gcc/c-family/ChangeLog:
	PR c/84258
	* c-format.c (struct format_check_results): Add field
	"number_non_char".
	(check_format_info): Initialize it, and warn if encountered.
	(check_format_arg): Distinguish between wide char and
	everything else when detecting arrays of non-char.

gcc/testsuite/ChangeLog:
	PR c/84258
	* c-c++-common/Wformat-pr84258.c: New test.

From-SVN: r259807

	PR tree-optimization/82665
	* vr-values.c (vr_values::extract_range_from_binary_expr): Handle
	pointer subtraction where arguments come from a memchr call.

        PR tree-optimization/82665
	* gcc.dg/tree-ssa/pr82665.c: New test.

From-SVN: r259806

	* semantics.c (finish_qualified_id_expr): Don't return an
	unqualified IDENTIFIER_NODE.

From-SVN: r259805

configure.ac (LD_AS_NEEDED_OPTION, [...]): Use --push-state --as-needed and --pop-state instead of --as-needed and...

	* configure.ac (LD_AS_NEEDED_OPTION, LD_NO_AS_NEEDED_OPTION): Use
	--push-state --as-needed and --pop-state instead of --as-needed and
	--no-as-needed if ld supports it.
	* configure: Regenerated.

From-SVN: r259803

	* configure.ac: Added "nfp" target.
	* configure: Regenerate.

From-SVN: r259800

re PR web/85578 (broken links in gcc-8.0.1-RC-20180427/INSTALL/specific.html, and out of date prerequisites.html)

	PR web/85578
	* doc/install.texi2html: Replace _002d with - and _002a with * in
	generated html files using sed.

From-SVN: r259799

	PR go/85429
    cmd/go: support more Solaris assembler syntaxes
    
    Patch by Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/110563

From-SVN: r259797

	* name-lookup.c (check_extern_c_conflict): Ignore local decls.

From-SVN: r259793

From-SVN: r259787

This patch adds a support function to class gcc_rich_location
to make it easier for fix-it hints to use idiomatic C/C++
indentation, for use by the patch for PR c++/85523.

gcc/ChangeLog:
	PR c++/85523
	* gcc-rich-location.c (blank_line_before_p): New function.
	(use_new_line): New function.
	(gcc_rich_location::add_fixit_insert_formatted): New function.
	* gcc-rich-location.h
	(gcc_rich_location::add_fixit_insert_formatted): New function.

gcc/testsuite/ChangeLog:
	PR c++/85523
	* gcc.dg/plugin/diagnostic-test-show-locus-generate-patch.c
	(test_add_fixit_insert_formatted_single_line): New function.
	(test_add_fixit_insert_formatted_multiline): New function.
	Extend expected output of generated patch to include fix-it hints
	for these.
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c: Include
	"gcc-rich-location.h".  Add test coverage for
	gcc_rich_location::add_fixit_insert_formatted.

From-SVN: r259783

gcc/ChangeLog:
	* selftest.c (assert_streq): Rename "expected" and "actual" to
	"val1" and "val2".  Extend NULL-handling to cover both inputs
	symmetrically, while still requiring both to be non-NULL for a pass.
	* selftest.h (assert_streq): Rename "expected" and "actual" to
	"val1" and "val2".
	(ASSERT_EQ): Likewise.
	(ASSERT_EQ_AT): Likewise.
	(ASSERT_KNOWN_EQ): Likewise.
	(ASSERT_KNOWN_EQ_AT): Likewise.
	(ASSERT_NE): Likewise.
	(ASSERT_MAYBE_NE): Likewise.
	(ASSERT_MAYBE_NE_AT): Likewise.
	(ASSERT_STREQ): Likewise.  Clarify that both must be non-NULL for
	the assertion to pass.
	(ASSERT_STREQ_AT): Likewise.

From-SVN: r259782

	* decl.c (grokdeclarator): Overhaul diagnostics for invalid use
	of long/short/signed/unsigned.

