Paolo Carlini [Fri, 2 Jul 2004 14:49:09 +0000 (14:49 +0000)]
type_traits.h (_Is_normal_iterator): Move...
2004-07-02 Paolo Carlini <pcarlini@suse.de>
* include/bits/type_traits.h (_Is_normal_iterator): Move...
* include/bits/cpp_type_traits.h: ... here, renamed to
__is_normal_iterator and consistent with the other traits.
* include/bits/stl_algobase.h (__copy_ni1, __copy_ni2): Convert
to the struct __copy_normal and three specializations.
(__copy_backward_output_normal_iterator,
__copy_backward_input_normal_iterator): Likewise, convert to
the struct __copy_backward_normal and three specializations.
(copy, copy_backward): Use the latter.
(__copy_aux, __copy_backward_aux): Very minor tweaks.
* Makefile.def (build_modules): Add bison, byacc, flex,
m4, texinfo.
(flags_to_pass): Add FLEX.
* Makefile.tpl (BUILD_DIR_PREFIX, BASE_EXPORTS): New.
(BUILD_EXPORTS, HOST_EXPORTS, BASE_TARGET_EXPORTS): Include it.
(DEFAULT_YACC, USUAL_YACC, DEFAULT_LEX, USUAL_LEX, DEFAULT_M4,
DEFAULT_MAKEINFO): Remove.
(CONFIGURED_YACC, CONFIGURED_FLEX, CONFIGURED_BISON,
CONFIGURED_LEX, CONFIGURED_M4, CONFIGURED_MAKEINFO): Substitute.
(YACC, FLEX, BISON, LEX, M4, MAKEINFO): Define to look into
objdir or else use configured tool.
(all-build): New.
(all): Depend on it.
(Build module dependencies): Add.
* Makefile.in: Regenerate.
* configure.in: Better support for multiple build modules,
matching what is done for host/target modules. Do not look
for "plausible" locations of build tools if Canadian cross.
Use autoconf's AC_PROG_CC to find a C compiler. Define
BUILD_DIR_PREFIX. Look for flex, makeinfo and m4.
* configure: Regenerate.
Richard Kenner [Thu, 1 Jul 2004 19:32:27 +0000 (19:32 +0000)]
tree-pretty-print.c (dump_generic_node, [...]): Use access functions for lower bound and element size and only output if...
* tree-pretty-print.c (dump_generic_node, case ARRAY_REF): Use
access functions for lower bound and element size and only output
if lower bound nonzero or element size not same as that of type.
(dump_generic_node, case COMPONENT_REF): Use access func. for offset.
Paolo Carlini [Thu, 1 Jul 2004 17:53:21 +0000 (17:53 +0000)]
stl_algobase.h (__copy_trivial): Remove.
2004-07-01 Paolo Carlini <pcarlini@suse.de>
* include/bits/stl_algobase.h (__copy_trivial): Remove.
(__copy_aux2): Rewrite as __copy_aux to use __is_pointer,
__is_trivially_copyable, __are_same and __copy::copy.
(__copy): Rewrite as a class template and two specializations.
(__copy_ni2): Simplify, just call __copy_aux.
* include/bits/stl_algobase.h (__copy_backward_aux): Add __are_same
check.
* testsuite/25_algorithms/copy/1.cc, 2.cc, 3.cc, 4.cc: Test also
for destination value type != source value type.
Benjamin Kosnik [Thu, 1 Jul 2004 15:30:36 +0000 (15:30 +0000)]
re PR libstdc++/16248 (recent concurrence.h chanes breaks mingw bootstrap)
2004-07-01 Benjamin Kosnik <bkoz@redhat.com>
Per Bothner <per@bothner.com>
Mohan Embar <gnustuff@thisiscool.com>
PR libstdc++/16248
* include/bits/concurrence.h (__glibcxx_mutex_type): New.
(__glibcxx_mutex): Encapsulate mutex init function into type for
threaded configurations without __GTHREAD_MUTEX_INIT.
(lock::lock): Make device member a reference.
(lock::~lock): Same.
* include/ext/pool_allocator.h (__pool_base::_M_get_mutex): Change
to mutex_type.
* src/allocator.cc: Same.
