* tree-loop-distribution.c: Add general explanantion on the pass.
	(generate_loops_for_partition): Mark distributed loop.
	(pg_add_dependence_edges): New parameter.  Handle alias data
	dependence specially and record it in the parameter if asked.
	(struct pg_vdata, pg_edata, pg_edge_callback_data): New structs.
	(init_partition_graph_vertices, add_partition_graph_edge): New.
	(pg_skip_alias_edge, free_partition_graph_edata_cb): New.
	(free_partition_graph_vdata, build_partition_graph): New.
	(sort_partitions_by_post_order, merge_dep_scc_partitions): New.
	(pg_collect_alias_ddrs, break_alias_scc_partitions): New.
	(data_ref_segment_size, latch_dominated_by_data_ref): New.
	(compute_alias_check_pairs, version_loop_by_alias_check): New.
	(version_for_distribution_p, finalize_partitions): New.
	(distribute_loop): Handle alias data dependence specially.  Factor
	out loop fusion code as functions and call these functions.

	gcc/testsuite
	* gcc.dg/tree-ssa/ldist-4.c: Adjust test string.
	* gcc.dg/tree-ssa/ldist-12.c: Ditto.
	* gcc.dg/tree-ssa/ldist-13.c: Ditto.
	* gcc.dg/tree-ssa/ldist-14.c: Ditto.

From-SVN: r249994

	* tree-loop-distribution.c (classify_partition): New parameter and
	better handle reduction statement.
	(rdg_build_partitions): Revise comment.
	(distribute_loop): Compute statements in all partitions and pass it
	to classify_partition.

	gcc/testsuite
	* gcc.dg/tree-ssa/ldist-26.c: New test.

From-SVN: r249993

	* tree-loop-distribution.c (enum partition_type): New.
	(struct partition): New field type.
	(partition_merge_into): Add parameter.  Update partition type.
	(data_dep_in_cycle_p, update_type_for_merge): New functions.
	(build_rdg_partition_for_vertex): Compute partition type.
	(rdg_build_partitions): Dump partition type.
	(distribute_loop): Update calls to partition_merge_into.

From-SVN: r249992

	* tree-loop-distribution.c (struct ddr_hasher): New.
	(ddr_hasher::hash, ::equal, get_data_dependence): New function.
	(ddrs_table): New.
	(classify_partition): Call get_data_dependence.
	(pg_add_dependence_edges): Ditto.
	(distribute_loop): Release data dependence hash table.

From-SVN: r249991

	* tree-loop-distribution.c (ref_base_address): Delete.
	(similar_memory_accesses): Rename ...
	(share_memory_accesses): ... to this.  Check if partitions access
	the same memory reference.
	(distribute_loop): Call share_memory_accesses.

	gcc/testsuite
	* gcc.dg/tree-ssa/ldist-6.c: XFAIL.

From-SVN: r249990

	* tree-loop-distribution.c (struct partition): New field recording
	its data reference.
	(partition_alloc, partition_free): Init and release data refs.
	(partition_merge_into): Merge data refs.
	(build_rdg_partition_for_vertex): Collect data refs for partition.
	(pg_add_dependence_edges): Change parameters from vector to bitmap.
	Update uses.
	(distribute_loop): Remve data refs from vertice data of partition
	graph.

From-SVN: r249989

	* tree-loop-distribution.c (params.h): Include header file.
	(MAX_DATAREFS_NUM, DR_INDEX): New macro.
	(datarefs_vec): New global var.
	(create_rdg_vertices): Use datarefs_vec directly.
	(free_rdg): Don't free data references.
	(build_rdg): Update use.  Don't free data references.
	(distribute_loop): Compute global variable for data references.
	Bail out if there are too many data references.

From-SVN: r249988

	* tree-loop-distribution.c (loop_nest): New global var.
	(build_rdg): Use loop directly, rather than loop nest.
	(pg_add_dependence_edges): Remove loop nest parameter.  Use global
	variable directly.
	(distribute_loop): Compute global variable loop nest.  Update use.

From-SVN: r249987

	* tree-loop-distribution.c (enum fuse_type, fuse_message): New.
	(partition_merge_into): New parameter.  Dump reason for fusion.
	(distribute_loop): Update use of partition_merge_into.

