Since 4c4a180d lto has turned off flag_pic when linking a fixed
position executable.  So flag_pic is zero in rs6000_file_start.
However, when we get to actually emitting code, flag_pic may be on
again.  This results in undefined references to ".LCTOC1".

	PR target/68662
	* config/rs6000/rs6000.c (need_toc_init): New var, set it
	whenever toc_label_name used.
	(rs6000_file_start): Don't set up toc section here,
	(rs6000_output_function_epilogue): do so here instead,
	(rs6000_xcoff_file_start): and here.
	* config/rs6000/rs6000.md (load_toc_aix_si): Set need_toc_init.
	(load_toc_aix_di): Likewise.

From-SVN: r233061

	PR rtl-optimization/69592
	* rtlanal.c (nonzero_bits_binary_arith_p): New inline function.
	(cached_nonzero_bits): Use it instead of ARITHMETIC_P.
	(num_sign_bit_copies_binary_arith_p): New inline function.
	(cached_num_sign_bit_copies): Use it instead of ARITHMETIC_P.

	* gcc.dg/pr69592.c: New test.

From-SVN: r233059

	PR preprocessor/69543
	PR c/69558
	* c-pragma.c (handle_pragma_diagnostic): Pass input_location
	instead of loc to control_warning_option.

	* gcc.dg/pr69543.c: New test.
	* gcc.dg/pr69558.c: New test.

From-SVN: r233058

From-SVN: r233057

	* g++.dg/other/anon5.C (dg-opetions): Use -gdwarf-2 instead of -g.

From-SVN: r233056

From-SVN: r233054

	PR tree-optimization/68580
	* params.def (FSM_MAXIMUM_PHI_ARGUMENTS): New param.
	* tree-ssa-threadbackward.c
	(fsm_find_control_statement_thread_paths): Do not try to walk
	through large PHI nodes.

From-SVN: r233053

ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return false when count is incremented above limit...

	* ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return false
	when count is incremented above limit, don't analyze further
	insns afterwards.

From-SVN: r233050

From-SVN: r233045

	* omp-low.c (oacc_parse_default_dims): Avoid
	-Wsign-compare warning, make sure value fits into int
	rather than just unsigned int.

From-SVN: r233044

re PR tree-optimization/67921 ("internal compiler error: in build_polynomial_chrec, at tree-chrec.h:147" when using -fsanitize=undefined)


	PR tree-optimization/67921
	* fold-const.c (split_tree): New parameters.  Convert pointer
	type variable part to proper type before negating. 
	(fold_binary_loc): Pass new arguments to split_tree.

	gcc/testsuite/ChangeLog
	PR tree-optimization/67921
	* c-c++-common/ubsan/pr67921.c: New test.

From-SVN: r233042

	gcc/
	* config/nvptx/nvptx.c (PTX_GANG_DEFAULT): New.
	(nvptx_goacc_validate_dims): Extend to handle global defaults.
	* target.def (OACC_VALIDATE_DIMS): Extend documentation.
	* doc/tm.texti: Rebuilt.
	* doc/invoke.texi (fopenacc-dim): Document.
	* lto-wrapper.c (merge_and_complain): Add OPT_fopenacc_dim_ case.
	(append_compiler_options): Likewise.
	* omp-low.c (oacc_default_dims, oacc_min_dims): New.
	(oacc_parse_default_dims): New.
	(oacc_validate_dims): Add USED arg.  Select non-unity default when
	possible.
	(oacc_loop_fixed_partitions): Return mask of used partitions.
	(oacc_loop_auto_partitions): Emit dump info.
	(oacc_loop_partition): Return mask of used partitions.
	(execute_oacc_device_lower): Parse default dimension arg.  Adjust
	loop partitioning and validation calls.

	gcc/c-family/
	* c.opt (fopenacc-dim=): New option.

	gcc/fortran/
	* lang.opt (fopenacc-dim=): New option.

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/loop-dim-default.c: New.
	* testsuite/libgomp.oacc-fortran/routine-7.f90: Serialize loop.

From-SVN: r233041

2016-02-01  Richard Biener  <rguenther@suse.de>

	PR middle-end/69556
	* match.pd: Guard (C1/X)*C2 -> (C1*C2)/X with single_use.

	* gcc.dg/tree-ssa/recip-8.c: New testcase.

From-SVN: r233040

re PR tree-optimization/69574 (gcc ICE at -O2 and -O3 on x86_64-linux-gnu in hide_evolution_in_other_loops_than_loop)

2016-02-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69574
	* tree-chrec.c (hide_evolution_in_other_loops_than_loop): Instead
	of asserting return chrec_dont_know.

	* gcc.dg/torture/pr69574.c: New testcase.

From-SVN: r233039

	* mem-stats-traits.h: Add copyright header.
	* mem-stats.h: Likewise.

From-SVN: r233037

re PR tree-optimization/69579 (gcc ICE at -O3 and __sigsetjmp with “tree check: expected ssa_name, have integer_cst in compute_optimized_partition_bases”)

2016-02-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69579
	* tree-ssa-loop-ivcanon.c (propagate_constants_for_unrolling):
	Do not propagate through abnormal PHI results.

