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This patch adjusts the implementation of acc_map_data/acc_unmap_data API library routines to more fit the description in the OpenACC 2.7 specification. Instead of using REFCOUNT_INFINITY, we now define a REFCOUNT_ACC_MAP_DATA special value to mark acc_map_data-created mappings. Adjustment around mapping related code to respect OpenACC semantics are also added. libgomp/ChangeLog: * libgomp.h (REFCOUNT_ACC_MAP_DATA): Define as (REFCOUNT_SPECIAL | 2). * oacc-mem.c (acc_map_data): Adjust to use REFCOUNT_ACC_MAP_DATA, initialize dynamic_refcount as 1. (acc_unmap_data): Adjust to use REFCOUNT_ACC_MAP_DATA, (goacc_map_var_existing): Add REFCOUNT_ACC_MAP_DATA case. (goacc_exit_datum_1): Add REFCOUNT_ACC_MAP_DATA case, respect REFCOUNT_ACC_MAP_DATA when decrementing/finalizing. Force lowest dynamic_refcount to be 1 for REFCOUNT_ACC_MAP_DATA. (goacc_enter_data_internal): Add REFCOUNT_ACC_MAP_DATA case. * target.c (gomp_increment_refcount): Return early for REFCOUNT_ACC_MAP_DATA case. (gomp_decrement_refcount): Likewise. * testsuite/libgomp.oacc-c-c++-common/lib-96.c: New testcase. * testsuite/libgomp.oacc-c-c++-common/unmap-infinity-1.c: Adjust testcase error output scan test. |
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