[Ada] Fix repeated words and typos in doc and comments

2019-12-12  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

* libgnat/g-altive.ads: Fix typo in comment.
* bindo-graphs.adb: Fix repeated words in comment.
* exp_ch4.adb: Likewise.
* exp_ch5.adb: Likewise.
* exp_ch7.adb: Likewise.
* exp_pakd.adb: Likewise.
* exp_unst.adb: Likewise.
* exp_util.adb: Likewise.
* freeze.adb: Likewise.
* inline.adb: Likewise.
* layout.adb: Likewise.
* sem_ch12.adb: Likewise.
* sem_ch13.adb: Likewise.
* sem_ch4.adb: Likewise.
* sem_ch9.adb: Likewise.
* sem_elab.adb: Likewise.
* doc/gnat_ugn/gnat_and_program_execution.rst: Fix repeated
words in user documentation.
* gnat_ugn.texi: Regenerate.

From-SVN: r279294

[Ada] Fix wrong value of 'Size for slices of bit-packed arrays (2)

2019-12-12  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* exp_attr.adb (Expand_Size_Attribute): Look directly at the
prefix to detect the bit-packed slices.  Apply the checks last
in case the attribute needs to be processed by the back-end.
* exp_ch4.adb (Expand_N_Slice): Do not create a temporary for
a prefix of the Size attribute.

From-SVN: r279293

[Ada] Implement AI12-0036 (a new legality check for instantiations)

2019-12-12  Steve Baird  <baird@adacore.com>

gcc/ada/

* sem_ch12.adb
(Instantiate_Type.Validate_Derived_Type_Instance): Implement the
legality check of AI12-0036

From-SVN: r279292

[Ada] Spurious visibility error on subunit with optimization

2019-12-12  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch10.adb (Analyze_Subunit): Fix spurious visibility error
on subunit with optimization.

From-SVN: r279291

[Ada] Define __gnat_personality_v0 for SEH

2019-12-12  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* raise-gcc.c (__gnat_personality_v0): Define for SEH.

From-SVN: r279290

[Ada] Handling up-level references in protected entries and freeze nodes

2019-12-12  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* exp_ch9.adb (Build_Protected_Entry): Analyze the block created
to hold the declarations and statements of the protected entry
body right after it's created, and then call Reset_Scopes_To on
that block to reset the Scope of nested entities to the block
scope.
(Reset_Scope): Add handling for N_Freeze_Entity nodes, calling
Reset_Scopes recursively on the Actions of such nodes. Also, for
subprogram bodies that are encountered that might not have a
separate declaration (such as type init procedures), reset the
Scope of the subprogram's entity.

From-SVN: r279289

[Ada] Missing error on incorrect use of Result attribute

2019-12-12  Justin Squirek  <squirek@adacore.com>

gcc/ada/

* sem_attr.adb (Analyze_Attribute): Add error message for
invalid usage of Attribute_Result.

From-SVN: r279288

[Ada] Crash on Descriptor_Size attribute

2019-12-12  Bob Duff  <duff@adacore.com>

gcc/ada/

* sem_attr.adb (Eval_Attribute): Never mark T'Descriptor_Size as
static, even if T is a static subtype, because otherwise we will
request the value of the attribute, which will crash because we
have not evaluated it.

From-SVN: r279287

[Ada] Missing length check on private type with unknown discriminants

2019-12-12  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* exp_ch5.adb (Expand_N_Assognment_Statement): Extend the
processing involving private types with unknown discriminants to
handle the case where the full view of the type is an
unconstrained array type.

From-SVN: r279286

[Ada] Compiler crash on prefix call in generic body

2019-12-12  Bob Duff  <duff@adacore.com>

gcc/ada/

* sem_ch4.adb (Transform_Object_Operation): Deal properly with
prefix notation in instances.

From-SVN: r279285

[Ada] Use correct subtype for call to Last in formal vectors

2019-12-12  Claire Dross  <dross@adacore.com>

gcc/ada/

* libgnat/a-cofove.adb, libgnat/a-cfinve.adb (Find_Index): Use
Extended_Index for call to Last.

From-SVN: r279284

[Ada] Fix a number of typos, plus minor reformatting

2019-12-12  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

* sem_ch3.adb, sem_util.adb: Minor reformatting.

From-SVN: r279283

[Ada] Update gnatmetric documentation for average lengths

2019-12-12  Bob Duff  <duff@adacore.com>

gcc/ada/

* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatmetric
documentation for average lengths

From-SVN: r279282

[Ada] Constraint is ignored on constrained access record component

2019-12-12  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

* sem_ch3.adb (Constrain_Access): Remove obsolete comments and
warning concerning component types of an access type whose
designated type is a constrained record type. (Such constraints
were previously ignored). Set scope of itype for component to
the scope of the enclosing record.
* sem_ch4.adb: Remove call to Set_Ekind.
* sem_util.adb (Build_Actual_Subtype_Of_Component): Handle
components whose type is an access to a constrained
discriminant, where the constraints may be given by the
discriminants of the enclosing type. New subprogram
Build_Access_Record_Constraint.

gcc/testsuite/

* gnat.dg/warn24.adb: Remove expected warning.

From-SVN: r279281

[Ada] Crash on use of Loop_Entry, Result, and Old as actuals

2019-12-12  Justin Squirek  <squirek@adacore.com>

gcc/ada/

* exp_ch6.adb (Expand_Call_Helper): Added null case for
'Loop_Entry, 'Old, and 'Result when calculating whether to
create extra accessibility parameters.
* sem_util.adb (Dynamic_Accessibility_Level): Added null case
for 'Loop_Entry, 'Old, and 'Result when  calculating
accessibility level based on access-valued attributes.  Also
added special handling for uses of 'Loop_Entry when used in its
indexed component form.

From-SVN: r279280

[Ada] Remove references to VMS

2019-12-12  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

* raise-gcc.c: Remove references to VMS

From-SVN: r279279

[Ada] Mark Ada subprograms and variables referenced from gigi

2019-12-12  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

* atree.ads, comperr.ads, debug.ads, einfo.ads, elists.ads,
err_vars.ads, errout.ads, exp_ch11.ads, exp_code.ads,
exp_dbug.ads, exp_tss.ads, exp_util.ads, lib.ads, namet.ads,
nlists.ads, opt.ads, repinfo.ads, restrict.ads, scos.ads,
sem_aggr.ads, sem_aux.ads, sem_eval.ads, sem_util.ads,
sinfo.ads, sinput.ads, stringt.ads, targparm.ads, types.ads,
urealp.ads warnsw.ads: Add WARNING line(s) in commentary.
* atree.h, elists.h, namet.h, nlists.h, repinfo.h, scos.h,
stringt.h, types.h, uintp.h, urealp.h: Tidy up.
* fe.h: Likewise.  Document WARNING mark.

