When a processor enters a fast interrupts handler, and duplicate
register banks are configured, the processor saves the user context by
saving the registers in the main register bank to these additional
registers in the duplicate register bank.  In this fast interrupt
context, when you specify the rgf_banked_regs option,the compiler does
not save the registers duplicated in the additional register bank are
not saved.

gcc/
2017-05-09  Claudiu Zissulescu  <claziss@synopsys.com>
	    Andrew Burgess  <andrew.burgess@embecosm.com>

	* config/arc/arc.c (ARC_AUTOBLINK_IRQ_P): Consider fast interrupts
	case also.
	(ARC_AUTOFP_IRQ_P): Likewise.
	(ARC_AUTO_IRQ_P): Likewise.
	(rgf_banked_register_count): New variable.
	(parse_mrgf_banked_regs_option): New function.
	(arc_override_options): Handle rgf_banked_regs option.
	(arc_handle_interrupt_attribute): Add firq option.
	(arc_compute_function_type): Return fast irq type when required.
	(arc_must_save_register): Handle fast interrupts.
	(arc_expand_prologue): Do not emit dwarf info for fast interrupts.
	(arc_return_address_regs): Update.
	* config/arc/arc.h (arc_return_address_regs): Update.
	(arc_function_type): Add fast interrupt type.
	(ARC_INTERRUPT_P): Update.
	(RC_FAST_INTERRUPT_P): Define.
	* config/arc/arc.md (simple_return): Update for fast interrupts.
	(p_return_i): Likewise.
	* config/arc/arc.opt (mrgf-banked-regs): New option.
	* doc/invoke.texi (mrgf-banked-regs): Document.

testsuite/
2017-05-09  Claudiu Zissulescu  <claziss@synopsys.com>
	    Andrew Burgess  <andrew.burgess@embecosm.com>

	* gcc.target/arc/firq-1.c: New file.
	* gcc.target/arc/firq-2.c: Likewise.
	* gcc.target/arc/firq-3.c: Likewise.
	* gcc.target/arc/firq-4.c: Likewise.
	* gcc.target/arc/firq-5.c: Likewise.
	* gcc.target/arc/firq-6.c: Likewise.

Co-Authored-By: Andrew Burgess <andrew.burgess@embecosm.com>

From-SVN: r247796

The AUX_IRQ_CTRL register controls the behavior of automated register
save and restore or prologue and epilogue sequences during a non-fast
interrupt entry and exit, and context save and restore instructions.

A user passes to the compiler the configuration of the AUX_IRQ_CTRL
register via mirq-ctrl-saved option.  This option, specifies
gneral-purposes registers that the processor saves/restores on
interrupt entry and exit, and it is only valid for ARC EM and ARC HS
cores.

gcc/
2017-05-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (irq_ctrl_saved): New variable.
	(ARC_AUTOBLINK_IRQ_P): Define.
	(ARC_AUTOFP_IRQ_P): Likewise.
	(ARC_AUTO_IRQ_P): Likewise.
	(irq_range): New function.
	(arc_must_save_register): Likewise.
	(arc_must_save_return_addr): Likewise.
	(arc_dwarf_emit_irq_save_regs): Likewise.
	(arc_override_options): Handle deferred options.
	(MUST_SAVE_REGISTER): Deleted, replaced by arc_must_save_register.
	(MUST_SAVE_RETURN_ADDR): Deleted, replaced by
	arc_must_save_return_addr.
	(arc_compute_frame_size): Handle automated save and restore of
	registers.
	(arc_expand_prologue): Likewise.
	(arc_expand_epilogue): Likewise.
	* config/arc/arc.md (stack_irq_dwarf): New unspec instruction.
	* config/arc/arc.opt (mirq-ctrl-saved): New option.
	* doc/invoke.texi (mirq-ctrl-saved): Document option.

testsuite/
2017-05-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* gcc.target/arc/interrupt-5.c: Newfile.
	* gcc.target/arc/interrupt-6.c: Likewise.
	* gcc.target/arc/interrupt-7.c: Likewise.
	* gcc.target/arc/interrupt-8.c: Likewise.
	* gcc.target/arc/interrupt-9.c: Likewise.

