This patch stops gimple and rtl DSE from running by default at -Og.
The idea is both to improve compile time and to stop us from deleting
stores that we can't track in debug info.

We could rein this back in future for stores to local variables
with is_gimple_reg_type, but at the moment we don't have any
infrastructure for switching between binds to specific values
and binds to evolving memory locations.  Even then, location
tracking only works for direct references to the variables, and doesn't
for example help with printing dereferenced pointers (see the next patch
in the series for an example).

I'm also not sure that DSE is important enough for -Og to justify the
compile time cost --  especially in the case of RTL DSE, which is pretty
expensive.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* common.opt (Og): Change the initial value of flag_dse to 0.
	* opts.c (default_options_table): Move OPT_ftree_dse from
	OPT_LEVELS_1_PLUS to OPT_LEVELS_1_PLUS_NOT_DEBUG.  Also add
	OPT_fdse to OPT_LEVELS_1_PLUS_NOT_DEBUG.  Put the OPT_ftree_pta
	entry before the OPT_ftree_sra entry.
	* doc/invoke.texi (Og): Add -fdse and -ftree-dse to the list
	of flags disabled by Og.

gcc/testsuite/
	* c-c++-common/guality/Og-global-dse-1.c: New test.

From-SVN: r273871

This patch prevents -Og from deleting stores to write-only variables,
so that the values are still available when debugging.  This seems
more convenient than forcing users to use __attribute__((used))
(probably conditionally, if it's not something they want in release
builds).

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-cfg.c (execute_fixup_cfg): Don't delete stores to write-only
	variables for -Og.

gcc/testsuite/
	* c-c++-common/guality/Og-static-wo-1.c: New test.
	* g++.dg/guality/guality.exp: Separate the c-c++-common tests into
	"Og" and "general" tests.  Run the latter at -O0 and -Og only.
	* gcc.dg/guality/guality.exp: Likewise.

From-SVN: r273870

There isn't a 1:1 mapping from SVE intrinsics to SVE instructions,
but the intrinsics are still close enough to the instructions for
there to be a specific preferred sequence (or sometimes choice of
preferred sequences) for a given combination of operands.  Sometimes
these sequences will be one instruction, sometimes they'll be several.

I therefore wanted a convenient way of matching the exact assembly
implementation of a given function.  It's possible to do that using
single scan-assembler lines, but:

(a) they become hard to read for multiline matches
(b) the PASS/FAIL lines tend to be overly long
(c) it's useful to have a single place that skips over uninteresting
    lines, such as entry block labels and .cfi_* directives, without
    being overly broad

This patch therefore adds a new check-function-bodies dg-final test
that looks for specially-formatted comments.  As a demo, the patch
converts the SVE vec_init tests to use the new harness instead of
scan-assembler.

The regexps in parse_function_bodies are fairly general, but might
still need to be extended in future for targets like Darwin or AIX.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* doc/sourcebuild.texi (check-function-bodies): Document.

gcc/testsuite/
	* lib/scanasm.exp (parse_function_bodies, check_function_body)
	(check-function-bodies): New procedures.
	* gcc.target/aarch64/sve/init_1.c: Use check-function-bodies
	instead of scan-assembler.
	* gcc.target/aarch64/sve/init_2.c: Likewise.
	* gcc.target/aarch64/sve/init_3.c: Likewise.
	* gcc.target/aarch64/sve/init_4.c: Likewise.
	* gcc.target/aarch64/sve/init_5.c: Likewise.
	* gcc.target/aarch64/sve/init_6.c: Likewise.
	* gcc.target/aarch64/sve/init_7.c: Likewise.
	* gcc.target/aarch64/sve/init_8.c: Likewise.
	* gcc.target/aarch64/sve/init_9.c: Likewise.
	* gcc.target/aarch64/sve/init_10.c: Likewise.
	* gcc.target/aarch64/sve/init_11.c: Likewise.
	* gcc.target/aarch64/sve/init_12.c: Likewise.

From-SVN: r273869

This patch uses the constant vector encoding scheme to handle
more cases of a VEC_DUPLICATE of another vector.  Duplicating
any fixed-length vector is fine, and duplicating a variable-length
vector is OK as long as that vector is also a duplicate of a
fixed-length sequence.

