Move simplification of statements using ranges into its own class.

This moves all the simplification code from vr_values into a separate
class (simplify_using_ranges).  In doing so, we get rid of a bunch of
dependencies on the internals of vr_values.  The goal is to (a) remove
unnecessary interdependendcies (b) be able to use this engine with any
range infrastructure, as all it needs is a method to get the range for
an SSA name (get_value_range).

I also removed as many dependencies on value_range_equiv as possible,
preferring value_range.  A few value_range_equiv uses remain, but for
cases where equivalences are actually used (folding conditionals, etc).

gcc/ChangeLog:

* gimple-ssa-evrp-analyze.h (vrp_visit_cond_stmt): Use
simplify_using_ranges class.
* gimple-ssa-evrp.c (class evrp_folder): New simplify_using_ranges
field.  Adjust all methods to use new field.
* tree-ssa-dom.c (simplify_stmt_for_jump_threading): Use
simplify_using_ranges class.
* tree-vrp.c (class vrp_folder): New simplify_using_ranges
field.  Adjust all methods to use new field.
(simplify_stmt_for_jump_threading): Use simplify_using_ranges class.
(vrp_prop::vrp_finalize): New vrp_folder argument.
(execute_vrp): Pass folder to vrp_finalize.  Use
simplify_using_ranges class.
Remove cleanup_edges_and_switches call.
* vr-values.c (vr_values::op_with_boolean_value_range_p): Change
value_range_equiv uses to value_range.
(simplify_using_ranges::op_with_boolean_value_range_p): Use
simplify_using_ranges class.
(check_for_binary_op_overflow): Make static.
(vr_values::extract_range_basic): Pass this to
check_for_binary_op_overflow.
(compare_range_with_value): Change value_range_equiv uses to
value_range.
(vr_values::vr_values): Initialize simplifier field.
Remove uses of to_remove_edges and to_update_switch_stmts.
(vr_values::~vr_values): Remove uses of to_remove_edges and
to_update_switch_stmts.
(vr_values::get_vr_for_comparison): Move to simplify_using_ranges
class.
(vr_values::compare_name_with_value): Same.
(vr_values::compare_names): Same.
(vr_values::vrp_evaluate_conditional_warnv_with_ops): Same.
(vr_values::vrp_evaluate_conditional): Same.
(vr_values::vrp_visit_cond_stmt): Same.
(find_case_label_ranges): Change value_range_equiv uses to
value_range.
(vr_values::extract_range_from_stmt): Use simplify_using_ranges class.
(vr_values::simplify_truth_ops_using_ranges): Move to
simplify_using_ranges class.
(vr_values::simplify_div_or_mod_using_ranges): Same.
(vr_values::simplify_min_or_max_using_ranges): Same.
(vr_values::simplify_abs_using_ranges): Same.
(vr_values::simplify_bit_ops_using_ranges): Same.
(test_for_singularity): Change value_range_equiv uses to
value_range.
(range_fits_type_p): Same.
(vr_values::simplify_cond_using_ranges_1): Same.
(vr_values::simplify_cond_using_ranges_2): Make extern.
(vr_values::fold_cond): Move to simplify_using_ranges class.
(vr_values::simplify_switch_using_ranges): Same.
(vr_values::cleanup_edges_and_switches): Same.
(vr_values::simplify_float_conversion_using_ranges): Same.
(vr_values::simplify_internal_call_using_ranges): Same.
(vr_values::two_valued_val_range_p): Same.
(vr_values::simplify_stmt_using_ranges): Move to...
(simplify_using_ranges::simplify): ...here.
* vr-values.h (class vr_values): Move all the simplification of
statements using ranges methods and code from here...
(class simplify_using_ranges): ...to here.
(simplify_cond_using_ranges_2): New extern prototype.

openmp: Non-rectangular loop support for non-composite worksharing loops and distribute

This implements the fallback mentioned in
https://gcc.gnu.org/pipermail/gcc/2020-June/232874.html
Special cases for triangular loops etc. to follow later, also composite
constructs not supported yet (need to check the passing of temporaries around)
and lastprivate might not give the same answers as serial loop if the last
innermost body iteration isn't the last one for some of the outer loops
(that will need to be solved separately together with rectangular loops that have no
innermost body iterations, but some of the outer loops actually iterate).
Also, simd needs work.

2020-06-27  Jakub Jelinek  <jakub@redhat.com>

* omp-general.h (struct omp_for_data_loop): Add non_rect_referenced
member, move outer member.
(struct omp_for_data): Add first_nonrect and last_nonrect members.
* omp-general.c (omp_extract_for_data): Initialize first_nonrect,
last_nonrect and non_rect_referenced members.
* omp-expand.c (expand_omp_for_init_counts): Handle non-rectangular
loops.
(expand_omp_for_init_vars): Add nonrect_bounds parameter.  Handle
non-rectangular loops.
(extract_omp_for_update_vars): Likewise.
(expand_omp_for_generic, expand_omp_for_static_nochunk,
expand_omp_for_static_chunk, expand_omp_simd,
expand_omp_taskloop_for_outer, expand_omp_taskloop_for_inner): Adjust
expand_omp_for_init_vars and extract_omp_for_update_vars callers.
(expand_omp_for): Don't sorry on non-composite worksharing-loop or
distribute.

* testsuite/libgomp.c/loop-17.c: New test.
* testsuite/libgomp.c/loop-18.c: New test.

c-family: Use TYPE_OVERFLOW_UNDEFINED instead of !TYPE_UNSIGNED in pointer_sum [PR95903]

For lp64 targets and int off ... ptr[off + 1]
is lowered in pointer_sum to *(ptr + ((sizetype) off + (sizetype) 1)).
That is fine when signed integer wrapping is undefined (and is not done
already if off has unsigned type), but changes behavior for -fwrapv, where
overflow is well defined.  Runtime test could be:
int
main ()
{
  char *p = __builtin_malloc (0x100000000UL);
  if (!p) return 0;
  char *q = p + 0x80000000UL;
  int o = __INT_MAX__;
  q[o + 1] = 1;
  if (q[-__INT_MAX__ - 1] != 1) __builtin_abort ();
  return 0;
}
with -fwrapv or so, not included in the testsuite because it requires 4GB
allocation (with some other test it would be enough to have something
slightly above 2GB, but still...).

2020-06-27  Jakub Jelinek  <jakub@redhat.com>

PR middle-end/95903
gcc/c-family/
* c-common.c (pointer_int_sum): Use TYPE_OVERFLOW_UNDEFINED instead of
!TYPE_UNSIGNED check to see if we can apply distributive law and handle
smaller precision intop operands separately.
gcc/testsuite/
* c-c++-common/pr95903.c: New test.

coroutines: Handle awaiters that are sub-objects [PR95736]

Move deciding on initializers for awaitables to the build of the
co_await, this allows us to analyse cases that do not need
a temporary at that point.

As the PR shows, the late analysis meant that we  were not
checking properly for the case that an awaiter is a sub-object
of an existing variable outside the current function scope (and
therefore does not need to be duplicated in the frame).

gcc/cp/ChangeLog:

PR c++/95736
* coroutines.cc (get_awaitable_var): New helper.
(build_co_await): Check more carefully before
copying an awaitable.
(expand_one_await_expression): No initializer
is required when the awaitable is not a temp.
(register_awaits): Remove handling that is now
completed when the await expression is built.

gcc/testsuite/ChangeLog:

PR c++/95736
* g++.dg/coroutines/pr95736.C: New test.

coroutines: Improve diagnostics for one allocator case.

If the user provides operator new and that is noexcept, this
implies that it can fail with a null return.  At that point, we expect
to be able to call get_return_object_on_allocation_failure().

This diagnoses the case where such an operator new has been
provided, but the g-r-o-o-a-f is either missing or unusable.

gcc/cp/ChangeLog:

* coroutines.cc (morph_fn_to_coro): Diagnose unavailable
get_return_object_on_allocation_failure.

gcc/testsuite/ChangeLog:

* g++.dg/coroutines/coro-bad-grooaf-01-grooaf-expected.C: New test.

Add PowerPC tests for power10.

2020-06-27  Michael Meissner  <meissner@linux.ibm.com>

* gcc.target/powerpc/prefix-add.c: New test.
* gcc.target/powerpc/prefix-si-constant.c: New test.
* gcc.target/powerpc/prefix-di-constant.c: New test.
* gcc.target/powerpc/prefix-ds-dq.c: New test.
* gcc.target/powerpc/prefix-no-update.c: New test.
* gcc.target/powerpc/prefix-large-dd.c: New test.
* gcc.target/powerpc/prefix-large-df.c: New test.
* gcc.target/powerpc/prefix-large-di.c: New test.
* gcc.target/powerpc/prefix-large-hi.c: New test.
* gcc.target/powerpc/prefix-large-kf.c: New test.
* gcc.target/powerpc/prefix-large-qi.c: New test.
* gcc.target/powerpc/prefix-large-sd.c: New test.
* gcc.target/powerpc/prefix-large-sf.c: New test.
* gcc.target/powerpc/prefix-large-si.c: New test.
* gcc.target/powerpc/prefix-large-udi.c: New test.
* gcc.target/powerpc/prefix-large-uhi.c: New test.
* gcc.target/powerpc/prefix-large-uqi.c: New test.
* gcc.target/powerpc/prefix-large-usi.c: New test.
* gcc.target/powerpc/prefix-large-v2df.c: New test.
* gcc.target/powerpc/prefix-large.h: Include file for new tests.
* gcc.target/powerpc/prefix-pcrel-dd.c: New test.
* gcc.target/powerpc/prefix-pcrel-df.c: New test.
* gcc.target/powerpc/prefix-pcrel-di.c: New test.
* gcc.target/powerpc/prefix-pcrel-hi.c: New test.
* gcc.target/powerpc/prefix-pcrel-kf.c: New test.
* gcc.target/powerpc/prefix-pcrel-qi.c: New test.
* gcc.target/powerpc/prefix-pcrel-sd.c: New test.
* gcc.target/powerpc/prefix-pcrel-sf.c: New test.
* gcc.target/powerpc/prefix-pcrel-si.c: New test.
* gcc.target/powerpc/prefix-pcrel-udi.c: New test.
* gcc.target/powerpc/prefix-pcrel-uhi.c: New test.
* gcc.target/powerpc/prefix-pcrel-uqi.c: New test.
* gcc.target/powerpc/prefix-pcrel-usi.c: New test.
* gcc.target/powerpc/prefix-pcrel-v2df.c: New test.
* gcc.target/powerpc/prefix-pcrel.h: Include file for new tests.
* gcc.target/powerpc/prefix-stack-protect.c: New test.