Benjamin Kosnik [Thu, 1 Jul 2004 14:49:29 +0000 (14:49 +0000)]
Per Bothner <per@bothner.com > Mohan Embar <gnustuff@thisiscool.com>
2004-07-01 Benjamin Kosnik <bkoz@redhat.com>
Per Bothner <per@bothner.com >
Mohan Embar <gnustuff@thisiscool.com>
PR libstdc++/16248
* include/bits/concurrence.h (__glibcxx_mutex_type): New.
(__glibcxx_mutex): Encapsulate mutex init function into type for
threaded configurations without __GTHREAD_MUTEX_INIT.
(lock::lock): Make device member a reference.
(lock::~lock): Same.
* include/ext/pool_allocator.h (__pool_base::_M_get_mutex): Change
to mutex_type.
* src/allocator.cc: Same.
Co-Authored-By: Mohan Embar <gnustuff@thisiscool.com> Co-Authored-By: Per Bothner <per@bothner.com>
From-SVN: r83985
Jakub Jelinek [Thu, 1 Jul 2004 14:05:16 +0000 (16:05 +0200)]
expr.c (expand_assignment): Optimize bitfld += cst for 1 bit bitfields as well.
* expr.c (expand_assignment): Optimize bitfld += cst for 1 bit
bitfields as well. STRIP_NOPS from src operand and PLUS_EXPR's
first operand. Don't optimize if the bitfield is volatile.
Roger Sayle [Thu, 1 Jul 2004 13:09:39 +0000 (13:09 +0000)]
simplify-rtx.c (simplify_binary_operation): Use rtx_cost instead of "had_mult" to determine whether the transformed...
* simplify-rtx.c (simplify_binary_operation) <PLUS, MINUS>: Use
rtx_cost instead of "had_mult" to determine whether the transformed
expression is cheaper than the original.
Joseph Myers [Thu, 1 Jul 2004 08:52:33 +0000 (09:52 +0100)]
re PR c/1027 (slightly misleading printf format warning)
PR c/1027
* c-lang.c (c_initialize_diagnostics): Move from here ...
* c-objc-common.c: ... to here. Include "c-pretty-print.h".
(c_tree_printer): Use pretty-printer to format %T.
* c-pretty-print.c (pp_c_specifier_qualifier_list): Include space
before '*' if not C++.
(pp_c_direct_abstract_declarator): Don't try to print array upper
bound for flexible array members.
* c-tree.h: Include "diagnostic.h".
(c_initialize_diagnostics): Declare.
* objc/objc-lang.c (LANG_HOOKS_INITIALIZE_DIAGNOSTICS): Define.
* c-format.c (format_type_warning): New function. Improve
diagnostics for incorrect format argument types.
(check_format_types): Use it. Add two parameters. Use the
TYPE_MAIN_VARIANT of wanted_type.
(check_format_info_main): Pass new parameters to
check_format_types.
(struct format_wanted_type): Update comment.
Nick Clifton [Thu, 1 Jul 2004 08:47:16 +0000 (08:47 +0000)]
target.h (struct gcc_target): Add new field to struct cxx: import_export_class.
* target.h (struct gcc_target): Add new field to struct cxx: import_export_class.
* target-def.h (TARGET_CXX): Initialise the new field.
(TARGET_CXX_IMPORT_EXPORT_CLASS): Provide a default value for the new field.
* doc/tm.texi: Document the new target hook.
* decl2.c (import_export_class): Invoke the import_export_class field in the
gcc_target structure if it is not empty.
* cgraph.h (cgraph_build_static_cdtor): Declare.
* cgraphunit.c (cgraph_build_static_cdtor): New.
* c-objc-common.c (build_cdtor): Use it.
* coverage.c (create_coverage): Likewise.
* libfuncs.h (LTI_gcov_init, gcov_init_libfunc): Remove.
* optabs.c (init_optabs): Don't set gcov_init_libfunc.
java/
* class.c (registerClass_libfunc): Remove.
(init_class_processing): Don't set it.
(emit_register_classes): Take list_p parameter. Fill it in
with _Jv_RegisterClass calls.
* decl.c (java_init_decl_processing): Don't call
init_resource_processing.
* jcf-parse.c (java_emit_static_constructor): New.
(java_parse_file): Call it.
* resource.c (registerResource_libfunc): Remove.
(init_resource_processing): Remove.
(write_resource_constructor): Take list_p parameter. Fill it in
with _Jv_RegisterResource calls.
* java-tree.h: Update prototypes.
