2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>

	PR libstdc++/84654
	* acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
	* config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
	* configure: Regenerate.
	* include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
	based on ENABLE_FLOAT128.
	* include/Makefile.in: Regenerate.
	* include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
	[!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
	_GLIBCXX_USE_FLOAT128.

From-SVN: r259813

2018-05-01  Marc Glisse  <marc.glisse@inria.fr>

	PR tree-optimization/85143
gcc/
	* match.pd (A<B&A<C): Extend to BIT_IOR_EXPR.

gcc/testsuite/
	* gcc.dg/tree-ssa/minmax-loopend.c: Extend and split...
	* gcc.dg/tree-ssa/minmax-loopend-2.c: ... here.

From-SVN: r259812

From-SVN: r259810

2018-05-01  Tom de Vries  <tom@codesourcery.com>

	PR lto/85451
	* config/nvptx/mkoffload.c (main): Suggest using -B in "offload compiler
	not found" error message.

From-SVN: r259809

2018-05-01  Tom de Vries  <tom@codesourcery.com>

	PR other/83786
	* vec.h	(VEC_ORDERED_REMOVE_IF, VEC_ORDERED_REMOVE_IF_FROM_TO): Define.
	* vec.c (test_ordered_remove_if): New function.
	(vec_c_tests): Call test_ordered_remove_if.
	* dwarf2cfi.c (connect_traces): Use VEC_ORDERED_REMOVE_IF_FROM_TO.
	* lto-streamer-out.c (prune_offload_funcs): Use VEC_ORDERED_REMOVE_IF.
	* tree-vect-patterns.c (vect_pattern_recog_1): Use
	VEC_ORDERED_REMOVE_IF.

From-SVN: r259808

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