From-SVN: r249986

	* tree-loop-distribution.c (bb_top_order_index): New.
	(bb_top_order_index_size, bb_top_order_cmp): New.
	(stmts_from_loop): Use topological order.
	(pass_loop_distribution::execute): Compute and release topological
	order for basic blocks.

From-SVN: r249985

	* tree-loop-distribution.c (pass_loop_distribution::execute): Skip
	if no loops.

From-SVN: r249984

	* cfgloop.h (struct loop): Add comment.  New field orig_loop_num.
	* cfgloopmanip.c (lv_adjust_loop_entry_edge): Comment change.
	* internal-fn.c (expand_LOOP_DIST_ALIAS): New function.
	* internal-fn.def (LOOP_DIST_ALIAS): New.
	* tree-vectorizer.c (fold_loop_vectorized_call): Rename to ...
	(fold_loop_internal_call): ... this.
	(vect_loop_dist_alias_call): New function.
	(set_uid_loop_bbs): Call fold_loop_internal_call.
	(vectorize_loops): Fold IFN_LOOP_VECTORIZED and IFN_LOOP_DIST_ALIAS
	internal calls.

From-SVN: r249983

From-SVN: r249982

2017-07-04  Uros Bizjak  <ubizjak@gmail.com>

	PR target/81300
	* config/i386/i386.md (setcc + movzbl/and to xor + setcc peepholes):
	Require dead FLAGS_REG at the beginning of a peephole.

testsuite/ChangeLog:

	PR target/81300
	* gcc.target/i386/pr81300.c: New test.

From-SVN: r249977

	PR target/81294
	* config/i386/adxintrin.h (_subborrow_u32): Swap _X and _Y
	arguments in the call to __builtin_ia32_sbb_u32.
	(_subborrow_u64): Swap _X and _Y arguments in the call to
	__builtin_ia32_sbb_u64.

testsuite/ChangeLog:

	PR target/81294
	* gcc.target/i386/adx-addcarryx32-2.c (adx_test): Swap
	x and y arguments in the call to _subborrow_u32.
	* gcc.target/i386/adx-addcarryx64-2.c (adx_test): Swap
	x and y arguments in the call to _subborrow_u64.
	* gcc.target/i386/pr81294-1.c: New test.
	* gcc.target/i386/pr81294-2.c: Ditto.

From-SVN: r249976

	PR debug/81278
	* tree-vrp.c (compare_assert_loc): Turn into a function template
	with stable template parameter.  Only test if a->e is NULL,
	!a->e == !b->e has been verified already.  Use e == NULL or
	e != NULL instead of e or ! e tests.  If stable is true, don't use
	iterative_hash_expr, on the other side allow a or b or both NULL
	and sort the NULLs last.
	(process_assert_insertions): Sort using compare_assert_loc<false>
	instead of compare_assert_loc, later sort using
	compare_assert_loc<true> before calling process_assert_insertions_for
	in a loop.  Use break instead of continue once seen NULL pointer.

From-SVN: r249975

2017-07-04  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config/arm/driver-arm.c (arm_cpu_table): Add entry for ARM
    Cortex-R7 and Cortex-R8 processors.

From-SVN: r249974

	* ipa-utils.c (ipa_merge_profiles): Fix merging when dst is
	uninitialized while src is not.

From-SVN: r249973

While doing some unrelated work the gcc.target/aarch64/simd/vminmaxnm_1.c testcase started failing for me.
Upon investigation it turns out that it breaks the C strict aliasing rules in the CHECK macro by casting
a pointer to an incompatible type and dereferencing it. GCC even warns about it if compiled with -Wstrict-aliasing.

This patch fixes the testcase by making it use memcmp to compare the vector elements.
This avoids the undefined behaviour.

The testcase still passes on trunk.

    * gcc.target/aarch64/simd/vminmaxnm_1.c: Fix strict aliasing issues.

From-SVN: r249972

When I originally started work on the new options framework for ARM
I'd worked on the assumption that AWK might not be available on every
build machine (only on developer's machines).  However, looking again
I notice that all the options framework relies on it being present for
every build.  This means that some of the generated files that come
from running parsecpu.awk do not need to be kept under revision
control.

