* params.opt (max-inline-insns-single-O2): Set to 70 (instead of 30).

From-SVN: r278221

Support for value ranges in IPA predicates

        * ipa-cp.c (ipa_vr_operation_and_type_effects): Move up in file.
(ipa_value_range_from_jfunc): New function.
* ipa-fnsummary.c (evaluate_conditions_for_known_args): Add
known_value_ranges parameter; use it to evalulate conditions.
(evaluate_properties_for_edge): Compute known value ranges.
(ipa_fn_summary_t::duplicate): Update use of
evaluate_conditions_for_known_args.
(estimate_ipcp_clone_size_and_time): Likewise.
(ipa_merge_fn_summary_after_inlining): Likewise.
* ipa-prop.h (ipa_value_range_from_jfunc): Declare.

        * gcc.dg/ipa/inline-9.c: New testcase.

From-SVN: r278220

Remove usage of CIF_MAX_INLINE_INSNS_SINGLE_O2_LIMIT.

2019-11-14  Martin Liska  <mliska@suse.cz>

* ipa-inline.c (want_inline_small_function_p): Use
CIF_MAX_INLINE_INSNS_AUTO_LIMIT instead
of CIF_MAX_INLINE_INSNS_SINGLE_O2_LIMIT.

From-SVN: r278219

Add Optimization keyword for param_max_inline_insns_auto param.

2019-11-14  Martin Liska  <mliska@suse.cz>

* ipa-cp.c (devirtualization_time_bonus): Use opt_for_fn
of a callee to get value of the param.
* ipa-inline.c (inline_insns_auto): Use proper
opt_for_fn.
* opts.c (maybe_default_option): Do not overwrite param
value if optimization level does not match.  Note that
params usually have default value set via Init() keyword.
* params.opt: Remove -param=max-inline-insns-auto-O2.
* cif-code.def (MAX_INLINE_INSNS_AUTO_O2_LIMIT): Remove.
* doc/invoke.texi: Remove documentation of
max-inline-insns-auto-O2.
2019-11-14  Martin Liska  <mliska@suse.cz>

* c-c++-common/asan/memcmp-1.c: Update expected backtrace.

From-SVN: r278218

Remove dead code in switch conv pass.

2019-11-14  Martin Liska  <mliska@suse.cz>

* tree-switch-conversion.c (switch_conversion::switch_conversion):
Do not initialize m_other_count.
(switch_conversion::collect): Do not count m_default_count and
m_other_count as we use frequencies for edges.
* tree-switch-conversion.h: Remove m_default_count and m_other_count.

From-SVN: r278217

Remove wrong lto-dump: lto1 makefile dependency.

2019-11-14  Martin Liska  <mliska@suse.cz>

* Make-lang.in: Remove wrong dependency
of LTO_DUMP_EXE on LTO_EXE.

From-SVN: r278212

Document -fallocation-dce.

2019-11-14  Martin Liska  <mliska@suse.cz>

PR other/92329
* doc/invoke.texi: Document -fallocation-dce.

From-SVN: r278211

Enable VPOPCNTDQ for icelake-{client,server} and tigerlake.

2019-11-14  Martin Liska  <mliska@suse.cz>

PR target/92389
* config/i386/i386.h: Add PTA_AVX512VPOPCNTDQ to
PTA_ICELAKE_CLIENT which is later interited by
PTA_ICELAKE_SERVER and PTA_TIGERLAKE.

From-SVN: r278210

Update statistics about needed symbols in IPA ICF.

2019-11-14  Martin Liska  <mliska@suse.cz>

* ipa-icf.c (sem_item_optimizer::execute): Save
loaded_symbols.
(sem_item_optimizer::parse_nonsingleton_classes):
Return number of loaded symbols.
(sem_item_optimizer::merge_classes): Print
statistics about totally needed symbols.
* ipa-icf.h (parse_nonsingleton_classes): Change return
type.
(merge_classes): Add one argument.

From-SVN: r278209

Handle FIELD_DECL in IPA ICF.

2019-11-14  Martin Liska  <mliska@suse.cz>

* ipa-icf-gimple.c (func_checker::hash_operand): Improve
func_checker::hash_operand by handling of FIELD_DECLs.

From-SVN: r278208

Use func_checker::hash_operand for hashing of GIMPLE operands.

2019-11-14  Martin Liska  <mliska@suse.cz>

* ipa-icf-gimple.h (func_checker::func_checker): Add
default constructor.
* ipa-icf.c (sem_function::init): Make operand_equal_p
and hash_operand public.
(sem_item::add_expr): Remove.
(sem_item::add_type): Remove.
(sem_function::hash_stmt): Use m_checker for hashing
of GIMPLE statements.
(sem_function::parse): Init with checker.
(sem_variable::parse): Pass NULL as checker.
(sem_item_optimizer::parse_funcs_and_vars):
Pass checker to ::parse function.
(sem_item_optimizer::parse_nonsingleton_classes): Likewise.
(sem_variable::parse): New function.
(sem_variable::get_hash): Only return computed hash value.
(sem_variable::init): Initialize hash of a variable.
* ipa-icf.h: Remove add_expr, add_type and add func_checker
to couple of functions as a new argument.

From-SVN: r278207

Update dump message in IPA ICF.

2019-11-14  Martin Liska  <mliska@suse.cz>

* ipa-icf-gimple.c (func_checker::compare_gimple_call): Update
bail out reason.
(func_checker::compare_gimple_assign): Likewise.

From-SVN: r278206

i386-options.c (ix86_omp_device_kind_arch_isa): Don't change sse4.2 to sse4_2 and sse4.1 to sse4.1.

* config/i386/i386-options.c (ix86_omp_device_kind_arch_isa): Don't
change sse4.2 to sse4_2 and sse4.1 to sse4.1.
* config/i386/t-omp-device (omp-device-properties-i386): Likewise.

* c-c++-common/gomp/declare-variant-11.c: Add "sse4.2" and "sse4.1"
test.

From-SVN: r278205

c-parser.c (c_parser_omp_context_selector): Don't require score argument to fit into shwi, just to be INTEGER_CST.

* c-parser.c (c_parser_omp_context_selector): Don't require score
argument to fit into shwi, just to be INTEGER_CST.  Diagnose
negative score.

* parser.c (cp_parser_omp_context_selector): Don't require score
argument to fit into shwi, just to be INTEGER_CST.  Diagnose
negative score.
* pt.c (tsubst_attribute): Likewise.

* c-c++-common/gomp/declare-variant-2.c: Add test for non-integral
score and for negative score.
* c-c++-common/gomp/declare-variant-3.c: Add test for zero score.
* g++.dg/gomp/declare-variant-8.C: Add test for negative and zero
scores.

From-SVN: r278204

c-omp.c (c_omp_check_context_selector): Add nvidia to the list of valid vendors.

* c-omp.c (c_omp_check_context_selector): Add nvidia to the list of
valid vendors.

* c-c++-common/gomp/declare-variant-3.c: Add testcase for vendor nvidia.

From-SVN: r278203

omp-general.c (omp_context_name_list_prop): New function.

* omp-general.c (omp_context_name_list_prop): New function.
(omp_context_selector_matches): Use it.  Return 0 if it returns
NULL.
(omp_context_selector_props_compare): Allow equivalency of an
identifier and a string literal containing no embedded zeros.
c-family/
* c-omp.c (c_omp_check_context_selector): Handle name lists
containing string literals.  Don't diagnose atomic_default_mem_order
with multiple props.
c/
* c-parser.c (c_parser_omp_context_selector): Rename
CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
identifier in that.  For CTX_PROPERTY_NAME_LIST, allow identifiers
and string literals.
cp/
* parser.c (cp_parser_omp_context_selector): Rename
CTX_PROPERTY_IDLIST to CTX_PROPERTY_NAME_LIST, add CTX_PROPERTY_ID.
Use CTX_PROPERTY_ID for atomic_default_mem_order, only allow a single
identifier in that.  For CTX_PROPERTY_NAME_LIST, allow identifiers
and string literals.
* pt.c (tsubst_attribute): Fix up STRING_CST handling if allow_string.
testsuite/
* c-c++-common/gomp/declare-variant-2.c: Adjust expected diagnostics,
add a test for atomic_default_mem_order with a string literal.
* c-c++-common/gomp/declare-variant-3.c: Use string literal props
in a few random places, add a few string literal prop related tests.
* c-c++-common/gomp/declare-variant-8.c: Likewise.
* c-c++-common/gomp/declare-variant-9.c: Use string literal props
in a few random places.
* c-c++-common/gomp/declare-variant-10.c: Likewise.
* c-c++-common/gomp/declare-variant-11.c: Likewise.
* c-c++-common/gomp/declare-variant-12.c: Likewise.
* g++.dg/gomp/declare-variant-7.C: Likewise.

From-SVN: r278202

Remove higher precision range tests because they are unused.

This removes the dependency on m_max_pairs from the selftests, which has
the ultimate effect of allowing us to put the tests in the selftest
namespace as was the original plan.

From-SVN: r278200

update_version_svn (IGNORE_BRANCHES): Add 7.

2019-11-14  Richard Biener  <rguenther@suse.de>

* update_version_svn (IGNORE_BRANCHES): Add 7.

From-SVN: r278199

Make normalize_addresses and normalize_symbolics work on THIS, instead
of returning by value.

From-SVN: r278196

[testsuite] Fix PR92464 by adjust test case loop bound

  The recent vectorization cost adjustment on load leads
  the profitable min iteration count to change from 19 to 12.
  The case happens to hit the threshold.  This patch is to
  adjust the loop bound from 16 to 14.

  gcc/testsuite/ChangeLog

  2019-11-14  Kewen Lin  <linkw@gcc.gnu.org>

    PR target/92464
    * gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c: Adjust
    loop bound due to load cost adjustment.

From-SVN: r278195

Support C2x [[]] attributes for C.

This patch adds support for the C2x [[]] attribute syntax to the C
front end.  Support is only added for C at this point, not for
Objective-C; I intend to add the unbounded lookahead required to
support it for Objective-C in a followup patch, but maybe not in
development stage 1.

The syntax is supported in all relevant places where the standard says
it is supported, but support is not added for the individual
attributes specified in C2x (all of which are optional to support).  I
expect to add support for some of them in followup patches; all except
nodiscard can be mapped directly to the semantics of an existing GNU
attribute (subject to extra checks for invalid usages such as the same
attribute being used more than once inside a single [[]]), and the
fallthrough attribute already works after this patch because of
existing special-case code handling it (but without some of the checks
for invalid usage being present).

Note that the four functions c_token_starts_declspecs,
c_token_starts_declaration, c_parser_next_token_starts_declspecs and
c_parser_next_tokens_start_declaration do *not* accept "[[".  This is
analogous with the handling of __extension__: both cases have the
property that they can start either a declaration or some other
statements and so need an unbounded number of tokens to be parsed in
the caller before it can find out what kind of syntactic construct
follows.  Note also that, while I updated all places calling those
functions for standard C syntax to handle attributes if applicable, I
did not do anything regarding calls to such functions for OpenMP or
OpenACC constructs.  Thus, if there are such constructs using such
functions where "[[" *should* be accepted as a possible start to a
declaration, the code for parsing those constructs should be updated
accordingly.