Other cases fell through to:

  if (VECTOR_MODE_P (mode) && GET_CODE (op) == CONST_VECTOR)

which was only expecting to deal with elementwise operations.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* simplify-rtx.c (simplify_const_unary_operation): Fold a
	VEC_DUPLICATE of a fixed-length vector even if the result
	is variable-length.  Likewise fold a duplicate of a
	variable-length vector if the variable-length vector is
	itself a duplicate of a fixed-length sequence.
	(test_vector_ops_duplicate): Test more cases.

From-SVN: r273868

This patch extends the tree-level folding of variable-length vectors
so that it can also be used on rtxes.  The first step is to move
the tree_vector_builder new_unary/binary_operator routines to the
parent vector_builder class (which in turn means adding a new
template parameter).  The second step is to make simplify-rtx.c
use a direct rtx analogue of the VECTOR_CST handling in fold-const.c.

2019-07-29  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* vector-builder.h (vector_builder): Add a shape template parameter.
	(vector_builder::new_unary_operation): New function, generalizing
	the old tree_vector_builder function.
	(vector_builder::new_binary_operation): Likewise.
	(vector_builder::binary_encoded_nelts): Likewise.
	* int-vector-builder.h (int_vector_builder): Update template
	parameters to vector_builder.
	(int_vector_builder::shape_nelts): New function.
	* rtx-vector-builder.h (rtx_vector_builder): Update template
	parameters to vector_builder.
	(rtx_vector_builder::shape_nelts): New function.
	(rtx_vector_builder::nelts_of): Likewise.
	(rtx_vector_builder::npatterns_of): Likewise.
	(rtx_vector_builder::nelts_per_pattern_of): Likewise.
	* tree-vector-builder.h (tree_vector_builder): Update template
	parameters to vector_builder.
	(tree_vector_builder::shape_nelts): New function.
	(tree_vector_builder::nelts_of): Likewise.
	(tree_vector_builder::npatterns_of): Likewise.
	(tree_vector_builder::nelts_per_pattern_of): Likewise.
	* tree-vector-builder.c (tree_vector_builder::new_unary_operation)
	(tree_vector_builder::new_binary_operation): Delete.
	(tree_vector_builder::binary_encoded_nelts): Likewise.
	* simplify-rtx.c: Include rtx-vector-builder.h.
	(distributes_over_addition_p): New function.
	(simplify_const_unary_operation)
	(simplify_const_binary_operation): Generalize handling of vector
	constants to include variable-length vectors.
	(test_vector_ops_series): Add more tests.

From-SVN: r273867

re PR c++/91222 (507.cactuBSSN_r build fails in warn_types_mismatch at ipa-devirt.c:1006 since r273571)


	PR lto/91222
	* ipa-devirt.c (warn_types_mismatch): Compare indentifiers
	than INDENTIFIER_POINTER.

From-SVN: r273866

From-SVN: r273864

2019-07-28  Martin Liska  <mliska@suse.cz>

	PR ipa/89330
	* cgraph.c (symbol_table::create_edge): Always allocate
	a cgraph_edge.
	(symbol_table::free_edge): Store summary_id to
	edge_released_summary_ids if != -1;
	* cgraph.h (NEXT_FREE_NODE): Remove.
	(SET_NEXT_FREE_NODE): Likewise.
	(NEXT_FREE_EDGE): Likewise.
	(symbol_table::release_symbol): Store summary_id to
	cgraph_released_summary_ids if != -1;
	(symbol_table::allocate_cgraph_symbol): Always allocate
	a cgraph_node.

From-SVN: r273857

	* g++.dg/lto/pr89330_0.C (dg-lto-options): Add -fPIC.
	Require fpic support.

From-SVN: r273856

Since svn r123193 (git 327202e27a) the comment about scratch regs was
no longer correct, and I think gen_sibcall could have been used even
then.

	* gcc/config/rs6000/rs6000-call.c (rs6000_output_mi_thunk): Use
	gen_sibcall.

