* 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).

Co-Authored-By: Denis Chertykov <denisc@overta.ru>

From-SVN: r38718

From-SVN: r38717

	* 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.

From-SVN: r38716

From-SVN: r38715

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

From-SVN: r38714

From-SVN: r38713

* 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.

From-SVN: r38712

	* 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.

From-SVN: r38711

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

From-SVN: r38710

From-SVN: r38709

	* 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.

From-SVN: r38708

        * 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.

From-SVN: r38707

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

From-SVN: r38706

        * 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.

From-SVN: r38705

        * gcc.dg/20000926-1.c: Update expected warnings.
        * gcc.dg/array-2.c: Likewise.
        * gcc.dg/array-4.c: Also validate flexible array members.
        * gcc.dg/c99-flex-array-1.c: New.

From-SVN: r38704

	* config/c4x/c4x.c (c4x_expand_prologue): Don't compile an ISR
	with more than 32767 words of local storage.

From-SVN: r38703

	* config/c4x/c4x.c (c4x_init_builtins): Remove builtin support
	for 'abs', 'labs', and 'fabs'.
	(c4x_expand_builtin): Likewise.
	* config/c4x/c4x.h (enum c4x_builtins): Likewise.

From-SVN: r38702

* config/sh/sh.md (prget, prset): New insn types.
(return delay slot): Dont' allow prset.
(call, sfunc delay slot): Don't allow prget.
(movsi_i, movsi_ie, movsi_i_lowpart): Create separate alternatives
for prset and prget.

From-SVN: r38701

	* loop.h (struct loop_reg): New.
	(struct loop_regs): Change to use array of `struct loop_reg'.
	* loop.c: Replace assortment of varrays with single regs array.
	(count_one_set): Delete may_not_move array argument
	and use regs array instead.  All caller's changed.
	(count_loop_regs_set): Delete may_not_move and single_usage
	arguments and use regs array instead.  All caller's changed.
	(find_single_use_in_loop): Replace usage array argument with pointer
	to regs structure.  All caller's changed.
	(loop_optimize): Delete `moved_once' array.

From-SVN: r38700

	* loop.c (prescan_loop): Set loop_info->has_nonconst_call.
	Use it instead of loop_info->has_call for scanning loop mems.
	(check_dbra_loop): Replace loop_info->has_call test with
	loop_info->has_nonconst_call.

From-SVN: r38699

* config/sh/sh.h (EPILOGUE_USES): Recognize fpscr as epilogue-used
for TARGET_SH3E.

From-SVN: r38698

From-SVN: r38697

	* fold-const.c (fold): When folding a CONJ_EXPR of a COMPLEX_CST,
	use TREE_REALPART and TREE_IMAGPART instead of TREE_OPERAND.

testsuite:
	* gcc.c-torture/compile/20001222-1.x: Remove.

From-SVN: r38696

	* c-common.c (SIZE_TYPE, WCHAR_TYPE): Define.
	(flag_short_double, flag_short_wchar): Define.
	(c_common_nodes_and_builtins): Create many tree nodes shared
	between C and C++ here instead of in cp/decl.c and ...
	* c-decl.c (init_decl_processing): ... here.
	(SIZE_TYPE, WCHAR_TYPE): Don't define.
	(flag_short_double, flag_short_wchar): Don't define.
	(record_builtin_type): New function.
	(build_void_list_node): New function.
	* c-common.h (flag_short_double, flag_short_wchar,
	record_builtin_type, build_void_list_node): Declare.

cp:
	* decl.c (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE): Don't define.
	(record_builtin_type): Make non-static.
	(flag_short_double): Don't declare.
	(init_decl_processing): Remove the creation of many tree nodes now
	in c_common_nodes_and_builtins.
	(build_void_list_node): New function.
	* decl2.c (flag_short_double, flag_short_wchar): Don't define.
	* cp-tree.h (flag_short_wchar): Don't declare.

From-SVN: r38695

	* integrate.c (expand_inline_function): Don't put a virtual
	register into the reg map.

	* function.c (fixup_var_refs_1): If force_operand didn't put
	the address into the target, move it there.

From-SVN: r38694

2001-01-03  Benjamin Kosnik  <bkoz@redhat.com>

	* include/c_std/bits/std_cwctype.h: Include std_cwchar.h for wint_t.
	* testsuite/17_intro/header_cwctype.cc (main): New file.

	* src/Makefile.am (base_headers): Change.
	* include/bits/std_string.h: And here.
	* include/bits/string.tcc: Tweaks, move to...
	* include/bits/basic_string.tcc: ...Here.
	* src/string-inst.cc: Simplify, just instantiate the whole class,
	not member-by-member.

