Reduce lookup_attribute memory footprint.

2017-09-12  Martin Liska  <mliska@suse.cz>

* attribs.c (private_lookup_attribute): New function.
* attribs.h (private_lookup_attribute): Declared here.
(lookup_attribute): Called from this place.

From-SVN: r252022

re PR tree-optimization/82157 (ICE on valid code at -O2 and -O3: cannot update SSA form)

2017-09-12  Richard Biener  <rguenther@suse.de>

PR tree-optimization/82157
* tree-ssa-pre.c (remove_dead_inserted_code): Do not remove
stmts with side-effects.

* gcc.dg/torture/pr82157.c: New testcase.

From-SVN: r252020

PR libstdc++/79433 no #error for including TS headers with wrong -std

PR libstdc++/79433
* include/Makefile.am: Remove <bits/c++14_warning.h>.
* include/Makefile.in: Regenerate.
* include/bits/c++14_warning.h: Remove.
* include/experimental/algorithm: Do not include <c++14_warning.h>.
* include/experimental/any: Likewise.
* include/experimental/array: Likewise.
* include/experimental/bits/erase_if.h: Likewise.
* include/experimental/bits/lfts_config.h: Likewise.
* include/experimental/bits/shared_ptr.h: Likewise.
* include/experimental/bits/string_view.tcc: Likewise.
* include/experimental/chrono: Likewise.
* include/experimental/deque: Likewise.
* include/experimental/filesystem: Do not include <c++0x_warning.h>.
* include/experimental/forward_list: Do not include <c++14_warning.h>.
* include/experimental/functional: Likewise.
* include/experimental/iterator: Likewise.
* include/experimental/list: Likewise.
* include/experimental/map: Likewise.
* include/experimental/memory: Likewise.
* include/experimental/numeric: Likewise.
* include/experimental/optional: Likewise.
* include/experimental/propagate_const: Likewise.
* include/experimental/ratio: Likewise.
* include/experimental/regex: Likewise.
* include/experimental/set: Likewise.
* include/experimental/string: Likewise.
* include/experimental/string_view: Likewise.
* include/experimental/system_error: Likewise.
* include/experimental/tuple: Likewise.
* include/experimental/type_traits: Likewise.
* include/experimental/unordered_map: Likewise.
* include/experimental/unordered_set: Likewise.
* include/experimental/vector: Likewise.
* testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error
line number.
* testsuite/experimental/array/neg.cc: Likewise.
* testsuite/experimental/propagate_const/assignment/move_neg.cc:
Likewise.
* testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
* testsuite/experimental/propagate_const/requirements2.cc: Likewise.
* testsuite/experimental/propagate_const/requirements3.cc: Likewise.
* testsuite/experimental/propagate_const/requirements4.cc: Likewise.
* testsuite/experimental/propagate_const/requirements5.cc: Likewise.

From-SVN: r252019

PR libstdc++/79433 no #error for including headers with wrong -std

PR libstdc++/79433
* doc/xml/manual/status_cxx2017.xml: Update feature-test macros.
* doc/html/*: Regenerate.
* include/Makefile.am: Remove <bits/c++17_warning.h>.
* include/Makefile.in: Regenerate.
* include/bits/c++17_warning.h: Remove.
* include/bits/string_view.tcc: Do not include <bits/c++17_warning.h>
for pre-C++17 modes.
* include/std/any: Likewise.
(__cpp_lib_any): Define.
* include/std/mutex (__cpp_lib_scoped_lock): Adjust value as per new
SD-6 draft.
* include/std/numeric (__cpp_lib_gcd_lcm): Define as per new SD-6
draft.
* include/std/optional: Do not include <bits/c++17_warning.h>.
(__cpp_lib_optional): Define.
* include/std/shared_mutex: Do not include <bits/c++14_warning.h>.
* include/std/string_view: Do not include <bits/c++17_warning.h>.
(__cpp_lib_string_view): Define.
* include/std/variant: Do not include <bits/c++17_warning.h>.
(__cpp_lib_variant): Define.
* testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error line
numbers.
* testsuite/26_numerics/gcd/1.cc: Test for __cpp_lib_gcd_lcm.
* testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line
numbers.
* testsuite/26_numerics/lcm/1.cc: Test for __cpp_lib_gcd_lcm.
* testsuite/26_numerics/lcm/lcm_neg.cc: Adjust dg-error line
numbers.
* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Adjust
expected value of __cpp_lib_scoped_lock.

From-SVN: r252018

PR libstdc++/70483 make std::experimental::string_view fully constexpr

PR libstdc++/70483
* include/experimental/bits/string_view.tcc (basic_string_view::find)
(basic_string_view::rfind, basic_string_view::find_first_of)
(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
(basic_string_view::find_last_not_of): Add constexpr specifier.
* include/experimental/string_view (basic_string_view::remove_prefix)
(basic_string_view::remove_suffix, basic_string_view::swap)
(basic_string_view::compare, basic_string_view::find)
(basic_string_view::rfind, basic_string_view::find_first_of)
(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
(basic_string_view::find_last_not_of, operator==, operator!=)
(operator<, operator>, operator<=, operator>=): Likewise.
* testsuite/experimental/string_view/operations/compare/char/70483.cc:
New.

From-SVN: r252017

Turn HARD_REGNO_NREGS into a target hook

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>
    Alan Hayward  <alan.hayward@arm.com>
    David Sherwood <david.sherwood@arm.com>

gcc/
* target.def (hard_regno_nregs): New hook.
(class_max_nregs): Refer to it instead of HARD_REGNO_NREGS.
* targhooks.h (default_hard_regno_nregs): Declare.
* targhooks.c (default_hard_regno_nregs): New function.
* doc/tm.texi.in (HARD_REGNO_NREGS): Replace with...
(TARGET_HARD_REGNO_NREGS): ...this hook.
(HARD_REGNO_NREGS_HAS_PADDING): Update accordingly.
(CLASS_MAX_NREGS): Likewise.
* doc/tm.texi: Regenerate.
* reginfo.c (init_reg_modes_target): Use targetm.hard_regno_nregs
instead of HARD_REGNO_NREGS.
* rtl.h (REG_NREGS): Refer to TARGET_HARD_REGNO_NREGS rather than
HARD_REGNO_NREGS in the comment.
* config/aarch64/aarch64.h (HARD_REGNO_NREGS): Delete.
* config/aarch64/aarch64-protos.h (aarch64_hard_regno_nregs): Delete.
* config/aarch64/aarch64.c (aarch64_hard_regno_nregs): Make static.
Return an unsigned int.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/alpha/alpha.h (HARD_REGNO_NREGS): Delete.
* config/arc/arc.h (HARD_REGNO_NREGS): Delete.
* config/arc/arc.c (TARGET_HARD_REGNO_NREGS): Redefine.
(arc_hard_regno_nregs): New function.
* config/arm/arm.h (HARD_REGNO_NREGS): Delete.
* config/arm/arm.c (TARGET_HARD_REGNO_NREGS): Redefine.
(arm_hard_regno_nregs): New function.
* config/avr/avr.h (HARD_REGNO_NREGS): Delete.
* config/bfin/bfin.h (HARD_REGNO_NREGS): Delete.
* config/bfin/bfin.c (bfin_hard_regno_nregs): New function.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/c6x/c6x.h (HARD_REGNO_NREGS): Delete.
* config/cr16/cr16.h (LONG_REG_P): Use targetm.hard_regno_nregs.
(HARD_REGNO_NREGS): Delete.
* config/cr16/cr16.c (TARGET_HARD_REGNO_NREGS): Redefine.
(cr16_hard_regno_nregs): New function.
(cr16_memory_move_cost): Use it instead of HARD_REGNO_NREGS.
* config/cris/cris.h (HARD_REGNO_NREGS): Delete.
* config/cris/cris.c (TARGET_HARD_REGNO_NREGS): Redefine.
(cris_hard_regno_nregs): New function.
* config/epiphany/epiphany.h (HARD_REGNO_NREGS): Delete.
* config/fr30/fr30.h (HARD_REGNO_NREGS): Delete.
(CLASS_MAX_NREGS): Use targetm.hard_regno_nregs.
* config/frv/frv.h (HARD_REGNO_NREGS): Delete.
(CLASS_MAX_NREGS): Remove outdated copy of documentation.
* config/frv/frv-protos.h (frv_hard_regno_nregs): Delete.
* config/frv/frv.c (TARGET_HARD_REGNO_NREGS): Redefine.
(frv_hard_regno_nregs): Make static.  Take and return an
unsigned int.
(frv_class_max_nregs): Remove outdated copy of documentation.
* config/ft32/ft32.h (HARD_REGNO_NREGS): Delete.
* config/h8300/h8300.h (HARD_REGNO_NREGS): Delete.
* config/h8300/h8300-protos.h (h8300_hard_regno_nregs): Delete.
* config/h8300/h8300.c (h8300_hard_regno_nregs): Delete.
* config/i386/i386.h (HARD_REGNO_NREGS): Delete.
* config/i386/i386.c (ix86_hard_regno_nregs): New function.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/ia64/ia64.h (HARD_REGNO_NREGS): Delete.
(CLASS_MAX_NREGS): Update comment.
* config/ia64/ia64.c (TARGET_HARD_REGNO_NREGS): Redefine.
(ia64_hard_regno_nregs): New function.
* config/iq2000/iq2000.h (HARD_REGNO_NREGS): Delete.
* config/lm32/lm32.h (HARD_REGNO_NREGS): Delete.
* config/m32c/m32c.h (HARD_REGNO_NREGS): Delete.
* config/m32c/m32c-protos.h (m32c_hard_regno_nregs): Delete.
* config/m32c/m32c.c (m32c_hard_regno_nregs_1): Take and return
an unsigned int.
(m32c_hard_regno_nregs): Likewise.  Make static.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/m32r/m32r.h (HARD_REGNO_NREGS): Delete.
* config/m68k/m68k.h (HARD_REGNO_NREGS): Delete.
* config/m68k/m68k.c (TARGET_HARD_REGNO_NREGS): Redefine.
(m68k_hard_regno_nregs): New function.
* config/mcore/mcore.h (HARD_REGNO_NREGS): Delete.
* config/microblaze/microblaze.h (HARD_REGNO_NREGS): Delete.
* config/mips/mips.h (HARD_REGNO_NREGS): Delete.
* config/mips/mips-protos.h (mips_hard_regno_nregs): Delete.
* config/mips/mips.c (mips_hard_regno_nregs): Make static.
Take and return an unsigned int.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/mmix/mmix.h (HARD_REGNO_NREGS): Delete.
(CLASS_MAX_NREGS): Use targetm.hard_regno_nregs.
* config/mn10300/mn10300.h (HARD_REGNO_NREGS): Delete.
* config/moxie/moxie.h (HARD_REGNO_NREGS): Delete.
* config/msp430/msp430.h (HARD_REGNO_NREGS): Delete.
* config/msp430/msp430-protos.h (msp430_hard_regno_nregs): Delete.
* config/msp430/msp430.c (TARGET_HARD_REGNO_NREGS): Redefine.
(msp430_hard_regno_nregs): Make static.  Take and return an
unsigned int.
* config/nds32/nds32.h (HARD_REGNO_NREGS): Delete.
* config/nds32/nds32-protos.h (nds32_hard_regno_nregs): Delete.
* config/nds32/nds32.c (nds32_hard_regno_nregs): Delete.
(nds32_hard_regno_mode_ok): Use targetm.hard_regno_nregs.
* config/nios2/nios2.h (HARD_REGNO_NREGS): Delete.
* config/nvptx/nvptx.h (HARD_REGNO_NREGS): Delete.
* config/nvptx/nvptx.c (nvptx_hard_regno_nregs): New function.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/pa/pa32-regs.h (HARD_REGNO_NREGS): Rename to...
(PA_HARD_REGNO_NREGS): ...this.
* config/pa/pa64-regs.h (HARD_REGNO_NREGS): Rename to...
(PA_HARD_REGNO_NREGS): ...this.
* config/pa/pa.c (TARGET_HARD_REGNO_NREGS): Redefine.
(pa_hard_regno_nregs): New function.
* config/pdp11/pdp11.h (HARD_REGNO_NREGS): Delete.
* config/pdp11/pdp11.c (TARGET_HARD_REGNO_NREGS): Redefine.
(pdp11_hard_regno_nregs): New function.
* config/powerpcspe/powerpcspe.h (HARD_REGNO_NREGS): Delete.
* config/powerpcspe/powerpcspe.c (TARGET_HARD_REGNO_NREGS): Redefine.
(rs6000_hard_regno_nregs_hook): New function.
* config/riscv/riscv.h (HARD_REGNO_NREGS): Delete.
* config/riscv/riscv-protos.h (riscv_hard_regno_nregs): Delete.
* config/riscv/riscv.c (riscv_hard_regno_nregs): Make static.
Take and return an unsigned int.  Move earlier in file.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/rl78/rl78.h (HARD_REGNO_NREGS): Delete.
* config/rl78/rl78-protos.h (rl78_hard_regno_nregs): Delete.
* config/rl78/rl78.c (TARGET_HARD_REGNO_NREGS): Reefine.
(rl78_hard_regno_nregs): Make static.  Take and return an
unsigned int.
* config/rs6000/rs6000.h (HARD_REGNO_NREGS): Delete.
* config/rs6000/rs6000.c (TARGET_HARD_REGNO_NREGS): Redefine.
(rs6000_hard_regno_nregs_hook): New function.
* config/rx/rx.h (HARD_REGNO_NREGS): Delete.
* config/rx/rx.c (rx_hard_regno_nregs): New function.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/s390/s390.h (HARD_REGNO_NREGS): Delete.
* config/s390/s390.c (REGNO_PAIR_OK): Use s390_hard_regno_nregs
instead of HARD_REGNO_NREGS.
(s390_hard_regno_nregs): New function.
(s390_hard_regno_mode_ok): Add comment from s390.h.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/sh/sh.h (HARD_REGNO_NREGS): Delete.
* config/sh/sh.c (TARGET_HARD_REGNO_NREGS): Redefine.
(sh_hard_regno_nregs): New function.
(sh_pass_in_reg_p): Use it.
* config/sparc/sparc.h (HARD_REGNO_NREGS): Delete.
* config/sparc/sparc.c (TARGET_HARD_REGNO_NREGS): Redefine.
(sparc_hard_regno_nregs): New function.
* config/spu/spu.h (HARD_REGNO_NREGS): Delete.
* config/spu/spu.c (spu_hard_regno_nregs): New function.
(spu_function_arg_advance): Use it, supplying a valid register number.
(TARGET_HARD_REGNO_NREGS): Redefine.
* config/stormy16/stormy16.h (HARD_REGNO_NREGS): Delete.
* config/tilegx/tilegx.h (HARD_REGNO_NREGS): Delete.
* config/tilepro/tilepro.h (HARD_REGNO_NREGS): Delete.
* config/v850/v850.h (HARD_REGNO_NREGS): Delete.
* config/vax/vax.h (HARD_REGNO_NREGS): Delete.
* config/visium/visium.h (HARD_REGNO_NREGS): Delete.
(CLASS_MAX_NREGS): Remove copy of old documentation.
* config/visium/visium.c (TARGET_HARD_REGNO_NREGS): Redefine.
(visium_hard_regno_nregs): New function.
(visium_hard_regno_mode_ok): Use it instead of HARD_REGNO_NREGS.
* config/xtensa/xtensa.h (HARD_REGNO_NREGS): Delete.
* config/xtensa/xtensa.c (TARGET_HARD_REGNO_NREGS): Redefine.
xtensa_hard_regno_nregs): New function.
* system.h (HARD_REGNO_NREGS): Poison.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r252016