Although all cases of the syntax are handled, and attributes applied
to the constructs the standard says they should be (with less laxity
than there is for GNU attributes to allow an attribute applied to one
construct to be moved automatically to another one), there is a major
limitation in the existing language-independent code in attribs.c
preventing most cases of type attributes from working.  The following
code has been present with minor changes since the first support for
[[]] attributes for C++ was added:

      if (TYPE_P (*node)
          && cxx11_attr_p
          && !(flags & ATTR_FLAG_TYPE_IN_PLACE))
        {
          /* This is a c++11 attribute that appertains to a
             type-specifier, outside of the definition of, a class
             type.  Ignore it.  */
          auto_diagnostic_group d;
          if (warning (OPT_Wattributes, "attribute ignored"))
            inform (input_location,
                    "an attribute that appertains to a type-specifier "
                    "is ignored");
          continue;
        }

I see no justification for this in general for either C or C++ and so
propose to remove or restrict it in a followup bug-fix patch.  Both C
and C++ are clear about attributes in certain places (at the end of
declaration specifiers, or after function or array declarators)
appertaining to a specific type (and explicitly say, in the case of
attributes at the end of declaration specifiers, that they only apply
for that particular use of that type, not for subsequent uses of the
same type without the attributes).  Thus it seems clear to me that,
for example,

int [[gnu::mode(DI)]] x;

ought to be accepted as an analogue in [[]] syntax for

int __attribute__((mode(DI))) x;

(or strictly as an analogue for a version of that with extra
parentheses to make the GNU attribute bind properly to the type rather
than being automatically moved from the declaration to the type).
There are certain cases where an attribute *does* only make sense for
the definition of a type (e.g. "packed" on structure types), but those
should already be handled in the individual attribute handlers (such
as handle_packed_attribute, which already has code to deal with that
issue).  So my inclination is that the above-quoted check in attribs.c
should simply be removed, but failing that it should be restricted to
structure and union types (and such a change would be a bug-fix).
That would then allow various cases of [[]] attributes on types to
work properly.

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

gcc/c:
* c-tree.h (enum c_typespec_kind): Add ctsk_tagref_attrs and
ctsk_tagfirstref_attrs.
(struct c_declspecs): Update description of attrs.  Add
postfix_attrs and non_std_attrs_seen_p.  Increase size of
typespec_kind bit-field.
(c_warn_unused_attributes): New declaration.
(parser_xref_tag): Update prototype.
* c-decl.c (c_warn_unused_attributes): New function.
(shadow_tag_warned): Handle ctsk_tagfirstref_attrs and
ctsk_tagref_attrs.  Handle attribute declarations.
(check_compound_literal_type): Handle ctsk_tagfirstref_attrs.
(grokdeclarator): Handle standard attributes.
(parser_xref_tag): Add arguments have_std_attrs and attrs.  Apply
attributes to incomplete type reference.
(xref_tag): Update call to parser_xref_tag.
(declspecs_add_addrspace, declspecs_add_type)
(declspecs_add_scspec, declspecs_add_attrs): Set
non_std_attrs_seen_p.
(finish_declspecs): Apply postfix standard attributes to type.
* c-parser.c (c_token_starts_declspecs)
(c_token_starts_declaration, c_parser_next_token_starts_declspecs)
(c_parser_next_tokens_start_declaration): Update comments.
(c_parser_consume_token, c_parser_consume_pragma): Handle moving
parser->tokens[2] to parser->tokens[1].
(c_parser_nth_token_starts_std_attributes)
(c_parser_std_attribute_specifier_sequence): New functions.
(c_parser_declaration_or_fndef): Add arguments have_attrs and
attrs.  All callers changed.  Handle standard attributes.
(c_parser_parms_declarator, c_parser_parms_list_declarator)
(c_parser_parameter_declaration): Add argument have_gnu_attrs.
All callers changed.
(c_parser_declspecs): Add arguments start_std_attr_ok and
end_std_attr_ok.  All callers changed.  Handle standard
attributes.
(c_parser_enum_specifier, c_parser_struct_or_union_specifier)
(c_parser_direct_declarator, c_parser_direct_declarator_inner)
(c_parser_compound_statement_nostart, c_parser_all_labels)
(c_parser_label, c_parser_statement, c_parser_for_statement):
Handle standard attributes.
* c-parser.h (c_parser_declspecs): Update prototype.
* gimple-parser.c (c_parser_gimple_declaration): Update call to
c_parser_declspecs.

gcc/testsuite:
* gcc.dg/c2x-attr-fallthrough-1.c, gcc.dg/c2x-attr-syntax-1.c,
gcc.dg/c2x-attr-syntax-2.c, gcc.dg/c2x-attr-syntax-3.c,
gcc.dg/gnu2x-attr-syntax-1.c, gcc.dg/gnu2x-attr-syntax-2.c,
gcc.dg/gnu2x-attrs-1.c: New tests.

From-SVN: r278194

Support extended aggregate jump function in ipa-cp

2019-11-14  Feng Xue  <fxue@os.amperecomputing.com>

PR ipa/91682
* ipa-prop.h (jump_func_type): New value IPA_JF_LOAD_AGG.
(ipa_load_agg_data, ipa_agg_value, ipa_agg_value_set): New structs.
(ipa_agg_jf_item): Add new field jftype and type, redefine field value.
(ipa_agg_jump_function): Remove member function equal_to.
(ipa_agg_jump_function_p): Remove typedef.
(ipa_copy_agg_values, ipa_release_agg_values): New functions.
* ipa-prop.c (ipa_print_node_jump_functions_for_edge): Dump
information for aggregate jump function.
(get_ssa_def_if_simple_copy): Add new parameter rhs_stmt to
record last definition statement.
(load_from_unmodified_param_or_agg): New function.
(ipa_known_agg_contents_list): Add new field type and value, remove
field constant.
(build_agg_jump_func_from_list): Rename parameter const_count to
value_count, build aggregate jump function from ipa_load_agg_data.
(analyze_agg_content_value): New function.
(extract_mem_content): Analyze memory store assignment to prepare
information for aggregate jump function generation.
(determine_known_aggregate_parts): Add new parameter fbi, remove
parameter aa_walk_budeget_p.
(update_jump_functions_after_inlining): Update aggregate jump function.
(ipa_find_agg_cst_for_param): Change type of parameter agg.
(try_make_edge_direct_simple_call): Add new parameter new_root.
(try_make_edge_direct_virtual_call): Add new parameter new_root and
new_root_info.
(update_indirect_edges_after_inlining): Pass new argument to
try_make_edge_direct_simple_call and try_make_edge_direct_virtual_call.
(ipa_write_jump_function): Write aggregate jump function to file.
(ipa_read_jump_function): Read aggregate jump function from file.
(ipa_agg_value::equal_to): Migrate from ipa_agg_jf_item::equal_to.
* ipa-cp.c (ipa_get_jf_arith_result): New function.
(ipa_agg_value_from_node): Likewise.
(ipa_agg_value_set_from_jfunc): Likewise.
(propagate_vals_across_arith_jfunc): Likewise.
(propagate_aggregate_lattice): Likewise.
(ipa_get_jf_pass_through_result): Call ipa_get_jf_arith_result.
(propagate_vals_across_pass_through): Call
propagate_vals_across_arith_jfunc.
(get_clone_agg_value): Move forward.
(propagate_aggs_across_jump_function): Handle value propagation for
aggregate jump function.
(agg_jmp_p_vec_for_t_vec): Remove.
(context_independent_aggregate_values): Replace vec<ipa_agg_jf_item>
with vec<ipa_agg_value>.
(copy_plats_to_inter, intersect_with_plats): Likewise.
(agg_replacements_to_vector, intersect_with_agg_replacements): Likewise.
(intersect_aggregate_with_edge): Likewise.
(find_aggregate_values_for_callers_subset): Likewise.
(cgraph_edge_brings_all_agg_vals_for_node): Likewise.
(estimate_local_effects): Replace vec<ipa_agg_jump_function> and
vec<ipa_agg_jump_function_p> with vec<ipa_agg_value_set>.
(gather_context_independent_values): Likewise.
(perform_estimation_of_a_value, decide_whether_version_node): Likewise.
* ipa-fnsummary.c (evaluate_conditions_for_known_args): Replace
vec<ipa_agg_jump_function_p> with vec<ipa_agg_value_set>.
(evaluate_properties_for_edge): Likewise.
(estimate_edge_devirt_benefit): Likewise.
(estimate_edge_size_and_time):  Likewise.
(estimate_calls_size_and_time): Likewise.
(ipa_call_context::ipa_call_context): Likewise.
(estimate_ipcp_clone_size_and_time):  Likewise.
* ipa-fnsummary.h (ipa_call_context): Replace
vec<ipa_agg_jump_function_p> with vec<ipa_agg_value_set>.
* ipa-inline-analysis.c (do_estimate_edge_time): Replace
vec<ipa_agg_jump_function_p> with vec<ipa_agg_value_set>.
(do_estimate_edge_size): Likewise.
(do_estimate_edge_hints): Likewise.

2019-11-14  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/91682
        * gcc.dg/ipa/ipcp-agg-10.c: Change dg-scan string.
        * gcc.dg/ipa/ipcp-agg-11.c: New test.

From-SVN: r278193

re PR ipa/92421 (ICE in inline_small_functions, at ipa-inline.c:2001 since r277759)

PR ipa/92421
* g++.dg/torture/pr92421.C: Add -Wno-return-type to
dg-additional-options.  Avoid -Wwrite-string warnings, most of
-Wreturn-type warnings, define bf ctor.  Use struct instead of class
with public: at the start.

From-SVN: r278192

alias-decl-pr92206-3.C: Require effective target c++14 rather than c++11.

* g++.dg/cpp0x/alias-decl-pr92206-3.C: Require effective target c++14
rather than c++11.

From-SVN: r278191

ISO_Fortran_binding_17.c: Include ../../../libgfortran/ISO_Fortran_binding.h rather than...

* gfortran.dg/ISO_Fortran_binding_17.c: Include
../../../libgfortran/ISO_Fortran_binding.h rather than
ISO_Fortran_binding.h.

From-SVN: r278190

Daily bump.

From-SVN: r278189

ipa-cp.c (propagate_vr_across_jump_function): Propagate also across binary operations.

* ipa-cp.c (propagate_vr_across_jump_function): Propagate also across
binary operations.

From-SVN: r278185

ipa-profile.c (check_argument_count): Check properly that e_info is non-NULL; do not check descriptors.

* ipa-profile.c (check_argument_count): Check properly that e_info
is non-NULL; do not check descriptors.

From-SVN: r278184

ipa-inline-analysis.c (do_estimate_edge_time): Relax check for ipa profiles.

* ipa-inline-analysis.c (do_estimate_edge_time): Relax
check for ipa profiles.