From-SVN: r38693

	* ggc-page.c (OBJECT_PER_PAGE): Reimplement.
	(OBJECT_SIZE): New macro.
	(NUM_EXTRA_ORDER): Likewise.
	(extra_order_size_table): New variable.
	(NUM_ORDERS): New macro.
	(objects_per_page_table): New variable.
	(object_size_table): New variable.
	(G.pages): Use NUM_ORDERS to bound the array.
	(G.page_tails): Likewise.
	(DIV_ROUND_UP): Remove.
	(BITMAP_SIZE): Use CEIL, instead of DIV_ROUND_UP.
	(alloc_page): Use OBJECT_SIZE.
	(size_lookup): Don't make it const.
	(ggc_alloc): Use OBJECT_SIZE.
	(ggc_set_mark): Likewise.
	(ggc_get_size): Likewise.
	(init_ggc): Set up the object_size_table, objects_per_page_table,
	and adjust size_lookup.
	(ggc_recalculate_in_use_p): Use CEIL, not DIV_ROUND_UP.
	(ggc_pop_context): Use NUM_ORDERS.
	(clear_marks): Likewise.
	(sweep_pages): Likewise.
	(poison_pages): Likewise.
	(ggc_print_statistics): Use OBJECT_SIZE.

From-SVN: r38692

	* varasm.c (output_constructor): Use HOST_WIDE_INT for sizes.
	Only call array_size_for_constructor if last field and array type
	with no upper bound.

From-SVN: r38691

arm.c (arm_gen_constant): Prefer to emit constants from bit 31 downwards, if this requires no more insns.

2001-01-04  Philip Blundell  <philb@gnu.org>

	* config/arm/arm.c (arm_gen_constant): Prefer to emit constants
	from bit 31 downwards, if this requires no more insns.
	(count_insns_for_constant): New helper function for above.

From-SVN: r38690

From-SVN: r38689

	* call.c (build_conv): Don't use build1 for USER_CONV.
	* pt.c (tsubst_copy): Or for PREINCREMENT_EXPR and similar nodes.

From-SVN: r38688

From-SVN: r38687

	* tree.c (copy_node): Remove documentation about obstacks.
	(buidl1): Check that nobody tries to build 2-argument nodes this
	way.

	* call.c (build_conv): Don't use build1 for USER_CONV.
	* pt.c (tsubst_copy): Or for PREINCREMENT_EXPR and similar nodes.

From-SVN: r38686

	* sparc.h (PREDICATE_CODES): Delete fp_sethi_p, fp_mov_p and
	fp_high_losum_p.

From-SVN: r38685

	* gencodes.c (output_predicate_decls): Fill empty initializer
	braces.

From-SVN: r38684

	* tradcpp.c (deps_file, print_deps_missing_files): New variables.
	(main): Handle -MG, -MD, -MMD.  Bail out if -MG is given without -M
	or -MM.
	(do_include): Handle missing headers like cpp0.
	* cppfiles.c (_cpp_execute_include): Don't prefix absolute header
	paths with first include pathname.  Don't strcat to uninitialized
	string.

From-SVN: r38683

From-SVN: r38682

        * cpp.texi: Update for -MT.
        * cppinit.c (initialize_dependency_output): Add a default
        target if none has been given already.
        (no_tgt, OPT_MT): New.
        (cpp_handle_option): Handle -MT.  Update -M etc.
        * cpplib.h (struct cpp_options): Remove deps_target.
        * gcc.c (cpp_options): Handle -MT.
        * mkdeps.c (struct deps): Move from mkdeps.h.
        (deps_calc_target): Rename deps_add_default_target.  Add a
        default target if none has been specified already.
        * mkdeps.h (struct deps): Move to mkdeps.c.
        (deps_calc_target): Rename deps_add_default_target.

From-SVN: r38681

From-SVN: r38680

2001-01-03  Benjamin Kosnik  <bkoz@redhat.com>

	* include/c_std/bits/std_cwctype.h: Include std_cwchar.h for wint_t.
	* testsuite/17_intro/header_cwctype.cc (main): New file.

	* src/Makefile.am (base_headers): Change.
	* include/bits/std_string.h: And here.
	* include/bits/string.tcc: Tweaks, move to...
	* include/bits/basic_string.tcc: ...Here.
	* src/string-inst.cc: Simplify, just instantiate the whole class,
	not member-by-member.

From-SVN: r38679