This test fails to optimise away the PLUS reduction in the loop on arm targets when vectorisation
is not enabled due to absence of SIMD instructions.
From reading the logs and the PR I gather that the presence or absence of SIMD affects the passing of this test
on other targets as well, as evidenced by the long list of xfail targets.
This list looks quite unwieldy to me, but here is a patch adding non-NEON arm to that list. 

    * gcc.dg/tree-ssa/ssa-dom-cse-2.c: XFAIL on !arm_neon arm targets.

From-SVN: r257175

gcc/testsuite
        PR target/83828
	* gcc.target/i386/avx512bitalg-vpopcntb-1.c: Fix test.
	* gcc.target/i386/avx512bitalg-vpopcntw-1.c: Ditto.
	* gcc.target/i386/avx512bitalgvl-vpopcntb-1.c: Ditto.
	* gcc.target/i386/avx512bitalgvl-vpopcntw-1.c: Ditto.

From-SVN: r257173

	PR testsuite/81010
	* gcc.target/powerpc/pr56605.c: Update various dg- directives to
	better match other tests which require vsx.  Verify the zero
	extension is part of the test in the combiner dump.

From-SVN: r257172

    
    CL 84555 added support for the SuperH architecture, but didn't add the
    randomTrap definition to be used for the getrandom syscall on Linux.
    Add it now.
    
    Reviewed-on: https://go-review.googlesource.com/90535

From-SVN: r257171

From-SVN: r257170

	PR libgomp/84096
	* omp.h.in (omp_init_nest_lock_with_hint): Use omp_nest_lock_t
	instead of omp_lock_t.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r257167

2018-01-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81550
	* config/rs6000/rs6000.c (rs6000_setup_reg_addr_masks): If DFmode
	and SFmode can go in Altivec registers (-mcpu=power7 for DFmode,
	-mcpu=power8 for SFmode) don't set the PRE_INCDEC or PRE_MODIFY
	flags.  This restores the settings used before the 2017-07-24.
	Turning off pre increment/decrement/modify allows IVOPTS to
	optimize DF/SF loops where the index is an int.

From-SVN: r257166

    
    The compiler skips the escape analysis pass if it has seen any errors.
    The write barrier pass, especially the check-escapes portion, relies
    on escape analysis running.  So don't run this pass if there have been
    any errors, as it may cause further unreliable error reports.
    
    Reviewed-on: https://go-review.googlesource.com/90575

From-SVN: r257163

	* cvt.c (cp_convert_to_pointer): Always build a CONVERT_EXPR when
	!dofold.

From-SVN: r257161

	PR c++/83996
	* constexpr.c (cxx_fold_indirect_ref): Compute ((foo *)&fooarray)[1]
	=> fooarray[1] in offset_int.

	* g++.dg/ext/pr83996.C: New test.

From-SVN: r257160

	PR c/83966
	* c-format.c (check_function_format): Check current_function_decl.

	* gcc.dg/format/Wsuggest-attribute-1.c: New test.

From-SVN: r257159

gcc/ChangeLog:

2018-01-29  Richard Biener <rguenther@suse.de>
	    Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR bootstrap/80867
	* tree-vect-stmts.c (vectorizable_call): Don't call
	targetm.vectorize_builtin_md_vectorized_function if callee is
	NULL.


Co-Authored-By: Kelvin Nilsen <kelvin@gcc.gnu.org>

From-SVN: r257158

gcc/ChangeLog:

2018-01-22 Carl Love <cel@us.ibm.com>

	* doc/extend.tex: Fix typo in second arg in
	__builtin_bcdadd_{lt|eq|gt|ov}, and __builtin_bcdsub_{lt|eq|gt|ov}.

From-SVN: r257156

	* cvt.c (ocp_convert): Call mark_rvalue_use.

From-SVN: r257155

re PR libgomp/84086 ([8 Regresssion] segfault in instantiate_scev_r for libgomp.fortran/examples-4/simd-2.f90 -O1)

2018-01-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/84086
	* tree-ssanames.c: Include cfgloop.h and tree-scalar-evolution.h.
	(flush_ssaname_freelist): When SSA names were released reset
	the SCEV hash table.

From-SVN: r257152

From-SVN: r257147

	PR libstdc++/83833
	* testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
	Add -ffloat-store to options for m68k and ia32.

