1.c: Rename to gcc.dg/format/c99-strftime-1.c.
* gcc.dg/c99-strftime-2.c: Rename to gcc.dg/format/c99-strftime-2.c.
* gcc.dg/format-array-1.c: Rename to gcc.dg/format/array-1.c.
* gcc.dg/format-attr-1.c: Rename to gcc.dg/format/attr-1.c.
* gcc.dg/format-branch-1.c: Rename to gcc.dg/format/branch-1.c.
* gcc.dg/format-diag-1.c: Rename to gcc.dg/format/diag-1.c.
* gcc.dg/format-errmk-1.c: Rename to gcc.dg/format/errmk-1.c.
* gcc.dg/format-ext-1.c: Rename to gcc.dg/format/ext-1.c.
* gcc.dg/format-ext-2.c: Rename to gcc.dg/format/ext-2.c.
* gcc.dg/format-ext-3.c: Rename to gcc.dg/format/ext-3.c.
* gcc.dg/format-ext-4.c: Rename to gcc.dg/format/ext-4.c.
* gcc.dg/format-ext-5.c: Rename to gcc.dg/format/ext-5.c.
* gcc.dg/format-miss-1.c: Rename to gcc.dg/format/miss-1.c.
* gcc.dg/format-miss-2.c: Rename to gcc.dg/format/miss-2.c.
* gcc.dg/format-no-exargs-1.c: Rename to gcc.dg/format/no-exargs-1.c.
* gcc.dg/format-no-y2k-1.c: Rename to gcc.dg/format/no-y2k-1.c.
* gcc.dg/format-nonlit-1.c: Rename to gcc.dg/format/nonlit-1.c.
* gcc.dg/format-nonlit-2.c: Rename to gcc.dg/format/nonlit-2.c.
* gcc.dg/format-nonlit-3.c: Rename to gcc.dg/format/nonlit-3.c.
* gcc.dg/format-sec-1.c: Rename to gcc.dg/format/sec-1.c.
* gcc.dg/format-strfmon-1.c: Rename to gcc.dg/format/strfmon-1.c.
* gcc.dg/format-va-1.c: Rename to gcc.dg/format/va-1.c.
* gcc.dg/format-warnll-1.c: Rename to gcc.dg/format/warnll-1.c.
* gcc.dg/format-xopen-1.c: Rename to gcc.dg/format/xopen-1.c.
* gcc.dg/formatz-1.c: Rename to gcc.dg/format/z-1.c.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38749 138bc75d-0d04-0410-961f-82ee72b054a4

* mkdeps.c (deps_add_dep): Fix vector re-allocation.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38748 138bc75d-0d04-0410-961f-82ee72b054a4

* integrate.c (copy_rtx_and_substitute): When copying
an ignored return value, strip REG_FUNCTION_VALUE_P.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38747 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38746 138bc75d-0d04-0410-961f-82ee72b054a4

From patha@softlab.ericsson.se:
* parse.y (switch_label): Use build, not build1, to construct
DEFAULT_EXPR.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38745 138bc75d-0d04-0410-961f-82ee72b054a4

* loop.c (debug_biv, debug_giv): New.
(loop_biv_dump): Break out from ...
(record_biv): ... here.
(loop_giv_dump): Break out from ...
(record_giv): ... here.
(loop_bivs_check): Use print_simple_rtl.
* unroll.c (loop_iterations): Use print_simple_rtl.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38744 138bc75d-0d04-0410-961f-82ee72b054a4

2001-01-05  Benjamin Kosnik  <bkoz@redhat.com>

Fix 27_io/filebuf_members.cc
* src/localename.cc (locale::_Impl::_Impl(const _Impl& __imp,
const string& __name, category __cat, size_t __refs): Set
_M_has_name with _M_name.
* include/bits/localefwd.h (locale::operator!=): Protect member
function call with this->.
* src/locale.cc (locale::operator==): Make fast checks first.
* include/bits/basic_ios.tcc (basic_ios::init): Simplify.

* include/bits/ios_base.h (_M_synced_with_stdio): Add data member
to ios_base::Init.
* src/ios.cc (ios_base::Init::Init): Initialize here.
(ios_base::sync_with_stdio): Set here.

2001-01-04  Loren J. Rittle  <ljrittle@acm.org>

        * config/c_io_stdio.cc (__basic_file<_CharT>::sys_open()): On
        systems that support it, call dup() before fdopen().