From-SVN: r279278

[Ada] Improve end of command line arguments detection

2019-12-12  Dmitriy Anisimkov  <anisimko@adacore.com>

gcc/ada/

* libgnat/g-comlin.ads (Get_Argument): New routine similar to
original Get_Argument but with one more out parameter
End_Of_Arguments.
(Get_Arguments): Comment improved.
* libgnat/g-comlin.adb (Get_Argument): Implementation taken from
original Get_Argument and improved.
(Get_Argument): Calls new routine Get_Argument with additional
parameter.

From-SVN: r279277

[Ada] Remove implicit anonymous access conversion in testcase

2019-12-12  Pierre-Marie de Rodat  <derodat@adacore.com>

gcc/testsuite/

* gnat.dg/subp_inst_pkg.adb: Remove implicit anonymous access
conversion.

From-SVN: r279276

[ARC] generate signaling FDCMPF for hard float comparisons

PR 92846:
ARC gcc generates FDCMP instructions which raises Invalid operation for
signaling NaN only. This causes glibc iseqsig() primitives to fail (in
the current ongoing glibc port to ARC)

So break up the hard float compares into tw categories and for unordered
compares generate the FDCMPF instructions which raised exception for
either NaNs.

With this fix testsuite/gcc.dg/torture/pr52451.c passes for ARC.

Also no regressions for the glibc math testsuite, only 6 additional
passes for test*iseqsig

gcc/
xxxx-xx-xx  Vineet Gupta  <vgupta@synopsys.com>

* config/arc/arc-modes.def (CC_FPUE): New Mode CC_FPUE which
helps codegen generate exceptions even for quiet NaN.
* config/arc/arc.c (arc_init_reg_tables): Handle New CC_FPUE mode.
(get_arc_condition_code): Likewise.
(arc_select_cc_mode): LT, LE, GT, GE to use the New CC_FPUE mode.
* config/arc/arc.h (REVERSE_CONDITION): Handle New CC_FPUE mode.
* config/arc/predicates.md (proper_comparison_operator): Likewise.
* config/arc/fpu.md (cmpsf_fpu_trap): New Pattern for CC_FPUE.
(cmpdf_fpu_trap): Likewise.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
From-SVN: r279274

[ARC] Use hardware support for double-precision compare instructions.

Allow the compiler to use the double-precision compare instructions.

xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (iterator SDF): Check TARGET_FP_DP_BASE.
(cstoredi4): Use TARGET_HARD_FLOAT.

From-SVN: r279273

libstdc++: Fix tr1 definition ambiguity in versioned namespace

* include/tr1/cctype: Add _GLIBCXX_BEGIN_VERSION_NAMESPACE and
_GLIBCXX_END_VERSION_NAMESPACE.
* include/tr1/cfenv: Likewise.
* include/tr1/cinttypes: Likewise.
* include/tr1/cstdint: Likewise.
* include/tr1/cstdio: Likewise.
* include/tr1/cstdlib: Likewise.
* include/tr1/cwchar: Likewise.
* include/tr1/cwctype: Likewise.

From-SVN: r279272

libstdc++: Qualify isdigit call to fix versioned namespace build.

* src/c++11/random.cc: Include <cctype>.
(random_devise::_M_init_pretr1): Qualify isdigit call.

From-SVN: r279271

Daily bump.

From-SVN: r279270

opts.c (default_options_table): Move -ftree-loop-distribute-patterns entry from -O3 or later section to -O2 or...

* opts.c (default_options_table): Move -ftree-loop-distribute-patterns
entry from -O3 or later section to -O2 or later section.
* doc/invoke.texi (-ftree-loop-distribute-patterns): Mention the
option is enabled by default at -O2+ rather than just at -O3.

From-SVN: r279267

re PR fortran/92899 ([OpenMP] ICE in gfc_trans_omp_atomic, at fortran/trans-openmp.c:3769)

PR fortran/92899
* trans-openmp.c (gfc_trans_omp_atomic): For GFC_OMP_ATOMIC_SWAP,
do look through conversion on expr2 if any.

* testsuite/libgomp.fortran/atomic1.f90: New test.

From-SVN: r279266

re PR target/92723 (ICE in expand_shift_1, at expmed.c:2635)

PR target/92723
* tree-vect-patterns.c (vect_recog_rotate_pattern): If dt is not
vect_internal_def, use oprnd1 as is, without trying to cast it.
Formatting fix.

* gcc.dg/vect/pr92723.c: New test.

From-SVN: r279265

configure.ac: Factor out common cases for compare_exclusions.

2019-12-11  Matthias Klose  <doko@ubuntu.com>

        * configure.ac: Factor out common cases for compare_exclusions.
        * configure: Regenerate.

From-SVN: r279250

builtins.c (compute_objsize): Add an argument and set it to offset into destination.

gcc/ChangeLog:

* builtins.c (compute_objsize): Add an argument and set it to offset
into destination.
* builtins.h (compute_objsize): Add an argument.
* tree-object-size.c (addr_object_size): Add an argument and set it
to offset into destination.
(compute_builtin_object_size): Same.
* tree-object-size.h (compute_builtin_object_size): Add an argument.
* tree-ssa-strlen.c (get_addr_stridx): Add an argument and set it
to offset into destination.
(maybe_warn_overflow): New function.
(handle_store): Call maybe_warn_overflow to issue warnings.

gcc/testsuite/ChangeLog:

* c-c++-common/Wstringop-overflow-2.c: Adjust text of expected messages.
* g++.dg/warn/Wstringop-overflow-3.C: Same.
* gcc.dg/Wstringop-overflow-17.c: Same.

From-SVN: r279248

re PR fortran/92897 ([Coarray] ICE in gfc_set_array_spec, at fortran/array.c:864)

2019-12-11 Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/92897
* array.c (gfc_set_array_spec):  Remove invalid assert() triggered
by invalid Fortran code.

2019-12-11 Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/92897
* gfortran.dg/pr92897.f90: New test.

From-SVN: r279247

MSP430: Add -fno-exceptions multilib

ChangeLog:

2019-12-11  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

* config-ml.in (msp430-*-*): Support --disable-no-exceptions configure
flag.

gcc/ChangeLog:

2019-12-11  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

* config/msp430/msp430.h (STARTFILE_SPEC) [!fexceptions]: Use
crtbegin_no_eh.o if building for the C language.
[fno-exceptions]: Use crtbegin_no_eh.o if building for any language
except C.
(ENDFILE_SPEC) [!fexceptions]: Use crtend_no_eh.o if building for
the C language.
[fno-exceptions]: Use crtend_no_eh.o if building for any language
except C.
* config/msp430/t-msp430: Add -fno-exceptions multilib.
* doc/install.texi: Document --disable-no-exceptions multilib configure
option.
* doc/sourcebuild.texi: Document exceptions_enabled effective target.

gcc/testsuite/ChangeLog:

2019-12-11  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

* lib/gcc-dg.exp: Add dg-prune messages for when exception handling is
disabled.
* lib/target-supports.exp (check_effective_target_exceptions_enabled):
New.

libgcc/ChangeLog:

2019-12-11  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

* config.host: Add crt{begin,end}_no_eh.o to "extra_parts".
* config.host (msp430*-*-elf): Add crt{begin,end}_no_eh.o to
"extra_parts".

