path: root/gcc/ChangeLog.omp

2023-06-19  Julian Brown  <julian@codesourcery.com>

	Revert:
	2018-08-28  Julian Brown  <julian@codesourcery.com>
		    Cesar Philippidis  <cesar@codesourcery.com>

	* gimplify.cc (oacc_array_mapping_info): New struct.
	(gimplify_omp_ctx): Add decl_data_clause hash map.
	(new_omp_context): Zero-initialise above.
	(delete_omp_context): Delete above if allocated.
	(gimplify_scan_omp_clauses): Scan for array mappings on data constructs,
	and record in above map.
	(gomp_oacc_needs_data_present): New function.
	(gimplify_adjust_omp_clauses_1): Handle data mappings (e.g. array
	slices) declared in lexically-enclosing data constructs.
	* omp-low.cc (lower_omp_target): Allow decl for bias not to be present
	in OpenACC context.

2023-06-19  Julian Brown  <julian@codesourcery.com>

	Revert:
	2019-05-19  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (oacc_array_mapping_info): Add REF field.
	(gimplify_scan_omp_clauses): Initialise above field for data blocks
	passed by reference.
	(gomp_oacc_needs_data_present): Handle references.
	(gimplify_adjust_omp_clauses_1): Handle references and optional
	arguments for variables declared in lexically-enclosing OpenACC data
	region.

2023-06-19  Julian Brown  <julian@codesourcery.com>

	Revert:
	2019-07-10  Cesar Philippidis  <cesar@codesourcery.com>
		    Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (gimplify_adjust_omp_clauses_1): Raise error for
	assumed-size arrays in map clauses for Fortran/OpenMP.
	* omp-low.cc (lower_omp_target): Set the size of assumed-size Fortran
	arrays to one to allow use of data already mapped on the offload device.

2023-06-13  Sandra Loosemore  <sandra@codesourcery.com>

	* omp-api.h: New.
	* omp-general.cc (omp_runtime_api_procname): New.
	(omp_runtime_api_call): Moved here from omp-low.cc, and make
	non-static.
	* omp-general.h: Include omp-api.h.
	* omp-low.cc (omp_runtime_api_call): Delete this copy.

2023-06-13  Sandra Loosemore  <sandra@codesourcery.com>
	    Frederik Harwath <frederik@codesourcery.com>

	* tree-nested.cc (convert_nonlocal_omp_clauses): Handle loop
	transformation clauses.
	(convert_local_omp_clauses): Likewise.

2023-06-12  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline:
	2023-06-12  Tobias Burnus  <tobias@codesourcery.com>

	* gimplify.cc (gimplify_adjust_omp_clauses_1): Use
	GOMP_MAP_FORCE_PRESENT for 'present alloc' implicit mapping.
	(gimplify_adjust_omp_clauses): Change
	GOMP_MAP_PRESENT_{TO,TOFROM,FROM,ALLOC} to the equivalent
	GOMP_MAP_FORCE_PRESENT.
	* omp-low.cc (lower_omp_target): Remove handling of no-longer valid
	GOMP_MAP_PRESENT_{TO,TOFROM,FROM,ALLOC}; update map kinds used for
	to/from clauses with present modifier.

2023-06-07  Tobias Burnus  <tobias@codesourcery.com>

	Backported from mainline:
	2023-06-06  Kwok Cheung Yeung  <kcy@codesourcery.com>
		    Tobias Burnus  <tobias@codesourcery.com>

	* gimplify.cc (omp_notice_variable): Apply GOVD_MAP_ALLOC_ONLY flag
	and defaultmap flags if the defaultmap has GOVD_MAP_FORCE_PRESENT flag
	set.
	(omp_get_attachment): Handle map clauses with 'present' modifier.
	(omp_group_base): Likewise.
	(gimplify_scan_omp_clauses): Reorder present maps to come first.
	Set GOVD flags for present defaultmaps.
	(gimplify_adjust_omp_clauses_1): Set map kind for present defaultmaps.
	* omp-low.cc (scan_sharing_clauses): Handle 'always, present' map
	clauses.
	(lower_omp_target): Handle map clauses with 'present' modifier.
	Handle 'to' and 'from' clauses with 'present'.
	* tree-core.h (enum omp_clause_defaultmap_kind): Add
	OMP_CLAUSE_DEFAULTMAP_PRESENT defaultmap kind.
	* tree-pretty-print.cc (dump_omp_clause): Handle 'map', 'to' and
	'from' clauses with 'present' modifier.  Handle present defaultmap.
	* tree.h (OMP_CLAUSE_MOTION_PRESENT): New #define.

2023-06-07  Tobias Burnus  <tobias@codesourcery.com>

	Reverted:
	2023-02-01  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimplify.cc (omp_notice_variable): Apply GOVD_MAP_ALLOC_ONLY flag
	and defaultmap flags if the defaultmap has GOVD_MAP_FORCE_PRESENT flag
	set.
	(omp_get_attachment): Handle map clauses with 'present' modifier.
	(omp_group_base): Likewise.
	(gimplify_scan_omp_clauses): Reorder present maps to come first.
	Set GOVD flags for present defaultmaps.
	(gimplify_adjust_omp_clauses_1): Set map kind for present defaultmaps.
	* omp-low.cc (scan_sharing_clauses): Handle 'always, present' map
	clauses.
	(lower_omp_target): Handle map clauses with 'present' modifier.
	Handle 'to' and 'from' clauses with 'present'.
	* tree-core.h (enum omp_clause_defaultmap_kind): Add
	OMP_CLAUSE_DEFAULTMAP_PRESENT defaultmap kind.
	(enum omp_clause_motion_modifier): New.
	(struct tree_omp_clause): Add motion_modifier field.
	* tree-pretty-print.cc (dump_omp_clause): Handle 'map', 'to' and
	'from' clauses with 'present' modifier.  Handle present defaultmap.
	* tree.h (OMP_CLAUSE_MOTION_MODIFIER): New.
	(OMP_CLAUSE_SET_MOTION_MODIFIER): New.

2023-05-30  Tobias Burnus  <tobias@codesourcery.com>

	* config/gcn/gcn.opt (mxnack=): Fix default value in the
	description line.
	* doc/invoke.texi (mxnack): Update to the on/off/any
	version.

2023-05-30  Tobias Burnus  <tobias@codesourcery.com>

	Backport from master:
	2023-05-21  Roger Sayle  <roger@nextmovesoftware.com>

	* config/nvptx/nvptx.cc (nvptx_expand_brev): Expand target
	builtin for bit reversal using brev instruction.
	(enum nvptx_builtins): Add NVPTX_BUILTIN_BREV and
	NVPTX_BUILTIN_BREVLL.
	(nvptx_init_builtins): Define "brev" and "brevll".
	(nvptx_expand_builtin): Expand NVPTX_BUILTIN_BREV and
	NVPTX_BUILTIN_BREVLL via nvptx_expand_brev function.
	* doc/extend.texi (Nvidia PTX Builtin-in Functions): New
	section, document __builtin_nvptx_brev{,ll}.

2023-05-30  Tobias Burnus  <tobias@codesourcery.com>

	Backport from master:
	2023-05-05  Tobias Burnus  <tobias@codesourcery.com>

	* config/gcn/gcn.cc (gcn_vectorize_builtin_vectorized_function): Remove
	unused in_mode/in_n variables.

2023-05-12  Julian Brown  <julian@codesourcery.com>

	* omp-builtins.def (BUILT_IN_OMP_IS_INITIAL_DEVICE): New builtin.
	* tree.cc (get_file_function_name): Support names for on-target
	constructor/destructor functions.

2023-05-04  Frederik Harwath  <frederik@codesourcery.com>

	* omp-transform-loops.cc (full_unroll): Add initialization of index variable.

2023-04-18  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimplify.cc (omp_group_base): Handle GOMP_MAP_NONCONTIG_ARRAY_*
	map types.

2023-04-17  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimplify.cc (omp_group_base): Handle GOMP_MAP_DECLARE_ALLOCATE
	and GOMP_MAP_DECLARE_DEALLOCATE.

2023-04-03  Thomas Schwinge  <thomas@codesourcery.com>

	* doc/invoke.texi (-foffload-memory=pinned): Document.

2023-03-31  Frederik Harwath  <frederik@codesourcery.com>

	* omp-transform-loops.cc (walk_omp_for_loops): Handle
	GIMPLE_OMP_METADIRECTIVE.

