2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Tom de Vries  <tom@codesourcery.com>

	include/
	* gomp-constants.h (GOMP_DEVICE_GCN): Define.
	(GOMP_VERSION_GCN): Define.

	libgomp/
	* Makefile.am (libgomp_la_SOURCES): Add oacc-target.c.
	* Makefile.in: Regenerate.
	* config.h.in (PLUGIN_GCN): Add new undef.
	* config/accel/openacc.f90 (acc_device_gcn): New parameter.
	* config/gcn/affinity-fmt.c: New file.
	* config/gcn/bar.c: New file.
	* config/gcn/bar.h: New file.
	* config/gcn/doacross.h: New file.
	* config/gcn/icv-device.c: New file.
	* config/gcn/oacc-target.c: New file.
	* config/gcn/simple-bar.h: New file.
	* config/gcn/target.c: New file.
	* config/gcn/task.c: New file.
	* config/gcn/team.c: New file.
	* config/gcn/time.c: New file.
	* configure.ac: Add amdgcn*-*-*.
	* configure: Regenerate.
	* configure.tgt: Add amdgcn*-*-*.
	* libgomp-plugin.h (offload_target_type): Add OFFLOAD_TARGET_TYPE_GCN.
	* libgomp.h (gcn_thrs): Add amdgcn variant.
	(set_gcn_thrs): Likewise.
	(gomp_thread): Likewise.
	* oacc-int.h (goacc_thread): Likewise.
	* oacc-target.c: New file.
	* openacc.f90 (acc_device_gcn): New parameter.
	* openacc.h (acc_device_t): Add acc_device_gcn.
	* team.c (gomp_free_pool_helper): Add amdgcn support.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>

From-SVN: r278135

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	libgomp/
	* libgomp-plugin.h (GOMP_OFFLOAD_openacc_async_construct): Add int
	parameter.
	* oacc-async.c (lookup_goacc_asyncqueue): Pass device number to the
	queue constructor.
	* oacc-host.c (host_openacc_async_construct): Add device parameter.
	* plugin/plugin-nvptx.c (GOMP_OFFLOAD_openacc_async_construct): Add
	device parameter.

Co-Authored-By: Julian Brown <julian@codesourcery.com>

From-SVN: r278134

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>
	    Kwok Cheung Yeung  <kcy@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Tom de Vries  <tom@codesourcery.com>

	gcc/
	* config/gcn/mkoffload.c: New file.
	* config/gcn/offload.h: New file.

From-SVN: r278133

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>

	libgomp/
	* configure.tgt (nvptx*-*-*): Add "accel" directory.
	* config/nvptx/libgomp-plugin.c: Move ...
	* config/accel/libgomp-plugin.c: ... to here.
	* config/nvptx/lock.c: Move ...
	* config/accel/lock.c: ... to here.
	* config/nvptx/mutex.c: Move ...
	* config/accel/mutex.c: ... to here.
	* config/nvptx/mutex.h: Move ...
	* config/accel/mutex.h: ... to here.
	* config/nvptx/oacc-async.c: Move ...
	* config/accel/oacc-async.c: ... to here.
	* config/nvptx/oacc-cuda.c: Move ...
	* config/accel/oacc-cuda.c: ... to here.
	* config/nvptx/oacc-host.c: Move ...
	* config/accel/oacc-host.c: ... to here.
	* config/nvptx/oacc-init.c: Move ...
	* config/accel/oacc-init.c: ... to here.
	* config/nvptx/oacc-mem.c: Move ...
	* config/accel/oacc-mem.c: ... to here.
	* config/nvptx/oacc-plugin.c: Move ...
	* config/accel/oacc-plugin.c: ... to here.
	* config/nvptx/omp-lock.h: Move ...
	* config/accel/omp-lock.h: ... to here.
	* config/nvptx/openacc.f90: Move ...
	* config/accel/openacc.f90: ... to here.
	* config/nvptx/pool.h: Move ...
	* config/accel/pool.h: ... to here.
	* config/nvptx/proc.c: Move ...
	* config/accel/proc.c: ... to here.
	* config/nvptx/ptrlock.c: Move ...
	* config/accel/ptrlock.c: ... to here.
	* config/nvptx/ptrlock.h: Move ...
	* config/accel/ptrlock.h: ... to here.
	* config/nvptx/sem.c: Move ...
	* config/accel/sem.c: ... to here.
	* config/nvptx/sem.h: Move ...
	* config/accel/sem.h: ... to here.
	* config/nvptx/thread-stacksize.h: Move ...
	* config/accel/thread-stacksize.h: ... to here.

