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The clause makes any device code use the local memory address for each of the variables specified unless the given variable is already present on the current device. 2019-12-19 Julian Brown <julian@codesourcery.com> Maciej W. Rozycki <macro@codesourcery.com> Tobias Burnus <tobias@codesourcery.com> Thomas Schwinge <thomas@codesourcery.com> gcc/ * omp-low.c (lower_omp_target): Support GOMP_MAP_NO_ALLOC. * tree-pretty-print.c (dump_omp_clause): Likewise. gcc/c-family/ * c-pragma.h (pragma_omp_clause): Add PRAGMA_OACC_CLAUSE_NO_CREATE. gcc/c/ * c-parser.c (c_parser_omp_clause_name): Support no_create. (c_parser_oacc_data_clause): Likewise. (c_parser_oacc_all_clauses): Likewise. (OACC_DATA_CLAUSE_MASK, OACC_KERNELS_CLAUSE_MASK) (OACC_PARALLEL_CLAUSE_MASK, OACC_SERIAL_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_NO_CREATE. * c-typeck.c (handle_omp_array_sections): Support GOMP_MAP_NO_ALLOC. gcc/cp/ * parser.c (cp_parser_omp_clause_name): Support no_create. (cp_parser_oacc_data_clause): Likewise. (cp_parser_oacc_all_clauses): Likewise. (OACC_DATA_CLAUSE_MASK, OACC_KERNELS_CLAUSE_MASK) (OACC_PARALLEL_CLAUSE_MASK): Add PRAGMA_OACC_CLAUSE_NO_CREATE. * semantics.c (handle_omp_array_sections): Support no_create. gcc/fortran/ * gfortran.h (gfc_omp_map_op): Add OMP_MAP_NO_ALLOC. * openmp.c (omp_mask2): Add OMP_CLAUSE_NO_CREATE. (gfc_match_omp_clauses): Support no_create. (OACC_PARALLEL_CLAUSES, OACC_KERNELS_CLAUSES) (OACC_DATA_CLAUSES): Add OMP_CLAUSE_NO_CREATE. * trans-openmp.c (gfc_trans_omp_clauses_1): Support OMP_MAP_NO_ALLOC. gcc/testsuite/ * gfortran.dg/goacc/common-block-1.f90: Add no_create-clause tests. * gfortran.dg/goacc/common-block-1.f90: Likewise. * gfortran.dg/goacc/data-clauses.f95: Likewise. * gfortran.dg/goacc/data-tree.f95: Likewise. * gfortran.dg/goacc/kernels-tree.f95: Likewise. * gfortran.dg/goacc/parallel-tree.f95: Likewise. include/ * gomp-constants.h (gomp_map_kind): Support GOMP_MAP_NO_ALLOC. libgomp/ * target.c (gomp_map_vars_async): Support GOMP_MAP_NO_ALLOC. * testsuite/libgomp.oacc-c-c++-common/no_create-1.c: New test. * testsuite/libgomp.oacc-c-c++-common/no_create-2.c: New test. * testsuite/libgomp.oacc-c-c++-common/no_create-3.c: New test. * testsuite/libgomp.oacc-c-c++-common/no_create-4.c: New test. * testsuite/libgomp.oacc-c-c++-common/no_create-5.c: New test. * testsuite/libgomp.oacc-fortran/no_create-1.f90: New test. * testsuite/libgomp.oacc-fortran/no_create-2.f90: New test. * testsuite/libgomp.oacc-fortran/no_create-3.F90: New test. Reviewed-by: Thomas Schwinge <thomas@codesourcery.com> Co-Authored-By: Maciej W. Rozycki <macro@codesourcery.com> Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com> Co-Authored-By: Tobias Burnus <tobias@codesourcery.com> From-SVN: r279551
26 lines
446 B
C
26 lines
446 B
C
#include <float.h> /* For FLT_EPSILON. */
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#include <math.h> /* For fabs. */
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#include <stdlib.h> /* For abort. */
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int main()
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{
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#define N 100
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float b[N];
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float c[N];
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#pragma acc enter data create(b)
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#pragma acc parallel loop no_create(b) no_create(c)
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for (int i = 0; i < N; ++i)
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b[i] = i;
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#pragma acc exit data copyout(b)
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for (int i = 0; i < N; ++i)
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if (fabs (b[i] - i) > 10.0*FLT_EPSILON)
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abort ();
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return 0;
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}
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