From-SVN: r279246

Introduce pretty_printer::clone vfunc

This patch provides a way to clone a pretty_printer.

This is needed so that we can capture text in a label_text and make
layout decisions based on it, using the policy of global_dc's printer,
whilst within a call to diagnostic_show_locus.  We can't print with
the pretty_printer itself within a call to diagnostic_show_locus since
it has partly-buffered content.

gcc/c-family/ChangeLog:
* c-pretty-print.c (c_pretty_printer::clone): New vfunc
implementation.
* c-pretty-print.h (c_pretty_printer::clone): New vfunc decl.

gcc/cp/ChangeLog:
* cxx-pretty-print.c (cxx_pretty_printer::clone): New vfunc
implementation.
* cxx-pretty-print.h (cxx_pretty_printer::clone): New vfunc decl.
* error.c (cxx_format_postprocessor::clone): New vfunc.

gcc/ChangeLog:
* pretty-print.c (pretty_printer::pretty_printer): New copy-ctor.
(pretty_printer::clone): New vfunc implementation.
* pretty-print.h (format_postprocessor::clone): New pure vfunc
decl.
(pretty_printer::pretty_printer): New copy-ctor decl.
(pretty_printer::clone): New vfunc decl.

From-SVN: r279244

libgcc: Declare __dso_handle only if DEFAULT_USE_CXA_ATEXIT is true

2019-12-11  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

* crtstuff.c: Declare __dso_handle only if DEFAULT_USE_CXA_ATEXIT is
true.

From-SVN: r279243

function-tests.c: expose selftest::make_fndecl for use elsewhere

This is used by new selftests in the analyzer patch kit.

gcc/ChangeLog:
* function-tests.c (selftest::make_fndecl): Make non-static.
* selftest.h (selftest::make_fndecl): New decl.

From-SVN: r279242

re PR c++/92869 (C++17 wrongly reports aggregate type as not-aggregate (when explicitly defaulted ctors are added))

PR c++/92869
* class.c (finish_struct): For C++17 and earlier, check
type_has_user_provided_or_explicit_constructor rather than
TYPE_HAS_USER_CONSTRUCTOR whether to set CLASSTYPE_NON_AGGREGATE.

* g++.dg/cpp0x/aggr3.C: New test.

From-SVN: r279241

PR c++/92878 - Parenthesized init of aggregates in new-expression.

Ville pointed out that our paren init of aggregates doesn't work for

  auto a = new A(1, 2, 3);

and I think it should:

A new-expression that creates an object of type T initializes that object
as follows:
...
-- Otherwise, the new-initializer is interpreted according to the
   initialization rules of [dcl.init] for direct-initialization.

so I think it follows that we should perform dcl.init#17.6.2.2.

This doesn't work with new[]; we have:
  error ("parenthesized initializer in array new");

* init.c (build_new_1): Handle parenthesized initialization of
aggregates in new-expression.

* g++.dg/cpp2a/paren-init20.C: New test.

From-SVN: r279240

* g++.dg/cpp0x/initlist-new2.C: Clarify comment.

From-SVN: r279239

PR c++/92105 - decltype(decltype) error cascade.

The primary change here is to do the CPP_DECLTYPE replacement even when we
get an error, so we don't keep trying and giving the same parse error each
time.  We also commit to the tentative firewall parse more often, leading to
better diagnostics.

* parser.c (cp_parser_decltype_expr): Don't tentative_firewall here.
(cp_parser_decltype): Do it here.  Remember a non-tentative error.

From-SVN: r279237

PR c++/57082 - new X{} and private destructor.

build_new_1 already passes tf_no_cleanup to build_value_init, but in this
testcase we end up calling build_value_init by way of
build_special_member_call, so we need to pass it to that function as well.

* init.c (build_new_1): Also pass tf_no_cleanup to
build_special_member_call.

From-SVN: r279236

PR c++/92774 - ICE with implicitly deleted operator<=>.

Missing error-recovery code.  While I was poking at this I also figured we
don't need to iterate over the members of a union.

* method.c (comp_info::~comp_info): Factor out of...
(build_comparison_op): Here.  Handle error return from build_new_op.

From-SVN: r279235

[PR92843] [OpenACC] Fix dynamic reference counting for structured 'REFCOUNT_INFINITY'

libgomp/
PR libgomp/92843
* oacc-mem.c (present_create_copy, delete_copyout): Fix dynamic
reference counting for structured 'REFCOUNT_INFINITY'.  Add some
assertions.
(goacc_insert_pointer, goacc_remove_pointer): Adjust accordingly.
* testsuite/libgomp.oacc-c-c++-common/pr92843-1.c: New file.
* testsuite/libgomp.oacc-c-c++-common/clauses-1.c: Fix OpenACC.
* testsuite/libgomp.oacc-c-c++-common/lib-82.c: Likewise.
* testsuite/libgomp.oacc-c-c++-common/nested-1.c: Likewise.

From-SVN: r279234

[OpenACC] Consolidate 'GOACC_enter_exit_data' and its helper functions in 'libgomp/oacc-mem.c'

libgomp/
* oacc-parallel.c (find_pointer, GOACC_enter_exit_data): Move...
* oacc-mem.c: ... here.
(gomp_acc_insert_pointer, gomp_acc_remove_pointer): Rename to
'goacc_insert_pointer', 'goacc_remove_pointer', and make 'static'.
* libgomp.h (gomp_acc_insert_pointer, gomp_acc_remove_pointer):
Remove.
* libgomp_g.h: Update.

From-SVN: r279233

[OpenACC] Consolidate 'async'/'wait' code in 'libgomp/oacc-async.c'

libgomp/
* oacc-parallel.c (GOACC_wait, goacc_wait): Move...
* oacc-async.c: ... here.
* oacc-int.h (goacc_wait): Declare.
* libgomp_g.h: Update

From-SVN: r279232

[PR92854] Add 'libgomp.oacc-c-c++-common/acc_map_data-device_already-*.c', 'libgomp.oacc-c-c++-common/acc_map_data-host_already-*.c'

... to document the status quo.

libgomp/
PR libgomp/92854
* testsuite/libgomp.oacc-c-c++-common/acc_map_data-device_already-1.c:
New file.
* testsuite/libgomp.oacc-c-c++-common/acc_map_data-device_already-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/acc_map_data-device_already-3.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/acc_map_data-host_already-1.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/acc_map_data-host_already-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/acc_map_data-host_already-3.c:
Likewise.

