2017-08-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80477
	* trans-expr.c (gfc_conv_procedure_call): Allocatable class
	scalar results being passed to a derived type formal argument
	are finalized if possible. Otherwise, rely on existing code for
	deallocation. Make the deallocation of allocatable result
	components conditional on finalization not taking place. Make
	the freeing of data components after finalization conditional
	on the data being NULL.
	(gfc_trans_arrayfunc_assign): Change the gcc_assert to a
	condition to return NULL_TREE.
	(gfc_trans_assignment_1): If the assignment is class to class
	and the rhs expression must be finalized but the assignment
	is not marked as a polymorphic assignment, use the vptr copy
	function instead of gfc_trans_scalar_assign.

	PR fortran/86481
	* trans-expr.c (gfc_conv_expr_reference): Do not add the post
	block to the pre block if the expression is to be finalized.
	* trans-stmt.c (gfc_trans_allocate): If the expr3 must be
	finalized, load the post block into a finalization block and
	add it right at the end of the allocation block.

2017-08-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80477
	* gfortran.dg/class_result_7.f90: New test.
	* gfortran.dg/class_result_8.f90: New test.
	* gfortran.dg/class_result_9.f90: New test.

	PR fortran/86481
	* gfortran.dg/allocate_with_source_25.f90: New test.

From-SVN: r263916

	PR middle-end/87099
	* calls.c (maybe_warn_nonstring_arg): Punt early if
	warn_stringop_overflow is zero.  Don't call get_range_strlen
	on 3rd argument, keep iterating until lenrng[1] is INTEGER_CST.
	Swap comparison operands to have constants on rhs.  Only use
	lenrng[1] if non-NULL and INTEGER_CST.  Don't uselessly
	increment lenrng[0].

	* gcc.dg/pr87099.c: New test.

From-SVN: r263915

Fixes many testsuite failures for SVE.

2018-08-28  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Fix unguarded
	use of tree_to_shwi.  Remove duplicated test for the size being
	a whole number of bytes.

From-SVN: r263914

This test was failing for Power 7 due to the lack of hw support
for unaligned accesses.

2018-08-28  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	PR testsuite/87078
	* gcc.dg/vect/slp-37.c: Restrict scan tests to vect_hw_misalign.

From-SVN: r263913

re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)

2018-08-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87117
	* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_cleanup):
	Handle removed stmt without LHS (GIMPLE_NOP).

From-SVN: r263912

re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)

2018-08-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87117
	* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Exclude
	void which is is_gimple_reg_type by checking for COMPLETE_TYPE_P.

	* gcc.dg/pr87117-1.c: New testcase.

From-SVN: r263911

re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)

2018-08-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87117
	* tree-ssa-pre.c (compute_avail): Do not make expressions
	with predicated values available.
	(get_expr_value_id): Assert we do not run into predicated value
	expressions.

	* gcc.dg/pr87117-2.c: New testcase.

From-SVN: r263910

re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)

2018-08-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87117
	* tree-ssa-operands.c (add_stmt_operand): STRING_CST may
	get virtual operands.
	(get_expr_operands): Handle STRING_CST like other decls.

	* gcc.dg/lvalue-5.c: New testcase.

From-SVN: r263908

2018-08-28  Martin Liska  <mliska@suse.cz>

	* tree.h: Update documentation of fndecl_built_in_p
	functions.

From-SVN: r263907

	PR tree-optimization/87110
	* tree-ssa-dse.c (compute_trims): Handle non-constant
	TYPE_SIZE_UNIT.

	PR tree-optimization/87110
	* gcc.c-torture/compile/pr87110.c: New test.

From-SVN: r263906

PR tree-optimization/86914 - wrong code with strlen() of poor-man's flexible array member plus offset

gcc/ChangeLog:

	PR tree-optimization/86914
	* tree-ssa-strlen.c (maybe_set_strlen_range): Avoid MEM_REF.

gcc/testsuite/ChangeLog:

	PR tree-optimization/86914
	* gcc.dg/strlenopt-57.c: New test.

From-SVN: r263905

From-SVN: r263904

gcc/ChangeLog:

	PR tree-optimization/87112
	* builtins.c (expand_builtin_strnlen): Convert c_strlen result to
	the type of the bound argument.

gcc/testsuite/ChangeLog:

	PR tree-optimization/87112
	* gcc.dg/pr87112.c: New test.

