This uses CASE_CONVERT more which eases eventual removal of NOP_EXPR.

2022-04-29  Richard Biener  <rguenther@suse.de>

gcc/cp/
	* constexpr.cc (fold_simple_1): Use CASE_CONVERT.
	* cp-gimplify.cc (cp_fold): Likewise.
	* pt.cc (tsubst_copy): Likewise.

gcc/
	* dojump.cc (do_jump): Use CASE_CONVERT.
	* tree-ssa-dom.cc (edge_info::derive_equivalences): Likewise.

On Sun, May 01, 2022 at 07:06:53PM +0100, Jonathan Wakely wrote:
> > >> the reason is that "gcc/analyzer/region-model.cc” uses initializer_lists, and it seems that <initializer_list>
> > >> is not transitively included by any used headers for _LIBCPP_VERSION < 4000.  I fixed that locally by
> > >> adding initializer_list into system.h (and adding INCLUDE_INITIALIZER_LIST to the top of gcc/analyzer/region-model.cc)
> > >> - with that change those versions do bootstrap and test OK***
> > >
> > > From what I can see, with libstdc++ it works because <utility> which is
> > > included by system.h includes <initializer_list>.
> > > If I rename initializer_list in analyzer/region-model.ii to initializer_listx, I
> > > also get:
> > > ../../gcc/analyzer/region-model.cc: In function ‘void ana::selftest::test_binop_svalue_folding()’:
> > > ../../gcc/analyzer/region-model.cc:4966:48: error: deducing from brace-enclosed initializer list requires ‘#include <initializer_list>’
> > > 4508 |
> > >  +++ |+#include <initializer_list>
> > > 4509 | static void
> > > ......
> > > 4966 |     for (auto op : {BIT_IOR_EXPR, TRUTH_OR_EXPR})
> > >      |                                                ^
> > > ../../gcc/analyzer/region-model.cc:4978:49: error: deducing from brace-enclosed initializer list requires ‘#include <initializer_list>’
> > > 4978 |     for (auto op : {BIT_AND_EXPR, TRUTH_AND_EXPR})
> > >      |                                                 ^
> > >
> > > I think we have 2 options, one is do what you wrote above,
> > > INCLUDE_INITIALIZER_LIST defined before system.h to get #include <initializer_list>.
> > > The other option is just to include that unconditionally, it is a very small
> > > header.  For libstdc++ it will make no difference as it is included anyway
> > > and the header is really small there, libc++ includes <cstddef> which isn't
> > > normally included and system.h includes <stddef.h> instead.
> >
> > I’d say unconditionally would be OK. I suppose the chance that any host
> > C++ is good enough to build GCC as-is but fails to provide
> > <initializer_list> is zero?
> >
>
> Yes, definitely.
>
> > I’d be OK to do this change without a new RC even.

2022-05-02  Jakub Jelinek  <jakub@redhat.com>

	* system.h: Include initializer_list.

Mitigates the following clang warning:
libgcc/libgcov-driver.c:416:1: warning: unused function 'dump_string' [-Wunused-function]

libgcc/ChangeLog:

	* libgcov-driver.c: Add ATTRIBUTE_UNUSED.

2022-05-01  Segher Boessenkool  <segher@kernel.crashing.org>

	* config/rs6000/constraints.md (Y constraint): Fix comment.

We are ICEing in set_range_info_raw because value_range_kind cannot be
VR_VARYING, since SSA_NAME_RANGE_TYPE can only hold VR_RANGE /
VR_ANTI_RANGE.  Most of the time setting a VR_VARYING as a global
range makes no sense.  However, we can have a range spanning the
entire domain (VR_RANGE of [MIN,MAX] which is essentially a
VR_VARYING), if the nonzero bits are set.

This was working before because set_range_info_raw allows setting
VR_RANGE of [MIN, MAX].  However, when going through an irange, we
normalize this to a VR_VARYING, thus causing the ICE.  It's
interesting that other calls to set_range_info with an irange haven't
triggered this.