Daily bump.

Linux/i386: Remove SUBTARGET_FRAME_POINTER_REQUIRED

config/i386/gnu-user.h has

 #define SUBTARGET_FRAME_POINTER_REQUIRED crtl->profile

ix86_frame_pointer_required() has

  /* Several x86 os'es need a frame pointer for other reasons,
     usually pertaining to setjmp.  */
  if (SUBTARGET_FRAME_POINTER_REQUIRED)
    return true;
...

  if (crtl->profile && !flag_fentry)
    return true;

A frame pointer is needed only for -pg, not for -mfentry -pg.  Remove
SUBTARGET_FRAME_POINTER_REQUIRED from gnu-user.h to make i386 GCC behave
the same as x86-64 GCC.  This fixes

FAIL: gcc.target/i386/pr93492-3.c scan-assembler \t.cfi_startproc\n\tendbr(32|64)\n.*.LPFE1:\n\tnop\n1:\tcall\t__fentry__\n\tret\n
FAIL: gcc.target/i386/pr93492-5.c scan-assembler \t.cfi_startproc\n.*.LPFE1:\n\tnop\n1:\tcall\t__fentry__\n\tret\n

on Linux/i386.

PR target/95655
* config/i386/gnu-user.h (SUBTARGET_FRAME_POINTER_REQUIRED):
Removed.
* config/i386/i386.c (ix86_frame_pointer_required): Update
comments.

Fix target clone indirection elimination

The current logic seems to be comparing the whole attribute tree between
the callee and caller (or at least the tree starting from the target attribute).
This is unnecessary and causes strange dependency of the indirection
elimination on unrelated properties like `noinline`(PR95780) and
`visibility`(PR95778).

This changes the comparison to be only on the `target` attribute which should
be the intent of the code.

gcc

* multiple_target.c (redirect_to_specific_clone): Fix tests
to check individual attribute rather than an attribute list.

gcc/testsuite

* gcc.target/i386/pr95778-1.c: New test.
* gcc.target/i386/pr95778-2.c: New test.

rs6000: Add support for __builtin_cpu_is ("power10")

Add support for __builtin_cpu_is ("power10").  Also add documentation for
the recently added "arch_3_1" and "mma" __builtin_cpu_supports arguments.

2020-06-25  Peter Bergner  <bergner@linux.ibm.com>

gcc/
* config/rs6000/rs6000-call.c (cpu_is_info) <power10>: New.
* doc/extend.texi (PowerPC Built-in Functions): Document power10,
arch_3_1 and mma.

gcc/testsuite/
* gcc.target/powerpc/cpu-builtin-1.c: Add tests for power10, arch_3_1
and mma.

c++: Change the default dialect to C++17.

Since GCC 9, C++17 support is no longer experimental.  It was too late
to change the default C++ dialect to C++17 in GCC 10, but I think now
it's time to pull the trigger (C++14 was made the default in GCC 6.1).
We're still missing two C++17 library features, but that shouldn't stop
us.  See
<https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2017>
and
<https://gcc.gnu.org/projects/cxx-status.html#cxx17>
for the C++17 status.

I won't list all C++17 features here, but just a few heads-up:

- trigraphs were removed (hardly anyone cares, unless your keyboard is
  missing the # key),
- operator++(bool) was removed (so some tests now run in C++14 and down
  only),
- the keyword register was removed (some legacy code might trip on
  this),
- noexcept specification is now part of the type system and C++17 does
  not allow dynamic exception specifications anymore (the empty throw
  specification is still available, but it is deprecated),
- the evaluation order rules are different in C++17,
- static constexpr data members are now implicitly inline (which makes
  them definitions),
- C++17 requires guaranteed copy elision, meaning that a copy/move
  constructor call might be elided completely.  That means that if
  something relied on a constructor being instantiated via e.g. copying
  a function parameter, it might now fail.

I'll post an update for cxx-status.html and add a new caveat to changes.html
once this is in.

gcc/ChangeLog:
* doc/invoke.texi (C Dialect Options): Adjust -std default for C++.
* doc/standards.texi (C Language): Correct the default dialect.
(C++ Language): Update the default for C++ to gnu++17.

gcc/c-family/ChangeLog:
* c-opts.c (c_common_init_options): Default to gnu++17.

gcc/testsuite/ChangeLog:
* c-c++-common/torture/vector-subscript-3.c: In C++17, define away
the keyword register.
* g++.dg/cpp1z/attributes-enum-1a.C: Only run pre-C++17.
* g++.dg/cpp1z/fold7a.C: Likewise.
* g++.dg/cpp1z/nontype3a.C: Likewise.
* g++.dg/cpp1z/utf8-2a.C: Likewise.
* g++.dg/parse/error11.C: Update expected diagnostics for C++17.
* g++.dg/torture/pr34850.C: Add -Wno-attribute-warning.
* g++.dg/torture/pr49394.C: In C++17, use noexcept(false).
* g++.dg/torture/pr82154.C: Use -std=c++14.
* lib/target-supports.exp: Set to C++17.
* obj-c++.dg/try-catch-9.mm: Use -Wno-register.

libgomp/ChangeLog:
* testsuite/libgomp.c++/atomic-3.C: Use -std=gnu++14.

Fix failure in gfortran.dg/gomp/combined-if.f90 test

Enabling nvptx offloading results in extra '#pragma omp simd' statements
in the tree dump with an extra '_simt_'.

2020-06-26  Kwok Cheung Yeung  <kcy@codesourcery.com>

gcc/testsuite/
* gfortran.dg/gomp/combined-if.f90: Adjust expected number
of matches depending on whether nvptx offloading is supported.
* lib/target-supports.exp
(check_effective_target_offload_nvptx): New.

Take into account range info to optimize range tests into bit tests

The patch is aimed at addressing the following two issues:

  1. In order to protect the shift operation from undefinedness, the
new bit test is guarded with a new test, but this new test uses the
range of the bit test values, not that of the shift operation so,
if the input is in the range of the shift operation but not of the
bit test values, then the subsequent VRP pass cannot eliminate the
new test.  Moreover changing the new test to use the range of the
shift operation, instead of that of the bit test values, in the
general case would pessimize the cases which are in between.

  2. If the new test can be eliminated, then it becomes profitable
to do the optimization into a bit test for one fewer comparison in
the source code.

Therefore the patch changes optimize_range_tests_to_bit_test to use
the range info of the input in order to eliminate the new test.

gcc/ChangeLog:
* tree-ssa-reassoc.c (dump_range_entry): New function.
(debug_range_entry): New debug function.
(update_range_test): Invoke dump_range_entry for dumping.
(optimize_range_tests_to_bit_test): Merge the entry test in the
bit test when possible and lower the profitability threshold.

gcc/ada/ChangeLog:
* exp_ch4.adb (Expand_Set_Membership): Expand the membership test
using left associativity instead of right associativity.

gcc/testsuite/ChangeLog:
* gnat.dg/opt86_pkg.ads: New helper.
* gnat.dg/opt86a.adb: New test.
* gnat.dg/opt86b.adb: Likewise.
* gnat.dg/opt86c.adb: Likewise.

d/testsuite: Amend test to actually trigger the ICE being fixed

gcc/testsuite/ChangeLog:

* gdc.dg/pr95250.d: Updated.

coroutines: Handle non-method promise expressions [PR95519]

The PR  points out that the standard does not restrict promise
expressions to methods, but the current implementation does.

The patch factors out the building of a general promise expression,
and then uses it in a fairly mechanical replacement of each case
that we need such an expressions.

This extends the handling for p.xxxxxx() expressions to cover the
cases where the promise member is some form callable.

Tests are added for each of the promise expressions.

It's somewhat tortuous to find good uses for this for the
get-return-object and get-return-object-on-allocation-failure
cases, but they are included anyway.

gcc/cp/ChangeLog:

PR c++/95519
* coroutines.cc (struct coroutine_info):Add a field
to hold computed p.return_void expressions.
(coro_build_promise_expression): New.
(get_coroutine_return_void_expr): New.
(finish_co_yield_expr): Build the promise expression
using coro_build_promise_expression.
(finish_co_return_stmt): Likewise.
(build_init_or_final_await): Likewise.
(morph_fn_to_coro): Likewise, for several cases.

gcc/testsuite/ChangeLog:

PR c++/95519
* g++.dg/coroutines/torture/pr95519-00-return_void.C: New test.
* g++.dg/coroutines/torture/pr95519-01-initial-suspend.C: New test.
* g++.dg/coroutines/torture/pr95519-02-final_suspend.C: New test.
* g++.dg/coroutines/torture/pr95519-03-return-value.C: New test.
* g++.dg/coroutines/torture/pr95519-04-yield-value.C: New test.
* g++.dg/coroutines/torture/pr95519-05-gro.C: New test.
* g++.dg/coroutines/torture/pr95519-06-grooaf.C: New test.
* g++.dg/coroutines/torture/pr95519-07-unhandled-exception.C: New test.

coroutines: Handle bad g-r-o-o-a-f cases.

If we see a get_return_object_on_allocation_failure in the
promise, we expect to be able to use it.  If this isn't
possible (because of some error in the declaration) then we
need to handle the erroneous return to allow following code
to complete.

gcc/cp/ChangeLog:

* coroutines.cc (morph_fn_to_coro): Handle error
returns in building g-r-o-o-a-f expressions.

gcc/testsuite/ChangeLog:

* g++.dg/coroutines/coro1-allocators.h (BAD_GROOAF_STATIC):
New.
* g++.dg/coroutines/coro-bad-grooaf-00-static.C: New test.

tree-optimization/95897 - fix fold-left SLP reduction insert place

This fixes computation of the insertion place for fold-left SLP
reductions where the PHIs do not have vectorized stmts.  The
SLP representation isn't perfect here thus the following.

