tree-loop-distribution.c (break_alias_scc_partitions): Add comment and set PTYPE_SEQUENTIAL for merged partition.

* tree-loop-distribution.c (break_alias_scc_partitions): Add comment
and set PTYPE_SEQUENTIAL for merged partition.

From-SVN: r253678

re PR tree-optimization/69728 (internal compiler error: in outer_projection_mupa, at graphite-sese-to-poly.c:1175)

2017-10-12  Richard Biener  <rguenther@suse.de>

PR tree-optimization/69728
Revert
2017-09-19  Richard Biener  <rguenther@suse.de>

PR tree-optimization/69728
* graphite-sese-to-poly.c (schedule_error): New global.
(add_loop_schedule): Handle empty domain by failing the
schedule.
(build_original_schedule): Handle schedule_error.

* graphite-sese-to-poly.c (add_loop_schedule): Handle empty
domain by returning an unchanged schedule.

* gcc.dg/graphite/pr69728.c: Adjust to reflect we can handle
the loop now.  Remove unrelated undefined behavior.

From-SVN: r253677

genrecog.c (validate_pattern): For VEC_SELECT verify that CONST_INT selectors are 0 to GET_MODE_NUNITS (imode) - 1.

* genrecog.c (validate_pattern): For VEC_SELECT verify that
CONST_INT selectors are 0 to GET_MODE_NUNITS (imode) - 1.

From-SVN: r253676

Makefile.in (TAGS): Merge all the *.def files into one pattern.

* Makefile.in (TAGS): Merge all the *.def files into one pattern.
Handle params.def.

From-SVN: r253674

re PR c++/82159 (ICE: in assign_temp, at function.c:961)

PR c++/82159
* expr.c (store_field): Don't optimize away bitsize == 0 store
from CALL_EXPR with addressable return type.

* g++.dg/opt/pr82159-2.C: New test.

From-SVN: r253673

re PR sanitizer/82353 (runtime ubsan crash)

PR target/82353
* gcc.target/i386/i386.exp (tests): Revert the '.C' extension change.
* gcc.target/i386/pr82353.C: Moved to ...
* g++.dg/ubsan/pr82353.C: ... here.  Restrict to i?86/x86_64 && lp64.

From-SVN: r253672

rs6000: Remove TARGET_ISEL64

TARGET_ISEL64 just means TARGET_ISEL && TARGET_POWERPC64.  Since
everywhere it is used uses :GPR already, we can just as well use
TARGET_ISEL always.

* config/rs6000/rs6000.h (TARGET_ISEL64): Delete.
* config/rs6000/rs6000.md (sel): Delete mode attribute.
(mov<mode>cc, isel_signed_<mode>, isel_unsigned_<mode>,
*isel_reversed_signed_<mode>, *isel_reversed_unsigned_<mode>): Use
TARGET_ISEL instead of TARGET_ISEL<sel>.

From-SVN: r253671

Daily bump.

From-SVN: r253670

* config/rs6000/rs6000.c (rs6000_xcoff_asm_output_aligned_decl_common): Test for NULL decl.

From-SVN: r253667

go-system.h (__STDC_FORMAT_MACROS): Define before including any system header files, as is done in ../system.h.

* go-system.h (__STDC_FORMAT_MACROS): Define before including any
system header files, as is done in ../system.h.

From-SVN: r253666

rs6000: Improve isel

This removes output_isel.  Instead, the define_insn's now output the
isel instructions directly.

It adds a reg_or_zero operand predicate, too, because the reg_or_cint
predicate is too lax here.  Also use it in the "reversed" variants of
the instructions.

* config/rs6000/predicates.md (zero_constant, all_ones_constant):
Move up in file.
(reg_or_cint_operand): Fix comment.
(reg_or_zero_operand): New predicate.
* config/rs6000/rs6000-protos.h (output_isel): Delete.
* config/rs6000/rs6000.c (output_isel): Delete.
* config/rs6000/rs6000.md (isel_signed_<mode>): Use reg_or_zero_operand
instead of reg_or_cint_operand.  Output instruction directly (not via
output_isel).
(isel_unsigned_<mode>): Ditto.
(*isel_reversed_signed_<mode>): Use reg_or_zero_operand instead of
gpc_reg_operand.  Add an instruction alternative for this.  Output
instruction directly.
(*isel_reversed_unsigned_<mode>): Ditto.

From-SVN: r253665

runtime: fix issues on AIX about uintptr(_t)

    Reviewed-on: https://go-review.googlesource.com/69891

From-SVN: r253664

i386.c (ix86_canonicalize_comparison): New function.

* config/i386/i386.c (ix86_canonicalize_comparison): New function.
(TARGET_CANONICALIZE_COMPARISON): Define.

testsuite/ChangeLog:

* gcc.target/i386/387-ficom-2.c: New test.

From-SVN: r253663

re PR middle-end/80421 (Case dispatch is scrambled in switch-statement)

PR middle-end/80421
* gcc.c-torture/execute/pr80421.c: New test.

From-SVN: r253662

re PR tree-optimization/78558 (Incorrect loop optimization leads to crash)

PR tree-optimization/78558
* gcc.dg/vect/pr78558.c: New test.

From-SVN: r253661

re PR c++/82414 (Issue with ODR/LTO in G++)

PR c++/82414
* g++.dg/lto/pr82414_0.C: New test.

From-SVN: r253660

re PR c++/78523 (ICE on valid lambda code with implicit capture)

PR c++/78523
* g++.dg/cpp1y/pr78523.C: New test.

From-SVN: r253659

re PR c++/80194 (ICE with local constant referenced by a lambda expression)

PR c++/80194
* g++.dg/cpp1y/pr80194.C: New test.

From-SVN: r253658

re PR target/81422 ([aarch64] internal compiler error: in update_equiv_regs, at ira.c:3425)

/gcc
2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

PR target/81422
* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
Check whether the dest is REG before adding REG_EQUIV note.

/gcc/testsuite
2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

PR target/81422
       * gcc.target/aarch64/pr81422.C: New test.

From-SVN: r253657

re PR sanitizer/82353 (runtime ubsan crash)

2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>

PR sanitizer/82353
* lra.c (collect_non_operand_hard_regs): Don't ignore operator
locations.
* lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
(make_hard_regno_born, make_hard_regno_dead): Update
bb_killed_pseudos and bb_gen_pseudos.

2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>

PR sanitizer/82353
* gcc.target/i386/i386.exp (tests): Permit '.C' extension.
* gcc.target/i386/pr82353.C: New.

From-SVN: r253656

[PATCH] Include path enumeration

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00693.html
gcc/
* incpath.h (enum incpath_kind): Name enum, prefix values.
(add_path, add_cpp_dir_path, get_added_cpp_dirs): Use incpath_kind.
* incpath.c (heads, tails): Use INC_MAX.
(add_env_var_paths, add_standard_paths): Use incpath_kind.
(merge_include_chains, split_quote_chain,
register_include_chains): Update incpath_kind names.
(add_cpp_dir_path, add_path, get_added_cpp_dirs): Use incpath_kind.
* config/darwin-c.c (add_system_framework_path): Update incpath_kind
names.
(add_framework_path, darwin_register_objc_includes): Likewise.
* config/vms/vms-c.c (vms_c_register_includes): Likewise.
gcc/c-family/
* c-opts.c (add_prefixed_path): Change chain to incpath_kind.
(c_common_handle_option): Update incpath_kind names.
gcc/fortran/
* cpp.c (gfc_cpp_add_include_path): Update incpath_e names.
(gfc_cpp_add_include_path_after): Likewise.

From-SVN: r253654

i386.md (*cmp<X87MODEF:mode>_<SWI24:mode>_i387): Do not use float_operator operator predicate.

* config/i386/i386.md (*cmp<X87MODEF:mode>_<SWI24:mode>_i387):
Do not use float_operator operator predicate.
(*cmp<X87MODEF:mode>_<SWI24:mode>_cc_i387): Ditto.
* config/i386/predicates.md (float_operator): Remove predicate.

* config/i386/i386.md (*jcc<mode>_0_i387): Remove insn pattern.
(*jccxf_i387): Ditto.
(*jcc<mode>_i387): Ditto.
(*jccu<mode>_i387): Ditto.
(*jcc<X87MODEF:mode>_<SWI24:mode>_i387): Ditto.
(*jcc_*_i387 splitters): Remove.
* config/i386/i386-protos.h (ix86_split_fp_branch): Remove prototype.
* config/i386/i386.c (ix86_split_fp_branch): Remove.
* config/i386/predicates.md (ix86_swapped_fp_comparison_operator):
Remove predicate.

testsuite/ChangeLog:

* gcc.target/i386/387-ficom-1.c: New test.

From-SVN: r253653

profile-count.h (slow_safe_scale_64bit): New function.

* profile-count.h (slow_safe_scale_64bit): New function.
(safe_scale_64bit): New inline.
(profile_count::max_safe_multiplier): Remove; use safe_scale_64bit.
* profile-count.c: Include wide-int.h
(slow_safe_scale_64bit): New.

