* constexpr.c (lookup_placeholder): Split out...
	(cxx_eval_constant_expression): ...from here.

From-SVN: r245986

From-SVN: r245985

Verified by building an nds32be-elf cross-compiler.

gcc/ChangeLog
	* config/nds32/nds32.c (nds32_option_override):

From-SVN: r245982

	PR c/79940
	* gimplify.c (gimplify_omp_for): Replace index var in outer
	taskloop statement with an artificial variable and add
	OMP_CLAUSE_PRIVATE clause for it.

	* testsuite/libgomp.c/pr79940.c: New test.

From-SVN: r245980

ChangeLog:

       PR demangler/70909
       PR demangler/67264
       * include/demangle.h: Add d_printing to struct demangle_component
       and pass struct demangle_component as non const.

libiberty/ChangeLog:

       PR demangler/70909
       PR demangler/67264
       * cp-demangle.c: Fix endless recursion. Pass
       struct demangle_component as non const.
       (d_make_empty): Initialize variable.
       (d_print_comp_inner): Limit recursion.
       (d_print_comp): Decrement variable.
       * cp-demint.c (cplus_demangle_fill_component): Initialize
       variable.
       (cplus_demangle_fill_builtin_type): Likewise.
       (cplus_demangle_fill_operator): Likewise.
       * testsuite/demangle-expected: Add tests.

From-SVN: r245978

       * btest.c (test5): Replace #ifdef guard with 'unused' attribute
       to fix compile warning when BACKTRACE_SUPPORTED isn't defined.

From-SVN: r245977

2017-03-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79955
	* tree-ssa-uninit.c (warn_uninitialized_vars): Do not warn
	for accesses that are completely outside of the variable.

	* gcc.dg/uninit-24.c: New testcase.

From-SVN: r245976

From-SVN: r245975

2017-03-08  Andrew Haley  <aph@redhat.com>

	PR tree-optimization/79943
	* tree-ssa-loop-split.c (compute_new_first_bound): When
	calculating the new upper bound, (END-BEG) should be added, not
	subtracted.

From-SVN: r245974

re PR ada/79903 (When building GCC-cross compiler for  RTEMS/SPARC with Ada support, the build fails because of missing #ifdef)

	PR ada/79903
	* socket.c (__gnat_gethostbyaddr): Add missing test for __rtems__.

From-SVN: r245972

	PR ada/79945
	* system-linux-ppc.ads (Default_Bit_Order): Use Standard's setting.

	* system-linux-arm.ads (Default_Bit_Order): Likewise.
	* system-linux-mips.ads (Default_Bit_Order): Likewise.
	* system-linux-armeb.ads: Delete.
	* system-linux-mipsel.ads: Likewise.
	* gcc-interface/Makefile.in (MIPS/Linux): Adjust.
	(ARM/Linux): Likewise.

From-SVN: r245970

	* config/avr/avr.md (setmemhi): Make sure match_dup
	operand number comes before match_scratch.

From-SVN: r245969

2017-03-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79920
	* tree-vect-slp.c (vect_create_mask_and_perm): Remove and inline
	with ncopies == 1 to ...
	(vect_transform_slp_perm_load): ... here.  Properly compute
	all element loads by iterating VF times over the group.  Do
	not handle ncopies (computed in a broken way) in
	vect_create_mask_and_perm.

	* gcc.dg/vect/pr79920.c: New testcase.

From-SVN: r245968

	PR sanitizer/79904
	* internal-fn.c (expand_vector_ubsan_overflow): If arg0 or arg1
	is a uniform vector, use uniform_vector_p return value instead of
	building ARRAY_REF on folded VIEW_CONVERT_EXPR to array type.

	* gcc.dg/ubsan/pr79904.c: New test.