From-SVN: r259780

	* parser.c (cp_parser_initializer): Add subexpression_p parm; don't
	check_for_bare_parameter_packs in a subexpression.
	(cp_parser_lambda_introducer): Use it.

From-SVN: r259779

       * argv.c (expandargv): Fix memory leak for expanded
        arguments.

From-SVN: r259775

	* doc/invoke.texi (-fpie, -fPIE): Fix grammar and clarify
	interaction with -pie.

From-SVN: r259774

gcc/ChangeLog:
	* selftest.h: Fix alphabetization of per-source-file selftest
	declarations.

From-SVN: r259773

gcc/cp/
	* call.c (build_trivial_dtor_call): New, assigns a clobber.
	(build_over_call, build_special_member_call): Use it.
	* cp-tree.h: Declare it.
	* init.c (build_delete): Remove trivial path.
gcc/
	* gimplify.c (gimplify_modify_expr): Simplify complex lvalue on LHS
	of clobber.

From-SVN: r259772

	* init.c (build_dtor_call): Use build_special_member_call.

	(build_delete): Remove redundant uses of save_addr.

From-SVN: r259771

	* tree.c (build_clobber): New.

	* tree.h: Declare it.
	* gimplify.c (gimplify_bind_expr, gimplify_target_expr): Use it.

From-SVN: r259770

location_get_source_line returns a const char * that isn't 0-terminated,
writing back a length through an int * param.

This is error-prone, as all call-sites have to take into account the
lack of 0-termination, and respect the length of the buffer.

It's cleaner to bundle together this pointer+length state into a class,
so this patch does so, reusing the "char_span" class that I introduced
in r250187 (as part of the fix for PR c/81405).

The patch also adds assertions to all access to the char_span.

gcc/c-family/ChangeLog:
	* c-format.c (get_corrected_substring): Update for
	location_get_source_line returning a char_span.  Use a char_span
	when handling the prefix of the correction.
	* c-indentation.c (get_visual_column): Update for
	location_get_source_line returning a char_span.
	(get_first_nws_vis_column): Likewise.

gcc/ChangeLog:
	* diagnostic-show-locus.c (layout::layout): Update for
	location_get_source_line returning a char_span.
	(struct char_span): Move to input.h.
	(struct correction): Update for fields in char_span becoming
	private.
	(struct source_line): Update for location_get_source_line
	returning a char_span.
	(layout::print_line): Likewise.
	* edit-context.c (edited_file::print_content): Likewise.
	(edited_file::print_diff_hunk): Likewise.
	(edited_file::print_run_of_changed_lines): Likewise.
	(edited_file::get_num_lines): Likewise.
	(edited_line::edited_line): Likewise.
	* final.c (asm_show_source): Likewise.
	* input.c (location_get_source_line): Convert return type
	from const char * to char_span, losing the final "line_len"
	param.
	(dump_location_info): Update for the above.
	(get_substring_ranges_for_loc): Likewise.  Use a char_span
	when handling the literal within the line.
	(test_reading_source_line): Update for location_get_source_line
	returning a char_span.
	* input.h (class char_span): Move here from
	diagnostic-show-locus.c, converting from a struct to a class.
	Make data members private.
	(char_span::operator bool): New.
	(char_span::length): New.
	(char_span::get_buffer): New.
	(char_span::operator[]): New.
	(char_span::subspan): Make const.
	(char_span::xstrdup): New.
	(location_get_source_line): Convert return type from const char *
	to char_span, losing the final "line_size" param.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
	(test_show_locus): Update for location_get_source_line returning a
	char_span.  Use char_span for handling words in the
	"test_many_nested_locations" fix-it example.

From-SVN: r259768

	* lto-wrapper.c (ltrans_priorities): New static var.
	(cmp_priority): New.
	(run_gcc): Read priorities and if doing parallel build order
	the Makefile by them.

	* lto.c (cmp_partitions_size): Remove.
	(lto_wpa_write_files): Also output priorities; do not sort partitions.
	(cmp_partition_order): Move to ...
	* lto-partition.c (cmp_partition_order): ...
	(lto_1_to_1_map): Sort partitions.