2023-03-24  Frederik Harwath  <frederik@codesourcery.com>

	* omp-transform-loops.cc (gimple_assign_rhs_to_tree): Fix type
	in comment.
	(gomp_for_uncollapse): Adjust "collapse" value after uncollapse.
	(partial_unroll): Add argument for the loop nest level to be transformed.
	(tile): Likewise.
	(transform_gomp_for): Pass level to transformatoin functions.
	(optimize_transformation_clauses): Handle transformation clauses for all
	levels recursively.
	* tree-pretty-print.cc (dump_omp_clause): Print
	OMP_CLAUSE_TRANSFORM_LEVEL for OMP_CLAUSE_UNROLL_FULL,
	OMP_CLAUSE_UNROLL_PARTIAL, and OMP_CLAUSE_TILE.
	* tree.cc: Increase number of operands of OMP_CLAUSE_UNROLL_FULL,
	OMP_CLAUSE_UNROLL_PARTIAL, and OMP_CLAUSE_TILE.
	* tree.h (OMP_CLAUSE_TRANSFORM_LEVEL): New macro to access
	clause operand 0.
	(OMP_CLAUSE_UNROLL_PARTIAL_EXPR): Use operand 1 instead of 0.
	(OMP_CLAUSE_TILE_SIZES): Likewise.

2023-03-24  Frederik Harwath  <frederik@codesourcery.com>

	* gimplify.cc (omp_for_drop_tile_clauses): New function, ...
	(gimplify_omp_for): ... used here.

2023-03-24  Frederik Harwath  <frederik@codesourcery.com>

	* gimplify.cc (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_TILE.
	(gimplify_adjust_omp_clauses): Likewise.
	(gimplify_omp_loop): Likewise.
	* omp-transform-loops.cc (walk_omp_for_loops): New declaration.
	(subst_var_in_op): New function.
	(subst_var): New function.
	(gomp_for_number_of_iterations): Adjust.
	(gomp_for_iter_count_type): New function.
	(gimple_assign_rhs_to_tree): New function.
	(subst_defs): New function.
	(gomp_for_uncollapse): Adjust.
	(transformation_clause_p): Add OMP_CLAUSE_TILE.
	(tile): New function.
	(transform_gomp_for): Handle OMP_CLAUSE_TILE.
	(optimize_transformation_clauses): Handle OMP_CLAUSE_TILE.
	* omp-general.cc (omp_loop_transform_clause_p): Add
	OMP_CLAUSE_TILE.
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_TILE.
	* tree-pretty-print.cc (dump_omp_clause): Handle OMP_CLAUSE_TILE.
	* tree.cc: Add OMP_CLAUSE_TILE.
	* tree.h (OMP_CLAUSE_TILE_SIZES): New macro.

2023-03-24  Frederik Harwath  <frederik@codesourcery.com>

	* tree-core.h (enum omp_clause_code): Rename OMP_CLAUSE_TILE.
	* tree.h (OMP_CLAUSE_TILE_LIST): Rename to ...
	(OMP_CLAUSE_OACC_TILE_LIST): ... this.
	(OMP_CLAUSE_TILE_ITERVAR): Rename to ...
	(OMP_CLAUSE_OACC_TILE_ITERVAR): ... this.
	(OMP_CLAUSE_TILE_COUNT): Rename to ...
	(OMP_CLAUSE_OACC_TILE_COUNT): this.
	* gimplify.cc (gimplify_scan_omp_clauses): Adjust to renamings.
	(gimplify_adjust_omp_clauses): Likewise.
	(gimplify_omp_for): Likewise.
	* omp-general.cc (omp_extract_for_data): Likewise.
	* omp-low.cc (scan_sharing_clauses): Likewise.
	(lower_oacc_head_mark): Likewise.
	* tree-nested.cc (convert_nonlocal_omp_clauses): Likewise.
	(convert_local_omp_clauses): Likewise.
	* tree-pretty-print.cc (dump_omp_clause): Likewise.
	* tree.cc: Likewise.

2023-03-24  Frederik Harwath  <frederik@codesourcery.com>

	* Makefile.in: Add omp_transform_loops.o.
	* gimple-pretty-print.cc (dump_gimple_omp_for): Handle "full"
	and "partial" clauses.
	* gimple.h (enum gf_mask): Add GF_OMP_FOR_KIND_TRANSFORM_LOOP.
	* gimplify.cc (is_gimple_stmt): Handle OMP_UNROLL.
	(gimplify_scan_omp_clauses): Handle OMP_UNROLL_FULL,
	OMP_UNROLL_NONE, and OMP_UNROLL_PARTIAL.
	(gimplify_adjust_omp_clauses): Handle OMP_UNROLL_FULL,
	OMP_UNROLL_NONE, and OMP_UNROLL_PARTIAL.
	(gimplify_omp_for): Handle OMP_UNROLL.
	(gimplify_expr): Likewise.
	* params.opt: Add omp-unroll-full-max-iteration and
	omp-unroll-default-factor.
	* passes.def: Add pass_omp_transform_loop before
	pass_lower_omp.
	* tree-core.h (enum omp_clause_code): Add
	OMP_CLAUSE_UNROLL_NONE, OMP_CLAUSE_UNROLL_FULL, and
	OMP_CLAUSE_UNROLL_PARTIAL.
	* tree-pass.h (make_pass_omp_transform_loops): Declare
	pmake_pass_omp_transform_loops.
	* tree-pretty-print.cc (dump_omp_clause): Handle
	OMP_CLAUSE_UNROLL_NONE, OMP_CLAUSE_UNROLL_FULL, and
	OMP_CLAUSE_UNROLL_PARTIAL.
	(dump_generic_node): Handle OMP_UNROLL.
	* tree.cc (omp_clause_num_ops): Add number of operators
	for OMP_CLAUSE_UNROLL_FULL, OMP_CLAUSE_UNROLL_NONE, and
	OMP_CLAUSE_UNROLL_PARTIAL.
	(omp_clause_code_names): Add name strings for
	OMP_CLAUSE_UNROLL_FULL, OMP_CLAUSE_UNROLL_NONE, and
	OMP_CLAUSE_UNROLL_PARTIAL.
	* tree.def (OMP_UNROLL): Define.
	* tree.h (OMP_CLAUSE_UNROLL_PARTIAL_EXPR): Define.
	* omp-transform-loops.cc: New file.
	* omp-general.cc (omp_loop_transform_clause_p): New function.
	* omp-general.h (omp_loop_transform_clause_p): New declaration.

2023-03-17  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.cc (gcn_class_max_nregs): Handle vectors in SGPRs.
	(move_callee_saved_registers): Detect the bug condition early.

2023-03-17  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-valu.md (gather_load<mode><vndi>): New.
	(scatter_store<mode><vndi>): New.
	(mask_gather_load<mode><vndi>): New.
	(mask_scatter_store<mode><vndi>): New.

2023-03-17  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-protos.h (gcn_stepped_zero_int_parallel_p): New.
	* config/gcn/gcn-valu.md (V_1REG_ALT): New.
	(V_2REG_ALT): New.
	(vec_extract<V_1REG:mode><V_1REG_ALT:mode>_nop): New.
	(vec_extract<V_2REG:mode><V_2REG_ALT:mode>_nop): New.
	(vec_extract<V_ALL:mode><V_ALL_ALT:mode>): Use new patterns.
	* config/gcn/gcn.cc (gcn_stepped_zero_int_parallel_p): New.
	* config/gcn/predicates.md (ascending_zero_int_parallel): New.

2023-02-22  Tobias Burnus  <tobias@codesourcery.com>

	* gimplify.cc (gimplify_scan_omp_clauses): Remove Fortran
	special case.

2023-02-16  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-builtins.def (DISPATCH_PTR): New built-in.
	* config/gcn/gcn.cc (gcn_init_machine_status): Disable global
	addressing.
	(gcn_expand_builtin_1): Implement GCN_BUILTIN_DISPATCH_PTR.