From-SVN: r263900

This patch adds a fix-it hint to missing "typename" errors in the C++
frontend, suggesting the insertion of "typename ".

This addresses part of PR c++/63392; however it does not improve the
error-recovery for such cases.

gcc/cp/ChangeLog:
	PR c++/63392
	* parser.c (cp_parser_diagnose_invalid_type_name): Add fix-it
	hint.

gcc/testsuite/ChangeLog:
	PR c++/63392
	* g++.dg/diagnostic/missing-typename.C: New test.

From-SVN: r263899

tree-ssa-dse.c (compute_trims): Handle case where the reference's type does not have a TYPE_SIZE_UNIT.

	* tree-ssa-dse.c (compute_trims): Handle case where the reference's
	type does not have a TYPE_SIZE_UNIT.

	* gcc.c-torture/compile/dse.c: New test.

From-SVN: r263896

	PR c++/86993
	* cp-tree.h (cxx_readonly_error): Add location_t argument.
	* typeck2.c (cxx_readonly_error): Add LOC argument, pass it to
	ERROR_FOR_ASSIGNMENT macro and readonly_error.  Add LOC argument
	to ERROR_FOR_ASSIGNMENT macro, use error_at instead of error and
	pass LOC to it.  Formatting fixes.
	* typeck.c (cp_build_unary_op): Pass location to cxx_readonly_error.
	(cp_build_modify_expr): Pass loc to cxx_readonly_error.
	* semantics.c (finish_asm_stmt): Pass input_location to
	cxx_readonly_error.

	* g++.dg/diagnostic/pr86993.C: New test.

From-SVN: r263891

2018-08-27  Steve Ellcey  <sellcey@cavium.com>

	* config/aarch64/aarch64-speculation.cc: Replace include of cfg.h
	with include of backend.h.

From-SVN: r263890

2018-08-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86927
	* tree-vect-loop.c (vect_create_epilog_for_reduction): Properly
	use const cond reduction code.

	* gcc.dg/vect/pr86927.c: New testcase.

From-SVN: r263888

	PR tree-optimization/85758
	* match.pd ((X & Y) ^ Y): Add :s qualifier to inner expression.

From-SVN: r263887

From-SVN: r263886

This patch tweaks maybe_add_include_fixit so that if we're emitting a note
about adding the header file, the note's primary location will be replaced
by that of the fix-it hint, to avoid repeating a location we've already
emitted (or one close to it).

For example, this simplifies:

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:27: error: msg 1
  87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
     |                           ^~~~~~
  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22: note: msg 2
   73 | # include <debug/vector>
  +++ |+#include <vector>
   74 | #endif
  ....
   87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |                      ^~~

to:

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:27: error: msg 1
  87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
     |                           ^~~~~~
  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:74:1: note: msg 2
   73 | # include <debug/vector>
  +++ |+#include <vector>
   74 | #endif

eliminating the repetition of line 87 in the note.

Doing so requires converting show_caret_p to a tri-state, to avoid
meaninglessly printing a caret for the first column in the next line
(and colorizing it):

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:74:1: note: msg 2
   73 | # include <debug/vector>
  +++ |+#include <vector>
   74 | #endif
      | ^

gcc/c-family/ChangeLog:
	PR 87091
	* c-common.c (c_cpp_error): Update for conversion of show_caret_p
	to a tri-state.
	(maybe_suggest_missing_token_insertion): Likewise.
	(maybe_add_include_fixit): Add param "override_location".  If set,
	and source-printing is enabled, then override the rich_location's
	primary location with that of the insertion point for the fix-it
	hint, marking it with SHOW_LINES_WITHOUT_RANGE.
	* c-common.h (extern void maybe_add_include_fixit): Add bool
	param.
	* c-format.c (selftest::test_type_mismatch_range_labels): Update
	for conversion of show_caret_p to a tri-state.
	* c-warn.c (warn_for_restrict): Likewise.
	* known-headers.cc
	(suggest_missing_header::~suggest_missing_header): Update call to
	maybe_add_include_fixit to suggest overriding the location, as it
	is for a note.

gcc/c/ChangeLog:
	PR 87091
	* c-decl.c (implicitly_declare): Update call to
	maybe_add_include_fixit to suggest overriding the location, as it
	is for a note.
	* c-objc-common.c (c_tree_printer): Update for conversion of
	show_caret_p to a tri-state.