From-SVN: r259767

gcc/ChangeLog:
	* input.h (builtins_location_check): Convert to a STATIC_ASSERT.

From-SVN: r259766

tree-cfg.c (verify_address): Remove base argument, add flag whether to check TREE_ADDRESSABLE and do that.

2018-04-30  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (verify_address): Remove base argument, add
	flag whether to check TREE_ADDRESSABLE and do that.
	(verify_expr): Remove.
	(verify_types_in_gimple_reference): Add pieces from verify_expr.
	(verify_gimple_assign_single): Likewise.
	(verify_gimple_switch): Likewise.
	(verify_expr_location_1): Dereference tp once.  Add (disabled)
	piece from verify_expr.
	(verify_gimple_in_cfg): Do not call verify_expr on all ops.

From-SVN: r259765

Clear the instruction cache from `beg' to `end'.  This makes an inline
system call to SYS_cacheflush.

gcc/
2017-03-28  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/linux.h (CLEAR_INSN_CACHE): Define.

From-SVN: r259764

Clean up how we handle small data load/store operations.

gcc/
2018-01-18  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-protos.h (prepare_extend_operands): Remove.
	(small_data_pattern): Likewise.
	(arc_rewrite_small_data): Likewise.
	* config/arc/arc.c (LEGITIMATE_SMALL_DATA_OFFSET_P): Remove.
	(LEGITIMATE_SMALL_DATA_ADDRESS_P): Likewise.
	(get_symbol_alignment): New function.
	(legitimate_small_data_address_p): Likewise.
	(legitimate_scaled_address): Update, call
	legitimate_small_data_address_p.
	(output_sdata): New static variable.
	(arc_print_operand): Update how we handle small data operands.
	(arc_print_operand_address): Likewise.
	(arc_legitimate_address_p): Update, use
	legitimate_small_data_address_p.
	(arc_rewrite_small_data_p): Remove.
	(arc_rewrite_small_data_1): Likewise.
	(arc_rewrite_small_data): Likewise.
	(small_data_pattern): Likewise.
	(compact_sda_memory_operand): Update to use
	legitimate_small_data_address_p and get_symbol_alignment.
	(prepare_move_operands): Don't rewite sdata pattern.
	(prepare_extend_operands): Remove.
	* config/arc/arc.md (zero_extendqihi2): Don't rewrite sdata
	pattern.
	(zero_extendqisi2): Likewise.
	(zero_extendhisi2): Likewise.
	(extendqihi2): Likewise.
	(extendqisi2): Likewise.
	(extendhisi2): Likewise.
	(addsi3): Likewise.
	(subsi3): Likewise.
	(andsi3): Likewise.
	* config/arc/constraints.md (Usd): Change it to memory constraint.

gcc/testsuite
2018-01-18  Claudiu Zissulescu  <claziss@synopsys.com>

	* gcc.target/arc/interrupt-8.c: Update test.
	* gcc.target/arc/loop-4.c: Likewise.
	* gcc.target/arc/loop-hazard-1.c: Likewise.
	* gcc.target/arc/sdata-3.c: Likewise.

From-SVN: r259763

Allow signed 6-bit short immediates into st[d] instructions.

2017-10-19  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (arc_split_move): Allow signed 6-bit constants
	as source of std instructions.
	* config/arc/arc.md (movsi_insn): Update pattern predicate to
	allow 6-bit constants as source for store instructions.
	(movdi_insn): Update instruction pattern to allow 6-bit constants
	as source for store instructions.

testsuite/
2017-10-19  Claudiu Zissulescu  <claziss@synopsys.com>

	* gcc.target/arc/store-merge-1.c: New test.
	* gcc.target/arc/add_n-combine.c: Update test.

From-SVN: r259762

From-SVN: r259761

https://gcc.gnu.org/ml/gcc-patches/2018-04/msg01303.html
	* dumpfile.c (dump_open): Allow '-' for stdout.
	* doc/invoke.texi (Developer Options): Document dump filename
	determination early.  Document stdin/stdout selection.

Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>

From-SVN: r259760

From-SVN: r259759

2018-04-30 Andrew Sadek  <andrew.sadek.se@gmail.com>

gcc/ChangeLog:
	* config/microblaze/microblaze.opt: add new option -mpic-data-text-rel.
	* config/microblaze/microblaze-protos.h (microblaze_constant_address_p):
	Add declaration.
	* gcc/config/microblaze/microblaze.h (microblaze_constant_address_p):
	CONSTANT_ADDRESS_P definition to microblaze_constant_address_p.
	* config/microblaze/microblaze.c (TARGET_PIC_DATA_TEXT_REL):
	New addressing mode for data-text relative position indepenedent code.
	(microblaze_classify_unspec): add 'UNSPEC_TEXT' case ->
	'ADDRESS_SYMBOLIC_TXT_REL'.
	(microblaze_classify_address): Add handling for UNSPEC + CONST_INT.
	(microblaze_legitimate_pic_operand): Exclude function calls from
	pic operands in case of TARGET_PIC_DATA_TEXT_REL option.
	(microblaze_legitimize_address): Generate 'UNSPEC_TEXT' for all possible
	addresses cases.
	(microblaze_address_insns): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
	(print_operand): Add 'ADDRESS_SYMBOLIC_TXT_REL' case.
	(print_operand_address): Add 'ADDRESS_SYMBOLIC_TXT_REL' case + handling
	for 'address + offset'.
	(microblaze_expand_prologue): Add new function prologue call for
	'r20' assignation.
	(microblaze_asm_generate_pic_addr_dif_vec): Override new target hook
	'TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC' to disable address diff vector
	table in case of TARGET_PIC_DATA_TEXT_REL.
	(expand_pic_symbol_ref): Add handling for 'UNSPEC_TEXT'.
	* gcc/config/microblaze/microblaze.md (TARGET_PIC_DATA_TEXT_REL):
	Add new macros 'UNSPEC_TEXT',
	'UNSPEC_SET_TEXT' + add rule for setting r20 in function prologue
	+ exclude function calls from 'UNSPEC_PLT' in case of data text
	relative mode.
	* doc/tm.texi.in (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
	new target hook for generating address diff vector tables in case of
	flag_pic.
	* doc/tm.texi : Regenerate.
	* stmt.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Append new condition
	'targetm.asm_out.generate_pic_addr_diff_vec' to flag_pic in case
	of addr diff vector generation.
	* target.def (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC): Add
	target hook definition.
	* targhooks.h, gcc/targhooks.c (TARGET_ASM_GENERATE_PIC_ADDR_DIFF_VEC):
	Add default function for generate_pic_addr_diff_vec -> flag_pic.
	* doc/invoke.texi (Add new pic option): Add new microblaze pic
	option for data text relative.

testsuite/ChangeLog:
	* gcc.target/microblaze/others/data_var1.c: Include
	PIC case of r20 base register.
	* gcc.target/microblaze/others/data_var2.c: Ditto.
	* gcc.target/microblaze/others/picdtr.c: Add new
	test case for -mpic-is-data-text-relative.
	* gcc.target/microblaze/others/sdata_var1.c: Add
	* gcc.target/microblaze/others/sdata_var2.c: Ditto.
	* gcc.target/microblaze/others/sdata_var3.c: Ditto.
	* gcc.target/microblaze/others/sdata_var4.c: Ditto.
	* gcc.target/microblaze/others/sdata_var5.c: Ditto.
	* gcc.target/microblaze/others/sdata_var6.c: Ditto.
	* gcc.target/microblaze/others/string_cst1_gpopt.c:	Ditto.
	* gcc.target/microblaze/others/string_cst2_gpopt.c: Ditto.

From-SVN: r259758

2018-04-30  Richard Biener  <rguenther@suse.de>

	* tree-chrec.h (evolution_function_is_constant_p): Remove
	redundant check.
	* tree-cfg.c (tree_node_can_be_shared): Re-order checks.