From-SVN: r273855

This patch makes the obvious fix for PR91135, and deletes extraneous
copies of GNU_USER_TARGET_D_OS_VERSIONS that appear in rs6000/linux.h
and rs6000/linux64.h.  Since all configurations using either of these
files also include linux.h there is no need to duplicate the macro.

	PR target/91135
	* config/rs6000/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Don't
	define.
	* config/rs6000/linux64.h (TARGET_OS_CPP_BUILTINS): Invoke
	GNU_USER_TARGET_OS_CPP_BUILTINS for aixdesc abi.
	(GNU_USER_TARGET_D_OS_VERSIONS): Don't define.

From-SVN: r273854

When gcc is configured using --with-cpu=<cpu>, the specified cpu
effectively becomes a default -mcpu=<cpu> passed to gcc.  This then
affects the cpu passed to gas via ASM_CPU_SPEC.  If gcc is not
configured using --with-cpu then the cpu passed to gas is that given
by ASM_DEFAULT_SPEC, which currently does not match the default flags
selected in default64.h.  This patch makes ASM_DEFAULT_SPEC agree with
TARGET_DEFAULT flags.

rs6000/default64.h appears in three places in config.gcc, the first
one immediately followed by rs6000/freebsd64.h in $tm_file, and the
other two immediately followed by rs6000/linux64.h.  To be able to
define ASM_DEFAULT_SPEC in rs6000/default64.h we don't want to
redefine in the other two files.  rs6000/freebsd64.h is easy since
that file is always preceded by rs6000/default64.h, but
rs6000/linux64.h can appear without rs6000/default64.h (a
powerpc*-linux config where the default is -m32).  In that case we
will have TARGET_DEFAULT flags of 0 (from rs6000/sysv4.h) and want to
use -mppc without -m64 and -mppc64 with -m64.  This can be done by
using the rs6000/rtems.h ASM_DEFAULT_SPEC in rs6000/sysv4.h, a change
that won't affect sysv4 configurations where -m64 is invalid.

The patch also introduces ASM_DEFAULT_EXTRA for the altivec variant
targets so as to enable -maltivec by default.

	PR target/91050
	* config/rs6000/sysv4.h (ASM_DEFAULT_SPEC): Modify if -m64.
	* config/rs6000/default64.h (ASM_DEFAULT_SPEC): Define.
	* config/rs6000/freebsd64.h (ASM_DEFAULT_SPEC): Don't define.
	* config/rs6000/linux64.h (ASM_DEFAULT_SPEC): Likewise.
	* config/rs6000/rtems.h (ASM_DEFAULT_SPEC): Likewise.
	* config/rs6000/rs6000.h (ASM_DEFAULT_EXTRA): Define and use
	in asm_default spec.
	* config/rs6000/eabialtivec.h (ASM_DEFAULT_EXTRA): Redefine.
	* config/rs6000/linuxaltivec.h (ASM_DEFAULT_EXTRA): Redefine.

From-SVN: r273853

	* doc/xml/manual/documentation_hacking.xml: Fix broken reference
	to the Doxygen manual. Avoid a "here" link on the way.
	Fix another broken link to Doxygen docblocks.

From-SVN: r273852

From-SVN: r273851

From-SVN: r273850

This test is failing with older cpus because the included header needs both
altivec and vsx to be enabled to succeed in compiling.  Without this (if these
are not defaults for the cpu) there are errors like:

In file included from ... x86intrin.h:41,
                 from ... bmi2-bzhi64-1a.c:6:
 ... xmmintrin.h: In function '_mm_loadu_ps':
 ... xmmintrin.h:122:11: 
error: incompatible types when returning type 'int' but '__m128' {aka '__vector(4) float'} was expected
<snip>
 ... xmmintrin.h: In function '_mm_cvtps_pi32':
 ... xmmintrin.h:996:3: 
error: use of 'long long' in AltiVec types is invalid without '-mvsx'
<snip>

Fixed by adding -maltivec -mvsx to the options.

gcc/testsuite/

2019-07-27  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.target/powerpc/bmi2-bzhi64-1a.c: Add options to enable altivec
	and vsx.

