2019-10-16  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/91088
        * doc/invoke.texi (ipa-max-param-expr-ops): Document new option.
        * params.def (PARAM_IPA_MAX_PARAM_EXPR_OPS): New.
        * ipa-predicat.h (struct expr_eval_op): New struct.
        (expr_eval_ops): New typedef.
        (struct condition): Add type and param_ops fields, remove size field.
        (add_condition): Replace size parameter with type parameter, add
        param_ops parameter.
        * ipa-predicat.c (expr_eval_ops_equal_p): New function.
        (predicate::add_clause): Add comparisons on type and param_ops.
        (dump_condition): Add debug dump for param_ops.
        (remap_after_inlining): Adjust call arguments to add_condition.
        (add_condition): Replace size parameter with type parameter, add
        param_ops parameter. Unshare constant value used in conditions.
        * ipa-fnsummary.c (evaluate_conditions_for_known_args): Fold
        parameter expressions using param_ops.
        (decompose_param_expr):  New function.
        (set_cond_stmt_execution_predicate): Use call to decompose_param_expr
        to replace call to unmodified_parm_or_parm_agg_item.
        (set_switch_stmt_execution_predicate): Likewise.
        (will_be_nonconstant_expr_predicate): Likewise. Replace usage of size
        with type.
        (inline_read_section): Read param_ops from summary stream.
        (ipa_fn_summary_write): Write param_ops to summary stream.

2019-10-16  Feng Xue  <fxue@os.amperecomputing.com>

        PR ipa/91088
        * gcc.dg/ipa/pr91088.c: New test.
        * gcc.dg/ipa/pr91089.c: Add sub-test for range analysis.
        * g++.dg/tree-ssa/ivopts-3.C: Force a function to be noinline.

From-SVN: r277054

	* src/c++11/debug.cc (print_field): Replace constness_names <unknown>
	entry with <unknown constness>. Replace state_names <unknown> entry with
	<unknown state>.

From-SVN: r277049

From-SVN: r277033

As PR92107 shows, genattrtab doesn't parenthesize expressions correctly
(or at all, even).  This fixes it.


	PR rtl-optimization/92107
	* genattrtab.c (write_attr_value) <do_operator>: Parenthesize the
	expression written.

From-SVN: r277023

	* config/pa/fptr.c (_dl_read_access_allowed): Change argument to
	unsigned int.  Adjust callers.
	(__canonicalize_funcptr_for_compare): Change plabel type to volatile
	unsigned int *.  Load relocation offset before function pointer.
	Add barrier to ensure ordering.

From-SVN: r277015

2019-10-15  Andrew Pinski  <apinski@marvell.com>

        * gcc.c-torture/compile/20191015-1.c: New test.
        * gcc.c-torture/compile/20191015-2.c: New test.

From-SVN: r277011

This updates the description of the support for fix and continue
debugging.

gcc/ChangeLog:

2019-10-15  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c: Update description of fix and continue.

From-SVN: r277010

The use of default_binds_local_p had got out of sync with the varasm
changes, this restores the call to be direct.  In practice, we add some
further tests to determine local binding - but this callback is used for
the initial assessments made by default_encode_section_info().

gcc/ChangeLog:

2019-10-15  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c (darwin_binds_local_p): Update to call
	default_binds_local_p_3 () directly. amend comments.

From-SVN: r277009

gcc/testsuite/ChangeLog:
	* gcc.dg/Wstringop-overflow-17.c: Expect an additional warning.

From-SVN: r277008

2019-10-15  Richard Biener  <rguenther@suse.de>

	* lto-streamer-out.c (lto_variably_modified_type_p): New.
	(tree_is_indexable): Use it.
	* tree-streamer-out.c (pack_ts_type_common_value_fields):
	Stream variably_modified_type_p as TYPE_LANG_FLAG_0.
	* tree-streamer-in.c (unpack_ts_type_common_value_fields): Likewise.

From-SVN: r277005

        gcc/fortran
        PR fortran/65438
        * openmp.c (check_array_not_assumed): Remove pointer check.