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38742 138bc75d-0d04-0410-961f-82ee72b054a4

* pa.md (return, return_internal): Modify patterns to prevent regrename
mucking with the return pointer.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38741 138bc75d-0d04-0410-961f-82ee72b054a4

Testcase for recent checkin.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38740 138bc75d-0d04-0410-961f-82ee72b054a4

* varasm.c (assemble_name): Ensure we output the stripped name.
Fixes s35520.C.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38739 138bc75d-0d04-0410-961f-82ee72b054a4

Update copyright.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38738 138bc75d-0d04-0410-961f-82ee72b054a4

    * dwarf2out.c (mem_loc_descriptor) [case MEM]: Revert 10-31 change.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38737 138bc75d-0d04-0410-961f-82ee72b054a4

Faster __mulsi routine

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38736 138bc75d-0d04-0410-961f-82ee72b054a4

    * cpp.texi: Update for -MQ.
        * cppinit.c (cpp_create_reader): Always create pfile->deps.
        (cpp_cleanup): Always free pfile->deps.
        (initialize_dependency_output): Don't create pfile->deps.
        (cpp_handle_option): Similarly.
        (OPT_MQ): New.
        * gcc.c (cpp_options): Handle -MQ.
        (DEFAULT_WORD_SWITCH_TAKES_ARG): Add -MQ.
        * mkdeps.c (base_name): Remove.
        (deps_init): Don't allocate vector space until it's needed.
        (deps_free): Only free vectors if allocated.
        (deps_add_target, deps_add_dep): Update for initial allocation.
        (deps_add_default_target): Don't strip to the base_name.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38735 138bc75d-0d04-0410-961f-82ee72b054a4

Implement __builtin_return_address (0)

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38734 138bc75d-0d04-0410-961f-82ee72b054a4

* cpplib.h (struct cpp_reader): Add help_only field.
* cppinit.c (COMMAND_LINE_OPTIONS): Add OPT_version.
(cpp_handle_option): Set pfile->help_only if we see -h,
--help, -target-help, or --version.  Print version string but
do not set help_only if we see -v or -version.  Make text
printed by -v match that printed by (-)-version.

* cppmain.c (main): Exit after option parsing if
pfile->help_only is true.

* toplev.c (independent_decode_option): Call print_version,
then exit, if we see --version (but not -version).
(print_version): Split lengthy message into two lines.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38733 138bc75d-0d04-0410-961f-82ee72b054a4

Use alloca to create temporary string for initialisation before calling
ggc_alloc_string.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38732 138bc75d-0d04-0410-961f-82ee72b054a4

* java/io/PipedReader: Synchronize on "lock" instead of this.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38731 138bc75d-0d04-0410-961f-82ee72b054a4

* rtl.h (print_simple_rtl): New.
* print-rtl.c (print_simple_rtl): New.
(flag_simple): New.
(print_rtx): Disable printing of flags and modes, etc.,
        if `flag_simple` nonzero.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38730 138bc75d-0d04-0410-961f-82ee72b054a4

* function.c (fixup_var_refs): Use push_to_full_sequence where
possible.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38729 138bc75d-0d04-0410-961f-82ee72b054a4

Declare flag_reorder_blocks and flag_rename_registers

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38728 138bc75d-0d04-0410-961f-82ee72b054a4

Note that INSN_PTR may be the note at the beginning of a block

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38726 138bc75d-0d04-0410-961f-82ee72b054a4

* gcc.c-torture/execute/991228-1.c: Take word endianness into
account.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38725 138bc75d-0d04-0410-961f-82ee72b054a4

* function.c (reorder_blocks): Make sure the flags are all reset
before using them to mark blocks, else a second invocation will
corrupt the block chain.
(reorder_blocks_0): New, resets the flags.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38724 138bc75d-0d04-0410-961f-82ee72b054a4

* cse.c (find_comparison_args): Stop if the argument is known to
be constant.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38723 138bc75d-0d04-0410-961f-82ee72b054a4

* config/sh/sh.md (movdf): When splitting load into pair of
registers, don't clobber the register used in the address too
early.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38722 138bc75d-0d04-0410-961f-82ee72b054a4

2001-01-05  Jeffrey Oldham  <oldham@codesourcery.com>

* varasm.c (mark_constant_pool): Improve initial comments.
(mark_constants): Move marking of constants to mark_constant.
(mark_constant): New function to recursively mark all constants
referred to by a constant.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38721 138bc75d-0d04-0410-961f-82ee72b054a4

(dbxout_parms): Handle invisible ref where decl is a REG

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38720 138bc75d-0d04-0410-961f-82ee72b054a4

2001-01-05  Phil Edwards  <pme@sources.redhat.com>

* cp/lang-options.h:  Bring comment in line with reality.
* f/lang-options.h:  Likewise.
* java/lang-options.h:  Likewise.
* objc/lang-options.h:  Likewise.
* ch/lang-options.h:  Likewise.
* f/g77.texi:  And update the manual.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38719 138bc75d-0d04-0410-961f-82ee72b054a4

* config/avr/avr-protos.h (avr_peep2_scratch_safe): Prototype.
* config/avr/avr.c (avr_peep2_scratch_safe): New function.
* config/avr/avr.md (all peepholes that request a scratch register):
Call it, FAIL the peephole if not safe (in interrupt functions).