From-SVN: r273844

From-SVN: r273843

Darwin's "size" command has a different header line, reflecting the Mach-O
section naming conventions.  This causes tests using the command to fail
because scanasm.exp expects and checks specific layout of the header line.

gcc/testsuite/

2019-07-26  Iain Sandoe  <iain@sandoe.co.uk>

	* lib/scanasm.exp (object-size): Handle Darwin's size command.

From-SVN: r273839

This macro was added as part of moving std::endian from <type_traits> to
<bit>.

	* include/std/bit (__cpp_lib_endian): Define.
	* include/std/version (__cpp_lib_endian): Define.
	* testsuite/26_numerics/endian/2.cc: New.
	* testsuite/26_numerics/endian/3.cc: New.
	* testsuite/26_numerics/endian/4.cc: New.

From-SVN: r273828

Due to config.gcc all the options need to be on one line because of the grep
lines which would select only the first line of the option.

This causes it not to select the right bits on options that are spread over
multiple lines when the --with-arch configure option is used.  The issue happens
silently and you just get a compiler with an incorrect set of default flags.

The current rules are quite rigid:

   1) No space between the AARCH64_OPT_EXTENSION and the opening (.
   2) No space between the opening ( and the extension name.
   3) No space after the extension name before the ,.
   4) Spaces are only allowed after a , and around |.

This patch makes this a lot less fragile by using the C pre-processor to flatten
the list and then provides much more flexible regex using group matching to
process the options instead of string replacement.  This removes all the
restrictions above and makes the code a bit more readable.

gcc/ChangeLog:

	PR target/89517
	* config.gcc: Relax parsing of AARCH64_OPT_EXTENSION.
	* config/aarch64/aarch64-option-extensions.def: Add new comments
	and restore easier to read options.

From-SVN: r273827

This patch moves part of the type conversion code from convert.c to match.pd
because match.pd is able to apply these transformations in the presence of
intermediate temporary variables.

Concretely it makes both these cases behave the same

  float e = (float)a * (float)b;
  *c = (_Float16)e;

and 

  *c = (_Float16)((float)a * (float)b);

gcc/ChangeLog:

	* convert.c (convert_to_real_1): Move part of conversion code...
	* match.pd: ...To here.

gcc/testsuite/ChangeLog:

	* gcc.dg/type-convert-var.c: New test.

From-SVN: r273826

2019-07-26  Martin Jambor  <mjambor@suse.cz>

	PR ipa/89330
	* ipa-inline-transform.c (check_speculations_1): New function.
	(push_all_edges_in_set_to_vec): Likewise.
	(check_speculations): Use check_speculations_1, new parameter
	new_edges.
	(inline_call): Pass new_edges to check_speculations.
	* ipa-inline.c (add_new_edges_to_heap): Assert edge_callee is not
	NULL.
	(speculation_useful_p): Early return true if edge is inlined, remove
	later checks for inline_failed.

	testsuite/
	* g++.dg/lto/pr89330_[01].C: New test.
	* g++.dg/tree-prof/devirt.C: Added -fno-profile-values to dg-options.

From-SVN: r273825

	* testsuite/util/testsuite_iterators.h
	(bidirectional_iterator_wrapper): Fix type comment.
	(random_access_iterator_wrapper): Likewise.

From-SVN: r273824

From-SVN: r273823

This change to an early C++2a feature was just approved (P1612R1).

	* include/std/bit (endian): Move definition here as per P1612R1.
	* include/std/type_traits (endian): Remove definition from here.
	* testsuite/20_util/endian/1.cc: Rename to ...
	* testsuite/26_numerics/endian/1.cc: ... here. Adjust header.

From-SVN: r273816

gcc/testsuite/ChangeLog:
	* gcc.dg/Wstringop-overflow-14.c: Disable for stricly aligned targets.

From-SVN: r273814

PR tree-optimization/91183
PR tree-optimization/86688

gcc/testsuite/ChangeLog:
	* gcc.dg/strlenopt-70.c: Fix bugs.
	* gcc.dg/strlenopt-71.c: Same.
	* gcc.dg/strlenopt-72.c: Same.

From-SVN: r273812

2019-07-25  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/91223
	* lra-constraints.c (process_alt_operands): Fail for unsuccessful
	matching with INOUT operand.