gcc/cp/ChangeLog:
	PR 87091
	* decl.c (grokdeclarator): Update for conversion of show_caret_p
	to a tri-state.
	* error.c (cp_printer): Likewise.
	* name-lookup.c (maybe_suggest_missing_std_header): Update call to
	maybe_add_include_fixit to suggest overriding the location, as it
	is for a note.
	* parser.c (cp_parser_string_literal): Update for conversion of
	show_caret_p to a tri-state.
	(cp_parser_elaborated_type_specifier): Likewise.
	(set_and_check_decl_spec_loc): Likewise.
	* pt.c (listify): Update call to maybe_add_include_fixit to not
	override the location, as it is for an error.
	* rtti.c (typeid_ok_p): Likewise.

gcc/ChangeLog:
	PR 87091
	* diagnostic-show-locus.c (class layout_range): Update for
	conversion of show_caret_p to a tri-state.
	(layout_range::layout_range): Likewise.
	(make_range): Likewise.
	(layout::maybe_add_location_range): Likewise.
	(layout::should_print_annotation_line_p): Don't show annotation
	lines for ranges that are SHOW_LINES_WITHOUT_RANGE.
	(layout::get_state_at_point): Update for conversion of
	show_caret_p to a tri-state.  Bail out early for
	SHOW_LINES_WITHOUT_RANGE, so that such ranges don't affect
	underlining or source colorization.
	(gcc_rich_location::add_location_if_nearby): Update for conversion
	of show_caret_p to a tri-state.
	(selftest::test_one_liner_multiple_carets_and_ranges): Likewise.
	(selftest::test_one_liner_fixit_replace_equal_secondary_range):
	Likewise.
	(selftest::test_one_liner_labels): Likewise.
	* gcc-rich-location.c (gcc_rich_location::add_expr): Update for
	conversion of show_caret_p to a tri-state.
	* pretty-print.c (text_info::set_location): Likewise.
	* pretty-print.h (text_info::set_location): Likewise.
	* substring-locations.c (format_warning_n_va): Likewise.
	* tree-diagnostic.c (default_tree_printer): Likewise.
	* tree-pretty-print.c (newline_and_indent): Likewise.

gcc/fortran/ChangeLog:
	PR 87091
	* error.c (gfc_format_decoder): Update for conversion of
	show_caret_p to a tri-state.

gcc/testsuite/ChangeLog:
	PR 87091
	* gcc.dg/empty.h: New file.
	* gcc.dg/fixits-pr84852-1.c: Update for move of fix-it hint to
	top of file and removal of redundant second printing of warning
	location.
	* gcc.dg/fixits-pr84852-2.c: Likewise.
	* gcc.dg/missing-header-fixit-3.c: Likewise.
	* gcc.dg/missing-header-fixit-4.c: New test.
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c: Update for
	conversion of show_caret_p to a tri-state.

libcpp/ChangeLog:
	PR 87091
	* include/line-map.h (enum range_display_kind): New enum.
	(struct location_range): Replace field "m_show_caret_p" with
	"m_range_display_kind", converting from bool to the new enum.
	(class rich_location): Add example of line insertion fix-it hint.
	(rich_location::add_range): Convert param "show_caret_p" from bool
	to enum range_display_kind and rename to "range_display_kind",
	giving it a default of SHOW_RANGE_WITHOUT_CARET.
	(rich_location::set_range): Likewise, albeit without a default.
	* line-map.c (rich_location::rich_location): Update for conversion
	of show_caret_p to tri-state enum.
	(rich_location::add_range): Likewise.
	(rich_location::set_range): Likewise.

From-SVN: r263885

This patch tweaks how we print line-insertion fix-it hints, so that
the line before the insertion point is also printed, to give the user
more context on the proposed change.

For example, it changes:

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22: note: message
  +++ |+#include <vector>
   74 | #endif
  ....
   87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |                      ^~~

to:

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22: note: message
   73 | # include <debug/vector>
  +++ |+#include <vector>
   74 | #endif
  ....
   87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |                      ^~~

gcc/ChangeLog:
	PR 87091
	* diagnostic-show-locus.c (get_line_span_for_fixit_hint): Show the
	line above for line-insertion fix-it hints.
	(selftest::test_fixit_insert_containing_newline): Update the
	expected results, and add a test with line-numbering enabled.

gcc/testsuite/ChangeLog:
	PR 87091
	* g++.dg/pr85523.C: Extend expected output to show line
	before line-insertion fix-it hint.
	* gcc.dg/plugin/diagnostic-test-show-locus-bw-line-numbers.c
	(test_fixit_insert_newline): Add previous line to expected output.
	* gcc.dg/plugin/diagnostic-test-show-locus-bw.c: Likewise.
	* gcc.dg/plugin/diagnostic-test-show-locus-color.c: Likewise.