From-SVN: r253652

struct-layout-1_generate.c (generate_fields): Fix typo in address computation of end of complex_attrib_array_types.

* gcc.dg/struct-layout-1_generate.c (generate_fields): Fix typo in
address computation of end of complex_attrib_array_types.

From-SVN: r253650

[PATCH] DECL_ASSEMBLER_NAME and friends

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00582.html
* tree.h (DECL_ASSEMBLER_NAME_SET_P): Don't check
HAS_DECL_ASSEMBLER_NAME_P.
* gimple-expr.c (gimple_decl_printable_name: Check
HAS_DECL_ASSEMBLER_NAME_P too.
* ipa-utils.h (type_in_anonymous_namespace_p): Check
DECL_ASSEMBLER_NAME_SET_P of TYPE_NAME.
(odr_type_p): No need to assert TYPE_NAME is a TYPE_DECL.
* passes.c (rest_of_decl_compilation): Check
HAS_DECL_ASSEMBLER_NAME_P too.
* recog.c (verify_changes): Likewise.
* tree-pretty-print.c (dump_decl_name): Likewise.
* tree-ssa-structalias.c (alias_get_name): Likewise.  Reimplement.

c/
* c-decl.c (grokdeclarator): Check HAS_DECL_ASSEMBLER_NAME_P too.

From-SVN: r253649

[PATCH] DECL_ASSEMBLER_NAME and friends

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00582.html
* tree.h (DECL_ASSEMBLER_NAME_RAW): New.
(SET_DECL_ASSEMBLER_NAME): Use it.
(DECL_ASSEMBLER_NAME_SET_P): Likewise.
(COPY_DECL_ASSEMBLER_NAME): Likewise.
* tree.c (decl_assembler_name): Use DECL_ASSEMBLER_NAME_RAW.

lto/
* lto.c (mentions_vars_p_decl_with_vis): Use
DECL_ASSEMBLER_NAME_RAW.
(lto_fixup_prevailing_decls): Likewise.

cp
* decl2.c (struct mangled_decl_hash): Use DECL_ASSEMBLER_NAME_RAW.
(record_mangling): Likewise.

From-SVN: r253647

config.gcc (i386, x86_64): Add extra objects.

* config.gcc (i386, x86_64): Add extra objects.
* i386/i386-protos.h (ix86_rip_relative_addr_p): Declare.
(ix86_min_insn_size): Declare.
(ix86_issue_rate): Declare.
(ix86_adjust_cost): Declare.
(ia32_multipass_dfa_lookahead): Declare.
(ix86_macro_fusion_p): Declare.
(ix86_macro_fusion_pair_p): Declare.
(ix86_bd_has_dispatch): Declare.
(ix86_bd_do_dispatch): Declare.
(ix86_core2i7_init_hooks): Declare.
(ix86_atom_sched_reorder): Declare.
* i386/i386.c Move all CPU cost tables to x86-tune-costs.h.
(COSTS_N_BYTES): Move to x86-tune-costs.h.
(DUMMY_STRINGOP_ALGS):x86-tune-costs.h.
(rip_relative_addr_p): Rename to ...
(ix86_rip_relative_addr_p): ... this one; export.
(memory_address_length): Update.
(ix86_issue_rate): Move to x86-tune-sched.c.
(ix86_flags_dependent): Move to x86-tune-sched.c.
(ix86_agi_dependent): Move to x86-tune-sched.c.
(exact_dependency_1): Move to x86-tune-sched.c.
(exact_store_load_dependency): Move to x86-tune-sched.c.
(ix86_adjust_cost): Move to x86-tune-sched.c.
(ia32_multipass_dfa_lookahead): Move to x86-tune-sched.c.
(ix86_macro_fusion_p): Move to x86-tune-sched.c.
(ix86_macro_fusion_pair_p): Move to x86-tune-sched.c.
(do_reorder_for_imul): Move to x86-tune-sched-atom.c.
(swap_top_of_ready_list): Move to x86-tune-sched-atom.c.
(ix86_sched_reorder): Move to x86-tune-sched-atom.c.
(core2i7_first_cycle_multipass_init): Move to x86-tune-sched-core.c.
(core2i7_dfa_post_advance_cycle): Move to x86-tune-sched-core.c.
(min_insn_size): Rename to ...
(ix86_min_insn_size): ... this one; export.
(core2i7_first_cycle_multipass_begin): Move to x86-tune-sched-core.c.
(core2i7_first_cycle_multipass_issue): Move to x86-tune-sched-core.c.
(core2i7_first_cycle_multipass_backtrack): Move to x86-tune-sched-core.c.
(core2i7_first_cycle_multipass_end): Move to x86-tune-sched-core.c.
(core2i7_first_cycle_multipass_fini): Move to x86-tune-sched-core.c.
(ix86_sched_init_global): Break up logic to ix86_core2i7_init_hooks.
(ix86_avoid_jump_mispredicts): Update.
(TARGET_SCHED_DISPATCH): Move to ix86-tune-sched-bd.c.
(TARGET_SCHED_DISPATCH_DO): Move to ix86-tune-sched-bd.c.
(TARGET_SCHED_REORDER): Move to ix86-tune-sched-bd.c.
(DISPATCH_WINDOW_SIZE): Move to ix86-tune-sched-bd.c.
(MAX_DISPATCH_WINDOWS): Move to ix86-tune-sched-bd.c.
(MAX_INSN): Move to ix86-tune-sched-bd.c.
(MAX_IMM): Move to ix86-tune-sched-bd.c.
(MAX_IMM_SIZE): Move to ix86-tune-sched-bd.c.
(MAX_IMM_32): Move to ix86-tune-sched-bd.c.
(MAX_IMM_64): Move to ix86-tune-sched-bd.c.
(MAX_LOAD): Move to ix86-tune-sched-bd.c.
(MAX_STORE): Move to ix86-tune-sched-bd.c.
(BIG): Move to ix86-tune-sched-bd.c.
(enum dispatch_group): Move to ix86-tune-sched-bd.c.
(enum insn_path): Move to ix86-tune-sched-bd.c.
(get_mem_group): Move to ix86-tune-sched-bd.c.
(is_cmp): Move to ix86-tune-sched-bd.c.
(dispatch_violation): Move to ix86-tune-sched-bd.c.
(is_branch): Move to ix86-tune-sched-bd.c.
(is_prefetch): Move to ix86-tune-sched-bd.c.
(init_window): Move to ix86-tune-sched-bd.c.
(allocate_window): Move to ix86-tune-sched-bd.c.
(init_dispatch_sched): Move to ix86-tune-sched-bd.c.
(is_end_basic_block): Move to ix86-tune-sched-bd.c.
(process_end_window): Move to ix86-tune-sched-bd.c.
(allocate_next_window): Move to ix86-tune-sched-bd.c.
(find_constant): Move to ix86-tune-sched-bd.c.
(get_num_immediates): Move to ix86-tune-sched-bd.c.
(has_immediate): Move to ix86-tune-sched-bd.c.
(get_insn_path): Move to ix86-tune-sched-bd.c.
(get_insn_group): Move to ix86-tune-sched-bd.c.
(count_num_restricted): Move to ix86-tune-sched-bd.c.
(fits_dispatch_window): Move to ix86-tune-sched-bd.c.
(add_insn_window): Move to ix86-tune-sched-bd.c.
(add_to_dispatch_window): Move to ix86-tune-sched-bd.c.
(debug_dispatch_window_file): Move to ix86-tune-sched-bd.c.
(debug_dispatch_window): Move to ix86-tune-sched-bd.c.
(debug_insn_dispatch_info_file): Move to ix86-tune-sched-bd.c.
(debug_ready_dispatch): Move to ix86-tune-sched-bd.c.
(do_dispatch): Move to ix86-tune-sched-bd.c.
(has_dispatch): Move to ix86-tune-sched-bd.c.
* i386/t-i386: Add new object files.
* i386/x86-tune-costs.h: New file.
* i386/x86-tune-sched-atom.c: New file.
* i386/x86-tune-sched-bd.c: New file.
* i386/x86-tune-sched-core.c: New file.
* i386/x86-tune-sched.c: New file.

From-SVN: r253646

pretty-print.c [_WIN32] (colorize_init): Remove.

2017-10-11  Liu Hao  <lh_mouse@126.com>

* pretty-print.c [_WIN32] (colorize_init): Remove.  Use
the generic version below instead.
(should_colorize): Recognize Windows consoles as terminals
for MinGW targets.
* pretty-print.c [__MINGW32__] (write_all): New function.
[__MINGW32__] (find_esc_head): Likewise.
[__MINGW32__] (find_esc_terminator): Likewise.
[__MINGW32__] (eat_esc_sequence): Likewise.
[__MINGW32__] (mingw_ansi_fputs): New function that handles
ANSI escape codes.
(pp_write_text_to_stream): Use mingw_ansi_fputs instead of fputs
for MinGW targets.

From-SVN: r253645

tree-ssa-loop-niter.c (infer_loop_bounds_from_pointer_arith): Properly call analyze_scalar_evolution with the loop of the stmt.