From-SVN: r278132

2019-11-13  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/gcn/gcn-run.c (heap_region): New global variable.
	(struct hsa_runtime_fn_info): Add hsa_memory_assign_agent_fn.
	(init_hsa_runtime_functions): Initialize hsa_memory_assign_agent.
	(get_kernarg_region): Move contents to ....
	(get_memory_region): .... here.
	(get_heap_region): New function.
	(init_device): Initialize the heap_region.
	(device_malloc): Add region parameter.
	(struct kernargs): Move heap ....
	(heap): ... to global scope.
	(main): Allocate heap separate to kernargs.

From-SVN: r278131

	* c-ada-spec.c (get_underlying_decl): Do not look through typedefs.
	(dump_forward_type): Do not generate a declaration for function types.
	(dump_nested_type) <ARRAY_TYPE>: Do not generate a nested declaration
	of the component type if it is declared in another file.

From-SVN: r278129

        libgfortran/
        PR fortran/92470
        * runtime/ISO_Fortran_binding.c (CFI_establish): Set lower_bound to 0
        also for CFI_attribute_other.

        gcc/testsuite/
        PR fortran/92470
        * gfortran.dg/ISO_Fortran_binding_1.c (establish_c): Add assert for
        lower_bound == 0.

From-SVN: r278128

	* ipa-prop.c (ipa_print_node_jump_functions,
	ipa_print_node_params): Print info about missing summaries.

From-SVN: r278127

	* configure.tgt (riscv64-*-linux*): Enable build.

From-SVN: r278126

We didn't take the cost of generating loop masks into account, and so
tended to underestimate the cost of loops that need multiple masks.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-loop.c (vect_estimate_min_profitable_iters): Include
	the cost of generating loop masks.

gcc/testsuite/
	* gcc.target/aarch64/sve/mask_struct_store_3.c: Add
	-fno-vect-cost-model.
	* gcc.target/aarch64/sve/mask_struct_store_3_run.c: Likewise.
	* gcc.target/aarch64/sve/peel_ind_2.c: Likewise.
	* gcc.target/aarch64/sve/peel_ind_2_run.c: Likewise.
	* gcc.target/aarch64/sve/peel_ind_3.c: Likewise.
	* gcc.target/aarch64/sve/peel_ind_3_run.c: Likewise.

From-SVN: r278125

vect_analyze_loop_costing uses two profitability thresholds: a runtime
one and a static compile-time one.  The runtime one is simply the point
at which the vector loop is cheaper than the scalar loop, while the
static one also takes into account the cost of choosing between the
scalar and vector loops at runtime.  We compare this static cost against
the expected execution frequency to decide whether it's worth generating
any vector code at all.

However, we never reclaimed the cost of applying the runtime threshold
if it turned out that the vector code can always be used.  And we only
know whether that's true once we've calculated what the runtime
threshold would be.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vectorizer.h (vect_apply_runtime_profitability_check_p):
	New function.
	* tree-vect-loop-manip.c (vect_loop_versioning): Use it.
	* tree-vect-loop.c (vect_analyze_loop_2): Likewise.
	(vect_transform_loop): Likewise.
	(vect_analyze_loop_costing): Don't take the cost of versioning
	into account for the static profitability threshold if it turns
	out that no versioning is needed.

From-SVN: r278124

ipa.c (cgraph_build_static_cdtor): Pass optimization_default_node and target_option_default_node to get...

	* ipa.c (cgraph_build_static_cdtor): Pass optimization_default_node
	and target_option_default_node to get -fprofile-generate ctors working
	right with LTO.

From-SVN: r278123

vectorizable_assignment handles true SSA-to-SSA copies (which hopefully
we don't see in practice) and no-op conversions that are required
to maintain correct gimple, such as changes between signed and
unsigned types.  These cases shouldn't generate any code and so
shouldn't count against either the scalar or vector costs.

