libgcc/ChangeLog:

	PR target/112777

	* libgcov.h (GCOV_SUPPORTS_ATOMIC):  Honor that __LIBGCC_HAVE_LIBATOMIC is
	always defined as either 0 or 1.

I've noticed the r14-5579 commit introduced some formatting issues,
this patch fixes what I saw.

2023-11-21  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* tree-profile.cc (gen_counter_update, tree_profiling): Formatting
	fixes.
libgcc/
	* libgcov.h (GCOV_SUPPORTS_ATOMIC): Formatting fixes.

The code coverage support uses counters to determine which edges in the control
flow graph were executed.  If a counter overflows, then the code coverage
information is invalid.  Therefore the counter type should be a 64-bit integer.
In multi-threaded applications, it is important that the counter increments are
atomic.  This is not the case by default.  The user can enable atomic counter
increments through the -fprofile-update=atomic and
-fprofile-update=prefer-atomic options.

If the target supports 64-bit atomic operations, then everything is fine.  If
not and -fprofile-update=prefer-atomic was chosen by the user, then non-atomic
counter increments will be used.  However, if the target does not support the
required atomic operations and -fprofile-atomic=update was chosen by the user,
then a warning was issued and as a forced fallback to non-atomic operations was
done.  This is probably not what a user wants.  There is still hardware on the
market which does not have atomic operations and is used for multi-threaded
applications.  A user which selects -fprofile-update=atomic wants consistent
code coverage data and not random data.

This patch removes the fallback to non-atomic operations for
-fprofile-update=atomic the target platform supports libatomic.  To
mitigate potential performance issues an optimization for systems which
only support 32-bit atomic operations is provided.  Here, the edge
counter increments are done like this:

  low = __atomic_add_fetch_4 (&counter.low, 1, MEMMODEL_RELAXED);
  high_inc = low == 0 ? 1 : 0;
  __atomic_add_fetch_4 (&counter.high, high_inc, MEMMODEL_RELAXED);

In gimple_gen_time_profiler() this split operation cannot be used, since the
updated counter value is also required.  Here, a library call is emitted.  This
is not a performance issue since the update is only done if counters[0] == 0.

gcc/c-family/ChangeLog:

	* c-cppbuiltin.cc (c_cpp_builtins):  Define
	__LIBGCC_HAVE_LIBATOMIC for libgcov.

gcc/ChangeLog:

	* doc/invoke.texi (-fprofile-update): Clarify default method.  Document
	the atomic method behaviour.
	* tree-profile.cc (enum counter_update_method): New.
	(counter_update): Likewise.
	(gen_counter_update): Use counter_update_method.  Split the
	atomic counter update in two 32-bit atomic operations if
	necessary.
	(tree_profiling): Select counter_update_method.

libgcc/ChangeLog:

	* libgcov.h (GCOV_SUPPORTS_ATOMIC): Always define it.
	Set it also to 1, if __LIBGCC_HAVE_LIBATOMIC is defined.

This reverts commit 8cdcea51.

gcc/c-family/ChangeLog:

	* c-cppbuiltin.cc (c_cpp_builtins): Do not define
	__LIBGCC_GCOV_TYPE_SIZE.

gcc/ChangeLog:

	* config/sparc/rtemself.h (SPARC_GCOV_TYPE_SIZE): Remove.
	* config/sparc/sparc.cc (sparc_gcov_type_size): Likewise.
	(TARGET_GCOV_TYPE_SIZE): Likewise.
	* coverage.cc (get_gcov_type): Use LONG_LONG_TYPE_SIZE instead
	of removed target hook.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in (TARGET_GCOV_TYPE_SIZE): Remove.
	* target.def: Likewise.
	* targhooks.cc (default_gcov_type_size): Likewise.
	* targhooks.h (default_gcov_type_size): Likewise.

libgcc/ChangeLog:

	* libgcov.h (gcov_type): Use LONG_LONG_TYPE_SIZE.
	(gcov_type_unsigned): Likewise.

gcc/ChangeLog:

	* gcov-io.cc (gcov_write_summary): Rename to ...
	(gcov_write_object_summary): ... this.
	* gcov-io.h (GCOV_TAG_OBJECT_SUMMARY_LENGTH): Rename from ...
	(GCOV_TAG_SUMMARY_LENGTH): ... this.

libgcc/ChangeLog:

	* libgcov-driver.c: Use new function.
	* libgcov.h (gcov_write_summary): Rename to ...
	(gcov_write_object_summary): ... this.

gcov_info::n_functions type is initialized by generated
code in build_info_type:

/* n_functions */
field = build_decl (BUILTINS_LOCATION, FIELD_DECL, NULL_TREE,
		    get_gcov_unsigned_t ());

It uses gcov_unsigned_t, but the struct definition in libgcov.h uses
unsigned type. That brings troubled on 16-bit targets.