2020-06-26  Richard Biener  <rguenther@suse.de>

PR tree-optimization/95897
* tree-vectorizer.h (vectorizable_induction): Remove
unused gimple_stmt_iterator * parameter.
* tree-vect-loop.c (vectorizable_induction): Likewise.
(vect_analyze_loop_operations): Adjust.
* tree-vect-stmts.c (vect_analyze_stmt): Likewise.
(vect_transform_stmt): Likewise.
* tree-vect-slp.c (vect_schedule_slp_instance): Adjust
for fold-left reductions, clarify existing reduction case.

* gcc.dg/vect/pr95897.c: New testcase.

This patch removes the use of the "register" keyword from the bsearch() and bsearch_r() functions supplied by libiberty.  The register keyword is deprecated in C++17.

2020-06-25  Nick Clifton  <nickc@redhat.com>

include/
* libiberty.h (bsearch_r): Remove use of the register keyword from
the prototype.

libiberty/
* bsearch.c (bsearch): Remove use of register keyword.
* bsearch_r.c (bsearch_r): Likewise.

Daily bump.

c++: Add test for c++/91104

Fixed by r271705.

gcc/testsuite/ChangeLog:

PR c++/91104
* g++.dg/cpp1y/lambda-generic-variadic21.C: New test.

PR fortran/95828 - Buffer overflows with SELECT RANK

With SELECT RANK, name mangling results in long internal symbols that
overflows internal buffers.  Fix that.

gcc/fortran/
PR fortran/95828
* match.c (select_rank_set_tmp): Enlarge internal buffer used in
generating a mangled name.
* resolve.c (resolve_select_rank): Likewise.

PR fortran/95826 - Buffer overflows with PDTs and long symbols

With PDTs (parameterized derived types), name mangling results in variably
long internal symbols.  Use a dynamic buffer instead of a fixed-size one.

gcc/fortran/
PR fortran/95826
* decl.c (gfc_match_decl_type_spec): Replace a fixed size
buffer by a pointer and reallocate if necessary.

This patch disables the movsicc pattern in the M32R backend, which is repsonsible for the failure of several gcc testsuite entries.

2020-06-05  Nick Clifton  <nickc@redhat.com>

gcc/
* config/m32r/m32r.md (movsicc): Disable pattern.

d: Do not implicitly set DECL_DECLARED_INLINE_P on member functions.

This has been questionable behaviour since it was added, and though it
has no effect on wider discussions around what should be the correct
semantics of pragma(inline) within D modules, doing this tree-level
optimization has mostly zero benefit as cross-module inlining doesn't
happen anyway.

gcc/d/ChangeLog:

* decl.cc (get_symbol_decl): Do not implicitly set
DECL_DECLARED_INLINE_P on member functions.

d: Move d_signed_type and d_unsigned_type to types.cc

These two functions are not tied to the language-specific part of the
front-end in any way.

gcc/d/ChangeLog:

* d-lang.cc (d_gimplify_expr_p): Make static.
(d_parse_file): Likewise.
(d_signed_or_unsigned_type): Move to types.cc.
(d_unsigned_type): Likewise.
(d_signed_type): Likewise.
* d-tree.h (d_unsigned_type): Change the location in file.
(d_signed_type): Likewise.
* types.cc (d_signed_or_unsigned_type): Moved from d-lang.cc.
(d_unsigned_type): Likewise.
(d_signed_type): Likewise.

d: Merge upstream dmd 4be011355.

Fixes self-assignment warnings seen when compiling with clang.

Reviewed-on: https://github.com/dlang/dmd/pull/11315

gcc/d/ChangeLog:

PR d/95075
* dmd/MERGE: Merge upstream dmd 4be011355.

d: Merge upstream dmd 90450f3ef.

Fixes a regression caused by an incomplete backport of converting the
Expression semantic pass to a Visitor.

Reviewed-on: https://github.com/dlang/dmd/pull/11314

gcc/d/ChangeLog:

PR d/95250
* dmd/MERGE: Merge upstream dmd 90450f3ef.

gcc/testsuite/ChangeLog:

PR d/95250
* gdc.dg/pr95250.d: New test.

d: Remove another dependency on the front-end OutBuffer type.

As the DMD front-end never frees allocated memory, the glue layer
between the DMD front-end and GCC should generally avoid using DMD types
and interfaces if the purpose is internal only.

gcc/d/ChangeLog:

* d-lang.cc (d_parse_file): Replace OutBuffer with obstack.

d: Merge upstream dmd 5fc1806cd.

Backports the OutBuffer interface from upstream dmd master, removing
another difference this and the self-hosted D branch that is purely
refactoring, and doesn't introduce any mechanical changes.

Reviewed-on: https://github.com/dlang/dmd/pull/11302

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 5fc1806cd.
* d-lang.cc (d_parse_file): Use peekChars to get string representation
of OutBuffer data.

d: Fix ICE in uda_attribute_p when looking up unknown attribute

The target attribute table is not guaranteed to be set in all backends.

gcc/d/ChangeLog:

PR d/95173
* d-attribs.cc (uda_attribute_p): Don't search target attribute table
if NULL.

gcc/testsuite/ChangeLog:

PR d/95173
* gdc.dg/pr95173.d: New test.

d: Don't set DECL_INITIAL if initializer is 'void'.

Declarations initialized with `= void` were being default initialized.
That is not really the intent, and misses the small optimization that
should have been gained from using void initializations.

gcc/d/ChangeLog:

* decl.cc (DeclVisitor::visit (VarDeclaration *)): Don't set
DECL_INITIAL if initializer is 'void'.

gcc/testsuite/ChangeLog:

* gdc.dg/init1.d: New test.

d: Turn on deprecation warnings by default.

This is the default in the upstream reference compiler, and can reduce
some confusion when comparing warning/error messages of gdc and dmd side
by side.

Merges libphobos with upstream druntime d05ebaad and phobos 021ae0df7.

Reviewed-on: https://github.com/dlang/druntime/pull/3127
     https://github.com/dlang/phobos/pull/7521

gcc/d/ChangeLog:

* d-lang.cc (d_init_options): Turn on deprecation warnings by default.

libphobos/ChangeLog:

* libdruntime/MERGE: Merge upstream druntime d05ebaad.
* src/MERGE: Merge upstream phobos 021ae0df7.
* testsuite/libphobos.typeinfo/struct-align.d: Remove empty statement.

gcc/testsuite/ChangeLog:

* gdc.dg/asm1.d: Don't use deprecated asm syntax.
* gdc.dg/compilable.d: Add public to selective import.
* gdc.dg/lto/ltotests_0.d: Explicitly catch Throwable.
* gdc.dg/runnable.d: Remove empty statement.

d: Merge upstream dmd 4f1046222.

Renames OnScopeStatement to ScopeGuardStatement.

Reviewed-on: https://github.com/dlang/dmd/pull/11285

gcc/d/ChangeLog:

* dmd/MERGE: Merge upstream dmd 4f1046222.
* toir.cc (IRVisitor::visit (OnScopeGuardStatement *)): Rename to ...
(IRVisitor::visit (ScopeGuardStatement *)): ... this.

Fortran: Fix character-kind=4 substring resolution (PR95837)

Testing showed that it is always set and its value matches
always ts->kind (if available) or otherwise, if it is a variable,
the sym->ts.kind.

gcc/fortran/ChangeLog:

PR fortran/95837
* resolve.c (gfc_resolve_substring_charlen): Remove
bogus ts.kind setting for the expression.

gcc/testsuite/ChangeLog:

PR fortran/95837
* gfortran.dg/char4-subscript.f90: New test.

tree-optimization/95839 - allow CTOR vectorization without loads

This removes a premature check for enough datarefs in a basic-block
before we consider vectorizing it which leaves basic-blocks with
just vectorizable vector constructors unvectorized.  The check
is effectively done by the following check for store groups
which then also include constructors.

2020-06-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/95839
* tree-vect-slp.c (vect_slp_analyze_bb_1): Remove premature
check on the number of datarefs.

* gcc.dg/vect/bb-slp-pr95839.c: New testcase.

powerpc: Restore bootstrap for Darwin.

Darwin has signed chars and the fields in the insn_data
struct are const char, which leads to the fail.

gcc/ChangeLog:

* config/rs6000/rs6000-call.c (mma_init_builtins): Cast
the insn_data n_operands value to unsigned.

fortran: Fix ICE when 'if' clause used with 'target parallel' (PR95869)

2020-06-25  Tobias Burnus  <tobias@codesourcery.com>
    Kwok Cheung Yeung  <kcy@codesourery.com>

gcc/fortran/

PR fortran/95869
* trans-openmp.c (gfc_trans_omp_target): Use correct scoping block.

gcc/testsuite/

PR fortran/95869
* gfortran.dg/gomp/combined-if.f90 (test_target_parallel): Re-enable.
* gfortran.dg/gomp/pr95869.f90: New.

fortran: Apply if clause to all sub-constructs in combined OpenMP constructs

The unmodified 'if' clause should be applied to all the sub-constructs that
accept an 'if' clause in a combined OpenMP construct, and not just to the
'parallel' sub-construct.

2020-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

gcc/fortran/

* trans-openmp.c (gfc_split_omp_clauses): Add if clause
to target and simd sub-constructs.

gcc/testsuite/

* gfortran.dg/gomp/combined-if.f90: New.

Reviewed-by: Jakub Jelinek <jakub@redhat.com>

Always use SLP vector defs to determine insertion place

With the last vectorizable_shift patch we can now always use the
SLP vector defs to determine the vectorized stmt insertion place,
paving the way for a "verifier" for pending restructuring and
BB vectorization of reductions and other live stmts.

2020-06-25  Richard Biener  <rguenther@suse.de>

* tree-vect-slp.c (vect_schedule_slp_instance): Always use
vector defs to determine insertion place.

x96: Remove PTA_CLWB from PTA_ICELAKE_CLIENT

CLWB isn't supported on Ice Lake client.  But Ice Lake server and Tiger
Lake support it.  Move PTA_CLWB to PTA_ICELAKE_SERVER and PTA_TIGERLAKE.

PR target/95874
* config/i386/i386.h (PTA_ICELAKE_CLIENT): Remove PTA_CLWB.
(PTA_ICELAKE_SERVER): Add PTA_CLWB.
(PTA_TIGERLAKE): Add PTA_CLWB.

tree-optimization/95866 - avoid using scalar ops for vectorized shift

This avoids using the original scalar SSA operand when vectorizing
a shift with a vectorized shift operand where we know all vector
components have the same value and thus we can use a vector by
scalar shift.  Using the scalar SSA operand causes a possibly
long chain of scalar computation to be retained so it's better
to simply extract lane zero from the available vectorized shift
operand.