Use hard_regno_nregs instead of HARD_REGNO_NREGS

This patch converts some places that use HARD_REGNO_NREGS to use
hard_regno_nregs, in places where the initialisation has obviously
already taken place.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* config/arm/arm.h (THUMB_SECONDARY_INPUT_RELOAD_CLASS): Use
hard_regno_nregs instead of HARD_REGNO_NREGS.
(THUMB_SECONDARY_OUTPUT_RELOAD_CLASS): Likewise.
* config/c6x/c6x.c (c6x_expand_prologue): Likewise.
(c6x_expand_epilogue): Likewise.
* config/frv/frv.c (frv_alloc_temp_reg): Likewise.
(frv_read_iacc_argument): Likewise.
* config/sh/sh.c: Include regs.h.
(sh_print_operand): Use hard_regno_nregs instead of HARD_REGNO_NREGS.
(regs_used): Likewise.
(output_stack_adjust): Likewise.
* config/xtensa/xtensa.c (xtensa_copy_incoming_a7): Likewise.
* expmed.c: Include regs.h.
(store_bit_field_1): Use hard_regno_nregs instead of HARD_REGNO_NREGS.
* ree.c: Include regs.h.
(combine_reaching_defs): Use hard_regno_nregs instead of
HARD_REGNO_NREGS.
(add_removable_extension): Likewise.

From-SVN: r252015

Convert hard_regno_nregs to a function

This patch converts hard_regno_nregs into an inline function, which
in turn allows hard_regno_nregs to be used as the name of a targetm
field.  This is just a mechanical change.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* regs.h (hard_regno_nregs): Turn into a function.
(end_hard_regno): Update accordingly.
* caller-save.c (setup_save_areas): Likewise.
(save_call_clobbered_regs): Likewise.
(replace_reg_with_saved_mem): Likewise.
(insert_restore): Likewise.
(insert_save): Likewise.
* combine.c (can_change_dest_mode): Likewise.
(move_deaths): Likewise.
(distribute_notes): Likewise.
* config/mips/mips.c (mips_hard_regno_call_part_clobbered): Likewise.
* config/powerpcspe/powerpcspe.c (rs6000_cannot_change_mode_class)
(rs6000_split_multireg_move): Likewise.
(rs6000_register_move_cost): Likewise.
(rs6000_memory_move_cost): Likewise.
* config/rs6000/rs6000.c (rs6000_cannot_change_mode_class): Likewise.
(rs6000_split_multireg_move): Likewise.
(rs6000_register_move_cost): Likewise.
(rs6000_memory_move_cost): Likewise.
* cselib.c (cselib_reset_table): Likewise.
(cselib_lookup_1): Likewise.
* emit-rtl.c (set_mode_and_regno): Likewise.
* function.c (aggregate_value_p): Likewise.
* ira-color.c (setup_profitable_hard_regs): Likewise.
(check_hard_reg_p): Likewise.
(calculate_saved_nregs): Likewise.
(assign_hard_reg): Likewise.
(improve_allocation): Likewise.
(calculate_spill_cost): Likewise.
* ira-emit.c (modify_move_list): Likewise.
* ira-int.h (ira_hard_reg_set_intersection_p): Likewise.
(ira_hard_reg_in_set_p): Likewise.
* ira.c (setup_reg_mode_hard_regset): Likewise.
(clarify_prohibited_class_mode_regs): Likewise.
(check_allocation): Likewise.
* lra-assigns.c (find_hard_regno_for_1): Likewise.
(lra_setup_reg_renumber): Likewise.
(setup_try_hard_regno_pseudos): Likewise.
(spill_for): Likewise.
(assign_hard_regno): Likewise.
(setup_live_pseudos_and_spill_after_risky_transforms): Likewise.
* lra-constraints.c (in_class_p): Likewise.
(lra_constraint_offset): Likewise.
(simplify_operand_subreg): Likewise.
(lra_constraints): Likewise.
(split_reg): Likewise.
(split_if_necessary): Likewise.
(invariant_p): Likewise.
(inherit_in_ebb): Likewise.
* lra-lives.c (process_bb_lives): Likewise.
* lra-remat.c (reg_overlap_for_remat_p): Likewise.
(get_hard_regs): Likewise.
(do_remat): Likewise.
* lra-spills.c (assign_spill_hard_regs): Likewise.
* mode-switching.c (create_pre_exit): Likewise.
* postreload.c (reload_combine_recognize_pattern): Likewise.
* recog.c (peep2_find_free_register): Likewise.
* regcprop.c (kill_value_regno): Likewise.
(set_value_regno): Likewise.
(copy_value): Likewise.
(maybe_mode_change): Likewise.
(find_oldest_value_reg): Likewise.
(copyprop_hardreg_forward_1): Likewise.
* regrename.c (check_new_reg_p): Likewise.
(regrename_do_replace): Likewise.
* reload.c (push_reload): Likewise.
(combine_reloads): Likewise.
(find_dummy_reload): Likewise.
(operands_match_p): Likewise.
(find_reloads): Likewise.
(find_equiv_reg): Likewise.
(reload_adjust_reg_for_mode): Likewise.
* reload1.c (count_pseudo): Likewise.
(count_spilled_pseudo): Likewise.
(find_reg): Likewise.
(clear_reload_reg_in_use): Likewise.
(free_for_value_p): Likewise.
(allocate_reload_reg): Likewise.
(choose_reload_regs): Likewise.
(reload_adjust_reg_for_temp): Likewise.
(emit_reload_insns): Likewise.
(delete_output_reload): Likewise.
* rtlanal.c (subreg_get_info): Likewise.
* sched-deps.c (sched_analyze_reg): Likewise.
* sel-sched.c (init_regs_for_mode): Likewise.
(mark_unavailable_hard_regs): Likewise.
(choose_best_reg_1): Likewise.
(verify_target_availability): Likewise.
* valtrack.c (dead_debug_insert_temp): Likewise.
* var-tracking.c (track_loc_p): Likewise.
(emit_note_insn_var_location): Likewise.
* varasm.c (make_decl_rtl): Likewise.
* reginfo.c (choose_hard_reg_mode): Likewise.
(init_reg_modes_target): Refer directly to
this_target_regs->x_hard_regno_nregs.

From-SVN: r252014

Make more use of in_hard_reg_set_p

An upcoming patch will convert hard_regno_nregs into an inline
function, which in turn allows hard_regno_nregs to be used as the
name of a targetm field.  This patch rewrites a use that can use
in_hard_reg_set_p instead.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* ira-costs.c (record_operand_costs): Use in_hard_reg_set_p
instead of hard_regno_nregs.

From-SVN: r252013

Make more use of end_hard_regno

An upcoming patch will convert hard_regno_nregs into an inline
function, which in turn allows hard_regno_nregs to be used as the
name of a targetm field.  This patch rewrites uses that can use
end_hard_regno instead.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Use
end_hard_regno instead of hard_regno_nregs.
* config/s390/s390.c (s390_reg_clobbered_rtx): Likewise.
* config/sparc/sparc.h (ASM_DECLARE_REGISTER_GLOBAL): Likewise.
* config/visium/visium.c (visium_hard_regno_mode_ok): Likewise.
* ira-color.c (improve_allocation): Likewise.
* lra-assigns.c (find_hard_regno_for_1): Likewise.
* lra-lives.c (mark_regno_live): Likewise.
(mark_regno_dead): Likewise.
* lra-remat.c (operand_to_remat): Likewise.
* lra.c (collect_non_operand_hard_regs): Likewise.
* postreload.c (reload_combine_note_store): Likewise.
(move2add_valid_value_p): Likewise.
* reload.c (regno_clobbered_p): Likewise.

From-SVN: r252012

Make more use of END_REGNO

An upcoming patch will convert hard_regno_nregs into an inline
function, which in turn allows hard_regno_nregs to be used as the
name of a targetm field.  This patch rewrites uses that are more
easily (and efficiently) written as END_REGNO.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* config/frv/frv.c (FOR_EACH_REGNO): Use END_REGNO instead of
hard_regno_nregs.
* config/v850/v850.c (v850_reorg): Likewise.
* reload.c (refers_to_regno_for_reload_p): Likewise.
(find_equiv_reg): Likewise.
* reload1.c (reload_reg_reaches_end_p): Likewise.

