gcc/
	* config.gcc: Support "skylake-avx512".
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        PROCESSOR_SKYLAKE_AVX512.
        * config/i386/i386.c (m_SKYLAKE_AVX512): Define.
        (processor_target_table): Add "skylake-avx512".
        (PTA_SKYLAKE_AVX512): Define.
	(ix86_option_override_internal): Add "skylake_avx512".
        (fold_builtin_cpu): Handle "skylake_avx512", add F_AVX512VL
	F_AVX512BW, F_AVX512DQ, F_AVX512ER, F_AVX512PF, F_AVX512CD.
        * config/i386/i386.h (TARGET_SKYLAKE_AVX512): Define.
        (processor_type): Add PROCESSOR_SKYLAKE_AVX512.
	* doc/invoke.texi (skylake-avx512): New.

libgcc/
	* libgcc/config/i386/cpuinfo.c (enum processor_features): Add
	FEATURE_AVX512VL, FEATURE_AVX512BW, FEATURE_AVX512DQ,
	FEATURE_AVX512CD, FEATURE_AVX512ER, FEATURE_AVX512PF.
	(get_available_features): Habdle new features.

gcc/testsuite/
        * gcc.target/i386/funcspec-5.c: Test avx512vl, avx512bw,
	avx512dq, avx512cd, avx512er, avx512pf and skylake-avx512.
	* gcc.target/i386/builtin_target.c: Test  avx512vl, avx512bw,
	avx512dq, avx512cd, avx512er and avx512pf.

From-SVN: r228009

gcc/
	* gcc/config/i386/i386.md (define_insn "kunpckhi"): Fix
	operand in pattern.
	(define_insn "kunpcksi"): Ditto. 
	(define_insn "kunpckdi"): Ditto.

From-SVN: r228005

gcc/
	* gcc/config/i386/i386.md (define_split not/xor SWI1248x): Use
	iterator instead of fixed modes.

From-SVN: r228003

2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/aarch64-protos.h (aarch64_gen_atomic_ldop):
	Adjust declaration.
	* config/aarch64/aarch64.c (aarch64_emit_bic): New.
	(aarch64_gen_atomic_ldop): Adjust comment.  Add parameter
	out_result.  Update to support update-fetch operations.
	* config/aarch64/atomics.md (aarch64_atomic_exchange<mode>_lse):
	Adjust for change to aarch64_gen_atomic_ldop.
	(aarch64_atomic_<atomic_optab><mode>_lse): Likewise.
	(aarch64_atomic_fetch_<atomic_optab><mode>_lse): Likewise.
	(atomic_<atomic_optab>_fetch<mode>): Change to an expander.
	(aarch64_atomic_<atomic_optab>_fetch<mode>): New.
	(aarch64_atomic_<atomic_optab>_fetch<mode>_lse): New.

gcc/testsuite
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* gcc.target/aarch64/atomic-inst-ldadd.c: Add tests for
	update-fetch operations.
	* gcc.target/aarch64/atomic-inst-ldlogic.c: Likewise.

From-SVN: r228002

gcc/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/aarch64-protos.h
	(aarch64_atomic_ldop_supported_p): Declare.
	* config/aarch64/aarch64.c (aarch64_atomic_ldop_supported_p): New.
	(enum aarch64_atomic_load_op_code): New.
	(aarch64_emit_atomic_load_op): New.
	(aarch64_gen_atomic_ldop): Update to support load-operate
	patterns.
	* config/aarch64/atomics.md (atomic_<atomic_optab><mode>): Change
	to an expander.
	(aarch64_atomic_<atomic_optab><mode>): New.
	(aarch64_atomic_<atomic_optab><mode>_lse): New.
	(atomic_fetch_<atomic_optab><mode>): Change to an expander.
	(aarch64_atomic_fetch_<atomic_optab><mode>): New.
	(aarch64_atomic_fetch_<atomic_optab><mode>_lse): New.

gcc/testsuite/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* gcc.target/aarch64/atomic-inst-ldadd.c: New.
	* gcc.target/aarch64/atomic-inst-ldlogic.c: New.

From-SVN: r228001

2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/aarch64/atomics.md (UNSPECV_ATOMIC_LDOP): New.
	(UNSPECV_ATOMIC_LDOP_OR): New.
	(UNSPECV_ATOMIC_LDOP_BIC): New.
	(UNSPECV_ATOMIC_LDOP_XOR): New.
	(UNSPECV_ATOMIC_LDOP_PLUS): New.
	(ATOMIC_LDOP): New.
	(atomic_ldop): New.
	(aarch64_atomic_load<atomic_ldop><mode>): New.

From-SVN: r228000

2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/aarch64.md
	(<LOGICAL:optab>_one_cmpl_<SHIFT:optab><mode>3): Make a named
	pattern.