2020-06-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/95866
* tree-vect-stmts.c (vectorizable_shift): Reject incompatible
vectorized shift operands.  For scalar shifts use lane zero
of a vectorized shift operand.

* gcc.dg/vect/bb-slp-pr95866.c: New testcase.

gcov-tool: fix merge operation for summary

libgcc/ChangeLog:

* libgcov-driver.c (merge_summary): Remove function as its name
is misleading and doing something different.
(dump_one_gcov): Add ATTRIBUTE_UNUSED for 2 args. Take read summary
in gcov-tool.
* libgcov-util.c (curr_object_summary): Remove.
(read_gcda_file): Remove unused curr_object_summary.
(gcov_merge): Merge summaries.
* libgcov.h: Add summary argument for gcov_info struct.

VEC_COND_EXPR: clean up first argument

gcc/ChangeLog:

PR tree-optimization/95745
PR middle-end/95830
* gimple-isel.cc (gimple_expand_vec_cond_exprs): Delete dead
SSA_NAMEs used as the first argument of a VEC_COND_EXPR.  Always
return 0.
* tree-vect-generic.c (expand_vector_condition): Remove dead
SSA_NAMEs used as the first argument of a VEC_COND_EXPR.

Daily bump.

[PATCH, PR target/94954] Fix wrong codegen for vec_pack_to_short_fp32() builtin

Hi,
  Fix codegen for builtin vec_pack_to_short_fp32.  This includes adding
a define_insn for xvcvsphp, and adding a new define_expand for
convert_4f32_8f16.

2020-06-24  Will Schmidt  <will_schmidt@vnet.ibm.com>

PR target/94954

gcc
* config/rs6000/altivec.h (vec_pack_to_short_fp32): Update.
* config/rs6000/altivec.md (UNSPEC_CONVERT_4F32_8F16): New unspec.
(convert_4f32_8f16): New define_expand
* config/rs6000/rs6000-builtin.def (convert_4f32_8f16): New builtin define
and overload.
* config/rs6000/rs6000-call.c (P9V_BUILTIN_VEC_CONVERT_4F32_8F16): New
overloaded builtin entry.
* config/rs6000/vsx.md (UNSPEC_VSX_XVCVSPHP): New unspec.
(vsx_xvcvsphp): New define_insn.

gcc/testsuite
* gcc.target/powerpc/builtins-1-p9-runnable.c: Update.

outputs.exp: conditionals for split-dwarf and lto plugin

This patch introduces support for conditionals (and expr) expansions
to file lists in proc outest in outputs.exp.

The conditionals machinery is now used to guard files that are only
created by the LTO plugin, or when not using the LTO plugin.

It is also used to avoid special-casing .dwo files: the condition of
when they're expected is now encoded in the list.

Furthermore, the -g flag, that used to be specified along with
$gsplit_dwarf, is now moved into $gsplit_dwarf, so that we don't
compile with -g if -gsplit-dwarf is not needed.  This avoids having to
deal with .dSYM directories.

Further removing special cases, $aout is now dealt with in a more
general way, using expr to perform variable/string expansion.

for  gcc/testsuite/ChangeLog

PR testsuite/95416
PR testsuite/95577
* gcc.misc-tests/outputs.exp (gsplit_dwarf): Move -g into it.
(outest): Introduce conditionals and string/variable/expr
expansion.  Drop special-casing of $aout and .dwo.
(gspd): New conditional.  Guard all .dwo files with it.
(ltop): New conditional.  Guard files created by the LTO
plugin with it.  Guard files created by fat LTO compilation
with its negation.  Add a few -fno-use-linker-plugin tests
guarded by it.

c++: Handle bad pack expansion in base list. [PR96752]

This fixes PR95672 by adding the missing TYPE_PACK_EXPANSION case in
cxx_incomplete_type_diagnostic in order to avoid ICEs on diagnosing
incomplete template pack expansion cases.

Tested on powerpc64le-unknown-linux-gnu.

gcc/cp/ChangeLog:

PR c++/95672
* typeck2.c (cxx_incomplete_type_diagnostic): Add missing
TYPE_EXPANSION_PACK check for diagnosing incomplete types in
cxx_incomplete_type_diagnostic.

gcc/testsuite/ChangeLog:

PR c++/95672
* g++.dg/template/pr95672.C: New test.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>

coroutines: Copy attributes to the outlined functions [PR95518,PR95813]

We had omitted the copying of function attributes, we now copy
the used, alignment, section values from the original decal and
the complete set of function attributes.  It is likely that
some function attributes don't really make sense for coroutines,
but that can be disgnosed separately. Also mark the outlined
functions as artificial, since they are; some diagnostic
processing tests this.

gcc/cp/ChangeLog:

PR c++/95518
PR c++/95813
* coroutines.cc (act_des_fn): Copy function
attributes onto the outlined coroutine helpers.

gcc/testsuite/ChangeLog:

PR c++/95518
PR c++/95813
* g++.dg/coroutines/pr95518.C: New test.
* g++.dg/coroutines/pr95813.C: New test.

coroutines: Update tests for get-return-object errors.

We updated the handling of the errors for cases when the
ramp return cannot be constructed from the user's provided
get-return-object method.  This updates the testcases to
cover this.

gcc/testsuite/ChangeLog:

* g++.dg/coroutines/void-gro-non-class-coro.C: Moved to...
* g++.dg/coroutines/coro-bad-gro-01-void-gro-non-class-coro.C: ...here.
* g++.dg/coroutines/coro-bad-gro-00-class-gro-scalar-return.C: New test.

c++: Simplify build_over_call a bit.

It occurred to me that if we're looking up the defining base within the
conversion_path binfo, we could use the result for the conversion as well
instead of doing two separate conversions.

gcc/cp/ChangeLog:

* call.c (build_over_call): Only call build_base_path once.

c++: Fix ICE with using and virtual function. [PR95719]

conversion_path points to the base where we found the using-declaration, not
where the function is actually a member; look up the actual base.  And then
maybe look back to the derived class if the base is primary.

gcc/cp/ChangeLog:

PR c++/95719
* call.c (build_over_call): Look up the overrider in base_binfo.
* class.c (lookup_vfn_in_binfo): Look through BINFO_PRIMARY_P.

gcc/testsuite/ChangeLog:

PR c++/95719
* g++.dg/tree-ssa/final4.C: New test.

simplify-rtx: Simplify rotates by zero

2020-06-24  Roger Sayle  <roger@nextmovesoftware.com>
    Segher Boessenkool  <segher@kernel.crashing.org>

* simplify-rtx.c (simplify_unary_operation_1): Simplify rotates by 0.

simplify-rtx: Parity of parity is parity

2020-06-24  Roger Sayle  <roger@nextmovesoftware.com>

* simplify-rtx.c (simplify_unary_operation_1): Simplify
(parity (parity x)) as (parity x), i.e. PARITY is idempotent.

PR fortran/95827 - Buffer overflows with submodules and coarrays

With submodules and coarrays, name mangling results in long internal
symbols.  Enlarge internal buffer.

gcc/fortran/
PR fortran/95827
* iresolve.c (gfc_get_string): Enlarge internal buffer used in
generating the mangled name.

tree-optimization/95866 - avoid vectorizing uniform SLP subgraphs

This avoids vectorizing SLP subgraphs that just compute uniform
operations on all-same operands.  That fixes the less interesting
(but most embarrasing) part of the testcase in the PR.  On the
way it also fixed a missing matches[0] reset in the last
refactoring touching that place.

2020-06-24  Richard Biener  <rguenther@suse.de>

PR tree-optimization/95866
* tree-vect-slp.c (vect_slp_tree_uniform_p): New.
(vect_build_slp_tree_2): Properly reset matches[0],
ignore uniform constants.

* gcc.target/i386/pr95866-1.c: New testcase.

Make contrib/download_prerequisites work on AIX and OpenBSD

contrib/ChangeLog:

2020-06-11  Ilya Leoshkevich  <iii@linux.ibm.com>

* download_prerequisites: Support AIX and OpenBSD unames.
Pipe `{gzip,bzip2} -d` to `tar -xf -`.

x86: Remove brand ID check for Intel processors

Brand ID was a feature that briefly existed in some Pentium III and
Pentium 4 CPUs.  The CPUs that had non-zero brand ID still have had
valid family/model.  Brand ID just gives a marketing name for the CPU.
Remove the extra code for brand ID check.

gcc/

PR target/95660
* common/config/i386/cpuinfo.h (get_intel_cpu): Remove brand_id.
(cpu_indicator_init): Likewise.
* config/i386/driver-i386.c (host_detect_local_cpu): Updated.

gcc/testsuite/

PR target/95660
* gcc.target/i386/builtin_target.c (check_detailed): Updated.

x86: Add Cooper Lake detection with AVX512BF16

All Sky Lake family processors have the same CPUID model number, 0x55.
The differences are Cascade Lake has AVX512VNNI and Cooper Lake has
AVX512VNNI + AVX512BF16.  Check AVX512BF16 for Cooper Lake.

PR target/95774
* common/config/i386/cpuinfo.h (get_intel_cpu): Add Cooper Lake
detection with AVX512BF16.

x86: Share _isa_names_table and use cpuinfo.h

Both driver-i386.c and libgcc use CPUID to detect the processor name
as well as available ISAs.  To detect the same processor or ISAs, the
same detection logic is duplicated in 2 places.  Sometimes only one place
was up to date or got it right.  Sometimes both places got it wrong.