Co-Authored-By: Tobias Burnus <tobias@codesourcery.com>

From-SVN: r277000

2019-10-15  Bill Schmidt  <wschmidt@linux.ibm.com>

	PR target/92093
	* gcc.target/powerpc/pr91275.c: Fix type and endian issues.

From-SVN: r276999

https://gcc.gnu.org/ml/gcc-patches/2019-10/msg01083.html
This patch, from the modules branch, breaks out function cloning from the
method vector updating. We have a new function, build_clones,
which does the building, returning a count of the number of clones
(2 or 3). clone_function_decl separately adds them to the method
vector, if they should be added. I suppose this could have used
FOR_EVERY_CLONE, but I went with the counting scheme.

	* class.c (build_clones): Break out of clone_function_decl.  Just
	build the clones.
	(clone_function_decl): Call build_clones, then maybe add them to
	the method vector.

From-SVN: r276998

2019-10-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.md (zero_extendqipsi2): New.
	(zero_extendqisi2): Optimize case where src register and base dst
	register are the same.
	(zero_extendhipsi2): Don't use 430X insn for rYs->r case.
	(zero_extendpsisi2): Optimize r->m case.
	Add unnamed insn patterns to catch insns combine searches for when
	optimizing pointer manipulation.

From-SVN: r276997

2019-10-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.md: Group zero_extend* insns together.

From-SVN: r276996

2019-10-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/constraints.md: Allow post_inc operand for "Ya"
	constraint.
	* config/msp430/msp430.c (msp430_legitimate_address_p): Handle
	POST_INC.
	(msp430_subreg): Likewise.
	(msp430_split_addsi): Likewise.
	(msp430_print_operand_addr): Likewise.
	* config/msp430/msp430.h (HAVE_POST_INCREMENT): Define.
	(USE_STORE_POST_INCREMENT): Define.
	* config/msp430/msp430.md: Use the msp430_general_dst_operand or
	msp430_general_dst_nonv_operand predicates for the lvalues of insns.
	* config/msp430/predicates.md (msp430_nonpostinc_operand): New.
	(msp430_general_dst_operand): New.
	(msp430_general_dst_nonv_operand): New.
	(msp430_nonsubreg_operand): Remove.
	(msp430_nonsubreg_dst_operand): New.
	(msp430_nonsubreg_or_imm_operand): Allow reg or mem operands in place
	of defunct msp430_nonsubreg_operand.
	(msp430_nonsubregnonpostinc_or_imm_operand): New.

From-SVN: r276995

https://gcc.gnu.org/ml/gcc-patches/2019-10/msg01080.html
looking up a line map takes a non-constant line_maps object, which is confusing.
This makes the caching fields mutable, so permits a constant object, as one might expect for a lookup.

	* include/line-map.h (struct maps_info_ordinary): Make cache
	mutable.
	(struct maps_info_macro): Likewise.
	(LINEMAPS_CACHE): Remove non-ref accessor. Constify ref accessor.
	(LINEMAPS_ORDINARY_CACHE, LINEMAPS_MACRO_CACHE): Likewise.
	(LINEMAPS_ORDINARY_MAP_AT, LINEMAPS_MACRO_MAP_AT): Use
	LINEMAPS_USED and LINEMAPS_MAP_AT.
	(linemap_lookup): Constify line_map arg.
	linemap.c (linemap_ordinary_map_lookup, linemap_macro_map_lookup):
	Constify line_map arg.

From-SVN: r276994

2019-10-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91929
	* tree-ssa-pre.c (pre_expr_d::loc): New member.
	(get_or_alloc_expr_for_name): Initialize it.
	(get_or_alloc_expr_for_constant): Likewise.
	(phi_translate_1): Copy it.
	(create_expression_by_pieces): Use the original location
	of the expression for the inserted stmt.
	(compute_avail): Record the location of the stmt for the
	expressions created.

From-SVN: r276993

https://gcc.gnu.org/ml/gcc-patches/2019-10/msg01069.html
build_clone is recursive when applied to a template, but I found the control flow confusing. this makes it clearer and moves some decls to their initializers.

	* class.c (build_clone): Refactor to clarify recursiveness.

From-SVN: r276992

2019-10-15  Richard Biener  <rguenther@suse.de>

	PR testsuite/92048
	* gcc.dg/vect/fast-math-vect-pr29925.c: Avoid unrolling of
	inner loop.