From-SVN: r263884

2018-08-27  Martin Liska  <mliska@suse.cz>

        PR sanitizer/86962
	* sanopt.c (sanitize_rewrite_addressable_params): Ignore
        params with DECL_HAS_VALUE_EXPR_P.
2018-08-27  Martin Liska  <mliska@suse.cz>

        PR sanitizer/86962
	* gcc.dg/asan/pr86962.c: New test.

From-SVN: r263882

2018-08-27  Martin Liska  <mliska@suse.cz>

	* config/i386/i386.c (ix86_expand_set_or_movmem): Dump
        selected expansion strategy.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* gcc.dg/tree-prof/val-prof-10.c: New test.

From-SVN: r263881

2018-08-27  Martin Liska  <mliska@suse.cz>

	* builtins.h (is_builtin_fn): Remove and fndecl_built_in_p.
	* builtins.c (is_builtin_fn): Likewise.
	* attribs.c (diag_attr_exclusions): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
	(builtin_mathfn_code): Likewise.
	(fold_builtin_expect): Likewise.
	(fold_call_expr): Likewise.
	(fold_builtin_call_array): Likewise.
	(fold_call_stmt): Likewise.
	(set_builtin_user_assembler_name): Likewise.
	(is_simple_builtin): Likewise.
	* calls.c (gimple_alloca_call_p): Likewise.
	(maybe_warn_nonstring_arg): Likewise.
	* cfgexpand.c (expand_call_stmt): Likewise.
	* cgraph.c (cgraph_update_edges_for_call_stmt_node): Likewise.
	(cgraph_edge::verify_corresponds_to_fndecl): Likewise.
	(cgraph_node::verify_node): Likewise.
	* cgraphclones.c (build_function_decl_skip_args): Likewise.
	(cgraph_node::create_clone): Likewise.
	* config/arm/arm.c (arm_insert_attributes): Likewise.
	* config/i386/i386.c (ix86_gimple_fold_builtin): Likewise.
	* dse.c (scan_insn): Likewise.
	* expr.c (expand_expr_real_1): Likewise.
	* fold-const.c (operand_equal_p): Likewise.
	(fold_binary_loc): Likewise.
	* gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise.
	* gimple-low.c (lower_stmt): Likewise.
	* gimple-pretty-print.c (dump_gimple_call): Likewise.
	* gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Likewise.
	* gimple.c (gimple_build_call_from_tree): Likewise.
	(gimple_call_builtin_p): Likewise.
	(gimple_call_combined_fn): Likewise.
	* gimplify.c (gimplify_call_expr): Likewise.
	(gimple_boolify): Likewise.
	(gimplify_modify_expr): Likewise.
	(gimplify_addr_expr): Likewise.
	* hsa-gen.c (gen_hsa_insns_for_call): Likewise.
	* ipa-cp.c (determine_versionability): Likewise.
	* ipa-fnsummary.c (compute_fn_summary): Likewise.
	* ipa-param-manipulation.c (ipa_modify_formal_parameters): Likewise.
	* ipa-split.c (visit_bb): Likewise.
	(split_function): Likewise.
	* ipa-visibility.c (cgraph_externally_visible_p): Likewise.
	* lto-cgraph.c (input_node): Likewise.
	* lto-streamer-out.c (write_symbol): Likewise.
	* omp-low.c (setjmp_or_longjmp_p): Likewise.
	(lower_omp_1): Likewise.
	* predict.c (strip_predict_hints): Likewise.
	* print-tree.c (print_node): Likewise.
	* symtab.c (symtab_node::output_to_lto_symbol_table_p): Likewise.
	* trans-mem.c (is_tm_irrevocable): Likewise.
	(is_tm_load): Likewise.
	(is_tm_simple_load): Likewise.
	(is_tm_store): Likewise.
	(is_tm_simple_store): Likewise.
	(is_tm_abort): Likewise.
	(tm_region_init_1): Likewise.
	* tree-call-cdce.c (gen_shrink_wrap_conditions): Likewise.
	* tree-cfg.c (verify_gimple_call): Likewise.
	(move_stmt_r): Likewise.
	(stmt_can_terminate_bb_p): Likewise.
	* tree-eh.c (lower_eh_constructs_2): Likewise.
	* tree-if-conv.c (if_convertible_stmt_p): Likewise.
	* tree-inline.c (remap_gimple_stmt): Likewise.
	(copy_bb): Likewise.
	(estimate_num_insns): Likewise.
	(fold_marked_statements): Likewise.
	* tree-sra.c (scan_function): Likewise.