From-SVN: r247795

2017-05-09  Richard Biener  <rguenther@suse.de>

	* gcc.dg/vect/vect-44.c: Add --param vect-max-peeling-for-alignment=0
	and adjust.
	* gcc.dg/vect/vect-50.c: Likewise.

From-SVN: r247794

	* cp-tree.h (CONSTRUCTOR_C99_COMPOUND_LITERAL): New.
	(enum fcl_t): New.
	* semantics.c (finish_compound_literal): Add fcl_context parameter.
	Only make a static variable for C99 syntax.
	* parser.c (cp_parser_postfix_expression): Pass it.
	* pt.c (tsubst_copy_and_build): Likewise.
	* call.c (extend_ref_init_temps): Set
	DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.

From-SVN: r247793

	* ipa-devirt.c (default_hash_traits<type_pair>): Skip struct-scope
	typedefs.

From-SVN: r247791

	PR c/80525
	* c-warn.c (unwrap_c_maybe_const): New.
	(warn_logical_operator): Call it.

	* c-c++-common/Wlogical-op-1.c: Don't use -fwrapv anymore.
	* c-c++-common/Wlogical-op-2.c: New test.

From-SVN: r247786

	gcc/c/
	* c-tree.h (pushdecl): Declare.
	gcc/cp/
	* cp-lang.c (get_global_decls, cxx_pushdecl): New.
	(LANG_HOOKS_GETDECLS, LANG_HOOKS_PUSHDECL): Override.
	* name-lookup.h (pushdecl_top_level): Declare.
	gcc/c-family/
	* c-common.c (c_register_builtin_type): Use pushdecl lang_hook.
	* c-common.h (pushdecl_top_level, pushdecl): Don't declare here.
	gcc/objc/
	* objc-gnu-runtime-abi-01.c (objc_add_static_instance): Use
	pushdecl lang_hook.

From-SVN: r247785

From-SVN: r247784

2017-05-09  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (vrp_val_is_max): Adjust comment.
	(vrp_val_is_min): Likewise.
	(set_value_range_to_value): Likewise.
	(set_value_range_to_nonnegative): Likewise.
	(gimple_assign_nonzero_p): Likewise.
	(gimple_stmt_nonzero_p): Likewise.
	(vrp_int_const_binop): Likewise.  Remove unreachable case.
	(adjust_range_with_scev): Adjust comments.
	(compare_range_with_value): Likewise.
	(extract_range_from_phi_node): Likewise.
	(test_for_singularity): Likewise.

From-SVN: r247783

The test reports bogus failures because the loop variable i is declared
as int, and the constant expected in the dump doesn't fit in an int for avr.
Fixed by explicitly using __INT32_TYPE__ for targets with __SIZEOF_INT__ < 4.

gcc/testsuite/

2017-05-09  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

	* gcc.dg/tree-ssa/cunroll-13.c: Use __INT32_TYPE__ for
	for targets with __SIZEOF_INT__ < 4.

From-SVN: r247782

tree-vrp.c (get_single_symbol): Add assert that we don't get overflowed constants as invariant part.

2017-05-09  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (get_single_symbol): Add assert that we don't
	get overflowed constants as invariant part.
	(compare_values_warnv): Add comment before the TREE_NO_WARNING
	checks.  Use wi::cmp instead of recursing for integer constants.
	(compare_values): Just ignore whether we assumed undefined
	overflow instead of failing the compare.
	(extract_range_for_var_from_comparison_expr): Add comment before the
	TREE_NO_WARNING sets.
	(test_for_singularity): Likewise.
	(extract_range_from_comparison): Do not disable optimization
	when we assumed undefined overflow.
	(extract_range_basic): Remove init of unused var.