From-SVN: r245967

From-SVN: r245966

	PR c/79834
c/
	* c-parser.c (c_parser_pragma): Use error_at instead of c_parser_error
	for "may only be used in compound statements" diagnostics, change it
	such that the same translatable string is used for all pragmas.  For
	PRAGMA_OACC_WAIT use "acc wait" rather than "acc enter data" in the
	diagnostics.
	(c_parser_omp_cancellation_point, c_parser_omp_target_update,
	c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Change
	"may only be used in compound statements" diagnostics, such that the
	same translatable string is used for all pragmas.
cp/
	* parser.c (cp_parser_omp_cancellation_point,
	cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data,
	cp_parser_omp_target_update): Change "may only be used in compound
	statements" diagnostics, such that the same translatable string is
	used for all pragmas.
	(cp_parser_pragma): Likewise.  Use error_at instead of
	cp_parser_error for that diagnostics.
testsuite/
	* c-c++-common/goacc/pragma_context.c (f2): Adjust expected
	diagnostics.

From-SVN: r245959

	PR middle-end/79809
	* gimple-ssa-warn-alloca.c (pass_walloca::gate): Use HOST_WIDE_INT.
	(alloca_call_type): Likewise.

	* g++.dg/Walloca1.C: New test.

From-SVN: r245955

2017-03-07  Martin Liska  <mliska@suse.cz>

	* gcov.c (process_args): Put comment to correct location.

From-SVN: r245952

2017-03-07  Martin Liska  <mliska@suse.cz>

	PR middle-end/68270
	* tree-chkp.c (chkp_may_narrow_to_field): Add new argument ref.
	Use array_at_struct_end_p instead of DECL_CHAIN (field).
	(chkp_narrow_bounds_for_field): Likewise.
	(chkp_parse_array_and_component_ref): Pass one more argument to
	call.
2017-03-07  Martin Liska  <mliska@suse.cz>

	PR middle-end/68270
	* g++.dg/pr68270.C: New test.

From-SVN: r245951

2017-03-07  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop-manip.c (slpeel_add_loop_guard): Preserve
	preheaders.

From-SVN: r245950

As Shmuel reported in <https://gcc.gnu.org/ml/gcc-help/2017-03/msg00009.html>,
on x86-64 small structures in automatic storage are aligned to 16 bytes.
This seems to be because of a mix-up between bits and bytes in the i386
target code.


	* config/i386/i386.c (ix86_local_alignment): Align most aggregates
	of 16 bytes and more to 16 bytes, not those of 16 bits and more.

From-SVN: r245949

	PR c/79855
	* params.def (PARAM_STORE_MERGING_ALLOW_UNALIGNED): Add full stop
	to end of description.
	(PARAM_MAX_STORES_TO_MERGE): Likewise.

From-SVN: r245948

	PR rtl-optimization/79901
	* config/i386/sse.md (*avx512bw_<code><mode>3<mask_name>): Renamed to
	...
	(*avx512f_<code><mode>3<mask_name>): ... this.
	(<code><mode>3 with maxmin code iterator): Use VI8_AVX2_AVX512F
	iterator instead of VI8_AVX2_AVX512BW.

	* gcc.target/i386/pr79901.c: New test.

From-SVN: r245947

	PR rtl-optimization/79901
	* expr.c (expand_expr_real_2): For vector MIN/MAX, if there is no
	min/max expander, expand it using expand_vec_cond_expr.

From-SVN: r245946

	PR sanitizer/79897
	* ubsan.c (ubsan_encode_value): Call mark_addressable on the
	temporary.

	* c-c++-common/ubsan/pr79897.c: New test.

From-SVN: r245945

From-SVN: r245943

From-SVN: r245937

	PR c++/79821
	* dwarf2out.h (dw_vec_const): Change array type from unsigned char *
	to void * for PCH reasons.
	* dwarf2out.c (output_loc_operands, output_die): Cast
	v.val_vec.array to unsigned char *.

From-SVN: r245932

	PR target 77850
	* config/pa/pa-64.h (PAD_VARARGS_DOWN): Don't pad down complex and
	vector types.

From-SVN: r245931

From-SVN: r245929

re PR rtl-optimization/79571 (ICE in Max. number of generated reload insns per insn is achieved (90))

2017-03-06  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/79571
	* lra-constraints.c (process_alt_operands): Claculate static
	reject and subtract it from overal when there will be only address
	reloads.