2017-10-11  Richard Biener  <rguenther@suse.de>

* tree-ssa-loop-niter.c (infer_loop_bounds_from_pointer_arith):
Properly call analyze_scalar_evolution with the loop of the stmt.

From-SVN: r253644

tree.def (POLYNOMIAL_CHREC): Remove CHREC_VARIABLE tree operand.

2017-10-11  Richard Biener  <rguenther@suse.de>

* tree.def (POLYNOMIAL_CHREC): Remove CHREC_VARIABLE tree operand.
* tree-core.h (tree_base): Add chrec_var union member.
* tree.h (CHREC_VAR): Remove.
(CHREC_LEFT, CHREC_RIGHT, CHREC_VARIABLE): Adjust.
* tree-chrec.h (build_polynomial_chrec): Adjust.
* tree-chrec.c (reset_evolution_in_loop): Use build_polynomial_chrec.
* tree-pretty-print.c (dump_generic_node): Use CHREC_VARIABLE.

From-SVN: r253643

X+Y < X iff Y<0 moved to match.pd

2017-10-11  Marc Glisse  <marc.glisse@inria.fr>

gcc/
* fold-const.c (fold_binary_loc) [X +- Y CMP X]: Move ...
* match.pd: ... here.
((T) X == (T) Y): Relax condition.

gcc/testsuite/
* gcc.dg/Wstrict-overflow-7.c: Xfail.
* gcc.dg/pragma-diag-3.c: Likewise.

From-SVN: r253642

re PR tree-optimization/82472 (ICE in generate_code_for_partition, at tree-loop-distribution.c:1145)

PR tree-optimization/82472
* tree-loop-distribution.c (sort_partitions_by_post_order): Refine
comment.
(break_alias_scc_partitions): Update postorder number.

gcc/testsuite
* gcc.dg/tree-ssa/pr82472.c: New test.

From-SVN: r253641

Do not error for no_sanitize attributes (PR sanitizer/82490).

2017-10-11  Martin Liska  <mliska@suse.cz>

PR sanitizer/82490
* opts.c (parse_no_sanitize_attribute): Do not use error_value
variable.
* opts.h (parse_no_sanitize_attribute): Remove last argument.
2017-10-11  Martin Liska  <mliska@suse.cz>

PR sanitizer/82490
* c-attribs.c (handle_no_sanitize_attribute): Report directly
Wattributes warning.
2017-10-11  Martin Liska  <mliska@suse.cz>

PR sanitizer/82490
* c-c++-common/ubsan/attrib-5.c: New test.

From-SVN: r253640

Fix use-after-scope error.

2017-10-11  Martin Liska  <mliska@suse.cz>

* print-rtl.c (print_insn): Move declaration of idbuf
to same scope as name.

From-SVN: r253639

Revert last commit.

From-SVN: r253638

Do not handled volatile arguments (PR sanitizer/82484).

2017-10-11  Martin Liska  <mliska@suse.cz>

PR sanitizer/82484
* sanopt.c (sanitize_rewrite_addressable_params): Do not handle
volatile arguments.
2017-10-11  Martin Liska  <mliska@suse.cz>

PR sanitizer/82484
* gcc.dg/asan/pr82484.c: New test.

From-SVN: r253637

Fix a test-case for Darwin.

2017-10-11  Martin Liska  <mliska@suse.cz>

* c-c++-common/ubsan/ptr-overflow-sanitization-1.c: Scan
optimized dump rather than assembly.

From-SVN: r253636

Enable ifunc attribute by default for ARM GNU/Linux

Similar to other architectures with IFUNC binutils/glibc support, this
patch enables the ifunc attribute for ARM GNU/Linux.  Although not
required for build master GLIBC, the intention is to allow refactor
its assembly implementation to C.

Tested compilation of glibc (in conjunction with a glibc patch to
support using the attribute on ARM) with build-many-glibcs.py (with
a patch to add a armv7 variant which enables multiarch).  I have
not run the GCC tests for ARM.

* config.gcc (default_gnu_indirect_function): Default to yes for
arm*-*-linux* with glibc.

From-SVN: r253635

* g++.dg/cpp/string-3.C: Fix dg-final.

From-SVN: r253634

re PR c++/80412 ([c++17] crash with class template deduction guide and inheritance)

2017-10-11  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/80412
* g++.dg/cpp1z/class-deduction44.C: New.

From-SVN: r253632

re PR c++/82230 (ICE: in tsubst, at cp/pt.c:13686 when binding lambda to variable inside a generic lambda inside a template member function inside a template class)

2017-10-11  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/82230
* g++.dg/cpp1y/lambda-generic-ice8.C: New.

From-SVN: r253631

re PR c++/81299 (Spurious "set but not used" warning with constexpr variable)

2017-10-11  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/81299
* g++.dg/cpp1y/lambda-generic-ice7.C: New.

From-SVN: r253630

tree-scalar-evolution.c (get_scalar_evolution): Handle default-defs and types we do not want to analyze.

2017-10-11  Richard Biener  <rguenther@suse.de>

* tree-scalar-evolution.c (get_scalar_evolution): Handle
default-defs and types we do not want to analyze.
(interpret_loop_phi): Replace unreachable code with an assert.
(compute_scalar_evolution_in_loop): Remove and inline ...
(analyze_scalar_evolution_1): ... here, replacing condition with
what makes the intent clearer.  Remove handling of cases
get_scalar_evolution now handles.

From-SVN: r253629

Allow 2 insns from sched group to issue in same cycle, if no stalls needed.

gcc/
PR rtl-optimization/81434
* haifa-sched.c (prune_ready_list): Init min_cost_group to 0.  Update
comment for main loop.  In sched_group_found if, also add checks for
pass and min_cost_group.

From-SVN: r253628

Daily bump.

From-SVN: r253627

rs6000: insn_cost

This adds an implementation of the insn_cost hook to rs6000.

This implementations is very minimal (so far).  It is mostly based on
how many machine instructions are generated by an RTL insn, and it also
looks at the instruction type.  Floating point insns are costed as if
all machine instructions it generates are floating point; the other
insns are treated as if all but one are integer insns (and one is the
specified type).  Load instructions are treated as costing twice as
much, and load locked and sync insns as three times as much (just like
the original costs), and integer div and mul are handled as well.

Each define_insn (etc.) can set a "cost" attribute to override this
general cost.  With optimization for size, the cost is set equal to the
value of the "length" attribute.

With this, the majority of cost differences between old and new are
where the old was wrong.  Also, benchmarks show a slight win (if
anything).  Some refinements are obviously needed.

* config/rs6000/rs6000.c (TARGET_INSN_COST): New.
(rs6000_insn_cost): New function.
* config/rs6000/rs6000.md (cost): New attribute.

From-SVN: r253624

[C++ PATCH] hash-table for extern-c fns.

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00614.html
* name-lookup.c (extern_c_fns): Rename to ...
(extern_c_decls): ... here.
(check_extern_c_conflict, extern_c_linkage_bindings): Update.
(do_pushdecl): Check extern-c fns and vars.

* g++.dg/lookup/extern-c-redecl6.C: New.
* g++.dg/lookup/extern-c-hidden.C: Adjust diagnostics.
* g++.dg/lookup/extern-c-redecl.C: Likewise.
* g++.old-deja/g++.other/using9.C: Likewise.

From-SVN: r253622

re PR c++/78006 (Segmentation fault with 'using' and generic lambda trailing return types)

2017-10-10  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/78006
* g++.dg/cpp1y/auto-fn40.C: New.

From-SVN: r253621

[C++ PATCH] Kill unneeded hash specialization

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00621.html
* cp-tree.h (default_hash_traits <lang_identifier *>): Delete
specialization.

From-SVN: r253620

re PR c++/81032 (ICE with lambda and broken constexpr)

2017-10-10  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/81032
* g++.dg/cpp1y/lambda-generic-ice6.C: New.

From-SVN: r253619

re PR rtl-optimization/68205 (ICE compiling gcc.c-torture/execute/20040709-2.c with -fno-common on arm-none-eabi)

PR rtl-optimization/68205
* gcc.c-torture/execute/20040709-3.c: New test.

From-SVN: r253618

re PR c++/67625 (some constexpr expressions rejected as enumerator value)

2017-10-10  Jakub Jelinek  <jakub@redhat.com>

PR c++/67625
* g++.dg/cpp0x/pr67625.C: New test.

From-SVN: r253617

re PR middle-end/70887 (internal compiler error in trunc_int_for_mode, at explow.c:78)

2017-10-10  Jakub Jelinek  <jakub@redhat.com>

PR middle-end/70887
* g++.dg/cpp0x/pr70887.C: New test.

From-SVN: r253616

re PR c++/70338 (ICE combining debug symbols, range-for in lambda in function template accessing captured variable-size array)

PR c++/70338
* g++.dg/cpp0x/pr70338.C: New test.

From-SVN: r253615

re PR c++/77786 (ICE in tsubst_copy, at cp/pt.c:13040)

PR c++/77786
* g++.dg/cpp1y/pr77786.C: New test.