From-SVN: r252011

Make more use of REG_NREGS

An upcoming patch will convert hard_regno_nregs into an inline
function, which in turn allows hard_regno_nregs to be used as the
name of a targetm field.  This patch rewrites uses that are more
easily (and efficiently) written as REG_NREGS.

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* caller-save.c (add_used_regs): Use REG_NREGS instead of
hard_regno_nregs.
* config/aarch64/aarch64.c (aarch64_split_combinev16qi): Likewise.
* config/arm/arm.c (output_move_neon): Likewise.
(arm_attr_length_move_neon): Likewise.
(neon_split_vcombine): Likewise.
* config/c6x/c6x.c (c6x_mark_reg_read): Likewise.
(c6x_mark_reg_written): Likewise.
(c6x_dwarf_register_span): Likewise.
* config/i386/i386.c (ix86_save_reg): Likewise.
* config/ia64/ia64.c (mark_reg_gr_used_mask): Likewise.
(rws_access_reg): Likewise.
* config/s390/s390.c (s390_call_saved_register_used): Likewise.
* mode-switching.c (create_pre_exit): Likewise.
* ree.c (combine_reaching_defs): Likewise.
(add_removable_extension): Likewise.
* regcprop.c (find_oldest_value_reg): Likewise.
(copyprop_hardreg_forward_1): Likewise.
* reload.c (reload_inner_reg_of_subreg): Likewise.
(push_reload): Likewise.
(combine_reloads): Likewise.
(find_dummy_reload): Likewise.
(reload_adjust_reg_for_mode): Likewise.
* reload1.c (find_reload_regs): Likewise.
(forget_old_reloads_1): Likewise.
(reload_reg_free_for_value_p): Likewise.
(reload_adjust_reg_for_temp): Likewise.
(emit_reload_insns): Likewise.
(delete_output_reload): Likewise.
* sel-sched.c (choose_best_reg_1): Likewise.
(choose_best_pseudo_reg): Likewise.

From-SVN: r252010

Turn SLOW_UNALIGNED_ACCESS into a target hook

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>
    Alan Hayward  <alan.hayward@arm.com>
    David Sherwood <david.sherwood@arm.com>

gcc/
* defaults.h (SLOW_UNALIGNED_ACCESS): Delete.
* target.def (slow_unaligned_access): New hook.
* targhooks.h (default_slow_unaligned_access): Declare.
* targhooks.c (default_slow_unaligned_access): New function.
* doc/tm.texi.in (SLOW_UNALIGNED_ACCESS): Replace with...
(TARGET_SLOW_UNALIGNED_ACCESS): ...this.
* doc/tm.texi: Regenerate.
* config/alpha/alpha.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/arm/arm.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/i386/i386.h (SLOW_UNALIGNED_ACCESS): Delete commented-out
definition.
* config/powerpcspe/powerpcspe.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/powerpcspe/powerpcspe.c (TARGET_SLOW_UNALIGNED_ACCESS):
Redefine.
(rs6000_slow_unaligned_access): New function.
(rs6000_emit_move): Use it instead of SLOW_UNALIGNED_ACCESS.
(expand_block_compare): Likewise.
(expand_strn_compare): Likewise.
(rs6000_rtx_costs): Likewise.
* config/riscv/riscv.h (SLOW_UNALIGNED_ACCESS): Delete.
(riscv_slow_unaligned_access): Likewise.
* config/riscv/riscv.c (riscv_slow_unaligned_access): Rename to...
(riscv_slow_unaligned_access_p): ...this and make static.
(riscv_option_override): Update accordingly.
(riscv_slow_unaligned_access): New function.
(TARGET_SLOW_UNALIGNED_ACCESS): Redefine.
* config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/rs6000/rs6000.c (TARGET_SLOW_UNALIGNED_ACCESS): Redefine.
(rs6000_slow_unaligned_access): New function.
(rs6000_emit_move): Use it instead of SLOW_UNALIGNED_ACCESS.
(rs6000_rtx_costs): Likewise.
* config/rs6000/rs6000-string.c (expand_block_compare)
(expand_strn_compare): Use targetm.slow_unaligned_access instead
of SLOW_UNALIGNED_ACCESS.
* config/tilegx/tilegx.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/tilepro/tilepro.h (SLOW_UNALIGNED_ACCESS): Delete.
* calls.c (expand_call): Use targetm.slow_unaligned_access instead
of SLOW_UNALIGNED_ACCESS.
* expmed.c (simple_mem_bitfield_p): Likewise.
* expr.c (alignment_for_piecewise_move): Likewise.
(emit_group_load_1): Likewise.
(emit_group_store): Likewise.
(copy_blkmode_from_reg): Likewise.
(emit_push_insn): Likewise.
(expand_assignment): Likewise.
(store_field): Likewise.
(expand_expr_real_1): Likewise.
* gimple-fold.c (gimple_fold_builtin_memory_op): Likewise.
* lra-constraints.c (simplify_operand_subreg): Likewise.
* stor-layout.c (bit_field_mode_iterator::next_mode): Likewise.
* gimple-ssa-store-merging.c: Likewise in block comment at start
of file.
* tree-ssa-strlen.c: Include target.h.
(handle_builtin_memcmp): Use targetm.slow_unaligned_access instead
of SLOW_UNALIGNED_ACCESS.
* system.h (SLOW_UNALIGNED_ACCESS): Poison.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r252009

PR81285: Fix uninitialised variable in emit_store_flag_int

2017-09-12  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
PR rtl-optimization/82185
* expmed.c (emit_store_flag_int): Only test tem if it has been
initialized.

From-SVN: r252008

re PR middle-end/82149 (match.pd: 2919: bad if test ?)

2017-09-12  Richard Biener  <rguenther@suse.de>

PR middle-end/82149
* match.pd ((FTYPE) N CMP CST): Fix typo.

From-SVN: r252007

Add short_call function attribute for MIPS

gcc/
* config/mips/mips.c (mips_attribute_table): Add 'short_call'
attribute.
(mips_near_type_p): Add 'short_call' attribute as a synonym
for 'near'.
* doc/extend.texi (short_call): Document new function attribute.

gcc/testsuite

* gcc.target/mips/near-far-1.c: Add check for 'short_call'
attribute.
* gcc.target/mips/near-far-2.c: Likewise.
* gcc.target/mips/near-far-3.c: Likewise.
* gcc.target/mips/near-far-4.c: Likewise.

From-SVN: r252006

Kill CLASSTYPE_SORTED_FIELDS.

* cp-tree.h (struct lang_type): Lose sorted_fields member.
(CLASSTYPE_SORTED_FIELDS): Delete.
* name-lookup.h (set_class_bindings): Add EXTRA arg.
* name-lookup.c (fields_linear_search): New, broken out of ...
(lookup_field_1): ... here.  Delete remainder of function.
(get_class_binding_direct): Reimplement without sorted_fields.
(get_class_binding): Rename TYPE arg to KLASS, for consistency.
(get_method_slot): Call set_class_binding when creating method_vec
on complete type.
(method_name_cmp): Order identically named slots.
(sorted_fields_type_new): Delete.
(field_vc_append_class_fields): Rename to ...
(method_vec_append_class_fields): ... here.  Adjust.
(field_vec_append_enum_values): Renme to ...
(method_vec_append_enum_values): ... here. Adjust.
(method_vec_dedup): New.
(set_class_bindings): Reimplement.
(insert_late_enum_def_bindings): Reimplement.

From-SVN: r252005

name-lookup.c (get_class_binding): Rename TYPE arg to KLASS for consistency.

* name-lookup.c (get_class_binding): Rename TYPE arg to KLASS for
consistency.
(restort_data): Move later.
(method_name_cmp, resort_method_name_cmp): Simplify.
(resort_type_method_vec): Reformat.

From-SVN: r252004

re PR target/82112 (internal compiler error: in fold_convert_loc, at fold-const.c:2262)

PR target/82112
* c-common.c (sync_resolve_size): Instead of c_dialect_cxx ()
assertion check that in the condition.
(get_atomic_generic_size): Likewise.  Before testing if parameter
has pointer type, if it has array type, call for C++
default_conversion to perform array-to-pointer conversion.

* c-c++-common/pr82112.c: New test.
* gcc.dg/pr82112.c: New test.

From-SVN: r252003

tree-vect-generic.c (expand_vector_operations_1): Do nothing for operations we cannot scalarize.

2017-09-12  Richard Biener  <rguenther@suse.de>

* tree-vect-generic.c (expand_vector_operations_1): Do nothing
for operations we cannot scalarize.

From-SVN: r252002

[multiple changes]

2017-09-12  Bob Duff  <duff@adacore.com>

* sem_warn.adb: Minor comment.

2017-09-12  Bob Duff  <duff@adacore.com>

* libgnat/a-cbdlli.adb, libgnat/a-cbhama.adb,
libgnat/a-cbmutr.adb, libgnat/a-cborma.adb: Rename New_Item to
be Default_Initialized_Item, and apply pragma Unmodified to it,
to suppress the warning.

2017-09-12  Eric Botcazou  <ebotcazou@adacore.com>

* exp_aggr.adb (Aggr_Assignment_OK_For_Backend): Add early return
for access types.

2017-09-12  Yannick Moy  <moy@adacore.com>

* gnat1drv.adb (Adjust_Global_Switches): Consider Refined_Global
together with Global when ignoring one in CodePeer mode.

2017-09-12  Javier Miranda  <miranda@adacore.com>

* sem_ch3.adb (Analyze_Declarations): In nested
package declarations that have a private part enable missing check
of the RM rule 13.1.1(11/3): usage names in aspect definitions are
resolved at the end of the immediately enclosing declaration list.

From-SVN: r252001

[multiple changes]

2017-09-12  Bob Duff  <duff@adacore.com>

* sem_ch6.adb (Analyze_Expression_Function): Initialize Def_Id to
Empty.

2017-09-12  Georges-Axel Jaloyan  <jaloyan@adacore.com>

* debug.adb: Reserving flag -gnatdF for safe pointer checking.
* gnat1drv.adb (gnat1drv): Adding the call to the analysis on
dF flag.
* sem_spark.adb, sem_spark.ads: Implementation of the analysis,
in preparation for the evolution of the SPARK language that
includes a pointer analysis for checking non-aliasing of access
types. The Check_Safe_Pointers function is the entry point, and
will traverse the AST and raise compile-time errors everytime
it detects non-begign aliasing.  Detailed comments are present
in the sem_spark.ads file.
* sem_util.adb, sem_util.ads (First_Global, Next_Global): New
functions to iterate over the list of globals of a subprogram.
* libgnat/system.ads: Add restriction No_Finalization.
* gcc-interface/Make-lang.in: Add new file sem_spark.adb and
dependency on g-dynhta.adb.

From-SVN: r252000

sem_ch6.adb (Analyze_Expression_Function): Call Check_Dynamically_Tagged_Expression.

2017-09-12  Bob Duff  <duff@adacore.com>

* sem_ch6.adb (Analyze_Expression_Function): Call
Check_Dynamically_Tagged_Expression.
* sem_util.adb (Check_Dynamically_Tagged_Expression): Remove
"and then Is_Tagged_Type (Typ)" because there is an earlier
"Assert (Is_Tagged_Type (Typ))".

From-SVN: r251999

tree-ssa-threadbackward.c (fsm_find_thread_path): Make GC vectors heap vectors.

* tree-ssa-threadbackward.c (fsm_find_thread_path): Make GC
vectors heap vectors.  Clean up comments.
Make visited_bbs a reference.
(profitable_jump_thread_path): Make GC
vectors heap vectors.  Clean up comments.
Misc cleanups.
(convert_and_register_jump_thread_path): Make GC vectors heap
vectors.
(check_subpath_and_update_thread_path): Same.  Clean up comments.
Make visited_bbs a reference.
(handle_phi): Abstract common code to to
register_jump_thread_path_if_profitable.
Rename VAR_BB to DEF_BB.
Update comments.
Make GC vectors heap vectors.
Make visited_bbs a reference.
(handle_assignment): Same.
(register_jump_thread_path_if_profitable): New.
(fsm_find_control_statement_thread_paths): Rename VAR_BB to
DEF_BB.
Make GC vectors heap vectors.  Clean up comments.
Make visited_bbs a reference.
(find_jump_threads_backwards): Make visited_bbs live in the stack.
* tree-ssa-threadupdate.c (delete_jump_thread_path): Fix typo in
comment.