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38718 138bc75d-0d04-0410-961f-82ee72b054a4

* ggc-page.c (NUM_EXTRA_ORDERS): Hardwire to zero for now.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38717 138bc75d-0d04-0410-961f-82ee72b054a4

* builtins.def (BUILT_IN_CONJ, BUILT_IN_CREAL, BUILT_IN_CIMAG):
Define.
* builtins.c (expand_builtin): Abort on BUILT_IN_CONJ,
BUILT_IN_CREAL and BUILT_IN_CIMAG.
* c-common.c (c_common_nodes_and_builtins): Create builtin conjf,
conj, conjl, crealf, creal, creall, cimagf, cimag and cimagl.
(expand_tree_builtin): Handle BUILT_IN_CONJ, BUILT_IN_CREAL and
BUILT_IN_CIMAG.
* extend.texi: Document these builtins.

testsuite:
* gcc.c-torture/execute/builtin-complex-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38716 138bc75d-0d04-0410-961f-82ee72b054a4

VECTOR_TYPE fixes for aliasing, and dwarf2 output.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38715 138bc75d-0d04-0410-961f-82ee72b054a4

cp:
* parse.y (template_datadef): Check for error_mark_node.
testsuite:
* g++.old-deja/g++.pt/crash62.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38714 138bc75d-0d04-0410-961f-82ee72b054a4

fix exit and atexit calls for vax-*-bsd systems

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38713 138bc75d-0d04-0410-961f-82ee72b054a4

* arm.md (ldmsi_postinc): Avoid use of match_dup between input and
output operands.  Use arm_hard_register_operand for operand 4.
(stmsi_postinc): Similarly.
(ldmsi): Use arm_hard_register_operand for opernand 2.
(stmsi): Similarly.
* arm.c (arm_hard_register_operand): New function.
* arm-protos.h (arm_hard_register_operand): Prototype it.

* arm.h (HARD_REGNO_RENAME_OK): Define.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38712 138bc75d-0d04-0410-961f-82ee72b054a4

* simplify-rtx.c (cfc_args): add "unordered" field.
(check_fold_consts): Set unordered field.
(simplify_relational_operation): Simplify the unordered
comparisons.

* reg-stack.c (swap_rtx_condition): Ensure that the transformation
is valid.

* emit-rtl.c (try_split): Fix code to mark labels.
* jump.c (mark_jump_label): Make global.
* rtl.h (mark_jump_label): Declare.

* predict.c (estimate_probability): Handle unordred comparisons.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38711 138bc75d-0d04-0410-961f-82ee72b054a4

cp:
* cp-tree.def (DEFAULT_ARG): Make `x' class.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38710 138bc75d-0d04-0410-961f-82ee72b054a4

Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38709 138bc75d-0d04-0410-961f-82ee72b054a4

* java/io/PipedInputStream: Rewrote to be simpler and more correct.
* java/io/PipedOutputStream: Updated to match new PipedInputStream.
* java/io/PipedReader: New implementation based on new
PipedInputStream.
* java/io/PipedWriter: Updated to match new PipedOutputStream.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38708 138bc75d-0d04-0410-961f-82ee72b054a4

    * cpp.texi: Update for -MP.  Clarify behaviour of -MT.
        * cppinit.c (initialize_dependency_output):  Update.
        (cpp_finish): Output dummy targets for -MP.
        (OPT_MP): New.
        (cpp_handle_option): Handle -MP.  Don't quote -MT options.
        * cpplib.h (struct cpp_options): Add deps_phony_targets.
        * gcc.c (cpp_options): Update to handle -MP.
        * mkdeps.c (deps_add_target, deps_add_default_target): Update
        to quote only the default target.
        (deps_phony_targets): Insert a preceding newline.  Rename from
        deps_dummy_targets for consistency.
        * mkdeps.h: Update
java:
        * lang.c (lang_decode_option): Change -MA to -MP.
        * jcf-depend.c (jcf_dependency_add_target, jcf_dependency_set_target):
        Update to new prototype; do quote targets.
        (jcf_dependency_write): Update.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38707 138bc75d-0d04-0410-961f-82ee72b054a4

* calls.c (emit_library_call_value_1): Support
INIT_CUMULATIVE_LIBCALL_ARGS.
* tm.texi (INIT_CUMULATIVE_LIBCALL_ARGS): Document it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38706 138bc75d-0d04-0410-961f-82ee72b054a4

    * c-decl.c (finish_struct): Detect flexible array members
        used in an inappropriate context.
        * c-typeck.c (really_start_incremental_init): Special case
        constructor_max_index for zero length arrays.
        (pop_init_level): Allow initialization of flexible array
        members.  Deprecate initialization of zero length arrays.
        Don't issue missing initializer warning for flexible array
        members or zero length arrays.
        (process_init_element): Don't dereference null DECL_SIZE.
        * varasm.c (array_size_for_constructor): Return a HOST_WIDE_INT.
        Don't abort for empty constructors.  Use size_binop
        (output_constructor): Add commentary regarding zero length
        array futures.  Abort if we try to initialize an array of
        unspecified length with a non-empty constructor in the middle
        of a structure.

        * extend.texi (Zero Length): Update and clarify documentation
        on static initialization.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38705 138bc75d-0d04-0410-961f-82ee72b054a4