From-SVN: r276991

r273783 introduced an unchecked use of tree_to_uhwi.  This is
tested by the SVE ACLE patches, but could potentially trigger
in non-SVE cases too.

2019-10-15  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-ssa-strlen.c (count_nonzero_bytes): Check tree_fits_uhwi_p
	before using tree_to_uhwi.

From-SVN: r276990

gcc/ChangeLog:

2019-10-15  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.md: Run %a0:DI splitters only after reload.

gcc/testsuite/ChangeLog:

2019-10-15  Ilya Leoshkevich  <iii@linux.ibm.com>

	* gcc.target/s390/load-thread-pointer-once.c: New test.

From-SVN: r276989

Makefile.rtl (a-except.o): Put -O1 earlier so that it can be overriden if needed by other variables.

	* Makefile.rtl (a-except.o): Put -O1 earlier so that it can be
	overriden if needed by other variables.

From-SVN: r276988

2019-10-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92094
	* tree-vect-loop.c (vectorizable_reduction): For nested cycles
	do not adjust the reduction definition def type.
	* tree-vect-stmts.c (vect_transform_stmt): Verify the scalar stmt
	defines the latch argument of the PHI.

	* gfortran.dg/pr92094.f90: New testcase.

From-SVN: r276987

gcc/
	* config/i386/avx512fintrin.h (_mm_mask_roundscale_ss,
	_mm_maskz_roundscale_ss, _mm_maskz_roundscale_round_ss,
	_mm_maskz_roundscale_round_ss, _mm_mask_roundscale_sd,
	_mm_maskz_roundscale_sd, _mm_mask_roundscale_round_sd,
	_mm_maskz_roundscale_round_sd): New intrinsics.
	(_mm_roundscale_ss, _mm_roundscale_round_ss): Use
	__builtin_ia32_rndscales?_mask_round builtins instead of
	__builtin_ia32_rndscales?_round.
	* config/i386/i386-builtin.def (__builtin_ia32_rndscaless_round,
	__builtin_ia32_rndscalesd_round): Remove.
	(__builtin_ia32_rndscaless_mask_round,
	__builtin_ia32_rndscalesd_mask_round): New intrinsics.
	* config/i386/sse.md
	(avx512f_rndscale<mode><round_saeonly_name>): Renamed to ...
	(avx512f_rndscale<mode><mask_scalar_name><round_saeonly_scalar_name>):
	 ... this, adjust and add subst atrributes to make it maskable.

gcc/testsuite/
	* gcc.target/i386/avx512f-vrndscaless-1.c: Add scan-assembler-times
	directives for newly expected instructions.
	* gcc.target/i386/avx512f-vrndscalesd-1.c: Likewise.
	* gcc.target/i386/avx512f-vrndscaless-2.c
	(avx512f_test): Add tests for new intrinsics.
	* gcc.target/i386/avx512f-vrndscalesd-2.c: Likewise.
	* gcc.target/i386/avx-1.c (__builtin_ia32_rndscalefss_round,
	__builtin_ia32_rndscalefsd_round): Remove.
	(__builtin_ia32_rndscalefss_mask_round,
	__builtin_ia32_rndscalefsd_mask_round): Define.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.

From-SVN: r276986

re PR middle-end/92046 (Command line options (that are per-functions) are affecting --params which are global.)

2019-10-15  Richard Biener  <rguenther@suse.de>

	PR middle-end/92046
	* common.opt (fallow-store-data-races): New.
	* params.def (PARAM_ALLOW_STORE_DATA_RACES): Remove.
	* params.h (ALLOW_STORE_DATA_RACES): Likewise.
	* doc/invoke.texi (fallow-store-data-races): Document.
	(--param allow-store-data-races): Remove docs.
	* opts.c (default_options_table): Enable -fallow-store-data-races
	at -Ofast.
	(default_options_optimization): Do not enable --param
	allow-store-data-races at -Ofast.
	* tree-if-conv.c (ifcvt_memrefs_wont_trap): Use flag_store_data_races
	instead of PARAM_ALLOW_STORE_DATA_RACES.
	* tree-ssa-loop-im.c (execute_sm): Likewise.