From-SVN: r278179

re PR ipa/92421 (ICE in inline_small_functions, at ipa-inline.c:2001 since r277759)

PR c++/92421
* ipa-prop.c (update_indirect_edges_after_inlining):
Mark parameter as used.
* ipa-inline.c (recursive_inlining): Reset node cache
after inlining.
(inline_small_functions): Remove checking ifdef.
* ipa-inline-analysis.c (do_estimate_edge_time): Verify
cache consistency.
* g++.dg/torture/pr92421.C: New testcase.

From-SVN: r278159

re PR ipa/92498 (gcc.dg/tree-prof/crossmodule-indircall-1.c fails starting with r278100)

PR ipa/92498
* ipa-profile.c (check_argument_count): Do not ICE when descriptors
is NULL.
(ipa_profile): Fix reversed test.

From-SVN: r278157

ipa-cp.c (ignore_edge_p): Do not check caller flags.

* ipa-cp.c (ignore_edge_p): Do not check caller flags.
(propagate_constants_topo): Fix typo.

From-SVN: r278156

Move plain value_range things to value-range.[hc]*.

From-SVN: r278153

Sanitize the constant argument for rotr<mode>3

This was dormant for quite some time, but it started happening for me
on gcc.c-torture/compile/pr65153.c sometime after r276645 for -mabi=32 linux runs.

The pattern accepts any SMALL_OPERAND constant value while it asserts during the final
that the value is in the mode size range. I this case it happens that combine_and_move_insns
during ira makes a pattern with negative "shift count" which fails at final stage.

This simple fix just truncates the constant operand to mode size the same as shift patterns.

gcc/ChangeLog:

2019-11-13  Dragan Mladjenovic  <dmladjenovic@wavecomp.com>

* config/mips/mips.md (rotr<mode>3): Sanitize the constant argument
instead of asserting its value.

From-SVN: r278152

download_prerequisites: Use http instead of ftp for downloading.

2019-11-13  Janne Blomqvist  <jb@gcc.gnu.org>

        * download_prerequisites: Use http instead of ftp for downloading.

From-SVN: r278151

pr92090.c: Limit -mbig to powerpc64le-*-*.

        * gcc.target/powerpc/pr92090.c: Limit -mbig to powerpc64le-*-*.
        * gcc.target/powerpc/pr92090-2.c: Likewise.

From-SVN: r278150

libsupc++: Implement comparison algorithms for C++20

This is incomplete because std::strong_order doesn't support
floating-point types.

The partial_order and weak_order tests use VERIFY instead of
static_assert because of PR 92431.

* libsupc++/compare (strong_order, weak_order, partial_order)
(compare_strong_order_fallback, compare_weak_order_fallback)
(compare_partial_order_fallback): Define customization point objects
for C++20.
* testsuite/18_support/comparisons/algorithms/partial_order.cc: New
test.
* testsuite/18_support/comparisons/algorithms/strong_order.cc: New
test.
* testsuite/18_support/comparisons/algorithms/weak_order.cc: New test.

From-SVN: r278149

Rewrite value_range constructors to the value_range_kind is at the end, and defaults to VR_RANGE.

Rewrite value_range constructors to the value_range_kind is at the
end, and defaults to VR_RANGE.  Similarly for set() methods.

From-SVN: r278148

PR c++/89070 - bogus [[nodiscard]] warning in SFINAE.

This is a complaint that we issue a [[nodiscard]] warning even in SFINAE
contexts.  Here 'complain' is tf_decltype, but not tf_warning so I guess
we can fix it as below.

* cvt.c (convert_to_void): Guard maybe_warn_nodiscard calls with
tf_warning.

* g++.dg/cpp1z/nodiscard7.C: New test.

From-SVN: r278147

tree-dump.c (dequeue_and_dump): Print first tree operand for VIEW_CONVERT_EXPR.

2019-11-13  Ulrich Drepper  <drepper@redhat.com>

* tree-dump.c (dequeue_and_dump): Print first tree operand
for VIEW_CONVERT_EXPR.

From-SVN: r278146

Add C2x *_NORM_MAX constants to <float.h>.

C2x adds <float.h> constants FLT_NORM_MAX, DBL_NORM_MAX and
LDBL_NORM_MAX.  These are for the maximum "normalized" finite
floating-point number, where the given definition of normalized is
that all possible values with MANT_DIG significand digits (leading one
not zero) can be represented with that exponent.  The effect of that
definition is that these macros are the same as the corresponding MAX
macros for all formats except IBM long double, where the NORM_MAX
value has exponent 1 smaller than the MAX one so that all 106 digits
can be 1.

This patch adds those macros to GCC.  They are only defined for float,
double and long double; C2x does not include such macros for DFP
types, and while the integration of TS 18661-3 into C2x has not yet
occurred, the draft proposed text does not add them for the _FloatN /
_FloatNx types (where they would always be the same as the MAX
macros).

Bootstrapped with no regressions on x86_64-pc-linux-gnu.  Also tested
compilation of the new test for powerpc-linux-gnu to confirm the check
of LDBL_NORM_MAX in the IBM long double case does get properly
optimized out.

gcc:
* ginclude/float.c [__STDC_VERSION__ > 201710L] (FLT_NORM_MAX,
DBL_NORM_MAX, LDBL_NORM_MAX): Define.
* real.c (get_max_float): Add norm_max argument.
* real.h (get_max_float): Update prototype.
* builtins.c (fold_builtin_interclass_mathfn): Update calls to
get_max_float.

gcc/c-family:
* c-cppbuiltin.c (builtin_define_float_constants): Also define
NORM_MAX constants.  Update call to get_max_float.
(LAZY_HEX_FP_VALUES_CNT): Update value to include NORM_MAX
constants.

gcc/d:
* d-target.cc (define_float_constants): Update call to
get_max_float.

gcc/testsuite:
* gcc.dg/c11-float-3.c, gcc.dg/c2x-float-1.c: New tests.

From-SVN: r278145

Come up with selftests for dbgcnt.

2019-11-13  Martin Liska  <mliska@suse.cz>

* dbgcnt.c (test_sorted_dbg_counters): New.
(dbgcnt_c_tests): Likewise.
* selftest-run-tests.c (selftest::run_tests): Likewise.
* selftest.h (dbgcnt_c_tests): Likewise.

From-SVN: r278144

Add a few missing checks that IPA_NODE_REF is not NULL (PR 92454)

2019-11-13  Jan Hubicka  <hubicka@ucw.cz>
    Martin Jambor  <mjambor@suse.cz>

PR ipa/92454
* ipa-cp.c (spread_undeadness): Check that IPA_NODE_REF exists.
(identify_dead_nodes): Likewise.

testsuite/
* g++.dg/ipa/pr92454.C: New test.

From-SVN: r278142

Do not overuse push/pop_cfun in IPA ICF.

2019-11-13  Martin Liska  <mliska@suse.cz>

* ipa-icf.c (sem_function::equals_private): Do not overuse
push/pop_cfun functions.

From-SVN: r278141

Enhance syntax of -fdbg-cnt.

2019-11-13  Martin Liska  <mliska@suse.cz>

* common.opt: Document change of -fdbg-cnt option.
* dbgcnt.c (DEBUG_COUNTER): Remove.
(dbg_cnt_is_enabled): Remove.
(dbg_cnt): Work with new intervals.
(dbg_cnt_set_limit_by_index): Set to new
list of intervals.
(dbg_cnt_set_limit_by_name): Likewise.
(dbg_cnt_process_single_pair): Process new format.
(dbg_cnt_process_opt): Likewise.
(dbg_cnt_list_all_counters): Likewise.
* doc/invoke.texi: Document change of -fdbg-cnt option.
(cmp_tuples): New.
2019-11-13  Martin Liska  <mliska@suse.cz>

* gcc.dg/ipa/ipa-icf-39.c: Update -fdbg-cnt to the new format.
* gcc.dg/pr68766.c: Likewise.

From-SVN: r278140

ipa-inline.c (ipa_inline): Check that function is defined before flattening.

* ipa-inline.c (ipa_inline): Check that function is defined before
flattening.
* gcc.c-torture/compile/flatten.c: New testcase.

From-SVN: r278139

GCN Libgomp Plugin

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
    Kwok Cheung Yeung  <kcy@codesourcery.com>
    Julian Brown  <julian@codesourcery.com>
    Tom de Vries  <tom@codesourcery.com>

libgomp/
* plugin/Makefrag.am: Add amdgcn plugin support.
* plugin/configfrag.ac: Likewise.
* plugin/plugin-gcn.c: New file.
* configure: Regenerate.
* Makefile.in: Regenerate.
* testsuite/Makefile.in: Regenerate.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>
From-SVN: r278138

Use a single worker for OpenACC on AMD GCN

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
    Julian Brown  <julian@codesourcery.com>

gcc/
* config/gcn/gcn.c (gcn_goacc_validate_dims): Ensure
flag_worker_partitioning is not set.
(TARGET_GOACC_WORKER_PARTITIONING): Remove target hook definition.
* config/gcn/gcn.opt (macc-experimental-workers): Default to off.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
From-SVN: r278137

Optimize GCN OpenMP malloc performance

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>

libgomp/
* config/gcn/team.c (gomp_gcn_enter_kernel): Set up the team arena
and use team_malloc variants.
(gomp_gcn_exit_kernel): Use team_free.
* libgomp.h (TEAM_ARENA_SIZE): Define.
(TEAM_ARENA_START): Define.
(TEAM_ARENA_FREE): Define.
(TEAM_ARENA_END): Define.
(team_malloc): New function.
(team_malloc_cleared): New function.
(team_free): New function.
* team.c (gomp_new_team): Initialize and use team_malloc.
(free_team): Use team_free.
(gomp_free_thread): Use team_free.
(gomp_pause_host): Use team_free.
* work.c (gomp_init_work_share): Use team_malloc.
(gomp_fini_work_share): Use team_free.