2023-02-01  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimplify.cc (omp_notice_variable): Apply GOVD_MAP_ALLOC_ONLY flag
	and defaultmap flags if the defaultmap has GOVD_MAP_FORCE_PRESENT flag
	set.
	(omp_get_attachment): Handle map clauses with 'present' modifier.
	(omp_group_base): Likewise.
	(gimplify_scan_omp_clauses): Reorder present maps to come first.
	Set GOVD flags for present defaultmaps.
	(gimplify_adjust_omp_clauses_1): Set map kind for present defaultmaps.
	* omp-low.cc (scan_sharing_clauses): Handle 'always, present' map
	clauses.
	(lower_omp_target): Handle map clauses with 'present' modifier.
	Handle 'to' and 'from' clauses with 'present'.
	* tree-core.h (enum omp_clause_defaultmap_kind): Add
	OMP_CLAUSE_DEFAULTMAP_PRESENT defaultmap kind.
	(enum omp_clause_motion_modifier): New.
	(struct tree_omp_clause): Add motion_modifier field.
	* tree-pretty-print.cc (dump_omp_clause): Handle 'map', 'to' and
	'from' clauses with 'present' modifier.  Handle present defaultmap.
	* tree.h (OMP_CLAUSE_MOTION_MODIFIER): New.
	(OMP_CLAUSE_SET_MOTION_MODIFIER): New.

2023-01-20  Thomas Schwinge  <thomas@codesourcery.com>

	* collect2.cc (write_c_file_glob): Allow for
	'COLLECT2_MAIN_REFERENCE' override.
	* config.gcc <case ${target} in nvptx-*>: Set 'use_collect2=yes'.
	* config/nvptx/nvptx.h: Adjust.

	* config/nvptx/nvptx.cc (nvptx_assemble_undefined_decl): Notice
	'__nvptx_stacks', '__nvptx_uni' declarations.
	(nvptx_file_end): Don't emit duplicate declarations for those.

	* config/nvptx/nvptx.md (nvptx_uniform_warp_check): Make fit for
	non-full-warp execution.

2022-11-01  Marcel Vollweiler  <marcel@codesourcery.com>

	* omp-expand-metadirective.cc (omp_expand_metadirective): Add already
	processed labels to "labels" (the list of labels not to be deleted).

2022-10-25  Abid Qadeer  <abidh@codesourcery.com>

	* omp-low.cc (usm_transform): Handle operator new with alignment.

2022-10-24  Andrew Stubbs  <ams@codesourcery.com>

	* tree-vect-data-refs.cc (vect_analyze_data_refs): Workaround an
	address-space bug.

2022-10-24  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.cc (gcn_init_cumulative_args): Disallow gfx908.

2022-10-24  Andrew Stubbs  <ams@codesourcery.com>

	* plugin/plugin-gcn.c (HSA_AMD_SYSTEM_INFO_SVM_SUPPORTED): New.
	(HSA_SYSTEM_INFO_SVM_ACCESSIBLE_BY_DEFAULT): New.
	(HSA_AMD_SVM_ATTRIB_GLOBAL_FLAG): New.
	(HSA_AMD_SVM_GLOBAL_FLAG_COARSE_GRAINED): New.
	(hsa_amd_svm_attribute_pair_t): New.
	(struct hsa_runtime_fn_info): Add hsa_amd_svm_attributes_set_fn.
	(dump_hsa_system_info): Dump HSA_AMD_SYSTEM_INFO_SVM_SUPPORTED and
	HSA_SYSTEM_INFO_SVM_ACCESSIBLE_BY_DEFAULT.
	(DLSYM_OPT_FN): New.
	(init_hsa_runtime_functions): Add hsa_amd_svm_attributes_set.
	(GOMP_OFFLOAD_usm_alloc): Use malloc and hsa_amd_svm_attributes_set.
	(GOMP_OFFLOAD_usm_free): Use regular free.
	* testsuite/libgomp.c/usm-1.c: Add -mxnack=on for amdgcn.
	* testsuite/libgomp.c/usm-2.c: Likewise.
	* testsuite/libgomp.c/usm-3.c: Likewise.
	* testsuite/libgomp.c/usm-4.c: Likewise.

2022-10-21  Tobias Burnus  <tobias@codesourcery.com>

	* omp-oacc-kernels-decompose.cc (top_level_omp_for_in_stmt,
	decompose_kernels_region_body): Handle GIMPLE_DEBUG like
	simple assignment.

2022-10-19  Tobias Burnus  <tobias@codesourcery.com>

	* omp-expand.cc (expand_omp_target): Fix OpenACC in case there
	are more than 3 arguments to the builtin function.

2022-07-12  Andrew Stubbs  <ams@codesourcery.com>

	* gimple-loop-versioning.cc (loop_versioning::loop_versioning): Add
	comment.
	* omp-general.cc (omp_max_simd_vf): New function.
	* omp-general.h (omp_max_simd_vf): New prototype.
	* omp-low.cc (lower_rec_simd_input_clauses): Select largest from
	  omp_max_vf, omp_max_simt_vf, and omp_max_simd_vf.

2022-06-17  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn.c (unified_shared_memory_enabled): New variable.
	(gcn_init_cumulative_args): Handle attribute "omp unified memory".
	(gcn_hsa_declare_function_name): Emit "MKOFFLOAD OPTIONS: USM+".
	* config/gcn/mkoffload.c (TEST_XNACK_OFF): New macro.
	(process_asm): Detect "MKOFFLOAD OPTIONS: USM+".
	Emit configure_xnack constructor, as required.
	* omp-low.c (create_omp_child_function): Add attribute "omp unified
	memory".

2022-06-10  Andrew Stubbs  <ams@codesourcery.com>

	* config/gcn/gcn-hsa.h (XNACKOPT): New macro.
	(ASM_SPEC): Use XNACKOPT.
	* config/gcn/gcn-opts.h (enum sram_ecc_type): Rename to ...
	(enum hsaco_attr_type): ... this, and generalize the names.
	(TARGET_XNACK): New macro.
	* config/gcn/gcn-valu.md (gather<mode>_insn_1offset<exec>):
	Add xnack compatible alternatives.
	(gather<mode>_insn_2offsets<exec>): Likewise.
	* config/gcn/gcn.c (gcn_option_override): Permit -mxnack for devices
	other than Fiji.
	(gcn_expand_epilogue): Remove early-clobber problems.
	(output_file_start): Emit xnack attributes.
	(gcn_hsa_declare_function_name): Obey -mxnack setting.
	* config/gcn/gcn.md (xnack): New attribute.
	(enabled): Rework to include "xnack" attribute.
	(*movbi): Add xnack compatible alternatives.
	(*mov<mode>_insn): Likewise.
	(*mov<mode>_insn): Likewise.
	(*mov<mode>_insn): Likewise.
	(*movti_insn): Likewise.
	* config/gcn/gcn.opt (-mxnack): Add the "on/off/any" syntax.
	(sram_ecc_type): Rename to ...
	(hsaco_attr_type: ... this.)
	* config/gcn/mkoffload.c (SET_XNACK_ANY): New macro.
	(TEST_XNACK): Delete.
	(TEST_XNACK_ANY): New macro.
	(TEST_XNACK_ON): New macro.
	(main): Support the new -mxnack=on/off/any syntax.

2022-06-17  Chung-Lin Tang  <cltang@codesourcery.com>

	Backport from mainline:
	2022-06-17  Chung-Lin Tang  <cltang@codesourcery.com>

	* builtin-types.def (BT_FN_VOID_PTRMODE): Define.
	(BT_FN_PTRMODE_PTRMODE_INT_PTR): Define.
	* omp-builtins.def (BUILT_IN_OMP_INIT_ALLOCATOR): Define.
	(BUILT_IN_OMP_DESTROY_ALLOCATOR): Define.
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_USES_ALLOCATORS.
	* tree-pretty-print.cc (dump_omp_clause): Handle OMP_CLAUSE_USES_ALLOCATORS.
	* tree.h (OMP_CLAUSE_USES_ALLOCATORS_ALLOCATOR): New macro.
	(OMP_CLAUSE_USES_ALLOCATORS_MEMSPACE): New macro.
	(OMP_CLAUSE_USES_ALLOCATORS_TRAITS): New macro.
	* tree.cc (omp_clause_num_ops): Add OMP_CLAUSE_USES_ALLOCATORS.
	(omp_clause_code_name): Add "uses_allocators".
	(walk_tree_1): Add OMP_CLAUSE_USES_ALLOCATORS case.