	* c-c++-common/cxxbitfields-3.c: Adjust.
	* c-c++-common/cxxbitfields-6.c: Likewise.
	* c-c++-common/simulate-thread/bitfields-1.c: Likewise.
	* c-c++-common/simulate-thread/bitfields-2.c: Likewise.
	* c-c++-common/simulate-thread/bitfields-3.c: Likewise.
	* c-c++-common/simulate-thread/bitfields-4.c: Likewise.
	* g++.dg/simulate-thread/bitfields-2.C: Likewise.
	* g++.dg/simulate-thread/bitfields.C: Likewise.
	* gcc.dg/lto/pr52097_0.c: Likewise.
	* gcc.dg/simulate-thread/speculative-store-2.c: Likewise.
	* gcc.dg/simulate-thread/speculative-store-3.c: Likewise.
	* gcc.dg/simulate-thread/speculative-store-4.c: Likewise.
	* gcc.dg/simulate-thread/speculative-store.c: Likewise.
	* gcc.dg/tree-ssa/20050314-1.c: Likewise.

From-SVN: r276985

re PR tree-optimization/92085 (ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at gimple-expr.c:86)

2019-10-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	PR tree-optimization/92085
	* tree-if-conv.c (ifcvt_local_dce): Call gsi_next in else clause,
	instead of calling it unconditionally after
	delete_dead_or_redundant_assignment and fix indentation.

testsuite/
	* gcc.dg/tree-ssa/pr92085-1.c: New test.
	* gcc.dg/tree-ssa/pr92085-2.c: Likewise.

From-SVN: r276984

2019-10-14  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/89943
	decl.c (gfc_match_function_decl): Ignore duplicate BIND(C) for function
	declaration in submodule.  Implement at check for F2018 C1550.
	(gfc_match_entry): Use temporary for locus, which allows removal of
	one gfc_error_now().
	(gfc_match_subroutine): Ignore duplicate BIND(C) for subroutine
	declaration in submodule.  Implement at check for F2018 C1550.

2019-10-14  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/89943
	* gfortran.dg/pr89943_1.f90: New test.
	* gfortran.dg/pr89943_2.f90: Ditto.
	* gfortran.dg/pr89943_3.f90: Ditto.
	* gfortran.dg/pr89943_4.f90: Ditto.

From-SVN: r276983

From-SVN: r276982

The C2x attribute syntax, [[ ]], appears in different places in the
syntax from GNU __attribute__, and, where they can appear in the same
place in the syntax, they do not always appertain to the same entity.
(For example, in "int func(void) ATTRS;", GNU attributes appertain to
the declaration but C2x attributes appertain to the function type.)

Thus, the C parser needs to handle the two kinds of attributes
separately, with each place in the syntax accepting whatever kinds of
attributes are appropriate there and applying them to the relevant
entities.  This patch prepares for this by renaming parser functions
relating to attributes to make clear they are specifically about GNU
attributes and renaming syntax productions likewise to avoid confusing
with the C2x attributes syntax productions.

Where comments refer to attributes, this has only be changed where it
is clear that in the context they are referring specifically to the
gnu-attributes syntax.  There may be other places that also end up
changing to refer to gnu-attributes as part of the C2x attributes
implementation, if more detailed examination of those places shows
they are also specific to gnu-attributes.  (I do not expect code
dealing with semantics of attributes outside of the parser to need to
change; as for C++, it will be possible to use existing attributes
inside [[]] with the gnu:: form of the attribute name.)

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

	* c-parser.c (c_parser_attribute_any_word): Rename to
	c_parser_gnu_attribute_any_word.  All callers changed.
	(c_parser_attribute): Rename to c_parser_gnu_attribute.  All
	callers changed.
	(c_parser_attributes): Rename to c_parser_gnu_attributes.  All
	callers changed.
	(c_parser_declaration_or_fndef, c_parser_declspecs)
	(c_parser_enum_specifier, c_parser_struct_or_union_specifier)
	(c_parser_struct_declaration, c_parser_declarator)
	(c_parser_gnu_attribute, c_parser_compound_statement)
	(c_parser_label, c_parser_statement, c_parser_objc_method_decl)
	(c_parser_transaction_attributes): Add "gnu-" prefix to names of
	attribute-related syntax productions.