	PR gcov-profile/105535

libgcc/ChangeLog:

	* libgcov.h (struct gcov_info): Use gcov_unsigned_t for
	n_functions.

Co-Authored-By: Hans-Peter Helfert <peter-helfert@t-online.de>

This function is only used by gcov_write_length() in the gcov-io.cc file.

gcc/

	* gcov-io.cc (gcov_seek): Make it static.
	* gcov-io.h (struct gcov_summary): Do not mention gcov_seek().

libgcc/

	* libgcov.h (gcov_seek): Remove define and declaration.

gcc/

	* gcov-io.cc (gcov_open): Always use the mode parameter.
	* gcov-io.h (gcov_open): Declare it unconditionally.

libgcc/

	* libgcov-driver-system.c (gcov_exit_open_gcda_file): Open file for
	reading and writing.
	* libgcov-util.c (read_gcda_file): Open file for reading.
	* libgcov.h (gcov_open): Delete declaration.

Support merging of profiles that are built from a different .o files
but belong to the same source file. Moreover, a checksum is verified
during profile merging and so we can safely combine such profile.

	PR gcov-profile/90364

gcc/ChangeLog:

	* coverage.c (build_info): Emit checksum to the global variable.
	(build_info_type): Add new field for checksum.
	(coverage_obj_finish): Pass object_checksum.
	(coverage_init): Use 0 as checksum for .gcno files.
	* gcov-dump.c (dump_gcov_file): Dump also new checksum field.
	* gcov.c (read_graph_file): Read also checksum.
	* doc/invoke.texi: Document the behaviour change.

libgcc/ChangeLog:

	* libgcov-driver.c (merge_one_data): Skip timestamp and verify
	checksums.
	(write_one_data): Write also checksum.
	* libgcov-util.c (read_gcda_file): Read also checksum field.
	* libgcov.h (struct gcov_info): Add new field.

If -fprofile-update=atomic is used, then the target must provide atomic
operations for the counters of the type returned by get_gcov_type().
This is a 64-bit type for targets which have a 64-bit long long type.
On 32-bit targets this could be an issue since they may not provide
64-bit atomic operations.  Allow targets to override the default type
size with the new TARGET_GCOV_TYPE_SIZE target hook.

If a 32-bit gcov type size is used, then there is currently a warning in
libgcov-driver.c in a dead code block due to
sizeof (counter) == sizeof (gcov_unsigned_t):

libgcc/libgcov-driver.c: In function 'dump_counter':
libgcc/libgcov-driver.c:401:46: warning: right shift count >= width of type [-Wshift-count-overflow]
  401 |     dump_unsigned ((gcov_unsigned_t)(counter >> 32), dump_fn, arg);
      |                                              ^~

gcc/c-family/

	* c-cppbuiltin.c (c_cpp_builtins): Define
	__LIBGCC_GCOV_TYPE_SIZE if flag_building_libgcc is true.

gcc/

	* config/sparc/rtemself.h (SPARC_GCOV_TYPE_SIZE): Define.
	* config/sparc/sparc.c (sparc_gcov_type_size): New.
	(TARGET_GCOV_TYPE_SIZE): Redefine if SPARC_GCOV_TYPE_SIZE is defined.
	* coverage.c (get_gcov_type): Use targetm.gcov_type_size().
	* doc/tm.texi (TARGET_GCOV_TYPE_SIZE): Add hook under "Misc".
	* doc/tm.texi.in: Regenerate.
	* target.def (gcov_type_size): New target hook.
	* targhooks.c (default_gcov_type_size): New.
	* targhooks.h (default_gcov_type_size): Declare.
	* tree-profile.c (gimple_gen_edge_profiler): Use precision of
	gcov_type_node.
	(gimple_gen_time_profiler): Likewise.

libgcc/

	* libgcov.h (gcov_type): Define using __LIBGCC_GCOV_TYPE_SIZE.
	(gcov_type_unsigned): Likewise.