Later patches test this, but it seemed worth splitting out.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vectorizer.h (vect_nop_conversion_p): Declare.
	* tree-vect-stmts.c (vect_nop_conversion_p): New function.
	(vectorizable_assignment): Don't add a cost for nop conversions.
	* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
	Likewise.
	* tree-vect-slp.c (vect_bb_slp_scalar_cost): Likewise.

From-SVN: r278122

This patch makes two tweaks to vectorizable_conversion.  The first
is to use "modifier" to distinguish between promotion, demotion,
and neither promotion nor demotion, rather than using a code for
some cases and "modifier" for others.  The second is to take ncopies
into account for the promotion and demotion costs; previously we gave
multiple copies the same cost as a single copy.

Later patches test this, but it seemed worth splitting out.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-stmts.c (vect_model_promotion_demotion_cost): Take the
	number of ncopies as an additional argument.
	(vectorizable_conversion): Update call accordingly.  Use "modifier"
	to check whether a conversion is between vectors with the same
	numbers of units.

From-SVN: r278121

This is a like-for-like change at the moment, but is a prerequisite
for removing mode_for_int_vector.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/aarch64-sve-builtins-functions.h
	(unary_count::expand): Use aarch64_sve_int_mode instead of
	mode_for_int_vector.

From-SVN: r278120

One of the changes in r277281 was to make the typedef variant
handling in strip_typedefs pass the raw DECL_ORIGINAL_TYPE to the
recursive call, instead of applying TYPE_MAIN_VARIANT first.
This PR shows that that interacts badly with the implementation
of DR1558, because we then refuse to strip aliases with dependent
template parameters and trip:

  gcc_assert (!typedef_variant_p (result)
	      || ((flags & STF_USER_VISIBLE)
		  && !user_facing_original_type_p (result)));

Keeping the current behaviour but suppressing the ICE leads to a
duplicate error (the dg-bogus in the first test), so that didn't
seem like a good fix.

I assume keeping the alias should never actually be necessary for
DECL_ORIGINAL_TYPEs, because it will already have been checked
somewhere, even for implicit TYPE_DECLs.  This patch therefore
passes a flag to say that we can safely strip aliases with
dependent template parameters.

2019-11-13  Richard Sandiford  <richard.sandiford@arm.com>

gcc/cp/
	PR c++/92206
	* cp-tree.h (STF_STRIP_DEPENDENT): New constant.
	* tree.c (strip_typedefs): Add STF_STRIP_DEPENDENT to the flags
	when calling strip_typedefs recursively on a DECL_ORIGINAL_TYPE.
	Don't apply the fix for DR1558 in that case; allow aliases with
	dependent template parameters to be stripped instead.

gcc/testsuite/
	PR c++/92206
	* g++.dg/cpp0x/alias-decl-pr92206-1.C: New test.
	* g++.dg/cpp0x/alias-decl-pr92206-2.C: Likewise.
	* g++.dg/cpp0x/alias-decl-pr92206-3.C: Likewise.

From-SVN: r278119

2019-11-13  Martin Liska  <mliska@suse.cz>

	* opts.c: Update comment about OPT_LEVELS_2_PLUS_SPEED_ONLY.

From-SVN: r278118

2019-11-13  Martin Liska  <mliska@suse.cz>

	* gcc.dg/params/params.exp: Restore test by parsing output
	of --help=params -Q.

From-SVN: r278117

2019-11-13  Martin Liska  <mliska@suse.cz>

	* tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers):
	Remove call to finalize_options_struct.

From-SVN: r278116

	PR target/92055
	* config/avr/t-avr (avr-mcus): Do not depend on
	$(srcdir)/config/avr/t-multilib.

From-SVN: r278115

        gcc/fortran/
        * trans-expr.c (gfc_conv_procedure_call): Fold hidden
        is-present argument to the right type.

From-SVN: r278114

2019-11-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92473
	* tree-vect-loop.c (vect_create_epilog_for_reduction): Perform
	direct optab reduction in the correct type.