From-SVN: r259756

2018-04-30  Richard Biener  <rguenther@suse.de>

	PR bootstrap/85571
	* Makefile.tpl (STAGE3_CFLAGS): Use -fchecking=1.
	(STAGE3_TFLAGS): Likewise.
	(STAGEtrain_CFLAGS): Filter out -fchecking=1.
	(STAGEtrain_TFLAGS): Likewise.
	* Makefile.in: Regenerate.

	* dwarf2out.c (gen_producer_string): Ignore -fchecking[=].

From-SVN: r259755

re PR tree-optimization/28364 (poor optimization choices when iterating over a std::string (probably not c++-specific))

2018-04-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/28364
	PR tree-optimization/85275
	* tree-ssa-loop-ch.c (ch_base::copy_headers): Stop after
	copying first exit test.

	* gcc.dg/tree-ssa/copy-headers-5.c: New testcase.
	* gcc.dg/tree-ssa/predcom-8.c: Likewise.
	* gcc.dg/tree-ssa/cunroll-13.c: Rewrite to gimple testcase.
	* gcc.dg/tree-ssa/ivopt_mult_1.c: XFAIL.
	* gcc.dg/tree-ssa/ivopt_mult_1g.c: Add gimple variant that
	still passes.
	* gcc.dg/tree-ssa/ivopt_mult_2.c: XFAIL.
	* gcc.dg/tree-ssa/ivopt_mult_2g.c: Add gimple variant that
	still passes.
	* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Adjust.
	* gcc.dg/tree-ssa/20030710-1.c: Likewise.
	* gcc.dg/tree-ssa/20030711-1.c: Likewise.

From-SVN: r259754

From-SVN: r259753

	* lto-partition.c: Include sreal.h
	(add_symbol_to_partition_1): Use size instead of self_size
	for size estimate.
	(account_reference_p): New.
	(lto_balanced_map): Use 64bit arithmetics for size calculatoins; cleanup;
	fix accounting errors in boundary size; add debug output; combine cost
	as cost/size instead of cost/internal; reduce the partitioning error to
	+- 1/8 of the parttion size.

From-SVN: r259749

2018-04-29  Julian Brown  <julian@codesourcery.com>
	    Tom de Vries  <tom@codesourcery.com>

	PR testsuite/85527
	* testsuite/libgomp.oacc-c-c++-common/atomic_capture-1.c: Allow
	arbitrary order for iterations of atomic subtract check.

Co-Authored-By: Tom de Vries <tom@codesourcery.com>

From-SVN: r259748

From-SVN: r259747

GNU DebugFission didn't add table headers for the .debug_addr
tables, but DWARF5 does. The table header makes it possible
for a DWARF consumer to parse the address tables without having
to index all .debug_info CUs first.

We can keep using the .debug_addr section label as is, because the
DW_AT_[GNU_]addr_base attribute points at the actual address index,
which starts right after the table header. So the label is generated
at the correct location whether the header is added first or not.

Add DW_AT_addr_base instead of DW_AT_GNU_addr_base to the skeleton
CU DIE for DWARF5.

gcc/ChangeLog

	* dwarf2out.c (dwarf2out_finish): Add .debug_addr table header for
	dwarf_version >= 5.
	(dwarf_AT): Handle DW_AT_addr_base.
	(add_top_level_skeleton_die_attrs): Use dwarf_AT for DW_AT_addr_base.

From-SVN: r259743

	PR target/84431
	* config/i386/i386.md (*ashl<dwi>3_doubleword_mask): New pattern.
	(*ashl<dwi>3_doubleword_mask_1): Ditto.
	(*<shift_insn><dwi>3_doubleword_mask): Ditto.
	(*<shift_insn><dwi>3_doubleword_mask_1): Ditto.

testsuite/ChangeLog:

	PR target/84431
	* gcc.target/i386/pr84431.c: New test.

From-SVN: r259739

2018-04-28  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (verify_gimple_phi): Take a gphi * argument.
	(verify_gimple_in_cfg): Rename visited_stmts to visited_throwing_stmts
	to reflect use.  Only add interesting stmts.

From-SVN: r259738