	* gimplify.cc (gimplify_scan_omp_clauses): Add checking of OpenMP target
	region allocate clauses, to require a uses_allocators clause to exist
	for allocators.
	(gimplify_omp_workshare): Add handling of OMP_CLAUSE_USES_ALLOCATORS
	for OpenMP target regions; create calls of omp_init/destroy_allocator
	around target region body.
	* omp-low.cc (lower_private_allocate): Adjust receiving of allocator.
	(lower_rec_input_clauses): Likewise.
	(create_task_copyfn): Add dereference for allocator if needed.

	* system.h (startswith): New function.

2022-03-11  Andrew Stubbs  <ams@codesourcery.com>

	* omp-builtins.def (BUILT_IN_GOMP_ENABLE_PINNED_MODE): New.
	* omp-low.cc (omp_enable_pinned_mode): New function.
	(execute_lower_omp): Call omp_enable_pinned_mode.

2022-03-11  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* omp-low.cc (usm_transform): New function.
	(make_pass_usm_transform): Likewise.
	(class pass_usm_transform): New.
	* passes.def: Add pass_usm_transform.
	* tree-pass.h (make_pass_usm_transform): New declaration.

2022-02-02  Andrew Stubbs  <ams@codesourcery.com>

	* common.opt: Add -foffload-memory and its enum values.
	* coretypes.h (enum offload_memory): New.
	* doc/invoke.texi: Document -foffload-memory.

2022-03-09  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* omp-low.cc (scan_sharing_clauses): Handle OMP_CLAUSE_ALLOCATOR.
	(scan_omp_allocate): New.
	(scan_omp_1_stmt): Call it.
	(lower_omp_allocate): New function.
	(lower_omp_1): Call it.

2022-03-09  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* doc/gimple.texi: Describe GIMPLE_OMP_ALLOCATE.
	* gimple-pretty-print.cc (dump_gimple_omp_allocate): New function.
	(pp_gimple_stmt_1): Call it.
	* gimple.cc (gimple_build_omp_allocate): New function.
	* gimple.def (GIMPLE_OMP_ALLOCATE): New node.
	* gimple.h (enum gf_mask): Add GF_OMP_ALLOCATE_KIND_MASK,
	GF_OMP_ALLOCATE_KIND_ALLOCATE and GF_OMP_ALLOCATE_KIND_FREE.
	(struct gomp_allocate): New.
	(is_a_helper <gomp_allocate *>::test): New.
	(is_a_helper <const gomp_allocate *>::test): New.
	(gimple_build_omp_allocate): Declare.
	(gimple_omp_allocate_set_clauses): New.
	(gimple_omp_allocate_set_kind): Likewise.
	(gimple_omp_allocate_clauses): Likewise.
	(gimple_omp_allocate_kind): Likewise.
	(CASE_GIMPLE_OMP): Add GIMPLE_OMP_ALLOCATE.
	* gimplify.cc (gimplify_omp_allocate): New.
	(gimplify_expr): Call it.
	* gsstruct.def (GSS_OMP_ALLOCATE): Define.

2022-01-08  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* tree-core.h (struct tree_base): Add comments.
	* tree-pretty-print.cc (dump_generic_node): Handle allocate directive
	kind.
	* tree.h (OMP_ALLOCATE_KIND_ALLOCATE): New define.
	(OMP_ALLOCATE_KIND_FREE): Likewise.

2022-03-09  Hafiz Abid Qadeer  <abidh@codesourcery.com>

	* tree-pretty-print.cc (dump_omp_clause): Handle OMP_CLAUSE_ALLOCATOR.
	(dump_generic_node): Handle OMP_ALLOCATE.
	* tree.def (OMP_ALLOCATE): New.
	* tree.h (OMP_ALLOCATE_CLAUSES): Likewise.
	(OMP_ALLOCATE_DECL): Likewise.
	(OMP_ALLOCATE_ALLOCATOR): Likewise.
	* tree.cc (omp_clause_num_ops): Add entry for OMP_CLAUSE_ALLOCATOR.

2022-03-01  Tobias Burnus  <tobias@codesourcery.com>

	* langhooks-def.h (lhd_omp_deep_mapping_p,
	lhd_omp_deep_mapping_cnt, lhd_omp_deep_mapping): New.
	(LANG_HOOKS_OMP_DEEP_MAPPING_P, LANG_HOOKS_OMP_DEEP_MAPPING_CNT,
	LANG_HOOKS_OMP_DEEP_MAPPING): Define.
	(LANG_HOOKS_DECLS): Use it.
	* langhooks.cc (lhd_omp_deep_mapping_p, lhd_omp_deep_mapping_cnt,
	lhd_omp_deep_mapping): New stubs.
	* langhooks.h (struct lang_hooks_for_decls): Add new hooks
	* omp-expand.cc (expand_omp_target): Handle dynamic-size
	addr/sizes/kinds arrays.
	* omp-low.cc (build_sender_ref, fixup_child_record_type,
	scan_sharing_clauses, lower_omp_target): Update to handle
	new hooks and dynamic-size addr/sizes/kinds arrays.

2022-01-28  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimplify.cc (gimplify_omp_metadirective): Mark offloadable functions
	containing metadirectives with 'construct={target}' in the selector.
	* omp-general.cc (omp_has_target_constructor_p): New.
	* omp-general.h (omp_has_target_constructor_p): New prototype.
	* omp-low.cc (lower_omp_1): Emit warning if marked functions called
	outside of a target context.

2022-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* builtin-types.def (BT_FN_BOOL_INT_CONST_PTR_CONST_PTR_CONST_PTR): New
	type.
	* omp-builtins.def (BUILT_IN_GOMP_EVALUATE_TARGET_DEVICE): New builtin.
	* omp-general.cc (omp_context_selector_matches): Handle 'target_device'
	selector set.
	(omp_dynamic_cond): Generate expression tree for 'target_device'
	selector set.
	(omp_context_compute_score): Handle selectors in 'target_device' set.

2022-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-general.cc (omp_check_context_selector): Revert string length
	check.
	(omp_context_name_list_prop): Likewise.

2022-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* Makefile.in (OBJS): Add omp-expand-metadirective.o.
	* gimple-streamer-in.cc (input_gimple_stmt): Add case for
	GIMPLE_OMP_METADIRECTIVE.  Handle metadirective labels.
	* gimple-streamer-out.cc (output_gimple_stmt): Likewise.
	* omp-expand-metadirective.cc: New.
	* passes.def: Add pass_omp_expand_metadirective.
	* tree-pass.h (make_pass_omp_expand_metadirective): New prototype.

2022-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimplify.cc (expand_omp_metadirective): New.
	* omp-general.cc: Include tree-pretty-print.h.
	(DELAY_METADIRECTIVES_AFTER_LTO): New macro.
	(omp_context_selector_matches): Delay resolution of selectors.  Allow
	non-constant expressions.
	(omp_dynamic_cond): New.
	(omp_dynamic_selector_p): New.
	(sort_variant): New.
	(omp_get_dynamic_candidates): New.
	(omp_resolve_metadirective): New.
	(omp_resolve_metadirective): New.
	* omp-general.h (struct omp_metadirective_variant): New.
	(omp_resolve_metadirective): New prototype.