From-SVN: r251998

* gcc-interface/Makefile.in (SPARC/Solaris): Remove obsolete stuff.

From-SVN: r251997

Daily bump.

From-SVN: r251996

PR libstdc++/70483 make std::string_view fully constexpr

PR libstdc++/70483
* include/bits/string_view.tcc (basic_string_view::find)
(basic_string_view::rfind, basic_string_view::find_first_of)
(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
(basic_string_view::find_last_not_of): Add constexpr specifier.
* include/std/string_view (basic_string_view::operator=)
(basic_string_view::rbegin, basic_string_view::rend)
(basic_string_view::crbegin, basic_string_view::crend)
(basic_string_view::remove_prefix, basic_string_view::remove_suffix)
(basic_string_view::swap, basic_string_view::compare)
(basic_string_view::find, basic_string_view::rfind)
(basic_string_view::find_first_of, basic_string_view::find_last_of)
(basic_string_view::find_first_not_of)
(basic_string_view::find_last_not_of, basic_string_view::_M_check)
(basic_string_view::_M_limit, operator==, operator!=, operator<)
(operator>, operator<=, operator>=): Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
char/1.cc: Repeat tests in constexpr context.
* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
wchar_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
char/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
wchar_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operators/char/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/range_access/char/1.cc: Test
cbegin, cend, rbegin, rend, crbegin and crend.
* testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
Remove trailing whitespace.
* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/
1.cc: Likewise.
* testsuite/21_strings/basic_string_view/modifiers/swap/char/1.cc:
New.
* testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t/1.cc:
New.
* testsuite/21_strings/basic_string_view/operations/compare/char/2.cc:
New.
* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/
2.cc: New.

From-SVN: r251988

xtensa: fix PR target/82181

2017-09-11  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
words of E_DImode object are reachable by xtensa_uimm8x4 access.

From-SVN: r251986

re PR libstdc++/71500 (regex::icase only works on first character in a range)

PR libstdc++/71500
* include/bits/regex_executor.tcc: Support icase in regex_tratis<...>
for back reference matches.
* testsuite/28_regex/regression.cc: Test case.

From-SVN: r251982

Adjust test to pass with old std::string

* testsuite/21_strings/basic_string/lwg2946.cc: Adjust for
compatibility with old COW std::string.

From-SVN: r251981

2017-09-11  Vidya Praveen  <vidyapraveen@arm.com>

Revert r251800 and r251799.

From-SVN: r251980

Add myself as ARM port maintainer

2017-09-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

* MAINTAINERS (Reviewers): Move myself from here...
(CPU Port Maintainers): ... to here.

From-SVN: r251979

[multiple changes]

2017-09-11  Arnaud Charlet  <charlet@adacore.com>

* doc/gnat_ugn/the_gnat_compilation_model.rst: Fix sphinx warning.
* doc/gnat_ugn/platform_specific_information.rst: Remove doc
for no longer supported platforms.
* doc/gnat_ugn/gnat_and_program_execution.rst: Added detailed
description of the semantics for dimensionality analysis.
* gnat_ugn.texi: Regenerated.

2017-09-11  Eric Botcazou  <ebotcazou@adacore.com>

* freeze.adb (Has_Incomplete_Compoent): Delete.
(Freeze_Profile):
Do not inhibit the freezing of the profile of an expression
function here.
(Freeze_Subprogram): Do not re-create extra formals.
* sem_ch6.adb (Analyze_Expression_Function): Always
pre-analyze the expression if the function is not a completion.
(Analyze_Subprogram_Body_Helper): For the body generated
from an expression function that is not a completion, do
not freeze the profile and temporary mask the types declared
outside the expression that are not yet frozen.
* sem_res.adb (Rewrite_Renamed_Operator): Also bail out if invoked
during the pre-analysis of an expression function.

From-SVN: r251978

Removed, no longer used.

From-SVN: r251977

Removed, no longer used.

From-SVN: r251976

gigi.h (enum standard_datatypes): Minor tweak.

* gcc-interface/gigi.h (enum standard_datatypes): Minor tweak.
(gigi): Likewise.

From-SVN: r251974

Restored, removed by mistake.

From-SVN: r251973

Renamed s-thread__ae653.adb

From-SVN: r251972

Removed, no longer used.

From-SVN: r251971

New file.

From-SVN: r251970

Removed, no longer used.

From-SVN: r251969

libgnat: Rename ?-[a-z]*-* into ?-[a-z]*__*

2017-09-11  Jerome Lambourg  <lambourg@adacore.com>

        * libgnat: Rename ?-[a-z]*-* into ?-[a-z]*__*
        * gcc-interface/Makefile.in, gcc-interface/Make-lang.in: Take this
renaming into account.

From-SVN: r251968

lib-xref-spark_specific.adb: Minor rewrite.

2017-09-11  Yannick Moy  <moy@adacore.com>

* lib-xref-spark_specific.adb: Minor rewrite.

From-SVN: r251967

Makefile.in: Take this renaming into account.

2017-09-11  Jerome Lambourg  <lambourg@adacore.com>

* gcc-interface/Makefile.in: Take this renaming into account.

From-SVN: r251966

libgnarl: Rename ?-[a-z]*-* into ?-[a-z]*__*

2017-09-11  Jerome Lambourg  <lambourg@adacore.com>

        * libgnarl: Rename ?-[a-z]*-* into ?-[a-z]*__*
        * gcc-interface/Makefile.in: Take this renaming into account.

From-SVN: r251965

Make HSA resilient to side-effects of split_edge

2017-09-11  Martin Jambor  <mjambor@suse.cz>

PR hsa/82119
* hsa-gen.c (gen_hsa_phi_from_gimple_phi): Process ADDR_EXPRs in
arguments in advance.
* hsa-regalloc.c (naive_process_phi): New parameter predecessors,
use it to find predecessor edges.
(naive_outof_ssa): Collect vector of predecessors.

From-SVN: r251964

Removed.

From-SVN: r251963

* s-auxdec-empty.ads, s-auxdec-empty.adb: Removed, no longer used.

From-SVN: r251962

Update header.

From-SVN: r251961

sem_util.adb (Check_Result_And_Post_State): Do not issue a warning about missing reference to an outcome if...

2017-09-11  Yannick Moy  <moy@adacore.com>

* sem_util.adb (Check_Result_And_Post_State):
Do not issue a warning about missing reference to an outcome if
the subprogram is ghost and has no outputs.
* lib-xref-spark_specific.adb, sem_aggr.adb, sem_aux.ads: Minor
reformatting.

From-SVN: r251960

gnat1drv.adb (Adjust_Global_Switches): Set Check_Validity_Of_Parameters to False in GNATprove mode.

2017-09-11  Yannick Moy  <moy@adacore.com>

* gnat1drv.adb (Adjust_Global_Switches): Set
Check_Validity_Of_Parameters to False in GNATprove mode.
* opt.ads (Check_Validity_Of_Parameters): Document switch to
set option.

From-SVN: r251959

New files, to ease sync between AdaCore and FSF.

From-SVN: r251958

New files, to ease sync between AdaCore and FSF.

From-SVN: r251957

Daily bump.

From-SVN: r251956

re PR ada/79441 (gnat.dg/pack9.adb fails)

PR ada/79441
* gnat.dg/pack9.adb: Robustify.

From-SVN: r251951

re PR fortran/34640 (ICE when assigning item of a derived-component to a pointer)

2017-09-10  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/34640
PR fortran/40737
PR fortran/55763
PR fortran/57019
PR fortran/57116

* expr.c (is_subref_array): Add class pointer array dummies
to the list of expressions that return true.
* trans-array.c: Add SPAN_FIELD and update indices for
subsequent fields.
(gfc_conv_descriptor_span, gfc_conv_descriptor_span_get,
gfc_conv_descriptor_span_set, is_pointer_array,
get_array_span): New functions.
(gfc_get_descriptor_offsets_for_info): New function to preserve
API for access to descriptor fields for trans-types.c.
(gfc_conv_scalarized_array_ref): If the expression is a subref
array, make sure that info->descriptor is a descriptor type.
Otherwise, if info->descriptor is a pointer array, set 'decl'
and fix it if it is a component reference.
(build_array_ref): Simplify handling of class array refs by
passing the vptr to gfc_build_array_ref rather than generating
the pointer arithmetic in this function.
(gfc_conv_array_ref): As in gfc_conv_scalarized_array_ref, set
'decl'.
(gfc_array_allocate): Set the span field if this is a pointer
array. Use the expr3 element size if it is available, so that
the dynamic type element size is used.
(gfc_conv_expr_descriptor): Set the span field for pointer
assignments.
* trans-array.h: Prototypes for gfc_conv_descriptor_span_get
gfc_conv_descriptor_span_set and
gfc_get_descriptor_offsets_for_info added.
trans-decl.c (gfc_get_symbol_decl): If a non-class pointer
array, mark the declaration as a GFC_DECL_PTR_ARRAY_P. Remove
the setting of GFC_DECL_SPAN.
(gfc_trans_deferred_vars): Set the span field to zero in thge
originating scope.
* trans-expr.c (gfc_conv_procedure_call): Do not use copy-in/
copy-out to pass subref expressions to a pointer dummy.
(gfc_trans_pointer_assignment): Remove code for setting of
GFC_DECL_SPAN. Set the 'span' field for non-class pointers to
class function results. Likewise for rank remap. In the case
that the target is not a whole array, use the target array ref
for remap and, since the 'start' indices are missing, set the
lbounds to one, as required by the standard.
* trans-intrinsic.c (conv_expr_ref_to_caf_ref): Pick up the
'token' offset from the field decl in the descriptor.
(conv_isocbinding_subroutine): Set the 'span' field.
* trans-io.c (gfc_trans_transfer): Always scalarize pointer
array io.
* trans-stmt.c (trans_associate_var): Set the 'span' field.
* trans-types.c (gfc_get_array_descriptor_base): Add the 'span'
field to the array descriptor.
(gfc_get_derived_type): Pointer array components are marked as
GFC_DECL_PTR_ARRAY_P.
(gfc_get_array_descr_info): Replaced API breaking code for
descriptor offset calling gfc_get_descriptor_offsets_for_info.
* trans.c (get_array_span): New function.
(gfc_build_array_ref): Simplify by calling get_array_span and
obtain 'span' if 'decl' or 'vptr' present.
* trans.h : Rename DECL_LANG_FLAG_6, GFC_DECL_SUBREF_ARRAY_P,
as GFC_DECL_PTR_ARRAY_P.

2017-09-10  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/34640
* gfortran.dg/associate_24.f90: New test.
* gfortran.dg/assumed_type_2.f90: Adjust some of the tree dump
checks.
* gfortran.dg/no_arg_check_2.f90: Likewise.
* gfortran.dg/pointer_array_1.f90: New test.
* gfortran.dg/pointer_array_2.f90: New test.
* gfortran.dg/pointer_array_7.f90: New test.
* gfortran.dg/pointer_array_8.f90: New test.
* gfortran.dg/pointer_array_component_1.f90: New test.
* gfortran.dg/pointer_array_component_2.f90: New test.
* gfortran.dg/goacc/kernels-alias-4.f95: Bump up both tree scan
counts by 1.

PR fortran/40737
* gfortran.dg/pointer_array_3.f90: New test.

PR fortran/57116
* gfortran.dg/pointer_array_4.f90: New test.

PR fortran/55763
* gfortran.dg/pointer_array_5.f90: New test.

PR fortran/57019
* gfortran.dg/pointer_array_6.f90: New test.

2017-09-10  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/34640
* libgfortran/libgfortran.h: Add span field to descriptor.
* libgfortran/libtool-version : Bump up version number to 5:0:0.

From-SVN: r251949

A partially initialized variable isn't constant.