From-SVN: r279231

[OpenACC] Initialize 'dynamic_refcount' whenever we initialize 'refcount'

Cases missed in r261813 "Update OpenACC data clause semantics to the 2.5
behavior".

libgomp/
* target.c (gomp_load_image_to_device, omp_target_associate_ptr):
Initialize 'dynamic_refcount' whenever we initialize 'refcount'.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
From-SVN: r279230

PR c++/92859 - ADL and bit-field.

We also need unlowered_expr_type when considering associated types for ADL.

* name-lookup.c: Use unlowered_expr_type.

From-SVN: r279229

PR c++/92446 - deduction of class NTTP.

Another place we need to look through the VIEW_CONVERT_EXPR we add to make a
use of a class NTTP have const type.

* pt.c (deducible_expression): Look through VIEW_CONVERT_EXPR.

From-SVN: r279228

PR middle-end/79221 - missing -Wstringop-overflow= on a strcat overflow

gcc/testsuite/ChangeLog:
* gcc.dg/Wstringop-overflow-26.c: New test.

From-SVN: r279227

Adds multibyte awareness to pretty-print.c

2019-12-11  Lewis Hyatt  <lhyatt@gmail.com>

PR 91853
* pretty-print.c (pp_quoted_string): Avoid hex-escaping valid
multibyte input.  Fix off-by-one-bug printing the last byte before a
hex-escaped output.
(pp_character): Don't apply line wrapping in the middle of multibyte
characters.
(test_utf8): New test.
(pretty_print_c_tests): Call the new test.

From-SVN: r279226

[testsuite][arm] Remove xfail for vect-epilogues test

gcc/testsuite/ChangeLog:
2019-12-11  Andre Vieira  <andre.simoesdiasvieira@arm.com>

* gcc.dg/vect/vect-epilogues.c: Remove xfail for arm.

From-SVN: r279225

libstdc++: Fix whitepace in changelog

From-SVN: r279220

arm: Fix an incorrect warning when -mcpu=cortex-a55 is used with -mfloat-abi=soft

When a CPU such as cortex-a55 is used with the soft-float ABI variant,
the compiler is incorrectly issuing a warning about a mismatch between
the architecture (generated internally) and the CPU.  This is not
expected or intended.

The problem stems from the fact that we generate (correctly) an
architecture for a soft-float compilation, but then try to compare it
against the one recorded for the CPU.  Normally we strip out the
floating point information before doing that comparison, but we
currently only do that for the features that can be affected by the
-mfpu option.  For a soft-float environment we also need to strip out
any bits that depend on having floating-point present.

So this patch implements that and does a bit of housekeeping at the
same time:

- in arm-cpus.in it is not necessary for a CPU to specify both
  +dotprod and +simd in its architecture specification, since +dotprod
  implies +simd.

- I've refactored the ALL_SIMD fgroup in arm-cpus.in to create a new
  subgroup ALL_SIMD_EXTERNAL and containing the bits that were
  previously added directly to ALL_SIMD.  Similarly, I've added an
  ALL_FPU_EXTERNAL subgroup.

- in arm.c rename fpu_bitlist and all_fpubits to fpu_bitlist_internal
  and all_fpubits_internal for consistency with the fgroup bits which
  they contain.

* config/arm/arm-cpus.in (ALL_SIMD_EXTERNAL): New fgroup.
(ALL_SIMD): Use it.
(ALL_FPU_EXTERNAL): New fgroup.
(ALL_FP): Use it.
(cortex-a55, cortex-a75, cortex-a76, cortex-a76ae): Remove redundant
+simd from architecture specification.
(cortex-a77, neoverse-n1, cortex-a75.cortex-a55): Likewise.
* config/arm/arm.c (isa_all_fpubits, fpu_bitlist): Rename to ...
(isa_all_fpubits_internal, fpu_bitlist_internal): ... these.
(isa_all_fpbits): New bitmap.
(arm_option_override): Initialize it.
(arm_configure_build_target): If the target isa does not have any
FP enabled, do not warn about mismatches in FP-related feature bits.

From-SVN: r279219

libgomp – spelling fixes, incl. omp_lib.h.in

        * omp_lib.h.in: Fix spelling of function declaration
        omp_get_cancell(l)ation.
        * libgomp.texi (acc_is_present, acc_async_test, acc_async_test_all):
        Fix typos.
        * env.c: Fix comment typos.
        * oacc-host.c: Likewise.
        * ordered.c: Likewise.
        * task.c: Likewise.
        * team.c: Likewise.
        * config/gcn/task.c: Likewise.
        * config/gcn/team.c: Likewise.
        * config/nvptx/task.c: Likewise.
        * config/nvptx/team.c: Likewise.
        * plugin/plugin-gcn.c: Likewise.
        * testsuite/libgomp.fortran/jacobi.f: Likewise.
        * testsuite/libgomp.hsa.c/tiling-2.c: Likewise.
        * testsuite/libgomp.oacc-c-c++-common/enter_exit-lib.c: Likewise.

From-SVN: r279218

[OpenMP/OpenACC/Fortran] Fix mapping of optional (present|absent) arguments

        * testsuite/libgomp.oacc-fortran/optional-cache.f95: Add 'dg-do run'.
        * testsuite/libgomp.oacc-fortran/optional-reduction.f90: Remove
        unnecessary 'dg-additional-options "-w"'.

From-SVN: r279217

Add ARM-specific Bfloat format support to middle-end

2019-12-11  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

* real.c (struct arm_bfloat_half_format,
encode_arm_bfloat_half, decode_arm_bfloat_half): New.
* real.h (arm_bfloat_half_format): New.

From-SVN: r279216

Fix PR92901: Change test expectation for C++ in OpenACC test clause-locations.c

The columns of the clause locations that are reported for C and C++ are
different and hence we need separate test expectations for both languages.

2019-12-11  Frederik Harwath  <frederik@codesourcery.com>

PR other/92901
/gcc/testsuite/
* c-c++-common/clause-locations.c: Adjust test expectation for C++.

From-SVN: r279215

Fix unrecognizable insn of pr92865.

gcc/
    PR target/92865
    * config/i386/i386-expand.c (ix86_valid_mask_cmp_mode): Enable
    integer mask cmov when available even with TARGET_XOP.

gcc/testsuite
    * gcc.target/i386/pr92865-1.c: New test.

From-SVN: r279214

Restore enable_if lost during original import of pstl

        * include/pstl/glue_numeric_defs.h: Restore enable_if lost
        during original import of pstl.
        * include/pstl/glue_numeric_impl.h: Likewise.

From-SVN: r279212

Daily bump.