	* tree-ssa-ccp.c (surely_varying_stmt_p): Likewise.
	(optimize_stack_restore): Likewise.
	(pass_fold_builtins::execute): Likewise.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
	(mark_all_reaching_defs_necessary_1): Likewise.
	* tree-ssa-dom.c (dom_opt_dom_walker::optimize_stmt): Likewise.
	* tree-ssa-forwprop.c (simplify_builtin_call): Likewise.
	(pass_forwprop::execute): Likewise.
	* tree-ssa-loop-im.c (stmt_cost): Likewise.
	* tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise.
	* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Likewise.
	* tree-ssa-strlen.c (get_string_length): Likewise.
	* tree-ssa-structalias.c (handle_lhs_call): Likewise.
	(find_func_aliases_for_call): Likewise.
	* tree-ssa-ter.c (find_replaceable_in_bb): Likewise.
	* tree-stdarg.c (optimize_va_list_gpr_fpr_size): Likewise.
	* tree-tailcall.c (find_tail_calls): Likewise.
	* tree.c (need_assembler_name_p): Likewise.
	(free_lang_data_in_decl): Likewise.
	(get_call_combined_fn): Likewise.
	* ubsan.c (is_ubsan_builtin_p): Likewise.
	* varasm.c (incorporeal_function_p): Likewise.
	* tree.h (DECL_BUILT_IN): Remove and replace with
        fndecl_built_in_p.
	(DECL_BUILT_IN_P): Transfort to fndecl_built_in_p.
	(fndecl_built_in_p): New.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* gcc-interface/decl.c (update_profile): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
	* gcc-interface/gigi.h (call_is_atomic_load): Likewise.
	* gcc-interface/utils.c (gnat_pushdecl): Likewise.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* c-common.c (check_function_restrict): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
	(check_builtin_function_arguments): Likewise.
	(reject_gcc_builtin): Likewise.
	* c-warn.c (sizeof_pointer_memaccess_warning): Likewise.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* c-decl.c (locate_old_decl): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
	(diagnose_mismatched_decls): Likewise.
	(merge_decls): Likewise.
	(warn_if_shadowing): Likewise.
	(pushdecl): Likewise.
	(implicitly_declare): Likewise.
	* c-parser.c (c_parser_postfix_expression_after_primary): Likewise.
	* c-tree.h (C_DECL_ISNT_PROTOTYPE): Likewise.
	* c-typeck.c (build_function_call_vec): Likewise.
	(convert_arguments): Likewise.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* call.c (build_call_a): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
	(build_cxx_call): Likewise.
	* constexpr.c (constexpr_fn_retval): Likewise.
	(cxx_eval_builtin_function_call): Likewise.
	(cxx_eval_call_expression): Likewise.
	(potential_constant_expression_1): Likewise.
	* cp-gimplify.c (cp_gimplify_expr): Likewise.
	(cp_fold): Likewise.
	* decl.c (decls_match): Likewise.
	(validate_constexpr_redeclaration): Likewise.
	(duplicate_decls): Likewise.
	(make_rtl_for_nonlocal_decl): Likewise.
	* name-lookup.c (consider_binding_level): Likewise.
	(cp_emit_debug_info_for_using): Likewise.
	* semantics.c (finish_call_expr): Likewise.
	* tree.c (builtin_valid_in_constant_expr_p): Likewise.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* go-gcc.cc (Gcc_backend::call_expression): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* lto-lang.c (handle_const_attribute): Use new function
        fndecl_built_in_p and remove check for FUNCTION_DECL if
        possible.
	* lto-symtab.c (lto_symtab_merge_p): Likewise.
	(lto_symtab_merge_decls_1): Likewise.
	(lto_symtab_merge_symbols): Likewise.
	* lto.c (lto_maybe_register_decl): Likewise.
	(read_cgraph_and_symbols): Likewise.