From-SVN: r253614

re PR c++/71875 (template specialization compile error)

PR c++/71875
* g++.dg/cpp1y/pr71875.C: New test.

From-SVN: r253613

re PR c++/77578 (ICE in cp_parser_omp_for_loop (cp/parser.c:29404))

PR c++/77578
* g++.dg/gomp/pr77578.C: New test.

From-SVN: r253612

re PR middle-end/70100 (ICE: in execute, at cfgexpand.c:6066)

PR middle-end/70100
* g++.dg/opt/pr70100.C: New test.

From-SVN: r253611

re PR c++/68252 (left operand of shift expression, while we shift > 0 integer)

2017-10-10  Jakub Jelinek  <jakub@redhat.com>

PR c++/68252
* g++.dg/other/pr68252.C: New test.

From-SVN: r253610

re PR target/79565 (ICE in copy_to_mode_reg, at explow.c:612)

PR target/79565
PR target/82483
* config/i386/i386.c (ix86_init_mmx_sse_builtins): Add
OPTION_MASK_ISA_MMX for __builtin_ia32_maskmovq,
__builtin_ia32_vec_ext_v4hi and __builtin_ia32_vec_set_v4hi.
(ix86_expand_builtin): Treat OPTION_MASK_ISA_MMX similarly
to OPTION_MASK_ISA_AVX512VL - builtins that have both
OPTION_MASK_ISA_MMX and some other bit set require both
mmx and the ISAs without the mmx bit.
* config/i386/i386-builtin.def (__builtin_ia32_cvtps2pi,
__builtin_ia32_cvttps2pi, __builtin_ia32_cvtpi2ps,
__builtin_ia32_pavgb, __builtin_ia32_pavgw, __builtin_ia32_pmulhuw,
__builtin_ia32_pmaxub, __builtin_ia32_pmaxsw, __builtin_ia32_pminub,
__builtin_ia32_pminsw, __builtin_ia32_psadbw, __builtin_ia32_pmovmskb,
__builtin_ia32_pshufw, __builtin_ia32_cvtpd2pi,
__builtin_ia32_cvttpd2pi, __builtin_ia32_cvtpi2pd,
__builtin_ia32_pmuludq, __builtin_ia32_pabsb, __builtin_ia32_pabsw,
__builtin_ia32_pabsd, __builtin_ia32_phaddw, __builtin_ia32_phaddd,
__builtin_ia32_phaddsw, __builtin_ia32_phsubw, __builtin_ia32_phsubd,
__builtin_ia32_phsubsw, __builtin_ia32_pmaddubsw,
__builtin_ia32_pmulhrsw, __builtin_ia32_pshufb, __builtin_ia32_psignb,
__builtin_ia32_psignw, __builtin_ia32_psignd, __builtin_ia32_movntq,
__builtin_ia32_paddq, __builtin_ia32_psubq, __builtin_ia32_palignr):
Add OPTION_MASK_ISA_MMX.

* gcc.target/i386/pr82483-1.c: New test.
* gcc.target/i386/pr82483-2.c: New test.

Co-Authored-By: H.J. Lu <hongjiu.lu@intel.com>
From-SVN: r253609

[C++ PATCH] Hash mangling alias

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00618.html
* decl2.c (struct mangled_decl_hash): New hash traits.
(mangled_decls): Make hash_table<mangled_decl_hash>.
(generate_mangling_alias, record_mangling): Adjust.

From-SVN: r253608

fold-vec-mult-int128-p8.c: Update options

2017-10-10  Will Schmidt <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-mult-int128-p8.c: Update options
* gcc.target/powerpc/fold-vec-mult-int128-p9.c: Update expected
instruction list.

From-SVN: r253606

[PATCH] preprocessor stringizing raw strings

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00611.html
libcpp/
PR preprocessor/82506
* macro.c (cpp_quote_string): Escape raw LFs.

gcc/testsuite/
PR preprocessor/82506
* g++.dg/cpp/string-3.C: New.

From-SVN: r253605

config.gcc (armv7*-*-freebsd*): New target.

2017-10-10  Andreas Tobler  <andreast@gcc.gnu.org>

    * config.gcc (armv7*-*-freebsd*): New target.
    (armv6*-*-freebsd*): Remove obsolete TARGET_FREEBSD_ARMv6 define.

From-SVN: r253602

More delayed lambda capture fixes.

* call.c (add_function_candidate): Use build_address.
(build_op_call_1): Call mark_lvalue_use early.
(build_over_call): Handle error from build_this.
* constexpr.c (cxx_bind_parameters_in_call): Use build_address.
(cxx_eval_increment_expression): Don't use rvalue().
* cvt.c (convert_to_void): Use mark_discarded_use.
* expr.c (mark_use): Handle PARM_DECL, NON_DEPENDENT_EXPR.  Fix
reference handling.  Don't copy the expression.
(mark_discarded_use): New.
* lambda.c (insert_capture_proxy): Add some sanity checking.
(maybe_add_lambda_conv_op): Set cp_unevaluated_operand.
* pt.c (register_local_specialization): Add sanity check.
* semantics.c (process_outer_var_ref): Fix check for existing proxy.
* typeck.c (cp_build_addr_expr_1): Handle error from
mark_lvalue_use.
(cp_build_modify_expr): Call mark_lvalue_use_nonread, handle error
from rvalue.

Handle generic lambda capture in dependent expressions.
* lambda.c (need_generic_capture, dependent_capture_r)
(do_dependent_capture): New.
* pt.c (processing_nonlambda_template): Use need_generic_capture.
* semantics.c (maybe_cleanup_point_expr)
(maybe_cleanup_point_expr_void, finish_goto_stmt)
(maybe_convert_cond): Call do_dependent_capture.
* typeck.c (build_static_cast): Remove dependent capture handling.

From-SVN: r253601

Various small C++ fixes.

* typeck.c (condition_conversion): Assert !processing_template_decl.
* semantics.c (finish_omp_clauses): Don't
fold_build_cleanup_point_expr if processing_template_decl.
(outer_var_p): A temporary can't be from an outer scope.
* pt.c (type_dependent_expression_p): Fix dependency checking of
functions without DECL_TEMPLATE_INFO.
(instantiate_decl): Use lss_copy.
* constexpr.c (is_valid_constexpr_fn): Fix lambdas before C++17.

From-SVN: r253600

Check non-dependent conversion in return from template fn.

* typeck.c (check_return_expr): Check non-dependent conversion in
templates.
* constraint.cc (check_function_concept): Don't complain about an
empty concept if seen_error.

From-SVN: r253599

x86-tune.def (X86_TUNE_AVOID_FALSE_DEP_FOR_BMI, [...]): Move to right spot in the file.

* x86-tune.def (X86_TUNE_AVOID_FALSE_DEP_FOR_BMI, X86_TUNE_ADJUST_UNROLL,
X86_TUNE_ONE_IF_CONV_INSN): Move to right spot in the file.

From-SVN: r253598

fold-vec-cmp-char.c: New.

[testsuite]

2017-10-10  Will Schmidt <will_schmidt@vnet.ibm.com>
* gcc.target/powerpc/fold-vec-cmp-char.c: New.
* gcc.target/powerpc/fold-vec-cmp-double.c: New.
* gcc.target/powerpc/fold-vec-cmp-float.c: New.
* gcc.target/powerpc/fold-vec-cmp-int.c: New.
* gcc.target/powerpc/fold-vec-cmp-longlong.c: New.
* gcc.target/powerpc/fold-vec-cmp-short.c: New.

From-SVN: r253597

Require wi::to_wide for trees

The wide_int routines allow things like:

   wi::add (t, 1)

to add 1 to an INTEGER_CST T in its native precision.  But we also have:

   wi::to_offset (t)      // Treat T as an offset_int
   wi::to_widest (t)      // Treat T as a widest_int

Recently we also gained:

   wi::to_wide (t, prec)  // Treat T as a wide_int in preccision PREC

This patch therefore requires:

   wi::to_wide (t)

when operating on INTEGER_CSTs in their native precision.  This is
just as efficient, and makes it clearer that a deliberate choice is
being made to treat the tree as a wide_int in its native precision.
This also removes the inconsistency that

a) INTEGER_CSTs in their native precision can be used without an accessor
   but must use wi:: functions instead of C++ operators

b) the other forms need an explicit accessor but the result can be used
   with C++ operators.

It also helps with SVE, where there's the additional possibility
that the tree could be a runtime value.