From-SVN: r278136

GCN libgomp port

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
    Kwok Cheung Yeung  <kcy@codesourcery.com>
    Julian Brown  <julian@codesourcery.com>
    Tom de Vries  <tom@codesourcery.com>

include/
* gomp-constants.h (GOMP_DEVICE_GCN): Define.
(GOMP_VERSION_GCN): Define.

libgomp/
* Makefile.am (libgomp_la_SOURCES): Add oacc-target.c.
* Makefile.in: Regenerate.
* config.h.in (PLUGIN_GCN): Add new undef.
* config/accel/openacc.f90 (acc_device_gcn): New parameter.
* config/gcn/affinity-fmt.c: New file.
* config/gcn/bar.c: New file.
* config/gcn/bar.h: New file.
* config/gcn/doacross.h: New file.
* config/gcn/icv-device.c: New file.
* config/gcn/oacc-target.c: New file.
* config/gcn/simple-bar.h: New file.
* config/gcn/target.c: New file.
* config/gcn/task.c: New file.
* config/gcn/team.c: New file.
* config/gcn/time.c: New file.
* configure.ac: Add amdgcn*-*-*.
* configure: Regenerate.
* configure.tgt: Add amdgcn*-*-*.
* libgomp-plugin.h (offload_target_type): Add OFFLOAD_TARGET_TYPE_GCN.
* libgomp.h (gcn_thrs): Add amdgcn variant.
(set_gcn_thrs): Likewise.
(gomp_thread): Likewise.
* oacc-int.h (goacc_thread): Likewise.
* oacc-target.c: New file.
* openacc.f90 (acc_device_gcn): New parameter.
* openacc.h (acc_device_t): Add acc_device_gcn.
* team.c (gomp_free_pool_helper): Add amdgcn support.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>
From-SVN: r278135

Add device number to GOMP_OFFLOAD_openacc_async_construct

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
    Julian Brown  <julian@codesourcery.com>

libgomp/
* libgomp-plugin.h (GOMP_OFFLOAD_openacc_async_construct): Add int
parameter.
* oacc-async.c (lookup_goacc_asyncqueue): Pass device number to the
queue constructor.
* oacc-host.c (host_openacc_async_construct): Add device parameter.
* plugin/plugin-nvptx.c (GOMP_OFFLOAD_openacc_async_construct): Add
device parameter.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
From-SVN: r278134

GCN mkoffload

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
    Kwok Cheung Yeung  <kcy@codesourcery.com>
    Julian Brown  <julian@codesourcery.com>
    Tom de Vries  <tom@codesourcery.com>

gcc/
* config/gcn/mkoffload.c: New file.
* config/gcn/offload.h: New file.

From-SVN: r278133

Move generic libgomp files from nvptx to accel

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>

libgomp/
* configure.tgt (nvptx*-*-*): Add "accel" directory.
* config/nvptx/libgomp-plugin.c: Move ...
* config/accel/libgomp-plugin.c: ... to here.
* config/nvptx/lock.c: Move ...
* config/accel/lock.c: ... to here.
* config/nvptx/mutex.c: Move ...
* config/accel/mutex.c: ... to here.
* config/nvptx/mutex.h: Move ...
* config/accel/mutex.h: ... to here.
* config/nvptx/oacc-async.c: Move ...
* config/accel/oacc-async.c: ... to here.
* config/nvptx/oacc-cuda.c: Move ...
* config/accel/oacc-cuda.c: ... to here.
* config/nvptx/oacc-host.c: Move ...
* config/accel/oacc-host.c: ... to here.
* config/nvptx/oacc-init.c: Move ...
* config/accel/oacc-init.c: ... to here.
* config/nvptx/oacc-mem.c: Move ...
* config/accel/oacc-mem.c: ... to here.
* config/nvptx/oacc-plugin.c: Move ...
* config/accel/oacc-plugin.c: ... to here.
* config/nvptx/omp-lock.h: Move ...
* config/accel/omp-lock.h: ... to here.
* config/nvptx/openacc.f90: Move ...
* config/accel/openacc.f90: ... to here.
* config/nvptx/pool.h: Move ...
* config/accel/pool.h: ... to here.
* config/nvptx/proc.c: Move ...
* config/accel/proc.c: ... to here.
* config/nvptx/ptrlock.c: Move ...
* config/accel/ptrlock.c: ... to here.
* config/nvptx/ptrlock.h: Move ...
* config/accel/ptrlock.h: ... to here.
* config/nvptx/sem.c: Move ...
* config/accel/sem.c: ... to here.
* config/nvptx/sem.h: Move ...
* config/accel/sem.h: ... to here.
* config/nvptx/thread-stacksize.h: Move ...
* config/accel/thread-stacksize.h: ... to here.

From-SVN: r278132

Move gcn-run heap into GPU memory.

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>

gcc/
* config/gcn/gcn-run.c (heap_region): New global variable.
(struct hsa_runtime_fn_info): Add hsa_memory_assign_agent_fn.
(init_hsa_runtime_functions): Initialize hsa_memory_assign_agent.
(get_kernarg_region): Move contents to ....
(get_memory_region): .... here.
(get_heap_region): New function.
(init_device): Initialize the heap_region.
(device_malloc): Add region parameter.
(struct kernargs): Move heap ....
(heap): ... to global scope.
(main): Allocate heap separate to kernargs.

From-SVN: r278131

c-ada-spec.c (get_underlying_decl): Do not look through typedefs.

* c-ada-spec.c (get_underlying_decl): Do not look through typedefs.
(dump_forward_type): Do not generate a declaration for function types.
(dump_nested_type) <ARRAY_TYPE>: Do not generate a nested declaration
of the component type if it is declared in another file.

From-SVN: r278129

PR fortran/92470 Fixes for CFI_address

        libgfortran/
        PR fortran/92470
        * runtime/ISO_Fortran_binding.c (CFI_establish): Set lower_bound to 0
        also for CFI_attribute_other.

        gcc/testsuite/
        PR fortran/92470
        * gfortran.dg/ISO_Fortran_binding_1.c (establish_c): Add assert for
        lower_bound == 0.

From-SVN: r278128

ipa-prop.c (ipa_print_node_jump_functions, [...]): Print info about missing summaries.

* ipa-prop.c (ipa_print_node_jump_functions,
ipa_print_node_params): Print info about missing summaries.

From-SVN: r278127

Enable libsanitizer build on riscv64

* configure.tgt (riscv64-*-linux*): Enable build.

From-SVN: r278126

Account for the cost of generating loop masks

We didn't take the cost of generating loop masks into account, and so
tended to underestimate the cost of loops that need multiple masks.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (vect_estimate_min_profitable_iters): Include
the cost of generating loop masks.

gcc/testsuite/
* gcc.target/aarch64/sve/mask_struct_store_3.c: Add
-fno-vect-cost-model.
* gcc.target/aarch64/sve/mask_struct_store_3_run.c: Likewise.
* gcc.target/aarch64/sve/peel_ind_2.c: Likewise.
* gcc.target/aarch64/sve/peel_ind_2_run.c: Likewise.
* gcc.target/aarch64/sve/peel_ind_3.c: Likewise.
* gcc.target/aarch64/sve/peel_ind_3_run.c: Likewise.

From-SVN: r278125

Avoid accounting for non-existent vector loop versioning

vect_analyze_loop_costing uses two profitability thresholds: a runtime
one and a static compile-time one.  The runtime one is simply the point
at which the vector loop is cheaper than the scalar loop, while the
static one also takes into account the cost of choosing between the
scalar and vector loops at runtime.  We compare this static cost against
the expected execution frequency to decide whether it's worth generating
any vector code at all.

However, we never reclaimed the cost of applying the runtime threshold
if it turned out that the vector code can always be used.  And we only
know whether that's true once we've calculated what the runtime
threshold would be.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vect_apply_runtime_profitability_check_p):
New function.
* tree-vect-loop-manip.c (vect_loop_versioning): Use it.
* tree-vect-loop.c (vect_analyze_loop_2): Likewise.
(vect_transform_loop): Likewise.
(vect_analyze_loop_costing): Don't take the cost of versioning
into account for the static profitability threshold if it turns
out that no versioning is needed.

From-SVN: r278124

ipa.c (cgraph_build_static_cdtor): Pass optimization_default_node and target_option_default_node to get...

* ipa.c (cgraph_build_static_cdtor): Pass optimization_default_node
and target_option_default_node to get -fprofile-generate ctors working
right with LTO.

From-SVN: r278123

Don't assign a cost to vectorizable_assignment

vectorizable_assignment handles true SSA-to-SSA copies (which hopefully
we don't see in practice) and no-op conversions that are required
to maintain correct gimple, such as changes between signed and
unsigned types.  These cases shouldn't generate any code and so
shouldn't count against either the scalar or vector costs.

Later patches test this, but it seemed worth splitting out.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vectorizer.h (vect_nop_conversion_p): Declare.
* tree-vect-stmts.c (vect_nop_conversion_p): New function.
(vectorizable_assignment): Don't add a cost for nop conversions.
* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
Likewise.
* tree-vect-slp.c (vect_bb_slp_scalar_cost): Likewise.

From-SVN: r278122

Fix vectorizable_conversion costs

This patch makes two tweaks to vectorizable_conversion.  The first
is to use "modifier" to distinguish between promotion, demotion,
and neither promotion nor demotion, rather than using a code for
some cases and "modifier" for others.  The second is to take ncopies
into account for the promotion and demotion costs; previously we gave
multiple copies the same cost as a single copy.

Later patches test this, but it seemed worth splitting out.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-stmts.c (vect_model_promotion_demotion_cost): Take the
number of ncopies as an additional argument.
(vectorizable_conversion): Update call accordingly.  Use "modifier"
to check whether a conversion is between vectors with the same
numbers of units.

From-SVN: r278121

[AArch64] Use aarch64_sve_int_mode in SVE ACLE code

This is a like-for-like change at the moment, but is a prerequisite
for removing mode_for_int_vector.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* config/aarch64/aarch64-sve-builtins-functions.h
(unary_count::expand): Use aarch64_sve_int_mode instead of
mode_for_int_vector.

From-SVN: r278120

[C++] Fix interaction between aka changes and DR1558 (PR92206)

One of the changes in r277281 was to make the typedef variant
handling in strip_typedefs pass the raw DECL_ORIGINAL_TYPE to the
recursive call, instead of applying TYPE_MAIN_VARIANT first.
This PR shows that that interacts badly with the implementation
of DR1558, because we then refuse to strip aliases with dependent
template parameters and trip:

  gcc_assert (!typedef_variant_p (result)
      || ((flags & STF_USER_VISIBLE)
  && !user_facing_original_type_p (result)));

Keeping the current behaviour but suppressing the ICE leads to a
duplicate error (the dg-bogus in the first test), so that didn't
seem like a good fix.

I assume keeping the alias should never actually be necessary for
DECL_ORIGINAL_TYPEs, because it will already have been checked
somewhere, even for implicit TYPE_DECLs.  This patch therefore
passes a flag to say that we can safely strip aliases with
dependent template parameters.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/cp/
PR c++/92206
* cp-tree.h (STF_STRIP_DEPENDENT): New constant.
* tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
Don't apply the fix for DR1558 in that case; allow aliases with
dependent template parameters to be stripped instead.

gcc/testsuite/
PR c++/92206
* g++.dg/cpp0x/alias-decl-pr92206-1.C: New test.
* g++.dg/cpp0x/alias-decl-pr92206-2.C: Likewise.
* g++.dg/cpp0x/alias-decl-pr92206-3.C: Likewise.

From-SVN: r278119

Update comment in opts.c.

2019-11-13  Martin Liska  <mliska@suse.cz>

* opts.c: Update comment about OPT_LEVELS_2_PLUS_SPEED_ONLY.

From-SVN: r278118

Fix params.exp by parsing output of --help=params -Q.

2019-11-13  Martin Liska  <mliska@suse.cz>

* gcc.dg/params/params.exp: Restore test by parsing output
of --help=params -Q.

From-SVN: r278117

Remove leftover call to finalize_options_struct.

