683f118439
Handle reverse_offload, unified_address, and unified_shared_memory requirements in libgomp by saving them alongside the offload table. When the device lto1 runs, it extracts the data for mkoffload. The latter than passes the value on to GOMP_offload_register_ver. lto1 (either the host one, with -flto [+ ENABLE_OFFLOADING], or in the offload-device lto1) also does the the consistency check is done, erroring out when the 'omp requires' clause use is inconsistent. For all in-principle supported devices, if a requirement cannot be fulfilled, the device is excluded from the (supported) devices list. Currently, none of those requirements are marked as supported for any of the non-host devices. gcc/c/ChangeLog: * c-parser.cc (c_parser_omp_target_data, c_parser_omp_target_update, c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Set OMP_REQUIRES_TARGET_USED. (c_parser_omp_requires): Remove sorry. gcc/ChangeLog: * config/gcn/mkoffload.cc (process_asm): Write '#include <stdint.h>'. (process_obj): Pass omp_requires_mask to GOMP_offload_register_ver. (main): Ask lto1 to obtain omp_requires_mask and pass it on. * config/nvptx/mkoffload.cc (process, main): Likewise. * lto-cgraph.cc (omp_requires_to_name): New. (input_offload_tables): Save omp_requires_mask. (output_offload_tables): Read it, check for consistency, save value for mkoffload. * omp-low.cc (lower_omp_target): Force output_offloadtables call for OMP_REQUIRES_TARGET_USED. gcc/cp/ChangeLog: * parser.cc (cp_parser_omp_target_data, cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data, cp_parser_omp_target_update): Set OMP_REQUIRES_TARGET_USED. (cp_parser_omp_requires): Remove sorry. gcc/fortran/ChangeLog: * openmp.cc (gfc_match_omp_requires): Remove sorry. * parse.cc (decode_omp_directive): Don't regard 'declare target' as target usage for 'omp requires'; add more flags to omp_requires_mask. include/ChangeLog: * gomp-constants.h (GOMP_VERSION): Bump to 2. (GOMP_REQUIRES_UNIFIED_ADDRESS, GOMP_REQUIRES_UNIFIED_SHARED_MEMORY, GOMP_REQUIRES_REVERSE_OFFLOAD, GOMP_REQUIRES_TARGET_USED): New defines. libgomp/ChangeLog: * libgomp-plugin.h (GOMP_OFFLOAD_get_num_devices): Add omp_requires_mask arg. * plugin/plugin-gcn.c (GOMP_OFFLOAD_get_num_devices): Likewise; return -1 when device available but omp_requires_mask != 0. * plugin/plugin-nvptx.c (GOMP_OFFLOAD_get_num_devices): Likewise. * oacc-host.c (host_get_num_devices, host_openacc_get_property): Update call. * oacc-init.c (resolve_device, acc_init_1, acc_shutdown_1, goacc_attach_host_thread_to_device, acc_get_num_devices, acc_set_device_num, get_property_any): Likewise. * target.c (omp_requires_mask): New global var. (gomp_requires_to_name): New. (GOMP_offload_register_ver): Handle passed omp_requires_mask. (gomp_target_init): Handle omp_requires_mask. * libgomp.texi (OpenMP 5.0): Update requires impl. status. (OpenMP 5.1): Add a missed item. (OpenMP 5.2): Mark linear-clause change as supported in C/C++. * testsuite/libgomp.c-c++-common/requires-1-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-1.c: New test. * testsuite/libgomp.c-c++-common/requires-2-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-2.c: New test. * testsuite/libgomp.c-c++-common/requires-3-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-3.c: New test. * testsuite/libgomp.c-c++-common/requires-4-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-4.c: New test. * testsuite/libgomp.c-c++-common/requires-5-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-5.c: New test. * testsuite/libgomp.c-c++-common/requires-6.c: New test. * testsuite/libgomp.c-c++-common/requires-7-aux.c: New test. * testsuite/libgomp.c-c++-common/requires-7.c: New test. * testsuite/libgomp.fortran/requires-1-aux.f90: New test. * testsuite/libgomp.fortran/requires-1.f90: New test. liboffloadmic/ChangeLog: * plugin/libgomp-plugin-intelmic.cpp (GOMP_OFFLOAD_get_num_devices): Return -1 when device available but omp_requires_mask != 0. gcc/testsuite/ChangeLog: * c-c++-common/gomp/requires-4.c: Update dg-*. * c-c++-common/gomp/reverse-offload-1.c: Likewise. * c-c++-common/gomp/target-device-ancestor-2.c: Likewise. * c-c++-common/gomp/target-device-ancestor-3.c: Likewise. * c-c++-common/gomp/target-device-ancestor-4.c: Likewise. * c-c++-common/gomp/target-device-ancestor-5.c: Likewise. * gfortran.dg/gomp/target-device-ancestor-3.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-4.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-5.f90: Likewise. * gfortran.dg/gomp/target-device-ancestor-2.f90: Likewise. Move post-FE checks to ... * gfortran.dg/gomp/target-device-ancestor-2a.f90: ... this new file. * gfortran.dg/gomp/requires-8.f90: Update as we don't regard 'declare target' for the 'requires' usage requirement. Co-authored-by: Chung-Lin Tang <cltang@codesourcery.com> Co-authored-by: Thomas Schwinge <thomas@codesourcery.com> |
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| c++tools | ||
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