/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

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

	* config/aarch64/aarch64.c (aarch64_bitmasks): Remove.
	(AARCH64_NUM_BITMASKS): Remove.
	(aarch64_bitmasks_cmp): Remove.
	(aarch64_build_bitmask_table): Remove.

From-SVN: r227948

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

	* config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Replace
	slow immediate matching loops with a faster algorithm.

From-SVN: r227947

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

	* config/aarch64/aarch64.c (aarch64_bitmask_imm): Reimplement using
	faster algorithm.

From-SVN: r227946

gcc/testsuite/
	* gcc.target/sh/pr43417.c: Move target independent test to ...
	* gcc.c-torture/compile/pr43417.c: ... here.

From-SVN: r227945

gcc/testsuite/
	* gcc.target/sh/sh.exp (check_effective_target_sh4a,
	check_effective_target_big_endian, check_effective_target_little_endian,
	check_effective_target_any_fpu, check_effective_target_double_fpu,
	check_effective_target_use_single_only_fpu,
	check_effective_target_default_single_fpu,
	check_effective_target_no_fpu, check_effective_target_has_xf_regs,
	check_effective_target_has_fsca, check_effective_target_has_fsrra,
	check_effective_target_has_fpchg, check_effective_target_has_dyn_shift,
	check_effective_target_fmovd_enabled,
	check_effective_target_has_privileged, check_effective_target_has_pref,
	check_effective_target_banked_r0r7_isr,
	check_effective_target_stack_save_isr): New effective target checks.
	* gcc.target/sh/pr51244-16.c: Merge into pr51244-15.c.
	* gcc.target/sh/pr51244-20-sh2a.c: Merge into pr51244-20.c.
	* gcc.target/sh/pr51244-3.c: Merge into pr51244-2.c
	* gcc.target/sh/pr54089-5.c: Merge into pr54089-4.c.
	* gcc.target/sh/20080410-1.c: Use new effective target checks.
	* gcc.target/sh/attr-isr-nosave_low_regs.c: Likewise.
	* gcc.target/sh/attr-isr.c: Likewise.
	* gcc.target/sh/fpul-usage-1.c: Likewise.
	* gcc.target/sh/hiconst.c: Likewise.
	* gcc.target/sh/mfmovd.c: Likewise.
	* gcc.target/sh/pr21255-3.c: Likewise.
	* gcc.target/sh/pr33135-1.c: Likewise.
	* gcc.target/sh/pr33135-2.c: Likewise.
	* gcc.target/sh/pr33135-3.c: Likewise.
	* gcc.target/sh/pr33135-4.c: Likewise.
	* gcc.target/sh/pr39423-2.c: Likewise.
	* gcc.target/sh/pr49880-4.c: Likewise.
	* gcc.target/sh/pr49880-5.c: Likewise.
	* gcc.target/sh/pr50749-sf-postinc-1.c: Likewise.
	* gcc.target/sh/pr50749-sf-postinc-2.c: Likewise.
	* gcc.target/sh/pr50749-sf-postinc-3.c: Likewise.
	* gcc.target/sh/pr50749-sf-postinc-4.c: Likewise.
	* gcc.target/sh/pr50749-sf-predec-1.c: Likewise.
	* gcc.target/sh/pr50749-sf-predec-2.c: Likewise.
	* gcc.target/sh/pr50749-sf-predec-3.c: Likewise.
	* gcc.target/sh/pr50749-sf-predec-4.c: Likewise.
	* gcc.target/sh/pr50751-2.c: Likewise.
	* gcc.target/sh/pr50751-3.c: Likewise.
	* gcc.target/sh/pr50751-5.c: Likewise.
	* gcc.target/sh/pr50751-6.c: Likewise.
	* gcc.target/sh/pr50751-8.c: Likewise.
	* gcc.target/sh/pr51244-15.c: Likewise.
	* gcc.target/sh/pr51244-2.c: Likewise.
	* gcc.target/sh/pr51244-20.c: Likewise.
	* gcc.target/sh/pr51244-6.c: Likewise.
	* gcc.target/sh/pr52483-4.c: Likewise.
	* gcc.target/sh/pr53511-1.c: Likewise.
	* gcc.target/sh/pr53512-1.c: Likewise.
	* gcc.target/sh/pr53512-2.c: Likewise.
	* gcc.target/sh/pr53512-3.c: Likewise.
	* gcc.target/sh/pr53512-4.c: Likewise.
	* gcc.target/sh/pr53513-1.c: Likewise.
	* gcc.target/sh/pr54089-2.c: Likewise.
	* gcc.target/sh/pr54089-3.c: Likewise.
	* gcc.target/sh/pr54089-4.c: Likewise.
	* gcc.target/sh/pr54602-2.c: Likewise.
	* gcc.target/sh/pr54602-3.c: Likewise.
	* gcc.target/sh/pr54602-4.c: Likewise.
	* gcc.target/sh/pr54680.c: Likewise.
	* gcc.target/sh/pr55303-1.c: Likewise.
	* gcc.target/sh/pr55303-2.c: Likewise.
	* gcc.target/sh/pr55303-3.c: Likewise.
	* gcc.target/sh/pr56547-1.c: Likewise.
	* gcc.target/sh/pr56547-2.c: Likewise.
	* gcc.target/sh/pr61195.c: Likewise.
	* gcc.target/sh/pr61996.c: Likewise.
	* gcc.target/sh/pr6526.c: Likewise.
	* gcc.target/sh/pragma-isr-nosave_low_regs.c: Likewise.
	* gcc.target/sh/pragma-isr-trapa2.c: Likewise.
	* gcc.target/sh/prefetch.c: Likewise.
	* gcc.target/sh/rte-delay-slot.c: Likewise.
	* gcc.target/sh/sh2a-band.c: Likewise.
	* gcc.target/sh/sh2a-bclr.c: Likewise.
	* gcc.target/sh/sh2a-bclrmem.c: Likewise.
	* gcc.target/sh/sh2a-bld.c: Likewise.
	* gcc.target/sh/sh2a-bor.c: Likewise.
	* gcc.target/sh/sh2a-bset.c: Likewise.
	* gcc.target/sh/sh2a-bsetmem.c: Likewise.
	* gcc.target/sh/sh2a-bxor.c: Likewise.
	* gcc.target/sh/sh2a-jsrn.c: Likewise.
	* gcc.target/sh/sh2a-movi20s.c: Likewise.
	* gcc.target/sh/sh2a-movrt.c: Likewise.
	* gcc.target/sh/sh2a-resbank.c: Likewise.
	* gcc.target/sh/sh2a-rtsn.c: Likewise.
	* gcc.target/sh/sh2a-tbr-jump.c: Likewise.
	* gcc.target/sh/sh4a-bitmovua.c: Likewise.
	* gcc.target/sh/sh4a-cosf.c: Likewise.
	* gcc.target/sh/sh4a-fsrra.c: Likewise.
	* gcc.target/sh/sh4a-memmovua.c: Likewise.
	* gcc.target/sh/sh4a-sincosf.c: Likewise.
	* gcc.target/sh/sh4a-sinf.c: Likewise.