From-SVN: r263880

2018-08-27  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/86847
	* tree-switch-conversion.c (switch_decision_tree::dump_case_nodes):
        Dump also subtree probability.
	(switch_decision_tree::do_jump_if_equal): New function.
	(switch_decision_tree::emit_case_nodes): Handle special
        situations in balanced tree that can be emitted much simpler.
        Fix calculation of probabilities that happen in tree expansion.
	* tree-switch-conversion.h (struct cluster): Add
        is_single_value_p.
	(struct simple_cluster): Likewise.
	(struct case_tree_node): Add new function has_child.
	(do_jump_if_equal): New.
2018-08-27  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/86847
	* gcc.dg/tree-ssa/switch-3.c: New test.
	* gcc.dg/tree-ssa/vrp105.c: Remove.

From-SVN: r263879

2018-08-27  Martin Liska  <mliska@suse.cz>

	* tree-switch-conversion.c (bit_test_cluster::find_bit_tests):
        Add new argument to bit_test_cluster constructor.
	(bit_test_cluster::emit): Set bits really number of values
        handlel by a test.
	(bit_test_cluster::hoist_edge_and_branch_if_true): Add
        probability argument.
	* tree-switch-conversion.h (struct bit_test_cluster):
        Add m_handles_entire_switch.
2018-08-27  Martin Liska  <mliska@suse.cz>

	* gcc.dg/tree-ssa/switch-2.c: New test.

From-SVN: r263878

2018-08-27  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/86702
	* tree-switch-conversion.c (jump_table_cluster::emit):
        Make probabilities even for values in jump table
        according to number of cases handled.
	(switch_decision_tree::compute_cases_per_edge): Pass
        argument to reset_out_edges_aux function.
	(switch_decision_tree::analyze_switch_statement): Likewise.
	* tree-switch-conversion.h (switch_decision_tree::reset_out_edges_aux):
        Make it static.

From-SVN: r263877

2018-08-27  Martin Liska  <mliska@suse.cz>

	* cfgexpand.c (expand_asm_stmt): Use label_to_block and pass
        cfun argument explicitly.
	* gimple-pretty-print.c (dump_gimple_switch): Likewise.
	* hsa-gen.c (gen_hsa_insns_for_switch_stmt): Use new
        function gimple_switch_default_bb.
	(convert_switch_statements):
	(expand_builtins):
	* ipa-fnsummary.c (set_switch_stmt_execution_predicate):
	* stmt.c (label_to_block_fn): Use label_to_block and pass
        cfun argument explicitly and use gimple_switch_label_bb.
	(expand_case): Likewise.
	* tree-cfg.c (lower_phi_internal_fn): Use label_to_block and pass
        cfun argument explicitly. Likewise.
	(make_edges_bb): Likewise.
	(make_cond_expr_edges): Likewise.
	(get_cases_for_edge): Likewise.
	(make_gimple_switch_edges): Likewise.
	(label_to_block_fn): Likewise.
	(label_to_block): Likewise.
	(make_goto_expr_edges): Likewise.
	(make_gimple_asm_edges): Likewise.
	(main_block_label): Likewise.
	(group_case_labels_stmt): Likewise.
	(find_taken_edge_computed_goto): Likewise.
	(find_taken_edge_switch_expr): Likewise.
	(gimple_verify_flow_info): Likewise.
	(gimple_redirect_edge_and_branch): Likewise.
	(gimple_switch_label_bb): New function.
	(gimple_switch_default_bb): Likewise.
	(gimple_switch_edge): Likewise.
	(gimple_switch_default_edge): Likewise.
	* tree-cfg.h (label_to_block_fn): Remove and replace ...
	(label_to_block): ... with this.
	(gimple_switch_label_bb): New.
	(gimple_switch_default_bb): Likewise.
	(gimple_switch_edge): Likewise.
	(gimple_switch_default_edge): Likewise.
	* tree-cfgcleanup.c (convert_single_case_switch): Use
        new gimple functions and pass new argument to label_to_block.
	(cleanup_control_flow_bb):
	* tree-eh.c (make_eh_dispatch_edges): Use label_to_block and pass
        cfun argument explicitly.
	(make_eh_edges): Likewise.
	(redirect_eh_dispatch_edge): Likewise.
	(lower_resx): Likewise.
	(lower_eh_dispatch): Likewise.
	(maybe_remove_unreachable_handlers): Likewise.
	(unsplit_eh): Likewise.
	(cleanup_empty_eh): Likewise.
	(verify_eh_edges): Likewise.
	(verify_eh_dispatch_edge): Likewise.
	* tree-ssa-dom.c (record_edge_info): Likewise.
	* tree-ssa-forwprop.c (simplify_gimple_switch_label_vec): Likewise.
	* tree-ssa-threadedge.c (thread_around_empty_blocks): Likewise.
	(thread_through_normal_block): Likewise.
	* tree-ssa-uncprop.c (associate_equivalences_with_edges): Likewise.
	* tree-ssa-uninit.c (convert_control_dep_chain_into_preds):
	* tree-switch-conversion.c (switch_conversion::collect): Use new
        gimple functions.
	(switch_conversion::check_final_bb): Likewise.
	(switch_conversion::gather_default_values): Pass new argument
        to label_to_block.
	(switch_conversion::build_constructors): Likewise.
	(switch_decision_tree::compute_cases_per_edge): Use new
        gimple_switch_edge function.
	(switch_decision_tree::analyze_switch_statement): Pass new argument
        to label_to_block.
	(switch_decision_tree::try_switch_expansion): Use
        gimple_switch_default_edge.
	* tree-vrp.c (find_switch_asserts): Pass new argument
        to label_to_block.
	* vr-values.c (vr_values::vrp_visit_switch_stmt): Likewise.
	(vr_values::simplify_switch_using_ranges): Likewise.