1. Add common/config/i386/i386-isas.h to define _isa_names_table.
2. Use isa_names_table to auto-generate ISA command-line options.
3. Use isa_names_table to auto-generate __builtin_cpu_supports tests.
4. Use common/config/i386/cpuinfo.h to check available ISAs and detect
newer Intel processors in driver-i386.c and builtin_target.c.
5. Detection of AMD processors and older processors in driver-i386.c is
unchanged.

gcc/

PR target/95843
* common/config/i386/i386-isas.h: New file.  Extracted from
gcc/config/i386/i386-builtins.c.
(_isa_names_table): Add option.
(ISA_NAMES_TABLE_START): New.
(ISA_NAMES_TABLE_END): Likewise.
(ISA_NAMES_TABLE_ENTRY): Likewise.
(isa_names_table): Defined with ISA_NAMES_TABLE_START,
ISA_NAMES_TABLE_END and ISA_NAMES_TABLE_ENTRY.  Add more ISAs
from enum processor_features.
* config/i386/driver-i386.c: Include
"common/config/i386/cpuinfo.h" and
"common/config/i386/i386-isas.h".
(has_feature): New macro.
(host_detect_local_cpu): Call cpu_indicator_init to get CPU
features.  Use has_feature to detect processor features.  Call
Call get_intel_cpu to get the newer Intel CPU name.  Use
isa_names_table to generate command-line options.
* config/i386/i386-builtins.c: Include
"common/config/i386/i386-isas.h".
(_arch_names_table): Removed.
(isa_names_table): Likewise.

gcc/testsuite/

PR target/95843
* gcc.target/i386/builtin_target.c: Include <stdlib.h>,
../../../common/config/i386/i386-cpuinfo.h and
../../../common/config/i386/cpuinfo.h.
(check_amd_cpu_model): Removed.
(check_intel_cpu_model): Likewise,
(CHECK___builtin_cpu_is): New.
(gcc_assert): New.  Defined as assert.
(gcc_unreachable): New.  Defined as abort.
(inline): New.  Defined as empty.
(ISA_NAMES_TABLE_START): Likewise.
(ISA_NAMES_TABLE_END): Likewise.
(ISA_NAMES_TABLE_ENTRY): New.
(check_features): Include
"../../../common/config/i386/i386-isas.h".
(check_detailed): Call cpu_indicator_init.  Always call
check_features.  Call get_amd_cpu instead of check_amd_cpu_model.
Call get_intel_cpu instead of check_intel_cpu_model.

Fix typo in ChangeLog

x86: Move cpuinfo.h from libgcc to common/config/i386

Both x86 backend and libgcc define enum processor_features.  libgcc sets
enum processor_feature and x86 backend checks enum processor_feature.
They are very easy out of sync and it has happened multiple times in the
past.

1. Move cpuinfo.h from libgcc to common/config/i386 so that we can share
the same enum processor_features in x86 backend and libgcc.
2. Change __cpu_features2 to an array to support more processor features.
3. Add more processor features to enum processor_features.

gcc/

PR target/95259
* common/config/i386/cpuinfo.h: New file.
(__processor_model): Moved from libgcc/config/i386/cpuinfo.h.
(__processor_model2): New.
(CHECK___builtin_cpu_is): New.  Defined as empty if not defined.
(has_cpu_feature): New function.
(set_cpu_feature): Likewise.
(get_amd_cpu): Moved from libgcc/config/i386/cpuinfo.c.  Use
CHECK___builtin_cpu_is.  Return AMD CPU name.
(get_intel_cpu): Moved from libgcc/config/i386/cpuinfo.c.  Use
Use CHECK___builtin_cpu_is.  Return Intel CPU name.
(get_available_features): Moved from libgcc/config/i386/cpuinfo.c.
Also check FEATURE_3DNOW, FEATURE_3DNOWP, FEATURE_ADX,
FEATURE_ABM, FEATURE_CLDEMOTE, FEATURE_CLFLUSHOPT, FEATURE_CLWB,
FEATURE_CLZERO, FEATURE_CMPXCHG16B, FEATURE_CMPXCHG8B,
FEATURE_ENQCMD, FEATURE_F16C, FEATURE_FSGSBASE, FEATURE_FXSAVE,
FEATURE_HLE, FEATURE_IBT, FEATURE_LAHF_LM, FEATURE_LM,
FEATURE_LWP, FEATURE_LZCNT, FEATURE_MOVBE, FEATURE_MOVDIR64B,
FEATURE_MOVDIRI, FEATURE_MWAITX, FEATURE_OSXSAVE,
FEATURE_PCONFIG, FEATURE_PKU, FEATURE_PREFETCHWT1, FEATURE_PRFCHW,
FEATURE_PTWRITE, FEATURE_RDPID, FEATURE_RDRND, FEATURE_RDSEED,
FEATURE_RTM, FEATURE_SERIALIZE, FEATURE_SGX, FEATURE_SHA,
FEATURE_SHSTK, FEATURE_TBM, FEATURE_TSXLDTRK, FEATURE_VAES,
FEATURE_WAITPKG, FEATURE_WBNOINVD, FEATURE_XSAVE, FEATURE_XSAVEC,
FEATURE_XSAVEOPT and FEATURE_XSAVES
(cpu_indicator_init): Moved from libgcc/config/i386/cpuinfo.c.
Also update cpu_model2.
* common/config/i386/i386-cpuinfo.h (processor_vendor): Add
Add VENDOR_CENTAUR, VENDOR_CYRIX and VENDOR_NSC.
(processor_features): Moved from gcc/config/i386/i386-builtins.c.
Renamed F_XXX to FEATURE_XXX.  Add FEATURE_3DNOW, FEATURE_3DNOWP,
FEATURE_ADX, FEATURE_ABM, FEATURE_CLDEMOTE, FEATURE_CLFLUSHOPT,
FEATURE_CLWB, FEATURE_CLZERO, FEATURE_CMPXCHG16B,
FEATURE_CMPXCHG8B, FEATURE_ENQCMD, FEATURE_F16C,
FEATURE_FSGSBASE, FEATURE_FXSAVE, FEATURE_HLE, FEATURE_IBT,
FEATURE_LAHF_LM, FEATURE_LM, FEATURE_LWP, FEATURE_LZCNT,
FEATURE_MOVBE, FEATURE_MOVDIR64B, FEATURE_MOVDIRI,
FEATURE_MWAITX, FEATURE_OSXSAVE, FEATURE_PCONFIG,
FEATURE_PKU, FEATURE_PREFETCHWT1, FEATURE_PRFCHW,
FEATURE_PTWRITE, FEATURE_RDPID, FEATURE_RDRND, FEATURE_RDSEED,
FEATURE_RTM, FEATURE_SERIALIZE, FEATURE_SGX, FEATURE_SHA,
FEATURE_SHSTK, FEATURE_TBM, FEATURE_TSXLDTRK, FEATURE_VAES,
FEATURE_WAITPKG, FEATURE_WBNOINVD, FEATURE_XSAVE, FEATURE_XSAVEC,
FEATURE_XSAVEOPT, FEATURE_XSAVES and CPU_FEATURE_MAX.
(SIZE_OF_CPU_FEATURES): New.
* config/i386/i386-builtins.c (processor_features): Removed.
(isa_names_table): Replace F_XXX with FEATURE_XXX.
(fold_builtin_cpu): Change __cpu_features2 to an array.

libgcc/

PR target/95259
* config/i386/cpuinfo.c: Don't include "cpuinfo.h".  Include
"common/config/i386/i386-cpuinfo.h" and
"common/config/i386/cpuinfo.h".
(__cpu_features2): Changed to array.
(get_amd_cpu): Removed.
(get_intel_cpu): Likewise.
(get_available_features): Likewise.
(__cpu_indicator_init): Call cpu_indicator_init.
* config/i386/cpuinfo.h: Removed.

libstdc++: Fix std::from_chars to ignore leading zeros in base 2

The parser for binary numbers returned an error if the entire string
contains more digits than the result type. Leading zeros should be
ignored.

libstdc++-v3/ChangeLog:

* include/std/charconv (__from_chars_binary): Ignore leading zeros.
* testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
not just 10 and 16.
* testsuite/20_util/from_chars/3.cc: New test.

libstdc++: Fix warnings with -Wsystem-headers

libstdc++-v3/ChangeLog:

* include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
* include/std/charconv (__detail::__to_chars): Avoid
-Wsign-compare warning.

libstdc++: Fix std::to_chars buffer overflow (PR 95851)

The __detail::__to_chars_2 function assumes it won't be called with zero
values. However, when the output buffer is empty the caller doesn't
handle zero values correctly, and calls __to_chars_2 with a zero value,
resulting in an overflow of the empty buffer.

The __detail::__to_chars_i function should just return immediately for
an empty buffer, and otherwise ensure zero values are handled properly.

libstdc++-v3/ChangeLog:

PR libstdc++/95851
* include/std/charconv (__to_chars_i): Check for zero-sized
buffer unconditionally.
* testsuite/20_util/to_chars/95851.cc: New test.

x86: Fold arch_names_table into processor_alias_table

In i386-builtins.c, arch_names_table is used to to map architecture name
string to internal model.  A switch statement is used to map internal
processor name to architecture name string and internal priority.

model and priority are added to processor_alias_table so that a single
entry contains architecture name string, internal processor name,
internal model and internal priority.  6 entries are appended for
i386-builtins.c, which have special architecture name strings: amd,
amdfam10h, amdfam15h, amdfam17h, shanghai and istanbul, and pta_size is
adjusted to exclude them.  Entries which are not used by i386-builtins.c
have internal model 0.  P_PROC_DYNAMIC is added to internal priority to
make entries with dynamic architecture name string or priority.

PR target/95842
* common/config/i386/i386-common.c (processor_alias_table): Add
processor model and priority to each entry.
(pta_size): Updated with -6.
(num_arch_names): New.
* common/config/i386/i386-cpuinfo.h: New file.
* config/i386/i386-builtins.c (feature_priority): Removed.
(processor_model): Likewise.
(_arch_names_table): Likewise.
(arch_names_table): Likewise.
(_isa_names_table): Replace P_ZERO with P_NONE.
(get_builtin_code_for_version): Replace P_ZERO with P_NONE.  Use
processor_alias_table.
(fold_builtin_cpu): Replace arch_names_table with
processor_alias_table.
* config/i386/i386.h: Include "common/config/i386/i386-cpuinfo.h".
(pta): Add model and priority.
(num_arch_names): New.

emit SLP vectorized loads earlier

This makes sure to emit SLP vectorized loads where the first scalar
load is.  This makes SLP dependence checking more powerful because
hoisting loads can use TBAA and it increases the freedom for
vector placement when there are constraints from live lanes.