2019-11-13  Martin Liska  <mliska@suse.cz>

* tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers):
Remove call to finalize_options_struct.

From-SVN: r278116

re PR target/92055 ([avr] Support 64-bit double)

PR target/92055
* config/avr/t-avr (avr-mcus): Do not depend on
$(srcdir)/config/avr/t-multilib.

From-SVN: r278115

Fortran] Use proper type for hidden is-present argument

        gcc/fortran/
        * trans-expr.c (gfc_conv_procedure_call): Fold hidden
        is-present argument to the right type.

From-SVN: r278114

re PR target/92473 (test pr92324-2.c fails on arm and aarch64)

2019-11-13  Richard Biener  <rguenther@suse.de>

PR tree-optimization/92473
* tree-vect-loop.c (vect_create_epilog_for_reduction): Perform
direct optab reduction in the correct type.

From-SVN: r278113

Add option -fweb for pr47763.c

This case is testing 'web' on ignore naked clobber.
-funroll-loops no longer implies -fweb for powerpc.
So, add -fweb to enable 'web' for this case.

gcc.testsuite/
2019-11-13  Jiufu Guo  <guojiufu@linux.ibm.com>

PR target/92465
* gcc.dg/pr47763.c: Add option -fweb.

From-SVN: r278112

Daily bump.

From-SVN: r278111

rs6000: Use ULL on big hexadecimal literal

C++98 does not have long long int, and does not use (unsigned) long
long int for hexadecimal literals.  So let's use an ULL suffix here,
which is still not strict C++98, but which works with more compilers.

* config/rs6000/rs6000.md (rs6000_set_fpscr_drn): Use ULL on big
hexadecimal literal.

From-SVN: r278107

[C++ PATCH] Merge some using-decl handling

https://gcc.gnu.org/ml/gcc-patches/2019-11/msg00971.html
gcc/cp/
* name-lookup.c (lookup_using_decl): New function, merged from ...
(do_class_using_decl): ... here.  Call it.  And ...
(finish_nonmember_using_decl): ... here.  Call it.

gcc/testsuite/
* g++.dg/cpp0x/using-enum-2.C: Adjust expected error text.
* g++.dg/cpp0x/using-enum-3.C: Likewise.
* g++.dg/lookup/using4.C: Likewise.
* g++.dg/lookup/using7.C: Likewise.
* g++.dg/template/using12.C: Likewise.
* g++.dg/template/using18.C: Likewise.
* g++.dg/template/using22.C: Likewise.

From-SVN: r278106

re PR fortran/81651 (Enhancement request: have f951 print out fully qualified module file name)

2019-11-12  Harald Anlauf  <anlauf@gmx.de>

PR fortran/81651
* module.c (gzopen_included_file, gzopen_included_file_1)
(gzopen_intrinsic_module, bad_module, gfc_use_module): Use fully
qualified module path for error reporting.

From-SVN: r278105

testsuite: Add testcases for PR92449

PR target/92449
* gcc.c-torture/compile/pr92449.c: New test.
* gcc.target/powerpc/pr92449-1.c: New test.

From-SVN: r278104

rs6000: Handle unordered for xscmpexp[dq]p without NaNs (PR92449)

* config/rs6000/vsx.md (xscmpexpdp_<code> for CMP_TEST): Handle
UNORDERED if !HONOR_NANS (DFmode).
(xscmpexpqp_<code>_<mode> for CMP_TEST and IEEE128): Handle UNORDERED
if !HONOR_NANS (<MODE>mode).

From-SVN: r278103

ipa-cp.c (ignore_edge_p): Also look for optimize flag.

* ipa-cp.c (ignore_edge_p): Also look for optimize flag.
(ipcp_verify_propagated_values): Likewise.
(propagate_constants_across_call): Likewise.
(propagate_constants_topo): Likewise.
(ipcp_propagate_stage): Likewise.

From-SVN: r278102

PR fortran/92470 Fixes for CFI_address

        libgfortran/
        PR fortran/92470
        * runtime/ISO_Fortran_binding.c (CFI_address): Handle non-zero
        lower_bound; update error message.
        (CFI_allocate): Fix comment typo.
        (CFI_establish): Fix identation, fix typos, don't check values of 'dv'
        argument.

        gcc/testsuite/
        PR fortran/92470
        * gfortran.dg/ISO_Fortran_binding_17.c: New.
        * gfortran.dg/ISO_Fortran_binding_17.f90: New.
        * gfortran.dg/ISO_Fortran_binding_1.c (elemental_mult_c, allocate_c,
        section_c, select_part_c): Update for CFI_{address} changes;
        add asserts.

From-SVN: r278101

re PR ipa/92471 ([ICE] lto1 segmentation fault: ipa-profile.c ipa_get_cs_argument_count (args=0x0))

PR ipa/92471
* ipa-profile.c (check_argument_count): Break out from ...;
watch for missing summaries.
(ipa_profile): Here.

From-SVN: r278100

PR tree-optimization/92412 - excessive errno aliasing assumption defeats optimization

gcc/ChangeLog:

PR tree-optimization/92412
* targhooks.c (default_ref_may_alias_errno): Errono can only alias
extern variables.

gcc/testsuite/ChangeLog:

PR tree-optimization/92412
* gcc.dg/strlenopt-91.c: New test.

From-SVN: r278099

PR middle-end/83688 - check if buffers may overlap when copying strings using sprintf

gcc/ChangeLog:

PR middle-end/83688
* gimple-ssa-sprintf.c (format_result::alias_info): New struct.
(directive::argno): New member.
(format_result::aliases, format_result::alias_count): New data members.
(format_result::append_alias): New member function.
(fmtresult::dst_offset): New data member.
(pass_sprintf_length::call_info::dst_origin): New data member.
(pass_sprintf_length::call_info::dst_field, dst_offset): Same.
(char_type_p, array_elt_at_offset, field_at_offset): New functions.
(get_origin_and_offset): Same.
(format_string): Call it.
(format_directive): Call append_alias and set directive argument
number.
(maybe_warn_overlap): New function.
(pass_sprintf_length::compute_format_length): Call it.
(pass_sprintf_length::handle_gimple_call): Initialize new members.
* gcc/tree-ssa-strlen.c (): Also enable when -Wrestrict is on.

gcc/testsuite/ChangeLog:

PR tree-optimization/35503
* gcc.dg/tree-ssa/builtin-sprintf-warn-23.c: New test.

From-SVN: r278098

[PR c++/6936] Delete duplicate test

https://gcc.gnu.org/ml/gcc-patches/2019-11/msg00926.html
* g++.dg/lookup/pr6936.C: Delete, identical to using38.C

From-SVN: r278096

Free dominance info at the beginning of pass_jump_after_combine

try_forward_edges does not update dominance info, and merge_blocks
relies on it being up-to-date.  In PR92430 stale dominance info makes
merge_blocks produce a loop in the dominator tree, which in turn makes
delete_basic_block loop forever.

Fix by freeing dominance info at the beginning of cleanup_cfg.

gcc/ChangeLog:

2019-11-12  Ilya Leoshkevich  <iii@linux.ibm.com>

PR rtl-optimization/92430
* cfgcleanup.c (pass_jump_after_combine::execute): Free
dominance info at the beginning.

gcc/testsuite/ChangeLog:

2019-11-12  Ilya Leoshkevich  <iii@linux.ibm.com>

PR rtl-optimization/92430
* gcc.dg/pr92430.c: New test (from Arseny Solokha).

From-SVN: r278095

re PR tree-optimization/92460 (ICE: verify_ssa failed (error: definition in block 13 does not dominate use in block 22))

2019-11-12  Richard Biener  <rguenther@suse.de>

PR tree-optimization/92460
* tree-vect-stmts.c (vectorizable_simd_clone_call): Unshare
expression before gimplifying.

From-SVN: r278094

re PR tree-optimization/92461 (ICE: verify_ssa failed (error: excess use operand for statement))

2019-11-12  Richard Biener  <rguenther@suse.de>

PR tree-optimization/92461
* tree-vect-loop.c (vect_create_epilog_for_reduction): Update
stmt after propagation.

* gcc.dg/torture/pr92461.c: New testcase.

From-SVN: r278093

Use more SET_OPTION_IF_UNSET.

2019-11-12  Martin Liska  <mliska@suse.cz>

* config/i386/i386-options.c (ix86_recompute_optlev_based_flags):
Use SET_OPTION_IF_UNSET.
(ix86_option_override_internal): Likewise.
* opts.c (default_options_optimization): Likewise.
(finish_options): Likewise.
(enable_fdo_optimizations): Likewise.
(common_handle_option): Likewise.
2019-11-12  Martin Liska  <mliska@suse.cz>

* c-opts.c (c_common_post_options):
Use SET_OPTION_IF_UNSET.
2019-11-12  Martin Liska  <mliska@suse.cz>

* options.c (gfc_init_options):
Use SET_OPTION_IF_UNSET.
2019-11-12  Martin Liska  <mliska@suse.cz>

* go-lang.c (go_langhook_post_options):
Use SET_OPTION_IF_UNSET.

From-SVN: r278091

Remove option_default_params and option_validate_param hooks.

2019-11-12  Martin Liska  <mliska@suse.cz>

* common/common-target.def: Remove option_validate_param and
option_default_params.
* common/common-targhooks.c (default_option_validate_param):
Remove.
* common/common-targhooks.h (default_option_validate_param):
Remove.
* common/config/aarch64/aarch64-common.c (TARGET_OPTION_DEFAULT_PARAMS):
Remove usage of this.
(TARGET_OPTION_VALIDATE_PARAM): Likewise.
(aarch64_option_validate_param): Likewise.
(aarch64_option_default_params): Likewise
* common/config/bpf/bpf-common.c (bpf_option_default_params): Likewise.
(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
* common/config/ia64/ia64-common.c (ia64_option_default_params): Likewise.
(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
* common/config/powerpcspe/powerpcspe-common.c (rs6000_option_default_params): Likewise.
(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
* common/config/rs6000/rs6000-common.c (rs6000_option_default_params): Likewise.
(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
* common/config/sh/sh-common.c (sh_option_default_params): Likewise.
(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
* config/aarch64/aarch64.c (aarch64_override_options_internal): Validate
guard_size here.
* doc/tm.texi: Remove option_default_params and option_validate_param.
* doc/tm.texi.in: Likewise.

From-SVN: r278090

Fix test-suite fallout.

2019-11-12  Martin Liska  <mliska@suse.cz>

* gcc.dg/completion-3.c: Append = to all expected
results and sort expected output.
* gcc.dg/pr83620.c: Update error message.
* gcc.dg/spellcheck-params-2.c: Likewise.
* gcc.dg/spellcheck-params.c: Likewise.
* gcc.misc-tests/help.exp: Update expected output.

From-SVN: r278089

Remove set_default_param_value from documentation.

2019-11-12  Martin Liska  <mliska@suse.cz>

* common/common-target.def:
Do not mention set_default_param_value
and set_param_value.
* doc/tm.texi: Likewise.

From-SVN: r278088

Remove last leftover usage of params* files.