One solution would be to just ignore VR_VARYING and bail, since
set_range_info* is really an update of the current range semantic
wise.  After all, we keep the nonzero bits which provide additional
info.  But this would be a change in behavior, so not suitable until
after GCC 12 is released.  So in order to keep with current behavior
we can just denormalize the varying to VR_RANGE.

Tested on x86-64 Linux.

	    PR tree-optimization/105432

gcc/ChangeLog:

	* tree-ssanames.cc (set_range_info): Denormalize VR_VARYING to
	VR_RANGE before passing a piecewise range to set_range_info_raw.

The function comment for adjust_field_tree_exp says this attribute is
for handling expression trees whose operands may contain pointers to RTL
instead of to trees.  But ever since r0-59671-gac45df5dba5804, which
fixed/removed the last two tree codes for which this was possible
(WITH_CLEANUP_EXPR and GOTO_SUBROUTINE_EXPR), this special attribute is
mostly a no-op.

This patch removes it and instead just annotates struct tree_exp
with the "length" attribute directly.  Not sure it makes a difference,
but I use %h instead of %0 in the attribute string to be consistent with
the other uses of the "length" attribute within tree-core.h.

This changes the code generated for TS_EXP handling in gt-cp-tree.h from:

  case TS_EXP:
    gt_ggc_m_9tree_node ((*x).generic.exp.typed.type);
    switch ((int) (TREE_CODE ((tree) &(*x))))
      {
      default:
	{
	  size_t i3;
	  size_t l3 = (size_t)(TREE_OPERAND_LENGTH ((tree) &(*x)));
	  for (i3 = 0; i3 != l3; i3++) {
	    gt_ggc_m_9tree_node ((*x).generic.exp.operands[i3]);
	  }
	}
	break;
      }
    break;

to:

  case TS_EXP:
    {
      size_t l3 = (size_t)(TREE_OPERAND_LENGTH ((tree)&((*x).generic.exp)));
      gt_ggc_m_9tree_node ((*x).generic.exp.typed.type);
      {
	size_t i3;
	for (i3 = 0; i3 != l3; i3++) {
	  gt_ggc_m_9tree_node ((*x).generic.exp.operands[i3]);
	}
      }
    }

which seems equivalent and simpler.

gcc/ChangeLog:

	* gengtype.cc (adjust_field_tree_exp): Remove.
	(adjust_field_type): Don't handle the "tree_exp" special attribute.
	* tree-core.h (struct tree_exp): Remove "special" and "desc"
	attributes.  Add "length" attribute.

The problem here was that handle_mode_attribute clobbered the changes of any
previous attribute, only copying type qualifiers to the new type.  And
common_handle_aligned_attribute had previously set up the typedef, so when
we later called set_underlying_type it saw DECL_ORIGINAL_TYPE set and just
returned, even though handle_mode_attribute had messed up the TREE_TYPE.
So, let's fix handle_mode_attribute to copy attributes, alignment, and
typedefness to the new type.

	PR c/100545

gcc/c-family/ChangeLog:

	* c-attribs.cc (handle_mode_attribute): Copy attributes, aligned,
	and typedef.
	* c-common.cc (set_underlying_type): Add assert.

gcc/testsuite/ChangeLog:

	* c-c++-common/attr-mode-1.c: New test.
	* c-c++-common/attr-mode-2.c: New test.

The the different calling of check_explicit_specialization for class and
namespace scope friends bothered me, so this patch combines them.

	PR c++/91618
	PR c++/96604

gcc/cp/ChangeLog:

	* friend.cc (do_friend): Call check_explicit_specialization here.
	* decl.cc (grokdeclarator): Not here.
	* decl2.cc (check_classfn): Or here.

In this testcase, we were trying to substitute into
variant<Foo<T>>::__accepted_type, but failed to look it up because
variant<Foo<T>> doesn't exist.  In other cases we already rewrite such
things into a dependent reference; we need to do that for alias templates as
well.

This caused some testsuite regressions on alias uses outside of deduction
guides, so I've made all of this rewriting conditional on a new tf_dguide
tsubst flag.

