PR tree-optimization/79159
	* tree-ssa-loop-niter.c (get_cst_init_from_scev): New function.
	(record_nonwrapping_iv): Imporve boundary using above function if no
	value range information.

	gcc/testsuite
	PR tree-optimization/79159
	* g++.dg/tree-ssa/pr79159.C: New test.

From-SVN: r244868

2017-01-24  Pekka Jääskeläinen <pekka@parmance.com>
	    Martin Jambor  <mjambor@suse.cz>

	* Makefile.def (target_modules): Added libhsail-rt.
	(languages): Added language brig.
	* Makefile.in: Regenerated.
	* configure.ac (TOPLEVEL_CONFIGURE_ARGUMENTS): Added
	tgarget-libhsail-rt.  Make brig unsupported on untested architectures.
	* configure: Regenerated.

gcc/
	* brig-builtins.def: New file.
	* builtins.def (DEF_HSAIL_BUILTIN): New macro.
	(DEF_HSAIL_ATOMIC_BUILTIN): Likewise.
	(DEF_HSAIL_SAT_BUILTIN): Likewise.
	(DEF_HSAIL_INTR_BUILTIN): Likewise.
	(DEF_HSAIL_CVT_ZEROI_SAT_BUILTIN): Likewise.
	* builtin-types.def (BT_INT8): New.
	(BT_INT16): Likewise.
	(BT_UINT8): Likewise.
	(BT_UINT16): Likewise.
	(BT_FN_ULONG): Likewise.
	(BT_FN_UINT_INT): Likewise.
	(BT_FN_UINT_ULONG): Likewise.
	(BT_FN_UINT_LONG): Likewise.
	(BT_FN_UINT_PTR): Likewise.
	(BT_FN_ULONG_PTR): Likewise.
	(BT_FN_INT8_FLOAT): Likewise.
	(BT_FN_INT16_FLOAT): Likewise.
	(BT_FN_UINT32_FLOAT): Likewise.
	(BT_FN_UINT16_FLOAT): Likewise.
	(BT_FN_UINT8_FLOAT): Likewise.
	(BT_FN_UINT64_FLOAT): Likewise.
	(BT_FN_UINT16_UINT32): Likewise.
	(BT_FN_UINT32_UINT16): Likewise.
	(BT_FN_UINT16_UINT16_UINT16): Likewise.
	(BT_FN_INT_PTR_INT): Likewise.
	(BT_FN_UINT_PTR_UINT): Likewise.
	(BT_FN_LONG_PTR_LONG): Likewise.
	(BT_FN_ULONG_PTR_ULONG): Likewise.
	(BT_FN_VOID_UINT64_UINT64): Likewise.
	(BT_FN_UINT8_UINT8_UINT8): Likewise.
	(BT_FN_INT8_INT8_INT8): Likewise.
	(BT_FN_INT16_INT16_INT16): Likewise.
	(BT_FN_INT_INT_INT): Likewise.
	(BT_FN_UINT_FLOAT_UINT): Likewise.
	(BT_FN_FLOAT_UINT_UINT): Likewise.
	(BT_FN_ULONG_UINT_UINT): Likewise.
	(BT_FN_ULONG_UINT_PTR): Likewise.
	(BT_FN_ULONG_ULONG_ULONG): Likewise.
	(BT_FN_UINT_UINT_UINT): Likewise.
	(BT_FN_VOID_UINT_PTR): Likewise.
	(BT_FN_UINT_UINT_PTR: Likewise.
	(BT_FN_UINT32_UINT64_PTR): Likewise.
	(BT_FN_INT_INT_UINT_UINT): Likewise.
	(BT_FN_UINT_UINT_UINT_UINT): Likewise.
	(BT_FN_UINT_UINT_UINT_PTR): Likewise.
	(BT_FN_UINT_ULONG_ULONG_UINT): Likewise.
	(BT_FN_ULONG_ULONG_ULONG_ULONG): Likewise.
	(BT_FN_LONG_LONG_UINT_UINT): Likewise.
	(BT_FN_ULONG_ULONG_UINT_UINT): Likewise.
	(BT_FN_VOID_UINT32_UINT64_PTR): Likewise.
	(BT_FN_VOID_UINT32_UINT32_PTR): Likewise.
	(BT_FN_UINT_UINT_UINT_UINT_UINT): Likewise.
	(BT_FN_UINT_FLOAT_FLOAT_FLOAT_FLOAT): Likewise.
	(BT_FN_ULONG_ULONG_ULONG_UINT_UINT): Likewise.
	* doc/frontends.texi: List BRIG FE.
	* doc/install.texi (Testing): Add BRIG tesring requirements.
	* doc/invoke.texi (Overall Options): Mention BRIG.
	* doc/standards.texi (Standards): Doucment BRIG HSA version.