* constexpr.c (reduced_constant_expression_p): If
CONSTRUCTOR_NO_IMPLICIT_ZERO, check that all fields are initialized.

From-SVN: r251948

Daily bump.

From-SVN: r251945

Revert: * dwarf2out.c (gen_formal_parameter_die): Remove obsolete hunk.

Check ultimate_origin before setting reusing_die.

From-SVN: r251941

[MAINTAINERS] Add myself as AArch64 CPU Port maintainer

From-SVN: r251940

PR c++/81852 define feature-test macro for -fthreadsafe-statics

gcc/c-family:

PR c++/81852
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_threadsafe_static_init.

gcc/testsuite:

PR c++/81852
* g++.dg/cpp1y/feat-cxx11.C: Check __cpp_threadsafe_static_init.
* g++.dg/cpp1y/feat-cxx14.C: Likewise.
* g++.dg/cpp1y/feat-cxx98.C: Likewise.
* g++.dg/cpp1y/feat-neg.C: Likewise.
* g++.dg/cpp1z/feat-cxx1z.C: Likewise.

From-SVN: r251939

dwarf2out.c (gen_formal_parameter_die): Remove obsolete hunk.

* dwarf2out.c (gen_formal_parameter_die): Remove obsolete hunk.

Check ultimate_origin before setting reusing_die.

Co-Authored-By: Jason Merrill <jason@redhat.com>
From-SVN: r251938

decl.c (gnat_to_gnu_entity): Don't generate debug info for inner record types if -fgnat-encodings=minimal.

* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Don't
generate debug info for inner record types if -fgnat-encodings=minimal.
(gnat_to_gnu_entity) <E_Record_Subtype>: Use the ultimate base record
type as the debug type.

From-SVN: r251937

decl.c (components_to_record): Do not reorder in non- packed record types if...

* gcc-interface/decl.c (components_to_record): Do not reorder in non-
packed record types if pragma Optimize_Alignment (Space) is enabled.

From-SVN: r251936

trans.c (Subprogram_Body_to_gnu): Disregard inlining limits for expression functions.

* gcc-interface/trans.c (Subprogram_Body_to_gnu): Disregard inlining
limits for expression functions.
(gnat_to_gnu) <N_Object_Declaration>: Fix formatting.

From-SVN: r251935

decl.c (gnat_to_gnu_entity): Copy the layout of the record from the parent type only if...

* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Copy the
layout of the record from the parent type only if both are or are not
unchecked unions.
(is_stored_discriminant): Return false for an unchecked union.

From-SVN: r251934

utils2.c (build_allocator): In type_annotate_only mode return NULL_EXPR.

* gcc-interface/utils2.c (build_allocator): In type_annotate_only mode
return NULL_EXPR.

From-SVN: r251933

decl.c (promote_object_alignment): New function taken from...

* gcc-interface/decl.c (promote_object_alignment): New function taken
from...
(gnat_to_gnu_entity) <E_Variable>: ...here.  Invoke it.
(gnat_to_gnu_field): If the field is Atomic or VFA, invoke it and
create a padding type on success before doing the atomic check.

From-SVN: r251931

decl.c (gnat_to_gnu_entity): Apply the promotion to static memory earlier in the processing.

* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Apply the
promotion to static memory earlier in the processing.

From-SVN: r251929

decl.c (gnat_to_gnu_entity): Only set the TYPE_ALIGN_OK and TYPE_BY_REFERENCE_P flags on types after various...

* gcc-interface/decl.c (gnat_to_gnu_entity): Only set the TYPE_ALIGN_OK
and TYPE_BY_REFERENCE_P flags on types after various promotions.
* gcc-interface/trans.c (node_has_volatile_full_access) <N_Identifier>:
Consider all kinds of entities.

From-SVN: r251927

decl.c: Add decl_type_param_list...

2017-09-09  Paul Thomas  <pault@gcc.gnu.org>

* decl.c : Add decl_type_param_list, type_param_spec_list as
static variables to hold PDT spec lists.
(build_sym): Copy 'type_param_spec_list' to symbol spec_list.
(build_struct): Copy the 'saved_kind_expr' to the component
'kind_expr'. Check that KIND or LEN components appear in the
decl_type_param_list. These should appear as symbols in the
f2k_derived namespace. If the component is itself a PDT type,
copy the decl_type_param_list to the component param_list.
(gfc_match_kind_spec): If the KIND expression is parameterized
set KIND to zero and store the expression in 'saved_kind_expr'.
(insert_parameter_exprs): New function.
(gfc_insert_kind_parameter_exprs): New function.
(gfc_insert_parameter_exprs): New function.
(gfc_get_pdt_instance): New function.
(gfc_match_decl_type_spec): Match the decl_type_spec_list if it
is present. If it is, call 'gfc_get_pdt_instance' to obtain the
specific instance of the PDT.
(match_attr_spec): Match KIND and LEN attributes. Check for the
standard and for type/kind of the parameter. They are also not
allowed outside a derived type definition.
(gfc_match_data_decl): Null the decl_type_param_list and the
type_param_spec_list on entry and free them on exit.
(gfc_match_formal_arglist): If 'typeparam' is true, add the
formal symbol to the f2k_derived namespace.
(gfc_match_derived_decl): Register the decl_type_param_list
if this is a PDT. If this is a type extension, gather up all
the type parameters and put them in the right order.
*dump-parse-tree.c (show_attr): Signal PDT templates and the
parameter attributes.
(show_components): Output parameter atrributes and component
parameter list.
(show_symbol): Show variable parameter lists.
* expr.c (expr.c): Copy the expression parameter list.
(gfc_is_constant_expr): Pass on symbols representing PDT
parameters.
(gfc_check_init_expr): Break on PDT KIND parameters and
PDT parameter expressions.
(gfc_check_assign): Assigning to KIND or LEN components is an
error.
(derived_parameter_expr): New function.
(gfc_derived_parameter_expr): New function.
(gfc_spec_list_type): New function.
* gfortran.h : Add enum gfc_param_spec_type. Add the PDT attrs
to the structure symbol_attr. Add the 'kind_expr' and
'param_list' field to the gfc_component structure. Comment on
the reuse of the gfc_actual_arglist structure as storage for
type parameter spec lists. Add the new field 'spec_type' to
this structure. Add 'param_list' fields to gfc_symbol and
gfc_expr. Add prototypes for gfc_insert_kind_parameter_exprs,
gfc_insert_parameter_exprs, gfc_add_kind, gfc_add_len,
gfc_derived_parameter_expr and gfc_spec_list_type.
* interface.c (gfc_compare_derived_types): Treat PDTs in the
same way as sequence types.
* match.c : Add variable 'type_param_spec_list'.
(gfc_op2string, gfc_match_member_sep, gfc_match_label): Remove
trailing whitespace.
(match_derived_type_spec): Match PDTs and find specific
instance.
(gfc_match_type_spec): Remove more trailing whitespace.
(gfc_match_allocate): Assumed or deferred parameters cannot
appear here. Copy the type parameter spec list to the expr for
the allocatable entity. Free 'type_param_spec_list'.
(gfc_match_common, gfc_match_namelist, gfc_match_module): Still
more trailing whitespace to remove.
(gfc_match_type_is): Allow PDT typespecs.
* match.h : Modify prototypes for gfc_match_formal_arglist and
gfc_match_actual_arglist.
* module.c (ab_attribute, mstring attr_bits): PDT attributes
added.
(mio_symbol_attribute): PDT attributes handled.
(mio_component): Deal with 'kind_expr' field.
(mio_full_f2k_derived): For PDT templates, transfer the formal
namespace symroot to the f2k_derived namespace.
*primary.c (match_keyword_arg, gfc_match_actual_arglist): Add
modifications to handle PDT spec lists. These are flagged in
both cases by new boolean arguments, whose prototype defaults
are false.
(gfc_match_structure_constructor, match_variable): Remove yet
more trailing whitespace.
* resolve.c (get_pdt_spec_expr, get_pdt_constructor): New
functions.
(resolve_structure_cons): If the constructor is a PDT template,
call get_pdt_constructor to build it using the parameter lists
and then get the specific instance of the PDT.
(resolve_component): PDT strings need a hidden string length
component like deferred characters.
(resolve_symbol): Dummy PDTs cannot have deferred parameters.
* symbol.c (gfc_add_kind, gfc_add_len): New functions.
(free_components): Free 'kind_expr' and 'param_list' fields.
(gfc_free_symbol): Free the 'param_list' field.
(gfc_find_sym_tree): If the current state is a PDT template,
look for the symtree in the f2k_derived namspaces.
trans-array.c (structure_alloc_comps): Allocate and deallocate
PDTs. Check dummy arguments for compliance of LEN parameters.
Add the new functions to the preceeding enum.
(gfc_allocate_pdt_comp, gfc_deallocate_pdt_comp and
gfc_check_pdt_dummy): New functions calling above.
* trans-array.h : Add prototypes for these functions.
trans-decl.c (gfc_get_symbol_decl): Call gfc_defer_symbol_init
as appropriate for PDT symbols.
(gfc_trans_deferred_vars): Allocate/deallocate PDT entities as
they come into and out of scope. Exclude pdt_types from being
'gcc_unreachable'.
(gfc_trans_subcomponent_assign): PDT array components must be
handles as if they are allocatable.
* trans-stmt.c (gfc_trans_allocate): Handle initialization of
PDT entities.
(gfc_trans_deallocate): Likewise.
* trans-types.c (gfc_get_derived_type): PDT templates must not
arrive here. PDT string components are handles as if deferred.
Similarly, PDT arrays are treated as if allocatable. PDT
strings are pointer types.
* trans.c (gfc_deferred_strlen): Handle PDT strings in the same
way as deferred characters.

2017-09-09  Paul Thomas  <pault@gcc.gnu.org>

* gfortran.dg/pdt_1.f03 : New test.
* gfortran.dg/pdt_2.f03 : New test.
* gfortran.dg/pdt_3.f03 : New test.
* gfortran.dg/pdt_4.f03 : New test.
* gfortran.dg/pdt_5.f03 : New test.

From-SVN: r251925

utils.c (convert): When converting to a padding type...

* gcc-interface/utils.c (convert): When converting to a padding type,
reuse an existing CONSTRUCTOR if it has got the right size.

From-SVN: r251924

re PR bootstrap/81926 (go/parse.o differs between stage2 and stage3)

PR bootstrap/81926
* cp-objcp-common.c (struct debug_type_hasher): New class.
(debug_type_hash): New variable.
(cp_get_debug_type): Associate the OFFSET_TYPEs with the types.

From-SVN: r251922

allocator.xml: Adjust link for Hoard.

* doc/xml/manual/allocator.xml: Adjust link for Hoard.
* doc/html/manual/memory.html: Regenerate.

From-SVN: r251919

compiler: guard against implicit double pointer indirection

    The code that lowers field references can sometimes introduce a double
    pointer indirection in cases where it is not/safe appropriate. For
    example, in

            var p **struct { f int }
            p.f = 0

    the assignment LHS was being incorrectly lowered to (*(*p)).f.
    Detect this situation and issue an error.

    Fixes golang/go#21770

    Reviewed-on: https://go-review.googlesource.com/62330

From-SVN: r251918

Daily bump.

From-SVN: r251917

PR c++/70029 - ICE with ref-qualifier and -flto

PR c++/70029 - ICE with ref-qualifier and -flto
gcc/
* langhooks.h (struct lang_hooks_for_types): Add
copy_lang_qualifiers.
* attribs.c (build_type_attribute_qual_variant): Use it.
* langhooks-def.h (LANG_HOOKS_COPY_LANG_QUALIFIERS): Default to
NULL.
(LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
* tree.c (verify_type): Re-enable TYPE_CANONICAL main variant check.
gcc/cp/
* tree.c (cxx_copy_lang_qualifiers): New.
* cp-tree.h: Declare it.
* cp-objcp-common.h: Define LANG_HOOKS_COPY_LANG_QUALIFIERS.

From-SVN: r251911

Fix date

From-SVN: r251906

re PR target/81988 (invalid std instruction with odd register)

PR target/81988
* config/sparc/sparc.md (mulsi3): Rename into *mulsi3_sp32.
(*mulsi3_sp64): New instruction.
(mulsi3): New expander.