From-SVN: r279210

compiler: generate type descriptor for pointer to alias defined in another package

    When a type descriptor is needed (for e.g. interface conversion),
    if the type is a pointer to a named type defined in another
    package, we don't generate the definition of the type descriptor
    because it is generated in the package where the type is defined.
    However, if the named type is an alias to an unnamed type, its
    descriptor is not generated in the other package, and we need to
    generate it.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210787

From-SVN: r279207

libstdc++: Correct noexcept-specifiers on span constructors

As discussed at https://github.com/cplusplus/draft/issues/3534 two
std::span constructors specify incorrect conditions for throwing
exceptions. This patch makes those constructors have correct
noexcept-specifiers that accurately reflect what can actually throw.

(span(ContiguousIterator, Sentinel)): Add conditional noexcept.
* include/std/span (span(ContiguousIterator, size_type)): Change
noexcept to be unconditionally true.
* testsuite/23_containers/span/nothrow_cons.cc: New test.

From-SVN: r279206

re PR tree-optimization/92891 (ice in decompose, at wide-int.h:984)

PR tree-optimization/92891
* builtins.c (gimple_call_alloc_size): Convert size to sizetype
before returning it.

* gcc.c-torture/compile/pr92891.c: New test.

From-SVN: r279205

re PR rtl-optimization/92796 (ICE in lra_assign, at lra-assigns.c:1646 on powerpc64le-linux-gnu)

2019-12-10  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/92796
* lra-int.h (lra_risky_transformations_p): Rename to
check_and_force_assignment_correctness_p.
* lra-assigns.c: Ditto.
(lra_assign): Reset check_and_force_assignment_correctness_p.
* lra-constraints.c (lra_risky_transformations_p): Rename to
check_and_force_assignment_correctness_p.
(lra_constraints): Set up check_and_force_assignment_correctness_p
only for the 1st sub-pass.
* lra-eliminations.c (process_insn_for_elimination): Set up
check_and_force_assignment_correctness_p if the insn chnaged its
code.

2019-12-10  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/92796
* gcc.target/powerpc/pr92796.c: New test.

From-SVN: r279204

re PR fortran/91643 (ICE in gfc_trans_create_temp_array, at fortran/trans-array.c:1265)

2019-12-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/91643
    * trans-array.c (gfc_conv_array_parameter): Do not repack
    an assumed rank dummy argument.

2019-12-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/91643
    * gfortran.dg/assumed_rank_18.f90: New test.

From-SVN: r279203

libstdc++: Rework std::copy/copy_backward/move/move_backward/fill/fill_n algos

Enhance those algos overloads to generalize existing optimization for
__gnu_debug::_Safe_iterator w/o _GLIBCXX_DEBUG mode and for std::deque
 iterators.

Also extend __copy_move_a2 ostreambuf_iterator overloads to std::vector and
std::deque iterators.

* include/bits/stl_algobase.h
(__copy_move_a1<>(_II, _II, _OI)): New.
(__copy_move_a1<>(_Deque_iterator<>, _Deque_iterator<>, _OI)): New.
(__copy_move_a1<>(_Deque_iterator<>, _Deque_iterator<>,
_Deque_iterator<>)): New.
(__copy_move_a1<>(_II, _II, _Deque_iterator<>)): New.
(__copy_move_a<>(_II, _II, _OI)): Adapt, call __copy_move_a1<>.
(__copy_move_a<>(const _Safe_iterator<>&, const _Safe_iterator<>&,
_OI)): New.
(__copy_move_a<>(const _Safe_iterator<>&, const _Safe_iterator<>&,
 const _Safe_iterator<>&)): New.
(__copy_move_a<>(_II, _II, const _Safe_iterator<>&)): New.
(copy, move): Adapt, call __copy_move_a.
(__copy_move_backward_a1<>(_II, _II, _OI)): New,
call __copy_move_backward_a2.
(__copy_move_backward_a1<>(_Deque_iterator<>, _Deque_iterator<>, _OI)): New.
(__copy_move_backward_a1<>(_Deque_iterator<>, _Deque_iterator<>,
_Deque_iterator<>)): New.
(__copy_move_backward_a1<>(_II, _II, _Deque_iterator<>)): New.
(__copy_move_backward_a<>(_II, _II, _OI)): Adapt, call
__copy_move_backward_a1<>.
(__copy_move_backward_a<>(const _Safe_iterator<>&, const _Safe_iterator<>&,
_OI)): New.
(__copy_move_backward_a<>(const _Safe_iterator<>&, const _Safe_iterator<>&,
 const _Safe_iterator<>&)): New.
(__copy_move_backward_a<>(_II, _II, const _Safe_iterator<>&)): New.
(copy_backward, move_backward): Adapt, call __copy_move_backward_a<>.
(__fill_a): Rename into...
(__fill_a1): ... this.
(__fill_a1(__normal_iterator<>, __normal_iterator<>, const _Tp&)): New.
(__fill_a1(const _Deque_iterator<>&, const _Deque_iterator<>&, _VTp)):
New.
(__fill_a(_FIte, _FIte, const _Tp&)): New, call __fill_a1.
(__fill_a(const _Safe_iterator<>&, const _Safe_iterator<>&,
const _Tp&)): New.
(fill): Adapt, remove __niter_base usage.
(__fill_n_a): Rename into...
(__fill_n_a1): ...this.
(__fill_n_a(const _Safe_iterator<>&, _Size, const _Tp&,
input_iterator_tag)): New.
(__fill_n_a(_OI, _Size, const _Tp&, output_iterator_tag)): New, call
__fill_n_a1.
(__fill_n_a(_OI, _Size, const _Tp&, random_access_iterator_tag)): New,
call __fill_a.
(__equal_aux): Rename into...
(__equal_aux1): ...this.
(__equal_aux1(_Deque_iterator<>, _Deque_iterator<>, _OI)): New.
(__equal_aux1(_Deque_iterator<>, _Deque_iterator<>,
_Deque_iterator<>)): New.
(__equal_aux1(_II, _II, _Deque_iterator<>)): New.
(__equal_aux(_II1, _II1, _II2)): New, call __equal_aux1.
(__equal_aux(const _Safe_iterator<>&, const _Safe_iterator<>&,
_OI)): New.
(__equal_aux(const _Safe_iterator<>&, const _Safe_iterator<>&,
 const _Safe_iterator<>&)): New.
(__equal_aux(_II, _II, const _Safe_iterator<>&)): New.
(equal(_II1, _II1, _II2)): Adapt.
* include/bits/stl_deque.h
(fill, copy, copy_backward, move, move_backward): Remove.
* include/bits/deque.tcc: Include <bits/stl_algobase.h>.
(__fill_a1): New.
(__copy_move_dit): New.
(__copy_move_a1): New, use latter.
(__copy_move_a1(_II, _II, _Deque_iterator<>)): New.
(__copy_move_backward_dit): New.
(__copy_move_backward_a1): New, use latter.
(__copy_move_backward_a1(_II, _II, _Deque_iterator<>)): New.
(__equal_dit): New.
(__equal_aux1): New, use latter.
(__equal_aux1(_II, _II, _Deque_iterator<>)): New.
* include/std/numeric (__is_random_access_iter): Move...
* include/bits/stl_iterator_base_types.h (__is_random_access_iter): ...
here. Provide pre-C++11 definition.
* include/debug/debug.h (_Safe_iterator<>): New declaration.
* include/debug/safe_iterator.h (_Safe_iterator<>::_M_can_advance): Add
__strict parameter.
* include/debug/safe_iterator.tcc: Include <bits/stl_algobase.h>.
(_Safe_iterator<>::_M_can_advance): Adapt.
(std::__copy_move_a, std::__copy_move_backward_a, __fill_a): New.
(__fill_n_a, __equal_aux): New.
* include/debug/stl_iterator.h (__niter_base): Remove.
* include/debug/vector (__niter_base): Remove.
* testsuite/performance/25_algorithms/copy_backward_deque_iterators.cc:
Include <vector> and <list>. Add benches.
* testsuite/performance/25_algorithms/copy_deque_iterators.cc: Likewise.
* testsuite/performance/25_algorithms/equal_deque_iterators.cc: Likewise.
* testsuite/25_algorithms/copy/debug/1_neg.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/2.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/31.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/32.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/33.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/41.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/42.cc: New.
* testsuite/25_algorithms/copy/deque_iterators/43.cc: New.
* testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc (test02):
New.
* testsuite/25_algorithms/copy_backward/deque_iterators/2.cc: New.
* testsuite/25_algorithms/equal/deque_iterators/1.cc: New.
* testsuite/25_algorithms/fill/deque_iterators/1.cc: New.
* testsuite/25_algorithms/move/deque_iterators/2.cc: New.
* testsuite/25_algorithms/move_backward/deque_iterators/2.cc: New.