Roger Sayle [Thu, 1 Jul 2004 04:27:09 +0000 (04:27 +0000)]
expmed.c (expand_shift): Consider expanding LSHIFT_EXPR by a constant as a sequence of additions...
* expmed.c (expand_shift): Consider expanding LSHIFT_EXPR by a
constant as a sequence of additions depending upon the rtx_costs.
(synth_mult): Update the "observed" cost of a shift, based upon
the above optimization.
Index: gcc/ChangeLog
2004-06-28 Geoffrey Keating <geoffk@apple.com>
Andreas Tobler <a.tobler@schweiz.ch>
PR 15813
* dwarf2out.c (reg_save): Output DW_CFA_same_value when a
register is saved in itself.
(initial_return_save): If the return address is a register,
it's already there, don't bother to mention it in the CFI.
(struct queued_reg_save): Add field saved_reg.
(struct reg_saved_in_data): New.
(regs_saved_in_regs): New.
(num_regs_saved_in_regs): New.
(queue_reg_save): Add extra parameter to specify register saved
in register. Remove duplicate entries from queue. Add comment
for function.
(flush_queued_reg_saves): Handle registers saved in registers.
Update regs_saved_in_regs. Add comment for function.
(clobbers_queued_reg_save): Add comment for function. Allow
for regs_saved_in_regs.
(reg_saved_in): New.
(dwarf2out_frame_debug_expr): Handle saving registers in other
registers.
(dwarf2out_frame_debug): Reset regs_saved_in_regs.
* unwind-dw2.c (execute_cfa_program): Correct handling of
DW_CFA_same_value. Add FIXME comment about incorrect implementation
of DW_CFA_restore_extended.
* config/rs6000/rs6000.c (rs6000_emit_prologue): Let
dwarf2out_frame_debug_expr see instructions that save registers
in other registers or save those other registers in memory.
Index: gcc/testsuite/ChangeLog
2004-06-26 Geoffrey Keating <geoffk@apple.com>
Andreas Tobler <a.tobler@schweiz.ch>
* gcc.dg/cleanup-10.c: Run on all Linux platforms and powerpc-darwin.
Use SA_RESETHAND rather than SA_ONESHOT. Trap SIGBUS as well
as SIGSEGV.
* gcc.dg/cleanup-11.c: Likewise.
* gcc.dg/cleanup-8.c: Likewise.
* gcc.dg/cleanup-9.c: Likewise.
* gcc.dg/cleanup-5.c: Run on all platforms.
Index: libjava/ChangeLog
2004-06-26 Geoffrey Keating <geoffk@apple.com>
Andreas Tobler <a.tobler@schweiz.ch>
* configure.host (powerpc-*-darwin*): New case, define
can_unwind_signal.
* configure.in (*-*-darwin*): New case, point to darwin-signal.h.
* configure: Regenerate.
* include/darwin-signal.h: New.
Co-Authored-By: Andreas Tobler <a.tobler@schweiz.ch>
From-SVN: r83953
Alan Modra [Thu, 1 Jul 2004 03:17:31 +0000 (03:17 +0000)]
rs6000.c (rs6000_mixed_function_arg): Rewrite.
* config/rs6000/rs6000.c (rs6000_mixed_function_arg): Rewrite.
(function_arg): Use rs6000_arg_size rather than CLASS_MAX_NREGS in
calculating gpr size for altivec. Simplify and correct
rs6000_mixed_function_arg calls. Call rs6000_mixed_function_arg
for ABI_V4 gpr case too. Fix off-by-one error in long double
reg test. Generate the correct PARALLEL to handle long double
for ABI_AIX 32-bit. Use this for -m32 -mpowerpc64 fpr case too.
(function_arg_partial_nregs): Align before calculating regs left.
Don't return info on partial fprs when we need info on gprs.
Correct long double fpr off-by-one error.
* include/ext/mt_allocator.h: Handle allocations at static
initialization that happen before _S_options is (automatically)
constructed; set _S_init even if _M_force_new is true.
gimplify.c (gimplify_compound_lval): Take fallback argument instead of want_lvalue.
* gimplify.c (gimplify_compound_lval): Take fallback argument
instead of want_lvalue.
(gimplify_call_expr): Take want_value argument instead of test
function. Gimplify arguments to val only if reg_type; otherwise
allow lvalue forms.
(gimplify_expr): Update gimplify_compound_lval and gimplify_call_expr
calls.