2017-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* wide-int.h (wide_int_ref_storage): Make host_dependent_precision
a template parameter.
(WIDE_INT_REF_FOR): Update accordingly.
* tree.h (wi::int_traits <const_tree>): Delete.
(wi::tree_to_widest_ref, wi::tree_to_offset_ref): New typedefs.
(wi::to_widest, wi::to_offset): Use them.  Expand commentary.
(wi::tree_to_wide_ref): New typedef.
(wi::to_wide): New function.
* calls.c (get_size_range): Use wi::to_wide when operating on
trees as wide_ints.
* cgraph.c (cgraph_node::create_thunk): Likewise.
* config/i386/i386.c (ix86_data_alignment): Likewise.
(ix86_local_alignment): Likewise.
* dbxout.c (stabstr_O): Likewise.
* dwarf2out.c (add_scalar_info, gen_enumeration_type_die): Likewise.
* expr.c (const_vector_from_tree): Likewise.
* fold-const-call.c (host_size_t_cst_p, fold_const_call_1): Likewise.
* fold-const.c (may_negate_without_overflow_p, negate_expr_p)
(fold_negate_expr_1, int_const_binop_1, const_binop)
(fold_convert_const_int_from_real, optimize_bit_field_compare)
(all_ones_mask_p, sign_bit_p, unextend, extract_muldiv_1)
(fold_div_compare, fold_single_bit_test, fold_plusminus_mult_expr)
(pointer_may_wrap_p, expr_not_equal_to, fold_binary_loc)
(fold_ternary_loc, multiple_of_p, fold_negate_const, fold_abs_const)
(fold_not_const, round_up_loc): Likewise.
* gimple-fold.c (gimple_fold_indirect_ref): Likewise.
* gimple-ssa-warn-alloca.c (alloca_call_type_by_arg): Likewise.
(alloca_call_type): Likewise.
* gimple.c (preprocess_case_label_vec_for_gimple): Likewise.
* godump.c (go_output_typedef): Likewise.
* graphite-sese-to-poly.c (tree_int_to_gmp): Likewise.
* internal-fn.c (get_min_precision): Likewise.
* ipa-cp.c (ipcp_store_vr_results): Likewise.
* ipa-polymorphic-call.c
(ipa_polymorphic_call_context::ipa_polymorphic_call_context): Likewise.
* ipa-prop.c (ipa_print_node_jump_functions_for_edge): Likewise.
(ipa_modify_call_arguments): Likewise.
* match.pd: Likewise.
* omp-low.c (scan_omp_1_op, lower_omp_ordered_clauses): Likewise.
* print-tree.c (print_node_brief, print_node): Likewise.
* stmt.c (expand_case): Likewise.
* stor-layout.c (layout_type): Likewise.
* tree-affine.c (tree_to_aff_combination): Likewise.
* tree-cfg.c (group_case_labels_stmt): Likewise.
* tree-data-ref.c (dr_analyze_indices): Likewise.
(prune_runtime_alias_test_list): Likewise.
* tree-dump.c (dequeue_and_dump): Likewise.
* tree-inline.c (remap_gimple_op_r, copy_tree_body_r): Likewise.
* tree-predcom.c (is_inv_store_elimination_chain): Likewise.
* tree-pretty-print.c (dump_generic_node): Likewise.
* tree-scalar-evolution.c (iv_can_overflow_p): Likewise.
(simple_iv_with_niters): Likewise.
* tree-ssa-address.c (addr_for_mem_ref): Likewise.
* tree-ssa-ccp.c (ccp_finalize, evaluate_stmt): Likewise.
* tree-ssa-loop-ivopts.c (constant_multiple_of): Likewise.
* tree-ssa-loop-niter.c (split_to_var_and_offset)
(refine_value_range_using_guard, number_of_iterations_ne_max)
(number_of_iterations_lt_to_ne, number_of_iterations_lt)
(get_cst_init_from_scev, record_nonwrapping_iv)
(scev_var_range_cant_overflow): Likewise.
* tree-ssa-phiopt.c (minmax_replacement): Likewise.
* tree-ssa-pre.c (compute_avail): Likewise.
* tree-ssa-sccvn.c (vn_reference_fold_indirect): Likewise.
(vn_reference_maybe_forwprop_address, valueized_wider_op): Likewise.
* tree-ssa-structalias.c (get_constraint_for_ptr_offset): Likewise.
* tree-ssa-uninit.c (is_pred_expr_subset_of): Likewise.
* tree-ssanames.c (set_nonzero_bits, get_nonzero_bits): Likewise.
* tree-switch-conversion.c (collect_switch_conv_info, array_value_type)
(dump_case_nodes, try_switch_expansion): Likewise.
* tree-vect-loop-manip.c (vect_gen_vector_loop_niters): Likewise.
(vect_do_peeling): Likewise.
* tree-vect-patterns.c (vect_recog_bool_pattern): Likewise.
* tree-vect-stmts.c (vectorizable_load): Likewise.
* tree-vrp.c (compare_values_warnv, vrp_int_const_binop): Likewise.
(zero_nonzero_bits_from_vr, ranges_from_anti_range): Likewise.
(extract_range_from_binary_expr_1, adjust_range_with_scev): Likewise.
(overflow_comparison_p_1, register_edge_assert_for_2): Likewise.
(is_masked_range_test, find_switch_asserts, maybe_set_nonzero_bits)
(vrp_evaluate_conditional_warnv_with_ops, intersect_ranges): Likewise.
(range_fits_type_p, two_valued_val_range_p, vrp_finalize): Likewise.
(evrp_dom_walker::before_dom_children): Likewise.
* tree.c (cache_integer_cst, real_value_from_int_cst, integer_zerop)
(integer_all_onesp, integer_pow2p, integer_nonzerop, tree_log2)
(tree_floor_log2, tree_ctz, mem_ref_offset, tree_int_cst_sign_bit)
(tree_int_cst_sgn, get_unwidened, int_fits_type_p): Likewise.
(get_type_static_bounds, num_ending_zeros, drop_tree_overflow)
(get_range_pos_neg): Likewise.
* ubsan.c (ubsan_expand_ptr_ifn): Likewise.
* config/darwin.c (darwin_mergeable_constant_section): Likewise.
* config/aarch64/aarch64.c (aapcs_vfp_sub_candidate): Likewise.
* config/arm/arm.c (aapcs_vfp_sub_candidate): Likewise.
* config/avr/avr.c (avr_fold_builtin): Likewise.
* config/bfin/bfin.c (bfin_local_alignment): Likewise.
* config/msp430/msp430.c (msp430_attr): Likewise.
* config/nds32/nds32.c (nds32_insert_attributes): Likewise.
* config/powerpcspe/powerpcspe-c.c
(altivec_resolve_overloaded_builtin): Likewise.
* config/powerpcspe/powerpcspe.c (rs6000_aggregate_candidate)
(rs6000_expand_ternop_builtin): Likewise.
* config/rs6000/rs6000-c.c
(altivec_resolve_overloaded_builtin): Likewise.
* config/rs6000/rs6000.c (rs6000_aggregate_candidate): Likewise.
(rs6000_expand_ternop_builtin): Likewise.
* config/s390/s390.c (s390_handle_hotpatch_attribute): Likewise.

gcc/ada/
* gcc-interface/decl.c (annotate_value): Use wi::to_wide when
operating on trees as wide_ints.

gcc/c/
* c-parser.c (c_parser_cilk_clause_vectorlength): Use wi::to_wide when
operating on trees as wide_ints.
* c-typeck.c (build_c_cast, c_finish_omp_clauses): Likewise.
(c_tree_equal): Likewise.

gcc/c-family/
* c-ada-spec.c (dump_generic_ada_node): Use wi::to_wide when
operating on trees as wide_ints.
* c-common.c (pointer_int_sum): Likewise.
* c-pretty-print.c (pp_c_integer_constant): Likewise.
* c-warn.c (match_case_to_enum_1): Likewise.
(c_do_switch_warnings): Likewise.
(maybe_warn_shift_overflow): Likewise.

gcc/cp/
* cvt.c (ignore_overflows): Use wi::to_wide when
operating on trees as wide_ints.
* decl.c (check_array_designated_initializer): Likewise.
* mangle.c (write_integer_cst): Likewise.
* semantics.c (cp_finish_omp_clause_depend_sink): Likewise.

gcc/fortran/
* target-memory.c (gfc_interpret_logical): Use wi::to_wide when
operating on trees as wide_ints.
* trans-const.c (gfc_conv_tree_to_mpz): Likewise.
* trans-expr.c (gfc_conv_cst_int_power): Likewise.
* trans-intrinsic.c (trans_this_image): Likewise.
(gfc_conv_intrinsic_bound): Likewise.
(conv_intrinsic_cobound): Likewise.

gcc/lto/
* lto.c (compare_tree_sccs_1): Use wi::to_wide when
operating on trees as wide_ints.

gcc/objc/
* objc-act.c (objc_decl_method_attributes): Use wi::to_wide when
operating on trees as wide_ints.

From-SVN: r253595

re PR libfortran/82233 (execute_command_line causes program to stop when command fails (or does not exist))

2017-10-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR libfortran/82233
* intrinsics/execute_command_line.c (execute_command_line):
No call to runtime_error if cmdstat is present.

2017-10-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR libfortran/82233
* gfortran.dg/execute_command_line_3.f90: New test.

From-SVN: r253593

|-------* gcc.target/powerpc/fold-vec-splat-16.c: New |-------* gcc.target/powerpc/fold-vec-splat-32.c: New.

2017-10-10  Will Schmidt  <will_schmidt@vnet.ibm.com>

[testsuite]
|-------* gcc.target/powerpc/fold-vec-splat-16.c: New
|-------* gcc.target/powerpc/fold-vec-splat-32.c: New.
|-------* gcc.target/powerpc/fold-vec-splat-8.c: New.