From-SVN: r257146

From-SVN: r257143

	* doc/xml/faq.xml: Update copyright years.
	* doc/html/*: Regenerate.

From-SVN: r257142

	PR libstdc++/83658
	* include/std/any (any::__do_emplace): Only set _M_manager after
	constructing the contained object.
	* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
	* testsuite/20_util/any/modifiers/83658.cc: New test.

From-SVN: r257141

2018-01-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/84057
	* tree-ssa-loop-ivcanon.c (unloop_loops): Deal with already
	removed paths when removing edges.

	* gcc.dg/graphite/pr84057.c: New testcase.

From-SVN: r257139

re PR fortran/84073 (In -fc-prototypes fixed (nonzero) length strings are mapped to plain char in prototype.)

2017-01-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84073
	* resolve.c (resolve_component): Ensure BIND(C) character
	components have length one.
	(resolve_symbol): Likewise for variables.

2017-01-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/84073
	* gfortran.dg/bind_c_usage_31.f90: New test.

From-SVN: r257138

From-SVN: r257134

2018-01-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/83924
	* g++.dg/warn/Wduplicated-branches5.C: New.

From-SVN: r257131

From-SVN: r257130

    
    Reviewed-on: https://go-review.googlesource.com/90295

From-SVN: r257127

    
    Reviewed-on: https://go-review.googlesource.com/90295

From-SVN: r257126

Fix a typo in doc/invoke.texi.

	* doc/invoke.texi: Replace -mfunction-return==@var{choice} with
	-mfunction-return=@var{choice}.

From-SVN: r257124

	PR fortran/84065
	* decl.c (add_init_expr_to_sym): Ignore initializers for too large
	lengths.

From-SVN: r257121

2018-01-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR diagnostic/84034
        * diagnostic-show-locus.c (get_line_width_without_trailing_whitespace):
        Handle CR like TAB.
        (layout::print_source_line): Likewise.
        (test_get_line_width_without_trailing_whitespace): Add test cases.

From-SVN: r257120

	PR middle-end/84040
	* sched-deps.c (sched_macro_fuse_insns): Return immediately for
	debug insns.

From-SVN: r257119

	* c-cppbuiltin.c (c_cpp_builtins): Use ggc_strdup for the fp_suffix
	argument.
	(LAZY_HEX_FP_VALUES_CNT): Define.
	(lazy_hex_fp_values): Allow up to LAZY_HEX_FP_VALUES_CNT lazy hex fp
	values rather than just 12.
	(builtin_define_with_hex_fp_value): Likewise.

	* include/cpplib.h (enum cpp_builtin_type): Change BT_LAST_USER from
	BT_FIRST_USER + 31 to BT_FIRST_USER + 63.

From-SVN: r257118

From-SVN: r257117

	gcc/
	* config/riscv/riscv.h (MAX_FIXED_MODE_SIZE): New.

From-SVN: r257114

    
    Call message_name when printing a variable for an escape analysis
    message.  This implies changing the AST dumps, which is fine.
    
    Reviewed-on: https://go-review.googlesource.com/90296

From-SVN: r257113

gcc/po:
	* gcc.pot: Regenerate.

libcpp/po:
	* cpplib.pot: Regenerate.

From-SVN: r257111

	gcc/
	* config/riscv/elf.h (LIB_SPEC): Don't include -lgloss when nosys.specs
	specified.

From-SVN: r257109

This patch merges the safe-indirect-jump-1.c and -8.c testcases,
since they do the same thing.  On the 64-bit and AIX ABIs the indirect
call is not a sibcall, since there is code generated after the call
(the restore of r2).  On the 32-bit non-AIX ABIs it is a sibcall.


	* gcc.target/powerpc/safe-indirect-jump-1.c: Build on all targets.
	Make expected output depend on whether we expect sibcalls or not.
	* gcc.target/powerpc/safe-indirect-jump-8.c: Delete (merged into
	safe-indirect-jump-1.c).

From-SVN: r257108

	* method.c (walk_field_subobs): Variant members only affect
	deletedness.
	(maybe_explain_implicit_delete): Pass &deleted_p for diagnostic.

From-SVN: r257107

Co-Authored-By: Alessandro Fanfarillo <fanfarillo.gcc@gmail.com>
Co-Authored-By: Soren Rasmussen <s.c.rasmussen@gmail.com>

From-SVN: r257105