From-SVN: r247781

2017-05-09  Richard Biener  <rguenther@suse.de>

	* gcc.dg/vect/vect-50.c: Revert last change.
	* gcc.dg/vect/vect-44.c: Likewise.

From-SVN: r247780

2017-05-09  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (vrp_int_const_binop): Use wide-ints and simplify.
	(extract_range_from_multiplicative_op_1): Adjust.
	(extract_range_from_binary_expr_1): Use int_const_binop.

From-SVN: r247779

gcc/c-family/ChangeLog:

	PR translation/80280
	* c-format.h (struct format_flag_spec): Add new member.
	(T89_T): New macro.
	* c-format.c (local_tree_type_node): New global.
	(printf_flag_specs, asm_fprintf_flag_spec): Initialize new data.
	(gcc_diag_flag_specs, scanf_flag_specs, strftime_flag_specs): Ditto.
	(strfmon_flag_specs): Likewise.
	(gcc_diag_char_table, gcc_cdiag_char_table): Split up specifiers
	with distinct quoting properties.
	(gcc_tdiag_char_table, gcc_cxxdiag_char_table): Same.
	(flag_chars_t::validate): Add argument and handle bad quoting.
	(check_format_info_main): Handle quoting problems.
	(init_dynamic_diag_info): Simplify.

gcc/testsuite/ChangeLog:

	PR translation/80280
	* gcc.dg/format/gcc_diag-10.c: New test.

From-SVN: r247778

gcc/testsuite/ChangeLog:

2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/80101
	* gcc.target/powerpc/pr80101-1.c: New test.


gcc/ChangeLog:

2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/80101
	* config/rs6000/power6.md: Replace store_data_bypass_p calls with
	rs6000_store_data_bypass_p in seven define_bypass directives and
	in several comments.
	* config/rs6000/rs6000-protos.h: Add prototype for
	rs6000_store_data_bypass_p function.
	* config/rs6000/rs6000.c (rs6000_store_data_bypass_p): New
	function implements slightly different (rs6000-specific) semantics
	than store_data_bypass_p, returning false rather than aborting
	with assertion error when arguments do not satisfy the
	requirements of store data bypass.
	(rs6000_adjust_cost): Replace six calls of store_data_bypass_p with
	rs6000_store_data_bypass_p.

From-SVN: r247777

From-SVN: r247776

gcc/
2017-05-08  Max Filippov  <jcmvbkbc@gmail.com>

	* config/xtensa/xtensa-protos.h
       	(xtensa_initial_elimination_offset): New declaration.
	* config/xtensa/xtensa.c (xtensa_initial_elimination_offset):
	New function. Move its body from the INITIAL_ELIMINATION_OFFSET
	macro definition, add case for FRAME_POINTER_REGNUM when
	FRAME_GROWS_DOWNWARD.
	* config/xtensa/xtensa.h (FRAME_GROWS_DOWNWARD): New macro
	definition.
	(INITIAL_ELIMINATION_OFFSET): Replace body with call to
	xtensa_initial_elimination_offset.

From-SVN: r247771

From-SVN: r247760

gcc/ChangeLog:

	PR translation/80280
	* config/sol2-c.c (solaris_pragma_align): Correct quoting.

From-SVN: r247758

	* tree.c (type_has_nontrivial_copy_init): True for classes with only
	deleted copy/move ctors.
	(remember_deleted_copy, maybe_warn_parm_abi): New.
	* decl.c (require_complete_types_for_parms, check_function_type):
	Call maybe_warn_parm_abi.
	* call.c (convert_for_arg_passing, build_cxx_call): Likewise.

From-SVN: r247757

	* c-opts.c (c_common_post_options): Update defaults for
	flag_abi_version and flag_abi_compat_version.

From-SVN: r247756

2017-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/79930
	* frontend-passes.c (matmul_to_var_expr): New function,
	add prototype.
	(matmul_to_var_code):  Likewise.
	(optimize_namespace):  Use them from gfc_code_walker.