gcc/brig/

	* Make-lang.in: New file.
	* brig-builtins.h: Likewise.
	* brig-c.h: Likewise.
	* brig-lang.c: Likewise.
	* brigspec.c: Likewise.
	* config-lang.in: Likewise.
	* lang-specs.h: Likewise.
	* lang.opt: Likewise.
	* brigfrontend/brig-arg-block-handler.cc: Likewise.
	* brigfrontend/brig-atomic-inst-handler.cc: Likewise.
	* brigfrontend/brig-basic-inst-handler.cc: Likewise.
	* brigfrontend/brig-branch-inst-handler.cc: Likewise.
	* brigfrontend/brig-cmp-inst-handler.cc: Likewise.
	* brigfrontend/brig-code-entry-handler.cc: Likewise.
	* brigfrontend/brig-code-entry-handler.h: Likewise.
	* brigfrontend/brig-comment-handler.cc: Likewise.
	* brigfrontend/brig-control-handler.cc: Likewise.
	* brigfrontend/brig-copy-move-inst-handler.cc: Likewise.
	* brigfrontend/brig-cvt-inst-handler.cc: Likewise.
	* brigfrontend/brig-fbarrier-handler.cc: Likewise.
	* brigfrontend/brig-function-handler.cc: Likewise.
	* brigfrontend/brig-function.cc: Likewise.
	* brigfrontend/brig-function.h: Likewise.
	* brigfrontend/brig-inst-mod-handler.cc: Likewise.
	* brigfrontend/brig-label-handler.cc: Likewise.
	* brigfrontend/brig-lane-inst-handler.cc: Likewise.
	* brigfrontend/brig-machine.c: Likewise.
	* brigfrontend/brig-machine.h: Likewise.
	* brigfrontend/brig-mem-inst-handler.cc: Likewise.
	* brigfrontend/brig-module-handler.cc: Likewise.
	* brigfrontend/brig-queue-inst-handler.cc: Likewise.
	* brigfrontend/brig-seg-inst-handler.cc: Likewise.
	* brigfrontend/brig-signal-inst-handler.cc: Likewise.
	* brigfrontend/brig-to-generic.cc: Likewise.
	* brigfrontend/brig-to-generic.h: Likewise.
	* brigfrontend/brig-util.cc: Likewise.
	* brigfrontend/brig-util.h: Likewise.
	* brigfrontend/brig-variable-handler.cc: Likewise.
	* brigfrontend/phsa.h: Likewise.


gcc/testsuite/

	* lib/brig-dg.exp: New file.
	* lib/brig.exp: Likewise.
	* brig.dg/README: Likewise.
	* brig.dg/dg.exp: Likewise.
	* brig.dg/test/gimple/alloca.hsail: Likewise.
	* brig.dg/test/gimple/atomics.hsail: Likewise.
	* brig.dg/test/gimple/branches.hsail: Likewise.
	* brig.dg/test/gimple/fbarrier.hsail: Likewise.
	* brig.dg/test/gimple/function_calls.hsail: Likewise.
	* brig.dg/test/gimple/kernarg.hsail: Likewise.
	* brig.dg/test/gimple/mem.hsail: Likewise.
	* brig.dg/test/gimple/mulhi.hsail: Likewise.
	* brig.dg/test/gimple/packed.hsail: Likewise.
	* brig.dg/test/gimple/smoke_test.hsail: Likewise.
	* brig.dg/test/gimple/variables.hsail: Likewise.
	* brig.dg/test/gimple/vector.hsail: Likewise.

include/

	* hsa.h: Moved here from libgomp/plugin/hsa.h.

libgomp/

	* plugin/hsa.h: Moved to top level include.
	* plugin/plugin-hsa.c: Chanfgd include of hsa.h accordingly.