2022-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* gimple-low.cc (lower_omp_metadirective): New.
	(lower_stmt): Handle GIMPLE_OMP_METADIRECTIVE.
	* gimple-pretty-print.cc (dump_gimple_omp_metadirective): New.
	(pp_gimple_stmt_1): Handle GIMPLE_OMP_METADIRECTIVE.
	* gimple-walk.cc (walk_gimple_op): Handle GIMPLE_OMP_METADIRECTIVE.
	(walk_gimple_stmt): Likewise.
	* gimple.cc (gimple_alloc_omp_metadirective): New.
	(gimple_build_omp_metadirective): New.
	(gimple_build_omp_metadirective_variant): New.
	* gimple.def (GIMPLE_OMP_METADIRECTIVE): New.
	(GIMPLE_OMP_METADIRECTIVE_VARIANT): New.
	* gimple.h (gomp_metadirective_variant): New.
	(gomp_metadirective): New.
	(is_a_helper <gomp_metadirective *>::test): New.
	(is_a_helper <gomp_metadirective_variant *>::test): New.
	(is_a_helper <const gomp_metadirective *>::test): New.
	(is_a_helper <const gomp_metadirective_variant *>::test): New.
	(gimple_alloc_omp_metadirective): New prototype.
	(gimple_build_omp_metadirective): New prototype.
	(gimple_build_omp_metadirective_variant): New prototype.
	(gimple_has_substatements): Add GIMPLE_OMP_METADIRECTIVE case.
	(gimple_has_ops): Add GIMPLE_OMP_METADIRECTIVE.
	(gimple_omp_metadirective_label): New.
	(gimple_omp_metadirective_set_label): New.
	(gimple_omp_metadirective_variants): New.
	(gimple_omp_metadirective_set_variants): New.
	(CASE_GIMPLE_OMP): Add GIMPLE_OMP_METADIRECTIVE.
	* gimplify.cc (is_gimple_stmt): Add OMP_METADIRECTIVE.
	(expand_omp_metadirective): New.
	(gimplify_omp_metadirective): New.
	(gimplify_expr): Add case for OMP_METADIRECTIVE.
	* gsstruct.def (GSS_OMP_METADIRECTIVE): New.
	(GSS_OMP_METADIRECTIVE_VARIANT): New.
	* omp-expand.cc (build_omp_regions_1): Handle GIMPLE_OMP_METADIRECTIVE.
	(omp_make_gimple_edges): Likewise.
	* omp-low.cc (struct omp_context): Add next_clone field.
	(new_omp_context): Initialize next_clone field.
	(clone_omp_context): New.
	(delete_omp_context): Delete clone contexts.
	(scan_omp_metadirective): New.
	(scan_omp_1_stmt): Handle GIMPLE_OMP_METADIRECTIVE.
	(lower_omp_metadirective): New.
	(lower_omp_1): Handle GIMPLE_OMP_METADIRECTIVE.
	* tree-cfg.cc (cleanup_dead_labels): Handle GIMPLE_OMP_METADIRECTIVE.
	(gimple_redirect_edge_and_branch): Likewise.
	* tree-inline.cc (remap_gimple_stmt): Handle GIMPLE_OMP_METADIRECTIVE.
	(estimate_num_insns): Likewise.
	* tree-pretty-print.cc (dump_generic_node): Handle OMP_METADIRECTIVE.
	* tree-ssa-operands.cc (parse_ssa_operands): Handle
	GIMPLE_OMP_METADIRECTIVE.

2022-01-25  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-general.cc (omp_context_selector_matches): Add extra argument.
	(omp_resolve_metadirective): New stub function.
	* omp-general.h (struct omp_metadirective_variant): New.
	(omp_context_selector_matches): Add extra argument.
	(omp_resolve_metadirective): New prototype.
	* tree.def (OMP_METADIRECTIVE): New.
	* tree.h (OMP_METADIRECTIVE_CLAUSES): New macro.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* graphite-scop-detection.cc (scop_detection::harmful_loop_in_region):
	Remove check for loops without data references.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* graphite-scop-detection.cc (scop_context_loop): New function.
	(build_alias_set): Use scop_context_loop instead of find_common_loop.
	* graphite-isl-ast-to-gimple.cc (graphite_regenerate_ast_isl): Likewise.
	* graphite.h (scop_context_loop): New declaration.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* graphite-optimize-isl.cc (optimize_isl): Adjust
	param_max_isl_operations value for OpenACC functions and add
	special warnings if value gets exceeded.

	* graphite-scop-detection.cc (build_scops): Likewise for
	param_graphite_max_arrays_per_scop.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* tree-ssa-pre.cc (insert): Skip any insertions in OpenACC
	functions that might be processed by Graphite.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* passes.def: Set restrict_oacc_hoisting to true for the early
	pass_lim instance.
	* tree-ssa-loop-im.cc (movement_possibility_1): Add
	restrict_oacc_hoisting flag to function; restrict movement if set.
	(movement_possibility): Add restrict_oacc_hoisting parameter.  Forward
	to movement_possibility_1.
	(compute_invariantness): Add restrict_oacc_hoisting flag and pass it on.
	(gather_mem_refs_stmt): Skip IFN_GOACC_LOOP and IFN_UNIQUE
	calls.
	(loop_invariant_motion_in_fun): Add restrict_oacc_hoisting flag and
	pass it on.
	(pass_lim::execute): Pass on new flags.
	* tree-ssa-loop-manip.h (loop_invariant_motion_in_fun): Adjust declaration.
	* gimple-loop-interchange.cc (pass_linterchange::execute): Adjust call to
	loop_invariant_motion_in_fun.

2021-11-16  Andrew Stubbs  <ams@codesourcery.com>

	* common.opt: Add flag Wopenacc-false-independent.
	* omp-offload.cc (oacc_loop_warn_if_false_independent): New function.
	(oacc_loop_fixed_partitions): Call from here.

2021-11-16  Andrew Stubbs  <ams@codesourcery.com>

	* graphite-isl-ast-to-gimple.cc: Include internal-fn.h.
	(graphite_oacc_analyze_scop): Implement runtime alias checks.
	* omp-expand.cc (expand_oacc_for): Add an additional "noalias" parameter
	to GOACC_LOOP internal calls, and initialise it to integer_one_node.
	* omp-offload.cc (oacc_xform_loop): Integrate the runtime alias check
	into the GOACC_LOOP expansion.

2021-11-16  Andrew Stubbs  <ams@codesourcery.com>
	    Thomas Schwinge  <thomas@codesourcery.com>

	* Makefile.in: Add pass.
	* doc/gimple.texi: TODO.
	* gimple-walk.cc (walk_gimple_seq_mod): Adjust for backward walking.
	* gimple-walk.h (struct walk_stmt_info): Add field.
	* passes.def: Add new pass.
	* tree-pass.h (make_pass_omp_data_optimize): New declaration.
	* omp-data-optimize.cc: New file.

2021-11-16  Frederik Harwath <frederik@codesourcery.com>

	* tree-pretty-print.cc (print_omp_clause_to_str): Add new function.
	* tree-pretty-print.h (print_omp_clause_to_str): Add declaration.

2021-11-16  Frederik Harwath <frederik@codesourcery.com>

	* omp-offload.cc (oacc_remove_unused_partitioning): New function
	for removing partitioning that is not used by any loop.
	(oacc_validate_dims): Call oacc_remove_unused_partitioning and
	enable warnings about unused partitioning.

2021-11-16  Frederik Harwath <frederik@codesourcery.com>

	* graph.cc (oacc_get_fn_attrib): New declaration.
	(find_loop_location): New declaration.
	(draw_cfg_nodes_for_loop): Print value of the
	can_be_parallel flag at the top of loops in OpenACC
	functions.

2021-11-16  Frederik Harwath <frederik@codesourcery.com>
	    Thomas Schwinge <thomas@codesourcery.com>