From-SVN: r227999

gcc/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* config/aarch64/aarch64-protos.h (aarch64_gen_atomic_ldop):
	Declare.
	* config/aarch64/aarch64.c (aarch64_emit_atomic_swap): New.
	(aarch64_gen_atomic_ldop): New.
	(aarch64_split_atomic_op): Fix whitespace and add a comment.
	* config/aarch64/atomics.md (UNSPECV_ATOMIC_SWP): New.
	(aarch64_compare_and_swap<mode>_lse): Fix some whitespace.
	(atomic_exchange<mode>): Replace with an expander.
	(aarch64_atomic_exchange<mode>): New.
	(aarch64_atomic_exchange<mode>_lse): New.
	(aarch64_atomic_<atomic_optab><mode>): Fix some whitespace.
	(aarch64_atomic_swp<mode>): New.

gcc/testsuite/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

	* gcc.target/aarch64/atomic-inst-ops.inc: (TEST_MODEL): New.
	(TEST_ONE): New.
        * gcc.target/aarch64/atomic-inst-swap.c: New.

From-SVN: r227998

In https://sourceware.org/ml/libc-alpha/2014-12/msg00300.html, we give a
"called from here" note without actually having a location, which looks
strange. I haven't been able to generate such a testcase. If this happens,
try to at least point to the current function being called. If that location is
also unknown, skip the extra note.

gcc/ChangeLog:

2015-09-22  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* tree-inline.c (expand_call_inline): Use inform for extra note.
	Do not give a note with UNKNOWN_LOCATION.
	Replace input_location with gimple_location (stmt).
	Use true/false instead of TRUE/FALSE.

gcc/testsuite/ChangeLog:

2015-09-22  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* gcc.target/i386/inline_error.c (int bar): Use dg-message for note.
	* gcc.target/i386/pr57756.c (static __inline int caller): Likewise.
	* gcc.target/i386/pr59789.c (f1): Likewise.
	* gcc.target/i386/intrinsics_5.c (__m128i foo): Likewise.
	* gcc.target/i386/intrinsics_6.c: Likewise.
	* gcc.dg/winline-5.c (int t): Likewise.
	* gcc.dg/winline-9.c (t): Likewise.
	* gcc.dg/always_inline2.c (q): Likewise.
	* gcc.dg/winline-2.c (inline int t): Likewise.
	* gcc.dg/winline-6.c: Likewise.
	* gcc.dg/winline-10.c (void g): Likewise.
	* gcc.dg/pr49243.c (void parse): Likewise.
	* gcc.dg/always_inline3.c (q2): Likewise.
	* gcc.dg/winline-3.c: Likewise.
	* gcc.dg/winline-7.c (inline void *t): Likewise.

From-SVN: r227997

2015-09-22  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/67666
	* tree-ssa-structalias.c (create_variable_info_for_1): Handle struct
	with single field non-conservative.

	* g++.dg/pr67666.C: New test.

From-SVN: r227996

2015-09-22  Chung-Lin Tang  <cltang@codesourcery.com>

	PR libgomp/67141
	* oacc-int.h (goacc_host_init): Add declaration.
	* oacc-host.c (goacc_host_init): Remove static and constructor attribute.
	* oacc-init.c (goacc_runtime_initialize): Call goacc_host_init() at end.

From-SVN: r227994

gcc/

	PR/67622
	Revert:
	2015-09-11  David S. Miller  <davem@davemloft.net>

		* config/sparc/constraints.md: Make "U" constraint a real register
		constraint.
		* config/sparc/sparc.c (TARGET_LRA_P): Define.
		(D_MODES, DF_MODES): Add missing cast.
		(TF_MODES, TF_MODES_NO_S): Include T_MODE.
		(OF_MODES, OF_MODES_NO_S): Include O_MODE.
		(sparc_register_move_cost): Decrease Niagara/UltrsSPARC memory
		cost to 8.
		* config/sparc/sparc.h (PROMOTE_MODE): Define.
		* config/sparc/sparc.md (*movsi_lo_sum, *movsi_high): Do not
		provide these insn when flag_pic.

	2015-09-17  David S. Miller  <davem@davemloft.net>

		* config/sparc/sparc-protos.h (sparc_secondary_memory_needed):
		Declare.
		* config/sparc/sparc.c (sparc_secondary_memory_needed): New
		function.
		* config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED): Use it.
		(HARD_REGNO_CALLER_SAVE_MODE): Define.
		* config/sparc/sparc.md (sethi_di_medlow, losum_di_medlow, seth44)
		(setm44, setl44, sethh, setlm, sethm, setlo, embmedany_sethi)
		(embmedany_losum, embmedany_brsum, embmedany_textuhi)
		(embmedany_texthi, embmedany_textulo, embmedany_textlo): Do not
		provide when flag_pic.