libhsail-rt/

	* Makefile.am: New file.
	* target-config.h.in: Likewise.
	* configure.ac: Likewise.
	* configure: Likewise.
	* config.h.in: Likewise.
	* aclocal.m4: Likewise.
	* README: Likewise.
	* Makefile.in: Likewise.
	* include/internal/fibers.h: Likewise.
	* include/internal/phsa-queue-interface.h: Likewise.
	* include/internal/phsa-rt.h: Likewise.
	* include/internal/workitems.h: Likewise.
	* rt/arithmetic.c: Likewise.
	* rt/atomics.c: Likewise.
	* rt/bitstring.c: Likewise.
	* rt/fbarrier.c: Likewise.
	* rt/fibers.c: Likewise.
	* rt/fp16.c: Likewise.
	* rt/misc.c: Likewise.
	* rt/multimedia.c: Likewise.
	* rt/queue.c: Likewise.
	* rt/sat_arithmetic.c: Likewise.
	* rt/segment.c: Likewise.
	* rt/workitems.c: Likewise.


Co-Authored-By: Martin Jambor <mjambor@suse.cz>

From-SVN: r244867

2017-01-24  Richard Biener  <rguenther@suse.de>

	PR translation/79208
	* ipa-devirt.c (odr_types_equivalent_p): Fix typo in diagnostic.

From-SVN: r244866

	PR libstdc++/79206
	* include/experimental/string_view (operator==): Check sizes first.
	* include/std/string_view (operator==): Likewise.

From-SVN: r244865

2017-01-24  Martin Jambor  <mjambor@suse.cz>

	PR bootstrap/79198
	* ipa-prop.c (ipa_free_all_node_params): Call summary destructor.
	* ipa-prop.c (ipa_node_params_t::insert): Initialize fields known_csts
	and known_contexts.

From-SVN: r244860

re PR middle-end/79123 (incorrect -Walloca-larger-than: alloca may be too large due to conversion from long int to long unsigned int)

	PR middle-end/79123
	* gimple-ssa-warn-alloca.c (alloca_call_type): Make sure
	casts from signed to unsigned really don't have a range.

From-SVN: r244859

	* gimple-ssa-sprintf.c (format_floating): Change MPFR_RNDx to
	GMP_RNDx for compatiblity.

From-SVN: r244858

2017-01-24  Martin Liska  <mliska@suse.cz>

	PR bootstrap/79132
	* tree-ssa-reassoc.c (rewrite_expr_tree_parallel): Insert assert
	that would prevent us to call alloca with -1 as argument.

From-SVN: r244857

	* g++.dg/asan/asan_test.C: Enable on all *-*-linux* targets that
	support asan, only on i?86/x86_64 require sse2_runtime.

From-SVN: r244856

	* dwarf2out.c (output_compilation_unit_header, output_file_names):
	Avoid -Wformat-security warning.

From-SVN: r244855

From-SVN: r244854

2017-01-23  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx2t99_addrcost_table): Improve
        cost table.

From-SVN: r244851

gcc/testsuite/ChangeLog:

2017-01-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/66669
	* gcc.dg/loop-8.c: Modify dg-skip-if directive to exclude this
	test on powerpc targets.

From-SVN: r244850

From-SVN: r244849

gcc/testsuite/ChangeLog:
	* gcc.dg/tree-ssa/builtin-sprintf.c: Add test cases.

From-SVN: r244848

PR middle-end/78703 - -fprintf-return-value floating point handling incorrect in locales with a mulltibyte decimal point
	* gimple-ssa-sprintf.c (warn_level): New global.
	(format_integer): Use it here and throughout the rest of the file.
	Use the same switch to compute sign as base.
	(maybe_warn): New function.
	(format_directive): Factor out warnings into maybe_warn.
	Add debugging output.  Use warn_level.
	(add_bytes): Use warn_level.
	(pass_sprintf_length::compute_format_length): Add debugging output.
	(try_substitute_return_value): Same.
	(pass_sprintf_length::handle_gimple_call): Set and use warn_level.

From-SVN: r244847

PR middle-end/78703 - -fprintf-return-value floating point handling incorrect in locales with a mulltibyte decimal point
	* gimple-ssa-sprintf.c (struct format_result): Remove constant member.
	(struct fmtresult, format_integer, format_floating): Adjust.
	(get_string_length, format_string,format_directive): Same.
	(pass_sprintf_length::compute_format_length): Same.
	(try_substitute_return_value): Simplify slightly.