From-SVN: r227944

	PR tree-optimization/47679
	* tree-ssa-dom.c (record_temporary_equivalences): No longer static.
	* tree-ssa-dom.h (record_temporary_equivalences): Add prototype.
	* tree-ssa-threadedge.c: Include tree-ssa-dom.h.
	(thread_through_normal_block): Use record_temporary_equivalences.

        PR tree-optimization/47679
	* g++.dg/warn/Wuninitialized-6.C: New test.

From-SVN: r227942

This renames the gimple_statement_base struct to gimple removes the
typedef of gimple_statement_base * to gimple, and then adjusts all of
the places that use the type.

gcc/ChangeLog:

2015-09-19  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* coretypes.h (gimple): Change typedef to be a forward
	declaration.
	* gimple.h (gimple_statement_base): rename to gimple.
	* (all functions and types using gimple): Adjust.
	* *.[ch]: Likewise.

gcc/cp/ChangeLog:

2015-09-19  Trevor Saunders  <tbsaunde@tbsaunde.org>

	* cp-gimplify.c (gimplify_must_not_throw_expr): Adjust.

From-SVN: r227941

From-SVN: r227940

2015-09-19  Andrew Dixie  <andrewd@gentrack.com>
            David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/xcoff.h (EH_FRAME_IN_DATA_SECTION): Delete.
        (ASM_PREFERRED_EH_DATA_FORMAT): Define.
        (EH_FRAME_THROUGH_COLLECT2): Define.
        (EH_TABLES_CAN_BE_READ_ONLY): Define.
        (ASM_OUTPUT_DWARF_PCREL): Define.
        (ASM_OUTPUT_DWARF_DATAREL): Define.