Add __gcov_info_to_gcda() to libgcov to get the gcda data for a gcda info in a
freestanding environment.  It is intended to be used with the
-fprofile-info-section option.  A crude test program which doesn't use a linker
script is (use "gcc -coverage -fprofile-info-section -lgcov test.c" to compile
it):

  #include <gcov.h>
  #include <stdio.h>
  #include <stdlib.h>

  extern const struct gcov_info *my_info;

  static void
  filename (const char *f, void *arg)
  {
    printf("filename: %s\n", f);
  }

  static void
  dump (const void *d, unsigned n, void *arg)
  {
    const unsigned char *c = d;

    for (unsigned i = 0; i < n; ++i)
      printf ("%02x", c[i]);
  }

  static void *
  allocate (unsigned length, void *arg)
  {
    return malloc (length);
  }

  int main()
  {
    __asm__ volatile (".set my_info, .LPBX2");
    __gcov_info_to_gcda (my_info, filename, dump, allocate, NULL);
    return 0;
  }

With this patch, <stdint.h> is included in libgcov-driver.c even if
inhibit_libc is defined.  This header file should be also available for
freestanding environments.  If this is not the case, then we have to define
intptr_t somehow.

The patch removes one use of memset() which makes the <string.h> include
superfluous.

gcc/

	* gcov-io.h (gcov_write): Declare.
	* gcov-io.c (gcov_write): New.
	(gcov_write_counter): Remove.
	(gcov_write_tag_length): Likewise.
	(gcov_write_summary): Replace gcov_write_tag_length() with calls to
	gcov_write_unsigned().
	* doc/invoke.texi (fprofile-info-section): Mention
	__gcov_info_to_gdca().

gcc/testsuite/

	* gcc.dg/gcov-info-to-gcda.c: New test.

libgcc/

	* Makefile.in (LIBGCOV_DRIVER): Add _gcov_info_to_gcda.
	* gcov.h (gcov_info): Declare.
	(__gcov_info_to_gdca): Likewise.
	* libgcov.h (gcov_write_counter): Remove.
	(gcov_write_tag_length): Likewise.
	* libgcov-driver.c (#include <stdint.h>): New.
	(#include <string.h>): Remove.
	(NEED_L_GCOV): Conditionally define.
	(NEED_L_GCOV_INFO_TO_GCDA): Likewise.
	(are_all_counters_zero): New.
	(gcov_dump_handler): Likewise.
	(gcov_allocate_handler): Likewise.
	(dump_unsigned): Likewise.
	(dump_counter): Likewise.
	(write_topn_counters): Add dump_fn, allocate_fn, and arg parameters.
	Use dump_unsigned() and dump_counter().
	(write_one_data): Add dump_fn, allocate_fn, and arg parameters.  Use
	dump_unsigned(), dump_counter(), and are_all_counters_zero().
	(__gcov_info_to_gcda): New.

If you attempt a profiled bootstrap on the MinGW platforms with -jN, N > 1,
it miserably fails because of profile mismatches all over the place, the
reason being that gcov has no support for parallelism on these platforms.

libgcc/
	* libgcov.h: For the target, define GCOV_LOCKED_WITH_LOCKING
	if __MSVCRT__ and, for the host, define it if HOST_HAS_LK_LOCK.
	* libgcov-driver.c: Add directives if GCOV_LOCKED_WITH_LOCKING.
gcc/
	* configure.ac: Check for the presence of sys/locking.h header and
	for whether _LK_LOCK is supported by _locking.
	* configure: Regenerate.
	* config.in: Likewise.
	* gcov-io.h: Define GCOV_LOCKED_WITH_LOCKING if HOST_HAS_LK_LOCK.
	* gcov-io.c (gcov_open): Add support for GCOV_LOCKED_WITH_LOCKING.
	* system.h: Include <sys/locking.h> if HAVE_SYS_LOCKING_H.

As reported, bootstrap currently fails on older Darwin because MAP_ANONYMOUS
is not defined.

The following is what gcc/system.h does, so I think it should work for
libgcov.