* tree-gimple.c: Update GIMPLE grammer. Use true/false not 1/0.
Tidy commentary globally.
(get_call_expr_in): Remove RETURN_EXPR handling. Tidy.
* tree-gimple.h (is_gimple_call_addr): Mark extern.
Per Bothner [Wed, 30 Jun 2004 18:23:35 +0000 (11:23 -0700)]
Conditionally compile support for --enable-mapped_location.
* decl.c (pop_label): Handle (imperfectly) USE_MAPPED_LOCATION case.
* decl2.c: If USE_MAPPED_LOCATION, don't do some line number
adjustments - which I don't understand.
* error.c (dump_decl): Rename "<interrnal>" to "<built-in>".
* error.c: Use LOCATION_FILE and EXPR_LOCATION macros.
(print_instantiation_partial_context): Use expand_location.
* decl.c (duplicate_decl): Use new DECL_IS_BUILTIN macro.
* name-lookup.c: Likewise.
* lex.c (cxx_init): Likewise. Also use BUILTINS_LOCATION.
* name-lookup.c: Use input_line macro.
* parser.c (cp_lexer_get_preprocessor_token): Use UNKNOWN_LOCATION.
(cp_parser_statement): Rename locaal variable statement_locus to
statement_location and use SET_EXPR_LOCATION macro.
* pt.c: Handle USE_MAPPED_LOCATION case. Use new macros.
* tree.c (cp_walk_subtrees): Likewise.
Per Bothner [Wed, 30 Jun 2004 18:11:14 +0000 (11:11 -0700)]
Conditionally compile support for --enable-mapped_location.
* tree-mudflap.c (mf_file_function_line_tree): Take a location_t
rather than a pointer to one. Use expand_location.
(mf_varname_tree): Use expand_location.
* tree-dump.c: Use expand_location on DECL_SOURCE_LOCATION.
* coverage.c: Likewise.
* print-tree.c: Likewise.
* c-aux-info.c (gen_aux_info_record): Likewise.
* c-parse.in: Use SET_EXPR_LOCATION macro.
* gimple-low.c: Likewise.
* tree-mudflap.c: Likewise.
* gimplify.c: Likewise. Also use EXPR_LOCATION and EXPR_HAS_LOCATION.
* c-ppoutput.c: Use new source_location typedef instead of fileline.
* c-semantics.c: Use new macros.
* c-typeck.c: Likewise.
Per Bothner [Wed, 30 Jun 2004 18:05:07 +0000 (11:05 -0700)]
Conditionally compile support for --enable-mapped_location.
* basic-block.h (struct edge_def): Use new source_locus typedef.
* c-common.c (fname_decl): Update save/clear/store of input_location.
(c_do_switch_warnings): Update for USE_MAPPED_LOCATION case.
* c-decl.c: Likewise.
* c-dump.c (dump_stmt): Likewise.
* c-gimplify.c (c-gimplify.c): Generalize using SET_EXPR_LOCATION.
* c-lex.c (cb_line_change): If USE_MAPPED_LOCATION use token's src_loc
to set input_location direction, rather than using linemap_lookup.
(fe_file_change, cb_def_pragma): Again use source_location directly.
* c-opts.c (saved_lineno): Remove static variable.
(c_common_post_options, c_common_init): Don't bothner to save,
clear and restore input_Location - now handled by lang_dependent_init.
* function.c (init_function_start): Use new DECL_IS_BUILTIN macro.
* xcoffout.c (xcoff_assign_fundamental_type_number): Likewise.
Per Bothner [Wed, 30 Jun 2004 17:58:21 +0000 (10:58 -0700)]
Conditionally compile support for --enable-mapped_location.
* input.h: #include line-map.h for source_location typedef.
(BUILTINS_LOCATION, UNKNOWN_LOCATION, expand_location,
LOCATION_FILE, LOCATION_LINE): New macros and functions.
(expanded_location, source_locus): New typedefs.
(push_srcloc): Change parameter list if USE_MAPPED_LOCATION.
* rtl.def (NOTE, ASM_OPERANDS): Modify specifcation, if
USE_MAPPED_LOCATION.
* rtl.h (NOTE_DELETED_LABEL_NAME): New macro.
(NOTE_SOURCE_LOCATION, NOTE_EXPNDED_LOCATION, SET_INSN_DELETED):
New conditional macros.