Co-Authored-By: David Edelsohn <dje.gcc@gmail.com>

From-SVN: r227937

	PR libstdc++/67361
	* include/bits/regex_error.h: Add __throw_regex_error that
	supports string.
	* include/bits/regex_automaton.h: Add more specific exception
	messages.
	* include/bits/regex_automaton.tcc: Likewise.
	* include/bits/regex_compiler.h: Likewise.
	* include/bits/regex_compiler.tcc: Likewise.
	* include/bits/regex_scanner.h: Likewise.
	* include/bits/regex_scanner.tcc: Likewise.

From-SVN: r227936

	* config/pa/pa.c (pa_function_ok_for_sibcall): Remove special treatment
	of TARGET_ELF32.

From-SVN: r227933

/cp
2015-09-18  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement nested namespace definitions.
	* parser.c (cp_parser_namespace_definition): Grok nested namespace
	definitions.

/testsuite
2015-09-18  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement nested namespace definitions.
	* g++.dg/cpp1z/nested-namespace-def1.C: New.
	* g++.dg/cpp1z/nested-namespace-def2.C: Likewise.
	* g++.dg/cpp1z/nested-namespace-def3.C: Likewise.
	* g++.dg/lookup/name-clash5.C: Adjust.
	* g++.dg/lookup/name-clash6.C: Likewise.

From-SVN: r227932

       PR tree-optimization/47679
        * tree-ssa-dom.c (avail_exprs_stack): No longer file scoped.  Move
        it here ...
        (dom_opt_dom_walker): New private member holding the avail_exprs_stack
        object.  Update constructor.
        (pass_dominator::execute):  Corresponding chagnes to declaration
        and initialization of avail_exprs_stack.  Update constructor call
        for dom_opt_dom_walker object.
        (lookup_avail_expr, record_cond): Accept additional argument.  Pass
        it down to children as needed.
        (record_equivalences_from_incoming_edge): Likewise.
        (eliminate_redundant_computations): Likewise.
        (record_equivalences_from_stmt): Likewise.
        (simplify_stmt_for_jump_threading): Likewise.
        (record_temporary_equivalences): Likewise.
        (optimize_stmt): Likewise.
        (dom_opt_dom_walker::thread_across_edge): Update access to
        avail_exprs_stack object and pass it to children as needed.
        (dom_opt_dom_walker::before_dom_children): Similarly.
        (dom_opt_dom_walker::after_dom_children): Similarly.
        * tree-ssa-threadedge.c (pfn_simplify): New typedef.
        (record_temporary_equivalences_from_stmts_at_dest): Use new typedef.
        Add avail_expr_stack argument.  Pass it to children as needed.
        (dummy_simplify): Likewise.
        (simplify_control_stmt_condition): Likewise.
        (thread_around_empty_blocks): Likewise.
        (thread_through_normal_block): Likewise.
        (thread_across_edge): Likewise.
        * tree-ssa-threadedge.h (thread_across_edge): Update prototype.
        * tree-vrp.c (simplify_stmt_for_jump_threading): Update.

From-SVN: r227931

From-SVN: r227929

2015-09-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* c-pragma.c (handle_pragma_diagnostic): Fix wrong return.

From-SVN: r227924

gcc/cp/ChangeLog:

2015-09-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* parser.c (pragma_lex): Add loc argument. Rearrange the code to
	make it more similar to the C version.

gcc/c-family/ChangeLog:

2015-09-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* c-pragma.c (handle_pragma_diagnostic): Use explicit location
	when warning.
	* c-pragma.h (pragma_lex): Add optional loc argument.

gcc/c/ChangeLog:

2015-09-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* c-parser.c (pragma_lex): Add loc argument.

gcc/testsuite/ChangeLog:

2015-09-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* gcc.dg/pragma-diag-5.c: New test.

From-SVN: r227923

        PR tree-optimization/47679
	* tree-ssa-dom.c (const_and_copies): No longer file scoped.  Move
	it here ...
	(dom_opt_dom_walker): New private member holding the const_and_copies
	object.  Update constructor.
	(pass_dominator::execute): Corresponding changes to declaration
	and initialization of const_and_copies.  Update constructor call
	for the dom_opt_dom_walker object.
	(record_temporary_equivalences): Accept const_and_copies argument
	pass it down to children as needed.
	(record_equality): Likewise.
	(record_equivalences_from_incoming_edge): Likewise.
	(cprop_into_successor_phis, optimize_stmt): Likewise.
	(eliminate_redundant_computations): Likewise.
	(dom_opt_dom_walker::thread_across_edge): Update access to
	const_and_copies object and pass it to children as needed.
	(dom_opt_dom_walker::before_dom_children): Similarly.
	(dom_opt_dom_walker::after_dom_children): Similarly.

From-SVN: r227922