From-SVN: r227993

From-SVN: r227992

libgcc/
        * config/ft32/crti-hw.S: Use __PMSIZE to allow configurable
        memory layout. Deal correctly with BSS region larger than 32K.
        Handle a watchdog reset like a power-on reset. Clean up unused
        code.

From-SVN: r227986

2015-09-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	* resolve.c (nonscalar_typebound_assign): Fix typos in comment.

From-SVN: r227985

2015-09-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/67615
	* resolve.c (gfc_resolve_code): Check for scalar expression in 
	arithmetic-if.


2015-09-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/67615
	* gfortran.dg/pr67615.f90: new test.

From-SVN: r227981

	* config/h8300/h8300.md (andsi3_ashift_n_lower): Avoid undefined
	behavior.

	* gcc.target/h8300/andsi3_ashift_n_lower.c: New test.

From-SVN: r227978

/c-family
2015-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Complete the implementation of N4230, Nested namespace definition.
	* c-cppbuiltin.c: Add __cpp_namespace_attributes and
	__cpp_nested_namespace_definitions.

/cp
2015-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Complete the implementation of N4230, Nested namespace definition.
	* parser.c (cp_parser_namespace_definition): Support namespace
	attributes both before and after the namespace identifier.

/testsuite
2015-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Complete the implementation of N4230, Nested namespace definition.
	* g++.dg/cpp1y/feat-cxx11-neg.C: Add tests for C++17 namespace
	attributes and nested namespace definitions.
	* g++.dg/cpp1y/feat-cxx98-neg.C: Likewise.
	* g++.dg/cpp1z/feat-cxx1z.C: Likewise.
	* g++.dg/cpp1y/feat-cxx14-neg.C: New.
	* g++.dg/cpp1z/namespace-attribs.C: Likewise.
	* g++.dg/cpp1z/nested-namespace-def1.C: Add tests for attributes
	appearing before the namespace identifier.

From-SVN: r227977

linemap_position_for_loc_and_offset() tries to generate a location_t
encoding a column offset from the current location, for example, point
to a certain character inside a string. This is trivial to do when the
new location "fits within" the map of the original location. However,
it may happen that the (long) line corresponding to the original
location is encoded in several maps, thus the new location should
actually be encoded in a subsequent map from the original location.
This patch detects this case and adjusts the map correspondingly.

(This shows that the line-map representation is quite wasteful in this
case, because line-maps always start at column 0. That is, map[0]
highest location may encode up to line 8 column 80, then
map[1]->start_location starts encoding at line 8 column 0. Thus, there
are two location_t values that point to the same source location.)

libcpp/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/66415
	* line-map.c (linemap_position_for_loc_and_offset): Handle the
	case of long lines encoded in multiple maps.

gcc/testsuite/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/66415
	* gcc.dg/cpp/pr66415-1.c: Test column number.

From-SVN: r227975

From-SVN: r227974

2015-09-21  Richard Biener  <rguenther@suse.de>

	* passes.c (rest_of_decl_compilation): Do not call
	dwarf2out_early_global_decl for aliases.

	* g++.dg/ext/attr-alias-3.C: Add -g.

From-SVN: r227973

2015-09-21  Richard Biener  <rguenther@suse.de>

	PR debug/67664
	* dwarf2out.c (add_location_or_const_value_attribute): Remove
	attribute parameter.  Early exit if either DW_AT_const_value
	or DW_AT_location are present already.
	(gen_variable_die): Adjust caller.
	(dwarf2out_late_global_decl): Likewise.

	* g++.dg/debug/dwarf2/pr67764.C: New testcase.

From-SVN: r227972

testsuite/
	PR target/64345
	* gcc.target/sh/pr64345-1.c: Adjust expected insn counts for SH2A.

From-SVN: r227971

re PR target/67657 ([SH][5/6 Regression]: internal compiler error: in cselib_record_set, at cselib.c:2396 when compiling libjpeg-turbo)

gcc/
	PR target/67657
	* config/sh/sh.c (sh_remove_overlapping_post_inc,
	sh_peephole_emit_move_insn): Add new functions.
	* config/sh/sh-protos.h (sh_remove_overlapping_post_inc,
	sh_peephole_emit_move_insn): Declere them.
	* config/sh/sh.md: Use them in various peephole2 patterns.

From-SVN: r227969

re PR middle-end/67651 (Optimizer assumes nothing can reside at address 0 despite -fno-delete-null-pointer-checks)

2015-09-21  Richard Biener  <rguenther@suse.de>

	PR middle-end/67651
	* rtlanal.c (nonzero_address_p): SYMBOL_REFs may have zero
	address with -fno-delete-null-pointer-checks.