(ASM_OPERANDS_SOURCE_FILE, ASM_OPERANDS_SOURCE_LINE): Replace
by ASM_OPERANDS_SOURCE_LOCATION if USE_MAPPED_LOCATION.
* tree.h (EXPR_LOCATION, SET_EXPR_LOCATION, EXPR_HAS_LOCATION,
EXPR_LOCUS, SET_EXPR_LOCUS, EXPR_FILENAME, EXPR_LINENO,
DECL_IS_BUILTIN): New macros, most depending on USE_MAPPED__LOCATION.
(tree_exp): Change type of locus to use new source_locus typedef.
* tree.c (build1_stat): Use SET_EXPR_LOCATION.
(annotate_with_locus, annotate_with_file_line): Conditionalize.
(expand_location): New function.
* toplev.c (unknown_location): New static, when USE_MAPPED_LOCATION.
(push_srcloc, pop_loc): Adjust parameter handling.
(process_options): Don't set input_filename by itself.
(lang_dependent_init): Save, set input_location to <built-in>.
(warn_deprecated_use): Use expand_location.
Roger Sayle [Wed, 30 Jun 2004 13:02:36 +0000 (13:02 +0000)]
combine.c: Include "output.h" to define dump_file.
* combine.c: Include "output.h" to define dump_file.
(uid_insn_cost, last_insn_cost): New global variables.
(combine_insn_cost): New function to estimate cost of an insn.
(combine_validate_cost): New function to determine whether a
try_combine replacement sequence is cheaper than the original.
(combine_instructions): Allocate and populate uid_insn_cost
array at the start of the combine pass, and deallocate it after.
(try_combine): Check combine_validate_cost to determine whether
a "recombination" should be rejected as being more expensive.
* Makefile.in (combine.o): Add dependency upon output.h.
Tobias Schlüter [Wed, 30 Jun 2004 12:48:51 +0000 (14:48 +0200)]
re PR fortran/16161 ([gfortran] IMPLICIT CHARACTER not implemented)
fortran/
PR fortran/16161
* decl.c (gfc_match_type_spec): Rename second argument to
'implicit_flag', reverse meaning. Don't match_char_spec if
'implicit_flag' is set. Rename to ...
(match_type_spec): ... this.
(gfc_match_implicit_none, match_implicit_range): Move here
from match.c.
(gfc_match_implicit): Move here from match.c, try to
match_char_len if match_implicit_range doesn't succeed for
CHARACTER implicits. Call renamed fucntion match_type_spec.
(gfc_match_data_decl, match_prefix): Call renamed function
match_type_spec.
* match.c (gfc_match_implicit_none, match_implicit_range,
gfc_match_implicit): Move to decl.c.
* match.h (gfc_match_implicit_none, gfc_match_implicit):
Move protoypes to section 'decl.c'.
(gfc_match_type_spec): Remove prototype.
testsuite/
PR fortran/16161
* gfortran.fortran-torture/compile/implicit.f90: Add test
for implicit character.
Eric Botcazou [Wed, 30 Jun 2004 10:31:30 +0000 (12:31 +0200)]
RTL prologue/epilogue for SPARC
RTL prologue/epilogue for SPARC
* config/sparc/sparc-protos.h (sparc_emitting_epilogue): Delete.
(sparc_skip_caller_unimp): Likewise.
(load_pic_register): Likewise.
(leaf_return_peephole_ok): Likewise.
(compute_frame_size): Rename into sparc_compute_frame_size.
(sparc_expand_prologue): New prototype.
(sparc_expand_epilogue): Likewise.
(output_return): Likewise.
(eligible_for_epilogue_delay): Rename into eligible_for_return_delay.
* config/sparc/sparc.h (INITIAL_ELIMINATION_OFFSET): Adjust call to
compute_frame_size. Move comment up.
(DELAY_SLOTS_FOR_EPILOGUE): Delete.
(ELIGIBLE_FOR_EPILOGUE_DELAY): Likewise.
(EPILOGUE_USES): Return true for %g1 if the function uses EH return.
* config/sparc/sparc.md (UNSPECV_SAVEW): New constant.
(type attribute): Add 'return' and 'savew'.
(eligible_for_return_delay): New attribute.
(return): New delay_slot.
(sibcall_epilogue): Call sparc_expand_epilogue.
(prologue): Likewise. Move up.