From-SVN: r251904

Make-lang.in, [...]: Find runtime source in libgnat/

2017-09-08  Nicolas Roche  <roche@adacore.com>

* gcc-interface/Make-lang.in, gcc-interface/Makefile.in: Find runtime
source in libgnat/
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a-timoio.ads, a-decima.adb, s-flocon.ads, s-wchcon.ads, a-llfzti.ads,
i-fortra.ads, s-pack50.ads, s-pack15.ads, a-ngcefu.ads, a-cfhase.adb,
s-wchjis.ads, g-soliop.ads, a-decima.ads, a-chlat9.ads, s-pack24.adb,
a-nlelfu.ads, a-cfhase.ads, g-locfil.adb, s-atocou-builtin.adb,
s-memcop.ads, a-szunau.adb, s-pack24.ads, s-imgllb.adb, s-auxdec.adb,
g-locfil.ads, s-pack33.adb, a-szunau.ads, s-parame-vxworks.adb,
s-imgllb.ads, a-ciorma.adb, s-auxdec.ads, a-cobove.adb, s-dsaser.ads,
a-elchha.adb, s-pack33.ads, a-cofuve.adb, s-parame-vxworks.ads,
a-ciorma.ads, system-darwin-x86.ads, s-multip.adb, a-stwiun-shared.adb,
a-wichun.adb, a-cobove.ads, s-imgbiu.adb, s-tsmona-mingw.adb,
a-coormu.adb, a-siocst.adb, s-win32.ads, a-elchha.ads, s-pack42.adb,
s-pack07.adb, a-cofuve.ads, system-hpux.ads, a-teioed.adb,
a-convec.adb, g-speche.adb, s-multip.ads, a-stwiun-shared.ads,
a-wichun.ads, s-imgbiu.ads, a-numeri.ads, a-siocst.ads, a-coormu.ads,
a-lliwti.ads, s-pack42.ads, s-pack07.ads, a-teioed.ads, a-convec.ads,
g-speche.ads, g-socthi.adb, a-nucoty.ads, a-szmzco.ads, s-pack51.adb,
s-osprim-mingw.adb, s-casi64.adb, g-strspl.ads, g-socthi.ads,
g-socket-dummy.adb, s-pack51.ads, s-dimmks.ads, s-casi64.ads,
a-wtenau.adb, s-stchop-vxworks.adb, s-pack60.adb,
system-solaris-sparc.ads, s-pack25.adb, g-socket-dummy.ads,
a-exstat.adb, a-cofuma.adb, s-tsmona-linux.adb, a-wtenau.ads,
s-pack60.ads, s-pack25.ads, i-cstrea.adb, a-cofuma.ads, g-exptty.adb,
a-chzla1.ads, s-pack34.adb, i-cstrea.ads, s-excdeb.adb, a-iteint.ads,
g-exptty.ads, i-pacdec.adb, s-pack34.ads, s-rident.ads, s-sopco3.adb,
i-vxwork.ads, s-excdeb.ads, system-linux-ppc.ads, a-swuwti-shared.adb,
s-widlli.adb, s-pack43.adb, i-pacdec.ads, a-cwila9.ads, s-sopco3.ads,
a-fwteio.ads, s-widlli.ads, s-pack43.ads, a-suhcin.adb, a-wtdeau.adb,
g-allein.ads, a-suezst.adb, a-dirval-mingw.adb, g-zspche.adb,
s-bignum.adb, a-ztedit.adb, g-regist.adb, a-nllefu.ads, a-ztcoio.adb,
s-pack52.adb, a-llctio.ads, a-nucoar.ads, s-pack17.adb, a-suhcin.ads,
a-wtdeau.ads, a-suezst.ads, a-dirval.adb, g-zspche.ads, g-regist.ads,
a-ztedit.ads, s-bignum.ads, a-wtcstr.adb, system.ads, s-pack52.ads,
a-ztcoio.ads, s-pack17.ads, s-imgboo.adb, a-rbtgso.adb, a-dirval.ads,
a-cohase.adb, s-pack61.adb, a-wtcstr.ads, s-pack26.adb, s-osprim.ads,
a-tigeau.adb, s-imgboo.ads, a-nuelfu.ads, a-swfwha.ads, s-commun.adb,
g-socthi-vxworks.adb, a-rbtgso.ads, a-cohase.ads, g-zstspl.ads,
s-pack61.ads, s-pack26.ads, a-intnam-dragonfly.ads, s-imglld.adb,
a-tigeau.ads, s-commun.ads, g-socthi-vxworks.ads, a-cborma.adb,
a-stwifi.adb, g-moreex.adb, s-pack35.adb, s-imglld.ads, s-valdec.adb,
a-tifiio.adb, a-cborma.ads, g-moreex.ads, a-stwifi.ads, s-pack35.ads,
s-sopco4.adb, g-sha224.ads, g-socket.adb, a-intnam-rtems.ads,
s-finmas.adb, s-valdec.ads, s-addima.adb, a-finali.adb, a-tifiio.ads,
s-rpc.adb, a-ztflio.adb, s-pack44.adb, s-pack09.adb, a-sblcin.adb,
s-sopco4.ads, a-textio.adb, g-socket.ads, g-sptabo.ads, s-finmas.ads,
g-shsh32.adb, s-addima.ads, a-finali.ads, s-mmauni-long.ads, s-rpc.ads,
a-ztflio.ads, system-djgpp.ads, s-stache.adb, s-pack44.ads,
s-pack09.ads, a-sblcin.ads, a-textio.ads, a-cidlli.adb, g-shsh32.ads,
a-chtgbk.adb, a-tiocst.adb, s-pack53.adb, s-pack18.adb, s-stache.ads,
a-zchhan.adb, s-fatlfl.ads, a-ztinio.adb, s-strops.adb, a-siteio.ads,
a-cidlli.ads, a-chtgbk.ads, g-ssvety.ads, a-tiocst.ads, s-pack53.ads,
s-parame-hpux.ads, s-pack18.ads, a-zchhan.ads, s-strops.ads,
a-ztinio.ads, a-wichha.adb, a-stwima.adb, a-nlrear.ads, a-liteio.ads,
s-pack62.adb, s-pack27.adb, s-fore.adb, s-vercon.adb, a-wichha.ads,
a-stwima.ads, s-pack62.ads, system-linux-sparc.ads, s-pack27.ads,
g-dynhta.adb, s-fore.ads, s-vercon.ads, a-cofuba.adb, a-cimutr.adb,
i-cpoint.adb, s-imgenu.adb, a-stwibo.adb, s-pack36.adb, i-cstrin.adb,
s-imgllu.adb, a-suteio-shared.adb, g-excact.adb, s-stoele.adb,
s-addope.adb, g-dynhta.ads, a-cofuba.ads, a-ztmoio.adb, a-llfwti.ads,
a-cimutr.ads, i-cpoint.ads, s-imgenu.ads, a-stwibo.ads, a-wttest.adb,
s-pack36.ads, a-tgdico.ads, s-sopco5.adb, s-scaval.adb, i-cstrin.ads,
s-imgllu.ads, g-excact.ads, s-stoele.ads, g-deutst.ads, s-addope.ads,
s-imgwch.adb, g-sha384.ads, a-ztmoio.ads, s-pack45.adb, a-wttest.ads,
s-sopco5.ads, s-excmac-gcc.adb, s-scaval.ads, a-storio.adb,
a-coinho.adb, a-btgbso.adb, s-imgwch.ads, s-carun8.adb, memtrack.adb,
s-pack45.ads, a-sfhcin.ads, s-excmac-gcc.ads, a-storio.ads,
a-coinho.ads, a-btgbso.ads, s-stratt.adb, s-carun8.ads, a-shcain.adb,
s-pack54.adb, s-pack19.adb, a-colire.adb, a-tigeli.adb, s-caun64.adb,
s-stratt.ads, s-fatgen.adb, a-shcain.ads, a-stzunb-shared.adb,
s-pack54.ads, s-pack19.ads, a-colire.ads, a-calcon.adb, s-caun64.ads,
s-fatgen.ads, s-pack63.adb, g-arrspl.adb, a-stzunb-shared.ads,
s-pack28.adb, a-nllrar.ads, a-zzboio.adb, a-zzunio.ads, a-stunau.adb,
a-calcon.ads, g-cgideb.adb, s-objrea.adb, s-mastop.adb, a-tienau.adb,
g-altcon.adb, g-arrspl.ads, s-pack63.ads, s-restri.adb, s-pack28.ads,
a-zzboio.ads, a-stunau.ads, g-cgideb.ads, g-htable.adb, g-sothco.adb,
s-objrea.ads, g-soliop-solaris.ads, s-mastop.ads, a-tienau.ads,
system-linux-m68k.ads, g-altcon.ads, s-dmotpr.ads, s-memory-mingw.adb,
g-cgicoo.adb, s-pack37.adb, s-restri.ads, s-fatllf.ads, s-expmod.adb,
a-swuwha.adb, a-exextr.adb, a-cfhama.adb, s-gloloc-mingw.adb,
a-tiboio.adb, g-forstr.adb, g-sothco.ads, a-stzbou.adb, a-nllcty.ads,
a-suecin.adb, g-htable.ads, s-exctab.adb, a-tiunio.ads, g-cgicoo.ads,
s-osprim-posix.adb, s-pack37.ads, a-ciormu.adb, s-atocou-x86.adb,
a-swuwha.ads, s-expmod.ads, a-cfhama.ads, s-ficobl.ads, a-ngcoty.adb,
g-forstr.ads, a-tiboio.ads, a-calfor.adb, a-stzbou.ads, a-suecin.ads,
a-conhel.adb, a-crbltr.ads, s-exctab.ads, a-dhfina.ads, s-imgcha.adb,
s-pack46.adb, a-ciormu.ads, system-linux-sh4.ads, a-chahan.adb,
a-ngcoty.ads, a-stzunb.adb, a-szfzha.ads, a-calfor.ads, a-cbdlli.adb,
a-conhel.ads, s-imgcha.ads, s-pack46.ads, a-assert.adb, a-chahan.ads,
a-stzunb.ads, a-crdlli.adb, s-pack55.adb, a-cbdlli.ads, a-tideau.adb,
a-assert.ads, ioexcept.ads, s-boarop.ads, g-hesora.adb, a-crdlli.ads,
s-pack55.ads, a-tideau.ads, g-bubsor.adb, a-wtenio.adb, a-cbsyqu.adb,
g-hesora.ads, s-pack29.adb, a-nurear.ads, g-catiio.adb, s-stposu.adb,
g-bubsor.ads, a-wtenio.ads, a-cbsyqu.ads, a-suewst.adb,
system-vxworks-x86.ads, s-pack29.ads, a-cbmutr.adb, a-cbprqu.adb,
s-imenne.adb, g-sothco-dummy.adb, g-casuti.adb, g-catiio.ads,
s-stposu.ads, a-stzsea.adb, s-pack38.adb, a-suewst.ads, s-imgllw.adb,
a-cbprqu.ads, a-cbmutr.ads, s-imenne.ads, g-sothco-dummy.ads,
g-casuti.ads, s-htable.adb, s-fatsfl.ads, g-trasym.adb, unchconv.ads,
a-stzsea.ads, s-arit64.adb, s-pack38.ads, a-nllcar.ads, s-valrea.adb,
s-imgllw.ads, s-htable.ads, a-sequio.adb, g-trasym.ads, a-ngcoar.adb,
s-exnllf.adb, s-pack47.adb, s-arit64.ads, g-sercom-mingw.adb,
s-valrea.ads, g-socthi-mingw.adb, g-bytswa.adb, g-sehash.adb,
unchdeal.ads, a-sequio.ads, a-ngcoar.ads, s-exnllf.ads, a-wtdeio.adb,
s-pack47.ads, g-socthi-mingw.ads, a-excpol-abort.adb, a-ztgeau.adb,
g-bytswa.ads, g-sehash.ads, s-pack56.adb, a-wtdeio.ads, a-ngelfu.adb,
a-ztgeau.ads, a-cforse.adb, s-filatt.ads, a-stzfix.adb, a-cihase.adb,
s-pack56.ads, a-sfztio.ads, a-ngelfu.ads, s-trasym-dwarf.adb,
a-cforse.ads, a-ztfiio.adb, g-timsta.adb, a-stzfix.ads, a-cihase.ads,
a-ztfiio.ads, system-darwin-arm.ads: Move non-tasking runtime sources
to libgnat subdirectory.