Vectorized shifts block inserting vectorized stmts always after
vectorized defs because it ends up using the original scalar
operand even when the SLP graph indicates the shift operand
is vectorized (and we actually emit and cost those stmts).

vect_slp_analyze_and_verify_node_alignment shows we need alignment
for too many places, this is a temporary solution and my plan
is to have a single meta-info for a dataref group instead
(also getting rid of DR_GROUP_FIRST/NEXT_ELEMENT).

2020-06-24  Richard Biener  <rguenther@suse.de>

* tree-vectorizer.h (vect_find_first_scalar_stmt_in_slp):
Declare.
* tree-vect-data-refs.c (vect_preserves_scalar_order_p):
Simplify for new position of vectorized SLP loads.
(vect_slp_analyze_node_dependences): Adjust for it.
(vect_slp_analyze_and_verify_node_alignment): Compute alignment
for the first stmts dataref.
* tree-vect-slp.c (vect_find_first_scalar_stmt_in_slp): New.
(vect_schedule_slp_instance): Emit loads before the
first scalar stmt.
* tree-vect-stmts.c (vectorizable_load): Do what the comment
says and use vect_find_first_scalar_stmt_in_slp.

tree-optimization/95856 fix vect_stmt_dominates_stmt_p at BB region boundary

The following adjusts vect_stmt_dominates_stmt_p to honor out-of-region
stmts we run into which have UID -1u.

2020-06-24  Richard Biener  <rguenther@suse.de>

PR tree-optimization/95856
* tree-vectorizer.c (vect_stmt_dominates_stmt_p): Honor
region marker -1u.

* gcc.dg/vect/pr95856.c: New testcase.

fold-const: Fix A <= 0 ? A : -A folding [PR95810]

We folded A <= 0 ? A : -A into -ABS (A), which is for signed integral types
incorrect - can invoke on INT_MIN UB twice, once on ABS and once on its
negation.

The following patch fixes it by instead folding it to (type)-ABSU (A).

2020-06-24  Jakub Jelinek  <jakub@redhat.com>

PR middle-end/95810
* fold-const.c (fold_cond_expr_with_comparison): Optimize
A <= 0 ? A : -A into (type)-absu(A) rather than -abs(A).

* gcc.dg/ubsan/pr95810.c: New test.

openmp: Fix two pastos in non-rect loop OpenMP lowering.

2020-06-24  Jakub Jelinek  <jakub@redhat.com>

* omp-low.c (lower_omp_for): Fix two pastos.

options: Properly compare string options.

gcc/ChangeLog:

* optc-save-gen.awk: Compare string options in cl_optimization_compare
by strcmp.

Daily bump.

Allow --with-cpu=power10

Update config.gcc so that we can use --with-cpu=power10.
Also remove "future" from the 64-bit check as Segher suggests.

* config.gcc: Identify power10 as a 64-bit processor and as valid
for --with-cpu and --with-tune.

c++: Improve CTAD for aggregates [PR93976]

P2082R1 adjusted the rules for class template argument deduction for an
aggregate to better handle arrays and pack expansions.

gcc/cp/ChangeLog:

PR c++/93976
Implement C++20 P2082R1, Fixing CTAD for aggregates.
* cp-tree.h (TPARMS_PRIMARY_TEMPLATE): Split out from...
(DECL_PRIMARY_TEMPLATE): ...here.
(builtin_guide_p): Declare.
* decl.c (reshape_init_class): Handle bases of a template.
(reshape_init_r): An array with dependent bound takes a single
initializer.
* pt.c (tsubst_default_argument): Shortcut {}.
(unify_pack_expansion): Allow omitted arguments to trailing pack.
(builtin_guide_p): New.
(collect_ctor_idx_types): Give a trailing pack a {} default
argument.  Handle arrays better.

gcc/testsuite/ChangeLog:

* g++.dg/cpp2a/class-deduction-aggr3.C: New test.
* g++.dg/cpp2a/class-deduction-aggr4.C: New test.

Make forall statement in testsuite conforming.

The recent patch for dependency checking introduced one failing test
case for pointer assignments in a forall statement.  This test case
was invalid because of an interdependency in a forall statement.
This patch fixes that by removing that dependency.

gcc/testsuite/ChangeLog:

* gfortran.fortran-torture/execute/forall_5.f90: Make forall
statement conforming.

coroutines: Add a cleanup expression for g-r-o when needed [PR95477].

The PR reports that we fail to destroy the object initially created from
the get-return-object call.  Fixed by adding a cleanup when the DTOR is
non-trivial.  In addition, to meet the specific wording that the call to
get_return_object creates the glvalue for the return, we must construct
that in-place in the return object to avoid a second copy/move CTOR.

gcc/cp/ChangeLog:

PR c++/95477
* coroutines.cc (morph_fn_to_coro): Apply a cleanup to
the get return object when the DTOR is non-trivial.

gcc/testsuite/ChangeLog:

PR c++/95477
* g++.dg/coroutines/pr95477.C: New test.
* g++.dg/coroutines/void-gro-non-class-coro.C: New test.

build: Change conditional include and empty.mk to -include in Makefiles

GNU Make supports "-include" keyword to prevent warnings and errors due to
inclusion of non-existent files.  This patch changes gcc/ and libgcc/ to use
"-include" in place of the historical conditional inclusion and use of
empty.mk work-arounds.

gcc/ChangeLog

2020-06-23  David Edelsohn  <dje.gcc@gmail.com>

* Makefile.in (LANG_MAKEFRAGS): Same.
(tmake_file): Use -include.
(xmake_file): Same.

libgcc/ChangeLog

2020-06-23  David Edelsohn  <dje.gcc@gmail.com>

* Makefile.in: Remove uses of empty.mk. Use -include.
* config/avr/t-avr: Use -include.
* empty.mk: Delete.

libgcc/config/avr/libf7/ChangeLog

2020-06-23  David Edelsohn  <dje.gcc@gmail.com>

* t-libf7: Same.

libiberty, include: add bsearch_r

libctf wants a bsearch that takes a void * arg pointer to avoid a
nonportable use of __thread.

bsearch_r is required, not optional, at this point because as far as I
can see this obvious-sounding function is not implemented by anyone's
libc.  We can easily move it to AC_LIBOBJ later if it proves necessary
to do so.

include/
* libiberty.h (bsearch_r): New.
libiberty/
* bsearch_r.c: New file.
* Makefile.in (CFILES): Add bsearch_r.c.
(REQUIRED_OFILES): Add bsearch_r.o.
* functions.texi: Regenerate.

Remove superfluous space

gcc/ada/ChangeLog:
* gcc-interface/utils2.c (build_binary_op): Remove space.

Fix memory corruption with vector and variant record

The problem is that Has_Constrained_Partial_View must be tested on the
base type of the designated type of an allocator.

gcc/ada/ChangeLog:
* gcc-interface/trans.c (gnat_to_gnu) <N_Allocator>: Minor tweaks.
Call Has_Constrained_Partial_View on base type of designated type.

Emit debug info for integral variables first

This makes it possible for global dynamic types to reference the DIE of
these integral variables.

gcc/ada/ChangeLog:
* gcc-interface/utils.c (gnat_write_global_declarations): Output
integral global variables first and the imported functions later.

Minor tweak to elaborate_expression_1

gcc/ada/ChangeLog:
* gcc-interface/decl.c (elaborate_expression_1): When GNAT encodings
are not used, do not create a variable for debug info purposes if
the expression is itself a user-declared variable.

Streamline implementation of renaming in gigi

The main changes are 1) the bulk of the implementation is put back entirely
in gnat_to_gnu_entity and 2) the handling of lvalues is unified, i.e. it no
longer depends on the Materialize_Entity flag being present on the entity.

gcc/ada/ChangeLog:
* gcc-interface/ada-tree.h (DECL_RENAMED_OBJECT): Delete.
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Always use
the stabilized reference directly for renaming and create a variable
pointing to it separately if requested.
* gcc-interface/misc.c (gnat_print_decl): Adjust for deletion.
* gcc-interface/trans.c (Identifier_to_gnu): Likewise.
(gnat_to_gnu) <N_Object_Renaming_Declaration>:
Do not deal with side-effects here.
<N_Exception_Renaming_Declaration>: Likewise.

Minor cleanup in elaborate_expression

gcc/ada/ChangeLog:
* gcc-interface/decl.c (elaborate_expression): Replace calls to
Is_OK_Static_Expression with Compile_Time_Known_Value.

Emit user subtypes with -fgnat-encodings=minimal

This changes the compiler to emit debug info for user-defined subtypes
with -fgnat-encodings=minimal, as they might be needed by the debugger.

gcc/ada/ChangeLog:
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Subtype>: Set
debug type to the base type and only if the subtype is artificial.

Remove unintended checkin

2020-06-23  Michael Meissner  <meissner@linux.ibm.com>

* REVISION: Delete file meant for a private branch.

Minor adjustment in assignment case

gcc/ada/ChangeLog:
* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>: Do
not test Is_Bit_Packed_Array in the memset path.

arm: PR target/95646: Do not clobber callee saved registers with CMSE

As reported in bugzilla when the -mcmse option is used while compiling for size
(-Os) with a thumb-1 target the generated code will clear the registers r7-r10.
These however are callee saved and should be preserved accross ABI boundaries.
The reason this happens is because these registers are made "fixed" when
optimising for size with Thumb-1 in a way to make sure they are not used, as
pushing and popping hi-registers requires extra moves to and from LO_REGS.

To fix this, this patch uses 'callee_saved_reg_p', which accounts for this
optimisation, instead of 'call_used_or_fixed_reg_p'. Be aware of
'callee_saved_reg_p''s definition, as it does still take call used registers
into account, which aren't callee_saved in my opinion, so it is a rather
misnoemer, works in our advantage here though as it does exactly what we need.

Regression tested on arm-none-eabi.

Is this OK for trunk? (Will eventually backport to previous versions if stable.)

gcc/ChangeLog:
2020-06-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

PR target/95646
* config/arm/arm.c: (cmse_nonsecure_entry_clear_before_return): Use
'callee_saved_reg_p' instead of 'calL_used_or_fixed_reg_p'.

gcc/testsuite/ChangeLog:
2020-06-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

PR target/95646
* gcc.target/arm/pr95646.c: New test.

libstdc++: Adjust std::from_chars negative tests

Also test with an enumeration type. Move the dg-error directives outside
the #if block, because DejaGnu would process them whether or not wchar_t
support is present.

libstdc++-v3/ChangeLog:

* testsuite/20_util/from_chars/1_c++20_neg.cc: Check enumeration
type.
* testsuite/20_util/from_chars/1_neg.cc: Likewise. Move dg-error
directives outside preprocessor condition.

handle dumpbase in offloading, adjust testsuite

Pass dumpbase on to mkoffloads and their offload-target compiler runs,
using different suffixes for different offloading targets.
Obey -save-temps in naming temporary files while at that.