	PR c++/104470

gcc/cp/ChangeLog:

	* cp-tree.h (enum tsubst_flags): Add tf_dguide.
	* pt.cc (tsubst_aggr_type): Check it.
	(tsubst_baselink, tsubst_copy): Check it.
	(maybe_dependent_member_ref): Check it.
	(instantiate_alias_template): Handle it.
	(build_deduction_guide): Set it.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp2a/explicit11.C: Second example also ill-formed.
	* g++.dg/cpp2a/class-deduction-alias12.C: New test.

The stage 4 patch limited direct propagation of dependent type to capture
field/proxy to the "current instantiation", but many more types should be
suitable as well.

	PR c++/82980

gcc/cp/ChangeLog:

	* lambda.cc (type_deducible_expression_p): Allow more types.

In r185768 I added the !FUNCTION_DECL check, but we might as well just check
for variable; nothing else should take this path, and asserting as much
doesn't regress anything.

gcc/cp/ChangeLog:

	* decl.cc (cp_finish_decl): Only consider auto for vars.

[dcl.dcl]/5 says that

  enum { };

is ill-formed, and since r197742 we issue a pedwarn.  However, the
pedwarn also fires for

   enum { } x;

which is well-formed.  So only warn when {} is followed by a ;.  This
should be correct since you can't have "enum {}, <whatever>" -- that
produces "expected unqualified-id before ',' token".

	PR c++/67048

gcc/cp/ChangeLog:

	* parser.cc (cp_parser_enum_specifier): Warn about empty unnamed enum
	only when it's followed by a semicolon.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/enum42.C: New test.

Normally we check for incomplete type in start_decl, but that obviously
doesn't work for auto variables. Thanks to Pokechu22 for the analysis and
testcases:

"When cp_finish_decl calls cp_apply_type_quals_to_decl on a const auto or
constexpr auto variable, the type might not be complete the first time
(this happened when auto deduces to an initializer_list).
cp_apply_type_quals_to_decl removes the const qualifier if the type is
not complete, which is appropriate for grokdeclarator, on the assumption
that the type will be complete when called by cp_finish_decl."

	PR c++/80351

gcc/cp/ChangeLog:

	* decl.cc (cp_finish_decl): Check completeness of deduced type.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/constexpr-77482.C: Adjust message.
	* g++.dg/cpp1y/auto-fn27.C: Likewise.
	* g++.dg/cpp1y/lambda-generic-variadic22.C: Likewise.
	* g++.dg/cpp1z/decomp54.C: Likewise.
	* g++.dg/cpp0x/initlist-const1.C: New test.
	* g++.dg/warn/Wunused-var-37.C: New test.
	* g++.dg/warn/Wunused-var-38.C: New test.
	* g++.dg/warn/Wunused-var-39.C: New test.

gcc/fortran/ChangeLog:

	* gfortran.texi: Fix exchanged period and letter.

In the PR, the verifier complains that we did not manage to remove the
body of a node and it is right.  The node is kept for materialization
of two clones but after one is materialized, the other one is removed
as unneeded (as a part of delete_unreachable_blocks_update_callgraph).
The problem is that the node removal does not check for this situation
and can leave the clone_of node there with a body attached to it even
though there is no use for it any more.  This patch does checks for it
and handles the situation in a simlar way that
cgraph_node::materialize_clone does it, except that it also has to be
careful that the removed node itself does not have any clones, which
would still need the clone_of's body.  Failing to do that results in a
bootstrap failure.

gcc/ChangeLog:

2022-04-27  Martin Jambor  <mjambor@suse.cz>

	PR ipa/100413
	* cgraph.cc (cgraph_node::remove): Release body of the node this
	is clone_of if appropriate.

gcc/testsuite/ChangeLog:

2022-04-27  Martin Jambor  <mjambor@suse.cz>

	PR ipa/100413
	* g++.dg/ipa/pr100413.C: New test.

Add option that originally caused testcase to fail for aarch64.

gcc/testsuite/ChangeLog:

	PR tree-optimization/105219
	* gcc.dg/vect/pr105219.c: Add aarch64 target option.

This was fixed by r269078.

	PR c++/83596

gcc/testsuite/ChangeLog:

	* g++.dg/cpp1z/nontype5.C: New test.