From-SVN: r244846

PR middle-end/78703 - -fprintf-return-value floating point handling incorrect in locales with a mulltibyte decimal point
	* gimple-ssa-sprintf.c (pass_sprintf_length::gate): Adjust formatting.
	(fmtresult::operator+=): Outlined.
	(struct fmtresult): Add ctors.
	(struct conversion_spec): Rename...
	(struct directive): ...to this.  Add and remove data members.
	(directive::set_width, directive::set_precision): New functions.
	(format_percent): Use fmtresult ctor.
	(get_width_and_precision): Remove.
	(format_integer): Make naming changes.  Avoid computing width and
	precision.
	(format_floating): Same.  Adjust indentation.
	(format_character, format_none): New functions.
	(format_string): Moved character handling to format_character.
	(format_directive): Remove arguments, change return type.
	(parse_directive): New function.
	(pass_sprintf_length::compute_format_length): Move directive
	parsing to parse_directive.

From-SVN: r244845

	PR sanitizer/79168
	* merge.sh (change_comment_headers): Don't remove 2nd and 3rd line
	if the 3rd line doesn't contain 'The LLVM Compiler Infrastructure'
	text.
	* sanitizer_common/sanitizer_linux_mips64.S: Regenerated.
	* sanitizer_common/sanitizer_linux_x86_64.S: Likewise.
	* tsan/tsan_ppc_regs.h: Likewise.
	* tsan/tsan_rtl_aarch64.S: Likewise.
	* tsan/tsan_rtl_mips64.S: Likewise.
	* tsan/tsan_rtl_ppc64.S: Likewise.

From-SVN: r244844

From-SVN: r244843

	* testsuite/experimental/array/make_array.cc: Restore <functional>
	inclusion.

From-SVN: r244840

	* tree.h (assign_assembler_name_if_neeeded): Rename to ...
	(assign_assembler_name_if_needed): ... this.
	* tree.c (assign_assembler_name_if_neeeded): Rename to ...
	(assign_assembler_name_if_needed): ... this.
	(free_lang_data_in_cgraph): Adjust callers.
	* cgraphunit.c (cgraph_node::analyze): Likewise.
	* omp-expand.c (expand_omp_taskreg, expand_omp_target):
	Likewise.

From-SVN: r244839

2017-01-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79088
	PR tree-optimization/79188
	* tree-ssa-threadupdate.c (mark_threaded_blocks): Move code
	resetting loop bounds after last path deletion.  Reset loop
	bounds of the target loop, make code match the comments.
	* tree-ssa-threadbackwards.c (pass_early_thread_jumps::execute):
	Make sure loops need no fixups.

	* gcc.dg/torture/pr79088.c: New testcase.
	* gcc.dg/torture/pr79188.c: Likewise.

From-SVN: r244837

From-SVN: r244836

    
    Fix a bug in the generation of the hash value in reflect.FuncOf.
    
    The merge script missed a bunch of testdata files over the years.
    Copy them over.
    
    Reviewed-on: https://go-review.googlesource.com/35570

From-SVN: r244835

gcc/testsuite/ChangeLog:

2017-01-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* gcc.target/powerpc/bfp/scalar-insert-exp-3.c: New test.
	* gcc.target/powerpc/bfp/scalar-insert-exp-4.c: New test.
	* gcc.target/powerpc/bfp/scalar-insert-exp-5.c: New test.
	* gcc.target/powerpc/bfp/scalar-test-data-class-0.c: Adjust return
	type of test function to reflect change in built-in function's
	return type.
	* gcc.target/powerpc/bfp/scalar-test-data-class-1.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-data-class-2.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-data-class-3.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-data-class-4.c: Adjust return
	type and second argument type to reflect change in built-in
	function's type signature.
	* gcc.target/powerpc/bfp/scalar-test-data-class-5.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-data-class-6.c: Adjust return
	type of test function to reflect change in built-in function's
	return type.
	* gcc.target/powerpc/bfp/scalar-test-data-class-7.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-neg-0.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-neg-1.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-neg-2.c: Likewise.
	* gcc.target/powerpc/bfp/scalar-test-neg-3.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-exp-0.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-exp-1.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-exp-2.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-exp-3.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-sig-0.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-sig-1.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-sig-2.c: Likewise.
	* gcc.target/powerpc/bfp/vec-extract-sig-3.c: Likewise.
	* gcc.target/powerpc/bfp/vec-insert-exp-4.c: New test.
	* gcc.target/powerpc/bfp/vec-insert-exp-5.c: New test.
	* gcc.target/powerpc/bfp/vec-insert-exp-6.c: New test.
	* gcc.target/powerpc/bfp/vec-insert-exp-7.c: New test.
	* gcc.target/powerpc/bfp/vec-test-data-class-0.c: Adjust return
	type of test function to reflect change in built-in function's
	return type.
	* gcc.target/powerpc/bfp/vec-test-data-class-1.c: Likewise.
	* gcc.target/powerpc/bfp/vec-test-data-class-2.c: Likewise.
	* gcc.target/powerpc/bfp/vec-test-data-class-3.c: Likewise.
	* gcc.target/powerpc/bfp/vec-test-data-class-4.c: Likewise.
	* gcc.target/powerpc/bfp/vec-test-data-class-5.c: Likewise.
	* gcc.target/powerpc/bfp/vec-test-data-class-6.c: Adjust types of
	test function's result and second argument to reflect change in
	built-in function's type signature.
	* gcc.target/powerpc/bfp/vec-test-data-class-7.c: Likewise.

gcc/ChangeLog:

2017-01-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* config/rs6000/rs6000-builtin.def (VSIEDPF): Add scalar insert
	exponent support with double type for first argument.
	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Changed
	type returned by __builtin_vec_extract_sig,
	__builtin_vec_extract_sig_sp, and __builtin_vec_extract_sig_dp
	functions from "vector int" to "vector unsigned int" or from
	"vector long long int" to "vector unsigned long long int".
	Changed type returned by __builtin_vec_extract_exp,
	__builtin_vec_extract_exp_sp, and __builtin_vec_extract_exp_dp
	functions from "vector int" to "vector unsigned int" or from
	"vector long long int" to "vector unsigned long long int".
	Changed return type of __builtin_vec_test_data_class,
	__builtin_vec_test_data_class_sp, and
	__builtin_vec_test_data_class_dp from "vector int" to
	"vector bool int" or from "vector long long int" to "vector bool
	long long int" and changed second argument type from "unsigned
	int" to "int".  Added new overloaded function forms "vector float
	__builtin_vec_insert_exp (vector float, vector unsigned int)" and
	"vector float __builtin_vec_insert_exp_sp (vector float, vector
	unsigned int)" and "vector double __builtin_vec_insert_exp (vector
	double, vector unsigned long long int)" and "vector double
	__builtin_vec_insert_exp_dp (vector double, vector unsigned long
	long int)".  Changed return type of
	__builtin_scalar_test_data_class and
	__builtin_scalar_test_data_class_sp and
	__builtin_scalar_test_data_class_dp from "unsigned int" to "bool
	int" and changed second argument from "unsigned int" to "int".
	Changed type returned by __builtin_scalar_test_neg,
	__builtin_scalar_test_neg_sp, and __builtin_scalar_test_neg_dp
	from "int" to "bool int".  Added new overloaded function form
	"double __builtin_scalar_insert_exp (double, unsigned long long int)".
	* config/rs6000/vsx.md (xsiexpdpf): New insn for scalar insert
	exponent double-precision with floating point first argument.
	* doc/extend.texi (PowerPC AltiVec Built-in Functions): Adjust
	documentation of scalar_test_data_class, scalar_test_neg,
	scalar_extract_sig, scalar_extract_exp, scalar_insert_exp,
	vector_extract_exp, vec_extract_sig, vec_insert_exp, and
	vec_test_data_class built-in functions to reflect refinements in
	their type signatures.

From-SVN: r244834

	PR c++/71710 - template using directive of field
	* pt.c (tsubst_copy_and_build [COMPONENT_REF]): Move FIELD_DECL
	check earlier.

	PR C++/71710
	* g++.dg/template/pr71710.C: New.

From-SVN: r244833

	PR c++/71406 - ICE with scope-ref'd template id exprs
	PR c++/77508
	* typeck.c (finish_class_member_access_expr): Break up SCOPE_REF
	before breaking up TEMPLATE_ID_EXPR.