2021-03-06  Jakub Jelinek  <jakub@redhat.com>

	PR gcov-profile/99406
	* libgcov.h (MAP_FAILED, MAP_ANONYMOUS): If HAVE_SYS_MMAN_H is
	defined, define these macros if not defined already.

libgcc/ChangeLog:

	PR gcov-profile/99105
	* libgcov-driver.c (write_top_counters): Rename to ...
	(write_topn_counters): ... this.
	(write_one_data): Pre-allocate buffer for number of items
	in the corresponding linked lists.
	* libgcov.h (malloc_mmap): New function.
	(allocate_gcov_kvp): Use it.

gcc/testsuite/ChangeLog:

	PR gcov-profile/99105
	* gcc.dg/tree-prof/indir-call-prof-malloc.c: Use profile
	correction as the wrapped malloc is called one more time
	from libgcov.
	* gcc.dg/tree-prof/pr97461.c: Likewise.

libgcc/ChangeLog:

	PR gcov-profile/99385
	* libgcov.h (allocate_gcov_kvp): Call mmap with fd equal to -1.

gcc/ChangeLog:

	PR gcov-profile/97461
	* gcov-io.h (GCOV_PREALLOCATED_KVP): Remove.

libgcc/ChangeLog:

	PR gcov-profile/97461
	* config.in: Regenerate.
	* configure: Likewise.
	* configure.ac: Check sys/mman.h header file
	* libgcov-driver.c (struct gcov_kvp): Remove static
	pre-allocated pool and use a dynamic one.
	* libgcov.h (MMAP_CHUNK_SIZE): New.
	(gcov_counter_add): Use mmap to allocate pool for struct
	gcov_kvp.

libgcc/ChangeLog:

	PR gcov-profile/98739
	* libgcov.h (gcov_topn_add_value): Do not train when
	we have a merged profile with a negative number of total
	value.

gcc/ChangeLog:

	PR gcov-profile/98739
	* common.opt: Add missing sign symbol.
	* value-prof.c (get_nth_most_common_value): Restore handling
	of PROFILE_REPRODUCIBILITY_PARALLEL_RUNS and
	PROFILE_REPRODUCIBILITY_MULTITHREADED.

libgcc/ChangeLog:

	PR gcov-profile/98739
	* libgcov-merge.c (__gcov_merge_topn): Mark when merging
	ends with a dropped counter.
	* libgcov.h (gcov_topn_add_value): Add return value.

gcc/ChangeLog:

	PR gcov-profile/97461
	* gcov-io.h (GCOV_PREALLOCATED_KVP): Pre-allocate 64
	static counters.

libgcc/ChangeLog:

	PR gcov-profile/97461
	* libgcov.h (gcov_counter_add): Use first static counters
	as it should help to have malloc wrappers set up.

gcc/testsuite/ChangeLog:

	PR gcov-profile/97461
	* gcc.dg/tree-prof/pr97461.c: New test.

gcc/ChangeLog:

	* gcov-io.h (GCOV_PREALLOCATED_KVP): New.

libgcc/ChangeLog:

	* libgcov-driver.c: Add __gcov_kvp_pool
	and __gcov_kvp_pool_index variables.
	* libgcov.h (allocate_gcov_kvp): New.
	(gcov_topn_add_value): Use it.

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-prof/indir-call-prof-malloc.c: New test.

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.

libgcc/ChangeLog:

	* libgcov-util.c (read_gcda_finalize): Remove const operator.
	(merge_wrapper): Add both counts and use them properly.
	(topn_to_memory_representation): New function.
	(gcov_merge): Covert on disk representation to in memory
	representation.
	* libgcov.h: Remove const operator.

The patch fixes tree-prof.exp tests on solaris11 and i686-linux-gnu,
problem was that sizeof of a pointer is different from sizeof gcov_type.

I'm going to install it if there are no objections.
Thanks,
Martin

libgcc/ChangeLog:

	PR gcov-profile/95494
	* libgcov-driver.c (write_top_counters): Cast first to
	intptr_t as sizeof(*) != sizeof(gcov_type).
	* libgcov.h (gcov_counter_set_if_null): Remove.
	(gcov_topn_add_value): Cast first to intptr_t and update
	linked list directly.

We must guard used atomic builtins with GCOV_SUPPORTS_ATOMIC.
The patch is tested on AIX and I'm going to push it.

libgcc/ChangeLog:

	PR gcov-profile/95480
	* libgcov-profiler.c (GCOV_SUPPORTS_ATOMIC): Move to...
	* libgcov.h (GCOV_SUPPORTS_ATOMIC): ...here.
	(gcov_counter_add): Use GCOV_SUPPORTS_ATOMIC guard.
	(gcov_counter_set_if_null): Likewise.