            * Makefile.in: Add graphite-oacc.o
            * cfgloop.cc (alloc_loop): Set can_be_parallel_valid_p to false.
            * cfgloop.h: Add can_be_parallel_valid_p field.
            * cfgloopmanip.cc (copy_loop_info): Add assert.
            * config/nvptx/nvptx.cc (nvptx_goacc_reduction_setup):
            * doc/invoke.texi: Adjust param openacc-kernels description.
            * doc/passes.texi: Adjust pass_ipa_oacc_kernels description.
            * flag-types.h (enum openacc_kernels):Add
            OPENACC_KERNELS_DECOMPOSE_PARLOOPS.
            * gimple-pretty-print.cc (dump_gimple_omp_target): Handle
            GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE.
            * gimple.h (enum gf_mask): Add
            GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE and
            widen GF_OMP_TARGET_KIND_MASK.
            (is_gimple_omp_oacc): Handle
            GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE.
            (is_gimple_omp_offloaded): Likewise.
            * gimplify.cc (gimplify_omp_for): Enable reduction localization
            for "kernels" regions.
            (gimplify_omp_workshare): Likewise.
            * graphite-dependences.cc (scop_get_reads_and_writes): Handle
            "kills" and "reduction" PDRs.
            (apply_schedule_on_deps): Add dump output for intermediate
            steps of the dependence computation to enable understanding
            of unexpected dependences.
            (carries_deps): Likewise.
            (scop_get_dependences): Handle "kill" operations and add dump
            output.
            * graphite-isl-ast-to-gimple.cc (visit_schedule_loop_node): New function.
            (graphite_oacc_analyze_scop): New function.
            * graphite-optimize-isl.cc (optimize_isl): Remove "static" and
            add argument to identify OpenACC use; don't fail on unchanged
            schedule in this case.
            * graphite-poly.cc (new_poly_dr): Handle "kills".
            (print_pdr): Likewise.
            (new_gimple_poly_bb): Likewise.
            (free_gimple_poly_bb): Likewise.
            (new_scop): Handle "reduction", "private", and "firstprivate"
            hash sets.
            (free_scop): Likewise.
            (print_isl_space): New function.
            (debug_isl_space): New function.
            * graphite-scop-detection.cc (scop_detection::can_represent_loop):
            Don't fail if niter is 0 in OpenACC functions.
            (scop_detection::add_scop): Don't reject regions with only one
            loop in OpenACC functions.
            (ignored_oacc_internal_call_p): New function.
            (scan_tree_for_params): Handle VIEW_CONVERT_EXPR.
            (stmt_has_side_effects): Ignore internal OpenACC function calls.
            (add_write): Likewise.
            (add_read): Likewise.
            (add_kill): New function.
            (add_kills): New function.
            (add_oacc_kills): New function.
            (try_generate_gimple_bb): Kill false dependences for OpenACC
            "private"/"firstprivate" vars.
            (gather_bbs::gather_bbs): Determin OpenACC
            "private"/"firstprivate" vars in region.
            (gather_bbs::before_dom_children): Add assert.
            (determine_openacc_reductions): New function.
            (build_scops): Determine OpenACC "reduction" vars in SCoP.
            * graphite-sese-to-poly.cc (oacc_ifn_call_extract): New declaration.
            (oacc_internal_call_p): New function.
            (build_poly_dr): Ignore internal OpenACC function calls,
            handle "reduction" refs.
            (build_poly_sr): Likewise; handle "kill" operations.
            * graphite.cc (graphite_transform_loops): Accept functions with
            only a single loop.
            (oacc_enable_graphite_p): New function.
            (gate_graphite_transforms): Enable pass on OpenACC functions.
            * graphite.h (enum poly_dr_type): Add PDR_KILL.
            (struct poly_dr): Add "is_reduction" field.
            (new_poly_dr): Add argument to declaration.
            (pdr_kill_p): New function.
            (print_isl_space): New declaration.
            (debug_isl_space): New declaration.
            (struct scop): Add fields "reductions_vars",
            "oacc_firstprivate_vars", and "oacc_private_scalars".
            (optimize_isl): New declaration.
            (graphite_oacc_analyze_scop): New declaration.
            * internal-fn.cc (expand_UNIQUE): Handle
            IFN_UNIQUE_OACC_PRIVATE_SCALAR and IFN_UNIQUE_OACC_FIRSTPRIVATE
            * internal-fn.h: Add OACC_PRIVATE_SCALAR and OACC_FIRSTPRIVATE
            * omp-expand.cc (struct omp_region): Adjust comment.
            (expand_omp_taskloop_for_inner):
            (expand_omp_for): Add asserts about expected "kernels" region types.
            (mark_loops_in_oacc_kernels_region): Likewise.
            (expand_omp_target): Likewise; handle
            GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE.
            (build_omp_regions_1): Handle
            GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE.
            Likewise.
            (omp_make_gimple_edges): Likewise.
            * omp-general.cc (oacc_get_kernels_attrib): New function.
            (oacc_get_fn_dim_size): Allow argument to be NULL.
            * omp-general.h (oacc_get_kernels_attrib): New declaration.
            * omp-low.cc (struct omp_context): Add fields
            "oacc_firstprivate_vars" and "oacc_private_scalars".
            (was_originally_oacc_kernels): New function.
            (is_oacc_kernels):
            (is_oacc_kernels_decomposed_graphite_part): New function.
            (new_omp_context): Allocate "oacc_first_private_vars" and
            "oacc_private_scalars" ...
            (delete_omp_context): ... and free from here.
            (oacc_record_firstprivate_var_clauses): New function.
            (oacc_record_private_scalars): New function.
            (scan_sharing_clauses): Call functions to record "private"
            scalars and "firstprivate" variables.
            (check_oacc_kernel_gwv): Add assert.
            (ctx_in_oacc_kernels_region): Handle
            GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE.
            (scan_omp_for): Likewise.
            (check_omp_nesting_restrictions): Likewise.
            (lower_oacc_head_mark): Likewise.
            (lower_omp_for): Likewise.
            (lower_omp_target): Create "private" and "firstprivate" marker
            call statements.
            (lower_oacc_head_tail): Adjust "private" and "firstprivate"
            marker calls.
            (lower_oacc_reductions): Emit "private" and "firstprivate"
             marker call statements.
            (make_oacc_firstprivate_vars_marker): New function.
            (make_oacc_private_scalars_marker): New function.
            * omp-oacc-kernels-decompose.cc (adjust_region_code_walk_stmt_fn):
            Assign GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GRAPHITE to
            region using the new "kernels" handling.
            (make_region_seq): Adjust default region type for new
            "kernels" handling; no more exceptions, let Graphite handle everything.
            (make_region_loop_nest): Likewise; add dump output and assert.
            (adjust_nested_loop_clauses): Stop creating "auto" clauses if
            loop has "independent", "gang" etc.
            (transform_kernels_loop_clauses): Likewise.
            * omp-offload.cc (oacc_extract_loop_call): New function.
            (oacc_loop_get_cfg_loop): New function.
            (can_be_parallel_str): New function.
            (oacc_loop_can_be_parallel_p): New function.
            (oacc_parallel_kernels_graphite_fun_p): New function.
            (oacc_parallel_fun_p): New function.
            (oacc_loop_transform_auto_into_independent): New function, ...
            (oacc_loop_fixed_partitions): ... called from here to transfer
            the result of Graphite's analysis to the loop.
            (execute_oacc_loop_designation): Handle "oacc
            functions with "parallel_kernels_graphite" attribute.
            (execute_oacc_device_lower): Handle
            IFN_UNIQUE_OACC_PRIVATE_SCALAR and IFN_UNIQUE_OACC_FIRSTPRIVATE.
            * omp-offload.h (oacc_extract_loop_call): Add declaration.
            * params.opt: Add "param=openacc-kernels" value "decompose-parloops".
            * sese.cc (scalar_evolution_in_region): "Redirect" SCEV
            analysis to outer loop for IFN_GOACC_LOOP calls.
            * sese.h: Add field "kill_scalar_refs".
            * tree-chrec.cc (chrec_fold_plus_1): Handle VIEW_CONVERT_EXPR
            like CASE_CONVERT.
            * tree-data-ref.cc (dump_data_reference): Include
            DR_BASE_ADDRESS and DR_OFFSET in dump output.
            (get_references_in_stmt): Don't reject OpenACC internal function
            calls.
            (graphite_find_data_references_in_stmt): Remove unused variable.
            * tree-parloops.cc (pass_parallelize_loops::execute): Disable
            pass with the new kernels handling, enable if requested explicitly.
            * tree-scalar-evolution.cc (set_scev_analyze_openacc_calls):
            Set flag to enable the analysis of internal OpenACC function
            calls (use for Graphite only).
            (oacc_call_analyzable_p): New function.
            (oacc_ifn_call_extract): New function.
            (oacc_simplify): New function.
            (add_to_evolution): Simplify OpenACC internal function calls
            if applicable.
            (follow_ssa_edge_binary): Likewise.
            (follow_ssa_edge_expr): Likewise.
            (follow_copies_to_constant): Likewise.
            (analyze_initial_condition): Likewise.
            (interpret_loop_phi): Likewise.
            (interpret_gimple_call): New function.
            (interpret_rhs_expr): Likewise.
            (instantiate_scev_name): Likewise.
            (analyze_scalar_evolution_1): Handle GIMPLE_CALL, handle default definitions.
            (expression_expensive_p): Consider internal OpenACC calls to
            be cheap.
            * tree-scalar-evolution.h (set_scev_analyze_openacc_calls):
            New declaration.
            (oacc_call_analyzable_p): New declaration.
            * tree-ssa-dce.cc (mark_stmt_if_obviously_necessary): Mark
            lhs of internal OpenACC function calls necessary.
            * tree-ssa-ifcombine.c (recognize_if_then_else):
            * tree-ssa-loop-niter.cc (oacc_call_analyzable_p):
            (oacc_ifn_call_extract): New declaration.
            (interpret_gimple_call): New delcaration.
            (expand_simple_operations): Handle internal OpenACC function calls.
            * tree-ssa-loop.cc (gate_oacc_kernels): Disable for new
            "kernels" handling.
            * graphite-oacc.cc: New file.
            * graphite-oacc.h: New file.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* common.opt: Add fgraphite-runtime-alias-checks.
	* graphite-isl-ast-to-gimple.cc
	(generate_alias_cond): New function.
	(graphite_regenerate_ast_isl): Use from here.
	* graphite-poly.cc (new_scop): Create unhandled_alias_ddrs vec ...
	(free_scop): and release here.
	* graphite-scop-detection.cc (dr_defs_outside_region): New function.
	(dr_well_analyzed_for_runtime_alias_check_p): New function.
	(graphite_runtime_alias_check_p): New function.
	(build_alias_set): Record unhandled alias ddrs for later alias check
	creation if flag_graphite_runtime_alias_checks is true instead
	of failing.
	* graphite.h (struct scop): Add field unhandled_alias_ddrs.
	* sese.h (has_operands_from_region_p): New function.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* tree-loop-distribution.cc (data_ref_segment_size): Remove function.
	(latch_dominated_by_data_ref): Likewise.
	(compute_alias_check_pairs): Likewise.