The --with-long-double-abi=ibm build is missing some exports that are
present in the --with-long-double-abi=ieee build. Those symbols never
should have been exported at all, but now that they have been, they
should be exported consistently by both ibm and ieee.

This simply defines them as aliases for equivalent symbols that are
already present. The abi-tag on num_get::_M_extract_int isn't really
needed, because it only uses a std::string as a local variable, not in
the return type or function parameters, so it's safe to define the
_M_extract_int[abi:cxx11] symbols as aliases for the corresponding
function without the abi-tag.

This causes some new symbols to be added to the GLIBCXX_3.4.29 version
for the ibm long double build mode, but there is no advantage to adding
them to 3.4.30 for that build. That would just create more
inconsistencies.

libstdc++-v3/ChangeLog:

	PR libstdc++/105417
	* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
	Regenerate.
	* src/c++11/compatibility-ldbl-alt128.cc [_GLIBCXX_USE_DUAL_ABI]:
	Define __gnu_ieee128::num_get<C>::_M_extract_int[abi:cxx11]<I>
	symbols as aliases for corresponding symbols without abi-tag.

This was finally fixed for GCC 11 by r11-434.

	PR c++/78244

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/Wnarrowing20.C: New test.

This was fixed by r12-6329-g4f6bc28fc7dd86.

	PR c++/71424

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/initlist-array15.C: New test.

The decl pretty-printing code wasn't looking at the flags parameter, so we
were printing 'using' in the middle of an expression.

	PR c++/102987

gcc/cp/ChangeLog:

	* error.cc (dump_decl) [USING_DECL]: Respect flags.

gcc/testsuite/ChangeLog:

	* g++.dg/diagnostic/using1.C: Check pretty-printing.

An alias can't be declared with a qualified-id in actual code, but in
diagnostics we want to know which scope it belongs to, and I think a
nested-name-specifier is the best way to provide that.

gcc/cp/ChangeLog:

	* error.cc (dump_decl): Check TFF_UNQUALIFIED_NAME.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/alias-decl-1.C: Expect qualified name.

As mentioned in the PR, for C++98 we have diagnostics that expect
>> terminating template arguments to be a mistake for > > (C++11
said it has to be treated that way), while if user trying to spare the
spacebar doesn't separate > from following = or >> from following =,
the diagnostics is confusing, while clang suggests adding space in between.

The following patch does that for >= and >>= too.

For some strange reason the error recovery emits further errors,
not really sure what's going on because I overwrite the token->type
like the code does for the C++11 >> case or for the C++98 >> cases,
but at least the first error is nicer (well, for the C++98 nested
template case and >>= I need to overwrite it to > and so the = is lost,
so perhaps some follow-up errors are needed for that case).

2022-04-29  Jakub Jelinek  <jakub@redhat.com>

	PR c++/104319
	* parser.cc (cp_parser_template_argument): Treat >= like C++98 >>
	after a type id by setting maybe_type_id and aborting tentative
	parse.
	(cp_parser_enclosed_template_argument_list): Handle
	CPP_GREATER_EQ like misspelled CPP_GREATER CPP_RQ and
	CPP_RSHIFT_EQ like misspelled CPP_GREATER CPP_GREATER_EQ
	or CPP_RSHIFT CPP_EQ or CPP_GREATER CPP_GREATER CPP_EQ.
	(cp_parser_next_token_ends_template_argument_p): Return true
	also for CPP_GREATER_EQ and CPP_RSHIFT_EQ.

	* g++.dg/parse/template28.C: Adjust expected diagnostics.
	* g++.dg/parse/template30.C: New test.

The following patch updates the Solaris baselines for GCC 12.1.

Tested on i386-pc-solaris2.11 and sparc-sun-solaris2.11 (Solaris 11.3
and 11.4 in each case).