The calloc was in the original tested version of the patch
and I made accidental last minute change.

Installed to master as obvious.

libgcc/ChangeLog:

	* libgcov.h (gcov_topn_add_value): Use xcalloc instead
	of xmalloc.

gcc/ChangeLog:

	* coverage.c (get_coverage_counts): Skip sanity check for TOP N counters
	as they have variable number of counters.
	* gcov-dump.c (main): Add new option -r.
	(print_usage): Likewise.
	(tag_counters): All new raw format.
	* gcov-io.h (struct gcov_kvp): New.
	(GCOV_TOPN_VALUES): Remove.
	(GCOV_TOPN_VALUES_COUNTERS): Likewise.
	(GCOV_TOPN_MEM_COUNTERS): New.
	(GCOV_TOPN_DISK_COUNTERS): Likewise.
	(GCOV_TOPN_MAXIMUM_TRACKED_VALUES): Likewise.
	* ipa-profile.c (ipa_profile_generate_summary): Use
	GCOV_TOPN_MAXIMUM_TRACKED_VALUES.
	(ipa_profile_write_edge_summary): Likewise.
	(ipa_profile_read_edge_summary): Likewise.
	(ipa_profile): Remove usage of GCOV_TOPN_VALUES.
	* profile.c (sort_hist_values): Sort variable number
	of counters.
	(compute_value_histograms): Special case for TOP N counters
	that have dynamic number of key-value pairs.
	* value-prof.c (dump_histogram_value): Dump variable number
	of key-value pairs.
	(stream_in_histogram_value): Stream in variable number
	of key-value pairs for TOP N counter.
	(get_nth_most_common_value): Deal with variable number
	of key-value pairs.
	(dump_ic_profile): Use GCOV_TOPN_MAXIMUM_TRACKED_VALUES
	for loop iteration.
	(gimple_find_values_to_profile): Set GCOV_TOPN_MEM_COUNTERS
	to n_counters.
	* doc/gcov-dump.texi: Document new -r option.

libgcc/ChangeLog:

	* libgcov-driver.c (prune_topn_counter): Remove.
	(prune_counters): Likewise.
	(merge_one_data): Special case TOP N counters
	as they have variable length.
	(write_top_counters): New.
	(write_one_data): Special case TOP N.
	(dump_one_gcov): Do not prune TOP N counters.
	* libgcov-merge.c (merge_topn_values_set): Remove.
	(__gcov_merge_topn): Use gcov_topn_add_value.
	* libgcov-profiler.c (__gcov_topn_values_profiler_body):
	Likewise here.
	* libgcov.h (gcov_counter_add): New.
	(gcov_counter_set_if_null): Likewise.
	(gcov_topn_add_value): New.

gcc/ChangeLog:
2020-05-27  Dong JianQiang  <dongjianqiang2@huawei.com>

	PR gcov-profile/95332
	* gcov-io.c (gcov_var::endian): Move field.
	(from_file): Add IN_GCOV_TOOL check.
	* gcov-io.h (gcov_magic): Ditto.

libgcc/ChangeLog:
2020-05-27  Dong JianQiang  <dongjianqiang2@huawei.com>

	PR gcov-profile/95332
	* libgcov-util.c (read_gcda_file): Call gcov_magic.
	* libgcov.h (gcov_magic): Disable GCC poison.

	PR gcov-profile/93623
	* Makefile.in: Add _gcov_lock_unlock to LIBGCOV_INTERFACE.
	* libgcov-interface.c (ALIAS_void_fn): Remove.
	(__gcov_lock): New.
	(__gcov_unlock): New.
	(__gcov_flush): Use __gcov_lock and __gcov_unlock.
	(__gcov_reset): Likewise.
	(__gcov_dump): Likewise.
	* libgcov.h (__gcov_lock): New declaration.
	(__gcov_unlock): Likewise.

	PR gcov-profile/93403
	* tree-profile.c (gimple_init_gcov_profiler): Generate
	both __gcov_indirect_call_profiler_v4 and
	__gcov_indirect_call_profiler_v4_atomic.
	PR gcov-profile/93403
	* libgcov-profiler.c (__gcov_indirect_call_profiler_v4):
	Call __gcov_indirect_call_profiler_body.
	(__gcov_indirect_call_profiler_body): New.
	(__gcov_indirect_call_profiler_v4_atomic): New.
	* libgcov.h (__gcov_indirect_call_profiler_v4_atomic):
	New declaration.