	* tree-data-ref.cc (data_ref_segment_size): New function,
	copied from tree-loop-distribution.c
	(compute_alias_check_pairs): Likewise.
	(latch_dominated_by_data_ref): Likewise.

	* tree-data-ref.h (compute_alias_check_pairs): New declaration.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* predict.cc (pass_profile::execute): Fix dump message.

2021-11-16  Frederik Harwath <frederik@codesourcery.com>
	    Thomas Schwinge <thomas@codesourcery.com>

	* omp-general.cc (oacc_get_fn_dim_size): Return 0 on
	missing "dims".
	* omp-offload.cc (pass_oacc_loop_designation::clone): New
	member function.
	(pass_oacc_gimple_workers::clone): Likewise.
	(pass_oacc_gimple_device_lower::clone): Likewise.
	* passes.cc (pass_data_no_loop_optimizations): New pass_data.
	(class pass_no_loop_optimizations): New pass.
	(make_pass_no_loop_optimizations): New function.
	* passes.def: Move pass_oacc_{loop_designation,
	gimple_workers, device_lower} into tree_loop, and add
	copies to pass_tree_no_loop and to new
	pass_no_loop_optimizations.  Add copies of passes pass_ccp,
	pass_ipa_warn, pass_complete_unrolli, pass_backprop,
	pass_phiprop, pass_fix_loops after the OpenACC passes
	in pass_tree_loop.
	* tree-ssa-loop-ivcanon.cc (pass_complete_unroll::clone):
	New member function.
	(pass_complete_unrolli::clone): Likewise.
	* tree-ssa-loop.cc (pass_fix_loops::clone): Likewise.
	(pass_tree_loop_init::clone): Likewise.
	(pass_tree_loop_done::clone): Likewise.
	* tree-ssa-phiprop.cc (pass_phiprop::clone): Likewise.

2021-11-16  Sandra Loosemore <sandra@codesourcery.com>
	    Tobias Burnus  <tobias@codesourcery.com>

	* expr.cc (get_inner_reference): Handle NOP_EXPR like
	VIEW_CONVERT_EXPR.

2021-11-16  Frederik Harwath  <frederik@codesourcery.com>

	* tree-cfg.h (gimple_debug_cfg): Change argument type from int
	to dump_flags_t.

2021-04-07  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-low.cc (is_oacc_parallel_or_serial): Handle
	GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_PARALLELIZED and
	GF_OMP_TARGET_KIND_OACC_PARALLEL_KERNELS_GANG_SINGLE.

2021-03-04  Andrew Stubbs <ams@codesourcery.com>

	* dwarf2out.cc (notional_parents_list): New file variable.
	(gen_subprogram_die): Record offload kernel functions in
	notional_parents_list.
	(fixup_notional_parents): New function.
	(dwarf2out_finish): Call fixup_notional_parents.
	(dwarf2out_c_finalize): Reset notional_parents_list.

2021-03-01  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* omp-expand.cc (expand_oacc_for): Convert .tile variable to
	diff_type before multiplying.
	* omp-general.cc (omp_extract_for_data): Use accumulated precision
	of all collapsed for-loops as precision of iteration variable, up
	to the precision of a long long.

2021-02-26  Andrew Stubbs  <ams@codesourcery.com>

	* dwarf2out.cc (gen_subprogram_die): Replace existing low/high PC
	attributes, rather than ICE.

2021-02-01  Chung-Lin Tang  <cltang@codesourcery.com>

	* omp-low.cc (install_var_field): Add new 'tree key_expr = NULL_TREE'
	default parameter. Set splay-tree lookup key to key_expr instead of
	var if key_expr is non-NULL. Adjust call to install_parm_decl.
	Update comments.
	(scan_sharing_clauses): Use clause tree expression as splay-tree key
	for map/to/from and OpenACC firstprivate cases when installing the
	variable field into the send/receive record type.
	(maybe_lookup_field_in_outer_ctx): Add code to search through
	construct clauses instead of entirely based on splay-tree lookup.
	(lower_oacc_reductions): Adjust to find map-clause of reduction
	variable, then create receiver-ref.
	(lower_omp_target): Adjust to lookup var field using clause expression.

2021-01-16  Andrew Stubbs  <ams@codesourcery.com>

	* dwarf2out.cc (gen_subprogram_die): Check offload attributes only.

2021-01-15  Andrew Stubbs  <ams@codesourcery.com>

	* dwarf2out.cc (add_location_or_const_value_attribute): Set
	DW_AT_address_class, if appropriate.

2020-12-06  Andrew Stubbs  <ams@codesourcery.com>

	* dwarf2out.cc (gen_subprogram_die): Add high/low_pc attributes for
	parents of offload kernels.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* doc/tm.texi.in (TARGET_VECTORIZE_PREFER_GATHER_SCATTER): Add
	documentation hook.
	* doc/tm.texi: Regenerate.
	* target.def (prefer_gather_scatter): Add target hook under vectorizer.
	* tree-vect-stmts.cc (get_group_load_store_type): Optionally prefer
	gather/scatter instructions to scalar/elementwise fallback.
	* config/gcn/gcn.cc (TARGET_VECTORIZE_PREFER_GATHER_SCATTER): Define
	hook.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* omp-offload.cc (oacc_thread_numbers): Add VF_BY_VECTORIZER parameter.
	Add overloaded wrapper for previous arguments & behaviour.
	(oacc_xform_loop): Lower vector loops to iterate a multiple of
	omp_max_vf times over contiguous steps on non-SIMT targets.

2020-08-19  Sandra Loosemore  <sandra@codesourcery.com>

	Add a "combined" flag for "acc kernels loop" etc directives.

	* tree.h (OACC_LOOP_COMBINED): New.

2020-06-03  Tobias Burnus  <tobias@codesourcery.com>

	* gimplify.cc (localize_reductions): Do not create local
	variable for privatized arrays.

2020-03-27  Sandra Loosemore  <sandra@codesourcery.com>

	* doc/invoke.texi (Option Summary): Add entries for
	-Wopenacc-kernels-annotate-loops and
	-fno-openacc-kernels-annotate-loops.
	(Warning Options): Document -Wopenacc-kernels-annotate-loops.
	(Optimization Options): Document -fno-openacc-kernels-annotate-loops.

2020-02-06  Tobias Burnus  <tobias@codesourcery.com>

	* omp-low.c (convert_from_firstprivate_int):
	Use VIEW_CONVERT also for vectors.

2020-02-19  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (gimplify_scan_omp_clauses): Handle
	GOMP_MAP_DECLARE_ALLOCATE and GOMP_MAP_DECLARE_DEALLOCATE.

2018-10-04  Cesar Philippidis  <cesar@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	* omp-low.c (scan_sharing_clauses): Update handling of OpenACC declare
	create, declare copyin and declare deviceptr to have local lifetimes.
	(convert_to_firstprivate_int): Handle pointer types.
	(convert_from_firstprivate_int): Likewise.  Create local storage for
	the values being pointed to.  Add new orig_type argument.
	(lower_omp_target): Handle GOMP_MAP_DECLARE_{ALLOCATE,DEALLOCATE}.
	Add orig_type argument to convert_from_firstprivate_int call.
	Allow pointer types with GOMP_MAP_FIRSTPRIVATE_INT.  Don't privatize
	firstprivate VLAs.
	* tree-pretty-print.c (dump_omp_clause): Handle
	GOMP_MAP_DECLARE_{ALLOCATE,DEALLOCATE}.