The only (expected) difference between the 11.3 and 11.4 versions is

--- baseline_symbols.txt.s113s	2022-04-28 10:37:11.464068450 +0000
+++ baseline_symbols.txt.s114s	2022-04-27 16:54:31.995636805 +0000
@@ -4070,3 +4070,3 @@
-FUNC:_ZSt10from_charsPKcS0_RdSt12chars_format@@GLIBCXX_3.4.30
-FUNC:_ZSt10from_charsPKcS0_ReSt12chars_format@@GLIBCXX_3.4.30
-FUNC:_ZSt10from_charsPKcS0_RfSt12chars_format@@GLIBCXX_3.4.30
+FUNC:_ZSt10from_charsPKcS0_RdSt12chars_format@@GLIBCXX_3.4.29
+FUNC:_ZSt10from_charsPKcS0_ReSt12chars_format@@GLIBCXX_3.4.29
+FUNC:_ZSt10from_charsPKcS0_RfSt12chars_format@@GLIBCXX_3.4.29

which is handled by the fix for PR libstdc++/103407.  I'm using the 11.4
version here.


2022-04-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	libstdc++-v3:
	* config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
	* config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
	Likewise.
	* config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
	* config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
	Likewise.

Introduce peephole2 pattern to convert from:

   mov %esi, %edx
   negl %eax
   adcl $0, %edx
   negl %edx
 to:
   xorl %edx, %edx
   negl %eax
   sbbl %esi, %edx

This conversion is profitable only when initial move is found.  Otherwise,
additional move to a temporary together with clearing xor is needed.

2022-04-29  Uroš Bizjak  <ubizjak@gmail.com>

gcc/ChangeLog:

	PR target/51954
	* config/i386/i386.md (adcl/neg -> sbb peephole): New peephole2.
gcc/testsuite/ChangeLog:

	PR target/51954
	* gcc.target/i386/pr51954.c: New test.

The following fixes wrongly used is_gimple_condexpr and makes
canonicalize_cond_expr_cond honor either, delaying final checking
to callers where all but two in ifcombine are doing the correct
thing already.

This fixes bugs but is now mainly in preparation for making
COND_EXPRs in GIMPLE assignments no longer have a GENERIC expression
as condition operand like we already transitioned VEC_COND_EXPR earlier.

2022-04-11  Richard Biener  <rguenther@suse.de>

	* gimple-expr.cc (is_gimple_condexpr): Adjust comment.
	(canonicalize_cond_expr_cond): Move here from gimple.cc,
	allow both COND_EXPR and GIMPLE_COND forms.
	* gimple-expr.h (canonicalize_cond_expr_cond): Declare.
	* gimple.cc (canonicalize_cond_expr_cond): Remove here.
	* gimple.h (canonicalize_cond_expr_cond): Likewise.
	* gimple-loop-versioning.cc (loop_versioning::version_loop):
	Use is_gimple_condexpr_for_cond.
	* tree-parloops.cc (gen_parallel_loop): Likewise.
	* tree-ssa-ifcombine.cc (ifcombine_ifandif): Check for
	a proper cond expr after canonicalize_cond_expr_cond.
	Use is_gimple_condexpr_for_cond where appropriate.
	* tree-ssa-loop-manip.cc (determine_exit_conditions): Likewise.
	* tree-vect-loop-manip.cc (slpeel_add_loop_guard): Likewise.

The following adds gsi_after_labels for gimple_seq so I do not have
to open-code it.  I took the liberty to remove the two #defines
wrapping gsi_start_1 and gsi_last_1 as we now have C++ references.

2022-02-01  Richard Biener  <rguenther@suse.de>

	* gimple-iterator.h (gsi_after_labels): Add overload for
	gimple_seq.
	(gsi_start_1): Rename to gsi_start and take a reference.
	(gsi_last_1): Likewise.
	* gimple-iterator.cc (gsi_for_stmt): Use gsi_start.
	* omp-low.cc (lower_rec_input_clauses): Likewise.
	(lower_omp_scan): Likewise.

This avoids undefined signed overflow when calling powi_as_mults_1.

2022-04-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/105431
	* tree-ssa-math-opts.cc (powi_as_mults_1): Make n unsigned.
	(powi_as_mults): Use absu_hwi.
	(gimple_expand_builtin_powi): Remove now pointless n != -n
	check.