From-SVN: r279813

2019-07-03  Martin Liska  <mliska@suse.cz>

	* gcov-counter.def (GCOV_COUNTER_V_SINGLE): Remove.
	(GCOV_COUNTER_V_TOPN): New.
	(GCOV_COUNTER_V_INDIR): Use _topn.
	* gcov-io.h (GCOV_DISK_SINGLE_VALUES): Remove.
	(GCOV_TOPN_VALUES): New.
	(GCOV_SINGLE_VALUE_COUNTERS): Remove.
	(GCOV_TOPN_VALUES_COUNTERS): New.
	* profile.c (instrument_values): Use HIST_TYPE_TOPN_VALUES.
	* tree-profile.c:
	(gimple_init_gcov_profiler): Rename variables from one_value
	to topn_values.
	(gimple_gen_one_value_profiler): Remove.
	(gimple_gen_topn_values_profiler): New function.
	* value-prof.c (dump_histogram_value): Use TOPN_VALUES
	names instead of SINGLE_VALUE.
	(stream_out_histogram_value): Likewise.
	(stream_in_histogram_value): Likewise.
	(get_most_common_single_value): Likewise.
	(gimple_divmod_fixed_value_transform): Likewise.
	(gimple_stringops_transform): Likewise.
	(gimple_divmod_values_to_profile): Likewise.
	(gimple_stringops_values_to_profile): Likewise.
	(gimple_find_values_to_profile): Likewise.
	* value-prof.h (enum hist_type): Rename to TOPN.
	(gimple_gen_one_value_profiler): Remove.
	(gimple_gen_topn_values_profiler): New.
2019-07-03  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Use topn_values instead of one_value names.
	* libgcov-merge.c (__gcov_merge_single): Move to ...
	(__gcov_merge_topn): ... this.
	(merge_single_value_set): Move to ...
	(merge_topn_values_set): ... this.
	* libgcov-profiler.c (__gcov_one_value_profiler_body): Move to
	...
	(__gcov_topn_values_profiler_body): ... this.
	(__gcov_one_value_profiler_v2): Move to ...
	(__gcov_topn_values_profiler): ... this.
	(__gcov_one_value_profiler_v2_atomic): Move to ...
	(__gcov_topn_values_profiler_atomic): ... this.
	(__gcov_indirect_call_profiler_v4): Remove.
	* libgcov-util.c (__gcov_single_counter_op): Move to ...
	(__gcov_topn_counter_op): ... this.
	* libgcov.h (L_gcov_merge_single): Remove.
	(L_gcov_merge_topn): New.
	(__gcov_merge_single): Remove.
	(__gcov_merge_topn): New.
	(__gcov_one_value_profiler_v2): Move to ..
	(__gcov_topn_values_profiler): ... this.
	(__gcov_one_value_profiler_v2_atomic): Move to ...
	(__gcov_topn_values_profiler_atomic): ... this.

From-SVN: r273005

2019-06-10  Martin Liska  <mliska@suse.cz>

	PR bootstrap/90808
	* libgcov.h: Add ATTRIBUTE_UNUSED.