From-SVN: r279201

re PR rtl-optimization/92882 (ICE in regstat_bb_compute_calls_crossed, at regstat.c:327 since r279124)

PR rtl-optimization/92882
* regstat.c (regstat_bb_compute_calls_crossed): Don't check
INSN_UID against DF_INSN_SIZE or use DF_INSN_INFO_GET unless
NONDEBUG_INSN_P.

* gfortran.dg/pr92882.f: New test.

From-SVN: r279196

re PR ipa/92883 (ICE in compare_values_warnv)

PR ipa/92883
* ipa-cp.c (propagate_vr_across_jump_function): Pass jvr rather
than *jfunc->m_vr to intersect.  Formatting fix.

* gcc.dg/ipa/pr92883.c: New test.

From-SVN: r279194

re PR middle-end/92825 (Unnecesary stack protection in Firefox's LightPixel.)

PR middle-end/92825
* cfgexpand.c (add_stack_protection_conflicts): Change return type
from void to bool, return true if at least one stack_vars[i].decl
is addressable.
(record_or_union_type_has_array_p, stack_protect_decl_p): Remove.
(expand_used_vars): Don't call stack_protect_decl_p, instead for
-fstack-protector-strong set gen_stack_protect_signal to true
if add_stack_protection_conflicts returned true.  Formatting fixes.
* doc/invoke.texi (-fstack-protector-strong): Clarify that optimized
out variables or variables not living on the stack don't count.
(-fstack-protector): Likewise.  Clarify it affects >= 8 byte arrays
rather than > 8 byte.

* gcc.target/i386/pr92825.c: New test.

From-SVN: r279193

* ipa-param-manipulation.c
(ipa_param_body_adjustments::register_replacement): Fix comment typo
- accross -> across.
* ipa-sra.c (propagate_used_across_scc_edge, ipa_sra_analysis):
Likewise.
(param_splitting_across_edge): Fix typo in dump message - accross
-> across.

From-SVN: r279188

PR c++/92847 - C++20 comparison ambiguity with class template.

This testcase demonstrates that looking at cand->template_decl is not a good
starting place for finding the most general template, as it is only set for
primary templates.

* call.c (cand_parms_match): Handle all templated functions.

From-SVN: r279185

Fix C++20 structural type vs. private base.

In my patch to implement C++20 "structural type" I tried to set the access
flags on the artificial base fields appropriately, but failed.  I was
copying TREE_PRIVATE from the binfo, but TREE_PRIVATE on binfo is just a
temporary cache for dfs_access_in_type; we really need to get the
inheritance access information from BINFO_BASE_ACCESSES.

* class.c (build_base_field_1): Take access parameter.
(build_base_field): Likewise.
(build_base_fields, layout_virtual_bases): Pass it.
* tree.c (structural_type_p): Improve private base diagnostic.

From-SVN: r279184

PR c++/92560 - ICE with decltype and rewritten operator.

A call as the immediate operand of decltype is handled differently; we don't
create an object of the return type as we do normally.  But in the case of a
rewritten operator, we're adding another call as a wrapper, so the inner
call doesn't get the special handling.

* call.c (build_new_op_1): Clear tf_decltype on inner call.

From-SVN: r279183

Bail out in gfc_dep_compare_expr for a NULL argument.

2019-12-10  Martin Liska  <mliska@suse.cz>

PR fortran/92874
* dependency.c (gfc_dep_compare_expr): Bail out
when one of the arguments is null.
2019-12-10  Martin Liska  <mliska@suse.cz>

PR fortran/92874
* gfortran.dg/pr92874.f90: New test.

From-SVN: r279181

re PR fortran/92863 (ICE in gfc_typename)

2019-12-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/92863
    * misc.c (gfc_typename): If derived component is NULL for
    derived or class, return "invalid type" or "invalid class",
    respectively.

2019-12-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/92863
    * gfortran.dg/interface_45.f90: New test.

From-SVN: r279180

cgraph.c (cgraph_node::verify_node): Verify tp_first_run.

* cgraph.c (cgraph_node::verify_node): Verify tp_first_run.
* cgraph.h (cgrpah_node): Turn tp_first_run back to int.
* cgraphunit.c (tp_first_run_node_cmp): Do not watch for overflows.
(expand_all_functions): First expand ordered section and then
unordered.
* profile.c (compute_value_histograms): Error on out of range
tp_first_runs.

From-SVN: r279179

Turn tp_first_run counts back to 32bit values.

* cgraph.c (cgraph_node::verify_node): Verify tp_first_run.
* cgraph.h (cgrpah_node): Turn tp_first_run back to int.
* cgraphunit.c (tp_first_run_node_cmp): Do not watch for overflows.
(expand_all_functions): First expand ordered section and then
unordered.
* lto-partition.c (lto_balanced_map): Fix printing of tp_first_run.
* profile.c (compute_value_histograms): Error on out of range
tp_first_runs.

From-SVN: r279178

predict.c (compute_function_frequency): Check for presence of IPA profile.