2019-07-25  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/91223
	* gcc.target/i386/pr91223.c: New test.

From-SVN: r273810

The testcase is failing to instrument part of the source because of a bug
in the ordering of static DTORs.  It seems unlikely that this is generically
fixable in the toolchain (and given that it's likely to be a dynamic loader
change would not be expected to be applied retrospectively to OS versions
that are out of support).  To avoid the testsuite noise, xfail the count lines
that don't match (we can adjust the xfails as/when the upstream bug is fixed).

dejagnu xfails do not seem to work when embedded in a line like:
  ~Test (void) { .... /* count(1) { xfail ... } */ }
the closing brace seems to confuse the parser.  The solution is to exapnd the
text onto three lines.

2019-07-25  Iain Sandoe  <iain@sandoe.co.uk>

	PR gcov-profile/91087
	* g++.dg/gcov/pr16855.C: Xfail the count lines for the DTORs and the
	"final" line for the failure summaries.  Adjust source layout so that
	dejagnu xfail expressions work.

From-SVN: r273809

2019-07-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/65819
	* dependency.h (gfc_dep_resovler): Add optional argument identical.
	* dependency.c (gfc_check_dependency): Do not alway return 1 if
	the symbol is the same. Pass on identical to gfc_dep_resolver.
	(gfc_check_element_vs_element): Whitespace fix.
	(gfc_dep_resolver): Adjust comment for function.  If identical is
	true, return 1 if any overlap has been found.

2019-07-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/65819
	* gfortran.dg/dependency_54.f90: New test.

From-SVN: r273807

	* stmt.c (expand_case): Try to narrow the index type if it's larger
	than a word.  Tidy up.

From-SVN: r273805

	* cif-code.def (NEVER_CALL): New code.
	* ipa-inline.c (want_inline_small_function_p): Fix formatting issues.
	Set the failure to CIF_NEVER_CALL if the IPA count is zero.

From-SVN: r273804

The Thumb-2 movsi patterns try to prefer low registers for loads and stores.
However this is done incorrectly by using 2 separate variants with 'l' and 'h'
register classes.  The register allocator will only use low registers, and
as a result we end up with significantly more spills and moves to high
registers.  Fix this by merging the alternatives and use 'l*r' to indicate
preference for low registers.  This saves ~400 instructions from the pr77308
testcase.

    gcc/
	* config/arm/thumb2.md (thumb2_movsi_insn): Fix load/store low reg.
	* config/arm/vfp.md (thumb2_movsi_vfp): Likewise.

From-SVN: r273802

From-SVN: r273800

tree-vrp.c (extract_range_from_multiplicative_op): Add type parameter and use it instead of guessing expression type from the...

2019-07-25  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (extract_range_from_multiplicative_op): Add
	type parameter and use it instead of guessing expression
	type from the first operand.
	(extract_range_from_binary_expr): Pass expr_type down.

From-SVN: r273797

GCC 10 now supports having RTL codes being code attributes (thanks
Richard) allowing us to map smax to smin and vice versa.
This means we can clean up their use in the saturation patterns that do
the cross product of [smin, smax] and use the pattern
predicate to cancel out the nonsense ones.

	* config/arm/arm.md (SATrev): Change to code attribute.
	(*satsi_<SAT:code>): Adjust for the above.
	(*satsi_<SAT:code>_shift): Likewise.

From-SVN: r273796

gimple-loop-versioning.cc (loop_versioning::prune_loop_conditions): Make value_range * temporary const.