In preparation for the agnostication of ranger, this patch moves
common code that can be shared between non-integer ranges (initially
pointers) into the relevant header files.

This is a relatively non-invasive change, as any changes that would
need to be ported to GCC 12, would occur in the range-op entries
themselves, not in the supporting glue which I'm moving.

Tested and benchmarked on x86-64 Linux.

gcc/ChangeLog:

	* range-op.cc (empty_range_varying): Move to range-op.h.
	(range_true): Move to range.h.
	(range_false): Same.
	(range_true_and_false): Same.
	(enum bool_range_state): Move to range-op.h.
	(relop_early_resolve): Same.
	(operator_equal::op1_op2_relation): Abstract code to...
	(equal_op1_op2_relation): ...here.
	(operator_not_equal::op1_op2_relation): Abstract code to...
	(not_equal_op1_op2_relation): ...here.
	(operator_lt::op1_op2_relation): Abstract code to...
	(lt_op1_op2_relation): ...here.
	(operator_le::op1_op2_relation): Abstract code to...
	(le_op1_op2_relation): ...here.
	(operator_gt::op1_op2_relation): Abstract code to...
	(gt_op1_op2_relation): ...here.
	(operator_ge::op1_op2_relation): Abstract code to...
	(ge_op1_op2_relation): ...here.
	(class range_op_table): Move to range-op.h.
	* range-op.h (equal_op1_op2_relation): Moved from range-op.cc.
	(not_equal_op1_op2_relation): Same.
	(lt_op1_op2_relation): Same.
	(le_op1_op2_relation): Same.
	(gt_op1_op2_relation): Same.
	(ge_op1_op2_relation): Same.
	(enum bool_range_state): Same.
	(get_bool_state): Same.
	(empty_range_varying): Same.
	(relop_early_resolve): Same.
	(class range_op_table): Same.
	* range.h (range_true): Same.
	(range_false): Same.
	(range_true_and_false): Same.

This patch cleans up some irange methods in preparation for other
cleanups later in the cycle.

First, we prefer the reference overloads for union and intersect as
the pointer versions have been deprecated for a couple releases.

Also, I've renamed the legacy union/intersect whose only function was
to provide additional verbosity for VRP into
legacy_verbose_{union,intersect}.  This is a temporary rename to serve
as a visual reminder of which of the methods are bound for the chopping
block when the legacy code gets removed later this cycle.

Tested on x86-64 Linux.

gcc/ChangeLog:

	* gimple-fold.cc (size_must_be_zero_p): Use reference
	instead of pointer
	* gimple-ssa-evrp-analyze.cc
	(evrp_range_analyzer::record_ranges_from_incoming_edge): Rename
	intersect to legacy_verbose_intersect.
	* ipa-cp.cc (ipcp_vr_lattice::meet_with_1): Use reference instead
	of pointer.
	* tree-ssa-dom.cc (dom_jt_simplifier::simplify): Use value_range
	instead of value_range_equiv.
	* tree-vrp.cc (extract_range_from_plus_minus_expr): Use reference
	instead of pointer.
	(find_case_label_range): Same.
	* value-range-equiv.cc (value_range_equiv::intersect): Rename to...
	(value_range_equiv::legacy_verbose_intersect): ...this.
	(value_range_equiv::union_): Rename to...
	(value_range_equiv::legacy_verbose_union_): ...this.
	* value-range-equiv.h (class value_range_equiv): Rename union and
	intersect to legacy_verbose_{intersect,union}.
	* value-range.cc (irange::union_): Rename to...
	(irange::legacy_verbose_union_): ...this.
	(irange::intersect): Rename to...
	(irange::legacy_verbose_intersect): ...this.
	* value-range.h (irange::union_): Rename union_ to
	legacy_verbose_union.
	(irange::intersect): Rename intersect to legacy_verbose_intersect.
	* vr-values.cc (vr_values::update_value_range): Same.
	(vr_values::extract_range_for_var_from_comparison_expr): Same.
	(vr_values::extract_range_from_cond_expr): Rename union_ to
	legacy_verbose_union.
	(vr_values::extract_range_from_phi_node): Same.