From-SVN: r251902

Minor doc edit.

From-SVN: r251901

sem_aux.adb, [...] (Get_Called_Entity): New function to return the entity associated with the call.

2017-09-08  Yannick Moy  <moy@adacore.com>

* sem_aux.adb, sem_aux.ads (Get_Called_Entity): New function to
return the entity associated with the call.
* sem_util.adb, sem_util.ads (Check_Function_Writable_Actuals):
Replace the internal Get_Function_Id with the new
Sem_Aux.Get_Called_Entity.
(Iterate_Call_Parameters): New
procedure to iterate on formals and actuals at the same time.
* sem_ch12.adb (Analyze_Subprogram_Instantiation):
Set SPARK_Mode from spec when set, for analysis
of instance. Restore after analysis of instance.
(Instantiate_Subprogram_Body): Set SPARK_Mode from body when
set, for analysis of body instance. Restored automatically at
the end of the subprogram.
* gnat1drv.adb (Adjust_Global_Switches): Set
Check_Validity_Of_Parameters to False in GNATprove mode.
* opt.ads (Check_Validity_Of_Parameters): Document switch to
set option.

From-SVN: r251900

alpha.c (alpha_print_operand): Remove.

* config/alpha/alpha.c (alpha_print_operand) <case 'S'>: Remove.

From-SVN: r251899

[multiple changes]

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* sem_util.adb (NCT_Tables_In_Use): Move to library level from...
(New_Copy_Tree): ...there.  Reset the hash tables only if they
were used in the previous invocation.
* s-htable.adb: Fix typo.

2017-09-08  Bob Duff  <duff@adacore.com>

* a-ssicst.adb (Open): Set File.Last_Op to the appropriate value.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* sem_aggr.adb: minor style fix.

2017-09-08  Bob Duff  <duff@adacore.com>

* sprint.adb (Write_Corresponding_Source): Ignore if there is
no current source file.
(Write_Name_With_Col_Check, Write_Name_With_Col_Check_Sloc):
Print something helpful in case N is invalid.
* sprint.ads: Minor comment fix.

From-SVN: r251897

exp_aggr.adb: (Aggr_Assignment_OK_For_Backend): Add early return for access types.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* exp_aggr.adb: (Aggr_Assignment_OK_For_Backend): Add early return for
access types.

From-SVN: r251896

[multiple changes]

2017-09-08  Bob Duff  <duff@adacore.com>

* par-prag.adb, sem_prag.adb, snames.ads-tmpl: Implement pragma
Ada_2020, along the same lines as the other Ada version pragmas.

2017-09-08  Gary Dismukes  <dismukes@adacore.com>

* sem_ch12.adb: Minor typo fixes and reformatting.

2017-09-08  Yannick Moy  <moy@adacore.com>

* sem_aggr.adb (Resolve_Record_Aggregate):
Rewrite bounds of aggregate subexpressions which may depend on
discriminants of the enclosing aggregate.

2017-09-08  Yannick Moy  <moy@adacore.com>

* sem_ch5.adb: Prevent assertion failure on illegal code.

2017-09-08  Yannick Moy  <moy@adacore.com>

* lib-xref-spark_specific.adb (Add_SPARK_Xrefs.Is_SPARK_Scope): Avoid
calling Renamed_Entity on an entity which cannot be a renaming.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* exp_aggr.adb: Add with & use clause for Urealp.
(Aggr_Assignment_OK_For_Backend): Accept (almost all)
elementary types instead of just discrete types.
* sem_eval.adb (Expr_Value): Deal with N_Null for access types.
* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>:
Be prepared for the FP zero value in the memset case.  Add small
guard.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* s-htable.adb (Static_HTable.Reset): Use aggregate instead
of loop.

From-SVN: r251894

[multiple changes]

2017-09-08  Hristian Kirtchev  <kirtchev@adacore.com>

* exp_aggr.adb (Expand_Array_Aggregate): Use New_Copy_Tree instead
of New_Copy because the latter leaves the syntactic structure of
the tree inconsistent (a child is accessible through two parents)
and prevents proper replication of itypes by subsequent calls
to New_Copy_Tree.
* exp_ch4.adb (Expand_Concatenate): Use New_Copy_Tree instead of
New_Copy because the latter leaves the syntactic structure of the
tree inconsistent (a child is accessible through two parents)
and prevents proper replication of itypes by subsequent calls
to New_Copy_Tree.
* sem_util.adb (In_Subtree): New routine.
(New_Copy_Tree): Reimplemented.
* sem_util.ads (In_Subtree): New routine.
(New_Copy_Tree): Reimplemented.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

* sem_ch13.adb (Resolve_Aspect_Expressions): The expression
for aspect Default_Value is a static scalar value, but it does
not freeze the type. Yhis allows for subsequent representation
clauses for the type.

2017-09-08  Javier Miranda  <miranda@adacore.com>

* sem_ch8.adb (Find_Direct_Name.Undefined): Do
not add entries into the undefined reference table when we are
compiling with errors ignored.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

* sem_ch12.adb (Check_Formal_Packages): Do not apply conformance
check if the instance is within an enclosing instance body. The
formal package was legal in the enclosing generic, and is
legal in the enclosing instantiation.  This optimisation may be
applicable elsewhere, and it also removes spurious errors that
may arise with on-the-fly processing  of instantiations that
contain Inline_Always subprograms.

2017-09-08  Vincent Celier  <celier@adacore.com>

* gnatcmd.adb: Disregard empty argument of GNAT driver.

2017-09-08  Justin Squirek  <squirek@adacore.com>

* checks.adb (Insert_Valid_Check): Manually decorate
the generated temporary for range valdity checks.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* usage.adb (Usage): Document new -gnatw.q/-gnatw.Q switches.

2017-09-08  Justin Squirek  <squirek@adacore.com>

* switch-c.adb (Scan_Front_End_Switches): Add new warning switch
case to handle underscore flags.
* warnsw.adb, warnsw.ads (Set_Underscore_Warning_Switch): Create
new procedure to handle underscores.

From-SVN: r251893

[multiple changes]

2017-09-08  Javier Miranda  <miranda@adacore.com>

* exp_ch4.adb (Expand_N_Op_Divide): Reordering code that handles
divisions with fixed point results to avoid generating twice
the runtime check on divide by zero.
* checks.adb (Apply_Divide_Checks): Ensure that operands are
not evaluated twice (once for their runtime checks and once for
their regular computation).

2017-09-08  Yannick Moy  <moy@adacore.com>

* sem_prag.adb (Analyze_Part_Of): Add missing
return statements after issuing errors.  Add detection of
out-of-order item and single concurrent type.

From-SVN: r251892

Makefile.in, [...]: Move libgnarl sources to libgnarl subdir.

2017-09-08  Nicolas Roche  <roche@adacore.com>

* gcc-interface/Makefile.in, a-extiti.ads, s-taprop-linux.adb,
s-osinte-solaris.adb, a-intnam.ads, s-osinte-solaris.ads,
s-tpobop.adb, s-intman-android.adb, s-tasinf.adb, s-tpobop.ads,
s-tasinf.ads, i-vxinco.adb, a-exetim-posix.adb, i-vxinco.ads,
a-astaco.adb, a-astaco.ads, s-tporft.adb, s-tpoaal.adb, a-taside.adb,
a-taside.ads, s-tpopsp-posix.adb, s-tasdeb.adb, s-tasdeb.ads,
s-tpoben.adb, a-dinopr.ads, s-inmaop-vxworks.adb, s-tpoben.ads,
s-interr-vxworks.adb, s-interr-dummy.adb, s-tassta.adb,
a-intnam-mingw.ads, s-tassta.ads, s-taasde.adb, a-stcoed.ads,
s-taasde.ads, s-osinte-darwin.adb, s-proinf.adb, s-taprop-dummy.adb,
s-osinte-darwin.ads, s-proinf.ads, s-linux.ads, a-intnam-linux.ads,
s-tasren.adb, s-tasren.ads, s-mudido.adb, g-semaph.adb, s-mudido.ads,
s-taprop-posix.adb, g-semaph.ads, s-osinte-mingw.ads, s-vxwork-x86.ads,
s-tposen.adb, s-linux-sparc.ads, s-taprop-vxworks.adb, s-tasini.adb,
s-tposen.ads, s-tasini.ads, a-etgrbu.ads, s-interr-hwint.adb,
s-osinte-linux.ads, s-taprop.ads, s-tasque.adb, s-tasque.ads,
s-taenca.adb, s-taspri-vxworks.ads, s-taenca.ads, a-dynpri.adb,
s-tpopsp-solaris.adb, a-dynpri.ads, s-taprop-hpux-dce.adb,
a-interr.adb, a-intnam-freebsd.ads, s-tarest.adb, a-interr.ads,
s-intman-susv3.adb, a-synbar.adb, a-intnam-dummy.ads, s-tadeca.adb,
s-osinte-vxworks.adb, s-tarest.ads, s-taskin.adb, a-synbar.ads,
s-taspri-hpux-dce.ads, s-tadeca.ads, s-osinte-vxworks.ads,
s-taskin.ads, s-intman-solaris.adb, a-sytaco.adb, s-vxwext-kernel.adb,
s-mudido-affinity.adb, a-sytaco.ads, s-vxwext-kernel.ads, s-taprob.adb,
s-intman-mingw.adb, s-taprob.ads, s-osinte-kfreebsd-gnu.ads,
s-osinte-dummy.ads, s-osinte-gnu.adb, s-osinte-rtems.adb, s-interr.adb,
s-inmaop.ads, s-vxwext-rtp.adb, s-osinte-gnu.ads, s-osinte-rtems.ads,
a-synbar-posix.adb, s-interr.ads, s-taspri-posix-noaltstack.ads,
s-vxwext-rtp.ads, a-synbar-posix.ads, a-extiin.ads, s-osinte-posix.adb,
s-tpinop.adb, s-tasres.ads, s-tpinop.ads, a-disedf.ads, a-diroro.ads,
s-linux-alpha.ads, a-tasatt.adb, s-solita.adb, a-intnam-solaris.ads,
a-tasatt.ads, s-solita.ads, s-tasinf-solaris.adb, s-tasinf-solaris.ads,
s-vxwork-arm.ads, s-tpopsp-posix-foreign.adb, s-intman-dummy.adb,
s-intman.ads, s-stusta.adb, s-stusta.ads, s-intman-posix.adb,
s-tpopsp-vxworks.adb, s-inmaop-dummy.adb, s-taspri-mingw.ads,
a-intnam-darwin.ads, s-osinte-aix.adb, s-osinte-dragonfly.adb,
s-osinte-aix.ads, s-tasinf-mingw.adb, s-osinte-dragonfly.ads,
s-linux-hppa.ads, s-osinte-x32.adb, s-inmaop-posix.adb,
s-tasinf-mingw.ads, s-intman-vxworks.adb, s-linux-mips.ads,
s-intman-vxworks.ads, s-osinte-android.adb, s-tasinf-linux.adb,
s-osinte-android.ads, s-vxwork-ppc.ads, s-tasinf-linux.ads,
a-dispat.adb, a-dispat.ads, s-tadert.adb, g-thread.adb, s-tadert.ads,
g-thread.ads, a-intnam-hpux.ads, s-linux-android.ads, s-tataat.adb,
a-exetim.ads, s-tataat.ads, a-reatim.adb, a-reatim.ads, thread.c,
g-boubuf.adb, s-osinte-freebsd.adb, g-boubuf.ads, s-osinte-freebsd.ads,
s-tasuti.adb, s-taspri-dummy.ads, a-exetim-mingw.adb, s-linux-x32.ads,
s-tasuti.ads, g-signal.adb, a-exetim-mingw.ads, s-interr-sigaction.adb,
g-signal.ads, s-osinte-hpux.ads, a-intnam-vxworks.ads,
s-osinte-hpux-dce.adb, s-taspri-posix.ads, s-osinte-hpux-dce.ads,
s-tasinf-vxworks.ads, g-tastus.ads, s-tpopsp-tls.adb,
s-taprop-solaris.adb, a-retide.adb, a-exetim-darwin.adb, a-retide.ads,
s-vxwext.adb, s-vxwext.ads, a-rttiev.adb, a-rttiev.ads, g-boumai.ads,
a-exetim-default.ads, s-taprop-mingw.adb, s-taspri-solaris.ads,
a-intnam-aix.ads: Move libgnarl sources to libgnarl subdir.