From-SVN: r253591

fold-vec-splats-char.c: New.

[testsuite]

2017-10-10  Will Schmidt <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-splats-char.c: New.
* gcc.target/powerpc/fold-vec-splats-floatdouble.c: New.
* gcc.target/powerpc/fold-vec-splats-int.c: New.
* gcc.target/powerpc/fold-vec-splats-longlong.c: New.
* gcc.target/powerpc/fold-vec-splats-short.c: New.

From-SVN: r253590

re PR c/82437 (false-positive -Wtautological-compare warning with -std=gnu89)

PR c/82437
* c-warn.c (warn_tautological_bitwise_comparison): Use wi::to_wide
instead of wide_int::from.

* c-c++-common/Wtautological-compare-7.c: New test.

From-SVN: r253589

[C++ PATCH] set_global_binding tweak

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00592.html
* name-lookup.c (set_global_binding): Don't deal with STAT_HACK.

From-SVN: r253587

tree-vect-loop-manip.c (rename_variables_in_bb): Rename PHI nodes when copying loop nest with only one inner loop.

* tree-vect-loop-manip.c (rename_variables_in_bb): Rename PHI nodes
when copying loop nest with only one inner loop.

gcc/testsuite
* gcc.dg/tree-ssa/ldist-34.c: New test.

From-SVN: r253586

tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Avoid compacting blocks if SCEV is active.

2017-10-10  Richard Biener  <rguenther@suse.de>

* tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Avoid compacting
blocks if SCEV is active.
* tree-scalar-evolution.c (analyze_scalar_evolution_1): Remove
dead code.
(analyze_scalar_evolution): Handle cached evolutions the obvious way.
(scev_initialize): Assert we are not yet initialized.

From-SVN: r253585

class_wide4.adb: Fix a typo.

gcc/testsuite/

* gnat.dg/class_wide4.adb: Fix a typo.

Also add ChangeLog entries missing from previous commits.

From-SVN: r253584

update_version_svn: Ignore the GCC 5 branch.

* update_version_svn: Ignore the GCC 5 branch.
* crontab: Remove entry for the GCC 5 branch.

From-SVN: r253583

Update comment referring to status of LWG issue 111

* include/bits/streambuf_iterator.h (istreambuf_iterator::equal):
Update comment about NAD issue.

From-SVN: r253582

PR libstdc++/82417 do not include C99 <complex.h> in strict modes

As an extension the C++ version of <complex.h> includes the C version,
but that defines macros with non-reserved names that should not be
defined in ISO C++. Only include the C header for non-strict modes, or
for pre-C++11 (because C++98 doesn't mention <complex.h> at all).

PR libstdc++/59087
PR libstdc++/82417
* include/c_compatibility/complex.h [!C++98 && __STRICT_ANSI__]: Do
not include C library's <complex.h>.
* testsuite/26_numerics/complex/c99.cc: Depend on __STRICT_ANSI__.
* testsuite/26_numerics/headers/complex.h/std_c++11.h: New test.
* testsuite/26_numerics/headers/complex.h/std_gnu++11.h: New test.
* testsuite/26_numerics/headers/complex.h/std_c++98.h: New test.

From-SVN: r253581

tree-loop-distribution.c (generate_loops_for_partition): Remove inner loop's exit stmt by making it always exit the loop...

* tree-loop-distribution.c (generate_loops_for_partition): Remove
inner loop's exit stmt by making it always exit the loop, otherwise
we would generate an infinite empty loop.

gcc/testsuite
* gcc.dg/tree-ssa/ldist-27.c: New test.

From-SVN: r253580

tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Skip renaming variables in new preheader if it's deleted.

* tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Skip
renaming variables in new preheader if it's deleted.

From-SVN: r253579

tree-loop-distribution.c (struct partition): Remove unused field loops of the structure.

* tree-loop-distribution.c (struct partition): Remove unused field
loops of the structure.
(partition_alloc, partition_free): Ditto.
(build_rdg_partition_for_vertex): Ditto.

From-SVN: r253578

targhooks.c (default_stack_clash_protection_final_dynamic_probe): Fix return type to match prototype and documentation.

* targhooks.c (default_stack_clash_protection_final_dynamic_probe): Fix
return type to match prototype and documentation.

From-SVN: r253575

Daily bump.

From-SVN: r253574

rs6000: Move processor_costs to header

This moves the processor_costs structure declaration to the rs6000.h
header file, so that things in other files can use it (not just things
in rs6000.c).

* config/rs6000/rs6000.c (processor_costs): Move to ...
* config/rs6000/rs6000.h: ... here.
(rs6000_cost): Declare.

From-SVN: r253570

except.c (setjmp_fn): New global variable.

* except.c (setjmp_fn): New global variable.
(init_eh): Initialize it if DONT_USE_BUILTIN_SETJMP is defined.
(sjlj_emit_function_enter): Call it instead of BUILTIN_SETJMP if
DONT_USE_BUILTIN_SETJMP is defined.

From-SVN: r253569

[multiple changes]

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_unit.adb (Find_Enclosing_Scope): Do not treat a block statement
as a scoping construct when it is byproduct of exception handling.

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* sinfo.ads: Update table Is_Syntactic_Field to reflect the nature of
semantic field Target of node N_Call_Marker.

2017-10-09  Ed Schonberg  <schonberg@adacore.com>

* sem_res.adb (Resolve_Allocator): Reject properly an allocator that
attempts to copy a limited value, when the allocator is the expression
in an expression function.

2017-10-09  Joel Brobecker  <brobecker@adacore.com>

* doc/share/conf.py: Tell the style checker that this is a Python
fragment, and therefore that pyflakes should not be run to validate
this file.

2017-10-09  Eric Botcazou  <ebotcazou@adacore.com>

* einfo.ads (Is_Boolean_Type): Add pragma Inline.
(Is_Entity_Name): Likewise.
(Is_String_Type): Likewise.
* sem_type.adb (Full_View_Covers): Do not test Is_Private_Type here
and remove useless comparisons on the base types.
(Covers): Use simple tests for Standard_Void_Type.  Move up cheap tests
on T2.  Always test Is_Private_Type before Full_View_Covers.

2017-10-09  Bob Duff  <duff@adacore.com>

* exp_ch4.adb: Minor refactoring.

From-SVN: r253568

[multiple changes]

2017-10-09  Javier Miranda  <miranda@adacore.com>

* sem_ch3.adb (Replace_Components): Browse the list of discriminants,
not components.

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_elab.adb (Static_Elaboration_Checks): Elaboration requirements
are verified only in the static model.

2017-10-09  Ed Schonberg  <schonberg@adacore.com>

* sem_ch5.adb (Analyze_Iterator_Specification,
Check_Reverse_Iteration): Check that the domain of iteration supports
reverse iteration when it is a formal container.  This requires the
presence of a Previous primitive in the Iterable aspect.
* sem_ch13.adb (Resolve_Iterable_Operation): Verify legality of
primitives Last and Previous to support reverse iteration over formal
containers.
(Validate_Iterable_Aspect): Add check for reverse iteration operations.
* exp_ch5.adb (Build_Formal_Container_Iteration): Add proper expansion
for reverse iteration using primitives Last and Previous in generated
loop.

2017-10-09  Ed Schonberg  <schonberg@adacore.com>

* sem_util.adb (Subprogram_Name): If this is a child unit, use the name
of the Defining_Program_Unit_Name, which is an identifier, in order to
construct the string for the fully qualified name.

From-SVN: r253567

[multiple changes]

2017-10-09  Justin Squirek  <squirek@adacore.com>

* sem_ch3.adb: Rename Uses_Unseen_Priv into
Contains_Lib_Incomplete_Type.

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_aggr.adb, sem_spark.adb, adabkend.adb, exp_ch5.adb, frontend.adb,
sem_ch12.adb, fmap.adb, exp_ch6.adb, exp_spark.adb, lib-load.adb,
exp_ch9.adb, osint.adb, exp_disp.adb, sem_ch8.adb, sem_ch8.ads,
prepcomp.adb, gnat1drv.adb, atree.adb, sinput-l.adb, targparm.adb,
sem_ch10.adb, par-ch8.adb: Minor reformatting.

From-SVN: r253566

[multiple changes]

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_elab.adb (Is_Suitable_Access): This scenario is now only relevant
in the static model.
(Is_Suitable_Variable_Assignment): This scenario is now only relevant
in the static model.
(Is_Suitable_Variable_Reference): This scenario is now only relevant in
the static model.

2017-10-09  Ed Schonberg  <schonberg@adacore.com>

* sem_ch3.adb (Analyze_Declarations): In ASIS mode, resolve aspect
expressions when the enclosing scope is a subprogram body and the next
declaration is a body that freezes entities previously declared in the
scope.

2017-10-09  Justin Squirek  <squirek@adacore.com>

* sem_ch8.adb (Analyze_Use_Package): Remove checking of mixture between
ghost packages and living packages in use clauses.
(Use_One_Type, Note_Redundant_Use): Correct warning messages

2017-10-09  Justin Squirek  <squirek@adacore.com>

* osint.ads: Document new parameter FD for Read_Source_File.