From-SVN: r263876

2018-08-27  Richard Biener  <rguenther@suse.de>

	* cfganal.h (rev_post_order_and_mark_dfs_back_seme): Declare.
	* cfganal.c (rev_post_order_and_mark_dfs_back_seme): New function.

	* tree-ssa-sccvn.h (struct vn_pval): New structure.
	(struct vn_nary_op_s): Add unwind_to member.  Add
	predicated_values flag and put result into a union together
	with a linked list of vn_pval.
	(struct vn_ssa_aux): Add name member to make maintaining
	a map of SSA name to vn_ssa_aux possible.  Remove no longer
	needed info, dfsnum, low, visited, on_sccstack, use_processed
	and range_info_anti_range_p members.
	(run_scc_vn, vn_eliminate, free_scc_vn, vn_valueize): Remove.
	(do_rpo_vn, run_rpo_vn, eliminate_with_rpo_vn, free_rpo_vn):
	New functions.
	(vn_valueize): New global.
	(vn_context_bb): Likewise.
	(VN_INFO_RANGE_INFO, VN_INFO_ANTI_RANGE_P, VN_INFO_RANGE_TYPE,
	VN_INFO_PTR_INFO): Remove.
	* tree-ssa-sccvn.c: ... (rewrite)
	(pass_fre::execute): For -O2+ initialize loops and run
	RPO VN in optimistic mode (iterating).  For -O1 and -Og
	run RPO VN in non-optimistic mode.
	* params.def (PARAM_SCCVN_MAX_SCC_SIZE): Remove.
	(PARAM_RPO_VN_MAX_LOOP_DEPTH): Add.
	* doc/invoke.texi (sccvn-max-scc-size): Remove.
	(rpo-vn-max-loop-depth): Document.
	* tree-ssa-alias.c (walk_non_aliased_vuses): Stop walking
	when valuezing the VUSE signals we walked out of the region.
	* tree-ssa-pre.c (phi_translate_1): Ignore predicated values.
	(phi_translate): Set VN context block to use for availability
	lookup.
	(compute_avail): Likewise.
	(pre_valueize): New function.
	(pass_pre::execute): Adjust to the RPO VN API.

	* tree-ssa-loop-ivcanon.c: Include tree-ssa-sccvn.h.
	(propagate_constants_for_unrolling): Remove.
	(tree_unroll_loops_completely): Perform value-numbering
	on the unrolled bodies loop parent.