* predict.c (compute_function_frequency): Check for presence of IPA
profile.

From-SVN: r279177

varasm.c (default_function_section): Fix confused tests for tp_first_run reordering.

* varasm.c (default_function_section): Fix confused tests for
tp_first_run reordering.

From-SVN: r279176

libstdc++: Fix description of std::ios::trunc (PR 92886)

PR libstdc++/92886
* include/bits/ios_base.h (std::ios_base::trunc): Fix comment.

From-SVN: r279175

[AArch64] Don't allow partial SVE modes in GPRs

With -msve-vector-bits=N, the payload of some partial SVE modes can
be 16 bytes or smaller, which makes them small enough to fit in a
pair of GPRs.  We specifically don't want that, because the payload
is distributed evenly across the SVE register rather than collected
at one end.  Marshalling it into a GPR via register operations would
be expensive.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Don't
allow SVE modes in GPRs.

gcc/testsuite/
* gcc.target/aarch64/sve/mixed_size_7.c: New test.

From-SVN: r279174

[AArch64] Fix INDEX patterns for partial VNx2 modes

The INDEX patterns handle partial modes by choosing the container
size rather than the element size, so that the number of lanes
(and thus number of additions) matches the mode.  This means that
all VNx4 modes use .s and all VNx2 modes use .d, etc.

When adding this, I'd forgotten that the choice between Wn and Xn
registers would need to be updated to use the container size too.
For partial VNx2s, we were using .d containers with Wn rather than
Xn source registers.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* config/aarch64/iterators.md (vccore): New iterator.
* config/aarch64/aarch64-sve.md (vec_series<mode>): Use it instead
of vwcore.
(*vec_series<mode>_plus): Likewise.

gcc/testsuite/
* gcc.target/aarch64/sve/mixed_size_6.c: New test.

From-SVN: r279173

libstdc++: Define __cpp_lib_constexpr_complex macro

This is LWG issue 3349.

* include/std/complex (__cpp_lib_constexpr_complex): Define.
* include/std/version (__cpp_lib_constexpr_complex): Likewise.
* testsuite/26_numerics/complex/1.cc: New test.
* testsuite/26_numerics/complex/2.cc: New test.

From-SVN: r279172

libstdc++: Reduce header dependencies in <span>

* include/std/span: Do not include <tuple> and <utility>.
(tuple_size, tuple_element): Declare.

From-SVN: r279171

libstdc++: Fix bug in std::indirect_result_t

The alias template wasn't working because it applied iter_reference_t to
the pack of iterators before and after passing the pack to the
__indeirect_result helper.

* include/bits/iterator_concepts.h (indirect_result_t): Do not apply
iter_reference_t to parameter pack.
* testsuite/24_iterators/indirect_callable/projected.cc: New test.

From-SVN: r279170

Add tests to verify OpenACC clause locations

Check that the column information for OpenACC clauses is communicated correctly
to the middle-end, in particular by the Fortran front-end (cf. PR 92793).

2019-12-10  Frederik Harwath  <frederik@codesourcery.com>

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

From-SVN: r279169

Use clause locations in OpenACC nested reduction warnings

Since the Fortran front-end now sets the clause locations correctly, we can
emit warnings with more precise locations if we encounter conflicting
operations for a variable in reduction clauses.

2019-12-10  Frederik Harwath  <frederik@codesourcery.com>

gcc/
* omp-low.c (scan_omp_for): Use clause location in warning.

From-SVN: r279168

Add myself to MAINTAINERS file.

2019-12-10  Lewis Hyatt  <lhyatt@gmail.com>

        * MAINTAINERS (Write After Approval): Add myself.

From-SVN: r279167

Make dwarf2out punt for MODE_VECTOR_BOOL

The dwarf2 handling of vector constants currently divides the vector
into a length (number of elements) and byte element size.  This doesn't
work well for MODE_VECTOR_BOOL, where several elements are packed into
the same byte.

We should probably add a way of encoding this in future, but for now
the safest thing is to punt, like we already do for variable-length
vectors.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* dwarf2out.c (loc_descriptor): Punt for MODE_VECTOR_BOOL.
(add_const_value_attribute): Likewise.

gcc/testsuite/
* gcc.target/aarch64/sve/acle/general/debug_4.c: New test.

From-SVN: r279165

Add missing conversion in vect_create_epilog_for_reduction

The direct_slp_reduc code in vect_create_epilog_for_reduction was
still assuming that all types involved in a reduction are the same
(up to types_compatible_p), whereas we now support differences in
sign.  This was causing an ICE in gcc.dg/vect/pr92324-4.c for SVE.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (vect_create_epilog_for_reduction): When
handling direct_slp_reduc, allow the PHI arguments to have
a different type from the vector elements.

From-SVN: r279164

Record the loop masks needed for EXTRACT_LAST_REDUCTIONs

The analysis phase of vectorizable_condition wasn't recording the
loop masks needed by the transform phase.  This meant that the masks
wouldn't be created in the (rare) case that no other statement needed
them.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-stmts.c (vectorizable_condition): Record the loop
masks required for extract-last reductions.

gcc/testsuite/
* gcc.target/aarch64/sve/clastb_9.c: New test.

From-SVN: r279163

Fix EXTRACT_LAST_REDUCTION handling of pattern stmts

Unlike most vector ops, extract-last reductions replace the original
scalar code in-situ rather than adding an adjacent vector implementation.
I.e.:

   dest_1 = COND_EXPR <...>;

becomes:

   dest_1 = .EXTRACT_LAST (...);

gcc.dg/vect/vect-cond-reduc-4.c was ICEing for SVE because we tried
to replace the pattern statement in this way, rather than replacing
the original scalar statement.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-stmts.c (vect_finish_replace_stmt): Always use the
original scalar statement rather than a pattern statement.
(vectorizable_condition): Likewise, in the handling of extract-last
reductions.

From-SVN: r279162

Disallow EXTRACT_LAST_REDUCTION for reduction chains

gcc.dg/vect/vect-cond-reduc-5.c was ICEing for SVE because we
tried to use an extract-last reduction for a chain of COND_EXPRs.
Adding support for the chained case would be too invasive for stage 3
so this patch explicitly forbids it instead.  I've filed PR92884 for
the possible future work.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-vect-loop.c (vectorizable_reduction): Don't use
EXTRACT_LAST_REDUCTION for chained reductions.

From-SVN: r279161

Fortran] PR 92872 – Fix get_CFI_desc

        PR fortran/92872
        * trans-array.c (get_CFI_desc): Fix cond whether saved desc exists.

        PR fortran/92872
        * gfortran.dg/bind_c_optional-1.f90: New.