2017-03-06  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/79571
	* gcc.target/i386/pr79571.c: New.

From-SVN: r245928

	PR c++/79796 - ICE with NSDMI and this pointer
	* call.c (build_over_call): Handle NSDMI with a 'this' by calling
	replace_placeholders.

	* g++.dg/cpp0x/nsdmi13.C: New test.

From-SVN: r245927

For 64-bit targets, the incoming stack of interrupt handler is aligned
to 16 bytes.  Update ix86_minimum_incoming_stack_boundary to set the
incoming stack boundary of interrupt handler to 128 for 64-bit targets.

gcc/

2017-03-06  Julia Koval  <julia.koval@intel.com>

	PR target/79793
	* config/i386/i386.c (ix86_minimum_incoming_stack_boundary): Set
	incoming stack boundary to 128 for 64-bit targets.

gcc/testsuite/

2017-03-06  Julia Koval  <julia.koval@intel.com>

	PR target/79793
	 * gcc.target/i386/interrupt-12.c: Update scan-assembler-times
	 directives.
	 * gcc.target/i386/interrupt-13.c: Ditto.
	 * gcc.target/i386/interrupt-14.c: Ditto.
	 * gcc.target/i386/interrupt-15.c: Ditto.

From-SVN: r245926

	PR c++/79822
	* constexpr.c (cxx_eval_statement_list): Treat empty ({ }) like
	({ (void) 0; }).

	* g++.dg/cpp0x/constexpr-79822.C: New test.

From-SVN: r245925

	* cp-tree.h, parser.c, pt.c, search.c: Revert.

From-SVN: r245924

2017-03-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79894
	* tree-vectorizer.c (vectorize_loops): Set loop_vectorized_call
	to NULL after folding it.

	* gcc.dg/vect/pr79887.c: New testcase.

From-SVN: r245923

2017-03-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79824
	* tree-vect-stmts.c (get_group_load_store_type): Fix alignment
	check disabling peeling for gaps.

	* gcc.dg/vect/pr79824-1.c: New testcase.
	* gcc.dg/vect/pr79824-2.c: Likewise.

From-SVN: r245922

gcc/
	* doc/sourcebuild.texi (Effective-Target Keywords, Environment
	attributes): Document gettimeofday.

gcc/testsuite/

	* gcc.dg/lto/pr60449_0.c: Add dg-require-effective-target for
	gettimeofday.  Remove dg-skip-if for AVR.
	* lib/target-supports.exp (check_effective_target_gettimeofday):
	New proc.

From-SVN: r245921

2017-03-06  Richard Biener  <rguenther@suse.de>

	PR fortran/79894
	* trans.c (gfc_add_modify_loc): Weaken assert.

From-SVN: r245919

The following patch defines the PARAM_MIN_VECT_LOOP_BOUND parameter in
the s390 backend.  It helps with the vectorization epilogue problem
described here [1].
I see an overall performance increase of > 1% in SPECfp2006, yet some
cases like cactusADM regress.  This seems to be caused by the vectorizer
creating an epilogue guard for one more iteration than before, which, in
turn, causes e.g. predcom to run on the epilogue that it used to ignore
before ("Loop iterates only 1 time, nothing to do.").  Subsequent,
minor, effects cause an eventual slowdown.

Until the reason for the bad epilogue code is understood, this patch
mitigates the problem.  When investigating the issue, I stumbled across
an attempt to vectorize the epilogue itself as well as combine it with
the vectorized loop in addition to vector masking [2].  A similar
approach might also help here.  My original observation of high register
pressure within the epilogue still stands.  In this specific case, it
would most likely suffice to save all registers once, run the epilogue
and restore the registers.  I'm pretty sure this would be faster than
the "spill fest" that's currently happening.

Regards
 Robin

[1] https://gcc.gnu.org/ml/gcc/2017-01/msg00234.html
[2] https://gcc.gnu.org/ml/gcc-patches/2016-05/msg01562.html

gcc/ChangeLog:

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_option_override_internal): Set
	PARAM_MIN_VECT_LOOP_BOUND

From-SVN: r245918