2019-09-20  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (localize_reductions): Rewrite references for
	OMP_CLAUSE_PRIVATE also.

2019-09-17  Tobias Burnus  <tobias@codesourcery.com>

	* gimplify.cc (gomp_oacc_needs_data_present): Remove unused variable.

2019-09-06  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (gimplify_omp_for): Use for_stmt in call to
	localize_reductions.

2019-09-06  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (gimplify_omp_workshare): Use OMP_CLAUSES, OMP_BODY
	instead of OMP_TARGET_CLAUSES, OMP_TARGET_BODY.

2019-09-05  Cesar Philippidis  <cesar@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (privatize_reduction): New struct.
	(localize_reductions_r, localize_reductions): New functions.
	(gimplify_omp_for): Call localize_reductions.
	(gimplify_omp_workshare): Likewise.
	* omp-low.cc (lower_oacc_reductions): Handle localized reductions.
	Create fewer temp vars.
	* tree-core.h (omp_clause_code): Add OMP_CLAUSE_REDUCTION_PRIVATE_DECL
	documentation.
	* tree.cc (omp_clause_num_ops): Bump number of ops for
	OMP_CLAUSE_REDUCTION to 6.
	(walk_tree_1): Adjust accordingly.
	* tree.h (OMP_CLAUSE_REDUCTION_PRIVATE_DECL): Add macro.

2019-07-10  Cesar Philippidis  <cesar@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (gimplify_adjust_omp_clauses_1): Raise error for
	assumed-size arrays in map clauses for Fortran/OpenMP.
	* omp-low.cc (lower_omp_target): Set the size of assumed-size Fortran
	arrays to one to allow use of data already mapped on the offload device.

2019-05-20  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (gimplify_adjust_omp_clauses_1): Support implied no_alloc
	and optional arguments based on mappings in enclosing data regions.

2019-05-19  Julian Brown  <julian@codesourcery.com>

	* gimplify.cc (oacc_array_mapping_info): Add REF field.
	(gimplify_scan_omp_clauses): Initialise above field for data blocks
	passed by reference.
	(gomp_oacc_needs_data_present): Handle references.
	(gimplify_adjust_omp_clauses_1): Handle references and optional
	arguments for variables declared in lexically-enclosing OpenACC data
	region.

2019-01-23  Thomas Schwinge  <thomas@codesourcery.com>

	* params.opt (openacc_kernels): Default to decompose.

2018-09-05  Cesar Philippidis  <cesar@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>

	* gimplify.cc (omp_add_variable): Enable firstprivate reduction
	variables.

2018-09-20  Cesar Philippidis  <cesar@codesourcery.com>

	* omp-low.cc (lower_oacc_head_mark): Don't mark OpenACC auto
	loops as independent inside acc parallel regions.

2018-12-22  Cesar Philippidis  <cesar@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>
            Tobias Burnus  <tobias@codesourcery.com>

	* omp-low.cc (maybe_lookup_field_in_outer_ctx): New function.
	(convert_to_firstprivate_int): New function.
	(convert_from_firstprivate_int): New function.
	(lower_omp_target): Enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC.
	Remove unused variable.

2018-08-28  Julian Brown  <julian@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

	* gimplify.cc (oacc_array_mapping_info): New struct.
	(gimplify_omp_ctx): Add decl_data_clause hash map.
	(new_omp_context): Zero-initialise above.
	(delete_omp_context): Delete above if allocated.
	(gimplify_scan_omp_clauses): Scan for array mappings on data constructs,
	and record in above map.
	(gomp_oacc_needs_data_present): New function.
	(gimplify_adjust_omp_clauses_1): Handle data mappings (e.g. array
	slices) declared in lexically-enclosing data constructs.
	* omp-low.cc (lower_omp_target): Allow decl for bias not to be present
	in OpenACC context.

2018-10-05  Nathan Sidwell  <nathan@acm.org>
	    Tom de Vries  <tdevries@suse.de>
	    Thomas Schwinge  <thomas@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	* doc/invoke.texi (fopenacc-dim): Update.
	* omp-offload.cc (oacc_parse_default_dims): Update.

2019-09-20  Chung-Lin Tang <cltang@codesourcery.com>
	    Cesar Philippidis  <cesar@codesourcery.com>

	* omp-expand.cc (struct omp_region): Add inside_kernels_p field.
	(expand_omp_for_generic): Adjust to generate a 'sequential' loop
	when GOMP builtin arguments are BUILT_IN_NONE.
	(expand_omp_for): Use expand_omp_for_generic to generate a
	non-parallelized loop for OMP_FORs inside OpenACC kernels regions.
	(expand_omp): Mark inside_kernels_p field true for regions
	nested inside OpenACC kernels constructs.

2018-09-20  Cesar Philippidis  <cesar@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	* omp-low.c (install_var_field): New base_pointer_restrict
	argument.
	(scan_sharing_clauses): Update call to install_var_field.
	(omp_target_base_pointers_restrict_p): New function.
	(scan_omp_target): Update call to install_var_field.

2018-10-30  Cesar Philippidis  <cesar@codesourcery.com>

	* config/nvptx/nvptx.cc (nvptx_propagate_unified): New.
	(nvptx_split_blocks): Call it for cond_uni insn.
	(nvptx_expand_cond_uni): New.
	(enum nvptx_builtins): Add NVPTX_BUILTIN_COND_UNI.
	(nvptx_init_builtins): Initialize it.
	(nvptx_expand_builtin):
	(nvptx_generate_vector_shuffle): Change integral SHIFT operand to
	tree BITS operand.
	(nvptx_vector_reduction): New.
	(nvptx_adjust_reduction_type): New.
	(nvptx_goacc_reduction_setup): Use it to adjust the type of ref_to_res.
	(nvptx_goacc_reduction_init): Don't update LHS if it doesn't exist.
	(nvptx_goacc_reduction_fini): Call nvptx_vector_reduction for vector.
	Use it to adjust the type of ref_to_res.
	(nvptx_goacc_reduction_teardown):
	* config/nvptx/nvptx.md (cond_uni): New pattern.

2018-06-29  Cesar Philippidis  <cesar@codesourcery.com>
	    James Norris  <jnorris@codesourcery.com>

	* gimplify.cc (enum gimplify_omp_var_data): Add GOVD_DEVICETPR.
	(omp_notice_variable): Add GOVD_DEVICEPTR attribute when appropriate.
	(gimplify_scan_omp_clauses): Add GOVD_DEVICEPTR attribute when
	appropriate.
	(gimplify_adjust_omp_clauses_1): Set GOMP_MAP_FORCE_DEVICEPTR for
	implicit deviceptr mappings.

2020-04-19  Chung-Lin Tang  <cltang@codesourcery.com>

	PR other/76739

	* builtin-types.def (BT_FN_VOID_INT_SIZE_PTR_PTR_PTR_VAR): New type.
	* omp-builtins.def (BUILT_IN_GOACC_DATA_START): Adjust function type
	to new BT_FN_VOID_INT_SIZE_PTR_PTR_PTR_VAR.
	* gimplify.cc (gimplify_scan_omp_clauses): Skip gimplification of
	OMP_CLAUSE_SIZE of non-contiguous array maps (which is a TREE_LIST).
	* omp-expand.cc (expand_omp_target): Add non-contiguous array descriptor
	pointers to variadic arguments.
	* omp-low.cc (append_field_to_record_type): New function.
	(create_noncontig_array_descr_type): Likewise.
	(create_noncontig_array_descr_init_code): Likewise.
	(scan_sharing_clauses): For non-contiguous array map kinds, check for
	supported dimension structure, and install non-contiguous array
	variable into current omp_context.
	(reorder_noncontig_array_clauses): New function.
	(scan_omp_target): Call reorder_noncontig_array_clauses to place
	non-contiguous array map clauses at beginning of clause sequence.
	(lower_omp_target): Add handling for non-contiguous array map kinds,
	add all created non-contiguous array descriptors to
	gimple_omp_target_data_arg.

2022-06-20  Kwok Cheung Yeung  <kcy@codesourcery.com>

	* Makefile.in (REVISION_s): Change default message.