2019-11-12  Martin Liska  <mliska@suse.cz>

* common.opt: Remove param_values.
* config/i386/i386-options.c (ix86_valid_target_attribute_p):
Remove finalize_options_struct.
* gcc.c (driver::decode_argv): Do not call global_init_params
and finish_params.
(driver::finalize): Do not call params_c_finalize
and finalize_options_struct.
* opt-suggestions.c (option_proposer::get_completions): Remove
special casing of params.
(option_proposer::find_param_completions): Remove.
(test_completion_partial_match): Update expected output.
* opt-suggestions.h: Remove find_param_completions.
* opts-common.c (add_misspelling_candidates): Add
--param with a space.
* opts.c (handle_param): Remove.
(init_options_struct):. Remove init_options_struct and
similar calls.
(finalize_options_struct): Remove.
(common_handle_option): Use SET_OPTION_IF_UNSET.
* opts.h (finalize_options_struct): Remove.
* toplev.c (general_init): Do not call global_init_params.
(toplev::finalize): Do not call params_c_finalize and
finalize_options_struct.

From-SVN: r278087

Remove gcc/params.* files.

2019-11-12  Martin Liska  <mliska@suse.cz>

* Makefile.in: Remove PARAMS_H and params.list
and params.options.
* params-enum.h: Remove.
* params-list.h: Remove.
* params-options.h: Remove.
* params.c: Remove.
* params.def: Remove.
* params.h: Remove.
* asan.c: Do not include params.h.
* auto-profile.c: Likewise.
* bb-reorder.c: Likewise.
* builtins.c: Likewise.
* cfgcleanup.c: Likewise.
* cfgexpand.c: Likewise.
* cfgloopanal.c: Likewise.
* cgraph.c: Likewise.
* combine.c: Likewise.
* common/config/aarch64/aarch64-common.c: Likewise.
* common/config/gcn/gcn-common.c: Likewise.
* common/config/ia64/ia64-common.c: Likewise.
* common/config/powerpcspe/powerpcspe-common.c: Likewise.
* common/config/rs6000/rs6000-common.c: Likewise.
* common/config/sh/sh-common.c: Likewise.
* config/aarch64/aarch64.c: Likewise.
* config/alpha/alpha.c: Likewise.
* config/arm/arm.c: Likewise.
* config/avr/avr.c: Likewise.
* config/csky/csky.c: Likewise.
* config/i386/i386-builtins.c: Likewise.
* config/i386/i386-expand.c: Likewise.
* config/i386/i386-features.c: Likewise.
* config/i386/i386-options.c: Likewise.
* config/i386/i386.c: Likewise.
* config/ia64/ia64.c: Likewise.
* config/rs6000/rs6000-logue.c: Likewise.
* config/rs6000/rs6000.c: Likewise.
* config/s390/s390.c: Likewise.
* config/sparc/sparc.c: Likewise.
* config/visium/visium.c: Likewise.
* coverage.c: Likewise.
* cprop.c: Likewise.
* cse.c: Likewise.
* cselib.c: Likewise.
* dse.c: Likewise.
* emit-rtl.c: Likewise.
* explow.c: Likewise.
* final.c: Likewise.
* fold-const.c: Likewise.
* gcc.c: Likewise.
* gcse.c: Likewise.
* ggc-common.c: Likewise.
* ggc-page.c: Likewise.
* gimple-loop-interchange.cc: Likewise.
* gimple-loop-jam.c: Likewise.
* gimple-loop-versioning.cc: Likewise.
* gimple-ssa-split-paths.c: Likewise.
* gimple-ssa-sprintf.c: Likewise.
* gimple-ssa-store-merging.c: Likewise.
* gimple-ssa-strength-reduction.c: Likewise.
* gimple-ssa-warn-alloca.c: Likewise.
* gimple-ssa-warn-restrict.c: Likewise.
* graphite-isl-ast-to-gimple.c: Likewise.
* graphite-optimize-isl.c: Likewise.
* graphite-scop-detection.c: Likewise.
* graphite-sese-to-poly.c: Likewise.
* graphite.c: Likewise.
* haifa-sched.c: Likewise.
* hsa-gen.c: Likewise.
* ifcvt.c: Likewise.
* ipa-cp.c: Likewise.
* ipa-fnsummary.c: Likewise.
* ipa-inline-analysis.c: Likewise.
* ipa-inline.c: Likewise.
* ipa-polymorphic-call.c: Likewise.
* ipa-profile.c: Likewise.
* ipa-prop.c: Likewise.
* ipa-split.c: Likewise.
* ipa-sra.c: Likewise.
* ira-build.c: Likewise.
* ira-conflicts.c: Likewise.
* loop-doloop.c: Likewise.
* loop-invariant.c: Likewise.
* loop-unroll.c: Likewise.
* lra-assigns.c: Likewise.
* lra-constraints.c: Likewise.
* modulo-sched.c: Likewise.
* opt-suggestions.c: Likewise.
* opts.c: Likewise.
* postreload-gcse.c: Likewise.
* predict.c: Likewise.
* reload.c: Likewise.
* reorg.c: Likewise.
* resource.c: Likewise.
* sanopt.c: Likewise.
* sched-deps.c: Likewise.
* sched-ebb.c: Likewise.
* sched-rgn.c: Likewise.
* sel-sched-ir.c: Likewise.
* sel-sched.c: Likewise.
* shrink-wrap.c: Likewise.
* stmt.c: Likewise.
* targhooks.c: Likewise.
* toplev.c: Likewise.
* tracer.c: Likewise.
* trans-mem.c: Likewise.
* tree-chrec.c: Likewise.
* tree-data-ref.c: Likewise.
* tree-if-conv.c: Likewise.
* tree-inline.c: Likewise.
* tree-loop-distribution.c: Likewise.
* tree-parloops.c: Likewise.
* tree-predcom.c: Likewise.
* tree-profile.c: Likewise.
* tree-scalar-evolution.c: Likewise.
* tree-sra.c: Likewise.
* tree-ssa-ccp.c: Likewise.
* tree-ssa-dom.c: Likewise.
* tree-ssa-dse.c: Likewise.
* tree-ssa-ifcombine.c: Likewise.
* tree-ssa-loop-ch.c: Likewise.
* tree-ssa-loop-im.c: Likewise.
* tree-ssa-loop-ivcanon.c: Likewise.
* tree-ssa-loop-ivopts.c: Likewise.
* tree-ssa-loop-manip.c: Likewise.
* tree-ssa-loop-niter.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-loop-unswitch.c: Likewise.
* tree-ssa-math-opts.c: Likewise.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-pre.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-ssa-sccvn.c: Likewise.
* tree-ssa-scopedtables.c: Likewise.
* tree-ssa-sink.c: Likewise.
* tree-ssa-strlen.c: Likewise.
* tree-ssa-structalias.c: Likewise.
* tree-ssa-tail-merge.c: Likewise.
* tree-ssa-threadbackward.c: Likewise.
* tree-ssa-threadedge.c: Likewise.
* tree-ssa-uninit.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vrp.c: Likewise.
* tree.c: Likewise.
* value-prof.c: Likewise.
* var-tracking.c: Likewise.
2019-11-12  Martin Liska  <mliska@suse.cz>

* gimple-parser.c: Do not include params.h.
2019-11-12  Martin Liska  <mliska@suse.cz>

* name-lookup.c: Do not include params.h.
* typeck.c: Likewise.
2019-11-12  Martin Liska  <mliska@suse.cz>

* lto-common.c: Do not include params.h.
* lto-partition.c: Likewise.
* lto.c: Likewise.

From-SVN: r278086

Apply mechanical replacement (generated patch).

