b7e2048063
This patch implements relaxing the requirements when a map with the implicit attribute encounters an overlapping existing map. As the OpenMP 5.0 spec describes on page 320, lines 18-27 (and 5.1 spec, page 352, lines 13-22): "If a single contiguous part of the original storage of a list item with an implicit data-mapping attribute has corresponding storage in the device data environment prior to a task encountering the construct that is associated with the map clause, only that part of the original storage will have corresponding storage in the device data environment as a result of the map clause." 2021-11-12 Chung-Lin Tang <cltang@codesourcery.com> include/ChangeLog: * gomp-constants.h (GOMP_MAP_FLAG_SPECIAL_3): Define special bit macro. (GOMP_MAP_IMPLICIT): New special map kind bits value. (GOMP_MAP_FLAG_SPECIAL_BITS): Define helper mask for whole set of special map kind bits. (GOMP_MAP_IMPLICIT_P): New predicate macro for implicit map kinds. gcc/ChangeLog: * tree.h (OMP_CLAUSE_MAP_RUNTIME_IMPLICIT_P): New access macro for 'implicit' bit, using 'base.deprecated_flag' field of tree_node. * tree-pretty-print.c (dump_omp_clause): Add support for printing implicit attribute in tree dumping. * gimplify.c (gimplify_adjust_omp_clauses_1): Set OMP_CLAUSE_MAP_RUNTIME_IMPLICIT_P to 1 if map clause is implicitly created. (gimplify_adjust_omp_clauses): Adjust place of adding implicitly created clauses, from simple append, to starting of list, after non-map clauses. * omp-low.c (lower_omp_target): Add GOMP_MAP_IMPLICIT bits into kind values passed to libgomp for implicit maps. gcc/testsuite/ChangeLog: * c-c++-common/gomp/target-implicit-map-1.c: New test. * c-c++-common/goacc/combined-reduction.c: Adjust scan test pattern. * c-c++-common/goacc/firstprivate-mappings-1.c: Likewise. * c-c++-common/goacc/mdc-1.c: Likewise. * g++.dg/goacc/firstprivate-mappings-1.C: Likewise. libgomp/ChangeLog: * target.c (gomp_map_vars_existing): Add 'bool implicit' parameter, add implicit map handling to allow a "superset" existing map as valid case. (get_kind): Adjust to filter out GOMP_MAP_IMPLICIT bits in return value. (get_implicit): New function to extract implicit status. (gomp_map_fields_existing): Adjust arguments in calls to gomp_map_vars_existing, and add uses of get_implicit. (gomp_map_vars_internal): Likewise. * testsuite/libgomp.c-c++-common/target-implicit-map-1.c: New test. |
||
|---|---|---|
| .. | ||
| gdb | ||
| ansidecl.h | ||
| btf.h | ||
| ChangeLog | ||
| ChangeLog-9103 | ||
| ChangeLog.jit | ||
| COPYING | ||
| COPYING3 | ||
| ctf.h | ||
| demangle.h | ||
| dwarf2.def | ||
| dwarf2.h | ||
| dyn-string.h | ||
| environ.h | ||
| fibheap.h | ||
| filenames.h | ||
| floatformat.h | ||
| fnmatch.h | ||
| gcc-c-fe.def | ||
| gcc-c-interface.h | ||
| gcc-cp-fe.def | ||
| gcc-cp-interface.h | ||
| gcc-interface.h | ||
| getopt.h | ||
| gomp-constants.h | ||
| hashtab.h | ||
| hsa_ext_amd.h | ||
| hsa_ext_image.h | ||
| hsa.h | ||
| leb128.h | ||
| libiberty.h | ||
| longlong.h | ||
| lto-symtab.h | ||
| md5.h | ||
| objalloc.h | ||
| obstack.h | ||
| partition.h | ||
| plugin-api.h | ||
| safe-ctype.h | ||
| sha1.h | ||
| simple-object.h | ||
| sort.h | ||
| splay-tree.h | ||
| symcat.h | ||
| timeval-utils.h | ||
| unique-ptr.h | ||
| vtv-change-permission.h | ||
| xregex2.h | ||
| xregex.h | ||
| xtensa-config.h | ||