From-SVN: r278113

This case is testing 'web' on ignore naked clobber.
-funroll-loops no longer implies -fweb for powerpc.
So, add -fweb to enable 'web' for this case.

gcc.testsuite/
2019-11-13  Jiufu Guo  <guojiufu@linux.ibm.com>

	PR target/92465
	* gcc.dg/pr47763.c: Add option -fweb.

From-SVN: r278112

From-SVN: r278111

C++98 does not have long long int, and does not use (unsigned) long
long int for hexadecimal literals.  So let's use an ULL suffix here,
which is still not strict C++98, but which works with more compilers.


	* config/rs6000/rs6000.md (rs6000_set_fpscr_drn): Use ULL on big
	hexadecimal literal.

From-SVN: r278107

https://gcc.gnu.org/ml/gcc-patches/2019-11/msg00971.html
	gcc/cp/
	* name-lookup.c (lookup_using_decl): New function, merged from ...
	(do_class_using_decl): ... here.  Call it.  And ...
	(finish_nonmember_using_decl): ... here.  Call it.

	gcc/testsuite/
	* g++.dg/cpp0x/using-enum-2.C: Adjust expected error text.
	* g++.dg/cpp0x/using-enum-3.C: Likewise.
	* g++.dg/lookup/using4.C: Likewise.
	* g++.dg/lookup/using7.C: Likewise.
	* g++.dg/template/using12.C: Likewise.
	* g++.dg/template/using18.C: Likewise.
	* g++.dg/template/using22.C: Likewise.

From-SVN: r278106

2019-11-12  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/81651
	* module.c (gzopen_included_file, gzopen_included_file_1)
	(gzopen_intrinsic_module, bad_module, gfc_use_module): Use fully
	qualified module path for error reporting.

From-SVN: r278105

	PR target/92449
	* gcc.c-torture/compile/pr92449.c: New test.
	* gcc.target/powerpc/pr92449-1.c: New test.

From-SVN: r278104

	* config/rs6000/vsx.md (xscmpexpdp_<code> for CMP_TEST): Handle
	UNORDERED if !HONOR_NANS (DFmode).
	(xscmpexpqp_<code>_<mode> for CMP_TEST and IEEE128): Handle UNORDERED
	if !HONOR_NANS (<MODE>mode).

From-SVN: r278103

	* ipa-cp.c (ignore_edge_p): Also look for optimize flag.
	(ipcp_verify_propagated_values): Likewise.
	(propagate_constants_across_call): Likewise.
	(propagate_constants_topo): Likewise.
	(ipcp_propagate_stage): Likewise.

From-SVN: r278102

        libgfortran/
        PR fortran/92470
        * runtime/ISO_Fortran_binding.c (CFI_address): Handle non-zero
        lower_bound; update error message.
        (CFI_allocate): Fix comment typo.
        (CFI_establish): Fix identation, fix typos, don't check values of 'dv'
        argument.

        gcc/testsuite/
        PR fortran/92470
        * gfortran.dg/ISO_Fortran_binding_17.c: New.
        * gfortran.dg/ISO_Fortran_binding_17.f90: New.
        * gfortran.dg/ISO_Fortran_binding_1.c (elemental_mult_c, allocate_c,
        section_c, select_part_c): Update for CFI_{address} changes;
        add asserts.

From-SVN: r278101

	PR ipa/92471
	* ipa-profile.c (check_argument_count): Break out from ...;
	watch for missing summaries.
	(ipa_profile): Here.

From-SVN: r278100

gcc/ChangeLog:

	PR tree-optimization/92412
	* targhooks.c (default_ref_may_alias_errno): Errono can only alias
	extern variables.

gcc/testsuite/ChangeLog:

	PR tree-optimization/92412
	* gcc.dg/strlenopt-91.c: New test.

From-SVN: r278099

gcc/ChangeLog:

	PR middle-end/83688
	* gimple-ssa-sprintf.c (format_result::alias_info): New struct.
	(directive::argno): New member.
	(format_result::aliases, format_result::alias_count): New data members.
	(format_result::append_alias): New member function.
	(fmtresult::dst_offset): New data member.
	(pass_sprintf_length::call_info::dst_origin): New data member.
	(pass_sprintf_length::call_info::dst_field, dst_offset): Same.
	(char_type_p, array_elt_at_offset, field_at_offset): New functions.
	(get_origin_and_offset): Same.
	(format_string): Call it.
	(format_directive): Call append_alias and set directive argument
	number.
	(maybe_warn_overlap): New function.
	(pass_sprintf_length::compute_format_length): Call it.
	(pass_sprintf_length::handle_gimple_call): Initialize new members.
	* gcc/tree-ssa-strlen.c (): Also enable when -Wrestrict is on.

gcc/testsuite/ChangeLog:

	PR tree-optimization/35503
	* gcc.dg/tree-ssa/builtin-sprintf-warn-23.c: New test.