2019-07-25  Richard Biener  <rguenther@suse.de>

	* gimple-loop-versioning.cc (loop_versioning::prune_loop_conditions):
	Make value_range * temporary const.
	* gimple-ssa-evrp-analyze.c (evrp_range_analyzer::try_find_new_range):
	Likewise.
	(evrp_range_analyzer::record_ranges_from_): Likewise.
	(evrp_range_analyzer::pop_value_range): Return a const value_range *,
	deal with having recorded a const one.
	* gimple-ssa-evrp-analyze.h (evrp_range_analyzer::get_value_range):
	Return a const value_range *.
	(evrp_range_analyzer::pop_value_range): Likewise.
	(evrp_range_analyzer::stack): Record const value_range *s.
	* gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children):
	Adjust.
	* gimple-ssa-sprintf.c (get_int_range): Likewise.
	(format_integer): Likewise.
	(sprintf_dom_walker::handle_gimple_call): Likewise.
	* tree-ssa-dom.c (simplify_stmt_for_jump_threading): Likewise.
	* tree-vrp.c (vrp_prop::set_def_to_varying): Add.
	(vrp_prop::get_value_range): Adjust.
	(vrp_prop::vrp_initialize): Use set_def_to_varying instead of
	modifying the lattice in-place.
	(vrp_prop::visit_stmt): Likewise.
	* vr-values.c (vr_values::get_lattice_entry): New private method.
	(vr_values::get_value_range): Wrap it and return a const
	value_range *.
	(vr_values::set_def_to_varying): New.
	(vr_values::set_defs_to_varying): Use it.
	(vr_values::update_value_range): Likewise.
	(vr_values::vrp_stmt_computes_nonzero): Adjust.
	(values::op_with_constant_singleton_va): Likewise.
	(vr_values::extract_range_for_var_from_co): Likewise.
	(vr_values::extract_range_from_ssa_name): Likewise.
	(vr_values::extract_range_from_cond_expr): Likewise.
	(vr_values::extract_range_basic): Likewise.
	(compare_ranges): Take const value_range *, adjust.
	(compare_range_with_value): Likewise.
	(vrp_valueize): Adjust.
	(vrp_valueize_1): Likewise.
	(vr_values::get_vr_for_comparison): Return a const value_range *.
	(vr_values::compare_name_with_value): Adjust.
	(vr_values::compare_names): Likewise.
	(vr_values::vrp_evaluate_conditional_warnv_with_ops_using_ranges):
	Likewise.
	(vr_values::vrp_evaluate_conditional): Likewise.
	(find_case_label_ranges): Take a const value_range *.
	(vr_values::vrp_visit_switch_stmt): Adjust.
	(vr_values::extract_range_from_phi_node): Likewise.
	(vr_values::simplify_div_or_mod_using_ran): Likewise.
	(vr_values::simplify_abs_using_ranges): Likewise.
	(test_for_singularity): Take a const value_range *.
	(range_fits_type_p): Likewise.
	(vr_values::simplify_cond_using_ranges_1): Adjust.
	(vr_values::simplify_cond_using_ranges_2): Likewise.
	(vr_values::simplify_switch_using_ranges): Likewise.
	(vr_values::simplify_float_conversion_usi): Likewise.
	(vr_values::two_valued_val_range_p): Likewise.
	* vr-values.h (vr_values::get_value_range): Return a const
	value_range *.
	(vr_values::set_def_to_varying): New.
	(vr_values::get_lattice_entry): New private method.
	(vr_values::get_vr_for_comparison): Return a const value_range *.

From-SVN: r273792

2019-07-25  Martin Liska  <mliska@suse.cz>
	    Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

	PR c++/23383
	* common.opt: Add -fallocation-dce
	* gimple.c (gimple_call_operator_delete_p): New.
	* gimple.h (gimple_call_operator_delete_p): Likewise.
	* tree-core.h (enum function_decl_type): Add OPERATOR_DELETE.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Handle
	DECL_IS_OPERATOR_DELETE_P.
	(mark_all_reaching_defs_necessary_1): Likewise.
	(propagate_necessity): Likewise.
	(eliminate_unnecessary_stmts): Handle
	gimple_call_operator_delete_p.
	* tree-streamer-in.c (unpack_ts_function_decl_value_fields):
	Add packing of OPERATOR_DELETE.
	* tree-streamer-out.c (pack_ts_function_decl_value_fields):
	Similarly here.
	* tree.h (DECL_IS_OPERATOR_DELETE_P): New.
	(DECL_SET_IS_OPERATOR_DELETE): New.
	(DECL_IS_REPLACEABLE_OPERATOR_NEW_P): Likewise.
2019-07-25  Martin Liska  <mliska@suse.cz>
	    Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

	PR c++/23383
	* c-decl.c (merge_decls): Merge OPERATOR_DELETE flag.
2019-07-25  Martin Liska  <mliska@suse.cz>
	    Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