2019-11-12  Martin Liska  <mliska@suse.cz>

* asan.c (asan_sanitize_stack_p): Replace old parameter syntax
with the new one, include opts.h if needed.  Use SET_OPTION_IF_UNSET
macro.
(asan_sanitize_allocas_p): Likewise.
(asan_emit_stack_protection): Likewise.
(asan_protect_global): Likewise.
(instrument_derefs): Likewise.
(instrument_builtin_call): Likewise.
(asan_expand_mark_ifn): Likewise.
* auto-profile.c (auto_profile): Likewise.
* bb-reorder.c (copy_bb_p): Likewise.
(duplicate_computed_gotos): Likewise.
* builtins.c (inline_expand_builtin_string_cmp): Likewise.
* cfgcleanup.c (try_crossjump_to_edge): Likewise.
(try_crossjump_bb): Likewise.
* cfgexpand.c (defer_stack_allocation): Likewise.
(stack_protect_classify_type): Likewise.
(pass_expand::execute): Likewise.
* cfgloopanal.c (expected_loop_iterations_unbounded): Likewise.
(estimate_reg_pressure_cost): Likewise.
* cgraph.c (cgraph_edge::maybe_hot_p): Likewise.
* combine.c (combine_instructions): Likewise.
(record_value_for_reg): Likewise.
* common/config/aarch64/aarch64-common.c (aarch64_option_validate_param): Likewise.
(aarch64_option_default_params): Likewise.
* common/config/ia64/ia64-common.c (ia64_option_default_params): Likewise.
* common/config/powerpcspe/powerpcspe-common.c (rs6000_option_default_params): Likewise.
* common/config/rs6000/rs6000-common.c (rs6000_option_default_params): Likewise.
* common/config/sh/sh-common.c (sh_option_default_params): Likewise.
* config/aarch64/aarch64.c (aarch64_output_probe_stack_range): Likewise.
(aarch64_allocate_and_probe_stack_space): Likewise.
(aarch64_expand_epilogue): Likewise.
(aarch64_override_options_internal): Likewise.
* config/alpha/alpha.c (alpha_option_override): Likewise.
* config/arm/arm.c (arm_option_override): Likewise.
(arm_valid_target_attribute_p): Likewise.
* config/i386/i386-options.c (ix86_option_override_internal): Likewise.
* config/i386/i386.c (get_probe_interval): Likewise.
(ix86_adjust_stack_and_probe_stack_clash): Likewise.
(ix86_max_noce_ifcvt_seq_cost): Likewise.
* config/ia64/ia64.c (ia64_adjust_cost): Likewise.
* config/rs6000/rs6000-logue.c (get_stack_clash_protection_probe_interval): Likewise.
(get_stack_clash_protection_guard_size): Likewise.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Likewise.
* config/s390/s390.c (allocate_stack_space): Likewise.
(s390_emit_prologue): Likewise.
(s390_option_override_internal): Likewise.
* config/sparc/sparc.c (sparc_option_override): Likewise.
* config/visium/visium.c (visium_option_override): Likewise.
* coverage.c (get_coverage_counts): Likewise.
(coverage_compute_profile_id): Likewise.
(coverage_begin_function): Likewise.
(coverage_end_function): Likewise.
* cse.c (cse_find_path): Likewise.
(cse_extended_basic_block): Likewise.
(cse_main): Likewise.
* cselib.c (cselib_invalidate_mem): Likewise.
* dse.c (dse_step1): Likewise.
* emit-rtl.c (set_new_first_and_last_insn): Likewise.
(get_max_insn_count): Likewise.
(make_debug_insn_raw): Likewise.
(init_emit): Likewise.
* explow.c (compute_stack_clash_protection_loop_data): Likewise.
* final.c (compute_alignments): Likewise.
* fold-const.c (fold_range_test): Likewise.
(fold_truth_andor): Likewise.
(tree_single_nonnegative_warnv_p): Likewise.
(integer_valued_real_single_p): Likewise.
* gcse.c (want_to_gcse_p): Likewise.
(prune_insertions_deletions): Likewise.
(hoist_code): Likewise.
(gcse_or_cprop_is_too_expensive): Likewise.
* ggc-common.c: Likewise.
* ggc-page.c (ggc_collect): Likewise.
* gimple-loop-interchange.cc (MAX_NUM_STMT): Likewise.
(MAX_DATAREFS): Likewise.
(OUTER_STRIDE_RATIO): Likewise.
* gimple-loop-jam.c (tree_loop_unroll_and_jam): Likewise.
* gimple-loop-versioning.cc (loop_versioning::max_insns_for_loop): Likewise.
* gimple-ssa-split-paths.c (is_feasible_trace): Likewise.
* gimple-ssa-store-merging.c (imm_store_chain_info::try_coalesce_bswap): Likewise.
(imm_store_chain_info::coalesce_immediate_stores): Likewise.
(imm_store_chain_info::output_merged_store): Likewise.
(pass_store_merging::process_store): Likewise.
* gimple-ssa-strength-reduction.c (find_basis_for_base_expr): Likewise.
* graphite-isl-ast-to-gimple.c (class translate_isl_ast_to_gimple): Likewise.
(scop_to_isl_ast): Likewise.
* graphite-optimize-isl.c (get_schedule_for_node_st): Likewise.
(optimize_isl): Likewise.
* graphite-scop-detection.c (build_scops): Likewise.
* haifa-sched.c (set_modulo_params): Likewise.
(rank_for_schedule): Likewise.
(model_add_to_worklist): Likewise.
(model_promote_insn): Likewise.
(model_choose_insn): Likewise.
(queue_to_ready): Likewise.
(autopref_multipass_dfa_lookahead_guard): Likewise.
(schedule_block): Likewise.
(sched_init): Likewise.
* hsa-gen.c (init_prologue): Likewise.
* ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Likewise.
(cond_move_process_if_block): Likewise.
* ipa-cp.c (ipcp_lattice::add_value): Likewise.
(merge_agg_lats_step): Likewise.
(devirtualization_time_bonus): Likewise.
(hint_time_bonus): Likewise.
(incorporate_penalties): Likewise.
(good_cloning_opportunity_p): Likewise.
(ipcp_propagate_stage): Likewise.
* ipa-fnsummary.c (decompose_param_expr): Likewise.
(set_switch_stmt_execution_predicate): Likewise.
(analyze_function_body): Likewise.
(compute_fn_summary): Likewise.
* ipa-inline-analysis.c (estimate_growth): Likewise.
* ipa-inline.c (caller_growth_limits): Likewise.
(inline_insns_single): Likewise.
(inline_insns_auto): Likewise.
(can_inline_edge_by_limits_p): Likewise.
(want_early_inline_function_p): Likewise.
(big_speedup_p): Likewise.
(want_inline_small_function_p): Likewise.
(want_inline_self_recursive_call_p): Likewise.
(edge_badness): Likewise.
(recursive_inlining): Likewise.
(compute_max_insns): Likewise.
(early_inliner): Likewise.
* ipa-polymorphic-call.c (csftc_abort_walking_p): Likewise.
* ipa-profile.c (ipa_profile): Likewise.
* ipa-prop.c (determine_known_aggregate_parts): Likewise.
(ipa_analyze_node): Likewise.
(ipcp_transform_function): Likewise.
* ipa-split.c (consider_split): Likewise.
* ipa-sra.c (allocate_access): Likewise.
(process_scan_results): Likewise.
(ipa_sra_summarize_function): Likewise.
(pull_accesses_from_callee): Likewise.
* ira-build.c (loop_compare_func): Likewise.
(mark_loops_for_removal): Likewise.
* ira-conflicts.c (build_conflict_bit_table): Likewise.
* loop-doloop.c (doloop_optimize): Likewise.
* loop-invariant.c (gain_for_invariant): Likewise.
(move_loop_invariants): Likewise.
* loop-unroll.c (decide_unroll_constant_iterations): Likewise.
(decide_unroll_runtime_iterations): Likewise.
(decide_unroll_stupid): Likewise.
(expand_var_during_unrolling): Likewise.
* lra-assigns.c (spill_for): Likewise.
* lra-constraints.c (EBB_PROBABILITY_CUTOFF): Likewise.
* modulo-sched.c (sms_schedule): Likewise.
(DFA_HISTORY): Likewise.
* opts.c (default_options_optimization): Likewise.
(finish_options): Likewise.
(common_handle_option): Likewise.
* postreload-gcse.c (eliminate_partially_redundant_load): Likewise.
(if): Likewise.
* predict.c (get_hot_bb_threshold): Likewise.
(maybe_hot_count_p): Likewise.
(probably_never_executed): Likewise.
(predictable_edge_p): Likewise.
(predict_loops): Likewise.
(expr_expected_value_1): Likewise.
(tree_predict_by_opcode): Likewise.
(handle_missing_profiles): Likewise.
* reload.c (find_equiv_reg): Likewise.
* reorg.c (redundant_insn): Likewise.
* resource.c (mark_target_live_regs): Likewise.
(incr_ticks_for_insn): Likewise.
* sanopt.c (pass_sanopt::execute): Likewise.
* sched-deps.c (sched_analyze_1): Likewise.
(sched_analyze_2): Likewise.
(sched_analyze_insn): Likewise.
(deps_analyze_insn): Likewise.
* sched-ebb.c (schedule_ebbs): Likewise.
* sched-rgn.c (find_single_block_region): Likewise.
(too_large): Likewise.
(haifa_find_rgns): Likewise.
(extend_rgns): Likewise.
(new_ready): Likewise.
(schedule_region): Likewise.
(sched_rgn_init): Likewise.
* sel-sched-ir.c (make_region_from_loop): Likewise.
* sel-sched-ir.h (MAX_WS): Likewise.
* sel-sched.c (process_pipelined_exprs): Likewise.
(sel_setup_region_sched_flags): Likewise.
* shrink-wrap.c (try_shrink_wrapping): Likewise.
* targhooks.c (default_max_noce_ifcvt_seq_cost): Likewise.
* toplev.c (print_version): Likewise.
(process_options): Likewise.
* tracer.c (tail_duplicate): Likewise.
* trans-mem.c (tm_log_add): Likewise.
* tree-chrec.c (chrec_fold_plus_1): Likewise.
* tree-data-ref.c (split_constant_offset): Likewise.
(compute_all_dependences): Likewise.
* tree-if-conv.c (MAX_PHI_ARG_NUM): Likewise.
* tree-inline.c (remap_gimple_stmt): Likewise.
* tree-loop-distribution.c (MAX_DATAREFS_NUM): Likewise.
* tree-parloops.c (MIN_PER_THREAD): Likewise.
(create_parallel_loop): Likewise.
* tree-predcom.c (determine_unroll_factor): Likewise.
* tree-scalar-evolution.c (instantiate_scev_r): Likewise.
* tree-sra.c (analyze_all_variable_accesses): Likewise.
* tree-ssa-ccp.c (fold_builtin_alloca_with_align): Likewise.
* tree-ssa-dse.c (setup_live_bytes_from_ref): Likewise.
(dse_optimize_redundant_stores): Likewise.
(dse_classify_store): Likewise.
* tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise.
* tree-ssa-loop-ch.c (ch_base::copy_headers): Likewise.
* tree-ssa-loop-im.c (LIM_EXPENSIVE): Likewise.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Likewise.
(try_peel_loop): Likewise.
(tree_unroll_loops_completely): Likewise.
* tree-ssa-loop-ivopts.c (avg_loop_niter): Likewise.
(CONSIDER_ALL_CANDIDATES_BOUND): Likewise.
(MAX_CONSIDERED_GROUPS): Likewise.
(ALWAYS_PRUNE_CAND_SET_BOUND): Likewise.
* tree-ssa-loop-manip.c (can_unroll_loop_p): Likewise.
* tree-ssa-loop-niter.c (MAX_ITERATIONS_TO_TRACK): Likewise.
* tree-ssa-loop-prefetch.c (PREFETCH_BLOCK): Likewise.
(L1_CACHE_SIZE_BYTES): Likewise.
(L2_CACHE_SIZE_BYTES): Likewise.
(should_issue_prefetch_p): Likewise.
(schedule_prefetches): Likewise.
(determine_unroll_factor): Likewise.
(volume_of_references): Likewise.
(add_subscript_strides): Likewise.
(self_reuse_distance): Likewise.
(mem_ref_count_reasonable_p): Likewise.
(insn_to_prefetch_ratio_too_small_p): Likewise.
(loop_prefetch_arrays): Likewise.
(tree_ssa_prefetch_arrays): Likewise.
* tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Likewise.
* tree-ssa-math-opts.c (gimple_expand_builtin_pow): Likewise.
(convert_mult_to_fma): Likewise.
(math_opts_dom_walker::after_dom_children): Likewise.
* tree-ssa-phiopt.c (cond_if_else_store_replacement): Likewise.
(hoist_adjacent_loads): Likewise.
(gate_hoist_loads): Likewise.
* tree-ssa-pre.c (translate_vuse_through_block): Likewise.
(compute_partial_antic_aux): Likewise.
* tree-ssa-reassoc.c (get_reassociation_width): Likewise.
* tree-ssa-sccvn.c (vn_reference_lookup_pieces): Likewise.
(vn_reference_lookup): Likewise.
(do_rpo_vn): Likewise.
* tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr): Likewise.
* tree-ssa-sink.c (select_best_block): Likewise.
* tree-ssa-strlen.c (new_stridx): Likewise.
(new_addr_stridx): Likewise.
(get_range_strlen_dynamic): Likewise.
(class ssa_name_limit_t): Likewise.
* tree-ssa-structalias.c (push_fields_onto_fieldstack): Likewise.
(create_variable_info_for_1): Likewise.
(init_alias_vars): Likewise.
* tree-ssa-tail-merge.c (find_clusters_1): Likewise.
(tail_merge_optimize): Likewise.
* tree-ssa-threadbackward.c (thread_jumps::profitable_jump_thread_path): Likewise.
(thread_jumps::fsm_find_control_statement_thread_paths): Likewise.
(thread_jumps::find_jump_threads_backwards): Likewise.
* tree-ssa-threadedge.c (record_temporary_equivalences_from_stmts_at_dest): Likewise.
* tree-ssa-uninit.c (compute_control_dep_chain): Likewise.
* tree-switch-conversion.c (switch_conversion::check_range): Likewise.
(jump_table_cluster::can_be_handled): Likewise.
* tree-switch-conversion.h (jump_table_cluster::case_values_threshold): Likewise.
(SWITCH_CONVERSION_BRANCH_RATIO): Likewise.
(param_switch_conversion_branch_ratio): Likewise.
* tree-vect-data-refs.c (vect_mark_for_runtime_alias_test): Likewise.
(vect_enhance_data_refs_alignment): Likewise.
(vect_prune_runtime_alias_test_list): Likewise.
* tree-vect-loop.c (vect_analyze_loop_costing): Likewise.
(vect_get_datarefs_in_loop): Likewise.
(vect_analyze_loop): Likewise.
* tree-vect-slp.c (vect_slp_bb): Likewise.
* tree-vectorizer.h: Likewise.
* tree-vrp.c (find_switch_asserts): Likewise.
(vrp_prop::check_mem_ref): Likewise.
* tree.c (wide_int_to_tree_1): Likewise.
(cache_integer_cst): Likewise.
* var-tracking.c (EXPR_USE_DEPTH): Likewise.
(reverse_op): Likewise.
(vt_find_locations): Likewise.
2019-11-12  Martin Liska  <mliska@suse.cz>