2017-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/79930
	* gfortran.dg/inline_transpose_1.f90:  Add
	-finline-matmul-limit=0 to options.
	* gfortran.dg/matmul_5.f90:  Likewise.
	* gfortran.dg/vect/vect-8.f90: Likewise.
	* gfortran.dg/inline_matmul_14.f90:  New test.
	* gfortran.dg/inline_matmul_15.f90:  New test.

From-SVN: r247755

	* decl.c (builtin_function_1): Set DCL_ANTICIPATED before pushing.
	(start_preparsed_function): Do decl pushing before setting
	current_funciton_decl and announcing it.

From-SVN: r247754

2017-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/80602
	* m4/matmul_internal.m4:  'matmul_name`:  Change
	t1 to a VLA of the required size.
        * generated/matmul_c10.c: Regenerated.
        * generated/matmul_c16.c: Regenerated.
        * generated/matmul_c4.c: Regenerated.
        * generated/matmul_c8.c: Regenerated.
        * generated/matmul_i1.c: Regenerated.
        * generated/matmul_i16.c: Regenerated.
        * generated/matmul_i2.c: Regenerated.
        * generated/matmul_i4.c: Regenerated.
        * generated/matmul_i8.c: Regenerated.
        * generated/matmul_r10.c: Regenerated.
        * generated/matmul_r16.c: Regenerated.
        * generated/matmul_r4.c: Regenerated.
        * generated/matmul_r8.c: Regenerated.

2017-05-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/80602
	* gfortran.dg/matmul_15.f90:  New test case.

From-SVN: r247753

	* name-lookup.h (pushdecl_with_scope): Replace with ...
	(pushdecl_outermost_localscope): ... this.
	* name-lookup.c (pushdecl_with_scope): Replace with ...
	(pushdecl_outermost_localscope): ... this.
	(pushdecl_namespace_level): Adjust.
	* decl.c (cp_make_fname_decl): Use pushdecl_outermost_localscope.
	* lambda.c (insert_capture_proxy): Likewise.

From-SVN: r247752

2017-05-08  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * target.def (compute_frame_layout): New optional target hook.
        * doc/tm.texi.in (TARGET_COMPUTE_FRAME_LAYOUT): Add hook.
        * doc/tm.texi (TARGET_COMPUTE_FRAME_LAYOUT): Add documentation.
        * lra-eliminations.c (update_reg_eliminate): Call compute_frame_layout
        target hook.
        * reload1.c (verify_initial_elim_offsets): Likewise.
        * config/arm/arm.c (TARGET_COMPUTE_FRAME_LAYOUT): Define.
        (use_simple_return_p): Call arm_compute_frame_layout if needed.
        (arm_get_frame_offsets): Split up into this ...
        (arm_compute_frame_layout): ... and this function.

From-SVN: r247750

	* include/std/optional: Use a separate static_assert per condition.
	* testsuite/20_util/optional/cons/value_neg.cc: Update dg-error line
	numbers.

From-SVN: r247748

	* class.c (build_vtbl_initializer): Don't shadow outer variable
	with static var.

From-SVN: r247747

The movsi and movdi constraints allowed the source to be any
absolute symbolic expression ("S").  That's OK for operands that
have already been vetted by the aarch64_mov_operand predicate but
causes problems if the register allocator substitutes an equivalence
(the usual "the constraints can't accept more than the predicates"
restriction).

Although all other uses of "S" in the backend are redundant and could
in principle be removed, "S" itself is a publicly-documented constraint
and so we'd have to keep its definition.  This patch therefore adds a
new "Usa" constraint for legitimate absolute address operands.

2017-05-08  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/constraints.md (Usa): New constraint.
	* config/aarch64/aarch64.md (*movsi_aarch64, *movdi_aarch64): Use it.