From-SVN: r227968

We xfail at emitting the correct location, but we still need to catch the
warning.

2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>

	* gcc.dg/pragma-diag-5.c: Catch excess warning.

From-SVN: r227967

	PR libstdc++/67647
	* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
	(basic_string::shrink_to_fit): Fix #endif placement.

From-SVN: r227966

	* config/rs6000/altivec.md (reduc_splus_<mode>): Rename to...
	(reduc_plus_scal_<mode>): ...this, add rs6000_expand_vector_extract.
	(reduc_uplus_v16qi): Remove.

	* config/rs6000/vector.md (VEC_reduc_name): Change "splus" to "plus".
	(reduc_<VEC_reduc_name>_v2df): Remove.
	(reduc_<VEC_reduc_name>_v4sf): Remove.
	(reduc_<VEC_reduc:VEC_reduc_name>_scal_<VEC_F:name>): New.

	* config/rs6000/vsx.md (vsx_reduc_<VEC_reduc_name>_v2df): Declare
	gen_ function by removing * prefix.
	(vsx_reduc_<VEC_reduc_name>_v4sf): Likewise.

From-SVN: r227965

In do_warn_aggressive_loop_optimizations, we convert to a tree just to print a
widest_int. Apart from overly complicated, this results in printing '3u'
instead of just '3'.

Unfortunately, adding a printf-like conversion specifier would require making
pretty-print.c link with wide-int.cc, which will include a lot of new
dependencies into several other programs (gcov-tool for example). It would be
possible to add the conversion specifier to every FE pretty-printer, but this
still would require updating c-format.c, which is far from trivial. A simpler
approach is to convert to a string rather than to a tree.

In addition, "iteration 3 invokes undefined behavior within this loop" seems to
me clearer than "iteration 3 invokes undefined behavior; containing loop".

gcc/testsuite/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR middle-end/60832
	* gcc.dg/pr53265.c: Update.

gcc/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR middle-end/60832
	* tree-ssa-loop-niter.c (do_warn_aggressive_loop_optimizations):
	Print i_bound without converting it to a tree.

From-SVN: r227964

[ARM] Replacing variable swaps that use a temporary variable with a call to std::swap in gcc/config/arm/arm.c

On behalf of <bilyan.borisov@arm.com>

2015-09-21  Bilyan Borisov  <bilyan.borisov@arm.com>

	* config/arm/arm.c (thumb_output_move_mem_multiple): Replaced
	operands[4] operands[5] swap with std::swap, removed tmp variable.
	(arm_evpc_neon_vzip): Replaced in0/in1 and
	out0/out1 swaps with std::swap, removed x variable.
	(arm_evpc_neon_vtrn): Replaced in0/int1 and
	out0/out1 swaos with std::swap, removed x variable.
	(arm_expand_vec_perm_const_1): Replaced
	d->op0/d->op1 swap with std::swap, removed x variable.
	(arm_evpc_neon_vuzp): Replaced in0/in1 and
	out0/out1 swaps with std::swap, removed x variable.

From-SVN: r227963

cygwin.h (STARTFILE_SPEC): Explicitly search sysroot/usr/lib/32api for additional win32 libraries...

2015-09-21  Jonathan Yong  <10walls@gmail.com>

        * config/i386/cygwin.h (STARTFILE_SPEC): Explicitly search
        sysroot/usr/lib/32api for additional win32 libraries,
        fixes failing Cygwin bootstrapping.

From-SVN: r227962

From-SVN: r227960

gcc/
	* doc/invoke.texi (SH Options): Undocument SH5/SH64 related options.

From-SVN: r227959

gcc/testsuite/
	PR target/59478
	* gcc.target/sh/pr59478.c: New.

From-SVN: r227958

gcc/
	PR target/67126
	* config/sh/sh.md (*reg_lsb_t): Emit bld insn on SH2A.
	(*mov_t_msb_neg): Rewrite negc pattern.

gcc/testsuite/
	PR target/67126
	* gcc.target/sh/pr51244-12.c: Adjust testcase.
	* gcc.target/sh/pr54236-2.c: Likewise.

From-SVN: r227957

From-SVN: r227956

re PR middle-end/67619 (ICE at -O1 and above on x86_64-linux-gnu in int_mode_for_mode, at stor-layout.c:425)

	PR middle-end/67619
	* lib/target-supports.exp (check_effective_target_builtin_eh_return):
	New procedure.

From-SVN: r227952

2015-09-20  Kai Tietz  <ktietz70@googlemail.com>

	* MAINTAINERS: Update email.

From-SVN: r227951

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

	* config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Cleanup
	immediate generation code.

From-SVN: r227950

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

	* config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Remove
	redundant immediate generation code.

From-SVN: r227949