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This patch partially enables use of the OpenMP interop construct by adding
middle end support, mostly in the omplower pass, and in the target-independent
part of the libgomp runtime. It follows up on previous patches for C, C++ and
Fortran front ends support. The full interop feature requires another patch to
enable foreign runtime support in libgomp plugins.
gcc/ChangeLog:
* builtin-types.def
(BT_FN_VOID_INT_INT_PTR_PTR_PTR_INT_PTR_INT_PTR_UINT_PTR): New.
* gimple-low.cc (lower_stmt): Handle GIMPLE_OMP_INTEROP.
* gimple-pretty-print.cc (dump_gimple_omp_interop): New function.
(pp_gimple_stmt_1): Handle GIMPLE_OMP_INTEROP.
* gimple.cc (gimple_build_omp_interop): New function.
(gimple_copy): Handle GIMPLE_OMP_INTEROP.
* gimple.def (GIMPLE_OMP_INTEROP): Define.
* gimple.h (gimple_build_omp_interop): Declare.
(gimple_omp_interop_clauses): New function.
(gimple_omp_interop_clauses_ptr): Likewise.
(gimple_omp_interop_set_clauses): Likewise.
(gimple_return_set_retval): Handle GIMPLE_OMP_INTEROP.
* gimplify.cc (gimplify_scan_omp_clauses): Handle OMP_CLAUSE_INIT,
OMP_CLAUSE_USE and OMP_CLAUSE_DESTROY.
(gimplify_omp_interop): New function.
(gimplify_expr): Replace sorry with call to gimplify_omp_interop.
* omp-builtins.def (BUILT_IN_GOMP_INTEROP): Define.
* omp-low.cc (scan_sharing_clauses): Handle OMP_CLAUSE_INIT,
OMP_CLAUSE_USE and OMP_CLAUSE_DESTROY.
(scan_omp_1_stmt): Handle GIMPLE_OMP_INTEROP.
(lower_omp_interop_action_clauses): New function.
(lower_omp_interop): Likewise.
(lower_omp_1): Handle GIMPLE_OMP_INTEROP.
gcc/c/ChangeLog:
* c-parser.cc (c_parser_omp_clause_destroy): Make addressable.
(c_parser_omp_clause_init): Make addressable.
gcc/cp/ChangeLog:
* parser.cc (cp_parser_omp_clause_init): Make addressable.
gcc/fortran/ChangeLog:
* trans-openmp.cc (gfc_trans_omp_clauses): Make OMP_CLAUSE_DESTROY and
OMP_CLAUSE_INIT addressable.
* types.def (BT_FN_VOID_INT_INT_PTR_PTR_PTR_INT_PTR_INT_PTR_UINT_PTR):
New.
include/ChangeLog:
* gomp-constants.h (GOMP_DEVICE_DEFAULT_OMP_61, GOMP_INTEROP_TARGET,
GOMP_INTEROP_TARGETSYNC, GOMP_INTEROP_FLAG_NOWAIT): Define.
libgomp/ChangeLog:
* icv-device.c (omp_set_default_device): Check
GOMP_DEVICE_DEFAULT_OMP_61.
* libgomp-plugin.h (struct interop_obj_t): New.
(enum gomp_interop_flag): New.
(GOMP_OFFLOAD_interop): Declare.
(GOMP_OFFLOAD_get_interop_int): Declare.
(GOMP_OFFLOAD_get_interop_ptr): Declare.
(GOMP_OFFLOAD_get_interop_str): Declare.
(GOMP_OFFLOAD_get_interop_type_desc): Declare.
* libgomp.h (_LIBGOMP_OMP_LOCK_DEFINED): Define.
(struct gomp_device_descr): Add interop_func, get_interop_int_func,
get_interop_ptr_func, get_interop_str_func, get_interop_type_desc_func.
* libgomp.map: Add GOMP_interop.
* libgomp_g.h (GOMP_interop): Declare.
* target.c (resolve_device): Handle GOMP_DEVICE_DEFAULT_OMP_61.
(omp_get_interop_int): Replace stub with actual implementation.
(omp_get_interop_ptr): Likewise.
(omp_get_interop_str): Likewise.
(omp_get_interop_type_desc): Likewise.
(struct interop_data_t): Define.
(gomp_interop_internal): New function.
(GOMP_interop): Likewise.
(gomp_load_plugin_for_device): Load symbols for get_interop_int,
get_interop_ptr, get_interop_str and get_interop_type_desc.
* testsuite/libgomp.c-c++-common/interop-1.c: New test.
gcc/testsuite/ChangeLog:
* c-c++-common/gomp/interop-1.c: Remove dg-prune-output "sorry".
* c-c++-common/gomp/interop-2.c: Likewise.
* c-c++-common/gomp/interop-3.c: Likewise.
* c-c++-common/gomp/interop-4.c: Remove dg-message "not supported".
* g++.dg/gomp/interop-5.C: Likewise.
* gfortran.dg/gomp/interop-4.f90: Likewise.
* c-c++-common/gomp/interop-5.c: New test.
* gfortran.dg/gomp/interop-5.f90: New test.
Co-authored-by: Tobias Burnus <tburnus@baylibre.com>
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