* gimple-parser.c (c_parser_parse_gimple_body): Replace old parameter syntax
with the new one, include opts.h if needed.  Use SET_OPTION_IF_UNSET
macro.
2019-11-12  Martin Liska  <mliska@suse.cz>

* name-lookup.c (namespace_hints::namespace_hints): Replace old parameter syntax
with the new one, include opts.h if needed.  Use SET_OPTION_IF_UNSET
macro.
* typeck.c (comptypes): Likewise.
2019-11-12  Martin Liska  <mliska@suse.cz>

* lto-partition.c (lto_balanced_map): Replace old parameter syntax
with the new one, include opts.h if needed.  Use SET_OPTION_IF_UNSET
macro.
* lto.c (do_whole_program_analysis): Likewise.

From-SVN: r278085

Include new generated gcc/params.opt file.

2019-11-12  Martin Liska  <mliska@suse.cz>

* Makefile.in: Include params.opt.
* flag-types.h (enum parloops_schedule_type): Add
parloops_schedule_type used in params.opt.
* params.opt: New file.

From-SVN: r278084

Param to options conversion.

2019-11-12  Martin Liska  <mliska@suse.cz>

* common.opt: Remove --param and --param= options.
* opt-functions.awk: Mark CL_PARAMS for options
that have Param keyword.
* opts-common.c (decode_cmdline_options_to_array):
Replace --param key=value with --param=key=value.
* opts.c (print_filtered_help): Remove special
printing of params.
(print_specific_help): Update title for params.
(common_handle_option): Do not handle OPT__param.
opts.h (SET_OPTION_IF_UNSET): New macro.
* doc/options.texi: Document Param keyword.

From-SVN: r278083

Add OpenACC 2.6 `serial' construct support

    The `serial' construct (cf. section 2.5.3 of the OpenACC 2.6 standard)
    is equivalent to a `parallel' construct with clauses `num_gangs(1)
    num_workers(1) vector_length(1)' implied.
    These clauses are therefore not supported with the `serial'
    construct. All the remaining clauses accepted with `parallel' are also
    accepted with `serial'.

    The `serial' construct is implemented like `parallel', except for
    hardcoding dimensions rather than taking them from the relevant
    clauses, in `expand_omp_target'.

    Separate codes are used to denote the `serial' construct throughout the
    middle end, even though the mapping of `serial' to an equivalent
    `parallel' construct could have been done in the individual language
    frontends. In particular, this allows to distinguish between compute
    constructs in warnings, error messages, dumps etc.

    2019-11-12  Maciej W. Rozycki  <macro@codesourcery.com>
                Tobias Burnus  <tobias@codesourcery.com>
                Frederik Harwath  <frederik@codesourcery.com>
                Thomas Schwinge  <thomas@codesourcery.com>

    gcc/
    * gimple.h (gf_mask): Add GF_OMP_TARGET_KIND_OACC_SERIAL
    enumeration constant.
    (is_gimple_omp_oacc): Handle GF_OMP_TARGET_KIND_OACC_SERIAL.
    (is_gimple_omp_offloaded): Likewise.
    * gimplify.c (omp_region_type): Add ORT_ACC_SERIAL enumeration
    constant.  Adjust the value of ORT_NONE accordingly.
    (is_gimple_stmt): Handle OACC_SERIAL.
    (oacc_default_clause): Handle ORT_ACC_SERIAL.
    (gomp_needs_data_present): Likewise.
    (gimplify_adjust_omp_clauses): Likewise.
    (gimplify_omp_workshare): Handle OACC_SERIAL.
    (gimplify_expr): Likewise.
    * omp-expand.c (expand_omp_target):
    Handle GF_OMP_TARGET_KIND_OACC_SERIAL.
    (build_omp_regions_1, omp_make_gimple_edges): Likewise.
    * omp-low.c (is_oacc_parallel): Rename function to...
    (is_oacc_parallel_or_serial): ... this.
    Handle GF_OMP_TARGET_KIND_OACC_SERIAL.
    (scan_sharing_clauses): Adjust accordingly.
    (scan_omp_for): Likewise.
    (lower_oacc_head_mark): Likewise.
    (convert_from_firstprivate_int): Likewise.
    (lower_omp_target): Likewise.
    (check_omp_nesting_restrictions): Handle
    GF_OMP_TARGET_KIND_OACC_SERIAL.
    (lower_oacc_reductions): Likewise.
    (lower_omp_target): Likewise.
    * tree.def (OACC_SERIAL): New tree code.
    * tree-pretty-print.c (dump_generic_node): Handle OACC_SERIAL.

    * doc/generic.texi (OpenACC): Document OACC_SERIAL.

    gcc/c-family/
    * c-pragma.h (pragma_kind): Add PRAGMA_OACC_SERIAL enumeration
    constant.
    * c-pragma.c (oacc_pragmas): Add "serial" entry.

    gcc/c/
    * c-parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
    (c_parser_oacc_kernels_parallel): Rename function to...
    (c_parser_oacc_compute): ... this.  Handle PRAGMA_OACC_SERIAL.
    (c_parser_omp_construct): Update accordingly.

    gcc/cp/
    * constexpr.c (potential_constant_expression_1): Handle
    OACC_SERIAL.
    * parser.c (OACC_SERIAL_CLAUSE_MASK): New macro.
    (cp_parser_oacc_kernels_parallel): Rename function to...
    (cp_parser_oacc_compute): ... this.  Handle PRAGMA_OACC_SERIAL.
    (cp_parser_omp_construct): Update accordingly.
    (cp_parser_pragma): Handle PRAGMA_OACC_SERIAL.  Fix alphabetic
    order.
    * pt.c (tsubst_expr): Handle OACC_SERIAL.

    gcc/fortran/
    * gfortran.h (gfc_statement): Add ST_OACC_SERIAL_LOOP,
    ST_OACC_END_SERIAL_LOOP, ST_OACC_SERIAL and ST_OACC_END_SERIAL
    enumeration constants.
    (gfc_exec_op): Add EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL
    enumeration constants.
    * match.h (gfc_match_oacc_serial): New prototype.
    (gfc_match_oacc_serial_loop): Likewise.
    * dump-parse-tree.c (show_omp_node, show_code_node): Handle
    EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL.
    * match.c (match_exit_cycle): Handle EXEC_OACC_SERIAL_LOOP.
    * openmp.c (OACC_SERIAL_CLAUSES): New macro.
    (gfc_match_oacc_serial_loop): New function.
    (gfc_match_oacc_serial): Likewise.
    (oacc_is_loop): Handle EXEC_OACC_SERIAL_LOOP.
    (resolve_omp_clauses): Handle EXEC_OACC_SERIAL.
    (oacc_code_to_statement): Handle EXEC_OACC_SERIAL and
    EXEC_OACC_SERIAL_LOOP.
    (gfc_resolve_oacc_directive): Likewise.
    * parse.c (decode_oacc_directive) <'s'>: Add case for "serial"
    and "serial loop".
    (next_statement): Handle ST_OACC_SERIAL_LOOP and ST_OACC_SERIAL.
    (gfc_ascii_statement): Likewise.  Handle ST_OACC_END_SERIAL_LOOP
    and ST_OACC_END_SERIAL.
    (parse_oacc_structured_block): Handle ST_OACC_SERIAL.
    (parse_oacc_loop): Handle ST_OACC_SERIAL_LOOP and
    ST_OACC_END_SERIAL_LOOP.
    (parse_executable): Handle ST_OACC_SERIAL_LOOP and
    ST_OACC_SERIAL.
    (is_oacc): Handle EXEC_OACC_SERIAL_LOOP and EXEC_OACC_SERIAL.
    * resolve.c (gfc_resolve_blocks, gfc_resolve_code): Likewise.
    * st.c (gfc_free_statement): Likewise.
    * trans-openmp.c (gfc_trans_oacc_construct): Handle
    EXEC_OACC_SERIAL.
    (gfc_trans_oacc_combined_directive): Handle
    EXEC_OACC_SERIAL_LOOP.
    (gfc_trans_oacc_directive): Handle EXEC_OACC_SERIAL_LOOP and
    EXEC_OACC_SERIAL.
    * trans.c (trans_code): Likewise.

    gcc/testsuite/
    * c-c++-common/goacc/parallel-dims.c: New test.
    * gfortran.dg/goacc/parallel-dims.f90: New test.

    libgomp/
    * testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: New test.
    * testsuite/libgomp.oacc-fortran/parallel-dims-aux.c: New test.
    * testsuite/libgomp.oacc-fortran/parallel-dims.f89: New test.
    * testsuite/libgomp.oacc-fortran/parallel-dims-2.f90: New test.

Reviewed-by: Thomas Schwinge <thomas@codesourcery.com>
Co-Authored-By: Frederik Harwath <frederik@codesourcery.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
Co-Authored-By: Tobias Burnus <tobias@codesourcery.com>
From-SVN: r278082

re PR target/92449 (ICE in extract_insn, at recog.c:2311)

PR target/92449
* tree-complex.c (expand_complex_multiplication): If !HONOR_NANS,
don't emit UNORDERED_EXPR guarded libcall.  Formatting fixes.

From-SVN: r278081

re PR tree-optimization/92452 (ICE in vrp_prop::check_array_ref at tree-vrp.c:4153)

PR tree-optimization/92452
* tree-vrp.c (vrp_prop::check_array_ref): If TRUNC_DIV_EXPR folds
into NULL_TREE, set up_bound to NULL_TREE instead of computing
MINUS_EXPR on it.

* c-c++-common/pr92452.c: New test.

From-SVN: r278080

re PR tree-optimization/92347 (ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1537)

2019-11-11  Andre Vieira  <andre.simoesdiasvieira@arm.com>

        PR tree-optimization/92347
        * tree-vect-loop.c (vect_transform_loop): Don't overwrite epilogues
        safelen with 0.

        * gcc.dg/vect/pr92347.c: New test.

From-SVN: r278079