From-SVN: r278098

https://gcc.gnu.org/ml/gcc-patches/2019-11/msg00926.html
	* g++.dg/lookup/pr6936.C: Delete, identical to using38.C

From-SVN: r278096

try_forward_edges does not update dominance info, and merge_blocks
relies on it being up-to-date.  In PR92430 stale dominance info makes
merge_blocks produce a loop in the dominator tree, which in turn makes
delete_basic_block loop forever.

Fix by freeing dominance info at the beginning of cleanup_cfg.

gcc/ChangeLog:

2019-11-12  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR rtl-optimization/92430
	* cfgcleanup.c (pass_jump_after_combine::execute): Free
	dominance info at the beginning.

gcc/testsuite/ChangeLog:

2019-11-12  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR rtl-optimization/92430
	* gcc.dg/pr92430.c: New test (from Arseny Solokha).

From-SVN: r278095

re PR tree-optimization/92460 (ICE: verify_ssa failed (error: definition in block 13 does not dominate use in block 22))

2019-11-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92460
	* tree-vect-stmts.c (vectorizable_simd_clone_call): Unshare
	expression before gimplifying.

From-SVN: r278094

2019-11-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92461
	* tree-vect-loop.c (vect_create_epilog_for_reduction): Update
	stmt after propagation.

	* gcc.dg/torture/pr92461.c: New testcase.

From-SVN: r278093

2019-11-12  Martin Liska  <mliska@suse.cz>

	* config/i386/i386-options.c (ix86_recompute_optlev_based_flags):
	Use SET_OPTION_IF_UNSET.
	(ix86_option_override_internal): Likewise.
	* opts.c (default_options_optimization): Likewise.
	(finish_options): Likewise.
	(enable_fdo_optimizations): Likewise.
	(common_handle_option): Likewise.
2019-11-12  Martin Liska  <mliska@suse.cz>

	* c-opts.c (c_common_post_options):
	Use SET_OPTION_IF_UNSET.
2019-11-12  Martin Liska  <mliska@suse.cz>

	* options.c (gfc_init_options):
	Use SET_OPTION_IF_UNSET.
2019-11-12  Martin Liska  <mliska@suse.cz>

	* go-lang.c (go_langhook_post_options):
	Use SET_OPTION_IF_UNSET.

From-SVN: r278091

2019-11-12  Martin Liska  <mliska@suse.cz>

	* common/common-target.def: Remove option_validate_param and
	option_default_params.
	* common/common-targhooks.c (default_option_validate_param):
	Remove.
	* common/common-targhooks.h (default_option_validate_param):
	Remove.
	* common/config/aarch64/aarch64-common.c (TARGET_OPTION_DEFAULT_PARAMS):
	Remove usage of this.
	(TARGET_OPTION_VALIDATE_PARAM): Likewise.
	(aarch64_option_validate_param): Likewise.
	(aarch64_option_default_params): Likewise
	* common/config/bpf/bpf-common.c (bpf_option_default_params): Likewise.
	(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
	* common/config/ia64/ia64-common.c (ia64_option_default_params): Likewise.
	(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
	* common/config/powerpcspe/powerpcspe-common.c (rs6000_option_default_params): Likewise.
	(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
	* common/config/rs6000/rs6000-common.c (rs6000_option_default_params): Likewise.
	(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
	* common/config/sh/sh-common.c (sh_option_default_params): Likewise.
	(TARGET_OPTION_DEFAULT_PARAMS): Likewise.
	* config/aarch64/aarch64.c (aarch64_override_options_internal): Validate
	guard_size here.
	* doc/tm.texi: Remove option_default_params and option_validate_param.
	* doc/tm.texi.in: Likewise.

From-SVN: r278090