Unfortunately, it's not _all_ generated files.  The build
infrastructure assumes that all .md fragments are in the source tree
and similarly that all .opt fragments are there as well.

Still, eliminating the very big .h files is a step forward as they are
very regular in structure and diff/patch/merge tools can sometimes
make mistakes when resolving conflicts.

So this patch removes the generated .h files from the source tree and
tweaks the make rules accordingly.  I've also changed the build rules
to use the stamp technique to eliminate some false dependencies in a
rebuild.

Top-level:

* contrib/gcc_update (files_and_dependencies): Remove stamp rules for
arm-specific auto-generated header files.

gcc:
* common/config/arm/arm-common.c: Adjust include path for
arm-cpu-cdata.h
* t-arm (TM_H): Adjust path for arm-cpu.h.
(arm-cpu.h): Create in build directory.  Adjust dependency rules.
(arm-cpu-data.h): Likewise.
(arm-cpu-cdata.h): Likewise.
* config/arm/arm-cpu.h: Delete.
* config/arm/arm-cpu-cdata.h: Delete.
* config/arm/arm-cpu-data.h: Delete.

From-SVN: r249971

Much like my AArch64 patch a few weeks ago, this patch adds support
for the ARM Cortex-A75 and Cortex-A55 processors through the
-mcpu/-mtune values cortex-a55 and cortex-a75, and an
ARM DynamIQ big.LITTLE configuration of these two processors through
the -mcpu/-mtune value cortex-a75.cortex-a55

Both Cortex-A55 and Cortex-A75 support ARMv8-A with the ARM8.1-A and
ARMv8.2-A extensions. This is reflected in the patch, -mcpu=cortex-a75 is
treated as equivalent to passing -mtune=cortex-a75 -march=armv8.2-a+fp16

gcc/

2017-07-04  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/arm/arm-cpus.in (cortex-a55): New.
	(cortex-a75): Likewise.
	(cortex-a75.cortex-a55): Likewise.
	* config/arm/driver-arm.c (arm_cpu_table): Add cortex-a55 and
	cortex-a75.
	* doc/invoke.texi (-mcpu): Document cortex-a55 and cortex-a75.

	* config/arm/arm-cpu-cdata.h: Regenerate.
	* config/arm/arm-cpu-data.h: Regenerate.
	* config/arm/arm-cpu.h: Regenerate.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/arm-tune.md: Regenerate.

From-SVN: r249970

From-SVN: r249967

	* bb-reorder.c (better_edge_p): Fix handling of uninitialized
	probability.

From-SVN: r249966

This patch fixes relative pathnames in gcc/ChangeLog for r247584.

From-SVN: r249964

	PR c/81231
	* c-common.c (sync_resolve_size): Give error for pointers to incomplete
	types.

	* gcc.dg/atomic-pr81231.c: New test.

From-SVN: r249963

	* brigfrontend/brig-function.cc: Include profile-count.h.
	* brigfrontend/brig-to-generic.cc: Likewise.

From-SVN: r249962

r249880 installed the result of a strlen in a strinfo if the strinfo
wasn't previously a full string.  But as Jakub says in the PR comments,
we can't just do that in isolation, because there are no vdefs on the
call that would invalidate any related strinfos.

This patch updates the related strinfos if the adjustment is simple and
invalidates them otherwise.  As elsewhere, we treat adjustments of the
form strlen +/- INTEGER_CST as simple but anything else as too complex.

2017-07-04  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	PR tree-optimization/81292
	* tree-ssa-strlen.c (handle_builtin_strlen): When setting
	full_string_p, also call adjust_related_strinfos if the adjustment
	is simple, otherwise invalidate related strinfos.

gcc/testsuite/
	PR tree-optimization/81292
	* gcc.dg/pr81292-1.c: New test.
	* gcc.dg/pr81292-2.c: Likewise.

From-SVN: r249961

2017-07-04  Martin Liska  <mliska@suse.cz>

	PR sanitizer/81040
	* sanopt.c (sanitize_rewrite_addressable_params): Mark the
	newly created variable as DECL_IGNORED_P.
2017-07-04  Martin Liska  <mliska@suse.cz>

	PR sanitizer/81040
	* g++.dg/asan/function-argument-1.C: Run the test-case w/o
	use-after-scope sanitization.