From-SVN: r251891

conf.py, [...]: Improve support for Ada highlighting.

        * doc/share/conf.py, doc/share/latex_elements.py,
        doc/share/ada_pygments.py, doc/Makefile: Improve support for Ada
        highlighting.

From-SVN: r251890

gnat_rm.texi, [...]: Update documentation.

       * gnat_rm.texi, gnat_ugn.texi,
        doc/gnat_ugn/the_gnat_compilation_model.rst,
        doc/gnat_ugn/getting_started_with_gnat.rst,
        doc/gnat_ugn/inline_assembler.rst,
        doc/gnat_ugn/building_executable_programs_with_gnat.rst,
        doc/gnat_ugn/elaboration_order_handling_in_gnat.rst,
        doc/gnat_ugn/about_this_guide.rst,
        doc/gnat_ugn/platform_specific_information.rst,
        doc/gnat_ugn/example_of_binder_output.rst,
        doc/gnat_ugn/gnat_and_program_execution.rst,
        doc/gnat_ugn/gnat_utility_programs.rst,
        doc/gnat_rm/implementation_of_specific_ada_features.rst,
        doc/gnat_rm/interfacing_to_other_languages.rst,
        doc/gnat_rm/implementation_defined_aspects.rst,
        doc/gnat_rm/intrinsic_subprograms.rst,
        doc/gnat_rm/implementation_defined_characteristics.rst,
        doc/gnat_rm/implementation_advice.rst,
        doc/gnat_rm/implementation_defined_attributes.rst,
        doc/gnat_rm/compatibility_and_porting_guide.rst,
        doc/gnat_rm/standard_library_routines.rst,
        doc/gnat_rm/the_gnat_library.rst,
        doc/gnat_rm/implementation_defined_pragmas.rst,
        doc/gnat_rm/representation_clauses_and_pragmas.rst,
        doc/gnat_rm/standard_and_implementation_defined_restrictions.rst,
        doc/gnat_rm/obsolescent_features.rst,
        doc/gnat_rm/about_this_guide.rst,
        doc/gnat_rm/the_implementation_of_standard_i_o.rst,
        doc/gnat_rm/implementation_of_ada_2012_features.rst,
        doc/gnat_ugn.rst,
        doc/gnat_rm.rst: Update documentation.

From-SVN: r251889

libgomp.texi (Top): openacc.org now uses https.

* libgomp.texi (Top): www.openacc.org now uses https.
(Enabling OpenACC): Ditto.
(acc_get_num_devices): Ditto.
(acc_set_device_type): Ditto.
(acc_get_device_type): Ditto.
(acc_set_device_num): Ditto.
(acc_get_device_num): Ditto.
(acc_async_test): Ditto.
(acc_async_test_all): Ditto.
(acc_wait): Ditto.
(acc_wait_all): Ditto.
(acc_wait_all_async): Ditto.
(acc_wait_async): Ditto.
(acc_init): Ditto.
(acc_shutdown): Ditto.
(acc_on_device): Ditto.
(acc_malloc): Ditto.
(acc_free): Ditto.
(acc_copyin): Ditto.
(acc_present_or_copyin): Ditto.
(acc_create): Ditto.
(acc_present_or_create): Ditto.
(acc_copyout): Ditto.
(acc_delete): Ditto.
(acc_update_device): Ditto.
(acc_update_self): Ditto.
(acc_map_data): Ditto.
(acc_unmap_data): Ditto.
(acc_deviceptr): Ditto.
(acc_hostptr): Ditto.
(acc_is_present): Ditto.
(acc_memcpy_to_device): Ditto.
(acc_memcpy_from_device): Ditto.
(acc_get_current_cuda_device): Ditto.
(acc_get_current_cuda_context): Ditto.
(acc_get_cuda_stream): Ditto.
(acc_set_cuda_stream): Ditto.
(ACC_DEVICE_TYPE): Ditto.
(ACC_DEVICE_NUM): Ditto.
(OpenACC Library Interoperability): Ditto.

From-SVN: r251888

s-dwalin.ads, [...]: New.

2017-09-08  Arnaud Charlet <charlet@adacore.com>

* s-dwalin.ads, s-dwalin.adb, s-trasym-dwarf.adb, s-objrea.ads,
s-objrea.adb, s-tsmona-linux.adb, s-tsmona-mingw.adb: New.
* gcc-interface/Makefile.in: Enable s-trasym-dwarf.adb on x86*linux.

From-SVN: r251887

[multiple changes]

2017-09-08  Bob Duff  <duff@adacore.com>

* s-ststop.ads, s-ststop.adb, rtsfind.ads (String_Input_Tag):
New routine to read the Tag robustly.
* exp_attr.adb (Input): Change the expansion of 'Input,
in the class-wide case, to call String_Input_Tag instead of
String_Input_Blk_IO.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* s-rident.ads (Restriction_Id): reorder enum
literals, so that Pure_Barriers is no longer in range of the
Cunit_Boolean_Restrictions subtype.

2017-09-08  Nicolas Roche  <roche@adacore.com>

* a-taster.ads, a-taster.adb: Move to libgnarl
* gcc-interface/Makefile.in: Remove obsolete targets. Code cleanups.
Add support for files in libgnarl.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

* exp_ch4.adb (Expand_N_Type_Conversion): Do not apply
accessibility check to an interface conversion, whose purpose
is to perform a pointer adjustment in a dispatching call.
* exp_ch6.adb (Expand_Call_JHelper): Add accessibility checks
when the actual is a construct that involves a dereference of an
expression that includes a formal of the enclosing subprogram,
In such cases, the accessibility level of the actual is that of
the corresponding formal, which is passed in as an additional
actual in the outer call.

From-SVN: r251886

[multiple changes]

2017-09-08  Bob Duff  <duff@adacore.com>

* exp_intr.adb (Add_Source_Info): Do not decode
file names; they were not encoded in the first place.

2017-09-08  Bob Duff  <duff@adacore.com>

* a-tags.adb (Internal_Tag): Unsuppress checks, so we get
exceptions instead of crashes. Check for absurdly long strings
and empty strings. Empty strings cause trouble because they can
have super-null ranges (e.g. 100..10), which causes Ext_Copy to
be empty, which causes an array index out of bounds.
* s-ststop.adb (Input): Unsuppress checks, so we get exceptions
instead of crashes.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* sem_util.adb (Is_CCT_Instance): allow use in
the context of protected types.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* a-tigeli.adb: minor remove extra whitespace.

From-SVN: r251885

[multiple changes]

2017-09-08  Gary Dismukes  <dismukes@adacore.com>

* par-ch4.adb: Reformatting of an error message.

2017-09-08  Javier Miranda  <miranda@adacore.com>

* sem_ch3.adb (Resolve_Name): Under ASIS mode analyze overloaded
identifiers to ensure their correct decoration of names on
aspect expressions.

2017-09-08  Yannick Moy  <moy@adacore.com>

* exp_attr.adb (Expand_Loop_Entry_Attribute): Do
not skip a loop coming from source which is rewritten into a loop.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

* freeze.adb (Wrap_Imported_Subprogram): Indicate that the
wrapper has convention Ada, to prevent spurious warnings on
unconstrained array parameters.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* sem_prag.adb (Check_Variant): Use First_Non_Pragma/Next_Non_Pragma.
(Analyze_Pragma) <Pragma_Unchecked_Union>: Likewise.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* sem_ch6.adb (Freeze_Expr_Types): Rename Spec_Id into Def_Id.

From-SVN: r251884

[multiple changes]

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* exp_intr.adb (Append_Entity_Name): Move to ...
* sem_util.ads, sem_util.adb: ... here to share it.
(Subprogram_Name): New subprogram, to compute the name of the enclosing
subprogram/entity.
* errutil.adb (Error_Msg): Fill new field Node.
* erroutc.ads (Subprogram_Name_Ptr): New.
(Error_Msg_Object): New field Node.
* erroutc.adb (dmsg, Output_Msg_Text): Take new field Node into account.
* errout.adb (Error_Msg): New variant with node id parameter.
Fill new parameter Node when emitting messages. Revert previous
changes for Include_Subprogram_In_Messages.
* sem_ch5.adb (Check_Unreachable_Code): Supply Node parameter when
generating warning message.

2017-09-08  Ed Schonberg  <schonberg@adacore.com>

* par-ch4.adb (P_Iterated_Component_Association): Place construct
under -gnat2020 flag, given that it is a future feature of
the language.
* sem_aggr.adb (Resolve_Iterated_Component_Association): Mark
defining identifier as referenced to prevent spurious warnings:
corresponding loop is expanded into one or more loops whose
variable has the same name, and the expression uses those names
and not the original one.

From-SVN: r251883

[multiple changes]

2017-09-08  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_elab.adb (Check_A_Call): Do not consider
references to internal variables for SPARK semantics.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* inline.adb (In_Package_Spec): refine type of
the parameter from Node_Id to Entity_Id.

2017-09-08  Justin Squirek  <squirek@adacore.com>

* exp_ch5.adb (Expand_Formal_Container_Loop):
Reset the scope of the loop parameter after it is reanalyzed.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* sem_util.ads (Set_Rep_Info): New inline procedure.
* sem_util.adb (Set_Rep_Info): Implement it.
* sem_ch3.adb (Process_Subtype): If the case of a constraint present,
always copy the representation aspects onto the subtype.

From-SVN: r251882

g-dynhta.adb, [...] (Get_First_Key, [...]): Correction of the return type from access type to option type.

2017-09-08  Georges-Alex Jaloyan  <jaloyan@adacore.com>

* g-dynhta.adb, g-dynhta.ads (Get_First_Key, Get_Next_key):
Correction of the return type from access type to option type.
(Simple_HTable): Moving the Instance_Data to ads file.

From-SVN: r251881

[multiple changes]

2017-09-08  Yannick Moy  <moy@adacore.com>

* sem_prag.adb: Use System.Case_Util.To_Lower to simplify code.

2017-09-08  Arnaud Charlet  <charlet@adacore.com>

* opt.ads (Include_Subprogram_In_Messages): New variable.
* errout.ads (Current_Subprogram_Ptr): New variable.
* errout.adb (Error_Msg): Prepend current subprogram info
in messages if Include_Subprogram_In_Messages is set.
* sem_util.adb (elab code): Initialize Current_Subprogram_Ptr to
Current_Subprogram.
* gnat1drv.adb (Adjust_Global_Switches): Set
Include_Subprogram_In_Messages when -gnatdJ is set.
* debug.adb: Document and reserve -gnatdJ.

2017-09-08  Georges-Axel Jaloyan  <jaloyan@adacore.com>

* g-dynhta.adb, g-dynhta.ads (Get_First_Key, Get_Next_Key): New
functions to iterate over simple hastables.
(Load_Factor_HTable): Remove obsolete and inefficient implementation.

2017-09-08  Javier Miranda  <miranda@adacore.com>

* exp_ch6.adb (Unqual_BIP_Function_Call): Adding
missing checks on the presence of Entity() before checking the
entity attributes.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

* sem_ch6.adb (Analyze_Expression_Function): Reorder some
statements, use local variable and remove unnecessary processing.

From-SVN: r251880