	PR c++/23383
	* decl.c (cxx_init_decl_processing): Mark delete operators
	with DECL_SET_IS_OPERATOR_DELETE.
2019-07-25  Martin Liska  <mliska@suse.cz
	    Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

	PR c++/23383
	* g++.dg/cpp1y/new1.C: New test.
2019-07-25  Martin Liska  <mliska@suse.cz>
	    Dominik Infuhr  <dominik.infuehr@theobroma-systems.com>

	PR c++/23383
	* testsuite/ext/bitmap_allocator/check_delete.cc: Add
	-fno-allocation-dce.
	* testsuite/ext/bitmap_allocator/check_new.cc: Likewise.
	* testsuite/ext/new_allocator/check_delete.cc: Likewise.
	* testsuite/ext/new_allocator/check_new.cc: Likewise.

Co-Authored-By: Dominik Infuehr <dominik.infuehr@theobroma-systems.com>

From-SVN: r273791

2019-07-25  Martin Liska  <mliska@suse.cz>

	* calls.c (maybe_warn_alloc_args_overflow): Use new macros
	(e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
	* coverage.c (coverage_begin_function): Likewise.
	* fold-const.c (tree_expr_nonzero_warnv_p): Likewise.
	* gimple.c (gimple_call_nonnull_result_p): Likewise.
	* ipa-icf.c (sem_item::compare_referenced_symbol_properties): Likewise.
	(sem_item::hash_referenced_symbol_properties): Likewise.
	* lto-streamer-out.c (hash_tree): Likewise.
	* predict.c (expr_expected_value_1): Likewise.
	* tree-inline.c (expand_call_inline): Likewise.
	* tree-streamer-in.c (unpack_ts_function_decl_value_fields): Likewise.
	* tree-streamer-out.c (pack_ts_function_decl_value_fields): Likewise.
	* tree-core.h (enum function_decl_type): New enum.
	(struct tree_function_decl): Remove operator_new_flag and lambda_function.
	* tree.h (FUNCTION_DECL_DECL_TYPE): New.
	(set_function_decl_type): Likewise.
	(DECL_IS_OPERATOR_NEW_P): New.
	(DECL_SET_IS_OPERATOR_NEW): Likewise.
	(DECL_LAMBDA_FUNCTION): Likewise.
	(DECL_LAMBDA_FUNCTION_P): Likewise.
	(DECL_IS_OPERATOR_NEW): Remove.
	(DECL_SET_LAMBDA_FUNCTION): Likewise.
2019-07-25  Martin Liska  <mliska@suse.cz>

	* c-decl.c (merge_decls): Use new macros
	(e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
2019-07-25  Martin Liska  <mliska@suse.cz>

	* decl.c (duplicate_decls): Use new macros
	(e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).
	(cxx_init_decl_processing): Likewise.
	(grok_op_properties): Likewise.
	* parser.c (cp_parser_lambda_declarator_opt): Likewise.
2019-07-25  Martin Liska  <mliska@suse.cz>

	* lto-common.c (compare_tree_sccs_1): Use new macros
	(e.g. DECL_SET_LAMBDA_FUNCTION and DECL_LAMBDA_FUNCTION_P).

From-SVN: r273790

Currently get_most_common_single_value could only return the max hist
<value, count>, add sort after reading from disk, then it return nth value
in later use.  Rename it to get_nth_most_common_value.

gcc/ChangeLog:

2019-07-15  Xiong Hu Luo  <luoxhu@linux.ibm.com>

	* ipa-profile.c (get_most_common_single_value): Use
	get_nth_most_common_value.
	* profile.c (sort_hist_value): New function.
	(compute_value_histograms): Call sort_hist_value to sort the
	values after loading from disk.
	* value-prof.c (get_most_common_single_value): Rename to ...
	get_nth_most_common_value.  Add input params n, return
	the n_th value and count.
	(gimple_divmod_fixed_value_transform): Use
	get_nth_most_common_value.
	(gimple_ic_transform): Likewise.
	(gimple_stringops_transform): Likewise.
	* value-prof.h (get_most_common_single_value): Add input params
	n, default to 0.

From-SVN: r273789