From-SVN: r249960

2017-07-04  Martin Liska  <mliska@suse.cz>

	PR ipa/81293
	* ipa-inline.c (inline_small_functions):
	Use xstrdup_for_dump.

From-SVN: r249959

2017-07-04  Tom de Vries  <tom@codesourcery.com>

	* graph.c (draw_cfg_edges): Save and restore EDGE_DFS_BACK.

From-SVN: r249954

From-SVN: r249953

	* g++.dg/asan/function-argument-3.C: Add -Wno-psabi to additional
	options.

From-SVN: r249952

re PR target/81175 (EXC_BAD_ACCESS in ::slpeel_duplicate_current_defs_from_edges(edge, edge, edge, edge) at is-a.h:192)

	PR target/81175
	* gcc.target/i386/pr69255-2.c (foo): Use the return value of the
	gather.

From-SVN: r249951

2017-07-04  Olivier Hainque  <hainque@adacore.com>

	* config/vxworks.h (PTRDIFF_TYPE, SIZE_TYPE): Restore
	unconditional basic definitions.
	(VXWORKS_LIBS_RTP): Likewise, prefixed by VXWORKS_SYSCALL_LIBS_RTP,
	empty by default.
	* config/i386/vxworks.h (PTRDIFF_TYPE, SIZE_TYPE): Redefine,
	accounting for 64bit ABIs using cpu specific macros available for
	this purpose.
	(VXWORKS_SYSCALL_LIBS_RTP): Likewise.

From-SVN: r249950

2017-07-04  Martin Liska  <mliska@suse.cz>

	PR ipa/81214
	* g++.dg/ext/mvc2.C: Add dg-require ifunc.
	* g++.dg/ext/mvc3.C: Likewise.
	* gcc.target/i386/mvc2.c: Likewise.
	* gcc.target/i386/mvc3.c: Likewise.

From-SVN: r249949

parser.c (cp_parser_decomposition_declaration): Replace decomposition declaration with structured binding in diagnostics.

	* parser.c (cp_parser_decomposition_declaration): Replace
	decomposition declaration with structured binding in diagnostics.
	* decl.c (cp_finish_decomp): Likewise.
	(grokdeclarator): Likewise.

	* g++.dg/cpp1z/decomp1.C: Expect structured binding instead of
	decomposition declaration in diagnostics.
	* g++.dg/cpp1z/decomp2.C: Likewise.
	* g++.dg/cpp1z/decomp3.C: Likewise.
	* g++.dg/cpp1z/decomp4.C: Likewise.
	* g++.dg/cpp1z/decomp5.C: Likewise.
	* g++.dg/cpp1z/decomp6.C: Likewise.
	* g++.dg/cpp1z/decomp7.C: Likewise.
	* g++.dg/cpp1z/decomp8.C: Likewise.
	* g++.dg/cpp1z/decomp13.C: Likewise.
	* g++.dg/cpp1z/decomp14.C: Likewise.
	* g++.dg/cpp1z/decomp18.C: Likewise.
	* g++.dg/cpp1z/decomp19.C: Likewise.
	* g++.dg/cpp1z/decomp22.C: Likewise.
	* g++.dg/cpp1z/decomp23.C: Likewise.
	* g++.dg/cpp1z/decomp24.C: Likewise.
	* g++.dg/cpp1z/decomp25.C: Likewise.
	* g++.dg/cpp1z/decomp26.C: Likewise.
	* g++.dg/cpp1z/decomp28.C: Likewise.

From-SVN: r249948

re PR c++/81258 (ICE on C++1z code with invalid decomposition declaration: in cp_finish_decl, at cp/decl.c:6760)

	PR c++/81258
	* parser.c (cp_parser_decomposition_declaration): Diagnose invalid
	forms of structured binding initializers.

	* g++.dg/cpp1z/decomp21.C (foo): Adjust expected diagnostics.
	* g++.dg/cpp1z/decomp30.C: New test.

From-SVN: r249947

From-SVN: r249943

From-SVN: r249942

2017-06-27  Olivier Hainque  <hainque@adacore.com>

	* config/t-vxworks7: New file.

New file mistakenly omitted from previous commit referencing it.

From-SVN: r249938