(save_register_window): New expander.
(save_register_windowsi): New pattern.
(save_register_windowdi): Likewise.
(epilogue): New expander.
(return_internal): New pattern.
(Return peepholes): Delete.
* config/sparc/sparc.c (SIBCALL_SLOT_EMPTY_P): New macro.
(sparc_emitting_epilogue): Delete.
(sparc_skip_caller_unimp): Likewise.
(sparc_sr_alias_set): New global variable.
(frame_base_name): Delete.
(frame_base_reg): New global variable.
(sparc_override_options): Get new alias set for save/restore.
(leaf_return_peephole_ok): Delete.
(eligible_for_epilogue_delay): Rename into eligible_for_return_delay.
Factor out code into eligible_for_restore_insn_delay.
(eligible_for_restore_insn_delay): New function extraced from above.
Use IN_UNCOND_BRANCH_DELAY_TRUE instead of IN_BRANCH_DELAY_TRUE.
(eligible_for_sibcall_delay): Use SIBCALL_SLOT_EMPTY_P.
Factor out code into eligible_for_restore_insn_delay.
(load_pic_register): Make static. Remove check.
(save_regs): Delete.
(restore_regs): Likewise.
(compute_frame_size): Rename into sparc_compute_frame_size.
Rename leaf_function into leaf_function_p.
(build_big_number): Delete.
(save_or_restore_regs): New function.
(emit_save_regs): Likewise.
(emit_restore_regs): Likewise.
(emit_stack_pointer_increment ): Likewise.
(emit_stack_pointer_decrement): Likewise.
(sparc_expand_prologue): Likewise.
(sparc_function_prologue): Rename into sparc_asm_function_prologue.
Remove all code to emit instructions.
(sparc_expand_epilogue): New function.
(sparc_function_epilogue): Rename into sparc_asm_function_epilogue.
Remove all code to emit instructions.
(output_restore): New function.
(output_return): Likewise.
(output_sibcall): Factor out code into output_restore.
(print_operand): Adjust for frame_base_reg.
* target.h (struct gcc_target): New field 'late_rtl_prologue_epilogue'.
* target-def.h (TARGET_LATE_RTL_PROLOGUE_EPILOGUE): New define.
(TARGET_INITIALIZER): Add it.
* passes.c (rest_of_compilation): Set the conditional predicate
'current_function_uses_only_leaf_regs' before sched2. If target
has 'late_rtl_prologue_epilogue', emit RTL prologue/epilogue right
before sched2.
* reorg.c (return_insn_p): New predicate.
(find_end_label): Use it.
(relax_delay_slots): Do not thread an unconditional jump that points
to the end return label.
* doc/tm.texi (Registers) <Leaf Functions>: Clarify the validity
domain of 'current_function_uses_only_leaf_regs'.
(Stack and Calling) <Function Entry>: Document new target hook
TARGET_LATE_RTL_PROLOGUE_EPILOGUE.
Jakub Jelinek [Wed, 30 Jun 2004 10:09:55 +0000 (12:09 +0200)]
re PR tree-optimization/15310 ([tree-ssa] Optimize an addition in a bit field)
* simplify-rtx.c (simplify_binary_operation): Simplify
((A & N) + B) & M -> (A + B) & M if M is pow2 minus 1 constant and
N has at least all bits in M set as well.
PR tree-optimization/15310
* expr.c (expand_assignment): Optimize += or -= on a bit field in
most significant bits.
Paolo Carlini [Wed, 30 Jun 2004 09:20:18 +0000 (09:20 +0000)]
[multiple changes]
2004-06-30 Gabriel Dos Reis <gdr@integrable-solutions.net>
Paolo Carlini <pcarlini@suse.de>
* include/bits/cpp_type_traits.h: Add __is_pointer and
__is_trivially_copyable.
* include/bits/stl_algobase.h (fill, fill_n): Slightly
tweak to use the latter.
(__copy_backward_dispatch): Remove.
(__copy_backward_aux): Rewrite to use __is_pointer and
__is_trivially_copyable and __copy_backward::copy_b.
(__copy_backward): Rewrite as a class template and two
specializations.
* jni.cc (_Jv_JNI_NewGlobalRef, JNICALL _Jv_JNI_DeleteGlobalRef,
etc etc): Remove needless parenthesis, which causes __stdcall__
attribute on MinGW to get ignored.