From-SVN: r279160

Check for TYPE_DECL in get_odr_name_for_type

Make get_odr_name_for_type check for TYPE_DECL in the way that
its caller warn_types_mismatch previously did.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* ipa-utils.h (get_odr_name_for_type): Check for a TYPE_DECL.
* ipa-devirt.c (warn_types_mismatch): Don't call xstrdup for the
second demangled name.

gcc/testsuite/
* gcc.dg/lto/tag-1_0.c, gcc.dg/lto/tag-1_1.c: New test.

From-SVN: r279159

avx512f-vmovntpd-2.c: Ensure res is 64-byte aligned.

* gcc.target/i386/avx512f-vmovntpd-2.c: Ensure res is 64-byte aligned.
* gcc.target/i386/avx512f-vmovntps-2.c: Likewise.

From-SVN: r279158

* config/i386/i386.c (IX86_LEA_PRIORITY): Fix comment typos.

From-SVN: r279157

Fix typos in 2 functions.

2019-12-10  Martin Liska  <mliska@suse.cz>

PR tree-optimization/92862
* predict.c (predict_paths_leading_to_edge): Fix typo from e to e2.
* tree-ssa-loop-niter.c (loop_only_exit_p): Return false
instead of true;

From-SVN: r279156

libbacktrace: remove duplicate low_pc/high_pc/range handling

* dwarf.c (struct pcrange): Define.
(update_pcrange, add_ranges): New static functions.
(add_unit_addr): Change signature to work with add_ranges.  Don't
add base_address here.
(add_unit_ranges): Remove.
(find_address_ranges): Replace str/ranges parameters with
dwarf_sections.  Use update_pcrange and add_ranges.  Change all
callers.
(add_function_range): Change signature to work with add_ranges.
Don't add base_address here.
(add_function_ranges): Remove.
(read_function_entry): Use update_pcrange and add_ranges.

From-SVN: r279154

Replace label_text ctor with "borrow" and "take"

libcpp's label_text class wraps a text buffer, along with a flag to
determine if it "owns" the buffer.

The existing ctor exposed this directly, but I found it difficult
to remember the sense of flag, so this patch hides the ctor, in
favor of static member functions "borrow" and "take", to make
the effect on ownership explicit in the name.

gcc/c-family/ChangeLog:
* c-format.c (range_label_for_format_type_mismatch::get_text):
Replace label_text ctor called with true with label_text::take.

gcc/c/ChangeLog:
* c-objc-common.c (range_label_for_type_mismatch::get_text):
Replace label_text ctor calls.

gcc/cp/ChangeLog:
* error.c (range_label_for_type_mismatch::get_text): Replace
label_text ctor calls with label_text::borrow.

gcc/ChangeLog:
* gcc-rich-location.c
(maybe_range_label_for_tree_type_mismatch::get_text): Replace
label_text ctor call with label_text::borrow.
* gcc-rich-location.h (text_range_label::get_text): Replace
label_text ctor called with false with label_text::borrow.

libcpp/ChangeLog:
* include/line-map.h (label_text::label_text): Make private.
(label_text::borrow): New.
(label_text::take): New.
(label_text::take_or_copy): New.

From-SVN: r279153

diagnostic_show_locus: move initial newline to callers

diagnostic_show_locus adds a newline before doing anything (including
the do-nothing-else case).

This patch removes this initial newline, adding it to all callers
of diagnostic_show_locus instead.

Doing so makes diagnostic_show_locus more flexible, allowing it to be
used in my analyzer patch kit for printing diagnostic paths.

gcc/c-family/ChangeLog:
* c-format.c (selftest::test_type_mismatch_range_labels): Remove
initial newline from expected outputs.
* c-opts.c (c_diagnostic_finalizer): Add pp_newline call before
call to diagnostic_show_locus.

gcc/ChangeLog:
* diagnostic-show-locus.c (diagnostic_show_locus): Remove initial
newline.
(selftest::test_diagnostic_show_locus_unknown_location): Remove
initial newline from expected outputs.
(selftest::test_one_liner_simple_caret): Likewise.
(selftest::test_one_liner_caret_and_range): Likewise.
(selftest::test_one_liner_multiple_carets_and_ranges): Likewise.
(selftest::test_one_liner_fixit_insert_before): Likewise.
(selftest::test_one_liner_fixit_insert_after): Likewise.
(selftest::test_one_liner_fixit_remove): Likewise.
(selftest::test_one_liner_fixit_replace): Likewise.
(selftest::test_one_liner_fixit_replace_non_equal_range):
Likewise.
(selftest::test_one_liner_fixit_replace_equal_secondary_range):
Likewise.
(selftest::test_one_liner_fixit_validation_adhoc_locations):
Likewise.
(selftest::test_one_liner_many_fixits_1): Likewise.
(selftest::test_one_liner_many_fixits_2): Likewise.
(selftest::test_one_liner_labels): Likewise.
(selftest::test_one_liner_simple_caret_utf8): Likewise.
(selftest::test_one_liner_caret_and_range_utf8): Likewise.
(selftest::test_one_liner_multiple_carets_and_ranges_utf8):
Likewise.
(selftest::test_one_liner_fixit_insert_before_utf8): Likewise.
(selftest::test_one_liner_fixit_insert_after_utf8): Likewise.
(selftest::test_one_liner_fixit_remove_utf8): Likewise.
(selftest::test_one_liner_fixit_replace_utf8): Likewise.
(selftest::test_one_liner_fixit_replace_non_equal_range_utf8):
Likewise.
(selftest::test_one_liner_fixit_replace_equal_secondary_range_utf8):
Likewise.
(selftest::test_one_liner_fixit_validation_adhoc_locations_utf8):
Likewise.
(selftest::test_one_liner_many_fixits_1_utf8): Likewise.
(selftest::test_one_liner_many_fixits_2_utf8): Likewise.
(selftest::test_one_liner_labels_utf8): Likewise.
(selftest::test_add_location_if_nearby): Likewise.
(selftest::test_diagnostic_show_locus_fixit_lines): Likewise.
(selftest::test_overlapped_fixit_printing): Likewise.
(selftest::test_overlapped_fixit_printing_utf8): Likewise.
(selftest::test_overlapped_fixit_printing_2): Likewise.
(selftest::test_fixit_insert_containing_newline): Likewise.
(selftest::test_fixit_insert_containing_newline_2): Likewise.
(selftest::test_fixit_replace_containing_newline): Likewise.
(selftest::test_fixit_deletion_affecting_newline): Likewise.
(selftest::test_line_numbers_multiline_range): Likewise.
* diagnostic.c (default_diagnostic_finalizer): Add pp_newline call
before call to diagnostic_show_locus.
(diagnostic_append_note): Likewise.

gcc/fortran/ChangeLog:
* error.c (gfc_diagnostic_starter): Add pp_newline call before
call to diagnostic_show_locus.

gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
(custom_diagnostic_finalizer): Add pp_newline call before call to
diagnostic_show_locus.

From-SVN: r279152