This patch consolidates the multiple ways we have of storing global
ranges into one accepting a range.

In an upcoming patch series later this cycle we will be providing a
way to store iranges globally, as opposed to the mechanism we have now
which squishes wider ranges into value_range's.  This is preparation
for such work.

Tested and benchmarked on x86-64 Linux.

gcc/ChangeLog:

	* gimple-ssa-evrp-analyze.cc
	(evrp_range_analyzer::set_ssa_range_info): Use *range_info methods
	that take a range.
	* gimple-ssa-sprintf.cc (try_substitute_return_value): Same.
	* ipa-prop.cc (ipcp_update_vr): Same.
	* tree-inline.cc (remap_ssa_name): Same.
	* tree-ssa-copy.cc (fini_copy_prop): Same.
	* tree-ssa-math-opts.cc (optimize_spaceship): Same.
	* tree-ssa-phiopt.cc (replace_phi_edge_with_variable): Same.
	* tree-ssa-pre.cc (insert_into_preds_of_block): Same.
	* tree-ssa-sccvn.cc (eliminate_dom_walker::eliminate_stmt): Same.
	* tree-ssa-strlen.cc (set_strlen_range): Same.
	(strlen_pass::handle_builtin_string_cmp): Same.
	* tree-ssanames.cc (set_range_info): Make static.
	(duplicate_ssa_name_range_info): Make static and add a new variant
	calling the static.
	* tree-ssanames.h (set_range_info): Remove version taking wide ints.
	(duplicate_ssa_name_range_info): Remove version taking a
	range_info_def and replace with a version taking SSA names.
	* tree-vect-loop-manip.cc (vect_gen_vector_loop_niters): Use *range_info methods
	that take a range.
	(vect_do_peeling): Same.
	* tree-vrp.cc (vrp_asserts::remove_range_assertions): Same.
	* vr-values.cc (simplify_truth_ops_using_ranges): Same.

Small clean up to use set_undefined instead of duplicating the
functionality therein.

Tested on x86-64 Linux.

gcc/ChangeLog:

	* value-range.h (irange::irange): Use set_undefined.

This method should have been private, and somehow seeped into the API.

Tested and benchmarked on x86-64 Linux.

gcc/ChangeLog:

	* gimple-range-cache.h (non_null_ref::adjust_range): Do not use
	irange::intersect (wide_int, wide_int).
	* gimple-range-fold.cc (adjust_pointer_diff_expr): Same.
	(adjust_imagpart_expr): Same.
	* value-range.h (irange::intersect (wide_int, wide_int)): Make
	private.

The PR points out dead code after previous refactoring.

2022-02-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/104322
	* tree-vect-loop.cc (vectorizable_reduction): Remove dead code.

The changes to fix PR 105287 included a tightening of the constraints on which
variables are promoted to frame copies.  This has exposed that we are failing
to name some variables that should be promoted.

We avoid the use of DECL_UID to build anonymous symbols since that might not
be stable for -fcompare-debug.

The long-term fix is to address the cases where the naming has been missed,
but for the short-term (and for the GCC-12 branch) backing out the additional
constraint is proposed.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

	PR c++/105426

gcc/cp/ChangeLog:

	* coroutines.cc (register_local_var_uses): Allow promotion of unnamed
	temporaries to coroutine frame copies.

We are eventually ICEing in decimal_to_decnumber on non-decimal
REAL_VALUE_TYPE that creep in from uses of build_real (..., dconst*)
for DFP types.  The following extends the decimal_to_decnumber
special-casing of dconst* to build_real, avoiding the bogus REAL_CSTs
from creeping into the IL and modified to ones not handled by
the decimal_to_decnumber special casing.  It also makes sure to
ICE for not handled dconst* values at the point we build the REAL_CST.

2022-04-27  Richard Biener  <rguenther@suse.de>

	PR middle-end/105376
	* tree.cc (build_real): Special case dconst* arguments
	for decimal floating point types.

	* gcc.dg/pr105376.c: New testcase.

gcc/ada/ChangeLog:

	* gnatvsn.ads: Bump Library_Version to 13.