From-SVN: r272114

2019-06-10  Martin Liska  <mliska@suse.cz>

	* gcov-io.h (GCOV_DISK_SINGLE_VALUES): New.
	(GCOV_SINGLE_VALUE_COUNTERS): Likewise.
	* ipa-profile.c (ipa_profile_generate_summary):
	Use get_most_common_single_value.
	* tree-profile.c (gimple_init_gcov_profiler):
	Instrument with __gcov_one_value_profiler_v2
	and __gcov_indirect_call_profiler_v4.
	* value-prof.c (dump_histogram_value):
	Print all values for HIST_TYPE_SINGLE_VALUE.
	(stream_out_histogram_value): Update assert for
	N values.
	(stream_in_histogram_value): Set number of
	counters for HIST_TYPE_SINGLE_VALUE.
	(get_most_common_single_value): New.
	(gimple_divmod_fixed_value_transform):
	Use get_most_common_single_value.
	(gimple_ic_transform): Likewise.
	(gimple_stringops_transform): Likewise.
	(gimple_find_values_to_profile): Set number
	of counters for HIST_TYPE_SINGLE_VALUE.
	* value-prof.h (get_most_common_single_value):
	New.
2019-06-10  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Add __gcov_one_value_profiler_v2,
	__gcov_one_value_profiler_v2_atomic and
	__gcov_indirect_call_profiler_v4.
	* libgcov-merge.c (__gcov_merge_single): Change
	function signature.
	(merge_single_value_set): New.
	* libgcov-profiler.c (__gcov_one_value_profiler_body):
	Update functionality.
	(__gcov_one_value_profiler): Remove.
	(__gcov_one_value_profiler_v2): ... this.
	(__gcov_one_value_profiler_atomic): Rename to ...
	(__gcov_one_value_profiler_v2_atomic): this.
	(__gcov_indirect_call_profiler_v3): Rename to ...
	(__gcov_indirect_call_profiler_v4): ... this.
	* libgcov.h (__gcov_one_value_profiler): Remove.
	(__gcov_one_value_profiler_atomic): Remove.
	(__gcov_one_value_profiler_v2_atomic): New.
	(__gcov_indirect_call_profiler_v3): Remove.
	(__gcov_one_value_profiler_v2): New.
	(__gcov_indirect_call_profiler_v4): New.
	(gcov_get_counter_ignore_scaling): New function.

From-SVN: r272106

2019-06-07  Martin Liska  <mliska@suse.cz>

	* doc/invoke.texi: Remove param.
	* gcov-counter.def (GCOV_COUNTER_ICALL_TOPNV):
	Remove.
	* gcov-io.h (GCOV_ICALL_TOPN_VAL): Likewise.
	(GCOV_ICALL_TOPN_NCOUNTS): Likewise.
	* params.def (PARAM_INDIR_CALL_TOPN_PROFILE): Likewise.
	* profile.c (instrument_values): Remove
	HIST_TYPE_INDIR_CALL_TOPN.
	* tree-profile.c (init_ic_make_global_vars):
	Always build __gcov_indirect_call only.
	(gimple_init_gcov_profiler): Remove usage
	of PARAM_INDIR_CALL_TOPN_PROFILE.
	(gimple_gen_ic_profiler): Likewise.
	* value-prof.c (dump_histogram_value): Likewise.
	(stream_in_histogram_value): Likewise.
	(gimple_indirect_call_to_profile): Likewise.
	(gimple_find_values_to_profile): Likewise.
	* value-prof.h (enum hist_type): Likewise.
2019-06-07  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Remove usage of
	_gcov_merge_icall_topn.
	* libgcov-driver.c (gcov_sort_n_vals): Remove.
	(gcov_sort_icall_topn_counter): Likewise.
	(gcov_sort_topn_counter_arrays): Likewise.
	(dump_one_gcov): Remove call to gcov_sort_topn_counter_arrays.
	* libgcov-merge.c (__gcov_merge_icall_topn): Remove.
	* libgcov-profiler.c (__gcov_topn_value_profiler_body):
	Likewise.
	(GCOV_ICALL_COUNTER_CLEAR_THRESHOLD): Remove.
	(struct indirect_call_tuple): Remove.
	(__gcov_indirect_call_topn_profiler): Remove.
	* libgcov-util.c (__gcov_icall_topn_counter_op): Remove.
	* libgcov.h (gcov_sort_n_vals): Remove.
	(L_gcov_merge_icall_topn): Likewise.
	(__gcov_merge_icall_topn): Likewise.
	(__gcov_indirect_call_topn_profiler): Likewise.

From-SVN: r272030

2019-01-18  Martin Liska  <mliska@suse.cz>

	* params.def: Fix comment.
	* tree-profile.c (gimple_init_gcov_profiler): Bump function
	name.
	(gimple_gen_ic_func_profiler): Likewise.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* gcc.dg/no_profile_instrument_function-attr-1.c: Update
	expected function name.
2019-01-18  Martin Liska  <mliska@suse.cz>

	* libgcov-profiler.c (__gcov_indirect_call_profiler_v2): Rename
	to ...
	(__gcov_indirect_call_profiler_v3): ... this.
	* libgcov.h (__gcov_indirect_call_profiler_v2): Likewise.
	(__gcov_indirect_call_profiler_v3): Likewise.
	* Makefile.in: Bump function name.

From-SVN: r268071

From-SVN: r267494