From-SVN: r247746

	* name-lookup.h (get_namespace_value, set_global_value): Rename to
	...
	(get_namespace_binding, set_global_binding): ... these.
	* name-lookup.c (get_namespace_value, set_global_value): Rename to
	...
	(get_namespace_binding, set_global_binding): ... these.
	(arg_assoc_namespace, pushdecl_maybe_friend_1)
	check_for_out_of_scope_variable, push_overloaded_decl_1,
	lookup_name_innermost_nonclass_level, push_namespace): Adjust.
	* cp-tree.h (IDENTIFIER_GLOBAL_VALUE)
	SET_IDENTIFIER_GLOBAL_VALUE): Adjust.
	* decl.c (poplevel): Adjust.
	* pt.c (make_constrained_auto): Likewise.
((--This line, and those below, will be ignored--

M    cp/cp-tree.h
M    cp/name-lookup.c
M    cp/name-lookup.h
M    cp/decl.c
M    cp/ChangeLog
M    cp/pt.c

From-SVN: r247745

From-SVN: r247743

	* doc/xml/manual/mt_allocator.xml: Clarify deallocation behaviour.
	* doc/html/*: Regenerate.

From-SVN: r247742

TM_MULTILIB_CONFIG is not set in config.gcc when building with multilib
for arm targets, leading to config/arm/t-multilib not including any of
the files (t-aprofile and t-rmprofile) definining the architecture and
FPU to build multilib for. This patch fixes that by setting
TM_MULTILIB_CONFIG to with_multilib_list's value after it has been
checked. It also fix a trailing whitespace issue.

2017-05-08  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config.gcc (arm*-*-*): Set TM_MULTILIB_CONFIG from
    with_multilib_list after it has been checked.

From-SVN: r247741

2017-05-08  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (bitmap_set_and): Avoid bitmap copy.
	(bitmap_set_subtract_values): Likewise.

From-SVN: r247739

2017-05-08  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (gimple_assign_nonzero_warnv_p): Rename to ...
	(gimple_assign_nonzero): ... this and remove strict_overflow_p
	argument.
	(gimple_stmt_nonzero_warnv_p): Rename to ...
	(gimple_stmt_nonzero_p): ... this and remove strict_overflow_p
	argument.
	(vrp_stmt_computes_nonzero): Remove strict_overflow_p argument.
	(extract_range_basic): Adjust, do not disable propagation on
	strict overflow sensitive simplification.
	(vrp_visit_cond_stmt): Likewise.

From-SVN: r247738

This fixes a few failures on ARM and AArch64 due to a recent change in
alignment peeling by switching the vector cost model off.

Tested on AArch64, ARM and x64 - committed as obvious.

    testsuite/
	* gcc.dg/vect/vect-44.c: Add -fno-vect-cost-model.
	* gcc.dg/vect/vect-50.c: Likewise.

From-SVN: r247737

From-SVN: r247733

	* ipa-inline-analysis.c (estimate_function_body_sizes): Recompute
	body size unconditionally.

From-SVN: r247729

        PR translation/80280
        * call.c (print_z_candidate): Fix quoting.

From-SVN: r247728

2017-05-07  Jeff Law  <law@redhat.com>

	Revert:
	2017-05-06  Jeff Law  <law@redhat.com>
	PR tree-optimization/78496
	* tree-vrp.c (simplify_assert_expr_using_ranges): Remove debugging
	code.

	PR tree-optimization/78496
	* tree-vrp.c (simplify_assert_expr_using_ranges): New function.
	(simplify_stmt_using_ranges): Call it.
	(vrp_dom_walker::before_dom_children): Extract equivalences
	from an ASSERT_EXPR with an equality comparison against a
	constant.

	Revert:
	2017-05-06  Jeff Law  <law@redhat.com>
	PR tree-optimization/78496
	* gcc.dg/tree-ssa/ssa-thread-16.c: New test.
	* gcc.dg/tree-ssa/ssa-thread-17.c: New test.

From-SVN: r247727