From-SVN: r276978

gcc/ChangeLog:

2019-10-15  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

	* config/arm/vfp.md (fma<SDF:mode>4): Enable DF only when
	TARGET_VFP_DOUBLE.
	(*fmsub<SDF:mode>4): Likewise.
	*fnmsub<SDF:mode>4): Likewise.
	(*fnmadd<SDF:mode>4): Likewise.

From-SVN: r276977

    
    This patch is an addendum to the fix for issue 34577, which was not
    sufficiently general. During export data processing, when looking at
    the types of constants mentioned in inlinable function bodies, include
    both locally defined constants and constant imported from other
    packages.
    
    Testcase for this bug is in CL 201017.
    
    Fixes golang/go#34852.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/201018

From-SVN: r276976

re PR fortran/92004 (Rejection of different ranks for dummy array argument where actual argument is an element)

2019-10-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92004
	* array.c (expand_constructor): Set from_constructor on
	expression.
	* gfortran.h (gfc_symbol): Add maybe_array.
	(gfc_expr): Add from_constructor.
	* interface.c (maybe_dummy_array_arg): New function.
	(compare_parameter): If the formal argument is generated from a
	call, check the conditions where an array element could be
	passed to an array.  Adjust error message for assumed-shape
	or pointer array.  Use correct language for assumed shaped arrays.
	(gfc_get_formal_from_actual_arglist): Set maybe_array on the
	symbol if the actual argument is an array element fulfilling
	the conditions of 15.5.2.4.

2019-10-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92004
	* gfortran.dg/argument_checking_24.f90: New test.
	* gfortran.dg/abstract_type_6.f90: Add error message.
	* gfortran.dg/argument_checking_11.f90: Correct wording
	in error message.
	* gfortran.dg/argumeent_checking_13.f90: Likewise.
	* gfortran.dg/interface_40.f90: Add error message.

From-SVN: r276972

From-SVN: r276971

From-SVN: r276970

	* config/mips/mips.c (mips_cannot_force_const_mem): Reject
	vector constants.

	* gcc.target/mips/constant-spill.c: New test.

From-SVN: r276969

The testcase was crashing because lazily_declare_fn was failing to add a
defaulted constructor, because the implicit declaration was less constrained
than the inherited default constructor.  But when we have an inherited
constructor, we shouldn't be trying to declare a default constructor in the
first place, because it counts as "a user-declared constructor".  With that
fixed I needed to adjust a couple of inherited constructor testcases that
previously had been diagnosing the default constructor as deleted rather
than not declared.

	* name-lookup.c (do_class_using_decl): Set TYPE_HAS_USER_CONSTRUCTOR
	for inherited constructor.

From-SVN: r276968

Improve some comments, replace some asserts that have been in the code
base for years with checking-asserts.

gcc/ChangeLog:

2019-10-14  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.c: Use unsigned ints for the picbase label
	counters, initialise the vars explicitly.
	(update_pic_label_number_if_needed): Move a variable declaration
	to where it's needed.
	(machopic_output_function_base_name): Use a more strict checking
	assert, and and unsigned int for the picbase label counter.
	(machopic_get_function_picbase): Likewise.

From-SVN: r276967

    
    Patch from Andreas Krebbel.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/201038

From-SVN: r276964

re PR middle-end/92046 (Command line options (that are per-functions) are affecting --params which are global.)

2019-10-14  Richard Biener  <rguenther@suse.de>

	PR middle-end/92046
	* dse.c (scan_insn): Use param max_active_local_stores.
	(dse_step1): Get PARAM_MAX_DSE_ACTIVE_LOCAL_STORES and adjust
	based on optimization level.
	* loop-invariant.c (move_loop_invariants): Adjust
	LOOP_INVARIANT_MAX_BBS_IN_LOOP based on optimization level.
	* opts.c (default_options_optimization): Do not adjust
	PARAM_MAX_DSE_ACTIVE_LOCAL_STORES and
	LOOP_INVARIANT_MAX_BBS_IN_LOOP here.

From-SVN: r276963