	* g++.dg/torture/20180705-1.C: New testcase.
	* gcc.dg/tree-ssa/ssa-fre-67.c: Likewise.
	* gcc.dg/tree-ssa/ssa-ccp-14.c: Scan FRE dump.
	* gcc.dg/tree-ssa/ssa-fre-46.c: Use -O2.
	* gcc.dg/tree-ssa/vrp92.c: Disable FRE.
	* gcc.dg/pr83666.c: Drop --param=sccvn-max-scc-size option.
	* gcc.dg/pr85195.c: Likewise.
	* gcc.dg/pr85467.c: Likewise.
	* gcc.dg/torture/pr81790.c: Likewise.

	* gfortran.dg/reassoc_4.f: Change max-completely-peeled-insns
	param to current default.

From-SVN: r263875

2018-08-27  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (compute_antic): Re-use inverted postorder
	for partial antic compute.

From-SVN: r263874

	PR rtl-optimization/87065
	* combine.c (simplify_if_then_else): Formatting fix.
	(if_then_else_cond): Guard MULT optimization with SCALAR_INT_MODE_P
	check.
	(known_cond): Don't return const_true_rtx for vector modes.  Use
	CONST0_RTX instead of const0_rtx.  Formatting fixes.

	* gcc.target/i386/pr87065.c: New test.

From-SVN: r263872

2018-08-27  Martin Liska  <mliska@suse.cz>

        PR gcov-profile/87069
	* gcov.c (process_file): Record files already processed
        and warn about a file being processed multiple times.

From-SVN: r263871

2018-08-27  Martin Liska  <mliska@suse.cz>

        PR driver/83193
	* config/aarch64/aarch64.c (aarch64_override_options_internal):
        Set default values for x_aarch64_*_string strings.
	* config/aarch64/aarch64.opt: Remove --{march,mcpu,mtune}==
        prefix.  For -mabi do not print '=ABI' in help and use
        <option_value> format for -msve-vector-bits and -moverride
        options.

From-SVN: r263870

	* config/mips/frame-header-opt.c: Include "backend.h" rather than
	"cfg.h"

From-SVN: r263869

From-SVN: r263867

	* c.opt (Wredundant-move): New option.

	* typeck.c (treat_lvalue_as_rvalue_p): New function.
	(maybe_warn_pessimizing_move): Call convert_from_reference.
	Warn about redundant moves.

	* doc/invoke.texi: Document -Wredundant-move.

	* g++.dg/cpp0x/Wredundant-move1.C: New test.
	* g++.dg/cpp0x/Wredundant-move2.C: New test.
	* g++.dg/cpp0x/Wredundant-move3.C: New test.
	* g++.dg/cpp0x/Wredundant-move4.C: New test.

From-SVN: r263863

	PR c++/87080
	* typeck.c (maybe_warn_pessimizing_move): Do nothing in a template.

	* g++.dg/cpp0x/Wpessimizing-move5.C: New test.

From-SVN: r263862

From-SVN: r263860

2018-08-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/86704
	* m4/matmul_internal.m4: Correct calculation of needed buffer size
	for arrays of shape (1,n).
	* generated/matmul_c10.c: Regenerated
	* generated/matmul_c16.c: Regenerated
	* generated/matmul_c4.c: Regenerated
	* generated/matmul_c8.c: Regenerated
	* generated/matmul_i1.c: Regenerated
	* generated/matmul_i16.c: Regenerated
	* generated/matmul_i2.c: Regenerated
	* generated/matmul_i4.c: Regenerated
	* generated/matmul_i8.c: Regenerated
	* generated/matmul_r10.c: Regenerated
	* generated/matmul_r16.c: Regenerated
	* generated/matmul_r4.c: Regenerated
	* generated/matmul_r8.c: Regenerated
	* generated/matmulavx128_c10.c: Regenerated
	* generated/matmulavx128_c16.c: Regenerated
	* generated/matmulavx128_c4.c: Regenerated
	* generated/matmulavx128_c8.c: Regenerated
	* generated/matmulavx128_i1.c: Regenerated
	* generated/matmulavx128_i16.c: Regenerated
	* generated/matmulavx128_i2.c: Regenerated
	* generated/matmulavx128_i4.c: Regenerated
	* generated/matmulavx128_i8.c: Regenerated
	* generated/matmulavx128_r10.c: Regenerated
	* generated/matmulavx128_r16.c: Regenerated
	* generated/matmulavx128_r4.c: Regenerated
	* generated/matmulavx128_r8.c: Regenerated

2018-08-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/86704
	* gfortran.dg/matmul_19.f90: New test.

From-SVN: r263856