From-SVN: r253564

[multiple changes]

2017-10-09  Ed Schonberg  <schonberg@adacore.com>

* exp_util.adb (Make_Predicate_Call): If the type of the expression to
which the predicate check applies is tagged, convert the expression to
that type. This is in most cases a no-op, but is relevant if the
expression is clas-swide, because the predicate function being invoked
is not a primitive of the type and cannot take a class-wide actual.

2017-10-09  Gary Dismukes  <dismukes@adacore.com>

* exp_disp.adb: Minor reformatting.

2017-10-09  Arnaud Charlet  <charlet@adacore.com>

* sem_warn.adb (Warn_On_Unreferenced_Entity): Fix typo.

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* sem_elab.adb (Install_ABE_Check): Do not generate an ABE check for
GNATprove.
(Install_ABE_Failure): Do not generate an ABE failure for GNATprove.

2017-10-09  Bob Duff  <duff@adacore.com>

* exp_ch6.adb: (Make_Build_In_Place_Call_In_Object_Declaration): Return
immediately if the call has already been processed (by a previous call
to Make_Build_In_Place_Call_In_Anonymous_Context).
* sem_elab.adb: Minor typo fixes.

2017-10-09  Ed Schonberg  <schonberg@adacore.com>

* sem_ch13.adb (Replace_Type_Ref): In the expression for a dynamic
predicate, do not replace an identifier that matches the type if the
identifier is a selector in a selected component, because this
indicates a reference to some homograph of the type itself, and  not to
the current occurence in the predicate.

2017-10-09  Eric Botcazou  <ebotcazou@adacore.com>

* repinfo.adb (List_Record_Layout): Tweak formatting.
(Write_Val): Remove superfluous spaces in back-end layout mode.

2017-10-09  Piotr Trojanek  <trojanek@adacore.com>

* sem_res.adb (Property_Error): Remove.
(Resolve_Actuals): check for SPARK RM 7.1.3(10) rewritten to match the
current wording of the rule.

2017-10-09  Justin Squirek  <squirek@adacore.com>

* sem_ch3.adb (Analyze_Declarations): Add check for ghost packages
before analyzing a given scope due to an expression function.
(Uses_Unseen_Lib_Unit_Priv): Rename to Uses_Unseen_Priv.

From-SVN: r253563

Add targetm.insn_cost hook

This adds a new hook that the insn_cost function uses if a target has
implemented it (it uses the old pattern_cost nee insn_rtx_cost if not).

* target.def (insn_cost): New hook.
* doc/tm.texi.in (TARGET_INSN_COST): New hook.
* doc/tm.texi: Regenerate.
* rtlanal.c (insn_cost): Use the new hook.

From-SVN: r253562

combine: Use insn_cost instead of pattern_cost everywhere

* combine.c (combine_validate_cost): Compute the new insn_cost,
not just pattern_cost.
(try_combine): Adjust comment.

From-SVN: r253561

Replace insn_rtx_cost with insn_cost and pattern_cost

This replaces insn_rtx_cost with insn_cost if an insn is readily
available, and with pattern_cost otherwise.

* cfgrtl.c (rtl_account_profile_record): Replace insn_rtx_cost with
insn_cost.
* combine.c (uid_insn_cost): Adjust comment.
(combine_validate_cost): Adjust comment.  Use pattern_cost instead
of insn_rtx_cost
(combine_instructions): Use insn_cost instead of insn_rtx_cost.
* dse.c (find_shift_sequence): Ditto.
* ifcvt.c (cheap_bb_rtx_cost_p): Ditto.
(bb_valid_for_noce_process_p): Use pattern_cost.
* rtl.h (insn_rtx_cost): Delete.
(pattern_cost): New prototype.
(insn_cost): New prototype.
* rtlanal.c (insn_rtx_cost): Rename to...
(pattern_cost): ... this.
(insn_cost): New.

From-SVN: r253560

[multiple changes]

2017-10-09  Bob Duff  <duff@adacore.com>

* exp_ch6.adb (Make_Build_In_Place_Call_In_Object_Declaration): Use
Defining_Identifier (Obj_Decl) in two places, because it might have
changed.
* exp_ch6.adb (Make_Build_In_Place_Call_In_Allocator): Deal with cases
involving 'Input on (not visibly) derived types.