	* gcc.dg/setjmp-6.c: New testcase.

From-SVN: r233036

2016-02-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR libstdc++/69581
	* include/c_compatibility/math.h: Move header guards.
	* include/c_compatibility/stdlib.h: Likewise.

From-SVN: r233035

From-SVN: r233034

	PR rtl-optimization/69570
	* ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return true only
	if there is more than one set, not if there is a single set.

	* g++.dg/opt/pr69570.C: New test.

From-SVN: r233033

re PR rtl-optimization/69535 (wrong code with -O -fno-tree-bit-ccp -fno-tree-reassoc due to use of uninitialised value)

PR rtl-opt/69535

  * combine.c (make_compound_operation): When looking through a
  subreg, make sure to re-extend to the width of the outer mode.

From-SVN: r233032

	PR testsuite/69584
	* gcc.dg/tree-ssa/sra-17.c: Fix regexps to work on hpux.
	* gcc.dg/tree-ssa/sra-18.c: Likewise.

From-SVN: r233030

	PR target/68741
	* inclhack.def (hpux_vsscanf): New fix.
	* fixincl.x: Regenerated.
	* tests/base/stdio.h [HPUX_VSSCANF_CHECK]: New test.

From-SVN: r233029

	PR debug/68244
	* g++.dg/parse/parens3.C: Use register "4" on hppa.

From-SVN: r233028

	* gcc.dg/tree-ssa/vector-5.c: Add -fno-common option on hppa*-*-hpux*.

From-SVN: r233027

From-SVN: r233026

gcc/po:
	* gcc.pot: Regenerate.

libcpp/po:
	* cpplib.pot: Regenerate.

From-SVN: r233023

From-SVN: r233021

	PR c++/68763

	* tree.c (strip_typedefs) [FUNCTION_TYPE]: Avoid building a new
	function type if nothing is changing.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r233020

	PR c++/69009

	* pt.c (partial_specialization_p, impartial_args): New.
	(instantiate_decl): Call impartial_args.

From-SVN: r233019

	* mangle.c (maybe_check_abi_tags): New.
	(write_guarded_var_name): Call it.
	(mangle_ref_init_variable): Call check_abi_tags.

From-SVN: r233018

	* pt.c (lookup_template_class_1): Don't share TYPE_ATTRIBUTES
	between template and instantiation.

From-SVN: r233017

2016-01-31  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/67564
	* trans-expr.c (gfc_conv_procedure_call): For the vtable copy
	subroutines, add a string length argument, when the actual
	argument is an unlimited polymorphic class object.

2016-01-31  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/67564
	* gfortran.dg/allocate_with_source_17.f03: New test.

From-SVN: r233016

From-SVN: r233015

	PR tree-optimization/69546
	* wide-int.cc (wi::divmod_internal): For unsigned division
	where both operands fit into uhwi, if o1 is 1 and o0 has
	msb set, if divident_prec is larger than bits per hwi,
	clear another quotient word and return 2 instead of 1.
	Similarly for remainder with msb in HWI set, if dividend_prec
	is larger than bits per hwi.

	* gcc.dg/torture/pr69546.c: New test.

From-SVN: r233012

2016-01-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/69566
	* trans-expr.c (gfc_conv_procedure_call): Correct expression
	for 'ulim_copy', which was missing a test for 'comp'.

2016-01-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/69566
	* gfortran.dg/unlimited_polymorphic_25.f03: New test.

From-SVN: r233011

gcc/testsuite/ChangeLog:
2016-01-30  Martin Sebor  <msebor@redhat.com>                                   
                                                                                
        PR c++/68490                                                            
        * g++.dg/ext/flexary10.C: New test.

From-SVN: r233010

2016-01-30  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/66707
	gfortran.dg/common_23.f90: New test.

From-SVN: r233008

2016-01-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR target/65546
	* gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c: Correct
	condition being checked, and disable it when the target supports
	misaligned loads and stores.

From-SVN: r233006

From-SVN: r233005

2016-01-29  Martin Jambor  <mjambor@suse.cz>

	* hsa-gen.c (get_memory_order_name): Mask with MEMMODEL_BASE_MASK.
	Use short lowercase names.
	(get_memory_order): Mask with MEMMODEL_BASE_MASK.  Support
	MEMMODEL_CONSUME with acquire semantics and MEMMODEL_SEQ_CST with
	acq_rel one.  Protect warning agains segfaults if
	get_memory_order_name returns NULL.
	(gen_hsa_ternary_atomic_for_builtin): Support with MEMMODEL_SEQ_CST
	with release semantics.  Do not warn if get_memory_order already did.
	(gen_hsa_insns_for_call): Support with MEMMODEL_SEQ_CST with acquire
	semantics.  Fix check for relaxed or acquire semantics.  Do not warn
	if get_memory_order already did.

From-SVN: r233000