Adjust the testsuite offload dump scanning machinery to look for dump
files named under the new conventions, iterating internally over all
configured offload targets, or recognizing libgomp's testsuite's own
iteration.

for  gcc/ChangeLog

* collect-utils.h (dumppfx): New.
* collect-utils.c (dumppfx): Likewise.
* lto-wrapper.c (run_gcc): Set global dumppfx.
(compile_offload_image): Pass a -dumpbase on to mkoffload.
* config/nvptx/mkoffload.c (ptx_dumpbase): New.
(main): Handle incoming -dumpbase.  Set ptx_dumpbase.  Obey
save_temps.
(compile_native): Pass -dumpbase et al to compiler.
* config/gcn/mkoffload.c (gcn_dumpbase): New.
(main): Handle incoming -dumpbase.  Set gcn_dumpbase.  Obey
save_temps.  Pass -dumpbase et al to offload target compiler.
(compile_native): Pass -dumpbase et al to compiler.

for  gcc/testsuite/ChangeLog

* lib/scanoffload.exp: New.
* lib/scanoffloadrtl.exp: Load it.  Replace ".o" with ""
globally, and use scanoffload's scoff wrapper to fill it in.
* lib/scanoffloadtree.exp: Likewise.

for libgomp/ChangeLog

* testsuite/lib/libgomp.exp: Load gcc lib scanoffload.exp.
* testsuite/lib/libgomp-dg.exp: Drop now-obsolete -save-temps.

libstdc++: Implement P1972R2 changes to std::variant (PR 95832)

G++ implements P1972R2 since r11-1597-0ca22d027ecc and so we no longer
need the P0608R3 special case to prevent narrowing conversions to bool.

Since non-GNU compilers don't necessarily implment P1972R2 yet, this
may cause a regression for those compilers. There is no feature-test
macro we can use to detect it though, so we'll have to live with it.

libstdc++-v3/ChangeLog:

PR libstdc++/95832
* include/std/variant (__detail::__variant::_Build_FUN): Remove
partial specialization to prevent narrowing conversions to bool.
* testsuite/20_util/variant/compile.cc: Test non-narrowing
conversions to bool.
* testsuite/20_util/variant/run.cc: Likewise.

libstdc++: Regenerate makefiles

libstdc++-v3/ChangeLog:

* doc/Makefile.in: Regenerate.
* include/Makefile.in: Regenerate.
* libsupc++/Makefile.in: Regenerate.
* po/Makefile.in: Regenerate.
* python/Makefile.in: Regenerate.
* src/Makefile.in: Regenerate.
* src/c++11/Makefile.in: Regenerate.
* src/c++17/Makefile.in: Regenerate.
* src/c++98/Makefile.in: Regenerate.
* src/filesystem/Makefile.in: Regenerate.
* testsuite/Makefile.in: Regenerate.

Add REVISION

gcc/
2020-06-23  Michael Meissner  <meissner@linux.ibm.com>

* REVISION: New file.

Handle AR_FULL vs. AR_FULL in dependency checking.

Previously, handling of full vs. full references failed to take
AR_FULL vs. AR_FULL into account.  A change in dependency
checking in gcc 10 created a code path that could lead there;
with this patch, this is now correctly handled.

gcc/fortran/ChangeLog:

2020-06-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/95812
* dependency.c (ref_same_as_full_array): Handle case of AR_FULL
vs. AR_FULL.

gcc/testsuite/ChangeLog:

2020-06-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/95812
* gfortran.dg/dependency_59.f90: New test.

Fortran  :  ICE in gfc_validate_kind PR95586

Report syntax error for invalid letter-spec in IMPLICIT statements
for derived types and not an ICE.

Original patch by Steve Kargl.  Added test cases based on those
provided by G. Steinmetz  in the PR.

2020-06-23  Steven G. Kargl  <kargl@gcc.gnu.org>

gcc/fortran/

PR fortran/95586
* decl.c (gfc_match_implicit): Only perform else branch if
the type spect is not BT_DERIVED.

2020-06-23  Mark Eggleston  <markeggleston@gcc.gnu.org>

gcc/testsuite/

PR fortran/95586
* gfortran.dg/pr95586_1.f90: New test.
* gfortran.dg/pr95586_2.f90: New test.

Daily bump.

build: Use -include instead of conditional include.

Automake and GNU Make both use the endif keyword, which conflicts and
elicits an error for matching if/ifdef and endif.

This patch changes the conditional include to use "-include" to prevent
a warning about a possible empty tmake_file.

libgomp/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

* Makefile.am: Use -include.
* Makefile.in: Regenerate.

libatomic/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

* Makefile.am: Use -include.
* Makefile.in: Regenerate.

libstdc++-v3/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

* Makefile.am: Use -include.
* Makefile.in: Regenerate.

libgfortran/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

* Makefile.am: Use -include.
* Makefile.in: Regenerate.

rs6000: Testsuite changes to go with the previous commit

The "sanity checker" thinks it knows better than maintainers, and there
is no override.

2020-06-22  Segher Boessenkool  <segher@kernel.crashing.org>

gcc/testsuite/ChangeLog:

* gcc.target/powerpc/cfuged-0.c: I protest.
* gcc.target/powerpc/cfuged-1.c: I protest.
* gcc.target/powerpc/clone3.c: I protest.
* gcc.target/powerpc/cntlzdm-0.c: I protest.
* gcc.target/powerpc/cntlzdm-1.c: I protest.
* gcc.target/powerpc/cnttzdm-0.c: I protest.
* gcc.target/powerpc/cnttzdm-1.c: I protest.
* gcc.target/powerpc/cpu-future.c: I protest.
* gcc.target/powerpc/dg-future-0.c: I protest.
* gcc.target/powerpc/dg-future-1.c: I protest.
* gcc.target/powerpc/localentry-1.c: I protest.
* gcc.target/powerpc/localentry-detect-1.c: I protest.
* gcc.target/powerpc/mma-builtin-1.c: I protest.
* gcc.target/powerpc/mma-builtin-2.c: I protest.
* gcc.target/powerpc/mma-builtin-3.c: I protest.
* gcc.target/powerpc/mma-builtin-4.c: I protest.
* gcc.target/powerpc/mma-builtin-5.c: I protest.
* gcc.target/powerpc/mma-builtin-6.c: I protest.
* gcc.target/powerpc/notoc-direct-1.c: I protest.
* gcc.target/powerpc/pcrel-sibcall-1.c: I protest.
* gcc.target/powerpc/pdep-0.c: I protest.
* gcc.target/powerpc/pdep-1.c: I protest.
* gcc.target/powerpc/pextd-0.c: I protest.
* gcc.target/powerpc/pextd-1.c: I protest.
* gcc.target/powerpc/pr93122.c: I protest.
* gcc.target/powerpc/pr94740.c: I protest.
* gcc.target/powerpc/setbceq.c: I protest.
* gcc.target/powerpc/setbcge.c: I protest.
* gcc.target/powerpc/setbcgt.c: I protest.
* gcc.target/powerpc/setbcle.c: I protest.
* gcc.target/powerpc/setbclt.c: I protest.
* gcc.target/powerpc/setbcne.c: I protest.
* gcc.target/powerpc/setnbceq.c: I protest.
* gcc.target/powerpc/setnbcge.c: I protest.
* gcc.target/powerpc/setnbcgt.c: I protest.
* gcc.target/powerpc/setnbcle.c: I protest.
* gcc.target/powerpc/setnbclt.c: I protest.
* gcc.target/powerpc/setnbcne.c: I protest.
* gcc.target/powerpc/vec-cfuged-0.c: I protest.
* gcc.target/powerpc/vec-cfuged-1.c: I protest.
* gcc.target/powerpc/vec-clrl-0.c: I protest.
* gcc.target/powerpc/vec-clrl-1.c: I protest.
* gcc.target/powerpc/vec-clrl-2.c: I protest.
* gcc.target/powerpc/vec-clrl-3.c: I protest.
* gcc.target/powerpc/vec-clrr-0.c: I protest.
* gcc.target/powerpc/vec-clrr-1.c: I protest.
* gcc.target/powerpc/vec-clrr-2.c: I protest.
* gcc.target/powerpc/vec-clrr-3.c: I protest.
* gcc.target/powerpc/vec-cntlzm-0.c: I protest.
* gcc.target/powerpc/vec-cntlzm-1.c: I protest.
* gcc.target/powerpc/vec-cnttzm-0.c: I protest.
* gcc.target/powerpc/vec-cnttzm-1.c: I protest.
* gcc.target/powerpc/vec-extracth-0.c: I protest.
* gcc.target/powerpc/vec-extracth-1.c: I protest.
* gcc.target/powerpc/vec-extracth-2.c: I protest.
* gcc.target/powerpc/vec-extracth-3.c: I protest.
* gcc.target/powerpc/vec-extracth-4.c: I protest.
* gcc.target/powerpc/vec-extracth-5.c: I protest.
* gcc.target/powerpc/vec-extracth-6.c: I protest.
* gcc.target/powerpc/vec-extracth-7.c: I protest.
* gcc.target/powerpc/vec-extracth-be-0.c: I protest.
* gcc.target/powerpc/vec-extracth-be-1.c: I protest.
* gcc.target/powerpc/vec-extracth-be-2.c: I protest.
* gcc.target/powerpc/vec-extracth-be-3.c: I protest.
* gcc.target/powerpc/vec-extractl-0.c: I protest.
* gcc.target/powerpc/vec-extractl-1.c: I protest.
* gcc.target/powerpc/vec-extractl-2.c: I protest.
* gcc.target/powerpc/vec-extractl-3.c: I protest.
* gcc.target/powerpc/vec-extractl-4.c: I protest.
* gcc.target/powerpc/vec-extractl-5.c: I protest.
* gcc.target/powerpc/vec-extractl-6.c: I protest.
* gcc.target/powerpc/vec-extractl-7.c: I protest.
* gcc.target/powerpc/vec-extractl-be-0.c: I protest.
* gcc.target/powerpc/vec-extractl-be-1.c: I protest.
* gcc.target/powerpc/vec-extractl-be-2.c: I protest.
* gcc.target/powerpc/vec-extractl-be-3.c: I protest.
* gcc.target/powerpc/vec-gnb-0.c: I protest.
* gcc.target/powerpc/vec-gnb-1.c: I protest.
* gcc.target/powerpc/vec-gnb-2.c: I protest.
* gcc.target/powerpc/vec-pdep-0.c: I protest.
* gcc.target/powerpc/vec-pdep-1.c: I protest.
* gcc.target/powerpc/vec-pext-0.c: I protest.
* gcc.target/powerpc/vec-pext-1.c: I protest.
* gcc.target/powerpc/vec-stril-0.c: I protest.
* gcc.target/powerpc/vec-stril-1.c: I protest.
* gcc.target/powerpc/vec-stril-10.c: I protest.
* gcc.target/powerpc/vec-stril-11.c: I protest.
* gcc.target/powerpc/vec-stril-12.c: I protest.
* gcc.target/powerpc/vec-stril-13.c: I protest.
* gcc.target/powerpc/vec-stril-14.c: I protest.
* gcc.target/powerpc/vec-stril-15.c: I protest.
* gcc.target/powerpc/vec-stril-16.c: I protest.
* gcc.target/powerpc/vec-stril-17.c: I protest.
* gcc.target/powerpc/vec-stril-18.c: I protest.
* gcc.target/powerpc/vec-stril-19.c: I protest.
* gcc.target/powerpc/vec-stril-2.c: I protest.
* gcc.target/powerpc/vec-stril-20.c: I protest.
* gcc.target/powerpc/vec-stril-21.c: I protest.
* gcc.target/powerpc/vec-stril-22.c: I protest.
* gcc.target/powerpc/vec-stril-23.c: I protest.
* gcc.target/powerpc/vec-stril-3.c: I protest.
* gcc.target/powerpc/vec-stril-4.c: I protest.
* gcc.target/powerpc/vec-stril-5.c: I protest.
* gcc.target/powerpc/vec-stril-6.c: I protest.
* gcc.target/powerpc/vec-stril-7.c: I protest.
* gcc.target/powerpc/vec-stril-8.c: I protest.
* gcc.target/powerpc/vec-stril-9.c: I protest.
* gcc.target/powerpc/vec-stril_p-0.c: I protest.
* gcc.target/powerpc/vec-stril_p-1.c: I protest.
* gcc.target/powerpc/vec-stril_p-10.c: I protest.
* gcc.target/powerpc/vec-stril_p-11.c: I protest.
* gcc.target/powerpc/vec-stril_p-2.c: I protest.
* gcc.target/powerpc/vec-stril_p-3.c: I protest.
* gcc.target/powerpc/vec-stril_p-4.c: I protest.
* gcc.target/powerpc/vec-stril_p-5.c: I protest.
* gcc.target/powerpc/vec-stril_p-6.c: I protest.
* gcc.target/powerpc/vec-stril_p-7.c: I protest.
* gcc.target/powerpc/vec-stril_p-8.c: I protest.
* gcc.target/powerpc/vec-stril_p-9.c: I protest.
* gcc.target/powerpc/vec-strir-0.c: I protest.
* gcc.target/powerpc/vec-strir-1.c: I protest.
* gcc.target/powerpc/vec-strir-10.c: I protest.
* gcc.target/powerpc/vec-strir-11.c: I protest.
* gcc.target/powerpc/vec-strir-12.c: I protest.
* gcc.target/powerpc/vec-strir-13.c: I protest.
* gcc.target/powerpc/vec-strir-14.c: I protest.
* gcc.target/powerpc/vec-strir-15.c: I protest.
* gcc.target/powerpc/vec-strir-16.c: I protest.
* gcc.target/powerpc/vec-strir-17.c: I protest.
* gcc.target/powerpc/vec-strir-18.c: I protest.
* gcc.target/powerpc/vec-strir-19.c: I protest.
* gcc.target/powerpc/vec-strir-2.c: I protest.
* gcc.target/powerpc/vec-strir-20.c: I protest.
* gcc.target/powerpc/vec-strir-21.c: I protest.
* gcc.target/powerpc/vec-strir-22.c: I protest.
* gcc.target/powerpc/vec-strir-23.c: I protest.
* gcc.target/powerpc/vec-strir-3.c: I protest.
* gcc.target/powerpc/vec-strir-4.c: I protest.
* gcc.target/powerpc/vec-strir-5.c: I protest.
* gcc.target/powerpc/vec-strir-6.c: I protest.
* gcc.target/powerpc/vec-strir-7.c: I protest.
* gcc.target/powerpc/vec-strir-8.c: I protest.
* gcc.target/powerpc/vec-strir-9.c: I protest.
* gcc.target/powerpc/vec-strir_p-0.c: I protest.
* gcc.target/powerpc/vec-strir_p-1.c: I protest.
* gcc.target/powerpc/vec-strir_p-10.c: I protest.
* gcc.target/powerpc/vec-strir_p-11.c: I protest.
* gcc.target/powerpc/vec-strir_p-2.c: I protest.
* gcc.target/powerpc/vec-strir_p-3.c: I protest.
* gcc.target/powerpc/vec-strir_p-4.c: I protest.
* gcc.target/powerpc/vec-strir_p-5.c: I protest.
* gcc.target/powerpc/vec-strir_p-6.c: I protest.
* gcc.target/powerpc/vec-strir_p-7.c: I protest.
* gcc.target/powerpc/vec-strir_p-8.c: I protest.
* gcc.target/powerpc/vec-strir_p-9.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-0.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-1.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-10.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-2.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-3.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-4.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-5.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-6.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-7.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-8.c: I protest.
* gcc.target/powerpc/vec-ternarylogic-9.c: I protest.
* gcc.target/powerpc/xxgenpc-runnable.c: I protest.
* lib/target-supports.exp: Stuff.

rs6000: Rename future to power10

This renames the command line options, the internal names, and mentions
in the comments, from "future" to "power10".  Also, the file "future.md"
is renamed.

The predefined user macro _ARCH_PWR_FUTURE is renamed to _ARCH_PWR10.

"Future architecture" is renamed to "ISA 3.1".

2020-06-22  Segher Boessenkool  <segher@kernel.crashing.org>

gcc/ChangeLog:

* config/rs6000/altivec.h: Use _ARCH_PWR10, not _ARCH_PWR_FUTURE.
Update comment for ISA 3.1.
* config/rs6000/altivec.md: Use TARGET_POWER10, not TARGET_FUTURE.
* config/rs6000/driver-rs6000.c (asm_names): Use -mpwr10 for power10
on AIX, and -mpower10 elsewhere.
* config/rs6000/future.md: Delete.
* config/rs6000/linux64.h: Update comments.  Use TARGET_POWER10, not
TARGET_FUTURE.
* config/rs6000/power10.md: New file.
* config/rs6000/ppc-auxv.h: Use PPC_PLATFORM_POWER10, not
PPC_PLATFORM_FUTURE.
* config/rs6000/rs6000-builtin.def: Update comments.  Use BU_P10V_*
names instead of BU_FUTURE_V_* names.  Use RS6000_BTM_P10 instead of
RS6000_BTM_FUTURE.  Use P10_BUILTIN_* instead of FUTURE_BUILTIN_*.
Use BU_P10_* instead of BU_FUTURE_*.
* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
_ARCH_PWR10 instead of _ARCH_PWR_FUTURE.
(altivec_resolve_overloaded_builtin): Use P10_BUILTIN_VEC_XXEVAL, not
FUTURE_BUILTIN_VEC_XXEVAL.
* config/rs6000/rs6000-call.c: Use P10_BUILTIN_*, not FUTURE_BUILTIN_*.
Update compiler messages.
* config/rs6000/rs6000-cpus.def: Update comments.  Use ISA_3_1_*, not
ISA_FUTURE_*.  Use OPTION_MASK_POWER10, not OPTION_MASK_FUTURE.
* config/rs6000/rs6000-opts.h: Use PROCESSOR_POWER10, not
PROCESSOR_FUTURE.
* config/rs6000/rs6000-string.c: Ditto.
* config/rs6000/rs6000-tables.opt (rs6000_cpu_opt_value): Use "power10"
instead of "future", reorder it to right after "power9".
* config/rs6000/rs6000.c: Update comments.  Use OPTION_MASK_POWER10,
not OPTION_MASK_FUTURE.  Use TARGET_POWER10, not TARGET_FUTURE.  Use
RS6000_BTM_P10, not RS6000_BTM_FUTURE.  Update compiler messages.
Use PROCESSOR_POWER10, not PROCESSOR_FUTURE.  Use ISA_3_1_MASKS_SERVER,
not ISA_FUTURE_MASKS_SERVER.
(rs6000_opt_masks): Use "power10" instead of "future".
(rs6000_builtin_mask_names): Ditto.
(rs6000_disable_incompatible_switches): Ditto.
* config/rs6000/rs6000.h: Use -mpower10, not -mfuture.  Use
-mcpu=power10, not -mcpu=future.  Use MASK_POWER10, not MASK_FUTURE.
Use OPTION_MASK_POWER10, not OPTION_MASK_FUTURE.  Use RS6000_BTM_P10,
not RS6000_BTM_FUTURE.
* config/rs6000/rs6000.md: Use "power10", not "future".  Use
TARGET_POWER10, not TARGET_FUTURE.  Include "power10.md", not
"future.md".
* config/rs6000/rs6000.opt (mfuture): Delete.
(mpower10): New.
* config/rs6000/t-rs6000: Use "power10.md", not "future.md".
* config/rs6000/vsx.md: Use TARGET_POWER10, not TARGET_FUTURE.

Update gcc sv.po.

* sv.po: Update.

recog: Restore builds with Clang

Using parameter packs with function typedefs tripped a Clang bug
in which the packs were not being expanded correctly:

  https://bugs.llvm.org/show_bug.cgi?id=46377

Work around that by going back to the decltype approach, but adding
a cast to void to suppress a warning about unused values.

2020-06-22  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* coretypes.h (first_type): Delete.
* recog.h (insn_gen_fn::operator()): Go back to using a decltype.