2017-10-09  Hristian Kirtchev  <kirtchev@adacore.com>

* atree.adb: Add new soft link Rewriting_Proc.
(Rewrite): Invoke the subprogram attached to the rewriting soft link.
(Set_Rewriting_Proc): New routine.
* attree.ads: Add new access-to-subprogram type Rewrite_Proc.
(Set_Rewriting_Proc): New routine.
* checks.adb (Install_Primitive_Elaboration_Check): Use 'E' character
for *E*laboration flag to maintain consistency with other elaboration
flag generating subprograms.
* debug.adb: Document the new usage of flag -gnatdL.
* einfo.adb: Node19 is now used as Receiving_Entry.  Node39 is now used
as Protected_Subprogram.  Flag148 is now used as
Is_Elaboration_Checks_OK_Id.  Flag302 is now used as
Is_Initial_Condition_Procedure.
(Is_Elaboration_Checks_OK_Id): New routine.
(Is_Initial_Condition_Procedure): New routine.
(Protected_Subprogram): New routine.
(Receiving_Entry): New routine.
(SPARK_Pragma): Update assertion.
(SPARK_Pragma_Inherited): Update assertion.
(Suppress_Elaboration_Warnings): Removed.
(Set_Is_Elaboration_Checks_OK_Id): New routine.
(Set_Is_Initial_Condition_Procedure): New routine.
(Set_Protected_Subprogram): New routine.
(Set_Receiving_Entry): New routine.
(Set_SPARK_Pragma): Update assertion.
(Set_SPARK_Pragma_Inherited): Update assertion.
(Write_Entity_Flags): Update the output for Flag148 and Flag302.
(Write_Field19_Name): Add output for Receiving_Entry.
(Write_Field39_Name): Add output for Protected_Subprogram.
(Write_Field40_Name): Update the output for SPARK_Pragma.
* einfo.ads: New attributes Is_Elaboration_Checks_OK_Id,
Is_Initial_Condition_Procedure, Protected_Subprogram, Receiving_Entry.
Remove attribute Suppress_Elaboration_Warnings.  Update the stricture
of various entities.
(Is_Elaboration_Checks_OK_Id): New routine along with pragma Inline.
(Is_Initial_Condition_Procedure): New routine along with pragma Inline.
(Protected_Subprogram): New routine along with pragma Inline.
(Receiving_Entry): New routine along with pragma Inline.
(Suppress_Elaboration_Warnings): Removed.
(Set_Is_Elaboration_Checks_OK_Id): New routine along with pragma
Inline.
(Set_Is_Initial_Condition_Procedure): New routine along with pragma
Inline.
(Set_Protected_Subprogram): New routine along with pragma Inline.
(Set_Receiving_Entry): New routine along with pragma Inline.
(Set_Suppress_Elaboration_Warnings): Removed.
* exp_ch3.adb (Build_Init_Procedure): Use name _Finalizer to maintain
consistency with other finalizer generating subprograms.
(Default_Initialize_Object): Mark the block which wraps the call to
finalize as being part of initialization.
* exp_ch7.adb (Expand_N_Package_Declaration): Directly expand pragma
Initial_Condition.
(Expand_N_Package_Body): Directly expand pragma Initial_Condition.
(Next_Suitable_Statement): Update the comment on usage. Skip over call
markers generated by the ABE mechanism.
* exp_ch9.adb (Activation_Call_Loc): New routine.
(Add_Accept): Link the accept procedure to the original entry.
(Build_Protected_Sub_Specification): Link the protected or unprotected
version to the original subprogram.
(Build_Task_Activation_Call): Code cleanup. Use a source location which
is very close to the "begin" or "end" keywords when generating the
activation call.
* exp_prag.adb (Expand_Pragma_Initial_Condition): Reimplemented.
* exp_spark.adb (Expand_SPARK): Use Expand_SPARK_N_Loop_Statement to
process loops.
(Expand_SPARK_N_Loop_Statement): New routine.
(Expand_SPARK_N_Object_Declaration): Code cleanup. Partially insert the
call to the Default_Initial_Condition procedure.
(Expand_SPARK_Op_Ne): Renamed to Expand_SPARK_N_Op_Ne.
* exp_util.adb (Build_DIC_Procedure_Body): Capture the SPARK_Mode in
effect.
(Build_DIC_Procedure_Declaration): Capture the SPARK_Mode in effect.
(Insert_Actions): Add processing for N_Call_Marker.
(Kill_Dead_Code): Explicitly kill an elaboration scenario.
* exp_util.ads (Make_Invariant_Call): Update the comment on usage.
* frontend.adb: Initialize Sem_Elab. Process all saved top level
elaboration scenarios for ABE issues.
* gcc-interface/trans.c (gnat_to_gnu): Add processing for N_Call_Marker
nodes.
* lib.adb (Earlier_In_Extended_Unit): New variant.
* sem.adb (Analyze): Ignore N_Call_Marker nodes.
(Preanalysis_Active): New routine.
* sem.ads (Preanalysis_Active): New routine.
* sem_attr.adb (Analyze_Access_Attribute): Save certain
elaboration-related attributes. Save the scenario for ABE processing.
* sem_ch3.adb (Analyze_Object_Declaration): Save the SPARK mode in
effect. Save certain elaboration-related attributes.
* sem_ch5.adb (Analyze_Assignment): Save certain elaboration-related
attributes. Save the scenario for ABE processing.
* sem_ch6.adb (Analyze_Abstract_Subprogram_Declaration): Save the SPARK
mode in effect. Save certain elaboration-related attributes.
(Analyze_Subprogram_Body_Helper): Skip N_Call_Marker nodes when
locating the first real statement.
(Analyze_Subprogram_Declaration): Save the SPARK mode in effect. Save
certain elaboration-related attributes.
* sem_ch7.adb (Analyze_Package_Declaration): Do not suppress
elaboration warnings.
* sem_ch8.adb (Attribute_Renaming): Mark a subprogram body which was
generated for purposes of wrapping an attribute used as a generic
actual.
(Find_Direct_Name): Save certain elaboration-related attributes. Save
the scenario for ABE processing.
(Find_Expanded_Name): Save certain elaboration-related attributes. Save
the scenario for ABE processing.
* sem_ch9.adb (Analyze_Entry_Declaration): Save certain
elaboration-related attributes.
(Analyze_Requeue): Save certain elaboration-related attributes. Save
the scenario for ABE processing.
(Analyze_Single_Task_Declaration): Save certain elaboration-related
attributes.
(Analyze_Task_Type_Declaration): Save certain elaboration-related
attributes.
* sem_ch12.adb (Analyze_Generic_Package_Declaration): Save certain
elaboration-related attributes.
(Analyze_Generic_Subprogram_Declaration): Save the SPARK mode in
effect. Save certain elaboration-related attributes.
(Analyze_Package_Instantiation): Save certain elaboration-related
attributes.  Save the scenario for ABE processing. Create completing
bodies in case the instantiation results in a guaranteed ABE.
(Analyze_Subprogram_Instantiation): Save certain elaboration-related
attributes Save the scenario for ABE processing. Create a completing
body in case the instantiation results in a guaranteed ABE.
(Provide_Completing_Bodies): New routine.
* sem_elab.ads: Brand new implementation.
* sem_prag.adb (Analyze_Pragma, cases Elaborate, Elaborate_All,
Elaborate_Body): Do not suppress elaboration warnings.
* sem_res.adb (Make_Call_Into_Operator): Set the parent field of the
operator.
(Resolve_Call): Save certain elaboration-related attributes. Save the
scenario for ABE processing.
(Resolve_Entity_Name): Do not perform any ABE processing here.
(Resolve_Entry_Call): Inherit certain attributes from the original call.
* sem_util.adb (Begin_Keyword_Location): New routine.
(Defining_Entity): Update the parameter profile. Add processing for
concurrent subunits that are rewritten as null statements.
(End_Keyword_Location): New routine.
(Find_Enclosing_Scope): New routine.
(In_Instance_Visible_Part): Code cleanup.
(In_Subtree): Update the parameter profile. Add new version.
(Is_Preelaborable_Aggregate): New routine.
(Is_Preelaborable_Construct): New routine.
(Mark_Elaboration_Attributes): New routine.
(Scope_Within): Update the parameter profile.
(Scope_Within_Or_Same): Update the parameter profile.
* sem_util.ads (Begin_Keyword_Location): New routine.
(Defining_Entity): Update the parameter profile and the comment on
usage.
(End_Keyword_Location): New routine.
(Find_Enclosing_Scope): New routine.
(In_Instance_Visible_Part): Update the parameter profile.
(In_Subtree): Update the parameter profile. Add new version.
(Is_Preelaborable_Aggregate): New routine.
(Is_Preelaborable_Construct): New routine.
(Mark_Elaboration_Attributes): New routine.
(Scope_Within): Update the parameter profile and the comment on usage.
(Scope_Within_Or_Same): Update the parameter profile and the comment on
usage.
* sem_warn.adb (Check_Infinite_Loop_Warning): Use Has_Condition_Actions
to determine whether a loop has meaningful condition actions.
(Has_Condition_Actions): New routine.
* sinfo.adb (ABE_Is_Certain): Removed.
(Is_Declaration_Level_Node): New routine.
(Is_Dispatching_Call): New routine.
(Is_Elaboration_Checks_OK_Node): New routine.
(Is_Initialization_Block): New routine.
(Is_Known_Guaranteed_ABE): New routine.
(Is_Recorded_Scenario): New routine.
(Is_Source_Call): New routine.
(Is_SPARK_Mode_On_Node): New routine.
(No_Elaboration_Check): Removed.
(Target): New routine.
(Was_Attribute_Reference): New routine.
(Set_ABE_Is_Certain): Removed.
(Set_Is_Declaration_Level_Node): New routine.
(Set_Is_Dispatching_Call): New routine.
(Set_Is_Elaboration_Checks_OK_Node): New routine.
(Set_Is_Initialization_Block): New routine.
(Set_Is_Known_Guaranteed_ABE): New routine.
(Set_Is_Recorded_Scenario): New routine.
(Set_Is_Source_Call): New routine.
(Set_Is_SPARK_Mode_On_Node): New routine.
(Set_No_Elaboration_Check): Removed.
(Set_Target): New routine.
(Set_Was_Attribute_Reference): New routine.
* sinfo.ads: Remove attribute ABE_Is_Certain.  Attribute
Do_Discriminant_Check now utilizes Flag3.  Attribute
No_Side_Effect_Removal now utilizes Flag17.  Add new node
N_Call_Marker.  Update the structure of various nodes.
(ABE_Is_Certain): Removed along with pragma Inline.
(Is_Declaration_Level_Node): New routine along with pragma Inline.
(Is_Dispatching_Call): New routine along with pragma Inline.
(Is_Elaboration_Checks_OK_Node): New routine along with pragma Inline.
(Is_Initialization_Block): New routine along with pragma Inline.
(Is_Known_Guaranteed_ABE): New routine along with pragma Inline.
(Is_Recorded_Scenario): New routine along with pragma Inline.
(Is_Source_Call): New routine along with pragma Inline.
(Is_SPARK_Mode_On_Node): New routine along with pragma Inline.
(No_Elaboration_Check): Removed along with pragma Inline.
(Target): New routine along with pragma Inline.
(Was_Attribute_Reference): New routine along with pragma Inline.
(Set_ABE_Is_Certain): Removed along with pragma Inline.
(Set_Is_Declaration_Level_Node): New routine along with pragma Inline.
(Set_Is_Dispatching_Call): New routine along with pragma Inline.
(Set_Is_Elaboration_Checks_OK_Node): New routine along with pragma
Inline.
(Set_Is_Initialization_Block): New routine along with pragma Inline.
(Set_Is_Known_Guaranteed_ABE): New routine along with pragma Inline.
(Set_Is_Recorded_Scenario): New routine along with pragma Inline.
(Set_Is_Source_Call): New routine along with pragma Inline.
(Set_Is_SPARK_Mode_On_Node): New routine along with pragma Inline.
(Set_No_Elaboration_Check): Removed along with pragma Inline.
(Set_Target): New routine along with pragma Inline.
(Set_Was_Attribute_Reference): New routine along with pragma Inline.
* sprint.adb (Sprint_Node_Actual): Add an entry for N_Call_Marker.

From-SVN: r253559

i386.md (*jcc_2): Remove insn pattern.

* config/i386/i386.md (*jcc_2): Remove insn pattern.
(*jcc<mode>_0_r_i387): Ditto.
(*jccxf_r_i387): Ditto.
(*jcc<mode>_r_i387): Ditto.
(*jccu<mode>_r_i387): Ditto.
(*jcc<X87MODEF:mode>_<SWI24:mode>_r_i387): Ditto.
(*jcc): Rename from *jcc_1.

From-SVN: r253558

exp_ch7.adb (Create_Finalizer): Suppress checks within the finalizer.

2017-10-09  Bob Duff  <duff@adacore.com>

* exp_ch7.adb (Create_Finalizer): Suppress checks within the finalizer.

2017-10-09  Bob Duff  <duff@adacore.com>

* freeze.ads: Minor comment fixed.

From-SVN: r253557

<forgot to do svn add on the amo.h file>

[gcc]
2017-10-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/amo.h: New include file to provide ISA 3.0 atomic
memory operation instruction support.
* config.gcc (powerpc*-*-*): Include amo.h as an extra header.
(rs6000-ibm-aix[789]*): Likewise.
* doc/extend.texi (PowerPC Atomic Memory Operation Functions):
Document new functions.

[gcc/testsuite]
2017-10-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

* gcc.target/powerpc/amo1.c: New test.
* gcc.target/powerpc/amo2.c: Likewise.

From-SVN: r253556