	PR c++/71406
	PR c++/77508
	* g++.dg/template/pr71406.C: New.

From-SVN: r244832

2017-01-23  Thomas Koenig  <tkoenig@netcologne.de>

	* arith.c (arith_power):  If simplifying integer power expression
	to zero, warn if -Winteger-division is given.

2017-01-23  Thomas Koenig  <tkoenig@netcologne.de>

	* gfortran.dg/integer_exponentiation_7.f90:  New test.

From-SVN: r244830

2017-01-23  Andreas Tobler  <andreast@gcc.gnu.org>

    * config/aarch64/aarch64.c (aarch64_elf_asm_constructor): Increase
    size of buf.
    (aarch64_elf_asm_destructor): Likewise.

From-SVN: r244828

	PR go/79037
    compiler, runtime: align gc data for m68k
    
    The current GC requires that the gc data be aligned to at least a 4
    byte boundary, because it uses the lower two bits of the address for
    flags (see LOOP and PRECISE in runtime/mgc0.c).  As the gc data is
    stored as a [...]uintptr, that is normally always true.  However, on
    m68k, that only guarantees 2 byte alignment.  Fix it by forcing the
    alignment.
    
    The parfor code used by the current GC requires that the parfor data
    be aligned to at least an 8 byte boundary.  The code in parfor.c
    verifies this.  This is normally true, as the data uses uint64_t
    values, but, again, this must be enforced explicitly on m68k.
    
    Fixes GCC PR 79037.
    
    Reviewed-on: https://go-review.googlesource.com/35478

From-SVN: r244824

    
    As usual I forgot to bump the library version when I updated the
    library to 1.8rc1.
    
    Reviewed-on: https://go-review.googlesource.com/35568

From-SVN: r244823

2017-01-23  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    libstdc++-v3/
    * testsuite/29_atomics/atomic/69301.cc: Require atomic builtins.

From-SVN: r244819

From-SVN: r244818

re PR rtl-optimization/71724 (ICE: Segmentation fault, deep recursion between combine_simplify_rtx and subst)

	PR rtl-optimization/71724
	* combine.c (if_then_else_cond): Look for situations where it is
	beneficial to undo the work of one of the recursive calls.

From-SVN: r244817

	PR rtl-optimization/78634
	* config/i386/i386.c (ix86_max_noce_ifcvt_seq_cost): New function.
	(TARGET_MAX_NOCE_IFCVT_SEQ_COST): Define.
	* ifcvt.c (noce_try_cmove): Add missing cost check.

testsuite/
	PR rtl-optimization/78634
	* gcc.target/i386/funcspec-11.c: Also pass -mtune=i686.

From-SVN: r244816

	PR tree-optimization/70754
	* tree-predcom.c (stmt_combining_refs): New parameter INSERT_BEFORE.
	(reassociate_to_the_same_stmt): New parameter INSERT_BEFORE.  Insert
	combined stmt before it if not NULL.
	(combine_chains): Process refs reversely and compute dominance point
	for root ref.

	gcc/testsuite
	PR tree-optimization/70754
	* gfortran.dg/pr70754.f90: New test.

From-SVN: r244815

	PR libstdc++/79195
	* include/experimental/array (__make_array_elem): New class template
	and partial specialization.
	(__is_reference_wrapper): Move into __make_array_elem specialization.
	(make_array): Use __make_array_elem to determine element type and move
	static assertion into specialization. Qualify std::forward call.
	(to_array): Add exception specifiation.
	* testsuite/experimental/array/make_array.cc: Test argument types
	without a common type.
	* testsuite/experimental/array/neg.cc: Adjust expected error message.

From-SVN: r244813

2017-01-23  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/79196
	* tree-ssa-strlen.c (fold_strstr_to_memcmp): Rename to ...
	(fold_strstr_to_strncmp): ... this.  Fold the pattern to strncmp
	instead of memcmp.
	(strlen_optimize_stmt): Call the renamed function.
2017-01-23  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/79196
	* gcc.dg/asan/pr79196.c: New test.
	* gcc.dg/strlenopt-30.c: Update scanned pattern.

From-SVN: r244812

	PR tree-optimization/78384
	* tree-ssa-loop-split.c (patch_loop_exit): Use correct edge.

testsuite/
	PR tree-optimization/78384
	* gcc.dg/pr78384.c: New test.

From-SVN: r244811